KR102325348B1 - Apparatus for Regulating Temperature for Injection Molding Machine - Google Patents

Abstract

The present invention provides a heating unit coupled to the barrel for heating the molding material supplied into the barrel of the injection molding machine; a compartment coupled to the barrel; a cover part coupled to the partition part; a supply unit for supplying a cooling gas to the inside of the cover unit; and at least one of an injection opening/closing part for selectively opening and closing the injection hole formed in the cover part and an exhaust opening/closing part for selectively opening and closing the discharge hole formed in the cover part.

Description

Temperature control device for injection molding machine {Apparatus for Regulating Temperature for Injection Molding Machine}

The present invention relates to an injection molding machine that performs injection molding to produce an injection product.

Injection molding is the most widely used manufacturing method for manufacturing plastic products. For example, in products such as televisions, mobile phones, PDAs, and the like, various parts including covers and cases may be manufactured through injection molding.

In general, the manufacture of products through injection molding is made through the following processes. First, a molding material with pigments, stabilizers, plasticizers, fillers, etc. added is put into a hopper to make it in a molten state. Next, the molding material in the molten state is injected into the mold and then solidified through cooling. Next, after extracting the solidified molding material from the mold, unnecessary parts are removed. Through these processes, injection products having various types and sizes are manufactured. As a facility for performing such injection molding, an injection molding machine is used.

1 is a schematic block diagram of an injection molding machine according to the prior art.

Referring to FIG. 1 , an injection molding machine 10 according to the prior art includes a clamping device 11 and an injection device 12 .

The clamping device 11 solidifies the molding material in a molten state supplied from the injection device 12 through cooling. The clamping device 11 includes a mold 11a having a cavity having a shape corresponding to the injection product. When the injection device 12 supplies the molten molding material to the cavity of the mold 11a, the clamping device 11 solidifies the molten molding material located in the cavity through cooling. The solidified molding material is manufactured into an injection product through a subsequent process.

The injection device 12 supplies the molding material in a molten state to the clamping device 11 . The injection device 12 includes a barrel 12a and an injection screw 12b disposed inside the barrel 12a. When the molding material is supplied into the barrel 12a through the hopper, the injection device 12 rotates the injection screw 12b to melt the molding material inside the barrel 12a and measure it. is done As the metering operation is performed in this way, the molten molding material flows forward and is accumulated in front of the injection screw 12b. When the metered molding material is located in front of the injection screw 12b, the injection device 12 moves the injection screw 12b forward to supply the molding material in a molten state to the clamping device 11 The ejection operation is performed.

The injection device 12 includes a heater 12c that heats the barrel 12a. The heater 12c is involved in melting the molding material inside the barrel 12a by heating the barrel 12a. The heater 12c is coupled to the outer surface of the barrel 12a.

Accordingly, in the injection molding machine 10 according to the prior art, there is a problem in that the heat generated by the heater 12c to heat the barrel 12a causes a loss, so that the process cost for injection molding increases.

The present invention has been devised to solve the above-described problems, and to provide a temperature control device for an injection molding machine that can reduce heat loss and reduce process costs for injection molding.

In order to achieve the above object, the present invention may include the following configuration.

A temperature control device for an injection molding machine according to the present invention comprises: a heating unit coupled to the barrel to heat a molding material supplied into the barrel of the injection molding machine; a compartment coupled to the barrel; a cover part coupled to the partition part; a supply unit for supplying a cooling gas to the inside of the cover unit; and an injection opening/closing part selectively opening and closing the injection hole formed in the cover part according to the pressure of the cooling gas supplied by the supply part.

A temperature control device for an injection molding machine according to the present invention comprises: a heating unit coupled to the barrel to heat a molding material supplied into the barrel of the injection molding machine; a compartment coupled to the barrel; a cover part coupled to the partition part; and a discharge opening/closing part selectively opening and closing the discharge hole formed in the cover part according to the internal pressure of the cover part.

According to the present invention, the following effects can be achieved.

The present invention can reduce the degree of loss of heat for heating the molding material by using the cover member, and can contribute to reducing the process cost for injection molding.

1 is a schematic block diagram of an injection molding machine according to the prior art;
2 is a schematic perspective view showing an example of an injection molding machine to which a temperature control device for an injection molding machine according to the present invention is applied;
3 is a schematic block diagram of a temperature control device for an injection molding machine and an injection molding machine according to the present invention;
4 is a schematic perspective view illustrating a state in which a heating unit and a partition unit are coupled to a barrel in the temperature control device for an injection molding machine according to the present invention;
5 is a schematic side view showing a state in which the temperature control device for an injection molding machine according to the present invention is coupled to the barrel;
6 is a schematic cross-sectional view showing a state in which the temperature control device for an injection molding machine according to the present invention is coupled to the barrel, taken along line II of FIG.
7 is a conceptual side view illustrating a connection relationship between a supply part and a cover part in the temperature control device for an injection molding machine according to the present invention;
8 is a schematic cross-sectional view showing a cover part taken along the line II-II of FIG. 7 in the temperature control device for an injection molding machine according to the present invention;
9 and 10 are schematic perspective views of the injection opening and closing part in the temperature control device for an injection molding machine according to the present invention;
11 to 13 are schematic partial cross-sectional views showing a state in which the injection opening/closing unit is coupled to the cover part in the temperature control device for an injection molding machine according to the present invention, taken along the line II-II of FIG.
14 and 15 are schematic perspective views of a discharge opening/closing unit in the temperature control device for an injection molding machine according to the present invention;
16 to 18 are schematic partial cross-sectional views showing a state in which the discharge opening/closing unit is coupled to the cover part in the temperature control device for an injection molding machine according to the present invention, taken along the line II-II of FIG.
19 is a schematic perspective view illustrating a state in which a heating unit and a partition unit are coupled to a barrel in a temperature control device for an injection molding machine according to a modified embodiment of the present invention;
20 is a schematic side view showing a state in which a temperature control device for an injection molding machine is coupled to a barrel according to a modified embodiment of the present invention;
21 is a conceptual side view showing the arrangement relationship between supply mechanisms, connection mechanisms, cover members, injection openings and closing parts, and discharge openings and closing parts in a temperature control device for an injection molding machine according to a modified embodiment of the present invention;

Hereinafter, an embodiment of a temperature control device for an injection molding machine according to the present invention will be described in detail with reference to the accompanying drawings.

2 and 3 , the temperature control device 1 for an injection molding machine according to the present invention is provided in the injection molding machine 100 .

Prior to describing an embodiment of the temperature control device 1 for an injection molding machine according to the present invention, the injection molding machine 100 will be described as follows.

The injection molding machine 100 is for manufacturing an injection product. The injection molding machine 100 includes an injection device 200 and a clamping device 300 .

