A releasable cable tie production mold and production device

Abstract

The application relates to the technical field of tie band preparation, and discloses a production mold and production device for a releasable tie band, which comprises a left mold group and a right mold group arranged in sequence from left to right, the left mold group comprises a left mold base, the right side of the left mold base is connected with a left mold plate through a supporting leg, a mold core is embedded in the left mold plate, a water gap and a plurality of tie band injection molding cavities communicated with the water gap are arranged in the mold core, a plurality of first ejector pins and second ejector pins, through mutual cooperation between the ejector pin pushing mechanism, the first ejector pins and the second ejector pins, step-by-step separation and demolding of the tie band head end are adopted, the molding convex is separated from the product first, when the second ejector pin is separated from the lock tooth, the lock tooth is deformed to avoid the space, and the tooth damage caused by simultaneous demolding is avoided.

Description

Technical Field

[0001] This invention relates to the field of cable tie production technology, and in particular to a loose cable tie production mold and production device. Background Technology

[0002] Cable ties, also known as wire ties, cable management ties, or locking straps, are straps used to bundle things together. They are generally classified by material into nylon cable ties, stainless steel cable ties, and powder-coated stainless steel cable ties, and by function into self-locking cable ties, label cable ties, snap-on cable ties, tamper-evident (lead-sealed) cable ties, fixed-head cable ties, tag cable ties, pin cable ties, airplane-head cable ties, beaded cable ties, fishbone cable ties, and weather-resistant cable ties, among others.

[0003] In the field of cable tie manufacturing, injection molding is currently the most important product manufacturing process. Traditional cable tie injection molds usually adopt an integral demolding method, that is, after the mold is opened, the cable tie product and the sprue material connected to it are ejected from the mold cavity at one time by the ejector pin mechanism, and then the product and sprue material are separated.

[0004] The existing cable tie injection molding process includes a locking tooth injection fitting part and a locking tooth back molding fitting part designed to form the locking teeth at the head end of the cable tie.

[0005] Because the mold usually has a locking tooth injection fitting part for forming the locking tooth surface and a molding protrusion for forming the groove on the back of the locking tooth, the locking tooth is easily subjected to bidirectional compression by the molding protrusion and the locking tooth injection fitting part during forced demolding, which can easily cause the locking tooth to deform, break or break, seriously affecting the locking performance and pass rate of the product.

[0006] Therefore, it is necessary to invent a cable tie injection mold to solve the above problems. Summary of the Invention

[0007] The purpose of this invention is to provide a loose cable tie production mold and production device to solve the problems existing in the above-mentioned background art.

[0008] A loose cable tie production mold includes a left module and a right module arranged from left to right. The left module includes a left mold base, and a left template is connected to its right side by a support leg. The left template has a mold core embedded inside, and the mold core has a water inlet and multiple cable tie injection molding cavities communicating with the water inlet. Multiple first ejector pins are located on the left side of the sprue and between the left mold base and the left template. One end of each pin extends into the sprue and can push the sprue of the injection molding process. Multiple second ejector pins are located on the left side of the cable tie injection molding cavity and between the left mold base and the left mold plate. Their left ends are located to the left of the first ejector pin, and their right ends extend into the cable tie injection molding cavity. They are used to assist in product demolding and separation of the product from the sprue material. The first panel is slidably sleeved on the left end of the first ejector pin, and a first recessed groove corresponding to the first ejector pin is opened on its left side. The first base plate is connected to its left side by fasteners. The first extrusion plate is disposed in the first groove between the first ejector pin and the first panel; The second panel is slidably fitted onto the left end of the second ejector pin. A second recessed groove corresponding to the second ejector pin is opened on its left side, and a second base plate is connected to its left side by fasteners. The second extrusion plate is disposed in the second groove between the second ejector pin and the second panel; A first pressure sensor is disposed between the first ejector pin and the first extrusion plate; The second pressure sensor is disposed between the second ejector pin and the second extrusion plate; The ejector pin pushing mechanism is located on the right side of the left mold base, and it can push the first base plate and the second base plate to move independently.

[0009] Preferably, the first ejector pin includes a first limiting part, which is disposed in the first sink groove; A columnar portion is disposed on the right side of the first limiting portion and extends into the water mouth cavity; The structural part is located on the right side of the columnar part.

