JP7763418B2 - Deburring device - Google Patents

Description

The present invention relates to a deburring device, and in particular to a deburring device that removes thread burrs from resin molded products.

When a resin molded product is formed by injection molding, thin, thread-like burrs can appear on the surface of the molded product at positions corresponding to the mold mating surfaces. Because burrs on the surface of molded products can lead to poor appearance, devices for removing burrs have been proposed. For example, Patent Document 1 describes a finishing device for plastic molded products in which synthetic rubber heated by a heater is pressed against burrs on the molded product, melting the burrs and fusing them to the surface of the molded product, thereby eliminating and removing the burrs. Patent Document 2 also describes an air heater in which a temperature sensor is placed near the hot air outlet, allowing control of the temperature of the hot air being blown out. Patent Document 2 describes deburring plastic parts as an example of an application for an air heater that blows hot air onto a heated object.

JP 2010-137432 A Japanese Patent Application Publication No. 7-198207

However, when a heated object such as heated synthetic rubber is pressed against a molded product to melt the burrs, there is a risk that the molten resin will adhere to the heated object. In this case, part of the surface of the molded product will separate and be removed, which could result in an appearance defect other than the thread burrs. Furthermore, because the temperature of the hot air blown out from the air heater drops immediately after it is released into the atmosphere, there is a risk that even if the temperature is high enough at the hot air outlet, it may be lower at the molded product. For this reason, when removing burrs by blowing hot air from an air heater onto a molded product, it is difficult for the temperature of the surface of the molded product to rise to a temperature that will melt the burrs, making burr removal difficult. For these reasons, it has been extremely difficult to properly remove burrs that have appeared on the surface of molded products and eliminate appearance defects.

The present invention was made in consideration of the above, and aims to provide a deburring device that can improve the appearance of molded products.

To solve the above-mentioned problems and achieve the objectives, the deburring device of the present invention comprises a heater unit having an infrared lamp heater that irradiates infrared rays, a molded product holding section that positions the molded product and holds the molded product, and an orbiting mechanism that orbits the heater unit around the molded product held in the molded product holding section in an orientation that irradiates the infrared rays onto the molded product held in the molded product holding section.

The deburring device of the present invention has the effect of improving the appearance of molded products.

FIG. 1 is an explanatory diagram showing the configuration of a post-molding process device including a deburring device according to the first embodiment. FIG. 2 is a detailed view of the deburring device shown in FIG. FIG. 3 is a cross-sectional view taken along line AA in FIG. FIG. 4 is a detailed view of the heater unit shown in FIG. FIG. 5 is a view taken along the line BB in FIG. FIG. 6 is a detailed view of an infrared lamp heater used in the heater unit. FIG. 7 is a detailed view of the carbonaceous heating element of the infrared lamp heater. FIG. 8 is a side view of an orbital heater device included in the deburring device according to the second embodiment. FIG. 9 is an explanatory diagram showing the configuration of a post-molding process device including a deburring device according to the third embodiment. FIG. 10 is a perspective view of the deburring device shown in FIG. FIG. 11 is a detailed view of the hand unit shown in FIG.

Embodiments of a deburring device according to the present disclosure are described in detail below with reference to the drawings. Note that the present invention is not limited to these embodiments. Furthermore, the components in the following embodiments include those that are interchangeable and readily conceivable to those skilled in the art, or those that are substantially identical.

[Embodiment 1]
1 is an explanatory diagram showing the configuration of a post-molding process device including a deburring device 1 according to embodiment 1. The deburring device 1 according to embodiment 1 is capable of removing thread burrs that appear on the surface of a molded product M made of resin molded by an injection molding machine 100. For this reason, the deburring device 1 is disposed adjacent to the transport path of the molded product M molded by the injection molding machine 100.

<Injection molding machine 100>
An injection molding machine 100 that molds a molded product M has an injection unit 101 and a mold clamping unit 110. The injection unit 101 has a heating barrel 102 that melts a resin material that is the raw material of the molded product M, and a nozzle 103 that injects the resin melted in the heating barrel 102 into a mold 115 that the mold clamping unit 110 has.

The mold clamping unit 110 is positioned opposite the nozzle 103 of the injection unit 101, and has a fixed die 111 and a movable die 112. The movable die 112 is positioned on the opposite side of the fixed die 111 from the side where the injection unit 101 is located, and can be moved relative to the fixed die 111 by a mold clamping mechanism (not shown).

The mold 115, which molds the resin material injected from the injection device 101, is attached to the fixed die 111 and the movable die 112, with the fixed mold 116 attached to the fixed die 111 and the movable mold 117 attached to the movable die 112. The opposing surfaces of the mold 115, the fixed mold 116 and the movable mold 117, are formed in a shape that molds the resin material into the desired shape. The injection molding machine 100 molds the molded product M by injecting the resin material molten by the injection device 101 into the area between the fixed mold 116 and the movable mold 117.

The injection molding machine 100 also has a control device 200 that performs various controls on the injection molding machine 100. The control device 200 has a CPU (Central Processing Unit) that performs arithmetic processing, and RAM (Random Access Memory) and ROM (Read Only Memory) that function as memory for storing various information. All or part of the functions of the control device 200 are realized by loading application programs stored in the ROM into the RAM and executing them on the CPU, thereby reading and writing data from the RAM and ROM. The control device 200 is also capable of controlling peripheral devices of the injection molding machine 100.

<Takeout device 120>
In the injection molding machine 100, a take-out device 120 is arranged from below the mold 115 in the mold clamping device 110 toward the outside of the injection molding machine 100. The take-out device 120 is capable of taking out the molded article M molded in the mold 115 to the outside of the injection molding machine 100. The take-out device 120 is formed, for example, by a so-called belt conveyor that extends from below the mold 115 toward the outside of the injection molding machine 100. The take-out device 120 moves the molded article M molded in the mold 115 along the belt of the belt conveyor, thereby taking out the molded article M to the outside of the injection molding machine 100.

The deburring device 1 is positioned adjacent to the removal device 120, which removes the molded product M molded by the injection molding machine 100. Also, downstream of the removal device 120, a conveying device 140 is positioned, which conveys the molded product M, from which the thread burrs have been removed by the deburring device 1, further downstream on the conveying path of the molded product M. In this embodiment 1, the conveying device 140 is configured as a belt conveyor, just like the removal device 120. Also, in this embodiment 1, the conveying device 140 extends in a direction that intersects with the extension direction of the removal device 120.

<Mobile robot 130>
A mobile robot 130 is disposed near the take-out device 120 to move the molded product M taken out by the take-out device 120. The mobile robot 130 is a so-called articulated robot having multiple joints. The mobile robot 130 is provided with a chuck 135 at the tip of its arm, and the chuck 135 is capable of holding the molded product M. The chuck 135 may be either a clamp chuck or a vacuum chuck, as long as it is capable of holding the molded product M.