The injection device 200 serves to supply the molding material in a molten state to the clamping device 300 . The injection device 200 includes a barrel 210 , an injection body 220 to which the barrel 210 is coupled, an injection screw 230 disposed inside the barrel 210 , and the injection screw 230 . It includes an injection drive unit 240 for driving. The barrel 210 may be disposed parallel to the first axial direction (X-axis direction). The first axial direction (X-axis direction) may be an axial direction parallel to a direction in which the injection body 220 and the clamping device 300 are spaced apart from each other. When the molding material is supplied to the inside of the barrel 210, the injection driver 240 rotates the injection screw 230 to move the molding material supplied into the barrel 2 forward (in the direction of the FD arrow). can be moved In this process, the molding material may be melted by friction. The front (FD arrow direction) may be a direction from the injection body 220 toward the barrel 210 and may be a direction parallel to the first axial direction (X-axis direction). When the molding material in the molten state is located in the front (FD arrow direction) side with respect to the injection screw 230, the injection driver 240 can move the injection screw 230 forward (FD arrow direction). have. Accordingly, the molding material in a molten state may be supplied from the barrel 210 to the clamping device 300 . In this case, the molding material in the molten state may be supplied to the clamping device 300 through the nozzle 210a coupled to the barrel 210 . The nozzle 210a may be coupled to the barrel 210 so as to be positioned toward the front (in the direction of the FD arrow) with respect to the barrel 210 .

The clamping device 300 serves to solidify the molding material in a molten state through cooling. The clamping device 300 includes a fixed platen 310 to which a fixed mold (not shown) is coupled, and a movable platen 320 to which a moving mold (not shown) is coupled. When the movable mold plate 320 moves to close the movable mold and the stationary mold, the injection device 200 moves through the stationary plate 310 to the inside of the movable mold and the stationary mold. Molding material in a molten state to supply When the inside of the movable mold and the stationary mold are filled with the molding material in the molten state, the clamping device 300 solidifies the molding material in the molten state through cooling and then moves the movable mold plate 320 to move the movable mold and forming the fixed mold.

The temperature control device 1 for an injection molding machine according to the present invention is responsible for controlling the temperature of the molding material supplied to the barrel 210 . To this end, the temperature control device 1 for an injection molding machine according to the present invention may include a heating part 2 , a partition part 3 , a cover part 4 , a supply part 5 , and a connection part 6 . .

2 to 4 , the heating unit 2 heats the molding material supplied into the barrel 210 . The heating unit 2 may be coupled to the barrel 210 . The heating unit 2 may heat the molding material supplied into the barrel 210 by heating the barrel 210 . Accordingly, the molding material supplied into the barrel 210 may be melted through heating using the heating unit 2 and friction using the rotation of the injection screw 230 .

The heating unit 2 may be coupled to the barrel 210 to surround the outer surface of the barrel 210 . For example, when the barrel 210 is formed in a cylindrical shape, the heating unit 2 may be formed in a circular ring shape with an empty interior. The heating unit 2 may heat the barrel 210 while generating heat as power is supplied. For example, the heating unit 2 may be implemented as an electric heater.

A plurality of the heating units 2 may be coupled to the barrel 210 . In this case, the heating units 2 may be coupled to the barrel 210 to be disposed at different positions along the first axial direction (X-axis direction). Accordingly, the heating units 2 may heat different portions of the barrel 210 . The heating units 2 may be disposed to be spaced apart from each other in the first axial direction (X-axis direction).

2 to 4 , the partition part 3 is coupled to the barrel 210 . The partition part 3 may be coupled to the barrel 210 so as to protrude from the outer surface of the barrel 210 . The compartment 3 may protrude a greater distance from the outer surface of the barrel 210 than the heating unit 2 .

The partition part 3 may include a plurality of partition members 31 (shown in FIG. 4 ).

The partition members 31 may be coupled to the barrel 210 to be spaced apart from each other in the first axial direction (X-axis direction). Accordingly, the partition members 31 may partition a temperature control area (TA, shown in FIG. 4 ). The temperature control area TA may be disposed between the two partition members 31 based on the first axial direction (X-axis direction). The temperature control area TA may be disposed between the outer surface of the barrel 210 and the inner surface of the cover part 4 . The heating unit 2 may be coupled to the barrel 210 to be disposed in the temperature control area TA. At least one heating unit 2 may be disposed in the temperature control area TA. When a plurality of heating units 2 are disposed in the temperature control area TA, the heating units 2 are the distance the molding material moves from the inside of the barrel 210 toward the front (FD arrow direction). It is also possible to heat the molding material to different temperatures.

The partition members 31 may be coupled to the barrel 210 to surround the outer surface of the barrel 210 , respectively. For example, when the barrel 210 is formed in a cylindrical shape, each of the partition members 31 may be formed in a circular ring shape with an empty interior. Based on the first axial direction (X-axis direction), the heating unit 2 may be coupled to the barrel 210 between the partition members 31 . The partition members 31 may protrude a greater distance from the outer surface of the barrel 210 than the heating unit 2 .

2 to 5 , the cover part 4 is coupled to the partition part 3 . The cover part 4 may be disposed to surround the temperature control area TA. Accordingly, the cover part 4 may accommodate the barrel 210 and the heating part 2 therein. Accordingly, the cover part 4 may reduce the degree of loss of heat generated by the heating part 2 to heat the barrel 210 to the outside of the temperature control area TA. Accordingly, since the temperature control device 1 for an injection molding machine according to the present invention can reduce heat loss by using the cover part 4, the amount of energy consumed to operate the heating part 2 is reduced by injection molding. It can contribute to reducing the process cost for molding. The cover part 4 may be arranged to accommodate the entire barrel 210 or a part of the barrel 210 with respect to the first axial direction (X-axis direction). The partition part 3 may be disposed inside the cover part 4 .

The cover part 4 may include a cover member 41 .

The cover member 41 is disposed to surround the temperature control area TA. Accordingly, the cover member 41 may reduce heat loss to the temperature control area TA. The cover member 41 may be disposed to surround the temperature control area TA by being coupled to the partition members 31 . One side of the cover member 41 is coupled to the first partition member 311 (shown in FIG. 4), and the other side is coupled to the second partition member 312 (shown in FIG. 4), whereby the temperature control region ( TA) may be disposed to surround. The first partition member 311 and the second partition member 312 may be coupled to the barrel 210 to be spaced apart from each other in the first axial direction (X-axis direction). The first partition member 311 and the second partition member 312 may partition the temperature control area TA. In this case, the temperature control area TA may be disposed between the first partition member 311 and the second partition member 312 based on the first axial direction (X-axis direction). . The first partition member 311 may be coupled to the barrel 210 at a position spaced apart from the second partition member 312 toward the front (FD arrow direction). Each of the first partition member 311 and the second partition member 312 may correspond to a partition member 31 (shown in FIG. 4 ) of the partition part 3 .

The cover member 41 may be coupled to the partition members 31 using at least one of a fastening means such as a bolt, an attachment means having an attachment force, and a fixing means such as a wire. The cover member 41 may be formed in a cylindrical shape with an empty interior, but is not limited thereto, and may be formed in another shape as long as it can be disposed to surround the temperature control area TA.

The cover member 41 may be formed of fabric. Accordingly, the injection device 1 according to the present invention can achieve the following effects when compared to the embodiment in which the cover member 41 is formed of metal.