[0010] Preferably, the second ejector pin includes a second limiting portion, which is disposed within the second sink groove; The through portion is located on the right side of the second limiting portion and extends into the cable tie injection molding cavity; The locking tooth injection molding mating part is located on the right side of the through part, and during injection molding, it fits to form the locking tooth at the end of the cable tie; The straight end is located on the right side of the locking tooth injection molding mating part and does not form a limiting position with the locking tooth.

[0011] Preferably, the ejector pin pushing mechanism includes a first pneumatic telescopic rod for pushing the first base plate to move. It is located on the right side of the left mold base, and its telescopic end extends to the first base plate. The second pneumatic telescopic rod, which is used to push the second base plate to move, is located on the right side of the left mold base, and its telescopic end extends to the second base plate.

[0012] Preferably, the cable tie injection molding cavity includes a cable tie head end cavity and a cable tie tail end cavity.

[0013] Preferably, it also includes an air-cooling mechanism, which includes multiple arrayed and interconnected inclined head-end air-cooling channels, which are opened inside the mold core and connected to an air source.

[0014] Preferably, two sets of symmetrically arranged precision positioning components are provided, each precision positioning component including a protrusion, the protrusion being fixed to the side wall of the right module; The recessed block is fixed to the side wall of the left template.

[0015] Preferably, the right module includes a right template, which is disposed to the right of the left template; The right mold base is connected to the right template by fasteners.

[0016] Preferably, the cable tie injection molding cavity is provided with molding protrusions for cooperating to form the back of the cable tie locking teeth.

[0017] The present invention also discloses a releasable cable tie production apparatus, which uses the releasable cable tie production mold to generate releasable cable ties.

[0018] The beneficial effects of this invention are: This invention utilizes the cooperation between the ejector pushing mechanism, the first ejector, and the second ejector to achieve step-by-step separation and demolding from the cable tie head. This allows the molded protrusion to separate from the product first, providing space for the deformation of the locking teeth when the second ejector separates from them, thus avoiding damage to the teeth caused by simultaneous demolding.

[0019] This invention utilizes the cooperation between the ejector push mechanism, the first ejector pin, and the second ejector pin to ensure proper demolding during the separation and demolding process of the molded protrusion from the product. If the pressure value detected by the first pressure sensor is greater than the first preset value or the pressure value detected by the second pressure sensor is greater than the second preset value (both the first and second preset values ​​can be set according to actual conditions), it indicates a demolding abnormality. In this case, an alarm is triggered for maintenance to prevent forced demolding from causing some products to break in the mold and resulting in subsequent mold compression.

[0020] This invention utilizes the cooperation between the ejector push mechanism, the first ejector, and the second ejector to ensure that after the sprue material is separated from the product, if the pressure value detected by the second pressure sensor is greater than zero, it indicates that some sprue material and some product have not been completely separated. At this time, an alarm is triggered for maintenance to prevent subsequent mold compression. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 This is a front view of the mold of the present invention.

[0023] Figure 3 This is a three-dimensional schematic diagram of the left module structure of the present invention.

[0024] Figure 4 This is a schematic diagram of the precision positioning component structure of the present invention.

[0025] Figure 5 This is a schematic diagram showing the structural connection of the first ejector pin, the first pneumatic telescopic rod, the second ejector pin, and the second pneumatic telescopic rod of the present invention.

[0026] Figure 6 This is a cross-sectional view showing the connection between the first ejector pin and the first pneumatic telescopic rod structure of the present invention.

[0027] Figure 7 This is a cross-sectional view showing the connection between the second ejector pin and the second pneumatic telescopic rod structure of the present invention.

[0028] Figure 8 This is a schematic diagram of the structure of the first ejector pin and the second ejector pin in the mold before injection molding according to the present invention.

[0029] Figure 9 This is a schematic diagram of the structure of the first ejector pin and the second ejector pin inside the mold after injection molding according to the present invention.

[0030] Figure 10 This is a schematic diagram of the first ejector pin structure of the present invention.

[0031] Figure 11 This is a schematic diagram of the second ejector pin structure of the present invention.

[0032] Figure 12 For the present invention Figure 6 Enlarged schematic diagram of part A in the middle.

