Rope limiting structure and soft rope plastic molding die

Abstract

The utility model provides a kind of rope body limiting structure and soft rope package plastic mould, belong to injection mould technical field, including for being installed on the lower limit block of static mould and for being installed on the upper limit block of movable mould, upper limit block and lower limit block are oppositely arranged in height direction;Upper limit block and lower limit block constitute limit hole between, limit hole circumferential clamping rope body is used to limit the circumferential deviation of rope body, the inner wall of limit hole is provided with limit protrusion, limit protrusion abuts at the outer wall of rope body for limiting the axial deviation of rope body.The utility model provides a kind of rope body limiting structure, can solve the problem that rope body is not tightly packed due to deviation, significantly improve the yield of hoisting rope injection molding, reduce unqualified product, reduce production cost, improve production efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of injection mold technology, and more specifically, it relates to a rope limiting structure and a soft rope wrapping mold. Background Technology

[0002] In the battery manufacturing industry, the rope injection molding process is a crucial step in ensuring the safety and convenience of product transportation. This process mainly includes two core steps: rope end injection molding and handle plastic wrapping. The aim is to encapsulate the rope with molten plastic at high temperatures, forming a robust connection structure. However, in actual production, due to the softness and lack of rigid support of the rope material, it is highly susceptible to displacement during mold closing and plastic injection due to the impact of the high-pressure molten material within the mold, resulting in gaps between the rope and the mold cavity. Furthermore, even minor deviations in rope placement during manual or automated feeding are amplified when the mold closes, leading to a suboptimal position of the rope within the cavity.

[0003] The aforementioned issues, resulting in inadequate plastic coating on the lifting rope, can lead to defects such as air bubbles and voids between the plastic coating and the lifting rope. This severely weakens the bond strength between the two, directly affecting the battery's tensile strength and creating a risk of rope breakage during transport. Utility Model Content

[0004] The purpose of this utility model is to provide a rope limiting structure, which aims to solve the problem of incomplete plastic coating caused by the displacement of the lifting rope due to factors such as the impact force of high-pressure molten material in the mold and the deviation of material feeding.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a rope limiting structure, including a lower limiting block for mounting on a stationary mold and an upper limiting block for mounting on a moving mold, wherein the upper limiting block and the lower limiting block are arranged opposite to each other in the height direction;

[0006] The upper limit block and the lower limit block form a limiting hole, which circumferentially clamps the rope to limit its circumferential displacement. The inner wall of the limiting hole is provided with a limiting protrusion, which abuts against the outer wall of the rope to limit its axial displacement.

[0007] In one possible implementation, the upper end of the lower limit block is provided with a lower limit groove, the lower end of the upper limit block is provided with an upper limit groove, the lower limit groove and the upper limit groove are arranged opposite to each other to form the limiting hole, and the limiting protrusion is located on the inner wall of the lower limit groove and / or the inner wall of the upper limit groove.

[0008] In one possible implementation, the upper end of the lower limiting block is provided with a insertion recess, and the lower limiting groove is located within the insertion recess;

[0009] The lower end of the upper limit slot is provided with a plug-in protrusion, and the upper limit slot is located inside the plug-in protrusion;

[0010] The insertion recess and the insertion protrusion are inserted and fitted together.

[0011] In one possible implementation, the limiting protrusion includes:

[0012] An upper protrusion is located at the top of the inner wall of the limiting hole;

[0013] The lower protrusion is located at the bottom of the inner wall of the limiting hole;

[0014] The upper protrusion and the lower protrusion are arranged asymmetrically.

[0015] In one possible implementation, there are multiple upper protrusions, and the multiple upper protrusions are arranged sequentially along the axial direction of the limiting hole;

[0016] The number of the lower protrusions is multiple, and the multiple lower protrusions are arranged sequentially along the axial direction of the limiting hole;

[0017] Both the upper protrusion and the lower protrusion are asymmetrically arranged.

[0018] In one possible implementation, an upper limit pin is longitudinally inserted inside the upper limit block, and the lower end of the upper limit pin is inserted into the limiting hole to form the upper protrusion.

[0019] The upper limit block has a lower limit pin inserted longitudinally inside, and the upper end of the lower limit pin is inserted into the limiting hole to form the lower protrusion.

[0020] In one possible implementation, the top of the upper limit pin is provided with an upper end head, which is used to limit the length of the upper protrusion that penetrates the limiting hole;

[0021] The bottom of the lower limiting pin is provided with a lower end, which is used to limit the length of the lower protrusion that penetrates the limiting hole.