First, in the injection device 1 according to the present invention, since the cover member 41 is formed of fabric, the cover member 41 is manufactured in comparison with the embodiment in which the cover member 41 is formed of metal. It is possible to improve the easiness of the processing process for the above and the assembly process of coupling the cover member 41 to the first partition member 311 and the second partition member 312 .

Second, in the injection device 1 according to the present invention, since the cover member 41 is formed of fabric, the weight of the cover member 41 is compared to the embodiment in which the cover member 41 is formed of metal. can reduce Accordingly, the injection device 1 according to the present invention can reduce the load applied to the barrel 2 due to the cover member 41, thereby reducing the degree of sagging in the barrel 2 have. In addition, the injection device 1 according to the present invention can reduce the size of the rigidity that the barrel 2 must have in order to support the cover member 41 . Therefore, in the injection apparatus 1 according to the present invention, it is possible to reduce the material cost by reducing the thickness of the barrel 2 when compared to the embodiment in which the cover member 41 is formed of metal, so that the Manufacturing cost can be reduced.

The cover member 41 may be formed of a fabric including a heat insulating material. Accordingly, the injection device 1 according to the present invention can additionally have a heat insulation function for the temperature control area TA by using the cover member 41, so that the temperature control area TA is generated. heat loss can be further reduced. Accordingly, the injection apparatus 1 according to the present invention further reduces the amount of energy consumed to operate the heating unit 2 , thereby contributing to further reducing the process cost for injection molding. In addition, the injection device 1 according to the present invention can reduce the degree of increase in the temperature of the cover member 41 even when the temperature of the temperature control area TA increases by using a heat insulating material. Therefore, the injection device 1 according to the present invention can reduce the risk of a safety accident due to high temperature even when a worker located in the vicinity comes into contact with the cover member 41 .

4 to 6 , the cover part 4 may include a support member 42 (shown in FIG. 6 ).

The support member 42 supports the cover member 41 . The support member 42 may support the cover member 41 so that the cover member 41 is disposed at a position spaced apart from the heating unit 2 . Accordingly, the support member 42 may prevent the cover member 41 from contacting the heating unit 2 . Therefore, the temperature control device 1 for an injection molding machine according to the present invention can be implemented such that a temperature control area TA of a size sufficient to accommodate the heat generated by the heating unit 2 is maintained. . In addition, the temperature control device 1 for an injection molding machine according to the present invention may be implemented so that an air layer exists between the cover member 41 and the support member 42 . Accordingly, the temperature control device 1 for an injection molding machine according to the present invention can reduce the effect of the heat generated by the heating unit 2 on the temperature of the cover member 41 due to the air layer. Therefore, since the temperature control device 1 for an injection molding machine according to the present invention can reduce the thickness of the cover member 41 , it is possible to reduce the manufacturing cost for manufacturing the cover member 41 .

The support member 42 may be supported by partition members 311 and 312 that partition the temperature control area TA. In this case, the support member 42 may support the cover member 41 to limit the distance the cover member 41 can move toward the heating unit 2 . The support member 42 may be formed of a material having a stronger rigidity than that of the cover member 41 . For example, the support member 42 may be formed of metal. When the cover member 41 is formed of fabric or a fabric including a heat insulating material, the support member 42 is bent due to the flexibility of the cover member 41, so that the heating unit ( 2) can be prevented from coming into contact. Accordingly, the injection device 1 according to the present invention may be implemented such that the temperature control area TA of a size sufficient to accommodate the heat generated by the heating unit 2 is maintained.

The support member 42 may be coupled to the cover member 41 . In this case, the support member 42 increases the rigidity of the cover member 41 itself, so that the cover member 41 is disposed at a position spaced apart from the heating unit 2 . can support Although not shown, the support member 42 may be disposed between the cover member 41 and the heating unit 2 in the temperature control area TA. In this case, the support member 42 may be disposed at a position spaced apart from each of the cover member 41 and the heating unit 2 . The support member 42 may support the cover member 41 to limit a movable distance of the cover member 41 toward the heating unit 2 .

4 and 7 , the supply unit 5 supplies cooling gas. The cooling gas may be ambient air at room temperature. The cooling gas may be a gas having a temperature lower than room temperature. The cooling gas supplied by the supply unit 5 may be injected into the cover unit 4 . Accordingly, the temperature control device 1 for an injection molding machine according to the present invention is the barrel through heating using the heating unit 2 (shown in FIG. 4 ) and cooling using the cooling gas supplied by the supply unit 5 . It is possible to improve the accuracy of the operation of adjusting the molding material located inside the 210 to a preset temperature. Looking at this in detail, it is as follows.

First, when the molding material is adjusted to a preset temperature only by the heating unit 2, the heating unit 2 heats the barrel 210 so that when the molding material reaches a preset temperature, the barrel 210 heating can be stopped. However, even when the heating unit 2 stops heating the barrel 3 , the molding material may exceed a preset temperature due to residual heat remaining in the barrel 210 . In addition, when the molding material becomes less than a preset temperature after the heating unit 2 stops heating the barrel 210 , the heating unit 2 resumes heating the barrel 210 . However, since it takes a predetermined time until the molding material is heated as the heating unit 2 heats the barrel 210, the molding material can be moved forward (in the direction of the FD arrow) in a state below the preset temperature. . Therefore, it is difficult to adjust the molding material to a preset temperature only by the heating unit 2 .

Next, when the molding material is adjusted to a predetermined temperature using the heating unit 2 and the supply unit 5 , the heating unit 2 heats the barrel 210 so that the molding material is heated to a predetermined temperature. When reaching or approaching a preset temperature, the supply unit 5 may inject a cooling gas into the cover unit 4 . Accordingly, the supply unit 5 may reduce the effect of residual heat remaining in the barrel 210 on the temperature of the molding material. In addition, when the molding material reaches a preset temperature or approaches a preset temperature, the molding material can be adjusted to a preset temperature by operating the heating unit 2 and the supply unit 5 in parallel. That is, the heating unit 2 may not be completely stopped. Accordingly, when the molding material is lower than the preset temperature, the heating unit 2 heats the barrel 210 to shorten the time it takes for the molding material to be heated.

Accordingly, the temperature control device 1 for an injection molding machine according to the present invention can improve the accuracy of the operation of adjusting the molding material to a preset temperature by using the heating unit 2 and the supply unit 5 . Accordingly, the temperature control device 1 for an injection molding machine according to the present invention improves the quality of an injection product by accurately controlling the molding material to a preset temperature even when injection molding is performed using a temperature-sensitive molding material. can contribute In addition, the temperature control device 1 for an injection molding machine according to the present invention is the barrel 210 using the cooling gas supplied by the supply unit 5 when the molding material is replaced by injection molding at a lower temperature. The time it takes to cool can be shortened. Therefore, the temperature control device 1 for an injection molding machine according to the present invention reduces the time during which the operation is stopped until the barrel 210 is cooled to correspond to the replaced molding material, thereby increasing the operation rate for the injection product. productivity can be improved.

