CN213972426U

CN213972426U - Quick thermal cycle temperature control device that moulds plastics

Info

Publication number: CN213972426U
Application number: CN202022749354.XU
Authority: CN
Inventors: 周茂忠; 沈斌
Original assignee: Zhejiang Teng Feng Hardware Plastic Co ltd
Current assignee: Zhejiang Teng Feng Hardware Plastic Co ltd
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-08-17
Anticipated expiration: 2030-11-24

Abstract

The utility model relates to a quick thermal cycle temperature control device that moulds plastics, it includes the hydrologic cycle module, the hydrologic cycle module includes many sets up in the outside cooling tube of first mould, sets up respectively in the inlet tube and the outlet pipe at cooling tube both ends, is used for the water pump that the inlet tube carried water, and the cooling tube evenly sets up along first mould lateral wall circumference. The temperature control device also comprises a driving module for driving the cooling pipe to move towards or away from the cavity along the accommodating groove. The cooling device has the effect of enabling molten plastic in the cavity between the first die and the second die to be cooled uniformly.

Description

Quick thermal cycle temperature control device that moulds plastics

Technical Field

The application relates to the field of molds, in particular to a rapid thermal cycle injection molding temperature control device.

Background

The cooling system of the injection mold plays a very important role in the design of the injection mold, and is the key for improving the quality of injection products and improving the injection molding efficiency.

At present, a mold for manufacturing a syringe, as shown in fig. 2, includes a first mold 1 and a second mold 2, the first mold 1 includes a first column 11 and a first bottom plate 12 disposed at the bottom of the first column 11, the second mold 2 includes a second column 21 and a second bottom plate 22 disposed at the bottom of the second column 21, and both the first column 11 and the second column 21 are cylindrical. One side of the first column 11 facing the second column 21 is provided with a groove 111, and the second column 21 is inserted into the groove 111. The top of the first column 11 is provided with a feed inlet 112, and the first base plate 12 and the second base plate 22 are tightly attached, so that a space between the first column 11 and the second column 21 forms a cavity in the shape of a syringe. During injection molding, molten plastic enters the mold cavity from the feed port 112 and fills the mold cavity.

In the related art, the inventor thinks that the defect of uneven cooling of the plastic in the cavity exists due to the long length of the cavity.

SUMMERY OF THE UTILITY MODEL

In order to make the plastics cooling in the die cavity even, this application provides a quick thermal cycle temperature control device that moulds plastics.

The application provides a quick thermal cycle temperature control device that moulds plastics adopts following technical scheme:

the utility model provides a quick thermal cycle temperature control device that moulds plastics, includes the hydrologic cycle module, the hydrologic cycle module includes many sets up in the outside cooling tube of first mould, sets up respectively in the inlet tube and the outlet pipe at cooling tube both ends and is used for the water pump that the inlet tube carried water, the cooling tube sets up along first mould length direction, and the cooling tube evenly sets up along first mould lateral wall circumference.

Through adopting above-mentioned technical scheme, cooling tube evenly distributed is outside at first mould for the interior fused plastics of die cavity can cool off more evenly.

Optionally, the water circulation module further comprises an upper ring pipe and a lower ring pipe, the tops of the cooling pipes are connected with the upper ring pipe, and the water outlet pipe is connected with the upper ring pipe; the bottom of the cooling pipe is connected with the lower ring pipe, and the water inlet pipe is connected with the lower ring pipe.

By adopting the technical scheme, the whole water circulation can be realized by only one water pump, and the manufacturing cost is saved.

Optionally, the cooling pipe all sets up along vertical, set up the holding tank corresponding with the cooling pipe on the lateral wall of first mould, the cooling pipe sets up in the tank bottom of holding tank.

Through adopting above-mentioned technical scheme for the cooling tube is closer to the die cavity, improves cooling efficiency.

Optionally, the cooling device further comprises a driving module for driving the cooling pipe to move towards or away from the cavity along the accommodating groove, hoses are additionally arranged between the upper ring pipe and the cooling pipe and between the lower ring pipe and the cooling pipe, the top of the cooling pipe is connected with the upper ring pipe through the hose, and the bottom of the cooling pipe is connected with the lower ring pipe through the hose.

By adopting the technical scheme, the cooling pipe can adjust the distance between the cooling pipe and the cavity according to actual needs, so that the cooling speed of the plastic in the cavity is changed.

Optionally, the driving module includes a slider arranged at the bottom of the cooling pipe and a guide for guiding the cooling pipe to move, the slider is trapezoidal, the first mold is provided with a plurality of sliding grooves, the cross-sectional shapes of the sliding grooves correspond to the slider, and the axes of the sliding grooves in the length direction point to the axis of the first mold; the sliding block is in sliding fit with the sliding groove.