[0022] In one possible implementation, the top of the upper limit block has an upper receiving groove for accommodating the upper end head, and the bottom of the lower limit block has a lower receiving groove for accommodating the lower end head.

[0023] In one possible implementation, the upper limit block is a sealing structure block.

[0024] The beneficial effects of the rope limiting structure provided by this utility model are as follows: Compared with the prior art, the upper limiting block is installed in the moving mold, and the lower limiting block is installed in the stationary mold. The two are set opposite each other in the height direction, and the limiting hole formed in the middle can circumferentially clamp the rope, effectively preventing the rope from shifting circumferentially due to the impact of high-pressure molten material in the mold or deviations in manual or automated rope feeding. This allows the plastic coating layer to evenly wrap the rope, avoiding incomplete coating and uneven thickness, and ensuring the tensile strength of the rope. The limiting protrusion on the inner wall of the limiting hole abuts against the outer wall of the rope, restricting the axial displacement of the rope and preventing the rope from moving axially during injection molding. This ensures the relative position stability of the rope and the mold cavity, reduces defects such as air bubbles and voids between the plastic coating layer and the rope, enhances the bonding strength, and reduces the risk of rope breakage during handling. The rope limiting structure provided by this utility model can solve the problem of incomplete plastic coating caused by rope displacement, significantly improving the yield rate of rope injection molding, reducing defective products, lowering production costs, and improving production efficiency.

[0025] This utility model also provides a soft rope wrapping mold, including the rope limiting structure mentioned above.

[0026] The beneficial effects of the soft rope plastic wrapping mold provided by this utility model are as follows: Compared with the prior art, since the soft rope plastic wrapping mold uses the above-mentioned rope limiting structure, it has the same beneficial effects as the rope limiting structure, which will not be elaborated here. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art 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.

[0028] Figure 1 A schematic diagram of a rope limiting structure provided by this utility model;

[0029] Figure 2 A structural diagram illustrating the usage state of a rope limiting structure provided by this utility model;

[0030] Figure 3 A cross-sectional view of a rope limiting structure in use according to this utility model;

[0031] Figure 4 Schematic diagram of the structure of the lower limit block provided by this utility model Figure 1 ;

[0032] Figure 5 Schematic diagram of the structure of the lower limit block provided by this utility model Figure 2 ;

[0033] Figure 6 Schematic diagram of the upper limit block provided by this utility model Figure 1 ;

[0034] Figure 7 Schematic diagram of the upper limit block provided by this utility model Figure 2 ;

[0035] Figure 8 This is a schematic diagram of the structure of the lower limit pin provided by this utility model;

[0036] Figure 9 A schematic diagram of the upper limit pin provided by this utility model.

[0037] In the picture:

[0038] 100. Lower limit block; 110. Insertion recess; 120. Lower limit groove; 130. Lower limit pin; 131. Lower protrusion; 132. Lower end; 140. Lower receiving groove; 200. Upper limit block; 210. Insertion protrusion; 220. Upper limit groove; 230. Upper limit pin; 231. Upper protrusion; 232. Upper end; 240. Upper receiving groove; 300. Limiting hole; 400. Rope. Detailed Implementation

[0039] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0040] Unless otherwise explicitly specified, the use of terms such as "first," "second," or "third" is intended to distinguish different objects, not to describe a specific order.

[0041] Unless otherwise expressly defined, the use of directional terms such as “center,” “lateral,” “longitudinal,” “horizontal,” “vertical,” “top,” “bottom,” “inner,” “outer,” “upper,” “lower,” “front,” “back,” “left,” “right,” “clockwise,” “counterclockwise,” “high,” and “low” to indicate orientation or positional relationships is based on the orientation and positional relationships shown in the accompanying drawings and is only for the convenience of describing the present invention and simplifying the description. It is not intended to indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific protection scope of the present invention.

[0042] Please see Figures 1 to 3The present invention provides a rope limiting structure. A rope limiting structure includes a lower limiting block 100 for mounting on a stationary mold and an upper limiting block 200 for mounting on a moving mold. The upper limiting block 200 and the lower limiting block 100 are arranged opposite each other in the height direction. A limiting hole 300 is formed between the upper limiting block 200 and the lower limiting block 100. The limiting hole 300 circumferentially clamps the rope 400 to limit its circumferential displacement. A limiting protrusion is provided on the inner wall of the limiting hole 300, and the limiting protrusion abuts against the outer wall of the rope 400 to limit its axial displacement.

