CN223657540U

CN223657540U - A demolding device for injection molds

Info

Publication number: CN223657540U
Application number: CN202423304598.1U
Authority: CN
Inventors: 顾木香
Original assignee: Nanjing Yizhong Technology Co ltd
Current assignee: Nanjing Yizhong Technology Co ltd
Priority date: 2024-12-31
Filing date: 2024-12-31
Publication date: 2025-12-12
Anticipated expiration: 2034-12-31

Abstract

The utility model relates to the technical field of injection molds and discloses a demolding device for an injection mold, which comprises a workbench, wherein a supporting frame is fixedly connected to the top of the workbench, a top plate is fixedly connected to the top of the supporting frame, an installation box is fixedly connected to the bottom of the workbench, a lower mold is detachably connected to the top of the workbench, a demolding assembly is arranged on the inner wall of the installation box, a heat dissipation assembly is arranged on the inner wall of the top plate, and the demolding assembly comprises a mounting frame. This demoulding device for injection mold is provided with mounting bracket, gear motor, lead screw, movable block, thread groove, gag lever post, bracing piece and ejector plate, through gear motor work, can realize the reciprocates of ejector plate, when heavier mould shaping needs the drawing of patterns, the shaping chamber with forming die follow the bed die that moves up through the ejector plate can be fine is ejecting, has improved drawing of patterns efficiency, has reduced manual operation's degree of difficulty.

Description

Demolding device for injection mold

Technical Field

The utility model relates to the technical field of injection molds, in particular to a demolding device for an injection mold.

Background

The injection molding method has the advantages of high production speed, high efficiency, automation of operation, multiple colors, various shapes, large size, accurate product size, easy updating of products, capability of forming products with complex shapes, suitability for mass production, products with complex shapes and other molding processing fields.

At present, manual demolding is generally used for demolding of an injection mold, and because the temperature is higher during injection mold molding, workers need to wait for cooling of a product for a period of time and then perform demolding operation.

Prior art publication CN219727020U patent document provides an injection mold, when the drawing of patterns, connect external power supply start-up air pump, the air pump is through the inlet port with outside air delivery for the gas-supply pipe, then the gas-supply pipe is with air delivery for two divided gas blow holes, the gas blow hole is with outside air delivery to the injection cavity bottom of bed die at last, utilize atmospheric pressure to jack-up the fashioned injection molding product in the mould, then utilize artifical external force to carry out the drawing of patterns, make the product of moulding plastics be difficult to the chucking inside the mould through the atmospheric pressure for the drawing of patterns of mould becomes more convenient.

In the prior art, although the lighter injection mold can be blown up during demolding, when the heavier injection mold is faced, the acting force of gas is very limited, and the heavier molding mold cannot be blown up well, so that the problem of demolding of the heavier mold is obviously insufficient, and therefore, a demolding device for the injection mold is needed.

Disclosure of Invention

The utility model aims to provide a demolding device for an injection mold, which aims to solve the problems in the background technology.

In order to solve the technical problems, the utility model provides the technical scheme that the demolding device for the injection mold comprises a workbench, wherein the top of the workbench is fixedly connected with a supporting frame, the top of the supporting frame is fixedly connected with a top plate, the bottom of the workbench is fixedly connected with a mounting box, the top of the workbench is detachably connected with a lower mold, the inner wall of the mounting box is provided with a demolding assembly, and the inner wall of the top plate is provided with a heat dissipation assembly;

The demolding assembly comprises a mounting frame, a speed reducing motor is mounted on the inner wall of the mounting frame, an output shaft of the speed reducing motor is fixedly connected with a screw rod through a coupling, a moving block is connected with the outer wall of the screw rod in a threaded manner, a thread groove is formed in the inner wall of the moving block, a limit rod is connected with the inner wall of the moving block in a sliding manner, a supporting rod is fixedly connected to the top of the moving block, and an ejector plate is fixedly connected to one end of the supporting rod;

The heat dissipation assembly comprises a sliding groove, the inner wall of the sliding groove is fixedly connected with a fixed bearing, the inner wall of the fixed bearing is provided with a threaded rod, the outer wall of the threaded rod is connected with a movable frame in a threaded manner, the outer wall of the movable frame is detachably connected with a heat conducting plate, the outer wall of the heat conducting plate is fixedly connected with a heat dissipation fin, and the inner wall of the supporting frame is detachably connected with an air cooler.

