JP4952097B2 - Follow plate with heating function, pumping device and pumping method of stored liquid - Google Patents

Description

  The present invention pumps out high-viscosity liquids such as pasty or cream-like food materials, sealing agents, vibration-damping agents, ointments, putty agents, etc. stored in containers such as drums and pail cans. The present invention relates to a pumping device that can be used, a follow plate with a heating function that can be used in such a pumping device, and a method for pumping stored liquid.

  An example of the coating apparatus 1 provided with the conventional drawing-out apparatus 5 is demonstrated with reference to FIG. However, in FIG. 9, the discharger 4 is exaggerated. The coating apparatus 1 pumps the stored liquid 3 stored in a container 2 such as a pail can with a pumping apparatus 5 and connects the pumped stored liquid 3 to an outlet 5 a of the pumping apparatus 5. The liquid can be supplied to the discharger 4 through the transfer pipe 6, and the supplied stored liquid 3 can be discharged from the discharger 4 and applied to various members.

  Examples of the storage liquid 3 include high-viscosity liquids such as a sealant and a vibration damping agent, and many of these high-viscosity liquids increase in viscosity when the temperature decreases. Thus, when the viscosity of the stored liquid 3 increases, the pressure loss in the transfer pipe 6 increases and the discharge capacity of the pump 5b provided in the pumping device 5 also decreases. Thus, the stored liquid 3 may not be supplied at a predetermined flow rate. That is, when the room temperature of the working chamber in which the coating apparatus 1 is installed is lowered, the stored liquid 3 may not be supplied to the discharge device 4 at a predetermined flow rate. In such a case, the discharge device 4 The stored liquid 3 cannot be discharged at a specified flow rate.

  Therefore, in order to be able to supply the storage liquid 3 at a predetermined flow rate to the discharger 4 even if the room temperature of the working chamber is lowered, for example, the diameter of the transfer pipe 6 is increased to increase the pressure in the transfer pipe 6. It is conceivable to reduce the loss.

  It is also conceivable to lower the viscosity of the stored liquid 3 by raising the room temperature of the entire working chamber in which the coating apparatus 1 is installed. Further, it is conceivable to increase the capacity of the pump 5b.

  However, in the method of reducing the pressure loss in the transfer pipe 6 by increasing the pipe diameter of the transfer pipe 6, the installation space increases as the pipe diameter increases, and the installation cost also increases. In addition, depending on the type of the storage liquid 3, the storage liquid 3 may adhere to the inner surface of the transfer pipe 6. In this case, the transfer pipe 6 needs to be replaced periodically. The cost of this also increases.

  Moreover, it is uneconomic to heat the stored liquid 3 by raising the room temperature of the entire working chamber in which the coating apparatus 1 is installed. Then, it is conceivable to install a heat-retaining greenhouse and heat-retain the stored liquid 3 in the container 2 with the heat-retaining room, but an installation space for installing the heat-retaining greenhouse is required, and the installation cost It also takes. Further, it takes time and labor to heat the stored liquid 3.

  Further, in the method of increasing the capacity of the pump 5b, the initial cost increases as the capacity increases, and the running cost also increases accordingly.

  The present invention has been made to solve the above-described problems, and the cost for heating the stored liquid is low, no space for heating is required, and the stored liquid is compared. It is an object of the present invention to provide a follow plate with a heating function, a pumping device, and a method for pumping stored liquid that can be heated in a short time and allowed to flow out from a pump at a predetermined flow rate.

A follow plate with a heating function according to the invention of claim 1 is provided at a suction port portion of a pump for pumping and storing a stored liquid stored in a container, and the follow plate used as a lid of the container, and the follow plate A heating part for heating the stored liquid in the container provided on the plate, the follow plate has a mounting hole for detachably sealingly fitting and coupling with the suction port part of the pump, The inner peripheral surface of the mounting hole is formed of synthetic resin or rubber .

  According to the follow plate with a heating function according to the invention of claim 1, the heating unit is provided in the follow plate, and this plate is disposed on the liquid surface of the stored liquid in the container. The stored liquid can be sequentially heated from the liquid level toward the bottom of the container. In this way, the liquid level of the stored liquid and the portion close thereto can be heated in a short time, so that the stored liquid close to the heated liquid level can be sucked in by the pump, and thus this heated in a short time. The stored liquid can be sent out, for example, through a transfer pipe connected to the outlet of the pump.

In addition, in this way, the stored liquid can be heated by the heating unit and the viscosity of the stored liquid can be lowered before the stored liquid in the container is sent out from the pump, so that the stored liquid flows out at a predetermined flow rate. It is possible to reduce the pressure loss in the storage liquid transfer pipe. Therefore, for example, even if the room temperature decreases, the stored liquid can be discharged from the pump at a relatively low pressure and at a predetermined flow rate.
And according to this follow plate with a heating function, when the suction port part of the pump is mounted in the mounting hole, the inner peripheral surface of the mounting hole is elastically expanded in diameter and fitted with the suction port part of the pump. It can be detachably coupled. And since the fitting part is sealed, external air does not flow into a container through a fitting part, Therefore, it can pump out so that gas may not mix in a stored liquid. Since the plate can be inserted into the container in advance and the stored liquid can be heated before mounting the pump in the mounting hole of the follow plate, this heating is immediately performed when the stored liquid is pumped from the container. The stored liquid can be pumped out.

The follow plate with a heating function according to a second aspect of the present invention is the follow plate according to the first aspect, wherein the inner peripheral surface of the mounting hole has a short cylindrical shape, a tapered shape that extends toward the upper surface side of the follow plate, or an upper opening. One or more grooves extending from the edge to the front of the lower opening edge are formed.