[0033] Figure 13 For the present invention Figure 7 Enlarged schematic diagram of part B in the middle.

[0034] Figure 14 This is a schematic diagram of the cable tie structure produced by the present invention.

[0035] The attached figures are labeled as follows: 1. Left mold assembly; 101. Left mold base; 102. Support leg; 103. Left mold plate; 104. Mold core; 1041. Water inlet; 1042. Cable tie injection molding cavity; 10421. Cable tie head cavity; 10422. Cable tie tail cavity; 1043. Molding protrusion; 105. First ejector pin; 1051. First limiting part; 1052. Columnar part; 1053. Hook-shaped part; 106. Second ejector pin; 1061. Second limiting part; 1062. Through part; 1063. Lock. 1. Toothed injection molding mating part; 1064. Straight end; 107. First panel; 108. First recess; 109. First base plate; 110. First extrusion plate; 111. Second panel; 112. Second recess; 113. Second base plate; 114. Second extrusion plate; 2. Right module; 201. Right template; 202. Right mold base; 3. Ejector pin pushing mechanism; 31. First pneumatic telescopic rod; 32. Second pneumatic telescopic rod; 4. Air cooling mechanism; 5. Precision positioning assembly; 501. Protrusion; 502. Concave. Detailed Implementation

[0036] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] This invention provides, for example Figures 1 to 13 The diagram illustrates a releasable cable tie production mold, comprising a left mold group 1 and a right mold group 2 arranged sequentially from left to right. The left mold group 1 includes a left mold base 101, with a left template 103 connected to its right side via a support leg 102. The left template 103 has a mold core 104 embedded within it, and the mold core 104 contains a water inlet 1041 and multiple cable tie injection molding cavities 1042 communicating with the water inlet 1041. The support leg 102 is a strip-shaped support column, with two symmetrically arranged vertically. The injection molten metal is diverted through the water inlet 1041 and evenly enters each cable tie injection molding cavity 1042, completing the integral injection molding of the cable tie product and effectively ensuring the stability of the injection molding and the product's formation. Specifically, as shown... Figure 14 The diagram shown is a schematic of the cable tie structure produced by this invention.

[0039] Multiple first ejector pins 105 are disposed on the left side of the sprue cavity 1041 and located between the left mold base 101 and the left mold plate 103. One end of each ejector pin extends into the sprue cavity 1041, enabling it to push the injection-molded sprue. In this invention, the first ejector pins 105 can be made of hard alloy, high-speed steel, or stainless steel, possessing high strength and wear resistance. During demolding, the ejector pin pushing mechanism 3 drives the first ejector pins 105 to move to the right. The end of the first ejector pin 105 extending into the sprue cavity 1041 moves forward, directly contacting and pushing the injection-molded sprue material, separating the sprue material from the inner wall of the mold core 104. This achieves individual ejection and demolding of the sprue material, preventing it from sticking to the mold and ensuring continuous operation of subsequent injection molding processes.

[0040] Multiple second ejector pins 106 are disposed on the left side of the cable tie injection molding cavity 1042, and located between the left mold base 101 and the left mold plate 103. Their left ends are located to the left of the first ejector pin 105, and their right ends extend into the cable tie injection molding cavity 1042. They are used to assist in product demolding and separation of the product from the sprue material. In this invention, the number of second ejector pins 106 corresponds one-to-one with the number of cable tie injection molding cavities 1042. During demolding, the ejector pin pushing mechanism 3 independently drives the second ejector pins 106 to move to the right. The right end of the second ejector pin 106 penetrates to the bottom of the cable tie injection molding cavity 1042. When moving forward, it directly pushes the molded cable tie product, causing the cable tie product to detach from the inner wall of the molding cavity. At the same time, it cooperates with the sprue ejection action of the first ejector pin 105 to achieve separation of the cable tie product from the sprue material, thereby improving demolding efficiency.

[0041] The first panel 107 is slidably sleeved on the left end of the first ejector pin 105. A first recess 108 corresponding to the first ejector pin 105 is opened on its left side, and a first base plate 109 is connected to its left side by fasteners. Specifically, a through hole for the first ejector pin 105 to pass through is opened on the right side of the first recess 108. In this invention, the fasteners can be bolts, screws, or other fastening connectors. The first panel 107 provides sliding guide constraint for the first ejector pin 105. The first ejector pin 105 slides precisely in a straight line along the through hole of the first panel 107 to avoid ejector pin deviation and jamming. The fasteners fasten the first base plate 109 and the first panel 107 into one piece, so that the first base plate 109 can synchronously drive the first panel 107 and the first ejector pin 105 to move as a whole, ensuring the integrity and stability of the pushing operation.

