Die with movable nylon shutter

By introducing movable nylon openers and guides into the mold, the problem of poor mold closing accuracy caused by wear of the nylon openers was solved, and normal mold closing and accuracy improvement were achieved.

CN223820999UActive Publication Date: 2026-01-23KUNSHAN XINYUETONG PRECISION MOULD CO LTD
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Patent Information

Application Number
CN202423323808.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2026-01-23
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

Existing nylon snap fasteners and resin openers are prone to deformation and wear after prolonged use, which can cause molds to fail to close properly and result in poor precision.

Method used

Design a mold with a movable nylon opener/closer. By installing the nylon opener/closer and a movable block on the mother mold, the mother mold and the male mold are closed first using guide components and control components. Then, the nylon opener/closer is pressed into the male mold by the pusher plate, thus avoiding the mold closing accuracy problem caused by the nylon opener/closer.

Benefits of technology

This effectively avoids the problem of poor mold closing accuracy caused by wear of nylon openers and closers, ensuring that the mold can close normally and improving the service life and accuracy of the mold.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a mould with a movable nylon shutter, which comprises a female mould plate, the nylon shutter movably mounted on the female mould plate and a shifting plate for pressing the nylon shutter, the female mould plate is provided with an accommodating hole penetrating through the upper surface and the lower surface of the female mould plate, the nylon shutter is fixedly connected with a movable block, and the shifting plate is fixedly connected with the movable block. The nylon shutter penetrates through the accommodating hole from the upper part of the female template and extends out of the lower surface of the female template, and the female template supports the movable block; the male mold comprises a male mold plate, the male mold plate is provided with a groove which is formed by sinking inwards from the surface of the male mold plate, and the groove corresponds to the containing hole; the male mold plate extrudes the nylon shutter and the movable block to vertically move upwards in the accommodating hole, so that the female mold plate and the male mold plate are firstly closed, the shifting plate moves towards the female mold plate, and the nylon shutter and the movable block are pressed to vertically move downwards in the accommodating hole, so that the nylon shutter enters the male mold plate, and poor precision caused by the nylon shutter is avoided; and normal mold closing cannot be realized.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of molds, in particular to a mold with a movable nylon opening and closing device. BACKGROUND

[0002] Mold, various molds and tools used in industrial production to obtain the desired product by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping, etc., including male and female molds, which need to be opened after the flow channel plate and the face plate and the fixed mold plate.

[0003] According to the patent CN216860446U, an injection molding mold for a camera base is disclosed, which includes a fixed mold and a movable mold. A nylon puller resin opening and closing device is arranged between the fixed mold and the movable mold. The nylon puller resin opening and closing device has strong mold adhesion on the side, which can control the mold opening sequence. Because the nylon puller resin opening and closing device has a large friction force, the fixed mold and the movable mold cannot be opened at first. Only when the movable mold contacts the limit block and the mold opening force of the injection molding machine is greater than the friction force, the mold can be opened. However, after long-term use of the nylon puller resin opening and closing device, deformation and wear occur, resulting in poor precision of the nylon opening and closing device, which makes the fixed mold and the movable mold unable to normally close.

[0004] Therefore, it is necessary to develop a mold with a movable nylon opening and closing device to solve the above problems. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at providing a mold with a movable nylon opening and closing device which can avoid the problem of being unable to normally close.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a mold with a movable nylon opening and closing device, which comprises:

[0007] The female mold comprises a female mold plate, a nylon opening and closing device movably installed on the female mold plate, and a pushing plate pressing the nylon opening and closing device. The female mold plate has a receiving hole penetrating through its upper and lower surfaces. The nylon opening and closing device is fixedly connected with a movable block. The nylon opening and closing device passes through the receiving hole from above the female mold plate and extends out of the lower surface of the female mold plate. The female mold plate supports the movable block.

[0008] The male mold comprises a male mold plate. The male mold plate has a groove recessed inward from its surface. The groove corresponds to the receiving hole.

[0009] Further, a limiting step is arranged in the receiving hole and recessed inward from the female mold plate. The movable block abuts against the limiting step.

[0010] Further, the two sides of the movable block are outwardly protruded to form limiting blocks, the limiting blocks can abut against the limiting steps to limit the movable block from staying in the female mold plate.

[0011] Further, a guide is installed on the limiting step, one end of the guide is fixed on the limiting step, the other end extends to the direction of the accommodating hole, the limiting block is inwardly recessed to form a guide groove, the guide extends into the guide groove.

[0012] Further, the nylon opener comprises a fixed bolt, a nylon piece sleeved with the fixed bolt, the fixed bolt is fixedly connected with the lower surface of the movable block through penetrating the nylon piece, and the nylon piece is located below the movable block.