According to the follow plate with a heating function according to the invention of claim 2 , the suction port portion of the pump mounted in the mounting hole is made difficult to come off from the mounting hole by making the inner peripheral surface of the mounting hole into a short cylindrical shape. Can do. And by making the inner peripheral surface of the mounting hole into a tapered shape, when mounting the suction port portion of the pump to the mounting hole, make sure that no gas exists between the lower end of the suction port portion and the liquid surface. The suction port portion can be mounted in the mounting hole. In addition, in the case where one or two or more grooves extending from the upper opening edge to the front of the lower opening edge are formed on the inner peripheral surface of the mounting hole, heating is performed so that the lower portion of the groove is immersed in the stored liquid. If a follow plate with a function is placed on the liquid level of the stored liquid and the suction port of the pump is installed in the mounting hole in this state, there should be no gas between the lower end of the suction port and the liquid level. The suction port can be attached.

A follow plate with a heating function according to a third aspect of the invention is characterized in that in the first or second aspect of the invention, the follower plate is provided with a heat insulating portion disposed at a position covering the surface of the heating portion facing the side opposite to the stored liquid. It is what.

According to the follow plate with a heating function according to the third aspect of the invention, the surface of the heating part facing the side opposite to the stored liquid is covered with the heat insulating part, so that the stored liquid can be efficiently heated. Therefore, when the stored liquid is heated to a predetermined temperature, the local temperature rise of the stored liquid can be suppressed, and the temperature of the heating unit can be lowered. Accordingly, for example, when the stored liquid is thermosetting, the thermosetting of the stored liquid can be prevented or suppressed. And since thermosetting can be prevented etc., a stored liquid can be smoothly sent through a transfer pipe etc.

The follow plate with a heating function according to the invention of claim 4 is characterized in that, in the invention of claim 3 , the heat insulating portion is the follow plate.

According to the follow plate with a heating function according to the invention of claim 4 , since the follow plate itself functions as a heat insulating portion, the number of parts can be reduced and it is economical.

A follow plate with a heating function according to a fifth aspect of the invention is characterized in that, in any one of the first to fourth aspects of the invention, a temperature detection unit for detecting a temperature corresponding to the heating unit is provided.

According to the follow plate with a heating function according to the invention of claim 5 , when the plate is disposed on the liquid surface of the stored liquid in the container and the stored liquid is heated by the heating section, the temperature detecting section corresponds to the heating section. Temperature can be detected. Therefore, for example, the operator can manually adjust the temperature of the stored liquid to a predetermined temperature by operating the heating unit while visually observing the detected temperature, or can be controlled automatically. it can.

A follow plate with a heating function according to a sixth aspect of the present invention is the follower plate according to the fifth aspect , wherein the temperature of the stored liquid in the container or the outflow from the pump is based on the detected temperature detected by the temperature detecting section. And a temperature control unit for controlling the liquid temperature of the stored liquid.

According to the follow plate with a heating function according to the invention of claim 6 , the temperature control unit is configured to control the temperature of the stored liquid in the container or the stored liquid flowing out from the pump based on the detected temperature detected by the temperature detecting unit. The heating unit can be controlled so that the liquid temperature becomes a predetermined temperature. In other words, for example, the relationship between the detected temperature detected by the temperature detection unit and the temperature of the stored liquid in the container or the temperature of the stored liquid flowing out from the pump is obtained in advance by experiments to store in the container. The stored liquid can be appropriately heated so that the liquid temperature of the liquid or the liquid temperature of the stored liquid flowing out from the pump does not rise above the predetermined liquid temperature. Therefore, the stored liquid (for example, thermosetting stored liquid) can be heated so as not to change the quality (thermosetting).

A pumping device according to a seventh aspect of the present invention is the pumping device for pumping out the stored liquid stored in the container by a pump and including the follower plate with a heating function according to any one of the first to sixth aspects. It is characterized by this.

According to the pumping device of the seventh aspect of the invention, the action of each follow plate with a heating function can be achieved as described above. Therefore, the stored liquid can be reliably discharged from the pump outlet at a predetermined flow rate.

According to an eighth aspect of the present invention, there is provided a pumping device according to the seventh aspect , wherein the pump is a uniaxial eccentric screw pump.

According to the pumping device of the eighth aspect of the invention, since the pump itself is also a constant flow pump, the stored liquid in the container can be pumped out at a predetermined flow rate with high accuracy.

In the method for pumping the stored liquid according to the invention of claim 9 , a follow plate with a heating function is provided on the liquid level of the stored liquid stored in the container, and the follow plate with a heating function is formed on the follow plate with the heating function. A method for pumping a stored liquid, wherein a suction port portion of a pump is mounted in the mounting hole, and the stored liquid is pumped up and discharged by the pump, wherein the pump is not mounted in the mounting hole. A follow plate with a function is disposed on the liquid surface of the stored liquid, the stored liquid in the container is heated by the heating unit, and then the mounting of the follow plate with a heating function disposed on the liquid surface is performed. A suction port portion of the pump is attached to the hole.

According to the method for pumping the stored liquid according to the ninth aspect of the invention, first, a follow plate with a heating function in which the pump is not mounted in the mounting hole is inserted into the container and disposed on the liquid level of the stored liquid. And the stored liquid in a container is heated with a heating part. Thereafter, the suction port portion of the pump is mounted in the mounting hole of the follow plate with a heating function arranged on the liquid surface, and the heated stored liquid can be pumped and discharged by the pump.

  According to the follow plate with a heating function according to the first aspect of the present invention, the stored liquid stored in the container is directly heated by the heating unit provided in the follow plate, and the heated stored liquid is caused to flow out of the pump. Since it is configured, the cost of the equipment for heating the stored liquid and the cost of heating energy are low, no space for heating is required, and the stored liquid is heated in a relatively short time. The liquid can be discharged at a predetermined flow rate.

  That is, unlike the prior art, it is not necessary to increase the diameter of the transfer pipe in order to reduce the pressure loss in the transfer pipe, so the installation space for the transfer pipe does not increase and the installation cost does not increase. Further, for example, even when the transfer pipe is periodically replaced because the stored liquid adheres to the inner surface of the transfer pipe, the cost for replacing the transfer pipe does not increase.

  Further, it is not necessary to raise the room temperature of the entire working chamber in which the coating apparatus is installed, and it is economical because it is only necessary to heat the stored liquid in the container. And since there is no need to install a heat-retaining greenhouse, an installation space for the heat-retaining greenhouse is not required, and installation costs are not incurred. Furthermore, it does not take time and labor to heat the stored liquid.