[0043] This utility model provides a rope limiting structure. Compared with the prior art, the upper limiting block 200 is installed in the moving mold, and the lower limiting block 100 is installed in the stationary mold. The two are set opposite each other in the height direction, and the limiting hole 300 formed in the middle can circumferentially clamp the rope 400. This effectively prevents the rope from shifting circumferentially due to the impact of high-pressure molten material in the mold or deviations in manual or automated rope feeding. It ensures that the plastic coating layer can evenly wrap the rope, avoiding incomplete plastic coating and uneven thickness, and ensuring the tensile strength of the rope. The limiting protrusion on the inner wall of the limiting hole 300 abuts against the outer wall of the rope 400, limiting the axial displacement of the rope and preventing the rope from moving axially during injection molding. This ensures the relative position stability of the rope and the mold cavity, reduces defects such as air bubbles and voids between the plastic coating layer and the rope, enhances the bonding strength, and reduces the risk of rope breakage during handling. The rope limiting structure provided by this utility model can solve the problem of incomplete plastic coating caused by rope 400 deviation, significantly improve the yield rate of rope injection molding, reduce defective products, reduce production costs, and improve production efficiency.

[0044] Please see Figure 4 and Figure 6 The lower limit block 100 has a lower limit groove 120 at its upper end, and the upper limit block 200 has an upper limit groove 220 at its lower end. The lower limit groove 120 and the upper limit groove 220 are arranged opposite each other to form a limiting hole 300. The limiting protrusion is located on the inner wall of the lower limit groove 120 and / or the inner wall of the upper limit groove 220. The lower limit block 100 has a lower limit groove 120 at its upper end, and the upper limit block 200 has an upper limit groove 220 at its lower end. The two are arranged opposite each other to form a limiting hole 300, and the limiting protrusion is located on the corresponding inner wall. The separate upper limit groove 220 and lower limit groove 120 structure reduces the processing difficulty, facilitates the guarantee of dimensional accuracy and surface quality, and makes alignment and assembly easier during installation, thereby improving production and assembly efficiency. The two opposing upper limit grooves 220 and lower limit grooves 120 can constrain the rope 400 in multiple directions. Compared with the single-structure limit hole 300, it can better resist the external forces on the rope 400 during injection molding, effectively reducing the possibility of circumferential displacement of the rope 400 and ensuring the uniformity and stability of the coating. In addition, the flexible setting of the position of the limit protrusions can be adjusted according to the material and thickness of the rope 400 and the actual injection molding process requirements.

[0045] Furthermore, the upper end of the lower limit block 100 is provided with an insertion recess 110, and the lower limit groove 120 is located within the insertion recess 110; the lower end of the upper limit groove 220 is provided with an insertion protrusion 210, and the upper limit groove 220 is located within the insertion protrusion 210; the insertion recess 110 and the insertion protrusion 210 are inserted and fitted together. The inserted protrusion 210 and the insertion recess 110 can accurately align with the upper and lower limit grooves 120, ensuring the positional accuracy of the limit hole 300, reducing the relative displacement of the limit block under injection pressure, stabilizing the limit of the rope 400, and improving the coating quality. During installation and maintenance, its convenient insertion method facilitates the assembly and disassembly of the mold, and can effectively reduce downtime and lower costs when the limit block needs to be replaced due to problems. In addition, the structure is versatile. By designing plug-in components of different specifications, it can be adapted to various ropes and molds, reducing mold development costs, improving usage flexibility, and meeting diverse production needs.

[0046] Please see Figure 2 The limiting protrusions include an upper protrusion 231 and a lower protrusion 131. The upper protrusion 231 is located at the top of the inner wall of the limiting hole 300; the lower protrusion 131 is located at the bottom of the inner wall of the limiting hole 300; the upper protrusion 231 and the lower protrusion 131 are arranged asymmetrically. Because the forces acting on the rope 400 during injection molding are complex and not completely uniformly distributed, the asymmetrical upper and lower protrusions 131 can apply limiting forces to the rope 400 from different angles and with different strengths, better adapting to these complex force conditions. In actual production, ropes 400 of different materials and thicknesses, as well as different injection molding process requirements, all require targeted limiting solutions. By adjusting the shape, size, number, and degree of asymmetry of the upper protrusion 231 and the lower protrusion 131, the limiting effect can be flexibly optimized.

