JP4802797B2 - Temperature adjustable syringe - Google Patents

Description

  The present invention relates to a syringe for supplying a viscous fluid, and more particularly to a temperature-adjustable syringe.

  Conventionally, a temperature-adjustable syringe has been used when a predetermined amount of viscous fluid such as an adhesive is applied to a printed circuit board or the like. An example of such a conventional temperature-adjustable syringe will be described with reference to FIG. FIG. 7A is a side view illustrating an example of a conventional temperature-adjustable syringe, and FIG. 7B is a side view illustrating a state in which the temperature-adjustable syringe is placed on a syringe stand with a partial perspective. FIG.7 (c) is a perspective view which shows the syringe stand.

  The syringe body 1 shown in FIG. 7A is made of glass or the like, a needle portion 1a is provided at the lower portion of the cylindrical body portion, and a flange 1b is formed around the opening at the upper portion of the cylindrical body portion. . An adapter 4 having a pressure adjusting tube 4c connected thereto is fitted to the flange 1b. A viscous fluid 10 is enclosed in the syringe body 1.

  By adjusting the pressure of the syringe body 1, a predetermined amount of the viscous fluid 10 is supplied from the needle portion 1 a to the printed circuit board or the like. Cannot be made constant. Therefore, the syringe body 1 is held by the syringe stand 8 having the shape shown in FIG. 7C to keep the temperature of the viscous fluid 10 constant.

  That is, as shown in FIG. 7B, the syringe stand 8 is provided with a heater portion 8a and a temperature sensor 8b. An output signal of the temperature sensor 8b is input to the temperature control device 6, and the temperature control device 6 The power supplied to the heater unit 8a is controlled so that the syringe body 1 holding unit of the syringe stand 8 has a predetermined temperature.

  In this manner, the viscous fluid 10 in the syringe body 1 is controlled to have a predetermined temperature. The syringe body 1 is taken out from the syringe stand 8 and the viscous fluid 10 is supplied to a printed circuit board or the like.

  When the viscous fluid 10 is supplied in the above-described conventional temperature-adjustable syringe, the syringe body 1 is removed from the syringe stand 8, so that the temperature of the viscous fluid 10 in the syringe body 1 changes over a long period of time. There was a problem. In addition, there is a problem that a large heat insulation device is required and the cost is increased.

  The temperature-adjustable syringe proposed in Japanese Utility Model Publication No. 5-26168 is a semiconductor heating device in which a holder portion having good thermal conductivity arranged so as to surround the syringe body is in close contact with the holder portion. It is kept warm by a cooling device. Since this temperature-adjustable syringe is used in a state where the syringe body is mounted on the holder portion, the application device becomes large.

  If the syringe body is used after being removed from the holder portion, there arises a problem that the temperature of the viscous fluid in the syringe body changes. In addition, there is a problem that a large heat insulation device is required and the cost is increased.

  In the adhesive application device proposed in Japanese Patent Laid-Open No. 5-192623, the heater 3 warms the casing 3 that covers the adhesive application nozzle tank 1 (corresponding to the syringe body 1 shown in FIG. 1 of the present application). In this adhesive application device, since the syringe body is covered with the casing, it takes time to supply the adhesive into the syringe body.

  In addition, if air bubbles are mixed in the adhesive in the syringe body, the application amount may become unstable, or bubbles may be mixed into the application part, causing defective products. However, there is a problem that it is difficult to remove the bubbles in the adhesive.

  That is, in the operation of removing bubbles in the adhesive in the syringe body, for example, both ends of the syringe body are closed and defoamed with a centrifugal defoamer. For this purpose, it is necessary to remove the syringe body from the casing, which is troublesome.

  In the liquid coating apparatus proposed in Japanese Patent Laid-Open No. 5-70673, an electric wire serving as a heater is wound around a container (corresponding to the syringe body 1 shown in FIG. 1 of the present application). For this reason, there has been a problem that it is difficult to replace the syringe body or remove the bubbles of the adhesive in the syringe body.