4 and 7 , the connection part 6 is connected to each of the supply part 5 and the cover part 4 . Accordingly, the connection part 6 may inject the cooling gas supplied by the supply part 5 into the inside of the cover part 4 . The connection part 6 may have one side connected to the supply part 5 and the other side connected to the cover part 4 . The connection part 6 may be connected to the cover part 4 so as to communicate with the temperature control area TA. Accordingly, the connection part 6 may inject a cooling gas into the temperature control area TA. The connection part 6 may be implemented as a hose, a tube, etc. having flexibility. The connection part 6 may be implemented as a duct. The duct may be formed of synthetic resin or metal.

As the connection part 6 is provided, the supply part 5 may be disposed at a position spaced apart from the cover part 4 . In this case, the supply part 5 may inject the cooling gas into the temperature control area TA through the connection part 6 at a position spaced apart from the cover part 4 . That is, the supply part 5 may be disposed not to be directly installed on the cover part 4 . For example, the supply unit 5 is installed to be supported on the bottom surface B of the workshop where the injection body 220 is installed, and the cooling gas can be injected into the temperature control area TA through the connection unit 6 . have.

Accordingly, the temperature control device 1 for an injection molding machine according to the present invention can achieve the following effects.

First, in the temperature control device 1 for an injection molding machine according to the present invention, since the supply part 5 is not directly installed on the cover part 4 , the supply part 5 is installed directly on the cover part 4 . In comparison with the example, the load applied to the cover part 4 and the barrel 210 may be reduced. Accordingly, the temperature control device 1 for an injection molding machine according to the present invention can reduce the degree of sagging in the cover part 4 and the barrel 210, and the cover part 4 and the barrel. It is possible to reduce the amount of rigidity that 210 must have. In addition, since the temperature control device 1 for an injection molding machine according to the present invention can reduce the load applied to the cover part 4 , the cover member 41 is made of fabric or a fabric containing an insulating material. ), it may be implemented to control the temperature of the temperature control area TA by using the cooling gas supplied from the supply unit 5 .

Second, in the temperature control device 1 for an injection molding machine according to the present invention, the cooling gas is supplied to the temperature control area TA through the connection part 6 at a position where the supply part 5 is spaced apart from the cover part 4 . is implemented to inject Accordingly, since the temperature control device 1 for an injection molding machine according to the present invention can improve the degree of freedom for the arrangement of the supply unit 5, the supply unit 5 is placed in a space that can improve the space utilization according to the workplace. can be placed.

The connection part 6 may be coupled to the cover part 4 at a midpoint (CP, shown in FIG. 7 ) of the cover part 4 based on the first axial direction (X-axis direction). . Accordingly, the connection part 6 may inject the cooling gas into the midpoint CP of the temperature control area TA based on the first axial direction (X-axis direction). Accordingly, the connection part 6 may adjust the temperature control area TA to a uniform temperature as a whole.

7 and 8 , the connection part 6 may supply cooling gas to the inside of the cover part 4 through an injection hole 43 (shown in FIG. 8 ) formed in the cover part 4 . have. The injection hole 43 is formed through the cover portion 4 . The connection part 6 may be coupled to the cover part 4 so as to communicate with the temperature control area TA through the injection hole 43 . The injection hole 43 may be formed through the cover member 41 . A discharge hole 44 (shown in FIG. 8 ) may be formed in the cover part 4 . The discharge hole 44 may be formed through the cover portion 4 . The discharge hole 44 may function as a passage for discharging gas from the inside of the cover part 4 to the outside of the cover part 4 . The gas discharged through the discharge hole 44 includes the cooling gas injected into the cover portion 4 through the injection hole 43 , the gas present in the cover portion 4 , and the like. It may be an internal gas. The discharge hole 44 and the injection hole 43 may be formed to pass through the cover member 41 at positions spaced apart from each other along the direction in which the cover member 41 surrounds the temperature control area TA. can

8 to 12 , the temperature control device 1 for an injection molding machine according to the present invention may include an injection opening/closing unit 7 .

The injection opening/closing part 7 selectively opens and closes the injection hole 43 . According to the pressure of the cooling gas supplied by the supply unit 5 , the injection opening/closing unit 7 may selectively open and close the injection hole 43 . 11, when the pressure inside the connection part 6 increases as the supply part 5 supplies the cooling gas toward the inside of the cover part 4, the injection opening/closing part 7 opens the injection hole (43) can be opened. Accordingly, the cooling gas supplied by the supply unit 5 may be supplied to the inside of the cover unit 4 . As shown in FIG. 12 , when the supply unit 5 stops the supply of the cooling gas, the injection opening/closing unit 7 may close the injection hole 43 . Accordingly, the injection opening/closing part 7 may block the internal gas located inside the cover part 4 from being discharged through the injection hole 43 .

Therefore, the temperature control device 1 for an injection molding machine according to the present invention only controls the supply of the cooling gas by the supply unit 5, and the injection hole 43 is selectively selected using the injection opening/closing unit 7 It can be implemented to open and close with Accordingly, the temperature control device 1 for an injection molding machine according to the present invention can further improve the easiness and accuracy of the operation of adjusting the molding material to a preset temperature.

The injection opening/closing unit 7 may include an injection body 71 and an injection opening/closing member 72 .

The injection body 71 is coupled to the cover portion 4 so as to be inserted into the injection hole 43 . The injection body 71 may be coupled to the cover member 41 . An injection connection hole 70 may be formed in the injection body 71 . The injection connection hole 70 may be formed through the injection body 71 . The connection part 6 may be coupled to the injection body 71 so as to communicate with the inside of the cover part 4 through the injection connection hole 70 . 9 and 10 show that the injection body 71 is formed in a rectangular parallelepiped shape as a whole, but is not limited thereto, and can be coupled to the cover part 4 to selectively open and close the injection hole 43 If it has a shape, it may be formed in another shape such as a cylindrical shape.

The injection body 71 may include a first injection body 711 and a second injection body 712 .

The first injection body 711 may be inserted into the injection hole 43 from the outside of the cover portion (4). The first injection body 711 may include a first injection flange 711a. The first injection flange 711a may be supported on the outer surface of the cover portion 4 from the outside of the cover portion 4 .

The second injection body 712 may be coupled to the first injection body 711 inside the cover part 4 . Through the coupling between the second injection body 712 and the first injection body 711 , the injection body 71 may be coupled to the cover part 4 . The second injection body 712 and the first injection body 711 may be coupled using an injection coupling member 713 (shown in FIGS. 9 and 10) such as a bolt. The second injection body 712 may include a second injection flange 712a. The second injection flange 712a may be supported on the inner surface of the cover part 4 inside the cover part 4 .

The injection opening/closing member 72 is rotatably coupled to the injection body 71 . The injection opening/closing member 72 may selectively open and close the injection hole 43 while rotating about the injection rotation shaft 72a (shown in FIGS. 9 and 10). The injection opening/closing member 72 may be rotatably coupled to the injection body 71 through an injection shaft 721 (shown in FIGS. 9 and 10 ) serving as the injection rotation shaft 72a. The injection opening/closing member 72 may open and close the injection hole 43 by opening and closing the injection connection hole 70 .

