Fixing device for injection mold for producing environment-friendly plastic products

By using the limiting design of electric cylinders and elastic contact pads, as well as the condenser cooling mechanism, the problems of cumbersome operation and long cooling cycle of injection mold fixing devices are solved, realizing rapid mold positioning and efficient cooling, and improving production efficiency.

CN224074854UActive Publication Date: 2026-04-03NANYANG SHUNGUANG PLASTIC PRODUCTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing injection mold fixing devices are cumbersome to operate, requiring the disassembly and assembly of bolt components, and have long cooling cycles, which affects production efficiency.

Method used

The system employs an electric cylinder and an elastic contact pad as a contact limiting mechanism, combined with a portable cooling mechanism consisting of a condenser pipe and a water pump, and supplemented by an auxiliary disassembly and assembly mechanism with positioning clips, to achieve rapid positioning and cooling of the mold.

Benefits of technology

It simplifies the mold installation and disassembly process, shortens the cooling cycle, and improves production efficiency and stability.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model relates to the technical field of injection molding equipment, in particular to an environment-friendly plastic product production injection mold fixing device which comprises a supporting base, an auxiliary mounting base, an abutting limiting mechanism, a portable cooling mechanism and an auxiliary disassembling and assembling mechanism. When the environment-friendly plastic product production injection mold fixing device is used, through the design that the two sets of air cylinder assemblies are oppositely arranged and abut against and limit an injection mold through the air cylinder assemblies, the actual positioning and placing procedure of the injection mold is facilitated to a great extent, and a new mold can be installed without reversely disassembling and assembling bolt assemblies; and furthermore, through the design that elastic abutting pads are installed on the side edges of the clamping assemblies in an embedded mode, the contact friction force between the whole device and the outer wall of the injection mold is increased through the elastic abutting pads, so that the injection mold can be more stably positioned in the device, the overall structural design is simple, and the practical effect is good.
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Description

Technical Field

[0001] This utility model relates to the field of injection molding equipment technology, and in particular to a fixing device for injection molds used in the production of environmentally friendly plastic products. Background Technology

[0002] In the production of environmentally friendly plastic products, the injection mold fixing device is a device used to assist in the positioning of the injection mold. Its main function is to ensure that the mold does not move during the injection process, thereby ensuring the dimensional accuracy of the product and the stability of production.

[0003] Existing injection molds typically use bolt assemblies to directly position the lower mold on the table. After a single mold is used, the old mold needs to be removed and the new mold needs to be reinstalled following the same operating steps. The overall operation is cumbersome, and existing tabletop molds generally require static cooling during actual injection, resulting in a long overall cooling cycle. Utility Model Content

[0004] The purpose of this utility model is to solve the above-mentioned problems by proposing an environmentally friendly plastic product injection mold fixing device. It improves the existing injection mold, which generally uses bolt assembly to directly position the lower mold on the table. After a single mold is used, the old mold needs to be removed and the new mold needs to be reinstalled according to the same operation steps. The overall operation process is cumbersome. In addition, the existing tabletop mounted mold generally needs to be left to cool during actual injection, and the overall cooling cycle is long.

[0005] An environmentally friendly plastic product manufacturing injection mold fixing device includes a support base, an auxiliary mounting seat, an anti-limiting mechanism, a portable cooling mechanism, and an auxiliary disassembly and assembly mechanism: the auxiliary mounting seat is fixedly installed on the top outer wall of the support base;

[0006] The contact limiting mechanism includes an electric cylinder, a heat insulation plate, a clamping plate, and an elastic contact pad. Two sets of electric cylinders are installed opposite each other on the top outer wall of the auxiliary mounting base. The extended end of the electric cylinder is connected to the side outer wall of the heat insulation plate. The clamping plate is fitted to the side outer wall of the heat insulation plate, and an elastic contact pad is embedded in the side outer wall of the clamping plate away from the heat insulation plate.

[0007] Preferably, a strip-shaped back plate is fixedly installed on the top outer wall of the auxiliary mounting base, and a limiting T-shaped block is provided on the side outer wall of the clamping plate near the strip-shaped back plate. A limiting T-shaped groove is correspondingly opened on the side outer wall of the strip-shaped back plate for the limiting T-shaped block to slide and install.

[0008] Preferably, the portable cooling mechanism includes a liquid storage tank, a condenser tube, a water inlet pipe, and a water pump. The liquid storage tank is fixedly installed above the support base. The condenser tube is embedded inside the auxiliary mounting base. The water inlet end of the condenser tube is connected to the water inlet pipe through a flange assembly, and the water inlet pipe is connected to the output end of the water pump.