  Furthermore, since it is not necessary to increase the capacity of the pump, the initial cost does not increase and the running cost does not increase.

According to the pumping device according to the invention of claim 7 , as described above, the stored liquid in the container can be heated and the viscosity can be lowered by the follow plate with a heating function. Therefore, the stored liquid can be reliably discharged at a predetermined flow rate from the pump outlet.

According to the method for pumping the stored liquid according to the invention of claim 9 , before the pump is mounted on the follow plate with a heating function, this plate can be inserted into the container in advance to heat the stored liquid. When the stored liquid is pumped out of the container, the heated stored liquid can be immediately pumped out.

  1 to FIG. 1 show an embodiment of a follow plate with a heating function according to the present invention (hereinafter sometimes simply referred to as “plate with a heating function”), a pumping device, and a method for pumping stored liquid. This will be described with reference to FIG. As shown in FIGS. 4A, 4 </ b> B, and 4 </ b> C, the pumping device 11 includes a plate 12 with a heating function and a pump 14. The pump 14 is capable of pumping the stored liquid 3 stored in a container 2 such as a drum can or a pail can and let it flow out from the outlet 15 at a predetermined flow rate.

  As shown in FIG. 5, the pumping device 11 can be applied to a coating device 10, a filling device, and the like. The coating apparatus 10 supplies the stored liquid 3 pumped by the pumping apparatus 11 to the discharge machine 4 through the transfer pipe 61 connected to the outlet 15 at a predetermined flow rate. The stored liquid 3 can be discharged at a specified flow rate and applied to various members. However, in FIG. 5, the discharger 4 is exaggerated.

  The storage liquid 3 is a high-viscosity liquid such as a paste-like or cream-like food material, a sealing agent, a vibration damping agent, an ointment, or a putty agent. Of course, a low-viscosity liquid having a viscosity close to that of water can also be used, and the liquid can be heated to a desired temperature as necessary. The container 2 has, for example, a short cylindrical shape that opens upward and has a bottom.

  FIG. 4A is a side view of the pumping device 11. A plate 12 with a heating function is inserted into the container 2, and the pump 12 is not attached to the plate 12 with a heating function. The state before pumping out the stored liquid 3 is shown. FIG. 4B is a front view of the pumping device 11, in which the pump 14 is mounted on the heating function plate 12 inserted in the container 2, and the stored liquid 3 in the container 2 is pumped out. Is shown. FIG. 4C is a perspective view showing the constant load spring 16 provided in the pumping device 11.

  As shown in FIGS. 4A and 4B, the pumping device 11 includes a pump device 17 including a pump 14, an elevating mechanism unit 18 for elevating and lowering the pump device 17, a constant load mechanism unit 19, and the like. It has.

  As shown in FIGS. 4A and 4B, the pump device 17 can suck the stored liquid 3 in the container 2 from the suction port 14a of the pump 14 and can flow out from the outlet 15 at a predetermined flow rate. It is. A transfer pipe 61 shown in FIG. 5 is connected to the outlet 15. The pump 14 has a heating function plate 12 detachably attached to a lower end portion thereof, and a pump casing 20 is attached to an upper end portion thereof. A reduction gear 22 and an electric motor 23 are attached to the upper end portion of the pump casing 20 via a bracket 21.

  As shown in FIG. 3, the pump 14 is a vertical uniaxial eccentric screw pump, and includes a rotor 24 and a stator 25. The rotor 24 has a male screw shape and is rotatably mounted on a stator 25 having a female screw-shaped inner hole 25a. The upper end of the rotor 24 is connected to the rotating shaft of the speed reducer 22 via a connecting rod 26. The upper and lower ends of the connecting rod 26 are connected to the rotation shaft of the speed reducer 22 and the rotor 24 through universal joints 27, respectively.

  As shown in FIGS. 4A and 4B, the elevating mechanism unit 18 is for elevating the pump device 17 and includes a pair of rails 28 and 28 arranged in the vertical direction. Yes. With respect to the pair of rails 28, 28, the pump device 17 is provided so as to be movable up and down via a slide plate 29, a constant load mechanism 19, a support 30, and a bracket 21. The pair of rails 28, 28 are provided on the columns 31, 31, respectively, and a pedestal 32 is provided at the lower end of the pair of columns 31, 31. The pedestal 32 is provided with casters 33,.

  Further, as shown in FIG. 4A, the slide plate 29 to which the pump device 17 is attached is connected to the chain 35 via the connecting tool 34. The chain 35 is hung on two sprockets 36 and 36 and an elevating handle 37 which are attached to the upper and lower positions. The operator can move the pump handle 17 up and down along the rails 28 and 28 by rotating the lift handle 37. Further, as will be described later, the pump device 17 itself can be lowered by the suction force of the pump device 17. The upper and lower sprockets 36 and 36 are attached to an upper plate 38 and a lower plate 39 provided at the upper and lower ends of the support columns 31 and 31, respectively. The elevating handle 37 is attached to the reinforcing column 40.

  As shown in FIG. 4A, the constant load mechanism 19 allows the pump device 17 to be lifted and lowered by rotating the lifting handle 37 with a relatively small force, as well as the pump. This is to allow the pump device 17 to automatically follow the liquid level and to be lowered by the suction force of the pump 14 when the stored liquid 3 in the container 2 is pumped by operating 14.

  The constant load mechanism 19 has a constant load spring 16, and the constant load spring 16 is accommodated in a housing 41. The housing 41 is attached to the slide plate 29, and the support portion 30 is provided on the housing 41. A bracket (pump device 17) 21 is attached to the support portion 30.

  As shown in FIGS. 4A and 4C, the constant load spring 16 is wound around and attached to the upper and lower drum shafts 42, 42, and the upper and lower drum shafts 42. , 42 are rotatably provided on the housing 41. A drum 43 is fixed to the upper drum shaft 42, and a balance wire 44 is wound around the drum 43, and one end of the balance wire 44 is coupled to the drum 43. The balance wire 44 is hung on a pulley 45 provided on the upper plate 38, and the other end is coupled to the upper plate 38.

