Extrusion forming die for heat shrink tube

Abstract

The utility model discloses a heat shrink tube extrusion molding die, which comprises a bottom plate, a cooling mechanism, an up-down driving mechanism and a detachable plastic tube molding mechanism, the up-down extruding mechanism is arranged on the bottom plate, the cooling mechanism is arranged on the up-down extruding mechanism, and the plastic tube molding mechanism is arranged on the bottom plate. The vertical driving mechanism comprises a driving motor, a mounting base, a reduction gearbox, a lead screw and a threaded block, the cooling mechanism comprises a condenser, a hose, a heat dissipation pipe, a water pump and a reversing fan, and the detachable plastic pipe forming mechanism comprises an upper forming block, a lower forming block, an upper locking plate, a lower locking plate and a detachable plate. The cooling mechanism can effectively control the temperature of the equipment, avoid overheating and ensure the stability of the forming process, the up-down driving mechanism can accurately control the movement of the forming block and ensure the forming precision, and the design of the guide rod and the guide bearing can ensure the stable movement of the lead screw in the forming process.

Description

Technical Field

[0001] The utility model relates to the technical field of processing molds, and more specifically, it relates to a heat shrink tube extrusion molding mold. Background Art

[0002] Heat shrink tubing extrusion molding die is a tool specially used to make heat shrink tubing. Heat shrink tubing is a plastic tube that has the characteristic of shrinking its diameter after heating. It is widely used in insulation protection, identification, connection processing and other aspects of wires and cables.

[0003] Heat shrink tubing extrusion molding die is a tool specially used to make heat shrink tubing. Heat shrink tubing is a plastic tube with the characteristic of shrinking its diameter after heating. It is widely used in insulation protection, identification, connection processing and other aspects of wires and cables. However, the existing heat shrink tubing extrusion molding die still has many shortcomings. First, some devices lack cooling mechanism. A large amount of heat energy is generated during the extrusion molding process. If there is no effective cooling mechanism, the equipment may overheat, affecting the performance of the mold and plastic materials. The lack of cooling mechanism will prolong the cooling and curing time of the product, thereby slowing down the production speed. Secondly, the molding capacity of some devices is limited, which may lead to the inability to accurately control the molding process and reduce the product precision. The operator may need to manually control the position of the molding block, which is both laborious and inefficient. Finally, the maintenance of some devices is more difficult, which may shorten the life of the machine. The detachable design allows the rapid replacement of molding blocks of different specifications. The lack of this function will reduce the adaptability and versatility of the equipment. When producing products of different sizes, the non-detachable design means that each replacement requires more time and labor, which is a significant disadvantage in diversified production. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the problems existing in the prior art, the utility model provides a heat shrink tube extrusion molding die to solve the technical problems of long cooling time and low automation mentioned in the background technology.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heat shrink tube extrusion molding die, comprising a base plate, a cooling and cooling mechanism, an upper and lower extrusion mechanism and a detachable plastic tube molding mechanism, the upper and lower extrusion mechanism are installed on the base plate, the cooling and cooling mechanism is installed on the upper and lower extrusion mechanism, the upper and lower extrusion mechanism comprises a driving motor, a mounting base, a reduction box, a lead screw and a threaded block, the mounting base is installed on the base plate, one end of the lead screw is installed on the mounting base, the other end of the lead screw is connected to the reduction box, the driving motor is installed and connected above the reduction box, the threaded block is installed on the lead screw, the cooling and cooling mechanism comprises a condenser, a hose, a heat pipe, a water pump and a reversing fan, the condenser is installed on the side of the reduction box, the reversing fan is installed above the condenser, the water pump is installed on the side of the condenser, two sets of hoses are installed on the inlet and outlet of the water pump, and the two sets of hoses are cooperatively connected with both ends of the heat pipe.

[0008] The utility model is further configured as follows: the detachable plastic tube forming mechanism comprises an upper forming block, a lower forming block, an upper locking plate, a lower locking plate and a detachable plate; the upper forming block is mounted on the side of the threaded block, and the lower forming block is mounted on the bottom plate; upper locking plates are arranged on both sides of the upper forming block, and lower locking plates are arranged on both sides of the lower forming block, and bolts can pass through the upper locking plates and the lower locking plates to lock the upper forming block and the lower forming block, detachable plates are installed on both sides of the lower forming block, and bolts pass through the detachable plates to mount the lower forming block on the bottom plate. The setting of the detachable plastic tube forming mechanism facilitates the rapid installation and disassembly of the mold, improves work efficiency, and facilitates the maintenance and replacement of the mold through the design of the locking plate and the bolt.