[0013] Further, a pipe control assembly is installed on the female mold and the male mold, the pipe control assembly comprises a fixed block fixedly connected with the female mold and a locking block connected with the female mold plate, the fixed block is provided with a fixed shaft, the fixed shaft is sleeved with a spring, and the spring applies pressure to the locking block.

[0014] Further, the pipe control assembly is provided with a locking part connected with the male mold plate, the locking part is provided with a locking rod, the locking rod is provided with a locking protrusion used for clamping the locking block, the fixed shaft is provided with a pushing block, and the pushing block pushes the locking protrusion to be separated from the clamping connection with the locking block.

[0015] Further, the locking block is inwardly and obliquely recessed from the upper surface to form a locking groove, and the locking protrusion extends into or exits from the locking groove.

[0016] Further, the end of the fixed shaft is provided with a pushing rod, the top of the pushing rod is fixedly connected with the fixed shaft, the bottom of the pushing rod extends vertically downward, and the pushing block is installed at the end of the pushing rod.

[0017] Further, one side of the pushing block is fixedly connected with the pushing rod, the other side extends outwardly, and the top of the pushing block forms an inclined downward inclined surface.

[0018] Compared with the prior art, the mold with the movable nylon opener has the characteristics that normal mold closing cannot be avoided, the male mold plate extrudes the nylon opener and the movable block to vertically move upward in the accommodating hole, the female mold plate and the male mold plate are firstly closed, the pushing plate moves to the female mold plate, the nylon opener and the movable block are pressed to vertically move downward in the accommodating hole, the nylon opener enters the male mold plate, the poor precision caused by the nylon opener is avoided, and normal mold closing cannot be achieved. BRIEF DESCRIPTION OF DRAWINGS

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0020] Figure 1 This is a three-dimensional structural diagram of a mold with a movable nylon opener during mold opening according to the present invention;

[0021] Figure 2 for Figure 1 The diagram shows the mother template structure of a mold with a movable nylon opener / closer.

[0022] Figure 3 for Figure 2 The diagram shows a nylon opener / closer structure of a mold with a movable nylon opener / closer.

[0023] Figure 4 for Figure 1 The diagram shows the control assembly structure of a mold with a movable nylon opener / closer.

[0024] Figure 5 for Figure 4 The diagram shows a partial structural schematic of the control assembly of a mold with a movable nylon opener / closer.

[0025] Figure 6 for Figure 4 The diagram shows a cross-sectional view of a mold with a movable nylon opener / closer.

[0026] In the diagram: 1. Female mold; 2. Male mold; 3. Nylon opener / closer; 4. Control component; 11. Female mold fixing plate; 12. Female mold runner plate; 13. Material ejector plate; 14. Female mold template; 15. Guide post; 141. Receiving hole; 142. Limiting step; 143. Guide component; 21. Male mold fixing plate; 22. Mold foot plate; 23. Male mold template; 24. Positioning hole; 25. Groove; 31. Fixing bolt; 32. Nylon component; 33. Movable block; 331. Limiting... 332. Positioning block; 433. Guide groove; 44. Fixing block; 45. Locking block; 46. Locking part; 47. Fixing shaft; 48. Spring; 49. Lever; 40. Lever block; 41. First through hole; 422. Second through hole; 423. Through space; 424. Locking groove; 435. Locking fixing block; 436. Locking rod; 437. Elastic element; 438. Third through hole; 439. Fourth through hole; 430. Limiting shaft; 431. Locking protrusion. Detailed Implementation

[0027] 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.

[0028] Please refer to Figures 1 to 6 This utility model is a mold with a movable nylon opener and closer, which includes a female mold 1, a male mold 2 that is connected to the female mold 1, a nylon opener and closer 3 installed in the female mold 1, and a control component 4 located outside the female mold 1 and the male mold 2.

[0029] Please refer to Figures 1 to 2 The female mold 1 includes a female mold fixing plate 11, a female mold runner plate 12 fixedly connected to the female mold fixing plate 11, a material ejector plate 13 and a female mold template 14 located below the female mold runner plate 12. The female mold fixing plate 11 is used to support the female mold runner plate 12, the material ejector plate 13 and the female mold template 14, so that the female mold runner plate 12, the material ejector plate 13 and the female mold template 14 are in a horizontal state. The female mold runner plate 12 is provided with a guide post 15. One end of the guide post 15 is fixedly connected to the female mold runner plate 12, and the other end extends vertically downward and penetrates the material ejector plate 13 and the female mold template 14. The material ejector plate 13 and the female mold template 14 move along the guide post 15.