11 , the injection opening/closing member 72 may rotate to open the injection hole 43 by the pressure of the cooling gas supplied from the supply unit 5 . In this case, the injection opening/closing member 72 may open the injection connection hole 70 by being rotated by being pushed by the pressure of the cooling gas supplied by the supply unit 5 . Accordingly, the cooling gas supplied by the supply unit 5 is supplied to the inside of the opening/closing unit 4 , so that it can be used to adjust the temperature of the temperature control area TA.

12, the injection opening/closing member 72 may rotate to close the injection hole 43 by its own weight. In this case, as the supply unit 5 stops the supply of the cooling gas, the injection opening/closing member 72 rotates under its own weight to close the injection connection hole 70 . Accordingly, the injection opening/closing member 72 may block the internal gas existing inside the cover part 4 from being discharged to the outside of the cover part 4 through the injection hole 43 . Even if the supply unit 5 supplies the cooling gas, if the pressure of the cooling gas supplied by the supply unit 5 is smaller than the weight of the injection opening/closing member 72, the injection opening/closing member 72 is The injection hole 43 may be rotated to close it.

9 and 10, the injection opening/closing member 72 is shown to be formed in a rectangular plate shape as a whole, but it is not limited thereto, and if the injection hole 43 can be selectively opened and closed, it may be formed in another shape such as a disc shape. may be

The injection opening/closing member 72 may be disposed above the injection body 71 . Accordingly, the injection opening/closing member 72 may rotate to close the injection hole 43 by its own weight. In this case, the injection opening/closing part 7 may be coupled to the cover part 4 so as to be disposed vertically downward with respect to the barrel 210 (shown in FIG. 8 ). Accordingly, in the temperature control device 1 for an injection molding machine according to the present invention, a gap between the injection opening/closing member 72 and the injection body 71 after the injection opening/closing member 72 is rotated by its own weight It can be implemented so that this does not occur. Accordingly, the temperature control device 1 for an injection molding machine according to the present invention can strengthen the sealing force using the weight of the injection opening/closing member 72 .

The injection opening/closing part 7 may include an injection limiting member 73 .

The injection limiting member 73 limits the angle at which the injection opening/closing member 72 can rotate in an opening direction for opening the injection hole 43 . The injection restriction member 73 may protrude from the injection body 71 . The injection limiting member 73 may protrude from the injection body 71 so as to be disposed toward the opening direction of the injection opening/closing member 72 . Accordingly, as shown in FIG. 11 , when the injection opening/closing member 72 reaches a predetermined angle in the opening direction, the injection limiting member 73 may support the injection opening/closing member 72 . Accordingly, the injection opening/closing member 72 is prevented from rotating any more in the opening direction by the injection limiting member 73 . Accordingly, the injection limiting member 73 rotates in the opening direction to an angle at which the injection opening/closing member 72 cannot rotate in the direction of closing the injection hole 43 due to its own weight. can be prevented The injection restriction member 73 may be coupled to the second injection body 712 to protrude from the second injection body 712 . The injection restriction member 73 and the second injection body 712 may be integrally formed.

Referring to FIG. 13 , the injection opening/closing part 7 may include an injection elastic member 74 .

The injection elastic member 74 elastically presses the injection opening/closing member 72 in the direction of closing the injection hole 43 . When the supply unit 5 stops the supply of the cooling gas, the injection opening/closing member 72 may close the injection connection hole 70 by rotating by the elastic force of the injection elastic member 74 . Accordingly, the injection opening/closing member 72 may block the internal gas existing inside the cover part 4 from being discharged to the outside of the cover part 4 through the injection hole 43 . Even when the supply unit 5 supplies the cooling gas, if the pressure of the cooling gas supplied by the supply unit 5 is smaller than the elastic force of the injection elastic member 74, the injection opening/closing member 72 is The injection hole 43 may be rotated to close it.

The injection elastic member 74 may be disposed between the injection limiting member 73 and the injection opening/closing member 72 . In this case, the injection pressure member 722 may be coupled to the injection opening/closing member 72 . The injection pressure member 722 may protrude from the injection opening/closing member 72 so that the injection pressure member 722 and the injection restriction member 73 are disposed to face each other. 13, when the injection opening/closing member 72 rotates to open the injection hole 43 as shown by a dotted line in FIG. 13, the injection pressure member 722 rotates together with the injection opening and closing member 72, It can be compressed by pressing the injection elastic member (74). In this state, when the pressure of the cooling gas supplied by the supply unit 5 decreases or disappears, the injection elastic member 74 may be rotated by pushing the injection pressure member 722 while being tensioned. Accordingly, as shown by a solid line in FIG. 13 , the injection opening/closing member 72 may rotate together with the injection pressing member 722 to close the injection hole 43 . The injection elastic member 74 may be implemented as a coil spring.

Although not shown, the injection elastic member 74 may be implemented as a torsion spring. In this case, the injection elastic member 74 may be coupled to the injection shaft 721 (shown in FIGS. 9 and 10). When the injection opening/closing member 72 rotates to open the injection hole 43 , the injection elastic member 74 may have elastic force while twisting. In this state, when the pressure of the cooling gas supplied by the supply unit 5 is weakened or disappears, the injection elastic member 74 may rotate by pushing the injection opening/closing member 72 while releasing the torsion. Accordingly, the injection opening/closing member 72 may close the injection hole 43 .

As described above, when the injection opening/closing part 7 is implemented to include the injection elastic member 74 , the temperature control device 1 for an injection molding machine according to the present invention is the weight of the injection opening/closing member 72 . ) and the elastic force of the injection elastic member 74 may be used to rotate the injection opening/closing member 72 so that the injection opening/closing member 72 closes the injection hole 43 . Accordingly, the temperature control device 1 for an injection molding machine according to the present invention can shorten the time it takes to close the injection hole 43 and close the injection hole 43 with a stronger sealing force. In addition, in the temperature control device 1 for an injection molding machine according to the present invention, even if the injection opening/closing part 7 is not disposed vertically below the barrel 210 (shown in FIG. 8), the injection elastic member 74 is The injection hole 43 may be closed by smoothly rotating the injection opening/closing member 72 using an elastic force. Accordingly, the temperature control device 1 for an injection molding machine according to the present invention can improve the variety and ease of arrangement with respect to the injection opening/closing part 7 .

Referring to FIGS. 8 and 14 to 17 , the temperature control device 1 for an injection molding machine according to the present invention may include a discharge opening/closing unit 8 .

The discharge opening/closing part 8 selectively opens and closes the discharge hole 44 . According to the internal pressure of the cover part 4 , the discharge opening/closing part 8 may selectively open and close the discharge hole 44 . When the supply unit 5 supplies the cooling gas, the internal pressure of the cover unit 4 may increase. When the supply unit 5 stops the supply of the cooling gas, the internal pressure of the cover unit 4 may be maintained or decreased without change. When the internal pressure of the cover part 4 increases, the exhaust opening/closing part 8 may open the exhaust hole 44 as shown in FIG. 16 . Accordingly, the internal gas existing inside the cover part 4 may be discharged to the outside of the cover part 4 through the discharge hole 44 . When the internal pressure of the cover part 4 decreases in this state, the exhaust opening/closing part 8 may close the exhaust hole 44 as shown in FIG. 17 . Accordingly, the discharge opening/closing unit 8 may block the internal gas located inside the cover unit 4 from being discharged through the discharge hole 44 .