[0009] Preferably, the water pump is installed inside the liquid storage tank, the outlet end of the condenser tube is connected to the drain pipe through a flange assembly, and the outlet end of the drain pipe is located inside the liquid storage tank. A thermometer is installed on the top outer wall of the liquid storage tank, and the detection end of the thermometer is located inside the liquid storage tank.

[0010] Preferably, the auxiliary disassembly and assembly mechanism includes positioning clips and positioning slots. Positioning clips are symmetrically arranged on the outer side wall of the clamping plate near the insulation plate. Two sets of positioning slots are correspondingly opened on the outer side wall of the insulation plate for the positioning clips to be inserted and installed.

[0011] Preferably, the top outer wall of the positioning clip has a first threaded groove, and the top outer wall of the insulation plate has a corresponding second threaded groove. The first and second threaded grooves are threadedly connected to the fastening bolt.

[0012] Preferably, the outer surface of the fastening bolt at the rotating end is provided with vertical anti-slip grooves.

[0013] The beneficial effects of this utility model are:

[0014] 1. When using this environmentally friendly plastic product manufacturing injection mold fixing device, two sets of cylinder assemblies are arranged in opposite directions and the injection mold is resisted and limited by the cylinder assemblies. This greatly simplifies the actual positioning and placement process of the injection mold. There is no need to disassemble the bolt assembly to install a new mold. Furthermore, by embedding elastic contact pads on the side of the clamping assembly, the contact friction between the device and the outer wall of the injection mold is increased, so that the injection mold can be more stably positioned inside the device. The overall structure design is simple and the practical effect is good.

[0015] 2. When using this environmentally friendly plastic product injection mold fixing device, a condenser tube is embedded inside the device and a water pump assembly continuously pumps condensate into the condenser tube. Through the process of circulating condensate, the mold can be cooled directly through heat exchange. At the same time, with the addition of a thermometer, the temperature of the coolant can be quickly monitored, making it convenient for users to replace the coolant in a timely manner. The overall structure is simple and has good practical effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the contact limiting mechanism of this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the portable cooling mechanism of this utility model.

[0019] Figure 4 This is a three-dimensional structural diagram of the auxiliary disassembly and assembly mechanism of this utility model.

[0020] In the diagram: 1. Support base; 2. Auxiliary mounting base; 3. Abutment limiting mechanism; 31. Electric cylinder; 32. Insulation plate; 33. Clamping plate; 34. Elastic abutment pad; 35. Strip back plate; 36. Limiting T-block; 37. Limiting T-slot; 4. Portable cooling mechanism; 41. Liquid storage tank; 42. Condenser tube; 43. Water inlet pipe; 44. Water pump; 45. Drain pipe; 46. Thermometer; 5. Auxiliary disassembly and assembly mechanism; 51. Positioning clip; 52. Positioning slot; 53. First threaded groove; 54. Second threaded groove; 55. Fastening bolt. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In practical implementation: such as Figure 1-4 As shown, an environmentally friendly plastic product manufacturing injection mold fixing device includes a support base 1, an auxiliary mounting base 2, an abutment limiting mechanism 3, a portable cooling mechanism 4, and an auxiliary disassembly mechanism 5: the auxiliary mounting base 2 is fixedly installed on the top outer wall of the support base 1.

[0023] The contact limiting mechanism 3 includes an electric cylinder 31, a heat insulation plate 32, a clamping plate 33, and an elastic contact pad 34. Two sets of electric cylinders 31 are installed opposite each other on the top outer wall of the auxiliary mounting base 2. The extended end of the electric cylinder 31 is connected to the side outer wall of the heat insulation plate 32. The clamping plate 33 is fitted to the side outer wall of the heat insulation plate 32, and the elastic contact pad 34 is embedded in the side outer wall of the clamping plate 33 away from the heat insulation plate 32. A strip back plate 35 is fixedly installed on the top outer wall of the auxiliary mounting base 2. A limiting T-shaped block 36 is provided on the side outer wall of the clamping plate 33 near the strip back plate 35. A limiting T-shaped groove 37 for the limiting T-shaped block 36 to slide on the side outer wall of the strip back plate 35 is correspondingly opened.

[0024] When it is necessary to position the injection mold inside the device, simply adjust the plastic mold to a suitable position and place it in the middle of the two sets of clamping plates 33. Then, simultaneously activate the two sets of electric cylinders 31. When the electric cylinders 31 are activated, their extended ends automatically extend and push the insulation plate 32 to move. Subsequently, the movement of the insulation plate 32 will automatically drive the clamping plate 33 to move and make it tightly abut against the side outer wall of the injection mold. In this way, the injection mold can be positioned and clamped in the middle of the two sets of clamping plates 33. The elastic contact pad 34 here increases the contact friction between the device and the outer wall of the injection mold, so that the device can more stably position the injection mold inside the device. It should be noted that the electric cylinder 31 has a self-locking function, so the clamping plate 33 can remain in the same position after it is moved.