[0047] Preferably, there are multiple upper protrusions 231, arranged sequentially along the axial direction of the limiting hole 300; there are also multiple lower protrusions 131, arranged sequentially along the axial direction of the limiting hole 300; both the upper and lower protrusions 231 and 131 are asymmetrically arranged. The sequential arrangement of multiple upper and lower protrusions 231 along the axial direction increases the contact points and constraint area with the rope 400. During injection molding, constraint forces can be applied to the rope 400 from multiple positions, forming a comprehensive, multi-layered constraint system. Even if the rope 400 is subjected to complex and variable external forces in the axial direction, it can be effectively constrained, significantly reducing the possibility of axial displacement. This dense constraint layout allows for precise control of the position of the rope 400 in the mold, ensuring a tight fit between the plastic coating layer and the rope 400, avoiding incomplete coating due to axial displacement, and significantly improving the tensile strength and product quality of the lifting rope. The asymmetrical arrangement of any upper protrusion 231 and any lower protrusion 131 allows the limiting structure to better cope with the complex and uneven external forces exerted on the rope 400 during injection molding. Protrusions at different positions can be tailored to adjust the constraint force on the rope 400 according to the force characteristics. Furthermore, this asymmetrical, multi-protrusion design allows for flexible adaptation to ropes 400 of different materials, thicknesses, and elasticities.

[0048] Please see Figure 2 , Figure 8 as well as Figure 9 The upper limit block 200 has an upper limit pin 230 longitudinally inserted inside, with the lower end of the upper limit pin 230 passing through a limiting hole 300 to form an upper protrusion 231. The upper limit block 200 also has a lower limit pin 130 longitudinally inserted inside, with the upper end of the lower limit pin 130 passing through a limiting hole 300 to form a lower protrusion 131. During mold manufacturing, machining the limit pins individually is simpler and allows for more precise control of their dimensional accuracy and shape, ensuring the limiting protrusion meets design requirements. Furthermore, when the limiting protrusion wears or is damaged due to long-term use, only the corresponding limit pin needs to be replaced, eliminating the need to replace the entire limiting block. This significantly reduces maintenance and time costs, and improves mold lifespan and production efficiency. In addition, the design of the upper and lower limit pins 130 allows for flexible adjustment of the position and height of the limiting protrusion. In actual production, depending on the characteristics of different ropes 400 and the requirements of the injection molding process, the height of the limiting protrusion can be changed by adjusting the depth of the limiting pin entering the limiting hole 300, thereby adjusting the limiting force on the rope 400. At the same time, it is also possible to easily replace limiting pins of different sizes to change the shape and size of the limiting protrusion, meeting diverse production needs and enhancing the versatility and adaptability of the rope limiting structure.

[0049] Preferably, the upper limit pin 230 has an upper end 232 at its top, which limits the length of the upper protrusion 231 that penetrates the limiting hole 300; the lower limit pin 130 has a lower end 132 at its bottom, which limits the length of the lower protrusion 131 that penetrates the limiting hole 300. By limiting the length of the upper and lower limit pins 130 that penetrate the limiting hole 300 through the upper end 232 and the lower end 132 respectively, the dimensions of the upper and lower protrusions 231 and 131 can be precisely controlled. In injection molding production, ropes 400 of different specifications require matching limiting protrusion dimensions to achieve the best limiting effect. This precise control ensures that the rope 400 can be stably limited during the production process of each product, avoiding inaccurate rope limiting due to inconsistent limiting protrusion dimensions, thereby ensuring the stability and consistency of the rope coating quality and reducing the defect rate.

[0050] Preferably, the upper limit block 200 has an upper receiving groove 240 at its top for accommodating the upper end head 232, and the lower limit block 100 has a lower receiving groove 140 at its bottom for accommodating the lower end head 132. The upper receiving groove 240 and the lower receiving groove 140 provide specific receiving spaces for the upper end head 232 and the lower end head 132, making the overall limiting structure layout more compact and reasonable. Within the limited space inside the mold, interference with other components that may be caused by the protruding end head is avoided, ensuring that the various parts of the mold are tightly and orderly combined. This saves space, improves the overall stability and reliability of the mold, and ensures a smooth injection molding process.