Therefore, the temperature control device 1 for an injection molding machine according to the present invention is implemented so that the discharge opening/closing unit 8 selectively opens and closes the discharge hole 44 automatically according to the internal pressure of the cover unit 4 . can Accordingly, the temperature control device 1 for an injection molding machine according to the present invention can further improve the easiness and accuracy of the operation of adjusting the molding material to a preset temperature.

The discharge opening/closing part 8 may include a discharge body 81 and a discharge opening/closing member 82 .

The discharge body 81 is coupled to the cover portion 4 so as to be inserted into the discharge hole 44 . The discharge body 81 may be coupled to the cover member 41 . A discharge connection hole 80 may be formed in the discharge body 81 . The discharge connection hole 80 may be formed through the discharge body 81 . 14 and 15 show that the discharge body 81 is formed in a rectangular parallelepiped shape as a whole, but is not limited thereto and may be coupled to the cover part 4 to selectively open and close the discharge hole 44 If it has a shape, it may be formed in another shape such as a cylindrical shape.

The discharging body 81 may include a first discharging body 811 and a second discharging body 812 .

The first discharge body 811 may be inserted into the discharge hole 44 from the inside of the cover part 4 . The first discharge body 811 may include a first discharge flange 811a. The first discharge flange 811a may be supported on the inner surface of the cover part 4 inside the cover part 4 .

The second discharge body 812 may be coupled to the first discharge body 811 from the outside of the cover part 4 . Through the coupling between the second discharge body 812 and the first discharge body 811 , the discharge body 81 may be coupled to the cover part 4 . The second discharge body 812 and the first discharge body 811 may be coupled using a discharge coupling member 813 (shown in FIGS. 14 and 15) such as bolts. The second discharge body 812 may include a second discharge flange 812a. The second discharge flange 812a may be supported on the outer surface of the cover part 4 from the outside of the cover part 4 .

The discharge opening/closing member 82 is rotatably coupled to the discharge body 81 . The discharge opening/closing member 82 may selectively open and close the discharge hole 44 while rotating about the discharge rotation shaft 82a (shown in FIGS. 14 and 15). The discharge opening/closing member 82 may be rotatably coupled to the discharge body 81 through a discharge shaft 821 (shown in FIGS. 14 and 15) functioning as the discharge rotation shaft 82a. The discharge opening/closing member 82 may open and close the discharge hole 44 by opening and closing the discharge connection hole 80 .

As shown in FIG. 16 , the discharge opening/closing member 82 may rotate to open the discharge hole 44 by the internal pressure of the cover part 4 . In this case, the discharge opening/closing member 82 may open the discharge connection hole 80 by being rotated by being pushed by the internal pressure of the cover part 4 . Accordingly, the internal gas existing inside the cover part 4 is discharged to the outside of the cover part 4 , so that the temperature of the temperature control area TA can be adjusted.

17 , the discharge opening/closing member 82 may rotate to close the discharge hole 44 by its own weight. In this case, as the internal pressure of the cover part 4 decreases, the exhaust opening/closing member 82 rotates under its own weight to close the exhaust connection hole 80 . Accordingly, the exhaust opening/closing member 82 may block the internal gas existing inside the cover part 4 from being discharged to the outside of the cover part 4 through the exhaust hole 44 . Even if the supply unit 5 (shown in FIG. 8) stops the supply of the cooling gas or the supply unit 5 (shown in FIG. 8) supplies the cooling gas, the internal pressure of the cover part 4 is When it is smaller than the weight of the discharge opening/closing member 82 , the discharge opening/closing member 82 may rotate to close the discharge hole 44 .

14 and 15, the discharge opening/closing member 82 is shown to be formed in a rectangular plate shape as a whole, but it is not limited thereto, and if it is a shape that can selectively open and close the discharge hole 44, it may be formed in another shape such as a disc shape. may be

The discharge opening/closing member 82 may be disposed above the discharge body 81 . Accordingly, the discharge opening/closing member 82 may rotate to close the discharge hole 44 by its own weight. In this case, the discharge opening/closing part 8 may be coupled to the cover part 4 so as to be disposed vertically upward with respect to the barrel 210 (shown in FIG. 8 ). Accordingly, in the temperature control device 1 for an injection molding machine according to the present invention, a gap between the discharge opening/closing member 82 and the discharge body 81 after the discharge opening/closing member 82 rotates by its own weight It can be implemented so that this does not occur. Accordingly, the temperature control device 1 for an injection molding machine according to the present invention can strengthen the sealing force using the weight of the discharge opening/closing member 82 .

The discharge opening/closing part 8 may include a discharge limiting member 83 .

The discharge limiting member 83 limits the angle at which the discharge opening/closing member 82 can rotate in an opening direction for opening the discharge hole 44 . The discharge limiting member 83 may protrude from the discharge body 81 . The discharge limiting member 83 may protrude from the discharge body 81 so as to be disposed toward the opening direction of the discharge opening/closing member 82 . Accordingly, as shown in FIG. 16 , when the discharge opening/closing member 82 reaches a predetermined angle in the opening direction, the discharge limiting member 83 may support the discharge opening/closing member 82 . Accordingly, the discharge opening/closing member 82 is prevented from rotating any more in the opening direction by the discharge limiting member 83 . Accordingly, the discharge limiting member 83 rotates in the opening direction to an angle at which the discharge opening/closing member 82 cannot rotate in the direction of closing the discharge hole 44 due to its own weight. can be prevented The discharge limiting member 83 may be coupled to the second discharge body 812 so as to protrude from the second discharge body 812 . The discharge limiting member 83 and the second discharge body 812 may be integrally formed.

Referring to FIG. 18 , the discharge opening/closing part 8 may include a discharge elastic member 84 .

The discharge elastic member 84 elastically presses the discharge opening/closing member 82 in the direction of closing the discharge hole 44 . When the internal pressure of the cover part 4 decreases, the discharge opening/closing member 82 may close the discharge connection hole 80 by rotating by the elastic force of the discharge elastic member 84 . Accordingly, the exhaust opening/closing member 82 may block the internal gas existing inside the cover part 4 from being discharged to the outside of the cover part 4 through the exhaust hole 44 .

The discharge elastic member 84 may be disposed between the discharge limiting member 83 and the discharge opening/closing member 82 . In this case, the discharge pressing member 822 may be coupled to the discharge opening/closing member 82 . The discharge pressure member 822 may protrude from the discharge opening/closing member 82 so that the discharge pressure member 822 and the discharge restriction member 83 are disposed to face each other. When the discharge opening/closing member 82 rotates to open the discharge hole 44 as shown by a dotted line in FIG. 18, the discharge pressing member 822 rotates together with the discharge opening/closing member 82. It can be compressed by pressing the discharge elastic member (84). In this state, when the internal pressure of the cover part 4 decreases, the discharge elastic member 84 may be rotated by pushing the discharge pressing member 822 while being tensioned. Accordingly, as shown by a solid line in FIG. 18 , the discharge opening/closing member 82 may rotate together with the discharge pressing member 822 to close the discharge hole 44 . The discharge elastic member 84 may be implemented as a coil spring.