  Next, with reference to FIGS. 1-3, the plate 12 with a heating function is demonstrated. As shown in FIGS. 1A and 1B, the heating function plate 12 is formed as a substantially disk-like body having a constant thickness as a whole, and includes a follow plate 62 and a heating unit 63. I have.

  The follow plate 62 is a material that allows the plate 12 with a heating function to float on the stored liquid 3, and is made of, for example, a closed cell of foamed synthetic resin such as foamed polyethylene or foamed synthetic rubber.

  The follow plate 62 has flexibility, and has a diameter slightly larger than the inner diameter of the container 2. Therefore, when the plate 12 with a heating function is press-fitted into the container 2 and mounted, the plate 12 with the heating function is elastically deformed, and a contact portion between the outer peripheral portion 12a and the inner peripheral surface 2a of the container 2 is formed. Sealed.

  Further, as shown in FIGS. 1A and 1B, the follow plate 62 has an annular recess 62a formed on the lower surface, and a heating portion 63 is attached to the annular recess 62a with, for example, a bolt (not shown). ing. And in the state which attached the heating part 63 in this way, the lower surface 12b of the plate 12 with a heating function is formed as a flat surface, and this heating part 63 forms a part of bottom face of the plate 12 with a heating function. .

  As shown in FIGS. 1A and 1B, the heating unit 63 has a waterproof structure, and is a resistance heating type electric heater, for example, and is an annular plate-like body. A temperature detection unit 64 such as a thermocouple is provided on the upper surface of the heating unit 63. The temperature detection unit 64 can detect the temperature of the heating unit 63 or a temperature corresponding thereto. The heating unit 63 and the temperature detection unit 64 are electrically connected to the temperature control unit 66 through a connection electric wire 65.

  The temperature control unit 66 controls the heating unit 63 so that, for example, the stored liquid 3 in the container 2 and the stored liquid 3 flowing out from the outlet 15 of the pump 14 have a preset liquid temperature. As described above, the temperature control unit 66 controls the heating unit 63 by, for example, changing the voltage value applied to the heating unit 63 or turning on / off the applied voltage. The liquid temperature set in advance in the temperature control unit 66 is set according to properties such as the specific heat, viscosity, and thermal conductivity of the stored liquid 3. In this way, the reservoir 3 in the container 2 is heated by the heating unit 63 because the viscosity is lowered by heating the highly viscous reservoir liquid 3 at a low temperature, and the reservoir liquid 3 is sucked and discharged by the pump 14. This is to make it easier to pass through the transfer pipe 61. The liquid temperature is a temperature that does not affect the quality of the stored liquid 3.

  In addition, since the follow plate 62 is formed of foamed synthetic resin or foamed synthetic rubber, it has a function as a heat insulating part, thereby suppressing the heat generated by the heating part 63 from radiating into the outside air. The stored liquid 3 in the container 2 can be efficiently heated.

  Further, as shown in FIGS. 1A and 1B, the plate 12 with a heating function has a mounting hole 47 formed in the center thereof, and this mounting hole 47 is formed at the tip of the pump 14. The suction port portion 14b is detachably mounted.

  As shown in FIGS. 1A, 1 </ b> B, and 1 </ b> C, the mounting hole 47 is formed in the liquid surface of the stored liquid 3 that is stored in the container 2 by inserting the plate 12 with a heating function into the container 2. When arranged, the air existing between the lower surface 12b of the heating function-equipped plate 12 and the liquid level can be discharged through the mounting hole 47 into the outside air. The mounting hole 47 is a tapered through hole that has a circular cross-sectional shape and expands toward the upper surface side of the plate 12 with a heating function. The shape of the mounting hole 47 is a shape corresponding to the suction port portion 14 b formed at the distal end portion of the pump 14.

  Thus, the inner peripheral surface of the mounting hole 47 has a tapered shape corresponding to the suction port portion 14b of the pump 14, and the follow plate 62 made of foamed synthetic resin has flexibility, so that When the suction port portion 14b is mounted in the mounting hole 47, the mounting hole 47 is fitted to the suction port portion 14b so as to be detachable and the fitting portion is sealed.

  However, as shown in FIG. 2A, in order to allow the suction port portion 14b of the pump 14 to be mounted to the mounting hole 47 at a predetermined depth, a hook-shaped portion 14c is provided on the suction port portion 14b. Is provided.

  Next, as shown in FIG. 5, the transfer pipe 61, the pressure adjustment valve 67, and the discharge device 4 that are sequentially connected to the outlet 15 of the pump device 17 will be described. The transfer pipe 61 includes a metal pipe and first and second flexible pipes connected to both ends of the metal pipe. The discharger 4 is attached to, for example, an arm tip of a robot (not shown), and can apply the stored liquid 3 to various members.

  The pressure adjustment valve 67 adjusts the high-pressure stored liquid 3 supplied from the pump 14 via the transfer pipe 61 to a predetermined low pressure and supplies the adjusted low-pressure liquid 3 to the discharge device 4.

  As shown in FIG. 5, the discharger 4 includes a coating pump (uniaxial eccentric screw pump) 80 and an electric motor (servo motor) 81 for driving the coating pump 80. By operating this, the application pump 80 can suck the stored liquid 3 supplied from the outlet of the pressure regulating valve 67 through the suction port and discharge it from the discharge port 4b by a predetermined amount at a specified flow rate.

  Next, as shown in FIGS. 1 to 5, a procedure for discharging the stored liquid 3 in the container 2 from the discharge device 4 using the coating device 10 to which the pumping device 11 is applied will be described. First, as shown in FIG. 1A, the operator does not attach the pump 14 to the attachment hole 47 of the heating function plate 12 at the stage before the container 2 is attached to the pumping device 11, for example. Then, the plate 12 with a heating function is inserted into the container 2 and pushed into the container 2. At this time, air existing between the lower surface 12b of the heating function-equipped plate 12 and the liquid level of the stored liquid 3 in the container 2 can be exhausted into the outside air through the mounting hole 47. Thus, as shown in FIG.1 (c), the plate 12 with a heating function is arrange | positioned on the liquid level in the state in which there is no air between the lower surface 12b and a liquid level.