Through adopting above-mentioned technical scheme, trapezoidal spout and slider restriction cooling tube can only follow spout length direction and remove for when guide cooling tube removed, the cooling tube was in vertical state all the time, thereby makes the cooling tube each perpendicular distance to the die cavity equal, and then makes the interior plastics cooling of die cavity comparatively even.

Optionally, the guide part is disc-shaped, the guide part is rotatably connected to the top of the first mold, and the guide part rotates around an axis which vertically passes through the center of the circle of the guide part; the guide piece is provided with a plurality of arc grooves which penetrate through the upper end surface and the lower end surface of the guide piece, one ends of the arc grooves, which face the middle part of the guide piece, point to the circle center of the guide piece, and the arc grooves are arranged in a bending way in the same direction; the top of the cooling pipe penetrates through the corresponding arc groove, and the cooling pipe is in sliding fit with the arc groove; the guide piece center department offers the hole of dodging that is used for dodging the feed inlet, and the feed inlet is located dodges downtheholely.

Through adopting above-mentioned technical scheme, when rotating the guide, all cooling tube tops slide along the circular arc groove is synchronous, because the cooling tube is in vertical state all the time for all cooling tubes are whole all to remove along the holding tank, adjust the perpendicular distance of many cooling tubes to the die cavity simultaneously, thereby adjust the holistic cooling rate of die cavity.

Optionally, a connecting block in a cylindrical shape is additionally arranged between the guide piece and the top of the first die, the axis of the connecting block coincides with the rotation axis of the guide piece, a through hole corresponding to the avoidance hole is formed in the connecting block, and the feed port is located in the through hole; the connecting block is fixedly connected with the guide piece; the end part of the first die is additionally provided with a connecting ring, the connecting block is inserted in the connecting ring, and the connecting ring is in threaded fit with the connecting block.

Through adopting above-mentioned technical scheme, guide and first mould threaded connection for the guide can the rotation and do not influence the feed inlet feeding.

Optionally, a locking bolt is additionally arranged on the top surface of the guide piece corresponding to the connecting ring, the locking bolt vertically penetrates through the guide piece, and one end of the locking bolt penetrating through the guide piece abuts against the end surface of the connecting ring.

By adopting the technical scheme, the effect of locking the guide piece is achieved by using a simple structure.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the plastic in the cavity can be cooled more uniformly by uniformly arranging the plurality of cooling pipes;

2. through the guide piece and the trapezoidal slider that add, conveniently adjust the perpendicular distance of many cooling tubes to die cavity simultaneously to adjust the cooling rate of die cavity.

Drawings

FIG. 1 is a cross-sectional view of an embodiment of the present application;

fig. 2 is a sectional view of a related art syringe mold.

Description of reference numerals: 1. a first mold; 11. a first column; 111. a groove; 112. a feed inlet; 113. accommodating grooves; 12. a first chassis; (ii) a 121. A chute; 2. a second mold; 21. a second cylinder; 22. a second chassis; 3. a water circulation module; 31. a cooling tube; 32. a water pump; 33. a water inlet pipe; 34. a water outlet pipe; 35. an upper ring pipe; 36. a lower ring pipe; 37. a hose; 4. a drive module; 41. a slider; 42. a guide member; 421. an arc groove; 422. avoiding holes; 5. connecting blocks; 6. a connecting ring; 7. and locking the bolt.

Detailed Description

The present application is described in further detail below with reference to fig. 1.

The embodiment of the application discloses a quick thermal cycle temperature control device that moulds plastics. Referring to fig. 1, the temperature control device includes a water circulation module 3 and a driving module 4 disposed outside the first mold 1, and the cooling module includes a cooling pipe 31 vertically disposed, a hose 37, an upper ring pipe 35 disposed on the top of the cooling pipe 31, a lower ring pipe 36 disposed on the bottom of the cooling pipe 31, a water outlet pipe 34 connected to the upper ring pipe 35, a water inlet pipe 33 connected to the lower ring pipe 36, and a water pump 32 for supplying water to the water inlet pipe 33. The cooling pipes 31 are provided with 8 pipes in total and are uniformly distributed outside the first mold 1. The upper ring pipe 35 is connected to the top of the cooling pipe 31 by a hose 37, and the lower ring pipe 36 is connected to the bottom of the cooling pipe 31 by a hose 37.