Although not shown, the discharge elastic member 84 may be implemented as a torsion spring. In this case, the discharge elastic member 84 may be coupled to the discharge shaft 821 (shown in FIGS. 14 and 15). When the discharge opening/closing member 82 rotates to open the discharge hole 44 , the discharge elastic member 84 may have elastic force while twisting. In this state, when the internal pressure of the cover part 4 is reduced, the discharge elastic member 84 may be rotated by pushing the discharge opening/closing member 82 while the torsion is released. Accordingly, the discharge opening/closing member 82 may close the discharge hole 44 .

As described above, when the discharge opening/closing unit 8 is implemented to include the discharge elastic member 84 , the temperature control device 1 for an injection molding machine according to the present invention is the weight of the discharge opening/closing member 82 . ) and the elastic force of the discharge elastic member 84 may be used to rotate the discharge opening/closing member 82 so that the discharge opening/closing member 82 closes the discharge hole 44 . Accordingly, the temperature control device 1 for an injection molding machine according to the present invention can shorten the time it takes to close the discharge hole 44, and can close the discharge hole 44 with a stronger sealing force. In addition, in the temperature control device 1 for an injection molding machine according to the present invention, even if the discharge opening/closing part 8 is not disposed vertically above the barrel 210 (shown in FIG. 8), the discharge elastic member 84 is The discharge hole 44 may be closed by smoothly rotating the discharge opening/closing member 82 using an elastic force. Accordingly, the temperature control device 1 for an injection molding machine according to the present invention can improve the variety and ease of arrangement with respect to the discharge opening/closing part 8 .

Here, the temperature control device 1 for an injection molding machine according to the present invention may be implemented to include any one of the injection opening/closing unit 7 and the discharge opening/closing unit 8 . The temperature control device 1 for an injection molding machine according to the present invention may be implemented to include both the injection opening/closing unit 7 and the discharge opening/closing unit 8 .

19 to 21 , the temperature control device 1 for an injection molding machine according to a modified embodiment of the present invention may be implemented as follows.

The heating unit 2 may include a plurality of heating members 21 (shown in FIG. 19 ). The heating members 21 may be coupled to the barrel 210 to be disposed at different positions along the first axial direction (X-axis direction). Accordingly, the heating members 21 may heat different portions of the barrel 210 . The heating members 21 may be disposed to be spaced apart from each other in the first axial direction (X-axis direction).

The partition part 3 may be implemented such that the partition members 31 partition a plurality of temperature control areas TA. The partition members 31 may be coupled to the barrel 210 to be spaced apart from each other in the first axial direction (X-axis direction). The temperature control areas TA may be disposed between the two partition members 31 based on the first axial direction (X-axis direction). The temperature control areas TA may be disposed between the outer surface of the barrel 210 and the inner surface of the cover part 4 . The heating members 21 may be coupled to the barrel 210 to be disposed in each of the temperature control areas TA. At least one heating member 21 may be disposed in each of the temperature control areas TA. The heating members 21 may heat the barrel 210 to a different temperature for each part belonging to each of the temperature control areas TA so that the temperature control areas TA are adjusted to different temperatures. Accordingly, the heating members 21 may heat the molding material to different temperatures according to the distance the molding material moves from the inside of the barrel 210 toward the front (FD arrow direction).

The cover part 4 may include a plurality of the cover members 41 . The cover members 41 are disposed to individually surround the temperature control areas TA. Accordingly, in contrast to the embodiment implemented to surround the barrel 210 with one cover member 41, the temperature control device 1 for an injection molding machine according to a modified embodiment of the present invention operates as follows. effect can be achieved.

First, the temperature control device 1 for an injection molding machine according to a modified embodiment of the present invention can reduce the relative length of each of the cover members 41 with respect to the barrel 210 . Accordingly, the temperature control device 1 for an injection molding machine according to a modified embodiment of the present invention performs an operation of mounting the cover members 41 to the barrel 210 and attaching the cover members 41 to the barrel 210 . ) can improve the ease of separation from

Second, the temperature control device 1 for an injection molding machine according to a modified embodiment of the present invention may be implemented such that the cover members 41 are individually mounted and separated from the barrel 210 . Accordingly, in the temperature control device 1 for an injection molding machine according to a modified embodiment of the present invention, only the cover member 41 that needs repair, replacement, etc. can be individually separated and mounted with respect to the barrel 210. , it is possible to improve the ease of maintenance work for the cover members (41). In addition, since the temperature control device 1 for an injection molding machine according to a modified embodiment of the present invention can shorten the time taken for maintenance work for the cover members 41, productivity of the injection product through increased operation rate can contribute to increasing

The cover members 41 may be formed to have the same length with respect to the first axial direction (X-axis direction). In this case, the partition members 31 may be coupled to the barrel 210 to be spaced apart from each other at the same distance along the first axial direction (X-axis direction). Accordingly, the temperature control areas TA may be implemented to have the same length with respect to the first axial direction (X-axis direction).

The cover members 41 may be formed to have different lengths based on the first axial direction (X-axis direction). In this case, the partition members 31 may be coupled to the barrel 210 to be spaced apart from each other at different intervals along the first axial direction (X-axis direction). Accordingly, the temperature control areas TA may be implemented to have different lengths based on the first axial direction (X-axis direction).

The supply unit 5 may include a plurality of supply mechanisms 51 . The supply mechanisms 51 may individually supply cooling gas to the temperature control areas TA. Accordingly, the temperature control device 1 for an injection molding machine according to a modified embodiment of the present invention uses the heating members 21 and the supply mechanisms 51 to obtain the temperature of each of the temperature control areas TA. can be adjusted individually. Accordingly, the temperature control device 1 for an injection molding machine according to a modified embodiment of the present invention controls the molding material according to the distance the molding material moves from the inside of the barrel 210 toward the front (FD arrow direction) to a predetermined setting. It can improve the accuracy of temperature control operation. Each of the supply mechanisms 51 may include a fan for flowing the cooling gas.

The connection part 6 may include a plurality of connection mechanisms 61 . One side of the connection mechanisms 61 may be connected to the supply mechanisms 51 and the other side may be connected to the cover members 41 . The connection mechanisms 61 may be connected so that the other side communicates with each of the temperature control areas TA. Accordingly, the connection mechanisms 61 may inject the cooling gas supplied by the supply mechanisms 51 into each of the temperature control areas TA.

The temperature control device 1 according to a modified embodiment of the present invention may include a plurality of the injection opening and closing parts 7 (shown in FIG. 21 ).