The mobile robot 130 is positioned near the deburring device 1, which is positioned adjacent to the removal device 120, and like the deburring device 1, the mobile robot 130 is also positioned adjacent to the removal device 120. More specifically, the mobile robot 130 is positioned on the same side of the removal device 120 as the deburring device 1, and the deburring device 1 and transport device 140 are positioned adjacent to the removal device 120. This allows the mobile robot 130 to move the chuck 135 relative to any of the removal device 120, deburring device 1, and transport device 140.

The mobile robot 130 is also capable of operating in accordance with the molding timing of the injection molding machine 100. The mobile robot 130 is capable of, for example, sending and receiving electrical signals via wire or wirelessly with the control device 200 that controls the injection molding machine 100. This allows the control device 200 that controls the injection molding machine 100 to control the mobile robot 130. Therefore, the mobile robot 130 receives control signals from the control device 200 in accordance with the molding timing of the injection molding machine 100, and operates in accordance with the control signals, thereby operating in accordance with the molding timing of the injection molding machine 100.

<Deburring device 1>
The deburring device 1 is installed on a base frame 3. Fig. 2 is a detailed view of the deburring device 1 shown in Fig. 1. Fig. 3 is a cross-sectional view taken along line A-A in Fig. 2. The deburring device 1 has a molded product holding section 5 that holds a molded product M from which thread burrs are to be removed by the deburring device 1, an orbital heater device 20 having a heater unit 30 that irradiates infrared rays onto the molded product M held by the molded product holding section 5, and rails 11 that are arranged around the molded product holding section 5.

The molded product holding unit 5 is capable of holding the molded product M and positioning the molded product M. For example, multiple protrusions (not shown) that restrict horizontal movement of the molded product M are arranged on the upper surface of the molded product holding unit 5, making it possible to restrict horizontal movement of the molded product M and position the molded product M. As a result, when removing thread burrs from the molded product M using the deburring device 1, the molded product holding unit 5 can position and hold the molded product M from which thread burrs are to be removed in the desired position.

The orbital heater device 20 is capable of traveling along the rail 11. The orbital heater device 20 has a main body 21 that supports the heater unit 30, a grip 22 attached to the main body 21, and a traveling unit 25 that allows the orbital heater device 20 to travel along the rail 11. The main body 21 supports the heater unit 30 in an orientation such that the heater unit 30 is positioned on the side where the molded product holding unit 5 is located when the orbital heater device 20 travels along the rail 11. This allows the orbital heater device 20 to irradiate infrared rays emitted from the heater unit 30 onto the molded product M held by the molded product holding unit 5.

The grip 22 is located above the main body 21 and is the part that an operator grasps with their hand when removing thread burrs from the molded product M using the deburring device 1. The orbital heater device 20 can be moved along the rail 11 by an operator grasping the grip 22 and moving it. More specifically, the grip 22 is a roughly cylindrical shape that is thick enough to be easily gripped by hand, and is positioned to extend upward from the main body 21. Furthermore, the grip 22 can be rotated relative to the main body 21 around the axis of the cylinder that forms the grip 22, allowing the operator to move the orbital heater device 20 while holding it in their hand.

The traveling unit 25, together with the rail 11, constitutes the orbiting mechanism 10. The orbiting mechanism 10 rotates the heater unit 30 around the molded product M held in the molded product holding unit 5 in a direction that irradiates infrared rays onto the molded product M held in the molded product holding unit 5. The traveling unit 25, which constitutes the orbiting mechanism 10 together with the rail 11, is disposed below the main body 21 and has multiple wheels 26. The multiple wheels 26 of the traveling unit 25 are arranged rotatably in a direction that allows it to travel in the extension direction of the rail 11 while supporting the orbiting heater device 20 by contacting the rail 11. This allows the traveling unit 25 to support the heater unit 30 via the main body 21 and travel along the rail 11.

The rail 11 on which the orbital heater device 20 can run is an endless rail that is arranged around the molded product holding unit 5. The rail 11 also has a retraction section 12. Specifically, the distance from the molded product holding unit 5, i.e., the distance from the molded product M held by the molded product holding unit 5, is approximately constant at all positions except for the retraction section 12. Meanwhile, at the retraction section 12, the distance from the molded product holding unit 5 and the molded product M is greater than at other portions of the rail 11. The retraction section 12 is formed by a gentle curve that is convex in the direction in which the distance between the rail 11 and the molded product holding unit 5 increases. The length of the retraction section 12 in the extension direction of the rail 11 is long enough to accommodate one orbital heater device 20 in the same direction.

In embodiment 1, two orbital heater devices 20 are arranged on the rail 11 formed in this manner. The two orbital heater devices 20 are capable of running independently along the rail 11.

<Heater unit 30>
Fig. 4 is a detailed view of the heater unit 30 shown in Fig. 3. Fig. 5 is a view taken along the arrows B-B in Fig. 4. The heater unit 30 is configured such that an infrared lamp heater 40 that irradiates infrared rays is disposed in a lamp case 31, and in this embodiment, three infrared lamp heaters 40 are disposed in the lamp case 31. Each of the three infrared lamp heaters 40 is curved in an arc shape or a U shape, and is disposed in the lamp case 31 in a curved state.

Figure 6 is a detailed diagram of the infrared lamp heater 40 used in the heater unit 30. The infrared lamp heater 40 used in this embodiment 1 uses a carbonaceous heating element 41 as a heating element. The carbonaceous heating element 41 has a high melting point and can be used at high temperatures, making it possible to increase energy density. The infrared lamp heater 40 has a plate-shaped carbonaceous heating element 41 sealed in a glass tube 45 filled with an inert gas. Lead wires 44 are connected to both ends of the carbonaceous heating element 41 in the glass tube 45 in the longitudinal direction. The lead wires 44 are connected to a power source (not shown) and can supply power from the power source to the carbonaceous heating element 41 in the glass tube 45. As a result, the infrared lamp heater 40 is able to radiate infrared rays by heating the carbonaceous heating element 41 using power supplied from the lead wires 44 to the carbonaceous heating element 41.

Figure 7 is a detailed view of the carbonaceous heating element 41 of the infrared lamp heater 40. Figure 7 is a planar development of the carbonaceous heating element 41 shown in Figure 6. The carbonaceous heating element 41 of the infrared lamp heater 40 is formed in the shape of a long, thin plate, with lead wire connection portions 42 formed at both ends in the longitudinal direction. The lead wires 44 connected to the infrared lamp heater 40 are each connected to the lead wire connection portions 42 located at both ends in the longitudinal direction of the carbonaceous heating element 41.

The carbonaceous heating element 41 has alternating opposing slits 43 cut from one longitudinal edge to just short of the other longitudinal edge between the lead wire connection portions 42 at both ends. Adjacent slits 43 in the longitudinal direction of the carbonaceous heating element 41 are formed at equal intervals, and the intervals between these slits 43 are standardized to the same dimension as the remaining gaps in each slit 43.

