Injection mold convenient for heat dissipation

Abstract

The utility model relates to the field of injection mold processing, in particular to an injection mold convenient for heat dissipation. The technical problem to be solved by the utility model is to provide the injection mold convenient for heat dissipation, which can better cool and dissipate heat in the processing process of the injection mold. The injection mold comprises a base, a main body bracket, a fixed mold, a movable mold, a water tank, a ball valve pipe, a ball valve body and the like, a main body support is fixedly connected to the base, a fixed mold is fixedly connected to the main body support, a movable mold is slidably connected to the main body support, a water tank is fixedly connected to the base, one end of a ball valve pipe is communicated to the water tank, and the other end of the ball valve pipe is communicated to the inner bottom of the fixed mold. The movable wheel is driven by the clamping plate to move outwards, so that the clamping plate does not limit the water pressing piston rod any more, the water pressing piston rod compresses cooling liquid in the water injection piston barrel to enter the inner bottom of the fixed mold through the water inlet pipe, and the cooling liquid can cool the fixed mold.

Description

Technical Field

[0001] The utility model relates to the field of injection mold processing, in particular to an injection mold which is convenient for heat dissipation. Background Art

[0002] Injection molding is a processing method used in the mass production of certain parts with complex shapes. The heated and melted plastic raw materials are pushed by the injection molding machine screw at high pressure into the mold cavity of the plastic mold. During the injection molding process, the plastic temperature is very high. If it is not cooled and dissipated, it may affect the injection molding effect of the mold. During the processing of existing injection molds, it is difficult for the staff to dissipate the heat of the mold. It is necessary to wait until the cavity is completely filled before cooling and dissipating it, which may result in poor injection molding effect. Utility Model Content

[0003] In order to solve the problems existing in the existing injection molds mentioned in the above background technology, the utility model provides an injection mold which is convenient for heat dissipation and can better cool and dissipate heat in the injection mold during the processing.

[0004] The invention discloses an injection mold which is convenient for heat dissipation, comprising a base, a main body support, a fixed mold, a movable mold, a water tank, a ball valve tube, a ball valve body, a water injection piston cylinder, a one-way valve, a water inlet pipe and a water pressure piston rod. The base is fixedly connected with the main body support, the main body support is fixedly connected with the fixed mold, the movable mold is slidably connected with the main body support, the water tank is fixedly connected with the base, one end of the ball valve tube is connected with the water tank, the other end of the ball valve tube is connected with the bottom of the fixed mold, the ball valve body is rotatably connected with the ball valve tube, the water injection piston cylinder is fixedly connected with the water tank, the lower side wall of the water injection piston cylinder is connected with two one-way valves, one of which is connected with the water inlet pipe, the other end of the water inlet pipe is connected with the bottom of the fixed mold, the water injection piston cylinder is slidably connected with the water pressure piston rod, and the inner side wall of the water pressure piston rod has two sliding grooves symmetrically opened.

[0005] Optionally, it also includes a push rod, a pressure spring, a slot plate, a thrust piston cylinder, a thrust piston rod, a clip plate and a movable wheel, one end of the push rod is slidably connected in the water pressure piston rod, the other end of the push rod is fixedly connected to the movable mold, one end of the pressure spring is fixedly connected to the top of the push rod, the other end of the pressure spring is fixedly connected to the inner bottom of the water pressure piston rod, the slot plate is fixedly connected to the upper side wall of the water pressure piston rod, a groove is opened on the slot plate, the thrust piston cylinder is fixedly connected to the fixed mold, a certain amount of kerosene is filled in the thrust piston cylinder, the thrust piston rod is slidably connected in the thrust piston cylinder, the left end of the thrust piston rod is fixedly connected to the clip plate, and the movable wheel is rotatably connected to the clip plate.

[0006] Optionally, a rack and a gear are also included, the rack is fixedly connected to the side wall of the movable mold, and one end of the ball valve body is fixedly connected to the gear.

[0007] Optionally, a heat sink is also included, and each of the three side walls of the water tank is fixedly connected with a heat sink.

[0008] Optionally, the rack meshes with the gear.

[0009] The beneficial effects of the utility model are as follows: the rack is driven downward by the movable mold, and when the rack moves downward, it meshes and rotates with the gear. When the bottom of the movable mold cooperates with the fixed mold, the gear just drives the ball valve body to rotate ninety degrees, so that the ball valve body can block the ball valve tube, and the thrust piston rod and the clamping plate are pushed outward by the thermal expansion of the kerosene, and the clamping plate drives the movable wheel to move outward, so that the clamping plate no longer limits the water pressure piston rod, and the coolant in the water injection piston cylinder is compressed by the water pressure piston rod and enters the inner bottom of the fixed mold through the water inlet pipe, so that the coolant can cool the fixed mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the first three-dimensional structure of the utility model.

[0011] Figure 2 This is a schematic diagram of the second three-dimensional structure of the utility model.

[0012] Figure 3 This is a schematic diagram of a first sectional three-dimensional structure of the utility model.