The first mold 1 includes a first column 11 and a first chassis 12, the centers of circles of the upper ring pipe 35 and the lower ring pipe 36 are all located on the axis of the first column 11, and the upper ring pipe 35 and the lower ring pipe 36 are all horizontally arranged outside the first column 11. Offer the holding tank 113 corresponding with cooling tube 31 on the outer wall of first cylinder 11, cooling tube 31 all sets up in the tank bottom of holding tank 113, is closer to the die cavity promptly to improve cooling efficiency. The receiving groove 113 is through with the upper and lower end surfaces of the first column 11, and the cooling pipe 31 is in sliding fit with the side wall of the receiving groove 113. Since the cooling pipe 31 and the upper ring pipe 35 and the cooling pipe 31 and the lower ring pipe 36 are connected by the hose 37, the cooling pipe 31 can be freely moved even when the upper ring pipe 35 and the lower ring pipe 36 are fixed.

Water is pumped by the water pump 32 from the water inlet pipe 33 to the lower ring pipe 36, then from the lower ring pipe 36 to the upper ring pipe 35 through the cooling pipe 31, and finally discharged from the water outlet pipe 34, so that a water circulation is formed.

The driving module 4 includes a slider 41 at the bottom of the cooling pipe 31 and a guide 42 provided at the top of the first column 11. A slider 41 is fixed to the bottom of each cooling tube 31. The first chassis 12 is provided with a sliding chute 121 corresponding to the accommodating groove 113, the sliding chute 121 is communicated with the accommodating groove 113, and the cross section of the sliding chute 121 is trapezoidal. The shape of the sliding block 41 corresponds to the sliding groove 121, the sliding block 41 is disposed in the sliding groove 121, and the sliding block 41 is in sliding fit with the sliding groove 121. The trapezoidal sliding groove 121 and the sliding block 41 are matched, so that the cooling pipe 31 can only move along the length direction of the sliding groove 121, and the cooling pipe 31 is always in a vertical state.

The guide 42 has a disk shape, and the axis of the first column 11 vertically passes through the center of the guide 42. The guide 42 is rotatably connected to the first column 11, and the guide 42 rotates around the axis of the first column 11. The guide member 42 is provided with an avoiding hole 422 corresponding to the feed port 112, so that the injection molding feeding is not affected. The upper surface of the guide 42 is provided with 8 circular grooves 421 corresponding to the cooling pipes 31, and the circular grooves 421 penetrate the upper surface and the lower surface of the guide 42. One end of the arc groove 421 near the center of the guide 42 points to the center of the guide 42, and the arc groove 421 is curved counterclockwise when viewed from top to bottom. The top of the cooling pipe 31 is inserted into the circular arc groove 421, and one end of the cooling pipe 31 passing through the circular arc groove 421 is connected to the upper ring pipe 35 through the hose 37.

When the cooling pipe 31 is located at the bottom of the accommodating groove 113, the top of the cooling pipe 31 is located at one end of the circular arc groove 421 close to the center of the guide 42. From the top down, when clockwise turning guide 42, the top of cooling tube 31 moves along the direction that holding tank 113 kept away from the die cavity under the guiding action of circular arc groove 421, because slider 41 and spout 121's restriction, cooling tube 31 remains vertical state throughout, make slider 41 move along spout 121 towards the direction of keeping away from the die cavity, cooling tube 31 keeps vertical state to move towards the direction of keeping away from the die cavity promptly, through the perpendicular distance of adjusting cooling tube 31 and die cavity, thereby change the cooling rate of plastics in the die cavity, with this cooling demand that satisfies the difference.

The top of the first cylinder 11 is provided with a connecting ring 6, and the axis of the connecting ring 6 is coincident with the axis of the first cylinder 11. One side of the guide member 42 close to the first column 11 is provided with a connecting block 5 integrally arranged with the guide member 42, the connecting block 5 is a cylinder, and the axis of the connecting block 5 coincides with the axis of the connecting block 5. The connecting block 5 is inserted into the connecting ring 6, and the connecting block 5 is in threaded fit with the connecting ring 6. The connecting block 5 is provided with a through hole corresponding to the avoiding hole 422, and the feeding hole 112 is arranged in the through hole.

The upper surface of the guide member 42 is additionally provided with a locking bolt 7 at a position corresponding to the connecting ring 6, the locking bolt 7 is arranged through the guide member 42, one end of the locking bolt 7 penetrating through the guide member 42 is abutted against the upper end surface of the connecting ring 6, and the rotation of the guide member 42 is locked through the locking bolt 7.

The implementation principle of the embodiment of the application is as follows: during injection molding, air is filled in the cooling pipe 31, molten plastic enters the cavity from the feed inlet 112, and injection molding is stopped when the cavity is filled with the plastic.