The infrared lamp heater 40, in which the carbonaceous heating element 41 formed in this manner is sealed in a glass tube 45, is curved so that the thickness direction of the carbonaceous heating element 41 inside the glass tube 45 is the radial direction of the curve. The carbonaceous heating element 41 is formed so that at least the area in which the slit 43 is formed is located in the curved portion.

The heater unit 30 is formed by placing three curved infrared lamp heaters 40 inside a lamp case 31. When viewed in the axial direction of the curvature inside the lamp case 31, the three infrared lamp heaters 40 are arranged so that they overlap and are curved in the same direction (see Figure 4).

The three infrared lamp heaters 40 are also arranged within the lamp case 31 so that the distance between adjacent infrared lamp heaters 40 is smaller on the curved, arc-shaped side than on the side where the lead wires 44 are connected (see Figure 5).

The lamp case 31, inside which the three infrared lamp heaters 40 are arranged, is open at least in a portion located near the curved, arc-shaped portion of the infrared lamp heaters 40. In other words, the curved, arc-shaped portion of the infrared lamp heaters 40 is exposed to the outside of the lamp case 31. In this way, the opening in the lamp case 31, where the infrared lamp heaters 40 are exposed to the outside of the lamp case 31, is formed as the irradiation section 32 of the infrared lamp heaters 40. The irradiation section 32 is the section that irradiates the infrared rays generated by the infrared lamp heaters 40 toward the outside of the lamp case 31, and is the section that irradiates the infrared rays to any irradiation target.

When the orbital heater device 20 is placed on the rail 11, the heater unit 30 is placed on the orbital heater device 20 with the irradiation unit 32 facing inward on the rail 11, which is placed around the molded product holding unit 5, i.e., in the direction in which the molded product holding unit 5 is placed. Furthermore, when the orbital heater device 20 is placed on the rail 11, the heater unit 30 is placed in a position such that when the molded product M is placed on the molded product holding unit 5, the vertical position of the irradiation unit 32 is approximately the same as the vertical position of the molded product M.

<Action of Deburring Device 1>
The deburring device 1 according to the first embodiment has the above-described configuration, and its operation will be described below. A molded product M, from which thread burrs on the surface have been removed by the deburring device 1, is molded by an injection molding machine 100. The injection molding machine 100 injects a molten resin material into a mold 115 held by a mold clamping device 110, and molds the molded product M by the mold 115. The molded product M molded by the injection molding machine 100 is removed to the outside of the injection molding machine 100 by an ejection device 120 arranged from below the mold 115 toward the outside of the injection molding machine 100.

When molding a molded product M using the injection molding machine 100, the injection molding machine 100 performs a series of steps to mold the molded product M, and the injection molding machine 100 repeatedly performs this series of steps to continuously mold the molded product M. In this way, the injection molding machine 100 molds the molded product M each time a series of steps for molding the molded product M is performed, and therefore the injection molding machine 100 molds the molded product M intermittently.

The removal device 120 removes the molded product M, which is molded intermittently as this series of processes is performed, from the injection molding machine 100 to the outside of the injection molding machine 100. That is, the removal device 120 removes the molded product M molded by the injection molding machine 100 from below the mold 115 of the injection molding machine 100 to the outside of the injection molding machine 100 using a belt conveyor. When the molded product M transported by the removal device 120 has been transported to a position where it can be held by the chuck 135 of the mobile robot 130, the mobile robot 130 extends its arm and holds the molded product M with the chuck 135.

In other words, the mobile robot 130 can be controlled by the control device 200 that controls the injection molding machine 100. This allows the control device 200 to control both the injection molding machine 100 and the mobile robot 130, allowing the mobile robot 130 to operate in accordance with the molding timing of the injection molding machine 100. As a result, the mobile robot 130 operates in accordance with the timing when the molded product M molded by the injection molding machine 100 is removed by the removal device 120 and transported by the removal device 120 to the vicinity of the mobile robot 130, and holds the molded product M with the chuck 135.

Once the mobile robot 130 has held the molded product M, it places the held molded product M on the molded product holding unit 5 of the deburring device 1. The molded product holding unit 5 is capable of restricting the horizontal movement of the molded product M and positioning the molded product M. Therefore, by having the mobile robot 130 place the molded product M on the molded product holding unit 5 and holding it in the molded product holding unit 5, the molded product M can be positioned relative to the orbiting mechanism 10 of the deburring device 1.

Specifically, when molding is performed by the injection molding machine 100, the molded product M is placed on the molded product holding unit 5 with the outer peripheral surface of the mating surface between the fixed mold 116 and the movable mold 117 facing the side where the rail 11 is located, i.e., facing outward. In other words, the molded product M is placed on the molded product holding unit 5 so that the outer peripheral surface of the mating surface between the fixed mold 116 and the movable mold 117 of the injection molding machine 100 is positioned relative to the rail 11 of the orbiting mechanism 10, along the inner periphery of the rail 11, and is positioned by holding the molded product M with the molded product holding unit 5. In other words, when the molded product M is held by the molded product holding unit 5, the rail 11 is positioned around the molded product holding unit 5 along the outer peripheral surface of the outer peripheral surface of the mating surface between the fixed mold 116 and the movable mold 117 of the molded product M.

Once the molded product M is held by the molded product holding section 5, the worker responsible for removing burrs from the molded product M uses the orbital heater device 20 of the deburring device 1 to remove the burrs. The worker turns on the power supply to the heater unit 30 of one of the two orbital heater devices 20 arranged on the rail 11, supplying power to the heater unit 30. At the same time, the power supply to the heater unit 30 of the other orbital heater device 20 is turned off and the other orbital heater device 20 is positioned in the retraction section 12 of the rail 11. The power supply to the heater unit 30 of the orbital heater device 20 is turned on and off using a power switch (not shown) arranged on the orbital heater device 20. The power switch is arranged, for example, on the main body 21 of the orbital heater device 20.

When power is supplied to the orbital heater device 20, the carbonaceous heating element 41 of the infrared lamp heater 40 in the heater unit 30 generates heat and emits infrared rays. The infrared rays emitted from the carbonaceous heating element 41 of the infrared lamp heater 40 are irradiated from the irradiation section 32, which is an opening in the lamp case 31 of the heater unit 30, toward the outside of the lamp case 31.

The irradiation section 32 of the heater unit 30 of the orbital heater device 20 faces the direction in which the molded product holding section 5 is located, and its vertical position is approximately the same as the position of the molded product M held by the molded product holding section 5. Therefore, the infrared rays emitted from the infrared lamp heater 40 are irradiated from the irradiation section 32 of the heater unit 30 onto the molded product M held by the molded product holding section 5.