Preferably, the inner wall of the lower die is provided with a forming cavity, the top of the top plate is provided with a hydraulic cylinder, and one end of the hydraulic cylinder is provided with an upper die.

Preferably, the gear motor and the moving block form a moving structure through a screw rod, and one end thread of the screw rod passes through the thread groove.

Preferably, one end of the supporting rod penetrates through the mounting box and the workbench to extend into the lower die to be connected with the ejector plate.

Preferably, the top plate and the threaded rod form a rotating structure through a fixed bearing, and one end thread of the threaded rod penetrates through the movable frame and stretches into the fixed bearing to be connected.

Preferably, the shape and the size of the inner wall of the sliding groove are matched with those of the outer wall of the movable frame, and the inner wall of the sliding groove is attached to the outer wall of the movable frame.

Preferably, the number of the air coolers is two, and the two air coolers are symmetrically arranged by taking the perpendicular bisector of the workbench as a symmetrical axis.

Compared with the prior art, the utility model has the following beneficial effects:

The utility model is provided with the mounting frame, the gear motor, the screw rod, the moving block, the thread groove, the limiting rod, the supporting rod and the ejector plate, and can realize the up-and-down movement of the ejector plate through the work of the gear motor, when the heavy die is molded and needs to be demolded, the ejector plate can be used for well ejecting the molding die from the molding cavity of the lower die, so that the demolding efficiency is improved, and the difficulty of manual operation is reduced.

The second, the utility model has the chute, fixed bearing, threaded rod, movable frame, heat-conducting plate, radiating fin and air cooler, rotate the threaded rod through the hand grip, can make movable frame drive the heat-conducting plate move and laminate upper mould and lower mould outer wall, make the heat of upper mould and lower mould transfer to the heat-conducting plate, the heat transfers to the radiating fin from the heat-conducting plate and expands the radiating area, work through two air coolers, blow cold wind to the radiating fin, has accelerated the radiating rate of heat, has reduced the temperature of the mould effectively, has shortened the cooling time of the mould, has raised production efficiency.

Drawings

FIG. 1 is a schematic diagram of a front view structure of the present utility model;

FIG. 2 is a schematic diagram of the structure of the gear motor and the screw rod of the present utility model;

FIG. 3 is a schematic view of a lower mold and a heat conducting plate structure according to the present utility model;

fig. 4 is an enlarged schematic view of the structure of fig. 2a according to the present utility model.

The device comprises a workbench, a supporting frame, a top plate, a mounting box, a lower die, a demoulding assembly, a 601, a mounting frame, a 602, a gear motor, a 603, a screw rod, a 604, a moving block, a 605, a thread groove, a 606, a limiting rod, a 607, a supporting rod, a 608, an ejector plate, a 7, a radiating assembly, a 701, a chute, a 702, a fixed bearing, a 703, a threaded rod, a 704, a moving frame, a 705, a heat conducting plate, a 706, a radiating fin, a 707, an air cooler, an 8, a forming cavity, a 9, a hydraulic cylinder, a 10 and an upper die.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-4, the demolding device for the injection mold comprises a workbench 1, wherein the top of the workbench 1 is fixedly connected with a support frame 2, the top of the support frame 2 is fixedly connected with a top plate 3, the bottom of the workbench 1 is fixedly connected with a mounting box 4, the top of the workbench 1 is detachably connected with a lower mold 5, the inner wall of the mounting box 4 is provided with a demolding assembly 6, the inner wall of the top plate 3 is provided with a heat dissipation assembly 7, the demolding assembly 6 comprises a mounting frame 601, the inner wall of the mounting frame 601 is provided with a gear motor 602, an output shaft of the gear motor 602 is fixedly connected with a screw 603 through a coupling, the outer wall of the screw 603 is in threaded connection with a moving block 604, the inner wall of the moving block 604 is provided with a threaded groove 605, the inner wall of the moving block 604 is in sliding connection with a limit rod 606, the top of the moving block 604 is fixedly connected with a support rod 607, one end of the support rod 607 is fixedly connected with an ejector plate 608, the heat dissipation assembly 7 comprises a chute 701, the inner wall of the chute 701 is fixedly connected with a fixed bearing 702, the inner wall of the threaded rod 703 is provided with a threaded rod, the outer wall of the moving frame 704 is in threaded connection with a moving frame 705, the outer wall of the moving frame 704 is in threaded connection with the outer wall of the moving frame is provided with a heat conducting fin 706, and the outer wall of the moving plate is in detachable connection with a heat conducting fin 706 is fixedly connected with an inner wall of a heat conducting fin 706.