The water pump 32 is started to fill the cooling pipe 31 with water, and the water flows from the cooling pipe 31 from the bottom to the top. When the plastic in the mold cavity is cooled and hardened, the water pump 32 evacuates the water in the cooling pipe 31, so that the cooling pipe 31 is filled with air again.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a quick thermal cycle temperature control device that moulds plastics which characterized in that: including water circulation module (3), water circulation module (3) include many set up in outside cooling tube (31) of first mould (1), set up respectively in inlet tube (33) and outlet pipe (34) at cooling tube (31) both ends and be used for water pump (32) of water supply pipe (33) delivery water, cooling tube (31) set up along first mould (1) length direction, and cooling tube (31) evenly set up along first mould (1) lateral wall circumference.

2. The rapid thermal cycle injection molding temperature control device according to claim 1, wherein: the water circulation module (3) further comprises an upper ring pipe (35) and a lower ring pipe (36), the tops of the cooling pipes (31) are connected with the upper ring pipe (35), and the water outlet pipe (34) is connected with the upper ring pipe (35); the bottom of the cooling pipe (31) is connected with the lower ring pipe (36), and the water inlet pipe (33) is connected with the lower ring pipe (36).

3. The rapid thermal cycle injection molding temperature control device according to claim 2, wherein: the cooling pipe (31) all sets up along vertical, set up on the lateral wall of first mould (1) and hold tank (113) corresponding with cooling pipe (31), cooling pipe (31) set up in the tank bottom of hold tank (113).

4. The rapid thermal cycle injection molding temperature control device according to claim 3, wherein: the cooling device is characterized by further comprising a driving module (4) used for driving the cooling pipe (31) to move towards or away from the cavity along the accommodating groove (113), hoses (37) are additionally arranged between the upper ring pipe (35) and the cooling pipe (31) and between the lower ring pipe (36) and the cooling pipe (31), the top of the cooling pipe (31) is connected with the upper ring pipe (35) through the hoses (37), and the bottom of the cooling pipe (31) is connected with the lower ring pipe (36) through the hoses (37).

5. The rapid thermal cycle injection molding temperature control device according to claim 4, wherein: the driving module (4) comprises a sliding block (41) arranged at the bottom of the cooling pipe (31) and a guide piece (42) used for guiding the cooling pipe (31) to move, the sliding block (41) is trapezoidal, a plurality of sliding grooves (121) are formed in the first die (1), the cross section shapes of the sliding grooves (121) correspond to the sliding block (41), and the axial lines of the sliding grooves (121) in the length direction point to the axial line of the first die (1); the sliding block (41) is in sliding fit with the sliding groove (121).

6. The rapid thermal cycle injection molding temperature control device according to claim 5, wherein: the guide piece (42) is disc-shaped, the guide piece (42) is rotationally connected to the top of the first die (1), and the guide piece (42) rotates around an axis which vertically penetrates through the center of the circle of the guide piece (42); a plurality of arc grooves (421) penetrating through the upper end face and the lower end face of the guide piece (42) are formed in the guide piece (42), one ends of the arc grooves (421) facing the middle of the guide piece (42) point to the circle center of the guide piece (42), and the arc grooves (421) are arranged in a bending mode in the same direction; the top of the cooling pipe (31) penetrates through the corresponding arc groove (421), and the cooling pipe (31) is in sliding fit with the arc groove (421); the center of the guide piece (42) is provided with an avoiding hole (422) for avoiding the feeding hole (112), and the feeding hole (112) is positioned in the avoiding hole (422).

7. The rapid thermal cycle injection molding temperature control device according to claim 6, wherein: a connecting block (5) in a cylindrical shape is additionally arranged between the guide piece (42) and the top of the first die (1), the axis of the connecting block (5) is superposed with the rotation axis of the guide piece (42), a through hole corresponding to the avoidance hole (422) is formed in the connecting block (5), and the feed port (112) is positioned in the through hole; the connecting block (5) is fixedly connected with the guide piece (42); the end part of the first die (1) is additionally provided with a connecting ring (6), the connecting block (5) is inserted into the connecting ring (6), and the connecting ring (6) is in threaded fit with the connecting block (5).

8. The rapid thermal cycle injection molding temperature control device according to claim 7, wherein: the locking bolt (7) is additionally arranged on the top surface of the guide piece (42) corresponding to the connecting ring (6), the locking bolt (7) vertically penetrates through the guide piece (42), and one end, penetrating through the guide piece (42), of the locking bolt (7) abuts against the end surface of the connecting ring (6).