  Next, the heating unit 63 is operated to heat the stored liquid 3 in the container 2. Thus, by heating the stored liquid 3 in the container 2, the viscosity of the highly viscous stored liquid 3 can be lowered at low temperatures, and the stored liquid 3 can be easily sucked and discharged by the pump 14. . Furthermore, the stored liquid 3 discharged from the pump 14 can be easily passed through the transfer pipe 61 and can be supplied to the discharger 4 at a predetermined flow rate.

  Moreover, since the plate 12 with a heating function shown in FIG.1 and FIG.2 is formed with the material which floats in the stored liquid 3, for example, a closed-cell body of foaming synthetic resin or foaming synthetic rubber, it can float in the storing liquid 3. FIG. . Therefore, when the plate 12 with a heating function is arranged on the liquid surface of the stored liquid 3 in the container 2 and the stored liquid 3 in the container 2 is heated by the heating unit 63, the plate 12 with a heating function is stored in the stored liquid 3. There is no sinking inside. Therefore, if the plate 12 with a heating function is arranged on the liquid surface of the stored liquid 3 in the container 2, the pump 14 is mounted in the mounting hole 47 when necessary and heated to a predetermined liquid temperature in the container 2. The stored liquid 3 can be pumped out.

  Next, as shown in FIGS. 4A and 4B, the operator attaches and fixes the container 2 to which the plate 12 with the heating function is attached to a predetermined position of the base 32 of the pumping device 11. . Then, as shown in FIG. 2A, the operator operates the elevating mechanism 18 to lower the pump device 17 and mount the suction port portion 14 b of the pump 14 in the mounting hole 47.

  Next, the pump device 17 is driven. As a result, the stored liquid 3 whose viscosity has been lowered by heating in the container 2 shown in FIG. 2A can be sucked from the suction port 14 a of the pump 14 and allowed to flow out from the outlet 15. At this time, since air does not exist on the lower surface 12b side of the plate 12 with a heating function, air is not contained in the stored liquid 3 sucked into the pump 14, and therefore the stored liquid 3 is pumped at a predetermined flow rate. It is possible to reliably flow out from the outlet 15.

  The heated stored liquid 3 flowing out from the outlet 15 of the pump 14 is supplied to the discharger 4 through the transfer pipe 61. The stored liquid 3 supplied to the discharger 4 is adjusted to a predetermined pressure by a pressure adjustment valve 67. The discharger 4 can discharge the heated stored liquid 3 at a specified flow rate and apply it to various members.

  In addition, when the stored liquid 3 is being pumped up by the pump 14, the inside of the container 2 becomes a negative pressure, and the plate 12 with a heating function and the pump device 17 are automatically lowered as the stored liquid 3 decreases. And when the plate 12 with a heating function descend | falls, since the contact part of the outer peripheral part 12a of the plate 12 and the internal peripheral surface 2a of the container 2 is sealed, the stored liquid 3 in the container 2 is from the contact part. Leakage can be prevented.

  Next, as shown in FIG. 2 (b), when the stored liquid 3 in the container 2 is reduced and the liquid volume reaches a predetermined liquid level before it becomes impossible to pump the stored liquid 3 at a predetermined flow rate, The used container 2 is replaced with another container 2 in which a specified amount of the stored liquid 3 is stored.

  That is, as shown in FIG. 2B, the operator operates the lifting mechanism 18 to raise the pump device 17 and remove the suction port 14 b of the pump 14 from the mounting hole 47 of the plate 12 with a heating function. . Then, the used container 2 is removed from the pumping device 11, and the new container 2 in which the specified amount of the stored liquid 3 is stored is fixed to the base 32 of the pumping device 11. As shown in FIGS. 1 (a), (b), and (c), the new container 2 is preliminarily equipped with a plate 12 with a heating function, and the stored liquid 3 in the container 2 is heated by a heating unit 63. Is heated to a predetermined liquid temperature.

  Next, as shown in FIG. 2A, by performing the same procedure as described above, the pump 14 is mounted in the mounting hole 47 of the heating function plate 12, and the stored liquid 3 in the container 2 is pumped. And can be discharged from the outlet 15 at a predetermined flow rate and discharged from the discharger 4.

  Next, the effect | action of the plate 12 with a heating function shown in FIGS. 1-5 is demonstrated. As shown in FIGS. 1A, 1B, and 1C, according to the plate 12 with the heating function, the heating unit 63 is provided on the lower surface 12b of the plate 62, and the plate 62 is stored in the container 2. Since the liquid 3 is disposed on the liquid level, the stored liquid 3 in the container 2 can be sequentially heated from the liquid level toward the bottom of the container 2 by the heating unit 63. Thus, since the liquid level of the stored liquid 3 and a portion close thereto can be heated in a short time, the stored liquid 3 close to the heated liquid surface can be sucked in by the pump 14, thereby The heated stored liquid 3 can be sent out through, for example, a transfer pipe 61 connected to the outlet 15 of the pump 14.

  In addition, at this stage before the stored liquid 3 in the container 2 is sent out from the pump 14, the stored liquid 3 in the container 2 is heated in advance by the heating unit 63 to reduce the viscosity of the stored liquid 3. Therefore, when the stored liquid 3 is pumped out of the container 2, the heated stored liquid 3 can be immediately pumped out and the pressure loss in the transfer pipe 61 of the stored liquid 3 can be reduced. . Therefore, for example, even if the room temperature decreases, the stored liquid 3 can be discharged from the pump 14 at a relatively low pressure and at a predetermined flow rate.