The injection opening/closing parts 7 may be coupled to each of the cover members 41 . In this case, the injection hole 43 (shown in FIG. 8 ) may be formed in each of the cover members 41 . The connection mechanisms 61 may be connected to communicate with each of the temperature control areas TA through the injection opening/closing parts 7 . The injection opening/closing parts 7 may individually open and close injection holes 43 (shown in FIG. 8 ) formed in each of the cover members 41 according to the pressure of the cooling gas supplied by each of the supply mechanisms 51 . can Accordingly, the temperature control device 1 according to the modified embodiment of the present invention is implemented to individually control the temperature of each of the temperature control areas TA.

The injection opening/closing parts 7 may be respectively disposed at positions spaced apart from both ends of the temperature control area TA by the same distance with respect to the first axial direction (X-axis direction). In this case, the injection opening/closing parts 7 may be respectively disposed at an intermediate point (CP, shown in FIG. 21 ) of the temperature control area TA with respect to the first axial direction (X-axis direction). Accordingly, the cooling gas may be injected to the midpoint CP of the temperature control areas TA based on the first axial direction (X-axis direction) through the injection opening and closing parts 7 , so that the temperature control Each of the areas TA may be controlled to have a uniform temperature as a whole.

The temperature control device 1 according to a modified embodiment of the present invention may include a plurality of the discharge opening/closing part 8 (shown in FIG. 21 ).

The discharge opening/closing parts 8 may be coupled to each of the cover members 41 . In this case, the discharge hole 44 (shown in FIG. 8 ) may be formed in each of the cover members 41 . The discharge opening/closing parts 8 may individually open and close the discharge holes 44 (shown in FIG. 8 ) formed in each of the cover members 41 according to the pressure of each of the temperature control areas TA. Accordingly, the temperature control device 1 according to the modified embodiment of the present invention is implemented to individually control the temperature of each of the temperature control areas TA.

A plurality of the discharge opening/closing parts 8 may be coupled to each of the cover members 41 . In this case, in each of the cover members 41, the discharge opening/closing parts 8 and 8' (shown in FIG. 21) are disposed at positions spaced apart from each other with respect to the first axial direction (X-axis direction). can be In FIG. 21 , the exhaust opening/closing part 8 is shown to be coupled to each of the cover members 41 by two, but the present invention is not limited thereto. Each of the cover members 41 includes three exhaust opening/closing parts 8 . More than one may be combined. A different number of discharge opening/closing parts 8 may be coupled to the cover members 41 .

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and it is common in the technical field to which the present invention pertains that various substitutions, modifications, and changes are possible without departing from the technical spirit of the present invention. It will be clear to those who have the knowledge of

1: Temperature control device for injection molding machine
2: heating part 3: partition part
4: cover part 5: supply part
6: connection part 7: injection opening and closing part
8: exhaust opening and closing part 21: heating member
31: partition member 41: cover member
42: support member 43: injection hole
44: discharge hole 51: supply mechanism
61: connection mechanism 70: injection connection hole
71: injection body 72: injection opening and closing member
73: injection restriction member 74: injection elastic member
80: discharge connection hole 81: discharge body
82: discharge opening/closing member 83: emission limiting member
84: discharge elastic member

Claims (14)

a heating unit (2) coupled to the barrel (210) for heating the molding material supplied into the barrel (210) of the injection molding machine (100);
a compartment (3) coupled to the barrel (210);
a cover portion (4) coupled to the compartment (3);
a supply unit (5) for supplying cooling gas to the inside of the cover unit (4); and
and an injection opening/closing part 7 for selectively opening and closing the injection hole 43 formed in the cover part 4 according to the pressure of the cooling gas supplied by the supply part 5,
The injection opening/closing unit 7 includes an injection body 71 coupled to the cover 4 so as to be inserted into the injection hole 43, an injection opening/closing member 72 rotatably coupled to the injection body 71, and an injection limiting member 73 protruding from the injection body 71 to limit the angle at which the injection opening/closing member 72 is rotatable in a direction for opening the injection hole 43,
The injection opening/closing member 72 is pushed and rotated by the pressure of the cooling gas supplied by the supply unit 5 to open the injection hole 43 and rotate the injection hole 43 by its own weight. A temperature control device for an injection molding machine, characterized in that it is closed. According to claim 1,
Injection molding, characterized in that it includes a connection part (6) connected to each of the supply part (5) and the cover part (4) so that the cooling gas supplied by the supply part (5) is injected into the inside of the cover part (4). Air temperature controller. delete According to claim 1,
The injection opening/closing part (7) is coupled to the cover part (4) so as to be disposed vertically downward with respect to the barrel (210). According to claim 1,
The injection opening/closing member (72) is disposed above the injection body (71) to close the injection hole (43) by its own weight. According to claim 1,
The injection opening/closing unit 7 includes an injection elastic member 74 for elastically pressing the injection opening/closing member 72 in a direction in which the injection opening/closing member 72 closes the injection hole 43. Temperature control device for injection molding machine. delete According to claim 1,
and a discharge opening/closing part 8 for selectively opening and closing the discharge hole 44 formed in the cover part 4,
The discharge opening/closing part 8 includes a discharge body 81 coupled to the cover 4 so as to be inserted into the discharge hole 44, and a discharge opening/closing member 82 rotatably coupled to the discharge body 81. includes,
The discharge opening/closing member 82 rotates to open the discharge hole 44 by the internal pressure of the cover part 4, and rotates to close the discharge hole 44 by its own weight. Temperature control device for injection molding machine, characterized in that. 9. The method of claim 8,
The discharge opening/closing part 8 is coupled to the cover part 4 so as to be disposed vertically upward with respect to the barrel 210,
The discharge opening/closing member (82) is disposed above the discharge body (81) to close the discharge hole (44) by its own weight. a heating unit (2) coupled to the barrel (210) for heating the molding material supplied into the barrel (210) of the injection molding machine (100);
a compartment (3) coupled to the barrel (210);
a cover portion (4) coupled to the compartment (3);
a supply unit (5) for supplying cooling gas to the inside of the cover unit (4); and
and a discharge opening/closing part 8 for selectively opening and closing the discharge hole 44 formed in the cover part 4 according to the internal pressure of the cover part 4,
The discharge opening/closing unit 8 includes a discharge body 81 coupled to the cover 4 so as to be inserted into the discharge hole 44, a discharge opening/closing member 82 rotatably coupled to the discharge body 81, and a discharge limiting member 83 protruding from the discharge body 81 so that the discharge opening/closing member 82 limits a rotatable angle in a direction for opening the discharge hole 44,
The discharge opening/closing member 82 is pushed and rotated by the internal pressure of the cover part 4 to open the discharge hole 44, and as the internal pressure of the cover part 4 is reduced, it loses its own weight. A temperature control device for an injection molding machine, characterized in that it closes the discharge hole (44) by being rotated by the 11. The method of claim 10,
Injection molding, characterized in that it includes a connection part (6) connected to each of the supply part (5) and the cover part (4) so that the cooling gas supplied by the supply part (5) is injected into the inside of the cover part (4). Air temperature controller. delete 11. The method of claim 10,
The discharge opening/closing unit 8 includes a discharge elastic member 84 that elastically presses the discharge opening/closing member 82 in a direction in which the discharge opening/closing member 82 closes the discharge hole 44. Temperature control device for injection molding machine. delete

Images