[0013] Figure 4 This is a schematic diagram of a second sectional three-dimensional structure of the utility model.

[0014] Figure 5 It is an enlarged three-dimensional structural schematic diagram of A of the present utility model.

[0015] Figure 6 It is an enlarged three-dimensional structural schematic diagram of B of the present utility model.

[0016] Figure 7 This is a schematic diagram of the first partially separated three-dimensional structure of the utility model.

[0017] Figure 8 This is a schematic diagram of a second partially separated three-dimensional structure of the utility model.

[0018] Markings in the accompanying drawings: 1: base, 2: main bracket, 3: fixed mold, 4: movable mold, 5: water tank, 6: ball valve tube, 7: ball valve body, 8: water injection piston cylinder, 9: one-way valve, 10: water inlet pipe, 11: water pressure piston rod, 12: push rod, 13: pressure spring, 14: slot plate, 15: thrust piston cylinder, 16: thrust piston rod, 17: clamping plate, 18: rack, 19: gear, 20: movable wheel, 21: heat sink. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.

[0020] Example 1

[0021] An injection mold that facilitates heat dissipation, such as Figure 1-8 As shown, it includes a base 1, a main body support 2, a fixed mold 3, a movable mold 4, a water tank 5, a ball valve tube 6, a ball valve body 7, a water injection piston cylinder 8, a one-way valve 9, a water inlet pipe 10 and a water pressure piston rod 11. The main body support 2 is fixedly connected to the base 1, the fixed mold 3 is fixedly connected to the main body support 2, the movable mold 4 is slidably connected to the main body support 2, the movable mold 4 is located above the fixed mold 3, the water tank 5 is fixedly connected to the base 1, the water tank 5 is located below the fixed mold 3, one end of the ball valve tube 6 is connected to the water tank 5, and the other end of the ball valve tube 6 is connected to the bottom of the fixed mold 3, and the ball valve body 7 is rotated. The water injection piston cylinder 8 is connected to the water tank 5 in a dynamic manner, and the ball valve tube 6 is used to control the coolant to flow back into the water tank 5 through the ball valve body 7. The water injection piston cylinder 8 is fixedly connected to the water tank 5. The lower side wall of the water injection piston cylinder 8 is connected to two one-way valves 9, one of which is connected to a water inlet pipe 10, and the other end of the water inlet pipe 10 is connected to the bottom of the fixed mold 3. A water pressure piston rod 11 is slidably connected to the water injection piston cylinder 8. The water pressure piston rod 11 is used to compress the coolant so that the coolant can enter the bottom of the fixed mold 3 through the water inlet pipe 10, and the inner side wall of the water pressure piston rod 11 has two chute symmetrically opened.

[0022] Example 2

[0023] On the basis of Example 1, Figure 1-8 As shown, it also includes a push rod 12, a pressure spring 13, a slot plate 14, a thrust piston cylinder 15, a thrust piston rod 16, a card plate 17 and a movable wheel 20. One end of the push rod 12 is slidably connected to the water pressure piston rod 11 through a slide groove on the inner side wall of the water pressure piston rod 11, and the other end of the push rod 12 is fixedly connected to the movable mold 4. One end of the pressure spring 13 is fixedly connected to the top of the push rod 12, and the other end of the pressure spring 13 is fixedly connected to the inner bottom of the water pressure piston rod 11. The pressure spring 13 is used to To adjust the up and down movement of the water pressure piston rod 11, the slot plate 14 is fixedly connected to the upper side wall of the water pressure piston rod 11, and a groove is formed on the slot plate 14. The thrust piston cylinder 15 is fixedly connected to the fixed mold 3. A certain amount of kerosene is filled in the thrust piston cylinder 15. A thrust piston rod 16 is slidably connected in the thrust piston cylinder 15. A clamping plate 17 is fixedly connected to the left end of the thrust piston rod 16. A movable wheel 20 is rotatably connected to the clamping plate 17. The clamping plate 17 is used to limit the water pressure piston rod 11.

[0024] It also includes a rack 18 and a gear 19. The rack 18 is fixedly connected to the side wall of the movable mold 4, and one end of the ball valve body 7 is fixedly connected to the gear 19. The gear 19 can drive the ball valve body 7 to rotate.

[0025] The water tank 5 also includes a heat sink 21 . Three side walls of the water tank 5 are fixedly connected with a heat sink 21 . The heat sink 21 can dissipate heat and cool the coolant in the water tank 5 .