In the electrolytic solution injection device proposed in Japanese Patent Application Laid-Open No. 7-22298, a syringe body is provided with a heater and a temperature sensor. In this electrolyte solution injection apparatus, since the heater and the temperature sensor are provided in the syringe body, there is a problem that it takes time to replace the syringe body and to remove the bubbles of the adhesive in the syringe body.
Japanese Utility Model Laid-Open No. 5-26168, paragraphs 0011 to 0013, FIG. Japanese Patent Laid-Open No. 5-192623, paragraph 0012, FIG. Japanese Patent Application Laid-Open No. 5-70673, paragraph 0011, FIG. Japanese Patent Laid-Open No. 7-22298, paragraph 0014, FIG.

  The present invention has been made in view of the above points, and its object is that the syringe heating device has a simple configuration, and the syringe can be easily removed from the syringe heating device. It is an object of the present invention to provide a temperature-adjustable syringe that can be easily exchanged and remove bubbles in the adhesive within the syringe body, and in which the application operation is performed with the temperature of the syringe adjusted.

The temperature-adjustable syringe according to the present invention includes a syringe body in which a needle part is provided at a lower part of a cylindrical body part and a flange is formed around an opening at an upper part of the cylindrical body part, and the body part of the syringe body. A first cover comprising a tubular body that is detachably tightly fitted, has a heater portion printed on its outer surface, and is provided with a temperature sensor; and a second cover comprising a tubular body covering the first cover; It includes an adapter having a locking portion that can be freely engaged and disengaged with the flange and connected to a pressure adjusting tube.

The temperature-adjustable syringe according to the present invention includes a syringe body in which a needle part is provided at a lower part of a cylindrical body part and a flange is formed around an opening at an upper part of the cylindrical body part, and the body part of the syringe body. A first cover comprising a tubular body that is detachably tightly fitted, a heater portion is formed on the outer surface by a winding, and a temperature sensor is provided, and a second cover comprising a tubular body that covers the first cover And an adapter having a locking portion detachably engageable with the flange and connected with a pressure adjusting tube.

Further, in each of the temperature-adjustable syringes, a plurality of cylindrically extending flanges extending radially outward are formed around the upper opening of the cylindrical body of the syringe body, and the locking portion of the adapter Is the same number as the flange, and depending on the rotation position with respect to the syringe body, the center axis thereof coincides with the center axis of the flange and is configured to lock the flange.

  In addition, the film in the examples described later is a sheet having a thickness that is easily deformed when pressed by hand when formed into a cylindrical shape with a resin sheet or the like, and the tubular body is a resin pipe. Although it is of a thickness that does not easily deform even when pushed by hand, the terminology used in the claims describes a cylindrically formed film and tube as a superordinate tube .

  According to the temperature-adjustable syringe of the present invention, the syringe heating device has a simple configuration, the syringe can be easily removed from the syringe heating device, and the syringe body can be replaced or bubbles in the adhesive in the syringe body The operation can be easily performed, and the application operation can be performed with the temperature of the syringe adjusted.

  The best mode for carrying out the present invention will be described below with reference to examples.

  1A is a side view showing a temperature-adjustable syringe that is Embodiment 1 of the present invention, FIG. 1B is a bottom view and a top view of members of the temperature-adjustable syringe, and FIG. 2 is the temperature-adjustable syringe FIG. 3A is a cross-sectional view showing a member of the temperature-adjustable syringe, FIG. 3B is a cross-sectional view in which a part of the temperature-adjustable syringe is added, and FIG. The side view which shows the partial cross section of the same temperature adjustment type syringe, FIG. 5 is a side view which shows the state by which the same temperature adjustment type syringe was mounted in the syringe stand as a partial cross section.