[0030] The material ejector plate 13 and the female mold plate 14 are separable from the female mold runner plate 12. Specifically, both the female mold plate 14 and the material ejector plate 13 are fitted with guide posts 15, which move synchronously with the female mold runner plate 12. When the mold is closed, the female mold plate 14 first contacts the male mold 2 and closes with the male mold 2, and then the material ejector plate 13 closes with the female mold plate 14. The female mold runner plate 12 closes with the material ejector plate 13.

[0031] The mother template 14 has a receiving hole 141 that runs through its upper and lower surfaces. A limiting step 142 is provided on the outside of the receiving hole 141. The limiting step 142 is formed by recessing from the upper surface of the mother template 14. A guide 143 is installed on the limiting step 142. One end of the guide 143 is fixed on the limiting step 142, and the other end extends toward the receiving hole 141.

[0032] Please refer to Figure 1 The male mold 2 includes a male mold fixing plate 21, a mold foot plate 22 fixedly connected to the male mold fixing plate 21, and a male template 23. The male mold fixing plate 21 is used to support the mold foot plate 22 and the male template 23, so that the mold foot plate 22 and the male template 23 are in a horizontal state. The male mold 2 also includes a positioning hole 24, which passes through the male mold fixing plate 21, the mold foot plate 22 and the male template 23 in sequence, and corresponds to the guide post 15. The guide post 15 can enter the positioning hole 24.

[0033] The male template 23 has a groove 25 formed inward from its surface, which corresponds to the receiving hole 141.

[0034] Please refer to Figure 3 The nylon opener / closer 3 includes a fixing bolt 31, a nylon part 32 sleeved on the fixing bolt 31, and a movable block 33 fixedly connected to the fixing bolt 31. The fixing bolt 31 passes through the nylon part 32 and is fixedly connected to the lower surface of the movable block 33. The nylon part 32 is located below the movable block 33.

[0035] Preferably, the two sides of the movable block 33 protrude outward to form a limiting block 331. The limiting block 331 can abut against the limiting step 142 to restrict the movable block 33 to remain in the mother template 14. The limiting block 331 is recessed inward from the surface to form a guide groove 332. The guide member 143 extends into the guide groove 332, so that the movable block 33 moves vertically along the guide member 143.

[0036] Please refer to Figures 4 to 6 The control component 4 includes a fixing block 41 and a locking block 42 installed on the female mold 1, and a locking part 43 installed on the male mold 2. The fixing block 41 is fixed to the side surface of the flow channel plate 12 of the female mold, and a fixing shaft 44 is fixedly installed on it. The top of the fixing shaft 44 is fixedly connected to the fixing block 41, and its bottom extends vertically downward. The extension length can be changed according to the requirements. A spring 45 is sleeved on the fixing shaft 44. The two ends of the spring 45 are locked to the two ends of the fixing shaft 44. A lever 46 is installed at the end of the fixing shaft 44. The top of the lever 46 is fixedly connected to the fixing shaft 44, and its bottom extends vertically downward. A lever block 47 is provided at the end of the lever 46. One side of the lever block 47 is fixedly connected to the lever 46, and the other side extends outward. Its top forms an inclined downward slope.

[0037] Please refer to Figures 5 to 6 The locking block 42 is installed on the side surface of the mother template 14, located below the fixing block 41 and the fixing shaft 44. The locking block 42 has a first through hole 421 and a second through hole 422. The first through hole 421 and the second through hole 422 both penetrate the upper and lower surfaces of the locking block 42. The opposite sides of the first through hole 421 and the second through hole 422 are connected to each other to form a passage space 423. Preferably, the locking block 42 has a locking groove 424 formed by an inward inclination from the upper surface. The locking groove 424 is located between the first through hole 421 and the second through hole 422, and is provided on both sides of the passage space 423. The fixing shaft 44 and the lever 46 can pass through the first through hole 421, so that the lever 47 can enter or exit the passage space 423.

[0038] The locking part 43 includes a locking block 431, a locking rod 432 installed in the locking block 431, and an elastic member 433 for pushing the locking rod 432. The locking block 431 is installed on the side surface of the male template 23 and is located below the locking block 42. It has a third through hole 434 and a fourth through hole 435 that penetrate its upper and lower surfaces. The third through hole 434 and the fourth through hole 435 correspond to the first through hole 421 and the second through hole 422. The locking rod 432 is installed in the fourth through hole 435. The locking part 43 is provided with a limiting shaft 436. The limiting shaft 436 penetrates the locking block 431 and extends into the fourth through hole 435, penetrating the bottom of the locking rod 432. The locking rod 432 rotates within the fourth through hole 435 with the limiting shaft 436 as the center. A locking protrusion 437 is formed on the top of the locking rod 432. The locking protrusion 437 extends toward the fixing shaft 44 and can extend into or out of the locking groove 424.