[0009] The utility model is further configured such that a guide rod is provided on the back of the reduction box, guide bearings are symmetrically provided on the back of the threaded block, and the guide rod is installed between two sets of guide bearings. The guide rod and the guide bearings ensure stable movement of the lead screw during the forming process, reduce wear, and increase the service life of the equipment.

[0010] The utility model is further configured such that the upper molding block and the lower molding block are respectively provided with molding grooves, and the two sets of molding grooves can be matched to form a cylindrical groove. The molding grooves on the upper molding block and the lower molding block are designed to cooperate to form a cylindrical heat shrink tube. Such cylindrical grooves ensure the shape and dimensional accuracy of the heat shrink tube.

[0011] The utility model is further configured such that an extruder is provided on one side of the lower molding block, a molding rod is provided on the extruder, and the molding rod extends into the cylindrical groove between the upper molding block and the lower molding block, and a plastic tube molding space is formed between the surface of the molding rod and the inner surface of the cylindrical groove. The extruder and the molding rod can extrude the plastic material evenly, and cooperate with the upper and lower molding blocks to form a plastic tube molding space, thereby ensuring the continuous production of heat shrink tubes and uniform wall thickness.

[0012] The utility model is further configured that a material adding bucket is provided above the extruder, and a material channel in the material adding bucket is connected to the plastic tube forming space, and the material adding bucket can conveniently add raw materials to ensure a continuous supply of materials in the plastic tube forming space and improve production efficiency.

[0013] The utility model is further configured such that a protrusion is provided on the extruder, and a groove is provided on one side surface of the upper molding block and the lower molding block, and the protrusion can extend into the groove for cooperation and limitation, and the protrusion and the groove provide limitation for the extruder, ensuring accurate alignment during the molding process.

[0014] The utility model is further configured that connecting pipes are provided on both sides of the heat dissipation pipe, and the hoses are respectively connected to the connecting pipes, a locking block is provided on the upper surface of the upper molding block, and the locking pipe fixes the heat dissipation pipe on the upper surface of the upper molding block, and the heat dissipation pipe and the connecting pipe are designed to cool the molding mechanism to prevent overheating, thereby ensuring the stability of the equipment during long-term operation.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a heat shrink tube extrusion molding die, which has the following beneficial effects:

[0017] 1. The utility model is provided with a cooling mechanism, which includes a condenser, a hose, a heat dissipation pipe, a water pump and a reversing fan. This system can effectively control the temperature of the equipment, avoid overheating, and ensure the stability of the molding process. Through effective cooling, the size and shape of the heat shrink tube can be better controlled to improve product quality. Appropriate temperature control can reduce the wear of the equipment caused by overheating, thereby extending the service life of the equipment.

[0018] 2. The utility model is provided with an upper and lower extrusion mechanism, which includes a driving motor, a mounting base, a reduction gearbox, a lead screw and a threaded block. This structure can accurately control the movement of the forming block to ensure the forming accuracy. The design of the guide rod and the guide bearing can ensure the stable movement of the lead screw during the forming process, reduce wear and increase the service life of the equipment. The design of the entire driving mechanism makes the operation easier and more efficient, which helps to improve production efficiency.

[0019] 3. The utility model is provided with a detachable plastic tube forming mechanism, which includes an upper forming block, a lower forming block, an upper locking plate, a lower locking plate and a detachable plate. The detachable design facilitates the rapid installation and disassembly of the mold, greatly saving the time for replacing and maintaining the mold. Different molding blocks can be replaced to meet the production needs of heat shrink tubes of different sizes and shapes. The design of the locking plate and the bolt not only ensures the stability of the molding block, but also facilitates maintenance and replacement, thereby reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the device of the present invention when it is not in use;

[0021] Figure 2 It is a structural schematic diagram of the forming rod and the lower forming block at the bottom of the device in the utility model;

[0022] Figure 3 It is a schematic diagram of the upper and lower extrusion mechanism structure on the back of the device in the utility model;

[0023] Figure 4 It is a schematic diagram of the structure of the cooling mechanism installed on the sides of the upper and lower extrusion mechanisms in the utility model;

[0024] Figure 5 It is a schematic diagram of the structure of the extruder and the forming rod in the utility model.