  A syringe body 1 shown in FIG. 1 (a) is made of glass or the like, and a needle portion 1a is provided at the lower portion of the cylindrical barrel portion, and a flange 1b is formed around the opening at the upper portion of the cylindrical barrel portion. . An adapter 4 having a pressure adjusting tube 4c connected thereto is fitted to the flange 1b. A viscous fluid 10 is enclosed in the syringe body 1.

  As shown in FIGS. 1A and 1B, flanges 1b and 1b are formed on the upper portion of the syringe body 1 so as to extend outward in the diameter direction. The adapter 4 is formed with locking portions 4b and 4b extending outward in the diameter direction, and further, a ring-shaped protrusion having an outer diameter slightly smaller than the inner diameter of the cylindrical body portion of the syringe body 1 at the center of the lower surface. Part 4a is formed.

  When the adapter 4 is fitted to the syringe body 1, the ring-shaped convex portion 4 a is fitted to the cylindrical body portion of the syringe body 1 in a position where the flanges 1 b and 1 b and the locking portions 4 b and 4 b do not interfere with each other. 4, the adapter 4 is rotated with respect to the syringe main body 1 so that the center axes of the syringe 4 and the syringe main body 1 coincide with each other, and the flanges 1b and 1b are locked by the locking portions 4b and 4b. The adapter 4 can be removed from the syringe body 1 by the reverse operation. Thus, the adapter 4 can be easily attached to and detached from the syringe body 1.

  FIG. 2 shows a first cover 2 and a second cover 3 covering the first cover 2 that are detachably fitted to the syringe body 1. The first cover 2 is made of a cylindrical film, the heater portion 2a is printed on the surface thereof, and the temperature sensor 2c is attached.

  The inner diameter of the first cover 2 is slightly smaller than the outer diameter of the syringe main body 1, and the position is held by frictional force when it is put on the syringe main body 1, but the frictional force is small and easily shifted from the syringe main body 1. Can be removed. The second cover 3 is made of a cylindrical film, and the inner diameter thereof is large enough to be in close contact with the first cover 2 when the first cover 2 is inserted in the direction of the arrow.

  FIG. 3A shows a state where the first cover 2 is covered with the second cover 3. FIG. 3B and FIG. 4 show a state where the syringe body 1 is inserted in a state where the first cover 2 is covered with the second cover 3 and integrated. Note that reference numeral 7 shown in FIG. 4 denotes a conductive wire that connects the temperature control device 6 (shown in FIG. 5) to the heater portion 2a and the temperature sensor 2c provided on the first cover 2.

  The output signal of the temperature sensor 2c is input to the temperature control device 6, and the temperature control device 6 controls the power supplied to the heater unit 2a so that the syringe body 1 has a predetermined temperature. In this state, the syringe body 1 can be held by hand and supplied to a member to which the viscous fluid 10 in the syringe body 1 is applied. At this time, since the syringe body 1 is maintained at a predetermined temperature, the temperature of the viscous fluid does not change even when the coating operation is performed for a long time.

  Since the heat retaining device can be configured only by providing the heater 2a and the temperature sensor 2c on the first cover 2, the manufacturing cost is reduced. In addition, since the second cover 3 has a heat insulating effect, heat conduction between the hand and the syringe body 1 is prevented when the work is held by hand, and the temperature change of the viscous fluid does not occur. Further, the syringe can be easily replaced or the viscous fluid in the syringe can be easily defoamed simply by removing the syringe body 1 from the first cover 2.

  FIG. 5 shows a state in which the syringe body 1 is held on the syringe stand 5. Thus, since the syringe body 1 is kept warm by the temperature control device 6 even when the application operation is interrupted, the application operation can be started immediately after the interruption.

  In this embodiment, since the first cover is formed of a film, the heat conductivity is high, and the temperature of the viscous fluid 10 in the syringe body 1 can be accurately controlled.