According to the technical scheme, the ejector plate 608 can move up and down through the operation of the gear motor 602, when a heavier die is molded and needs to be demolded, the ejector plate 608 moves up to well eject the molding die from the molding cavity 8 of the lower die 5, so that the demolding efficiency is improved, the manual operation difficulty is reduced, the threaded rod 703 is rotated by the handle, the movable frame 704 drives the heat conducting plate 705 to move to be attached to the outer walls of the upper die 10 and the lower die 5, the heat of the upper die 10 and the lower die 5 is transferred to the heat conducting plate 705, the heat is transferred from the heat conducting plate 705 to the radiating fins 706 to enlarge the radiating area, and cold air is blown to the radiating fins 706 through the operation of the two air coolers 707, so that the radiating speed of the heat is accelerated, the temperature of the die is effectively reduced, the cooling time of the die is shortened, and the production efficiency is improved.

Specifically, the inner wall of the lower die 5 is provided with a forming cavity 8, the top of the top plate 3 is provided with a hydraulic cylinder 9, and one end of the hydraulic cylinder 9 is provided with an upper die 10.

Through the technical scheme, the upper die 10 can be moved downwards to be matched with the lower die 5 through the working of the hydraulic cylinder 9, a controller is arranged on one side of the supporting frame 2, the mounting frame 601 is fixed in the mounting box 4, and two sliding grooves 701 are formed in the inner wall of the top plate 3.

Specifically, the gear motor 602 forms a moving structure with the moving block 604 through the screw 603, and one end of the screw 603 is threaded through the thread groove 605.

Through the technical scheme, threads in the thread groove 605 on the moving block 604 are matched with threads on the screw rod 603, a bearing is arranged at one end of the screw rod 603, the screw rod 603 rotates in the bearing more stably when rotating, a round groove is formed in the moving block 604, the limiting rod 606 is fixed on the mounting frame 601, the moving block 604 moves when the screw rod 603 rotates through limiting of the limiting rod 606, and the moving block 604 moves on the limiting rod 606 more stably through the round groove.

Specifically, one end of the support rod 607 extends into the lower die 5 through the mounting box 4 and the table 1 to be connected to the ejector plate 608.

Through the above technical scheme, when the supporting rod 607 moves, the supporting rod 607 can well drive the ejector plate 608 to move.

Specifically, the top plate 3 and the threaded rod 703 form a rotating structure through the fixed bearing 702, and one end of the threaded rod 703 is threaded through the movable frame 704 and extends into the fixed bearing 702 for connection.

Through above-mentioned technical scheme, when threaded rod 703 rotates, threaded rod 703 pivoted more stable in fixed bearing 702, has seted up the helicoidal groove in the removal frame 704, and the screw thread in the helicoidal groove matches each other with the screw thread on the threaded rod 703, and the one end of threaded rod 703 is provided with the handle.

Specifically, the shape and size of the inner wall of the chute 701 are matched with those of the outer wall of the movable frame 704, and the inner wall of the chute 701 is attached to the outer wall of the movable frame 704.

By the above technical solution, the connection effect between the chute 701 and the moving frame 704 is enhanced, and when the moving frame 704 moves, the moving frame 704 moves within the chute 701 more stably.

Specifically, the number of air coolers 707 is two, and the two air coolers 707 are symmetrically arranged with the perpendicular bisector of the workbench 1 as a symmetry axis.

Through the above technical scheme, through being provided with two air-cooler 707 simultaneous working and blowing cold wind, the cooling rate of last mould 10 and bed die 5 has been accelerated, cooling efficiency has been improved.