[0025] In the figure: 1, base plate; 2, driving motor; 3, mounting base; 4, reduction box; 5, lead screw; 6, threaded block; 7, condenser; 8, hose; 9, heat pipe; 10, water pump; 11, reversing fan; 12, upper forming block; 13, lower forming block; 14, upper locking plate; 15, lower locking plate; 16, removable plate; 17, guide rod; 18, guide bearing; 19, forming groove; 20, extruder; 21, forming rod; 22, material adding bucket; 23, bump; 24, groove; 25, connecting pipe; 26, locking block. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0028] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0029] See also Figure 1-5A heat shrink tube extrusion molding die comprises a base plate 1, a cooling and cooling mechanism, an upper and lower extrusion mechanism and a detachable plastic tube molding mechanism, the upper and lower extrusion mechanism are mounted on the base plate 1, the cooling and cooling mechanism is mounted on the upper and lower extrusion mechanism, the upper and lower extrusion mechanism comprises a driving motor 2, a mounting base 3, a reduction box 4, a lead screw 5 and a threaded block 6, the mounting base 3 is mounted on the base plate 1, one end of the lead screw 5 is mounted on the mounting base 3, the other end of the lead screw 5 is connected to the reduction box 4, the driving motor 2 is mounted and connected above the reduction box 4, the threaded block 6 is mounted on the lead screw 5, the cooling and cooling mechanism comprises a condenser 7, a hose 8, a heat pipe 9, a water pump 10 and a reversing fan 11, the condenser 7 is mounted on the side of the reduction box 4, the reversing fan 11 is mounted above the condenser 7, the water pump 10 is mounted on the side of the condenser 7, two groups of hoses 8 are mounted on the inlet and outlet of the water pump 10, and the two groups of hoses 8 are matched and connected with both ends of the heat pipe 9.

[0030] In this embodiment, before starting production, the drive motor 2 is started and decelerated by the reduction box 4, thereby driving the lead screw 5 to rotate. The reduction box 4 reduces the rotation speed and increases the torque at the same time to meet the needs of extrusion molding. The rotation of the lead screw 5 drives the threaded block 6 to move up and down along the lead screw 5. During this process, the upper molding block 12 installed on the side of the threaded block 6 will also move up and down. The movement of the upper molding block 12 is used to extrude the plastic material into a heat shrink tube of a desired shape.

[0031] More specifically, the mold will generate a lot of heat during operation, and the temperature needs to be reduced by a cooling mechanism to prevent the mold from overheating and ensure the molding quality. The cooling mechanism consists of a heat pipe 9, a condenser 7, a water pump 10 and a reversing fan 11. The water pump 10 pushes water through the hose 8 to circulate through the heat pipe 9 to take away the heat in the mold. The condenser 7 further enhances the heat exchange efficiency. The reversing fan 11 is used to enhance air flow and help cooling.

[0032] See also Figure 1-4 , as an implementation method for disassembling and inspecting the heat shrink tube forming device: the detachable plastic tube forming mechanism includes an upper forming block 12, a lower forming block 13, an upper locking plate 14, a lower locking plate 15 and a detachable plate 16, the upper forming block 12 is installed on the side of the threaded block 6, and the lower forming block 13 is installed on the bottom plate 1, upper locking plates 14 are arranged on both sides of the upper forming block 12, lower locking plates 15 are arranged on both sides of the lower forming block 13, and bolts can pass through the upper locking plate 14 and the lower locking plate 15 to lock the upper forming block 12 and the lower forming block 13, detachable plates 16 are installed on both sides of the lower forming block 13, and bolts pass through the detachable plate 16 to install the lower forming block 13 on the bottom plate 1.

[0033] Specifically, the detachable plastic tube forming mechanism includes an upper forming block 12 and a lower forming block 13, each of which has a forming groove 19. The two forming grooves 19 are combined to form a cylindrical groove for molding a heat shrink tube. The lower forming block 13 is provided with an extruder 20, wherein a forming rod 21 extends into the cylindrical groove between the upper forming block 12 and the lower forming block 13, and a plastic tube forming space is formed between the surface of the forming rod 21 and the inner surface of the cylindrical groove. The material is added through the material adding bucket 22 and transported to the extrusion molding area through the material channel connected to the plastic tube molding space. When the upper forming block 12 and the lower forming block 13 are closed, the material is extruded and molded in the molding space, and the protrusion 23 of the extruder 20 cooperates with the groove 24 of the upper and lower molding blocks 13 to maintain positioning.