  FIG. 6 is a side view showing a partial cross section of a temperature-adjustable syringe that is Embodiment 2 of the present invention. In this example, the first cover 2 and the second cover 3 are made of a tubular body, and the first cover 2 and the second cover 3 are integrated so as to have a gap between the spacers 9 and 9. It is fixed. The spacer 9 may be formed integrally with the first cover 2 or the second cover 3, or may be formed separately from these. Other configurations are the same as those of the first embodiment, and the same members are denoted by the same reference numerals and detailed description thereof is omitted.

  This example has the same effect as that of the first embodiment. However, since there is a gap between the first cover 2 and the second cover 3, the heat retaining effect is enhanced. It is also possible to further enhance the heat retaining effect and prevent oxidation of the heater and the like by sealing an inert gas having low thermal conductivity in the gap between the first cover 2 and the second cover 3.

  The embodiment is configured as described above, but the invention is not limited to this. For example, the effect of the invention can be obtained without the second cover. Further, the heater portion may be formed by winding wound around the first cover 2 of the tubular body, and is formed by sticking a film on which the heater portion is printed on the first cover 2 of the tubular body. May be. Or you may print-print a heater part directly on the 1st cover 2 of a tubular body. Further, the temperature sensor may be formed integrally with the first cover 2.

Fig.1 (a) is a side view which shows the temperature control type syringe which is Example 1 of this invention, FIG.1 (b) is the bottom view and top view of the member of the temperature control type syringe. It is a perspective view which shows the member of the same temperature adjustment type syringe. FIG. 3A is a cross-sectional view showing members of the temperature-adjustable syringe, and FIG. 3B is a cross-sectional view in which a part of the temperature-adjustable syringe is added. It is a side view which shows the partial cross section of the same temperature control type | mold syringe, and shows a part member transparently. It is a side view which shows the state by which the same temperature adjustment type syringe was mounted in the syringe stand as a partial cross section. It is a side view which shows a partial cross section of the temperature control type | mold syringe which is Example 2 of this invention, and shows a part member transparently. FIG. 7A is a side view illustrating an example of a conventional temperature-adjustable syringe, and FIG. 7B is a side view illustrating a state in which the temperature-adjustable syringe is placed on a syringe stand with a partial perspective. FIG.7 (c) is a perspective view which shows the syringe stand.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Syringe main body, 1a Needle part, 1b Flange 2 1st cover, 2a Heater part, 2c Temperature sensor 3 2nd cover 4 Adapter, 4a Ring-shaped convex part, 4b Locking part, 4c Pressure adjustment tube 5 Syringe stand 6 Temperature Control Device 7 Conductor 8 Syringe Stand, 8a Heater, 8b Temperature Sensor 9 Spacer 10 Viscous Fluid

Claims (3)

A syringe body in which a needle portion is provided at a lower portion of the cylindrical body and a flange is formed around an opening at an upper portion of the cylindrical body, and the outer surface of the syringe body is closely and detachably fitted to the body of the syringe body. A first cover made of a tubular body printed with a heater and provided with a temperature sensor; a second cover made of a tubular body covering the first cover; And a temperature-adjustable syringe comprising an adapter having a pressure adjustment tube connected thereto. A syringe body in which a needle portion is provided at a lower portion of the cylindrical body and a flange is formed around an opening at an upper portion of the cylindrical body, and the outer surface of the syringe body is closely and detachably fitted to the body of the syringe body. A first cover made of a tubular body having a heater portion formed of a winding and provided with a temperature sensor; a second cover made of a tubular body covering the first cover; A temperature-adjustable syringe comprising an adapter having a locking portion and connected with a pressure adjusting tube. A plurality of cylindrically extending flanges extending radially outward are formed around the upper opening of the cylindrical body of the syringe body, and the number of locking portions of the adapter is the same as the flange, 3. The temperature-adjustable syringe according to claim 1, wherein a center axis thereof coincides with a center axis of the flange depending on a rotation position with respect to the syringe body, and the flange is locked .

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