[0051] Specifically, the upper limit block 200 is a sealing structure block that can tightly fit other parts of the mold, forming an effective seal around the rope 400. This prevents plastic from overflowing from the gap between the upper limit block and other parts of the mold, avoiding excess plastic flash, burrs, and other defects around the rope 400, ensuring the molding quality of the plastic coating layer, and making the surface of the plastic-coated rope smooth and regular, meeting product design requirements. At the same time, it avoids uneven plastic coating of the rope 400 caused by plastic overflow, ensuring a tight bond between the plastic coating layer and the rope 400, thereby improving the tensile strength of the rope. Furthermore, designing the upper limit block 200 as a sealing structure block eliminates the need for additional complex sealing components while maintaining the sealing function of the mold. This not only simplifies the overall structure of the mold, reduces the number of mold parts, lowers the processing difficulty and manufacturing cost, but also reduces the workload of mold assembly and debugging. Simultaneously, due to the simplified structure, mold maintenance and upkeep are more convenient, reducing later operating costs and improving production efficiency.

[0052] Based on the same inventive concept, this utility model also provides a soft rope plastic wrapping mold, which uses the above-mentioned rope limiting structure, and therefore has the same beneficial effects as the rope limiting structure, which will not be described in detail here.

[0053] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rope limiting structure, characterized in that, It includes a lower limit block (100) for mounting on a stationary mold and an upper limit block (200) for mounting on a moving mold, the upper limit block (200) and the lower limit block (100) being arranged opposite to each other in the height direction; A limiting hole (300) is formed between the upper limit block (200) and the lower limit block (100). The limiting hole (300) circumferentially clamps the rope body (400) to limit the circumferential displacement of the rope body (400). A limiting protrusion is provided on the inner wall of the limiting hole (300). The limiting protrusion abuts against the outer wall of the rope body (400) to limit the axial displacement of the rope body (400).

2. The rope limiting structure as described in claim 1, characterized in that, The lower limit block (100) is provided with a lower limit groove (120) at its upper end, and the upper limit block (200) is provided with an upper limit groove (220) at its lower end. The lower limit groove (120) and the upper limit groove (220) are arranged opposite to each other to form the limiting hole (300). The limiting protrusion is located on the inner wall of the lower limit groove (120) and / or the inner wall of the upper limit groove (220).

3. The rope limiting structure as described in claim 2, characterized in that, The upper end of the lower limiting block (100) is provided with a plug-in recess (110), and the lower limiting groove (120) is located in the plug-in recess (110); The lower end of the upper limit groove (220) is provided with a plug-in protrusion (210), and the upper limit groove (220) is located inside the plug-in protrusion (210); The insertion recess (110) and the insertion protrusion (210) are inserted into each other.

4. The rope limiting structure as described in claim 1, characterized in that, The limiting protrusion includes: An upper protrusion (231) is located at the top of the inner wall of the limiting hole (300); The lower protrusion (131) is located at the bottom of the inner wall of the limiting hole (300); The upper protrusion (231) and the lower protrusion (131) are arranged asymmetrically.

5. The rope limiting structure as described in claim 4, characterized in that, The number of the upper protrusions (231) is multiple, and the multiple upper protrusions (231) are arranged sequentially along the axial direction of the limiting hole (300); The number of the lower protrusions (131) is multiple, and the multiple lower protrusions (131) are arranged sequentially along the axial direction of the limiting hole (300); Both the upper protrusion (231) and the lower protrusion (131) are arranged asymmetrically.

6. The rope limiting structure as described in claim 4, characterized in that, The upper limit block (200) has an upper limit pin (230) inserted longitudinally inside, and the lower end of the upper limit pin (230) is inserted into the limiting hole (300) to form the upper protrusion (231). The upper limit block (200) has a lower limit pin (130) inserted longitudinally inside, and the upper end of the lower limit pin (130) is inserted into the limit hole (300) to form the lower protrusion (131).

7. The rope limiting structure as described in claim 6, characterized in that, The upper limit pin (230) is provided with an upper end head (232) at its top, and the upper end head (232) is used to limit the length of the upper protrusion (231) that passes through the limiting hole (300); The bottom of the lower limiting pin (130) is provided with a lower end (132), which is used to limit the length of the lower protrusion (131) that passes through the limiting hole (300).

8. The rope limiting structure as described in claim 7, characterized in that, The upper limit block (200) has an upper receiving groove (240) at its top for accommodating the upper end (232), and the lower limit block (100) has a lower receiving groove (140) at its bottom for accommodating the lower end (132).

9. A rope limiting structure as described in any one of claims 1-8, characterized in that, The upper limit block (200) is a sealing structure block.

10. A soft rope-wrapped plastic mold, characterized in that, Includes the rope limiting structure as described in any one of claims 1-9.

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