When infrared rays are irradiated onto molded product M, the temperature of the irradiated portions rises due to the infrared rays. Here, molded product M is held by molded product holder 5 with the outer peripheral surface of the mating surface between fixed mold 116 and movable mold 117 facing outward when molded by injection molding machine 100. During molding by injection molding machine 100, resin material is injected into mold 115 at high pressure, which can cause a small amount of molten resin to leak from the mating surface between fixed mold 116 and movable mold 117, resulting in the formation of burrs. The deburring device 1 can remove burrs from molded product M that may have burrs on its outer peripheral surface by irradiating infrared rays from heater unit 30.

In other words, the deburring device 1 raises the temperature near the surface of the molded product M by irradiating the molded product M with infrared rays from the heater unit 30. Because thread burrs have a small volume relative to their surface area, their temperature easily rises and they melt easily as the temperature rises. Therefore, thread burrs can be removed by raising the temperature and melting them.

In particular, the infrared lamp heater 40 according to this embodiment 1 uses a carbonaceous heating element 41 as the heating element, allowing it to be used at high temperatures, with high energy and high energy density. Furthermore, the heater unit 30 has three infrared lamp heaters 40, and the distance between the three infrared lamp heaters 40 is reduced near the irradiation section 32 of the lamp case 31. This further increases the energy of the infrared rays irradiated from the irradiation section 32.

As a result, when molded product M is irradiated with infrared rays from heater unit 30, the high-energy infrared rays easily melt any burrs that have formed on the surface of molded product M, and the molten resin adheres to the surface of molded product M, eliminating the burrs. In this way, by irradiating molded product M with high-energy infrared rays from heater unit 30, the deburring device 1 can easily melt burrs that have formed on the surface of molded product M, eliminating and removing the burrs without separating them from molded product M.

When removing thread burrs from a molded product M using the deburring device 1, the worker moves the orbital heater device 20 along the rail 11 while irradiating the molded product M with infrared rays from the heater unit 30. The orbital heater device 20 starts near the retraction section 12 formed in the rail 11 and moves along the rail 11. When moving the orbital heater device 20, the worker grasps the grip 22 of the orbital heater device 20 with their hands and moves it.

The rails 11 are arranged around the molded product holding unit 5, along the outer periphery of the mating surface between the fixed mold 116 and the movable mold 117 of the molded product M held by the molded product holding unit 5. Therefore, by moving the orbital heater device 20 along the rails 11 while irradiating infrared rays, it is possible to irradiate the mating surface between the fixed mold 116 and the movable mold 117 of the molded product M with infrared rays.

While irradiating the molded product M with infrared rays, the worker moves the orbital heater device 20 along the rail 11, moving the orbital heater device 20 approximately one full rotation along the rail 11 to the part of the rail 11 where the retreat section 12 is formed. This allows the heater unit 30 of the orbital heater device 20 to irradiate the molded product M with infrared rays along the outer periphery of the mating surface between the fixed mold 116 and the movable mold 117 of the molded product M, approximately around one circumference of the molded product M. After infrared rays are irradiated from the heater unit 30 of the orbital heater device 20 around approximately one circumference of the outer periphery of the mating surface between the fixed mold 116 and the movable mold 117 of the molded product M, the infrared rays melt and remove any burrs on the molded product M, approximately around one circumference.

In this way, the molded product M, from which the burrs have been removed by the infrared rays emitted from the heater unit 30, is moved from the molded product holding unit 5 by the mobile robot 130. More specifically, the mobile robot 130 holds the molded product M held by the molded product holding unit 5 with the chuck 135, and moves the molded product M from the position of the molded product holding unit 5 onto the conveying device 140. Once the mobile robot 130 has moved the molded product M onto the conveying device 140, it places it on the conveying device 140.

Since the conveying device 140 is composed of a belt conveyor, the molded product M placed on the conveying device 140 is transported to the subsequent process by the conveying device 140. In other words, the molded product M from which the thread burrs have been removed by the deburring device 1 is transported to the subsequent process by the conveying device 140.

After transferring the molded product M from the molded product holding unit 5 to the transport device 140, the mobile robot 130 then uses the chuck 135 to hold the molded product M, which has been molded by the injection molding machine 100 and removed from the injection molding machine 100 by the removal device 120, and places it on the molded product holding unit 5. In other words, because the injection molding machine 100 continuously molds molded products M, the removal device 120 continuously removes and transports the molded products M molded by the injection molding machine 100.

The mobile robot 130 places the molded product M being transported by the removal device 120 on the molded product holding section 5 and holds it there, and moves the molded product M held by the molded product holding section 5 to the transport device 140, in accordance with the timing of the transport of the molded product M being continuously transported by the removal device 120. When molding the molded product M using the injection molding machine 100, the mobile robot 130 repeatedly performs these operations. When molding the molded product M using the injection molding machine 100, the timing of the operations of the mobile robot 130 that perform these operations is set in advance to match the molding timing of the injection molding machine 100.

After the burrs on the molded product M are removed using the orbital heater device 20, the molded product M held by the molded product holding unit 5 is replaced by the mobile robot 130, and the worker then replaces the orbital heater device 20 that is performing the burr removal work and removes the burrs.

In other words, after the orbital heater device 20 removes the thread burrs from the molded product M and the mobile robot 130 removes the molded product M from the molded product holding section 5, the worker turns off the power supply to the heater unit 30 of the orbital heater device 20 that had been in use until then. Meanwhile, the worker turns on the power supply to the heater unit 30 of the orbital heater device 20 that had been located in the evacuation section 12 until then, moves the orbital heater device 20 from the evacuation section 12, and positions the orbital heater device 20, with the power supply to the heater unit 30 turned off, in the evacuation section 12.

For the molded product M newly held in the molded product holding section 5, the power supply to the heater unit 30 is turned on and the molded product holding section 5 is moved from the retracted section 12 to perform the burr removal work. In other words, while infrared rays from the infrared lamp heater 40 are irradiated onto the molded product M from the irradiation section 32 of the heater unit 30, the orbital heater device 20 is moved along the rail 11, irradiating the infrared rays around almost one circumference of the molded product M. In this way, the thread burrs are removed from the molded product M newly held in the molded product holding section 5.

During this time, the power supply to the heater unit 30 is turned off, and the orbital heater device 20 positioned in the evacuation section 12 of the rail 11 cools down, lowering the temperature of the infrared lamp heater 40, which had been at a high temperature. In other words, while the deburring device 1 is removing thread burrs from the molded product M, the period when the power supply to the heater unit 30 is turned off and the heater unit 30 is positioned in the evacuation section 12 is the cooling period for the infrared lamp heater 40. When cooling the infrared lamp heater 40, the orbital heater device 20 is positioned in the evacuation section 12 and the heater unit 30 is separated from the molded product M, and cooling is performed.

When using the deburring device 1 to remove burrs from molded products M that are continuously molded using the injection molding machine 100, the two orbital heater devices 20 arranged on the rail 11 are used alternately for each molded product M, allowing for continuous removal of burrs.