[0039] One end of the elastic element 433 abuts against the locking block 431, and the other end abuts against the side of the locking rod 432.

[0040] When using the mold with a movable nylon opener and closer, the female mold plate 14 and the male mold plate 23 cannot be completely closed due to precision, tolerance and other reasons. As the female mold plate 14 moves continuously towards the male mold plate 23, the male mold plate 23 squeezes the nylon opener and closer 3 and the movable block 33 into the receiving hole 141 and moves vertically upward along the guide member 143. The female mold plate 14 and the male mold plate 23 close first. Then the material ejector plate 13 moves towards the female mold plate 14, pressing the nylon opener and closer 3 and the movable block 33 into the receiving hole 141 and moving vertically downward along the guide member 143, so that the nylon opener and closer 3 enters the male mold 2.

[0041] This utility model is a mold with a movable nylon opener / closer, which avoids the inability to close the mold properly. The male mold plate forces the nylon opener / closer and the movable block to move vertically upward in the receiving hole, so that the female mold plate and the male mold plate close the mold first. Then the material ejector plate moves towards the female mold plate, pressing the nylon opener / closer and the movable block to move vertically downward in the receiving hole, so that the nylon opener / closer enters the male mold plate. This avoids the nylon opener / closer causing poor precision and the inability to close the mold properly.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A mold with a movable nylon opener / closer, characterized in that, It includes: The master mold (1) includes a master template (14), a nylon opener / closer (3) movably mounted on the master template (14), and a pusher plate (13) that presses the nylon opener / closer (3). The master template (14) has a receiving hole (141) penetrating its upper and lower surfaces. The nylon opener / closer (3) is fixedly connected to a movable block (33). The nylon opener / closer (3) passes through the receiving hole (141) from above the master template (14) and extends out of the lower surface of the master template (14). The master template (14) supports the movable block (33). The male mold (2) includes a male template (23) having a groove (25) formed inwardly from its surface, the groove (25) corresponding to the receiving hole (141).

2. The mold with a movable nylon opener / closer according to claim 1, characterized in that, The receiving hole (141) is provided with a limiting step (142) that is recessed inward from the mother template (14), and the movable block (33) abuts against the limiting step (142).

3. The mold with a movable nylon opener / closer according to claim 2, characterized in that, The movable block (33) protrudes outward on both sides to form a limiting block (331), which can abut against the limiting step (142) to restrict the movable block (33) to remain in the mother template (14).

4. The mold with a movable nylon opener / closer according to claim 3, characterized in that, A guide (143) is installed on the limiting step (142). One end of the guide (143) is fixed on the limiting step (142), and the other end extends toward the receiving hole (141). The limiting block (331) is recessed from the surface to form a guide groove (332), and the guide (143) extends into the guide groove (332).

5. The mold with a movable nylon opener / closer according to claim 1, characterized in that, The nylon opener (3) includes a fixing bolt (31) and a nylon part (32) sleeved on the fixing bolt (31). The fixing bolt (31) passes through the nylon part (32) and is fixedly connected to the lower surface of the movable block (33). The nylon part (32) is located below the movable block (33).

6. The mold with a movable nylon opener / closer according to claim 1, characterized in that, A control component (4) is installed on the outside of the female mold (1) and the male mold (2). The control component (4) includes a fixing block (41) fixedly connected to the female mold (1) and a locking block (42) connected to the female template (14). The fixing block (41) is equipped with a fixing shaft (44), and the fixing shaft (44) is sleeved with a spring (45). The spring (45) applies pressure to the locking block (42).

7. The mold with a movable nylon opener / closer according to claim 6, characterized in that, The control component (4) is connected to the locking part (43) of the public template (23). The locking part (43) is provided with a locking rod (432). The locking rod (432) has a locking protrusion (437) for holding the locking block (42). The fixed shaft (44) has a pusher (47). The pusher (47) pushes the locking protrusion (437) to disengage from the holding connection with the locking block (42).

8. The mold with a movable nylon opener / closer according to claim 7, characterized in that, The locking block (42) has a locking groove (424) formed by an inward inclination from the upper surface, and the locking protrusion (437) extends into or retracts from the locking groove (424).

9. The mold with a movable nylon opener / closer according to claim 7, characterized in that, A lever (46) is installed at the end of the fixed shaft (44). The top of the lever (46) is fixedly connected to the fixed shaft (44), and its bottom extends vertically downward. The lever block (47) is installed at the end of the lever (46).

10. The mold with a movable nylon opener / closer according to claim 9, characterized in that, The lever (47) is fixedly connected to the lever (46) on one side and extends outward on the other side, with its top forming a downward sloping surface.

Citation Information

Patent Citations

  • Injection molding mold for camera base

    CN216860446U