[0042] The first pressing plate 110 is disposed in the first recess 108 between the first ejector pin 105 and the first panel 107. In this invention, the first ejector pin 105 is in close contact with the first pressing plate 110 during the force-driven movement. The first pressing plate 110 fills the gap of the first recess 108, evenly dispersing the pushing pressure of the first ejector pin 105, ensuring uniform pressure transmission, and facilitating the real-time acquisition of pushing pressure data by the first pressure sensor.

[0043] A through hole is provided on the right side of the first settling tank 108 for the first ejector pin 105 to pass through.

[0044] In this embodiment, the first ejector pin 105 passes through the through hole on the right side of the first sink 108 and makes a reciprocating sliding motion. The through hole plays a role in precise guidance and limiting correction of the first ejector pin 105, restricting the radial wobbling of the first ejector pin 105, ensuring the linear motion accuracy of the first ejector pin 105, and avoiding problems such as demolding jamming and uneven ejection of the gate caused by ejector pin deviation.

[0045] The second panel 111 is slidably sleeved on the left end of the second ejector pin 106. A second recess 112 corresponding to the second ejector pin 106 is provided on its left side. A second base plate 113 is connected to its left side by fasteners. Specifically, the right side of the second sinker 112 has a through groove for the second ejector pin 106 to pass through.

[0046] During operation, the second ejector pin 106 slides back and forth along the through groove on the right side of the second sinker 112. The through groove provides a stable sliding trajectory for the second ejector pin 106, constrains the movement direction of the second ejector pin 106, and ensures that multiple sets of second ejector pins 106 complete the ejection action synchronously and smoothly, effectively improving the uniformity and stability of product demolding.

[0047] The second panel 111 of the present invention plays a sliding guide and limiting role for the second ejector pin 106. The second ejector pin 106 slides smoothly along the through groove of the second panel 111 and is locked and fixed by fasteners to the second base plate 113 and the second panel 111, so that the second base plate 113 can synchronously drive the second panel 111 and all the second ejector pins 106 to move together as a whole, ensuring that the product demolding action is synchronous and consistent.

[0048] The second extrusion plate 114 is disposed in the second sinker 112 between the second ejector pin 106 and the second panel 111.

[0049] Furthermore, such as Figure 2 As shown, a plurality of first guide posts are provided between the left mold base 101 and the left template 103, penetrating the first panel 107 and the first base plate 109. An elastic element sleeved on the first guide posts is provided between the first panel 107 and the left template 103.

[0050] Furthermore, such as Figure 2 As shown, a plurality of second guide posts are provided between the left mold base 101 and the left template 103, penetrating the second panel 111 and the second base plate 113. An elastic reset member sleeved on the second guide posts is provided between the second panel 111 and the left template 103.

[0051] The first pressure sensor is located between the first ejector pin 105 and the first extrusion plate 110. In this invention, the first ejector pin 105 generates extrusion force during the process of pushing the sprue material. This force is directly transmitted to the first pressure sensor, which collects the pushing pressure data in real time and can monitor the sprue ejection pressure in real time.

[0052] The second pressure sensor is disposed between the second ejector pin 106 and the second extrusion plate 114. In this invention, when the second ejector pin 106 pushes the cable tie product to perform demolding, the pushing force acts on the surface of the second pressure sensor. The second pressure sensor collects the ejection pressure data of the product demolding in real time and provides real-time feedback on the demolding force status.

[0053] The ejector pin pushing mechanism 3 is located on the right side of the left mold base 101 and can push the first base plate 109 and the second base plate 113 to move independently. In this invention, the ejector pin pushing mechanism 3 can output driving force independently as needed to drive the first base plate 109 and the second base plate 113 to move independently, complete the product ejection action, and realize the separation of sprue material and product.