<Effects of First Embodiment>
The deburring device 1 according to the first embodiment described above has an orbiting mechanism 10 that can rotate the heater unit 30 around the molded product M held in the molded product holding section 5 in a direction that irradiates infrared rays onto the molded product M. As a result, even if a burr occurs on the outer surface of the mating surface of the mold 115 of the molded product M molded by the injection molding machine 100, the infrared rays irradiated from the heater unit 30 that orbits around the molded product M can melt the burr and remove it. As a result, the appearance of the molded product M can be improved.

In addition, in the deburring device 1 according to embodiment 1, the orbiting mechanism 10 that orbits the heater unit 30 is made up of a rail 11 that is arranged around the molded product holding section 5 and a traveling unit 25 that supports the heater unit 30 and travels on the rail 11. This makes it easy to configure the orbiting mechanism 10 that orbits the heater unit 30 around the molded product M, and allows the heater unit 30 to irradiate infrared rays onto the molded product M from around the molded product M. As a result, the appearance of the molded product M can be easily improved.

In addition, the infrared lamp heater 40 uses a carbonaceous heating element 41 that can be used at high temperatures as its heating element, so it can quickly raise the temperature of any burrs that have formed on the molded product M, allowing the burrs to be removed in a short time. As a result, the time required to remove the burrs can be shortened, and the appearance of the molded product M can be efficiently improved.

Furthermore, the infrared lamp heater 40 uses a carbonaceous heating element 41 as a heating element. While the carbonaceous heating element 41 can be used at high temperatures and has a high energy density, it is susceptible to damage and breakage when subjected to a large impact. In contrast, in the deburring device 1 according to embodiment 1, the orbital heater device 20 equipped with the heater unit 30 can be moved along the rails 11 that constitute the orbital mechanism 10. As a result, when switching the heater unit 30 ON/OFF to start use or when cooling the infrared lamp heater 40, the operating state of the heater unit 30 can be switched without impacting the infrared lamp heater 40. This prevents impacts from being applied to the carbonaceous heating element 41 of the infrared lamp heater 40, thereby preventing damage and even breakage of the carbonaceous heating element 41. As a result, interruptions to the thread deburring process due to a malfunction of the heater unit 30 can be minimized, thereby improving manufacturing efficiency during the production of the molded product M.

In addition, because the infrared lamp heater 40 of the heater unit 30 is curved in a U-shape, the shape of the irradiation section 32, which is the part of the heater unit 30 that irradiates infrared rays, i.e., the shape of the part of the heater unit 30 that faces the molded product M, can be made compact. As a result, even if a flange-shaped or protruding member is formed on the molded product M near the part that is irradiated with infrared rays from the heater unit 30, the rail 11 can be positioned so that the heater unit 30 is as close as possible to the molded product M. Therefore, regardless of the shape of the molded product M, infrared rays can be irradiated from the heater unit 30 to the molded product M at an appropriate distance. As a result, burrs that occur on the surface of the molded product M can be removed regardless of the shape of the molded product M.

[Embodiment 2]
The deburring device 1 according to the second embodiment has substantially the same configuration as the deburring device 1 according to the first embodiment, but is characterized in that the traveling unit 25 has a drive motor 50. Since the other configurations are the same as those of the first embodiment, the description thereof will be omitted and the same reference numerals will be used.

Figure 8 is a side view of the orbital heater device 20 included in the deburring device 1 according to embodiment 2. In the deburring device 1 according to embodiment 2, the heater unit 30 is arranged in the orbital heater device 20, similar to the deburring device 1 according to embodiment 1. The orbital heater device 20 includes a main body 21 that supports the heater unit 30 and a traveling unit 25 that moves the orbital heater device 20 along the rail 11. The traveling unit 25, together with the rail 11, constitutes the orbital mechanism 10 that moves the heater unit 30 around the molded product M held in the molded product holding section 5 in a direction that irradiates infrared rays onto the molded product M. For this reason, the traveling unit 25 has multiple wheels 26 that rotate while in contact with the rail 11.

In addition, in embodiment 2, the traveling unit 25 has a drive motor 50, which is a drive source for self-propelled travel on the rails 11. In embodiment 2, a drive motor 50 is provided for each of the multiple wheels 26 of the traveling unit 25, and each of the multiple wheels 26 can be rotated by the driving force generated by the drive motor 50.

The drive motor 50 can be controlled by the control device 200, which controls the injection molding machine 100, for example, by transmitting an electrical signal wirelessly from the control device 200. In addition, in the second embodiment, the control device 200 can also control the ON/OFF switching of the power supply to the heater unit 30 of the orbital heater device 20.

Furthermore, in embodiment 2, the orbital heater device 20 is not provided with a grip 22 (see Figure 3) that an operator would grasp with their hand. That is, in embodiment 2, the orbital heater device 20 is capable of self-propelling using the driving force generated by the drive motor 50, and therefore does not have a grip 22 that an operator would use to move the orbital heater device 20. In embodiment 2, two orbital heater devices 20 configured in this manner are arranged on the rail 11, just like in embodiment 1.

<Operation of Embodiment 2>
In the second embodiment, similarly to the first embodiment, the molded product M molded by the injection molding machine 100 is removed by the removal device 120. The molded product M removed by the removal device 120 is held by the mobile robot 130 and placed on the molded product holding unit 5, where it is held.

In the deburring device 1, which holds the molded product M in the molded product holding section 5, one of the two orbital heater devices 20 arranged on the rail 11 has its power supply to the heater unit 30 turned ON, and the other orbital heater device 20 has its power supply to the heater unit 30 turned OFF. In other words, the orbital heater devices 20 of the deburring device 1 are controlled by the control device 200 that controls the injection molding machine 100, so that the power supply to the heater unit 30 of the orbital heater device 20 is switched and the drive motor 50 is controlled in accordance with the timing of molding of the molded product M by the injection molding machine 100.

The orbital heater device 20 whose power supply to the heater unit 30 is turned ON is driven by the drive motor 50 of the traveling unit 25, causing it to self-propel along the rail 11. As a result, the orbital heater device 20 whose power supply to the heater unit 30 is turned ON travels around the molded product M held in the molded product holding section 5 along the rail 11 while irradiating infrared rays from the heater unit 30 onto the molded product M. When infrared rays are irradiated from the heater unit 30 of the orbital heater device 20, any burrs that have formed on the surface of the molded product M are melted by the infrared rays irradiated from the heater unit 30 and removed from the surface of the molded product M.

Meanwhile, the orbital heater device 20 whose power supply to the heater unit 30 has been turned off moves to the evacuation section 12 on the rail 11. As a result, the power supply to the heater unit 30 is turned off, and the orbital heater device 20, which is not emitting infrared rays from the heater unit 30, waits in the evacuation section 12 with the heater unit 30 away from the molded product M.