  And according to this plate 12 with a heating function, as shown to Fig.2 (a), with the heating part 63 provided in the plate 62, the stored liquid 3 stored in the container 2 is heated directly, and this heating is carried out. Since the stored liquid 3 is caused to flow out from the pump 14, the cost of equipment for heating the stored liquid 3 and the cost of heating energy are low, and no space for heating is required. The stored liquid 3 can be heated at a predetermined flow rate by heating in a relatively short time.

  That is, unlike the conventional case, there is no need to increase the diameter of the transfer pipe 61 to reduce the pressure loss, so that the installation space for the transfer pipe 61 does not increase and the installation cost does not increase. For example, even when the transfer pipe 61 is periodically replaced, the cost for replacing the transfer pipe 61 does not increase.

  Further, it is not necessary to raise the room temperature of the entire working chamber in which the coating apparatus 10 is installed, and it is economical because it is only necessary to heat the stored liquid 3 in the container 2. And since there is no need to install a heat-retaining greenhouse, an installation space for the heat-retaining greenhouse is not required, and installation costs are not incurred. Furthermore, the labor and time for heating the stored liquid 3 are not required.

  Furthermore, since it is not necessary to increase the capacity of the pump 14, the initial cost does not increase and the running cost does not increase.

  1 and 2, when the suction port portion 14b of the pump 14 is mounted in the mounting hole 47, the inner peripheral surface of the mounting hole 47 is elastically expanded in diameter, and the pump 14 Can be detachably coupled to the suction port portion 14b. And since the fitting part is sealed, external air does not flow into the container 2 through the fitting part, and therefore, the air can be pumped out so as not to be mixed into the stored liquid 3. Since the plate 12 can be inserted into the container 2 in advance and the stored liquid 3 can be heated before mounting the pump 14 in the mounting hole 47 of the plate 12 with a heating function, the stored liquid 3 is stored in the container 2. When the water is pumped out, the heated storage liquid 3 can be immediately pumped out.

And according to this plate 12 with a heating function, as shown to Fig.1 (a), (b), (c), the air by the side of the lower surface 12b of the plate 12 with a heating function is passed through the attachment hole 47, and it is in external air. The plate 12 with a heating function can be easily disposed on the liquid surface in a state where air can be discharged and no air exists on the lower surface 12b side of the plate 12. And since the operator can confirm visually that all the air by the side of the lower surface 12b of the plate 12 is discharged | emitted reliably from the mounting hole 47, in the stored liquid 3 suck | inhaled by the pump 14 It is possible to reliably prevent air from being contained, and to ensure that the stored liquid 3 flows out from the outlet 15 of the pump 14 at a predetermined flow rate.
Moreover, as shown to Fig.2 (a), since the surface which goes to the opposite side to the stored liquid 3 of the heating part 63 is covered with the follow plate (heat insulation part) 62, the stored liquid 3 can be heated efficiently. it can. Therefore, in order to heat the stored liquid 3 to a predetermined temperature, the amount of heat generated from the heating unit 63 is relatively small. For example, when the stored liquid 3 is thermosetting, the thermosetting of the stored liquid 3 is prevented or Can be suppressed. And since thermosetting can be prevented etc., the stored liquid 3 can be smoothly passed through the transfer pipe 61 etc., and can be supplied to the discharge machine 4. FIG. Further, since the follow plate 62 itself functions as a heat insulating portion, the number of parts can be reduced, which is economical.

  Furthermore, according to the plate 12 with a heating function shown in FIGS. 1 and 2, when the plate 12 is disposed on the liquid surface of the stored liquid 3 in the container 2 and the stored liquid 3 is heated by the heating unit 63, the temperature The detection unit 64 can detect the temperature corresponding to the heating unit 63. Then, the temperature control unit 66 controls the liquid temperature of the stored liquid 3 in the container 2 or the liquid temperature of the stored liquid 3 flowing out from the pump 14 based on the detected temperature detected by the temperature detecting unit 64. Can do.

  That is, for example, for each type of stored liquid 3 in the container 2, the detected temperature detected by the temperature detection unit 64, the liquid temperature of the stored liquid 3 in the container 2, or the liquid temperature of the stored liquid 3 flowing out from the pump 14. The temperature control unit 66 obtains the relationship between the temperature of the stored liquid 3 in the container 2 or the temperature of the stored liquid 3 flowing out of the pump 14 at a predetermined temperature. Can be controlled. In addition, the stored liquid 3 can be appropriately heated so as not to rise above a predetermined liquid temperature, thereby changing the quality of the stored liquid 3 (for example, thermosetting stored liquid 3) (thermosetting). It can be heated so that it does not.

  For example, the temperature control unit 66 controls the liquid temperature of the stored liquid 3 in the container 2 to be a predetermined temperature at a stage before the stored liquid 3 in the container 2 is pumped. It may be performed when the stored liquid 3 is heated and kept warm. The temperature control unit 66 controls the liquid temperature of the stored liquid 3 flowing out from the pump 14 to be a predetermined temperature when the pumping device 11 is pumping the stored liquid 3 in the container 2. It is good to do.

  And according to the drawing-out apparatus 11 shown to Fig.4 (a), (b), as above-mentioned, the stored liquid 3 in the container 2 is heated with each plate 12 with a heating function, and the viscosity of the stored liquid 3 is reduced. Therefore, the stored liquid 3 can be reliably discharged at a predetermined flow rate from the outlet 15 of the pump device 17.

  Further, as shown in FIG. 3, a uniaxial eccentric screw pump is adopted as the pump 14, and the pump 14 itself is also a constant flow rate pump, so that the stored liquid 3 in the container 2 is pumped out at a predetermined flow rate to flow out. In addition, the stored liquid 3 can be discharged from the discharge device 4 with a specified flow rate with high accuracy.