When the device is used, the device is connected with an external power supply, the external power supply supplies power to the device, and when the device needs to be matched, the hydraulic cylinder 9 works to enable the upper die 10 to move downwards to be matched with the lower die 5; when the upper die 10 and the lower die 5 need to be cooled, the left threaded rod 703 is rotated by the handle, the movable frame 704 is moved, the movable frame 704 drives the heat conducting plate 705 to move, the heat conducting plate 705 drives the heat radiating fins 706 to move, the heat conducting plate 705 moves, the outer wall of the heat conducting plate 705 is attached to the outer walls of the upper die 10 and the lower die 5, the right threaded rod 703 is rotated by the handle, the right heat conducting plate 705 is moved to attach to the outer walls of the upper die 10 and the lower die 5, the heat of the upper die 10 and the lower die 5 is transferred to the heat conducting plate 705, the heat is transferred from the heat conducting plate 705 to the plurality of heat radiating fins 706, the heat radiating area is enlarged, the two air coolers 707 work, cold air is blown onto the heat radiating fins 706, the heat radiating speed is accelerated, the temperature of the die is effectively reduced, the cooling time of the die is shortened, the production efficiency is improved, when the die in the forming cavity 8 of the lower die 5 needs to be demolded, the upper die 10 is enabled to move upwards by the hydraulic cylinder 9, the speed reducing motor 602 is enabled to work, the lead screw 603 is driven to rotate, the moving block 604 is enabled to move on the upper limit rod 606, the moving block 606 is driven to move upwards, the support rod 608 is driven to move, the ejector rod 608 is moved upwards, the upper die cavity is moved, the moulding cavity is completely, and the moulding difficulty is improved, the moulding efficiency is achieved, and the moulding difficulty is achieved, and the moulding cavity is achieved.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims

1. The demolding device for the injection mold comprises a workbench (1) and is characterized in that the top of the workbench (1) is fixedly connected with a supporting frame (2), the top of the supporting frame (2) is fixedly connected with a top plate (3), the bottom of the workbench (1) is fixedly connected with a mounting box (4), the top of the workbench (1) is detachably connected with a lower mold (5), the inner wall of the mounting box (4) is provided with a demolding assembly (6), and the inner wall of the top plate (3) is provided with a heat dissipation assembly (7);

The demolding assembly (6) comprises a mounting frame (601), a gear motor (602) is mounted on the inner wall of the mounting frame (601), an output shaft of the gear motor (602) is fixedly connected with a screw rod (603) through a coupler, the outer wall of the screw rod (603) is in threaded connection with a moving block (604), a thread groove (605) is formed in the inner wall of the moving block (604), a limit rod (606) is slidably connected with the inner wall of the moving block (604), a support rod (607) is fixedly connected to the top of the moving block (604), and an ejector plate (608) is fixedly connected to one end of the support rod (607);

The heat dissipation assembly (7) comprises a chute (701), the inner wall of the chute (701) is fixedly connected with a fixed bearing (702), the inner wall of the fixed bearing (702) is provided with a threaded rod (703), the outer wall of the threaded rod (703) is in threaded connection with a movable frame (704), the outer wall of the movable frame (704) is detachably connected with a heat conducting plate (705), the outer wall of the heat conducting plate (705) is fixedly connected with a heat dissipation fin (706), and the inner wall of the support frame (2) is detachably connected with an air cooler (707).

2. The demolding device for the injection mold according to claim 1, wherein a molding cavity (8) is formed in the inner wall of the lower mold (5), a hydraulic cylinder (9) is mounted on the top of the top plate (3), and an upper mold (10) is arranged at one end of the hydraulic cylinder (9).

3. The stripping device for injection molds according to claim 1, wherein the gear motor (602) and the moving block (604) form a moving structure through a screw rod (603), and one end of the screw rod (603) is threaded through a thread groove (605).

4. The demolding device for injection molds according to claim 1, wherein one end of the supporting rod (607) penetrates through the mounting box (4) and the workbench (1) and extends into the lower mold (5) to be connected with the ejector plate (608).

5. The demolding device for the injection mold according to claim 1, wherein the top plate (3) and the threaded rod (703) form a rotating structure through the fixed bearing (702), and one end thread of the threaded rod (703) penetrates through the movable frame (704) and stretches into the fixed bearing (702) to be connected.

6. The demolding device for the injection mold according to claim 1, wherein the shape and the size of the inner wall of the sliding groove (701) are matched with those of the outer wall of the movable frame (704), and the inner wall of the sliding groove (701) is attached to the outer wall of the movable frame (704).

7. The stripping device for injection molds according to claim 1, wherein the number of the air coolers (707) is two, and the two air coolers (707) are symmetrically arranged with the center vertical line of the workbench (1) as a symmetry axis.