The orbital heater device 20 whose heater unit 30 has had its power supply turned on starts from a position near the evacuation section 12 formed on the rail 11, travels along the rail 11 by itself, makes approximately one full circle around the rail 11, and returns to a position near the evacuation section 12, completing the operation of removing thread burrs from the molded product M currently held in the molded product holding section 5.

The mobile robot 130 holds the molded product M, from which the burrs have been removed, in the chuck 135 and moves it from the molded product holding section 5 onto the transfer device 140. The molded product M moved onto the transfer device 140 is transported by the transfer device 140 to a process following the process of removing the burrs from the molded product M. After moving the molded product M from the molded product holding section 5 onto the transfer device 140, the mobile robot 130 moves the molded product M being transported by the take-out device 120 to the molded product holding section 5 and places it on the molded product holding section 5 once the molded product M removed from the injection molding machine 100 by the take-out device 120 has been transported by the take-out device 120 to the vicinity of the mobile robot 130.

Meanwhile, for the orbital heater device 20 that has completed the operation of removing thread burrs from the molded product M, the power supply to the heater unit 30 is switched OFF by the control device 200 that controls the injection molding machine 100. Meanwhile, the orbital heater device 20 that was previously located in the retraction section 12 and had its power supply to the heater unit 30 switched ON by the control device 200, and the drive motor 50 is driven, causing the orbital heater device 20, whose power supply to the heater unit 30 has been switched OFF, to move out of the retraction section 12 on the rail 11. The orbital heater device 20 whose power supply to the heater unit 30 has been switched OFF then moves to the retraction section 12 on the rail 11. As a result, the deburring device 1 switches over to the orbital heater device 20 that will remove thread burrs from the molded product M newly held in the molded product holding section 5.

The orbital heater device 20 whose power supply has been switched ON irradiates infrared rays from the heater unit 30 onto the molded product M newly held in the molded product holding section 5. That is, the orbital heater device 20 whose power supply has been switched ON irradiates infrared rays from the heater unit 30 onto the molded product M while traveling along the rail 11 by the driving force generated by the drive motor 50, and travels around the molded product M. In this way, in embodiment 2, the orbital heater device 20 that irradiates infrared rays onto the molded product M is switched for each molded product M held in the molded product holding section 5, and the orbital heater device 20 travels along the rail 11.

<Effects of the Second Embodiment>
In the deburring device 1 according to the second embodiment, the traveling unit 25 of the orbital heater device 20 has a drive motor 50, which is a drive source for self-propelling on the rail 11, so that the orbital heater device 20 can be moved along the rail 11 without the need for an operator to move the orbital heater device 20. As a result, when removing thread burrs from a molded product M using the deburring device 1, the operator can remove the thread burrs without having to move the orbital heater device 20, thereby reducing the number of workers required. As a result, the appearance of the molded product M can be improved while suppressing increases in manufacturing costs.

[Embodiment 3]
The deburring device 1 according to the third embodiment has substantially the same configuration as the deburring device 1 according to the first embodiment, but is characterized in that the orbiting mechanism 10 has an articulated robot 60. Since the other configurations are the same as those of the first embodiment, the description thereof will be omitted and the same reference numerals will be used.

Figure 9 is an explanatory diagram showing the equipment configuration of a post-molding process including a deburring device 1 according to embodiment 3. Like the deburring device 1 according to embodiment 1, the deburring device 1 according to embodiment 3 is arranged adjacent to an extraction device 120 that extracts a molded product M molded by an injection molding machine 100. The deburring device 1 is installed on a base stand 3 that is arranged adjacent to the extraction device 120. A mobile robot 130 that moves the molded product M is arranged between the deburring device 1 and a transport device 140 that transports the molded product M, from which thread burrs have been removed by the deburring device 1, to a subsequent process.

Figure 10 is a perspective view of the deburring device 1 shown in Figure 9. In the deburring device 1 according to the third embodiment, the heater unit 30 is supported by an articulated robot 60. In this third embodiment, a so-called vertical articulated robot is used as the articulated robot 60. A hand unit 65 is disposed at the tip of the arm of the articulated robot 60, and the heater unit 30 is supported by the hand unit 65.

The articulated robot 60, which supports the heater unit 30 with a hand portion 65, is capable of moving the heater unit 30 in various directions. For this reason, in embodiment 3, the articulated robot 60 constitutes an orbiting mechanism 10 that orbits the heater unit 30 around the molded product M. In other words, the articulated robot 60 is capable of orbiting the heater unit 30 around the molded product M held in the molded product holding portion 5.

Figure 11 is a detailed view of the hand unit 65 shown in Figure 10. Multiple heater units 30 are arranged on the articulated robot 60. In this embodiment 3, two heater units 30 are supported by the hand unit 65 of the articulated robot 60. The two heater units 30 are supported by the hand unit 65 on the side opposite the side where the irradiation unit 32 is located. Furthermore, the two heater units 30 are supported in orientations such that the irradiation units 32 face in different directions.

In this third embodiment, the two heater units 30 are positioned facing in directions that are approximately 90° apart from each other from the hand unit 65. The articulated robot 60 can rotate the heater units 30 around the molded product M held in the molded product holding unit 5 by rotating the hand unit 65 and operating the arms.

At this time, the articulated robot 60 can rotate the heater unit 30 around the molded product M while continuing to point the irradiation portion 32 of any of the two heater units 30 supported by the hand portion 65 in the direction in which the molded product M is located. In other words, the articulated robot 60 can rotate the heater unit 30 around the molded product M while continuing to irradiate the molded product M with infrared rays from any of the heater units 30.

Furthermore, the articulated robot 60 supporting two heater units 30 in this manner is capable of switching the heater unit 30 that irradiates infrared rays onto the molded product M each time the heater unit 30 rotates around the molded product M held in the molded product holding section 5.

The articulated robot 60, which operates in this manner, is capable of sending and receiving electrical signals via wire or wirelessly to and from the control device 200, which controls the injection molding machine 100, for example. This allows the control device 200 to control the articulated robot 60. As a result, the articulated robot 60 receives control signals from the control device 200 in accordance with the molding timing of the injection molding machine 100, and operates in accordance with the control signals, thereby operating appropriately in accordance with the molding timing of the injection molding machine 100.

Furthermore, the deburring device 1 according to embodiment 3 includes a heater replacement device 70 that replaces the heater unit 30 supported by the articulated robot 60 (see FIG. 9). The heater replacement device 70 includes a spare heater unit 35, which is a spare heater unit 30, and is positioned near the articulated robot 60. The heater replacement device 70 may be, for example, a tool changer for an articulated robot or a robot hand changer. In other words, the heater replacement device 70 has a configuration similar to that of a device that replaces work tools attached to the end of the arm of an industrial articulated robot, and is capable of replacing the heater unit 30 supported by the hand portion 65 of the articulated robot 60 with the spare heater unit 35.