  However, although the plate 12 with a heating function shown in FIG. 1C of the above embodiment is formed of a closed cell body such as a material floating in the stored liquid 3, for example, a foamed synthetic resin, it includes closed cells instead. For example, it may be formed of a flexible synthetic resin. As shown in FIGS. 6A and 6B, the heating function-equipped plate 48 has a configuration in which an annular air chamber 49 is provided so as to float on the stored liquid 3. As shown in FIG. 6 (c), the heating function plate 48 has a recess 50 formed at the center, and the bottom wall of the recess 50 has a mounting hole 51 having a diameter smaller than the inner diameter of the recess 50. Is formed. The mounting hole 51 is detachably coupled with the suction port portion 14b of the pump 14, and the fitting portion is sealed. The inner edge portion 52 forming the mounting hole 51 is engaged with the flange-shaped portion 14c of the suction port portion 14b of the pump 14 on the upper surface thereof, thereby defining the insertion depth of the suction port portion 14b. it can. And the heating part 63 is attached to the lower surface of this plate 48 with a heating function similarly to the said embodiment. Except this, it is the same as the plate 12 with a heating function shown in FIGS. 1A, 1B, and 1C, and the description thereof is omitted.

  And as for the plate 12 with a heating function of the said embodiment, as shown to FIG. 1 (a), (b), (c), although the internal peripheral surface of the mounting hole 47 was made into the taper shape, it replaced with this. As shown in FIGS. 7A and 7B, the inner peripheral surface may be a short cylindrical shape, and one or more groove portions 53 may be formed on the inner peripheral surface. Each groove portion 53 extends from the upper opening edge of the mounting hole 55 to the front of the lower opening edge. Except this, it is the same as the plate 12 with a heating function shown in FIGS. 1A, 1B, and 1C, and the description thereof is omitted.

  According to the plate 54 with a heating function shown in FIGS. 7A and 7B, the plate with a heating function so that the lower side of each groove 53 is immersed in the stored liquid 3 as shown in FIG. 7A. As shown in FIG. 8, when the suction port portion 14b of the pump 14 is mounted in the mounting hole 55 in this state, the lower end of the suction port portion 14b, the liquid level, The suction port portion 14b of the pump 14 can be mounted in the mounting hole 55 in such a manner that no air exists between them. This is because when the lower end portion of the suction port portion 14 b comes into contact with the short cylindrical sealing portion 55 a formed in the lower portion of the mounting hole 55, both come into contact with the stored liquid 3. Since the groove 53 is provided in the mounting hole 55, the liquid level of the stored liquid 3 in the mounting hole 55 rises in the groove 53 when the suction port 14 b is mounted in the mounting hole 55. 3 can be prevented from overflowing to the upper surface of the plate 12 with a heating function.

  Further, the mounting hole 47 may be a short cylinder instead of a tapered shape as shown in FIG. By making the inner peripheral surface of the mounting hole 47 into a short cylindrical shape, the suction port portion of the pump 14 mounted in the mounting hole can be made difficult to come off from the mounting hole, and the sealing degree can be improved. When the mounting hole has a short cylindrical shape, the suction port portion has a short cylindrical shape corresponding to the mounting hole.

  And in the said embodiment, as shown to Fig.1 (a), although the follow plate 62 was formed with the material which has heat insulation, it was set as the heat insulation structure which coat | covers the upper surface of the heating part 63 with this follow plate 62. Instead of this, the follow plate 62 may be formed of a material other than the heat insulating material, and may have a heat insulating structure in which the upper surface of the heating unit 63 is covered with a separate heat insulating material.

  And in the said embodiment, as shown to Fig.1 (a), although the lower surface 12b of the plate 12 with a heating function was made into the flat surface, it replaces with this, but although not shown in a figure, it is a mounting hole from the outer peripheral part 12a. It is good also as an inclined surface which inclines concavely toward 47.

  Thus, by making the lower surface of the plate 12 with a heating function into an inclined surface inclined in a concave shape, the air on the lower surface side of the plate 12 is directed from the outer peripheral portion 12a toward the mounting hole 47 along the lower surface of the plate 12. The air that has moved can be reliably discharged from the mounting hole 47.

  Furthermore, in the said embodiment, as shown in FIG.1 (b), although the plate 12 with a heating function was made into the circular plate-shaped body as a whole, according to the shape of the internal peripheral surface 2a of the container 2, for example, an oval shape or It may be a polygonal plate.

  And in the said embodiment, as shown in FIG. 3, although the uniaxial eccentric screw pump was used as the pump 14, other than this, for example, you may use a rotary pump and a plunger pump.

  Moreover, in the said embodiment, as shown to Fig.1 (a), (b), (c), by forming the plate 12 with a heating function with flexible foam synthetic resin etc., the outer peripheral part 12a of the plate 12 and Although the contact portion with the inner peripheral surface 2a of the container 2 is sealed, it is replaced with an annular plate-like rubber ring (seal on the outer peripheral portion 12a of the plate 12 with a heating function. It is good also as a structure which provides the member and seals the clearance gap between the outer peripheral part 12a of the plate 12, and the internal peripheral surface 2a of the container 2 with this plate-shaped rubber ring. In this case, the diameter of the heating function plate 12 is made smaller than the inner diameter of the container 2, and the plate-like rubber ring is made slightly larger than the inner diameter of the container 2.

  And in the said embodiment, as shown to Fig.1 (a), (b), (c), it was set as the structure which seals the contact part of the outer peripheral part 12a of the plate 12, and the inner peripheral surface 2a of the container 2. As shown in FIG. However, instead of this, the outer peripheral portion 12a of the plate 12 may be configured to have a contact portion that can scrape off the stored liquid 3 adhering to the inner peripheral surface 2a of the container 2. Moreover, you may use the plate with a heating function that a clearance gap is formed between the outer peripheral part 12a of the plate 12, and the internal peripheral surface 2a of the container 2. FIG.

  Furthermore, in the said embodiment, as shown to Fig.4 (a), although the thing which an operator operates by hand as an example was mentioned as the raising / lowering mechanism part 18, other than this, for example, an electric motor, hydraulic type, pneumatic type You may make it raise / lower the pump apparatus 17 by the drive part.

  In the above embodiment, as shown in FIG. 1, the temperature control unit 66 is provided, but the temperature control unit 66 is omitted, and a temperature display for displaying the detected temperature detected by the temperature detection unit 64. A portion (not shown) may be provided. In this way, for example, the operator can manually adjust the liquid temperature of the stored liquid to a predetermined temperature by visually operating the detected temperature displayed on the temperature display unit and operating the heating unit.