[0025] The portable cooling mechanism 4 includes a liquid storage tank 41, a condenser tube 42, a water inlet pipe 43, and a water pump 44. The liquid storage tank 41 is fixedly installed on the top of the support base 1. The condenser tube 42 is embedded inside the auxiliary mounting base 2. The water inlet end of the condenser tube 42 is connected to the water inlet pipe 43 through a flange assembly. The water inlet pipe 43 is connected to the output end of the water pump 44. The water pump 44 is installed inside the liquid storage tank 41. The water outlet end of the condenser tube 42 is connected to the drain pipe 45 through a flange assembly. The water outlet end of the drain pipe 45 is located inside the liquid storage tank 41. A thermometer 46 is installed on the top outer wall of the liquid storage tank 41. The detection end of the thermometer 46 is located inside the liquid storage tank 41.

[0026] When the injection mold accumulates heat during use and requires auxiliary cooling, simply turn on the water pump 44. Once the water pump 44 is turned on, it will automatically pump the coolant from the reservoir 41 into the inlet pipe 43, then through the inlet pipe 43 into the condenser pipe 42, and then through the condenser pipe 42 to the drain pipe 45. Finally, the coolant will be returned to the reservoir 41 through the drain pipe 45. This process can cool the injection mold through heat exchange. The thermometer 46 is set here to facilitate real-time monitoring of the coolant temperature inside the reservoir 41. When the coolant temperature is insufficient to cool the injection mold, the control valve at the bottom of the reservoir 41 can be opened to release the coolant inside the reservoir 41, and coolant can be added back into the reservoir through the inlet funnel at the top of the reservoir 41. Alternatively, coolant can be added directly to the water to quickly cool the water, as long as the coolant temperature inside the reservoir 41 is lowered.

[0027] The auxiliary disassembly and assembly mechanism 5 includes positioning clips 51 and positioning slots 52. Positioning clips 51 are symmetrically arranged on the outer side wall of the clamping plate 33 near the insulation plate 32. The outer side wall of the insulation plate 32 is provided with two sets of positioning slots 52 for the positioning clips 51 to be inserted and installed. The top outer wall of the positioning clips 51 is provided with a first threaded groove 53, and the top outer wall of the insulation plate 32 is provided with a second threaded groove 54. The first threaded groove 53 and the second threaded groove 54 are threadedly installed with the fastening bolt 55.

[0028] When it is necessary to remove the clamping plate 33 from the side of the insulation plate 32 to replace it with a new clamping plate 33, the fastening bolt 55 must first be completely unscrewed from the inside of the first threaded groove 53, and then the positioning clip 51 will change from the locked state to the movable state. Then, the clamping plate 33 together with the positioning clip 51 can be removed from the side of the insulation plate 32. When installing the new clamping plate 33, the clamping plate 33 only needs to be adjusted to a suitable position and then the positioning clip 51 on its side is inserted into the corresponding positioning slot 52. When the positioning clip 51 moves to the bottom of the positioning slot 52, the first threaded groove 53 and the second threaded groove 54 will overlap. Then, the fastening bolt 55 can be passed through the first threaded groove 53 and screwed to the bottom of the second threaded groove 54 to complete the installation process of the clamping plate 33.

[0029] The outer surface of the fastening bolt 55 at the rotating end is provided with vertical anti-slip grooves; the anti-slip grooves here make it more stable for the user to rotate the fastening bolt 55 and less likely to slip out of their hand.

[0030] When using this invention, if it is necessary to position the injection mold inside the device, simply adjust the plastic mold to a suitable position and place it in the middle of the two sets of clamping plates 33. Then, simultaneously activate the two sets of electric cylinders 31. When the electric cylinders 31 are activated, their extended ends automatically extend and push the insulation plate 32 to move. Subsequently, the movement of the insulation plate 32 automatically drives the clamping plate 33 to move, making it tightly abut against the side outer wall of the injection mold. In this way, the injection mold can be positioned and clamped in the middle of the two sets of clamping plates 33. The elastic contact pad 34 here increases the contact friction between the device and the outer wall of the injection mold, making the device more stable in positioning the injection mold inside the device. It should be noted that the electric cylinder 31 has a self-locking function, so the clamping plate 33 can remain in the same position after movement.

[0031] When the injection mold accumulates heat during use and requires auxiliary cooling, simply turn on the water pump 44. Once activated, the water pump 44 automatically pumps the coolant from the reservoir 41 into the inlet pipe 43, then through the inlet pipe 43 into the condenser pipe 42, and finally through the condenser pipe 42 to the drain pipe 45. Finally, the coolant is returned to the reservoir 41 through the drain pipe 45. This process cools the injection mold through heat exchange. The thermometer 46 is installed to monitor the coolant temperature in the reservoir 41 in real time. If the coolant temperature is insufficient to cool the injection mold, the control valve at the bottom of the reservoir 41 can be opened to release the coolant. Coolant can then be refilled through the inlet funnel at the top of the reservoir 41, or coolant can be added directly to the water to quickly cool it down, as long as the coolant temperature in the reservoir 41 is lowered.