<Operation of Embodiment 3>
In the third embodiment, similarly to the first embodiment, the molded product M molded by the injection molding machine 100 is removed by the removal device 120. The molded product M removed by the removal device 120 is held by the mobile robot 130 and placed on the molded product holding unit 5, where it is held.

When the deburring device 1 holds the molded product M in the molded product holding section 5, the power supply to one of the two heater units 30 supported by the articulated robot 60 is turned ON and the power supply to the other heater unit 30 is turned OFF. In other words, the articulated robot 60 is controlled by the control device 200 that controls the injection molding machine 100, and the power supply to the heater unit 30 supported by the articulated robot 60 is switched and the heater unit 30 is rotated in accordance with the timing of the molding of the molded product M by the injection molding machine 100.

The articulated robot 60 rotates the heater unit 30 around the molded product M while pointing the irradiation section 32 of the heater unit 30, of the two heater units 30 supported by the articulated robot 60, that has its power supply turned ON, toward the molded product M held by the molded product holding section 5. In more detail, the articulated robot 60 rotates the heater unit 30 while pointing the irradiation section 32 of the heater unit 30 toward the outer peripheral surface of the mating surface between the fixed mold 116 and the movable mold 117 of the injection molding machine 100 in the molded product M.

As a result, the articulated robot 60 rotates the heater unit 30 along the outer periphery of the mating surface between the fixed mold 116 and the movable mold 117 of the injection molding machine 100 while irradiating the outer periphery of the mating surface of the molded product M with infrared rays from the irradiation section 32 of the heater unit 30. In this embodiment 3, the articulated robot 60 rotates the heater unit 30 once along the outer periphery of the mating surface between the fixed mold 116 and the movable mold 117 of the molded product M while irradiating the molded product M with infrared rays from the heater unit 30.

At this time, of the two heater units 30 supported by the articulated robot 60, the heater unit 30 with its power supply turned off moves around the molded product M together with the heater unit 30 with its power supply turned on, without emitting infrared light.

When infrared rays are irradiated from the heater unit 30 supported by the articulated robot 60 on the molded product M, any burrs that have formed on the surface are melted by the infrared rays irradiated from the heater unit 30 and removed from the surface of the molded product M. When the heater unit 30 that has its power supply turned on irradiates infrared rays all around the molded product M, the operation to remove burrs from the molded product M currently held by the molded product holding unit 5 is completed.

Here, the articulated robot 60 not only rotates the heater unit 30 around the molded product M, but also moves the heater unit 30 up and down and changes the orientation of the heater unit 30 relative to the molded product M. Therefore, when removing burrs from the molded product M by rotating the heater unit 30 around the molded product M, the heater unit 30 may be moved up and down or the orientation of the heater unit 30 may be changed depending on the shape of the molded product M near the mating surface between the fixed mold 116 and movable mold 117 of the injection molding machine 100.

The mobile robot 130 moves the molded product M, from which the burrs have been removed in this manner, from the position of the molded product holding unit 5 onto the conveying device 140. The molded product M moved onto the conveying device 140 is transported by the conveying device 140 to a process subsequent to the process of removing the burrs from the molded product M. After moving the molded product M from the position of the molded product holding unit 5 onto the conveying device 140, the mobile robot 130 moves the molded product M being transported by the remover 120 to the molded product holding unit 5 and places it on the molded product holding unit 5 once the molded product M removed from the injection molding machine 100 by the remover 120 has been transported by the remover 120 to the vicinity of the mobile robot 130.

Meanwhile, after the articulated robot 60 has completed the operation of removing thread burrs from the molded product M, the control device 200, which controls the injection molding machine 100, switches the power supply to the heater units 30 on and off. In other words, of the two heater units 30 supported by the articulated robot 60, the power supply to the heater unit 30 that was on is switched off, and the power supply to the heater unit 30 that was off is switched on.

For a newly held molded product M in the molded product holding section 5, the articulated robot 60 rotates the heater unit 30 around the molded product M while irradiating infrared rays from the heater unit 30 whose power supply has been switched ON onto the molded product M. In other words, the articulated robot 60 rotates the heater unit 30 once along the outer circumferential surface of the mating surface between the fixed mold 116 and the movable mold 117 of the molded product M while irradiating infrared rays from the heater unit 30 whose power supply has been switched ON onto the molded product M. In this way, in embodiment 3, the articulated robot 60 rotates the heater unit 30 around the molded product M while switching the heater unit 30 that irradiates infrared rays onto the molded product M for each molded product M held in the molded product holding section 5.

Furthermore, in embodiment 3, when a failure of the heater unit 30 supported by the articulated robot 60 is detected, the heater replacement device 70 replaces the heater unit 30 supported by the articulated robot 60 with a spare heater unit 35. More specifically, when the deburring device 1 removes thread burrs from the molded product M, the control device 200 detects the current value when power is supplied to the heater unit 30. If the current value detected when power is supplied to the heater unit 30 becomes zero, it can be determined that the heater unit 30 has failed. Specifically, it can be determined that the carbonaceous heating element 41 of the infrared lamp heater 40 of the heater unit 30 has broken down and current has stopped flowing, and the control device 200 can detect that the heater unit 30 has failed.

In this way, if a failure of the heater unit 30 is detected based on the current value when power is supplied to the heater unit 30, the control device 200 controls the articulated robot 60 to have the heater replacement device 70 replace the heater unit 30. As a result, the articulated robot 60 moves the hand unit 65 toward the heater replacement device 70 and replaces the heater unit 30 supported by the hand unit 65 in which the failure was detected with the spare heater unit 35 provided by the heater replacement device 70. After the heater unit 30 supported by the hand unit 65 has been replaced, the control device 200 causes the articulated robot 60 to perform normal operation. In other words, after replacing the heater unit 30 in which the failure was detected, the articulated robot 60 continues to remove any thread burrs that have occurred on the molded product M.

When molding a molded product M using the injection molding machine 100, the mold 115 may be replaced to mold a molded product M of a different shape. In the deburring device 1 according to this third embodiment, the heater unit 30 is rotated by the articulated robot 60. Therefore, even if the shape of the molded product M molded by the injection molding machine 100 changes, the heater unit 30 can be rotated by the articulated robot 60 to match the shape of the molded product M.

Specifically, the control device 200 is programmed with a program for the operation of the articulated robot 60 for each mold 115 used when molding with the injection molding machine 100, i.e., for each shape of the molded product M expected to be molded with the injection molding machine 100. In other words, for each shape of the molded product M expected to be molded with the injection molding machine 100, the trajectory of the heater unit 30 as it rotates is set in advance, and the control device 200 is programmed with a program for operating the articulated robot 60 to reproduce that trajectory.