[0034] Please refer to Figure 1-5 As a further implementation of the cooling mechanism, the upper and lower extrusion mechanism and the detachable plastic tube forming mechanism: a guide rod 17 is provided on the back of the reduction box 4, a guide bearing 18 is symmetrically provided on the back of the threaded block 6, and the guide rod 17 is installed between two sets of guide bearings 18, and a forming groove 19 is provided on the upper forming block 12 and the lower forming block 13 respectively, and the two sets of forming grooves 19 can be matched to form a cylindrical groove, and an extruder 20 is provided on one side of the lower forming block 13, and a forming rod 21 is provided on the extruder 20, and the forming rod 21 extends into the cylindrical groove between the upper forming block 12 and the lower forming block 13, and the forming A plastic tube forming space is formed between the surface of the rod 21 and the inner surface of the cylindrical groove. A material adding bucket 22 is provided above the extruder 20, and the material channel in the material adding bucket 22 is connected to the plastic tube forming space. A protrusion 23 is provided on the extruder 20. A groove 24 is provided on one side surface of the upper molding block 12 and the lower molding block 13, and the protrusion 23 can extend into the groove 24 to cooperate with the limit position. Connecting pipes 25 are provided on both sides of the heat dissipation pipe 9, and the hose 8 is respectively connected to the connecting pipes 25. A locking block 26 is provided on the upper surface of the upper molding block 12, and the locking pipe fixes the heat dissipation pipe 9 on the upper surface of the upper molding block 12.

[0035] Specifically, the guide rod 17 and the guide bearing 18 ensure the stable movement of the lead screw 5 during the molding process, reduce wear, and increase the service life of the equipment. The molding groove 19 on the upper molding block 12 and the lower molding block 13 is designed to cooperate to mold a cylindrical heat shrink tube. This cylindrical groove ensures the shape and dimensional accuracy of the heat shrink tube. The extruder 20 and the molding rod 21 can extrude the plastic material evenly, and cooperate with the upper and lower molding blocks 13 to form a plastic tube molding space, ensuring the continuous production and uniform wall thickness of the heat shrink tube. The material adding bucket 22 is convenient for adding raw materials to ensure the continuous supply of materials in the plastic tube molding space and improve production efficiency. The protrusion 23 and the groove 24 provide a limit for the extruder 20 to ensure precise alignment during the molding process. The heat dissipation pipe 9 and the connecting pipe 25 are designed to cool the molding mechanism to prevent overheating and ensure the stability of the equipment during long-term operation.

[0036] To sum up, when the overall equipment is in use (or running): before starting production, the drive motor 2 is started and decelerated by the reduction box 4, thereby driving the screw 5 to rotate. The reduction box 4 reduces the speed and increases the torque at the same time to meet the needs of extrusion molding. The rotation of the screw 5 drives the threaded block 6 to move up and down along the screw 5. During this process, the upper molding block 12 installed on the side of the threaded block 6 will also move up and down. The movement of the upper molding block 12 is used to extrude the plastic material into a heat shrink tube of the desired shape.

[0037] When the cooling mechanism needs to be operated, the mold will generate a lot of heat during operation, and the temperature needs to be reduced by the cooling mechanism to prevent the mold from overheating and ensure the molding quality. The cooling mechanism consists of a heat pipe 9, a condenser 7, a water pump 10 and a reversing fan 11. The water pump 10 pushes water through the hose 8 to circulate through the heat pipe 9 to take away the heat in the mold. The condenser 7 further enhances the heat exchange efficiency. The reversing fan 11 is used to strengthen air flow to help cooling.