[0054] The first ejector pin 105 includes a first limiting part 1051, which is disposed within the first sink 108; the first limiting part 1051 of the present invention is a circular limiting platform. The first limiting part 1051 is limited and engaged inside the first sink 108, and forms an axial limiting constraint based on the sink 108's structure, thereby preventing the first ejector pin 105 from slipping out.

[0055] The columnar portion 1052 is disposed on the right side of the first limiting portion 1051 and extends into the water mouth 1041.

[0056] A hook-shaped portion 1053 is disposed on the right side of the columnar portion 1052. By providing the hook-shaped portion 1053, the present invention can hook and pull the sprue material during the separation of sprue material and product after demolding, preventing the sprue material and product from falling off directly without being separated.

[0057] The second ejector pin 106 includes a second limiting part 1061, which is disposed in the second sink 112.

[0058] The through portion 1062 is located on the right side of the second limiting portion 1061 and extends into the cable tie injection molding cavity 1042.

[0059] The locking tooth injection fitting part 1063 is located on the right side of the through part 1062 and cooperates to form the locking tooth at the end of the cable tie during injection molding. During the mold closing and injection molding process of the present invention, the through part 1062 fixes and supports the locking tooth injection fitting part 1063. The locking tooth injection fitting part 1063 cooperates with the cavity wall of the cable tie injection molding cavity 1042 to form the molding space of the locking tooth at the end of the cable tie. After the injection melt fills the cavity, a regular locking tooth structure is formed. During demolding, the locking tooth injection fitting part 1063 withdraws synchronously with the ejector pin without damaging the locking tooth molding structure, thus ensuring the molding accuracy of the cable tie locking tooth.

[0060] The straight end 1064 is located on the right side of the locking tooth injection fitting part 1063. It can pass smoothly through the cable tie locking tooth and does not form a limit with the locking tooth.

[0061] The ejector pin pushing mechanism 3 includes a first pneumatic telescopic rod 31, which is used to push the first base plate 109 to move. It is located on the right side of the left mold base 101, and its telescopic end extends to the first base plate 109. In this invention, the first pneumatic telescopic rod 31 is controlled to extend and retract by the control system. The telescopic end of the first pneumatic telescopic rod 31 performs linear telescopic motion and directly pushes the first base plate 109, driving the first base plate 109, the first panel 107 and the first ejector pin 105 to move as a whole, accurately completing the ejection and demolding action of the sprue material. The pneumatic drive has the advantages of fast response speed, uniform thrust and stable operation.

[0062] The second pneumatic telescopic rod 32, used to push the second base plate 113 to move, is located on the right side of the left mold base 101, with its telescopic end extending to the second base plate 113. This invention can independently control the telescopic movement of the second pneumatic telescopic rod 32. The telescopic movement of the second pneumatic telescopic rod 32 pushes the second base plate 113 to translate, thereby causing the second panel 111 and the second ejector pin 106 to move synchronously, independently completing the ejection and demolding of the cable tie product, and also enabling the separation of the product from the sprue material.

[0063] The cable tie injection molding cavity 1042 includes a cable tie head end cavity 10421 and a cable tie tail end cavity 10422.

[0064] It also includes an air-cooling mechanism 4, which comprises multiple arrayed and interconnected inclined head-end air-cooling channels, which are located within the mold core 104 and connected to an air source. The air-cooling channels are existing technology and will not be described in detail here.

[0065] In this invention, an external air source delivers cold air, which is guided into the inclined head end cooling duct through the air duct. The inclined air duct structure allows the cold air to be blown towards the forming position of the cable tie head, which can quickly dissipate heat and cool down the locking tooth forming part, accelerate the solidification speed of the head melt, and prevent the sprue material from being unable to separate effectively from the product when the sprue material is separated from the product because the plastic part is still hot after demolding.

[0066] Two sets of symmetrically arranged precision positioning components 5, each including a protrusion 501, which is fixed to the side wall of the right module 2.

[0067] The recessed block 502 is fixed to the side wall of the left template 103.

[0068] In this invention, during the mold closing process, the right module 2 drives the protrusion 501 to move towards the left module 1. The protrusion 501 serves as a positioning reference protrusion and is pre-connected with the concave block 502. The protrusion 501 is precisely inserted into the concave block 502. Through the close fit of the convex and concave structures, high-precision mold closing positioning of the left module 1 and the right module 2 is achieved, and the mold closing position of the left and right molds is initially corrected, effectively avoiding mold closing offset and misalignment problems, and ensuring mold closing accuracy.