[0032] When it is necessary to remove the clamping plate 33 from the side of the insulation plate 32 to replace it with a new clamping plate 33, the fastening bolt 55 must first be completely unscrewed from the inside of the first threaded groove 53, and then the positioning clip 51 will change from the locked state to the movable state. Then, the clamping plate 33 together with the positioning clip 51 can be removed from the side of the insulation plate 32. When installing the new clamping plate 33, the clamping plate 33 only needs to be adjusted to a suitable position and then the positioning clip 51 on its side is inserted into the corresponding positioning slot 52. When the positioning clip 51 moves to the bottom of the positioning slot 52, the first threaded groove 53 and the second threaded groove 54 will overlap. Then, the fastening bolt 55 can be passed through the first threaded groove 53 and screwed to the bottom of the second threaded groove 54 to complete the installation process of the clamping plate 33.

[0033] It should be noted that the electric cylinder 31 mentioned above can be powered by existing operating techniques, whether by using a power supply device or an external wire. These are all existing conventional operating techniques and will not be described in detail here.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An injection mold fixing device for eco-friendly plastic product production, characterized in that, Including support base (1), auxiliary mounting seat (2), resistance limiting mechanism (3), portable cooling mechanism (4) and auxiliary dismounting mechanism (5): the top outer wall of the support base (1) is fixedly installed with the auxiliary mounting seat (2); The resistance limiting mechanism (3) includes electric cylinders (31), temperature insulation plates (32), clamping plates (33) and elastic resistance pads (34), the top outer wall of the auxiliary mounting seat (2) is oppositely installed with two groups of electric cylinders (31), the extending end of the electric cylinder (31) is connected with the side outer wall of the temperature insulation plate (32), the side outer wall of the temperature insulation plate (32) is attachedly installed with the clamping plate (33), and the side outer wall of the clamping plate (33) away from the temperature insulation plate (32) is embeddedly installed with the elastic resistance pad (34).

2. The injection mold fixing device for environment-friendly plastic product production of claim 1, characterized in that: The top outer wall of the auxiliary mounting seat (2) is fixedly installed with a strip-shaped back plate (35), the side outer wall of the clamping plate (33) close to the strip-shaped back plate (35) is provided with a limiting T-shaped block (36), and the side outer wall of the strip-shaped back plate (35) is correspondingly provided with a limiting T-shaped groove (37) for slidingly installing the limiting T-shaped block (36).

3. The injection mold fixing device for environment-friendly plastic product production of claim 1, wherein: The portable cooling mechanism (4) includes liquid storage tanks (41), condenser pipes (42), water inlet pipes (43) and water pumps (44), the liquid storage tank (41) is fixedly installed above the support base (1), the condenser pipe (42) is embeddedly installed in the auxiliary mounting seat (2), the water inlet end of the condenser pipe (42) is butt-jointly installed with the water inlet pipe (43) through a flange assembly, and the water inlet pipe (43) is connected with the output end of the water pump (44).

4. The injection mold fixing device for environment-friendly plastic product production of claim 3, characterized in that: The water pump (44) is installed in the liquid storage tank (41), the water outlet end of the condenser pipe (42) is butt-jointly installed with a drain pipe (45) through a flange assembly, the water outlet end of the drain pipe (45) is located in the liquid storage tank (41), and the top outer wall of the liquid storage tank (41) is installed with a thermometer (46), and the detection end of the thermometer (46) is located in the liquid storage tank (41).

5. The injection mold fixing device for environmentally friendly plastic product production of claim 1, wherein: The auxiliary dismounting mechanism (5) includes positioning clamps (51) and positioning clamping grooves (52), the side outer wall of the clamping plate (33) close to the temperature insulation plate (32) is symmetrically provided with the positioning clamps (51), and the side outer wall of the temperature insulation plate (32) is correspondingly provided with two groups of the positioning clamping grooves (52) for plug-in installing the positioning clamps (51).

6. The injection mold fixing device for environmentally friendly plastic product production of claim 5, wherein: The top outer wall of the positioning clamp (51) is throughly provided with a first threaded groove (53), the top outer wall of the temperature insulation plate (32) is correspondingly provided with a second threaded groove (54), and the first threaded groove (53) and the second threaded groove (54) are threadedly installed with the fastening bolts (55).

7. The injection mold fixing device for environmentally friendly plastic product production of claim 6, wherein: The outer surface of the fastening bolt (55) at the rotating end position is provided with vertical anti-skid lines.