[0038] When the operation of the detachable plastic tube forming mechanism is required, the detachable plastic tube forming mechanism includes an upper forming block 12 and a lower forming block 13, each of which has a forming groove 19. The two forming grooves 19 are combined to form a cylindrical groove for molding a heat shrink tube. The lower forming block 13 is provided with an extruder 20, wherein a forming rod 21 extends into the cylindrical groove between the upper forming block 12 and the lower forming block 13, and a plastic tube molding space is formed between the surface of the molding rod 21 and the inner surface of the cylindrical groove. The material is added through the material adding bucket 22 and transported to the extrusion molding area through the material channel connected to the plastic tube molding space. When the upper forming block 12 and the lower forming block 13 are closed, the material is extruded and molded in the molding space, and the protrusion 23 of the extruder 20 cooperates with the groove 24 of the upper and lower molding blocks 13 to maintain positioning.

[0039] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A heat shrink tube extrusion molding die, comprising a base plate (1), a cooling mechanism, an upper and lower extrusion mechanism and a detachable plastic tube molding mechanism, wherein the upper and lower extrusion mechanisms are mounted on the base plate (1), and the cooling mechanism is mounted on the upper and lower extrusion mechanisms, wherein: The upper and lower extrusion mechanism comprises a driving motor (2), a mounting base (3), a reduction box (4), a lead screw (5) and a threaded block (6); the mounting base (3) is mounted on the bottom plate (1); one end of the lead screw (5) is mounted on the mounting base (3); the other end of the lead screw (5) is connected to the reduction box (4); the driving motor (2) is mounted and connected above the reduction box (4); the threaded block (6) is mounted on the lead screw (5); the cooling mechanism comprises a condenser (7), a hose (8), a heat dissipation pipe (9), a water pump (10) and a reversing fan (11); the condenser (7) is mounted on the side of the reduction box (4); the reversing fan (11) is mounted above the condenser (7); the water pump (10) is mounted on the side of the condenser (7); two groups of hoses (8) are mounted on the inlet and outlet of the water pump (10); and the two groups of hoses (8) are matched and connected with both ends of the heat dissipation pipe (9).

2. A heat shrink tube extrusion molding die according to claim 1, characterized in that: The detachable plastic tube forming mechanism comprises an upper forming block (12), a lower forming block (13), an upper locking plate (14), a lower locking plate (15) and a detachable plate (16); the upper forming block (12) is mounted on the side of the threaded block (6); the lower forming block (13) is mounted on the bottom plate (1); upper locking plates (14) are arranged on both sides of the upper forming block (12); lower locking plates (15) are arranged on both sides of the lower forming block (13); bolts can pass through the upper locking plates (14) and the lower locking plates (15) to lock the upper forming block (12) and the lower forming block (13); detachable plates (16) are installed on both sides of the lower forming block (13); bolts pass through the detachable plates (16) to mount the lower forming block (13) on the bottom plate (1).

3. The heat shrink tube extrusion molding die according to claim 1, characterized in that: The back of the reduction box (4) is provided with a guide rod (17), the back of the threaded block (6) is symmetrically provided with guide bearings (18), and the guide rod (17) is installed between two groups of guide bearings (18).

4. The heat shrink tube extrusion molding die according to claim 2, characterized in that: The upper forming block (12) and the lower forming block (13) are respectively provided with forming grooves (19), and the two sets of forming grooves (19) can be matched to form a cylindrical groove.

5. The heat shrink tube extrusion molding die according to claim 2, characterized in that: An extruder (20) is provided on one side of the lower forming block (13), and a forming rod (21) is provided on the extruder (20). The forming rod (21) extends into a cylindrical groove between the upper forming block (12) and the lower forming block (13), and a plastic tube forming space is formed between the surface of the forming rod (21) and the inner surface of the cylindrical groove.

6. The heat shrink tube extrusion molding die according to claim 5, characterized in that: A material adding hopper (22) is provided above the extruder (20), and a material channel in the material adding hopper (22) is connected to the plastic tube forming space.

7. The heat shrink tube extrusion molding die according to claim 5, characterized in that: The extruder (20) is provided with a protrusion (23), and one side surface of the upper molding block (12) and the lower molding block (13) is provided with a groove (24), and the protrusion (23) can extend into the groove (24) for matching and limiting.

8. The heat shrink tube extrusion molding die according to claim 1, characterized in that: Connecting pipes (25) are provided on both sides of the heat dissipation pipe (9), and the hoses (8) are respectively connected to the connecting pipes (25). A locking block (26) is provided on the upper surface of the upper forming block (12), and the locking pipes fix the heat dissipation pipe (9) on the upper surface of the upper forming block (12).

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