For this reason, when the mold 115 of the injection molding machine 100 is replaced, changing the shape of the molded product M molded by the injection molding machine 100, the heater unit 30 can be rotated to match the shape of the molded product M by switching the program for operating the articulated robot 60. As a result, the deburring device 1 of embodiment 3 can remove thread burrs that have occurred on the surface of the molded product M by using the infrared rays emitted by the heater unit 30, even if the shape of the molded product M molded by the injection molding machine 100 is changed.

<Effects of the Third Embodiment>
In the deburring device 1 according to the third embodiment, the rotation mechanism 10 uses an articulated robot 60, and the heater unit 30 rotates around the molded product M held in the molded product holding section 5 by operating the articulated robot 60 that supports the heater unit 30. As a result, when the heater unit 30 rotates while irradiating the molded product M with infrared rays, the heater unit 30 can be rotated without previously installing the rails 11 for rotating the heater unit 30, as in the first embodiment. As a result, the appearance of the molded product M can be easily improved.

In addition, because the heater unit 30 is rotated by the articulated robot 60, even if the shape of the molded product M from which burrs are to be removed changes, the articulated robot 60 can easily rotate the heater unit 30 along the molded product M to match the shape of the molded product M. This allows infrared rays to be emitted from the heater unit 30, which rotates along the shape of the molded product M, regardless of the shape of the molded product M, and burrs can be removed. As a result, the appearance of the molded product M can be improved regardless of the shape of the molded product M.

In addition, because the heater unit 30 is rotated by the articulated robot 60, the work of removing thread burrs from the molded product M using the deburring device 1 can be automated, reducing the number of workers required. As a result, the appearance of the molded product M can be improved while suppressing increases in manufacturing costs.

In addition, because the heater unit 30 is rotated by the articulated robot 60, infrared radiation can be started and stopped on the molded product M without causing any impact to the infrared lamp heater 40. As a result, it is possible to prevent the burr removal work from being unable to be performed due to a break in the carbonaceous heating element 41.

In addition, two heater units 30 are arranged on the articulated robot 60, and the articulated robot 60 switches between the heater units 30 that irradiate infrared rays onto the molded product M for each molded product M held in the molded product holding section 5, thereby preventing the heater units 30 from being used continuously for long periods of time. This allows for a period during which infrared rays are not irradiated from each heater unit 30 when the deburring device 1 is continuously performing thread burr removal work, and a cooling period for the infrared lamp heater 40 can be provided. As a result, continuous use of the infrared lamp heater 40 can be prevented, and the durability of the infrared lamp heater 40, i.e., the durability of the heater units 30, can be improved.

The deburring device 1 according to embodiment 3 also includes a heater replacement device 70 that replaces the heater unit 30 supported by the articulated robot 60. Therefore, if a heater unit 30 fails, the failed heater unit 30 can be replaced with a spare heater unit 35. Therefore, even if a heater unit 30 supported by the articulated robot 60 fails, the replacement spare heater unit 35 can be used to continue removing thread burrs from the molded product M. This prevents interruptions to the molding of the molded product M due to a heater unit 30 failure when molding the molded product M using the injection molding machine 100. As a result, the time required for molding the molded product M can be prevented from increasing.

[Modification]
In the deburring devices 1 according to the first to third embodiments described above, the heater unit 30 includes three infrared lamp heaters 40, but the heater unit 30 may include a number of infrared lamp heaters 40 other than three. The number of infrared lamp heaters 40 included in one heater unit 30 does not matter as long as the heater unit 30 can melt and remove burrs that occur on the molded product M with infrared rays irradiated from the infrared lamp heaters 40.

In addition, in the deburring device 1 according to the third embodiment described above, two heater units 30 are arranged on the articulated robot 60, but the number of heater units 30 arranged on the articulated robot 60 may be more than two, and three or more heater units 30 may be arranged. By arranging multiple heater units 30 on the articulated robot 60 and switching the heater unit 30 that irradiates infrared rays onto the molded product M for each molded product M, the durability of the heater units 30 can be improved.

In addition, in the deburring device 1 according to the third embodiment described above, a vertical articulated robot is used as the articulated robot 60, but the articulated robot 60 may be a robot other than a vertical articulated robot. The articulated robot 60 may be, for example, a SCARA robot, i.e., a horizontal articulated robot. The form of the articulated robot 60 is not important as long as it is configured to rotate the heater unit 30 supported by the articulated robot 60 around the molded product M held by the molded product holding section 5.

1...Deburring device, 3...Base stand, 5...Molded product holding section, 10...Orbiting mechanism, 11...Rail, 12...Retraction section, 20...Orbiting heater device, 21...Main body, 22...Grip, 25...Traveling unit, 26...Wheels, 30...Heater unit, 31...Lamp case, 32...Irradiation section, 35...Auxiliary heater unit, 40...Infrared lamp heater, 41...Carbonaceous heating element, 42...Lead wire connection section, 43...Slit, 44...Lead wire, 45...Gas Lath tube, 50...drive motor, 60...articulated robot, 65...hand unit, 70...heater exchange device, 100...injection molding machine, 101...injection device, 102...heating barrel, 103...nozzle, 110...mold clamping device, 111...fixed die, 112...movable die, 115...mold, 116...fixed die, 117...movable die, 120...removal device, 130...movable robot, 135...chuck, 140...transport device, 200...control device, M...molded product

Claims (6)

a heater unit having an infrared lamp heater that irradiates infrared rays;
a molded product holding section that positions the molded product and holds the molded product;
a rotation mechanism that rotates the heater unit around the molded product held by the molded product holding unit in a direction that irradiates the infrared rays onto the molded product held by the molded product holding unit;
Equipped with
the heater unit includes a plurality of the infrared lamp heaters and a lamp case in which the plurality of infrared lamp heaters are disposed,
the plurality of infrared lamp heaters are formed to be curved in an arc shape, and when viewed in the axial direction of the arc shape in the lamp case, the plurality of infrared lamp heaters are overlapped and arranged such that the directions of the curves are the same;
the lamp case has an irradiation portion formed by opening a portion located near a curved, arc-shaped portion of the infrared lamp heater,
The deburring device is characterized in that the heater unit is arranged so that the irradiation part faces in the direction in which the molded product holding part is arranged . The orbiting mechanism includes:
a rail disposed around the molded product holding portion;
a traveling unit that supports the heater unit and travels on the rail;
The deburring device according to claim 1 , further comprising: The deburring device described in claim 2, wherein the traveling unit has a drive source for self-propelled movement on the rail. the rotating mechanism has an articulated robot that supports the heater unit and moves the heater unit,
The deburring device according to claim 1 , wherein the articulated robot moves the heater unit around the molded product held by the molded product holding portion. a plurality of the heater units are arranged on the articulated robot;
The deburring device according to claim 4 , wherein the articulated robot switches the heater unit that irradiates the molded product with the infrared rays for each molded product held in the molded product holding section. The deburring device according to claim 4 or 5, further comprising a heater replacement device that replaces the heater unit supported by the articulated robot.