[0026] Usage: When the injection mold is needed for injection molding, the coolant in the water tank 5 will enter the water injection piston cylinder 8 through the two one-way valves 9 on the lower side wall of the water injection piston cylinder 8. The staff presses the movable mold 4 to move downward on the main support 2, and the movable mold 4 will drive the push rod 12 to move downward on the slide groove in the water pressure piston rod 11. The downward movement of the push rod 12 will compress the pressure spring 13. At the same time, the movable mold 4 will also drive the rack 18 to move downward. When the rack 18 moves downward, it will mesh and rotate with the gear 19. When the bottom of the movable mold 4 cooperates with the fixed mold 3, the gear 19 just drives the ball valve body 7 to rotate ninety degrees, so that the ball valve body 7 can block the ball valve tube 6, and then the worker The operator adds injection plastic into the fixed mold 3 and starts to inject the mold. A certain amount of heat will be generated during the injection molding. The heat will be transferred to the kerosene in the thrust piston rod 16 through heat transfer. The kerosene will expand due to heat and push the thrust piston rod 16 to move outward. The thrust piston rod 16 will drive the card plate 17 to move outward, and the card plate 17 will drive the movable wheel 20 to move outward, so that the card plate 17 will no longer limit the water pressure piston rod 11. The water pressure piston rod 11 will move downward under the action of the pressure spring 13. The water pressure piston rod 11 will compress the coolant in the water injection piston cylinder 8 and enter the inner bottom of the fixed mold 3 through the water inlet pipe 10, so that the coolant can cool the fixed mold 3.

[0027] After the injection molding is completed, the staff pulls the movable mold 4 upward on the main support 2, and the movable mold 4 will drive the push rod 12 to move upward on the slide groove in the water pressure piston rod 11. The upward movement of the push rod 12 will pull the pressure spring 13 upward, and the pressure spring 13 will pull the water pressure piston rod 11 upward to return to the initial position. At the same time, the movable mold 4 will also drive the rack 18 to move upward. When the rack 18 moves upward, it will mesh with the gear 19 and rotate. When the movable mold 4 is pulled to the main support 2 When the top is reached, the gear 19 just drives the ball valve body 7 to rotate and reset, so that the ball valve body 7 and the ball valve tube 6 can be connected, and the coolant at the bottom of the fixed mold 3 can flow back to the water tank 5 through the ball valve body 7 and the ball valve tube 6. After the kerosene in the thrust piston rod 16 is cooled, the staff pushes the thrust piston rod 16 and the card plate 17 to move inward, and the card plate 17 will drive the movable wheel 20 to move inward, so that the card plate 17 can limit the water pressure piston rod 11, and the entire injection mold process is completed.

[0028] The above-mentioned embodiments only express the preferred implementation of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications, improvements and substitutions can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An injection mold that is easy to dissipate heat, characterized by: The invention comprises a base (1), a main body support (2), a fixed mold (3), a movable mold (4), a water tank (5), a ball valve tube (6), a ball valve body (7), a water injection piston cylinder (8), a one-way valve (9), a water inlet pipe (10) and a water pressure piston rod (11). The base (1) is fixedly connected to the main body support (2), the main body support (2) is fixedly connected to the fixed mold (3), the movable mold (4) is slidably connected to the main body support (2), the water tank (5) is fixedly connected to the base (1), and one end of the ball valve tube (6) is connected to the water tank (5). The other end of the ball valve tube (6) is connected to the bottom of the fixed mold (3), the ball valve body (7) is rotatably connected to the ball valve tube (6), the water injection piston cylinder (8) is fixedly connected to the water tank (5), the lower side wall of the water injection piston cylinder (8) is connected to two one-way valves (9), one of the one-way valves (9) is connected to a water inlet pipe (10), the other end of the water inlet pipe (10) is connected to the bottom of the fixed mold (3), the water injection piston cylinder (8) is slidably connected to a water pressure piston rod (11), and the inner side wall of the water pressure piston rod (11) is symmetrically provided with two slide grooves.

2. The heat dissipation injection mold according to claim 1, characterized in that: The invention also comprises a push rod (12), a pressure spring (13), a slot plate (14), a thrust piston cylinder (15), a thrust piston rod (16), a clip plate (17) and a movable wheel (20); one end of the push rod (12) is slidably connected in the water pressure piston rod (11); the other end of the push rod (12) is fixedly connected to the movable mold (4); one end of the pressure spring (13) is fixedly connected to the top of the push rod (12); the other end of the pressure spring (13) is fixedly connected to the water pressure piston rod (11); 1), a slot plate (14) is fixedly connected to the upper side wall of the water pressure piston rod (11), a groove is formed on the slot plate (14), a thrust piston cylinder (15) is fixedly connected to the fixed mold (3), a certain amount of kerosene is filled in the thrust piston cylinder (15), a thrust piston rod (16) is slidably connected in the thrust piston cylinder (15), a card plate (17) is fixedly connected to the left end of the thrust piston rod (16), and a movable wheel (20) is rotatably connected to the card plate (17).

3. The injection mold for heat dissipation according to claim 2, characterized in that: It also includes a rack (18) and a gear (19). The rack (18) is fixedly connected to the side wall of the movable mold (4), and one end of the ball valve body (7) is fixedly connected to the gear (19).

4. The injection mold for heat dissipation according to claim 3 is characterized in that: It also includes a heat sink (21), and each of the three side walls of the water tank (5) is fixedly connected with a heat sink (21).

5. The injection mold for heat dissipation according to claim 2, characterized in that: The rack (18) meshes with the gear (19).

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