[0069] The right module 2 includes a right template 201, which is located to the right of the left template 103.

[0070] The right mold base 202 is connected to the right template 201 by fasteners.

[0071] The right mold base 202 of this invention serves as a fixed base, and the right template 201 is firmly locked and fixed by fasteners, so that the position of the right template 201 is stable and does not shift. It will not loosen or deform when subjected to injection pressure, thus ensuring the overall structural strength and mold closing stability of the right module 2, and is suitable for long-term continuous injection molding operations.

[0072] The cable tie injection molding cavity 1042 is provided with a molding protrusion 1043 for cooperating to form the back of the cable tie locking teeth.

[0073] In this invention, during the process of filling the cable tie injection molding cavity 1042 with the injection molten injection, the molding protrusion 1043 and the locking tooth injection mating part 1063 of the second ejector pin 106 cooperate with each other to form a complete molding space for the cable tie locking tooth, so that the front and back sides of the cable tie locking tooth are precisely molded at the same time, ensuring that the locking tooth structure is regular and the biting accuracy is high, meeting the cable tie locking requirements and effectively improving the product molding quality.

[0074] In use, first, control the opening of the left module 1 and the right module 2. Then, control the first pneumatic telescopic rod 31 and the second pneumatic telescopic rod 32 of the ejector pin pushing mechanism 3 to extend to a preset length. The extension of the first pneumatic telescopic rod 31 and the second pneumatic telescopic rod 32 pushes the first base plate 109 and the second base plate 113 respectively. The movement of the first base plate 109 and the second base plate 113 will drive the first ejector pin 105 and the second ejector pin 106 to move respectively. The first ejector pin 105 pushes the sprue material outward, and the second ejector pin 106 pushes and slides outward synchronously with the product, so that the cable tie product separates from the forming protrusion 1043 on the back of the cable tie locking tooth of the mold, realizing the demolding of the product from the mold. Since the extension length is small at this time, the sprue material is not completely demolded from the sprue cavity 1041 of the mold. This invention employs a step-by-step separation and demolding process with the cable tie head end. This allows the molded protrusion 1043 to separate from the product first, providing space for the deformation of the locking teeth when the second ejector pin 106 separates from them. This avoids damage to the teeth caused by simultaneous demolding. During the demolding process of separating the molded protrusion 1043 from the product, if the pressure value detected by the first pressure sensor is greater than the first preset value or the pressure value detected by the second pressure sensor is greater than the second preset value (both the first and second preset values ​​can be set according to the actual situation), it indicates a demolding abnormality. At this time, an alarm is triggered for maintenance to prevent forced demolding from causing some products to break in the mold and resulting in subsequent mold compression.

[0075] Then, the second pneumatic telescopic rod 32 is controlled to retract until the locking tooth injection molding mating part 1063 separates from the last tooth of the injection-molded cable tie. At this time, the straight end 1064 on the right side of the locking tooth injection molding mating part 1063 has not disengaged. The retraction of the second pneumatic telescopic rod 32 causes the second ejector pin 106 to move to the left, thereby separating the second ejector pin 106 from the locking tooth of the product. This invention adopts a step-by-step separation and demolding process from the cable tie head end. Since the locking tooth has deformation clearance space at this time, the separation of the second ejector pin 106 from the locking tooth of the product will not subject the locking tooth to strong pressure. This avoids the situation in the prior art where the cable tie product and the mold form the molding protrusion 1043 on the back of the cable tie locking tooth and the locking tooth injection molding mating part 1063 at the same time, causing hard pressure on the locking tooth and resulting in damage to the locking tooth.

[0076] Next, since the teeth of the locking tooth injection fitting part 1063 and the locking tooth have a reverse structure, the extension of the second pneumatic telescopic rod 32 is controlled at this time. This causes the locking tooth injection fitting part 1063 of the second ejector pin 106 to push the cable tie head end to the right. At the same time, since the sprue material has not completely demolded from the mold's sprue cavity 1041, and the hook-shaped part 1053 of the first ejector pin 105 forms a limit with the sprue material to prevent it from moving to the right, a breaking force is applied to the cable tie head end and the sprue material, thus separating the cable tie head end from the sprue material at the connection point. After the sprue material and the product are separated, if the pressure value detected by the second pressure sensor is greater than zero, it indicates that some sprue material and some product have not been completely separated, and an alarm maintenance is triggered.