  As described above, the follower plate with heating function, the pumping device, and the method for pumping the stored liquid according to the present invention are inexpensive for heating the stored liquid and do not require a space for heating. Moreover, it has an excellent effect of heating the stored liquid in a relatively short time and allowing it to flow out from the pump at a predetermined flow rate. Such a follow plate with heating function, a pumping device, and pumping of the stored liquid Suitable for applying to methods.

It is a figure for demonstrating the procedure which inserts in a container the follow plate with a heating function with which the drawing-out apparatus which concerns on the same embodiment is equipped, (a) is the state which inserts a follow plate with a heating function into a container and discharges air (B) is the top view, (c) is a longitudinal cross-sectional view which shows the state which makes a follow plate with a heating function contact the liquid level of the stored liquid in a container, and heats stored liquid. It is a figure for demonstrating the procedure which attaches and detaches a pump with respect to the follow plate with a heating function of the embodiment, (a) shows the state which mounted | wore the mounting hole of the follow plate with a heating function with the suction inlet part of the pump. (B) is a longitudinal sectional view showing a state in which the suction port of the pump is removed from the mounting hole. It is an expanded longitudinal cross-sectional view which shows the state which is pumping out, heating the stored liquid in a container using the pumping apparatus which concerns on the embodiment. The drawing apparatus which concerns on the embodiment is shown, (a) is the side view, (b) is the front view, (c) is a perspective view which shows the constant load spring provided in the drawing apparatus. It is a schematic front view which shows the coating device to which the drawing-out apparatus which concerns on the embodiment was applied. It is a figure which shows other embodiment of the follow plate with a heating function which concerns on this invention, (a) is a longitudinal cross-sectional view which shows the state which made the follow plate with a heating function contact the liquid level of the stored liquid in a container, (b) is the top view, (c) is a longitudinal cross-sectional view which shows the state which mounted | wore the mounting hole of the follow plate with a heating function with the suction inlet part of the pump. It is a figure which shows other embodiment of the follow plate with a heating function which concerns on the same invention, (a) is the AA cross section which shows the state which made the follow plate with a heating function contact the liquid level of the stored liquid in a container FIG. 2B is an enlarged plan view thereof. It is an expanded longitudinal cross-sectional view which shows the state which mounted | wore the suction hole part of the pump with the mounting hole of the follow plate with a heating function shown to Fig.7 (a). It is a schematic front view which shows the coating device provided with the conventional drawing-out apparatus.

2 Container 2a Inner peripheral surface 3 Reserved liquid 4 Discharge machine 4b Discharge port 10 Coating device 11 Pumping device 12, 48, 54 Follow plate with heating function 12a Outer peripheral portion 12b Lower surface 14 Pump 14a Suction port 14b Suction port portion 14c Saddle-shaped portion DESCRIPTION OF SYMBOLS 15 Outlet 16 Load spring 17 Pump apparatus 18 Lifting mechanism part 19 Constant load mechanism part 20 Pump casing 21 Bracket 22 Reduction gear 23 Electric motor 24 Rotor 25 Stator 25a Inner hole 26 Connecting rod 27 Universal joint 28 Rail 29 Slide plate 30 Support part 31 support 32 pedestal 33 caster 34 coupling tool 35 chain 36 sprocket 37 lift handle 38 upper plate 39 lower plate 40 reinforcing support 41 housing 42 drum shaft 43 drum 44 balance wire 45 pulley 47, DESCRIPTION OF SYMBOLS 1,55 Mounting hole 49 Air chamber 50 Recessed part 52 Inner edge 53 Groove part 55a Sealing part of mounting hole 61 Transfer pipe 62 Follow plate 62a Recessed part 63 Heating part 64 Temperature detection part 65 Connection electric wire 66 Temperature control part 67 Pressure control valve 80 Application pump 81 Electric motor

Claims (9)

A follow plate used as a lid of the container, which is provided in a suction port of a pump for pumping and storing the stored liquid stored in the container, and for heating the stored liquid in the container provided on the follow plate With a heating part ,
The follow plate includes a mounting hole for detachably sealingly coupling with the suction port portion of the pump, and an inner peripheral surface of the mounting hole is formed of synthetic resin or rubber. Follow plate with heating function. The inner peripheral surface of the mounting hole is formed in a short cylindrical shape, a tapered shape that expands toward the upper surface side of the follow plate, or one or more grooves that extend from the upper opening edge to the lower opening edge. The follow plate with a heating function according to claim 1 . 3. The follow plate with a heating function according to claim 1, further comprising a heat insulating portion disposed at a position covering a surface of the heating portion facing the side opposite to the stored liquid. The follow plate with a heating function according to claim 3 , wherein the heat insulating portion is the follow plate. The follow plate with a heating function according to any one of claims 1 to 4 , further comprising a temperature detection unit that detects a temperature corresponding to the heating unit. A temperature control unit that controls the liquid temperature of the stored liquid in the container or the liquid temperature of the stored liquid flowing out from the pump based on the detected temperature detected by the temperature detecting unit. The follow plate with a heating function according to Item 5 . In the pumping device that pumps the stored liquid stored in the container and pumps it out,
A pumping device comprising the follow plate with a heating function according to any one of claims 1 to 6 . 8. The pumping device according to claim 7 , wherein the pump is a uniaxial eccentric screw pump. On the liquid level of the stored liquid stored in the container, a follow plate with a heating function provided with a heating unit is arranged, and the suction port of the pump is installed in the mounting hole formed in the follow plate with the heating function, And the pumping-out method of the storage liquid which pumps up the storage liquid with the pump and makes it flow out,
The follower plate with a heating function in which the pump is not mounted in the mounting hole is disposed on the liquid level of the stored liquid, and the stored liquid in the container is heated by the heating unit, and then the liquid level A pumping-out method of the stored liquid, wherein the suction port portion of the pump is mounted in the mounting hole of the follow plate with a heating function disposed in the heating plate.

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