[0077] Finally, the first pneumatic telescopic rod 31 is extended until all the sprue material slides out of the sprue cavity 1041. Under the action of gravity, the sprue material automatically separates from the hook-shaped part 1053 of the first ejector pin 105, thereby completing the demolding.

[0078] The present invention also provides a releasable cable tie production apparatus, which uses the releasable cable tie production mold to produce releasable cable ties.

[0079] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A releasable cable tie production mold comprising a left mold block and a right mold block arranged in order from left to right, characterized in that, The left module includes a left mold base, and a left template is connected to its right side by a support leg. The left template has a mold core embedded inside, and the mold core has a water inlet and multiple cable tie injection molding cavities that communicate with the water inlet. Multiple first ejector pins are located on the left side of the sprue and between the left mold base and the left template. One end of each pin extends into the sprue and can push the sprue of the injection molding process. Multiple second ejector pins are disposed on the left side of the cable tie injection molding cavity and located between the left mold base and the left template. Their left ends are located to the left of the first ejector pin, and their right ends extend into the cable tie injection molding cavity. They are used to assist in product demolding and separation of the product from the sprue. A first panel is slidably sleeved on the left end of the first ejector pin. A first groove corresponding to the first ejector pin is opened on its left side, and a first base plate is connected to its left side by fasteners. The first extrusion plate is disposed in the first groove between the first ejector pin and the first panel; The second panel is slidably fitted onto the left end of the second ejector pin. A second recessed groove corresponding to the second ejector pin is opened on its left side, and a second base plate is connected to its left side by fasteners. The second extrusion plate is disposed in the second groove between the second ejector pin and the second panel; A first pressure sensor is disposed between the first ejector pin and the first extrusion plate; The second pressure sensor is disposed between the second ejector pin and the second extrusion plate; The ejector pin pushing mechanism is located on the right side of the left mold base, and it can push the first base plate and the second base plate to move independently; The first ejector pin includes a first limiting part, which is disposed in the first sink groove; A columnar portion is disposed on the right side of the first limiting portion and extends into the water mouth cavity; The hook-shaped part is located on the right side of the columnar part; The second ejector pin includes a second limiting part, which is disposed in the second sinker; The through portion is located on the right side of the second limiting portion and extends into the cable tie injection molding cavity; The locking tooth injection molding mating part is located on the right side of the through part, and during injection molding, it fits to form the locking tooth at the end of the cable tie; The straight end is located on the right side of the locking tooth injection molding mating part and does not form a limiting position with the locking tooth.

2. A releasable tie production mold according to claim 1, wherein The ejector pin pushing mechanism includes a first pneumatic telescopic rod, which is used to push the first base plate to move. It is located on the right side of the left mold base, and its telescopic end extends to the first base plate. The second pneumatic telescopic rod, which is used to push the second base plate to move, is located on the right side of the left mold base, and its telescopic end extends to the second base plate.

3. A releasable tie production mold according to claim 1, wherein The cable tie injection molding cavity includes a cable tie head end cavity and a cable tie tail end cavity.

4. A releasable tie production mold according to claim 3, wherein It also includes an air-cooling mechanism, which comprises multiple arrayed and interconnected inclined head-end air-cooling channels, which are opened inside the mold core and connected to an air source.

5. The loose cable tie production mold according to claim 1, characterized in that, Two sets of symmetrically arranged precision positioning components, each precision positioning component including a protrusion, the protrusion being fixed to the side wall of the right module; The recessed block is fixed to the side wall of the left template.

6. The loose cable tie production mold according to claim 1, characterized in that, The right module includes a right template, which is disposed to the right of the left template; The right mold base is connected to the right template by fasteners.

7. The loose cable tie production mold according to claim 1, characterized in that, The cable tie injection molding cavity is provided with molding protrusions for cooperating in forming the back of the cable tie locking teeth.

8. A loose cable tie production device, characterized in that, Loose cable ties are produced using the loose cable tie production mold as described in any one of claims 1-7.

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