Multi-specification PVC sheath material rapid switching forming die

Abstract

The utility model relates to a multi-specification PVC (Polyvinyl Chloride) sheath material quick switching forming die which comprises a seat body and a die interface group connected to the seat body, the center of the seat body is connected with a feeding pipe, the middle part of the seat body is connected with a switching piece, the switching piece comprises a turntable, the outer side of the turntable is rotationally connected with the seat body, and the inner side of the turntable is connected with the feeding pipe; and the switching channel group and the mold interface group are correspondingly arranged. The technical scheme provided by the utility model has the beneficial technical effects that when the turntable rotates, different switching channels can be communicated with different ports of the mold interface group. Therefore, the material can be controlled to flow to which mold interface by rotating the turntable. The problems that in the prior art, a large amount of invalid labor time is increased and efficient production of factories is not facilitated due to the fact that the forming die needs to be replaced after shutdown in the forming die switching process are solved.

Description

Technical Field

[0001] This utility model relates to the field of sheath molds, specifically to a quick-change molding mold for multi-specification PVC sheath materials. Background Technology

[0002] PVC sheaths are protective sleeves made of polyvinyl chloride material. They are widely used on the outside of wires, cables, pipes, or hoses to provide insulation, wear resistance, corrosion resistance, and other protective functions.

[0003] PVC has excellent electrical insulation properties and is often used as the outer sheath of wires and cables. It effectively protects the internal structure from mechanical damage. Some PVC sheaths undergo special treatment to provide UV resistance and aging resistance. Moreover, PVC material has the advantages of low cost, affordability, good processing performance, ease of molding, and good mechanical strength and durability.

[0004] When processing PVC sheaths, specialized PVC molding dies are often required. In a production workshop, a dedicated production line is typically designed for each type of sheath. However, due to current production volumes, it may be necessary to use a single production line to produce sheaths of various specifications.

[0005] The existing technology requires the replacement of the molding mold after a batch of PVC sheaths is produced, which increases a lot of ineffective labor time and is not conducive to the factory's efficient production.

[0006] Therefore, it is very necessary to provide a quick-change molding die for multi-specification PVC sheath materials to solve the above-mentioned technical problems. Utility Model Content

[0007] Based on the above description, this utility model provides a quick-change molding die for multi-specification PVC sheath materials to solve the problem that in the prior art, changing the molding die requires stopping the machine and then replacing the molding die, which increases a lot of ineffective labor time and is not conducive to efficient production in the factory.

[0008] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A multi-specification PVC sheath material quick-change molding mold includes a base and a mold interface group connected to the base. The center of the base is connected to a feed pipe, and the middle part of the base is connected to a switching component. The switching component includes a turntable with its outer side rotatably connected to the base and its inner side connected to the feed pipe. The turntable is provided with a switching channel group, which is correspondingly arranged with the mold interface group. The switching channel group is used to connect the feed pipe to different ports of the mold interface group when rotating.

[0009] Furthermore, the base is polygonal, and the mold interface group includes a first mold channel connected to the first side of the base from the middle of the base, a second mold channel connected to the second side of the base from the middle of the base, and a third mold channel connected to the third side of the base from the middle of the base.

[0010] Furthermore, the switching channel group includes a first switching channel, a second switching channel, and a third switching channel disposed within the turntable. The first switching channel is used to connect one end to the feed pipe and the other end to the first mold channel when switching positions. The second switching channel is used to connect one end to the feed pipe and the other end to the second mold channel when switching positions. The third switching channel is used to connect one end to the feed pipe and the other end to the third mold channel when switching positions.

[0011] Furthermore, it also includes switching channel limiting members connected to the first switching channel, the second switching channel, and the third switching channel respectively. The switching channel limiting member includes a switching support connected to the turntable. A telescopic drive is connected inside the switching support. A locking block is connected to the telescopic drive. The locking block is used to lock into the first switching channel, the second switching channel, and the third switching channel when extended.

[0012] Furthermore, it also includes a positioning component, which includes an annular groove on the turntable and a ball bearing disposed within the annular groove. The annular groove is further provided with a first ball bearing groove, a second ball bearing groove, and a third ball bearing groove. The first ball bearing groove is used to mark the first switching channel as being in a switching position when the ball bearing falls into the first ball bearing groove; the second ball bearing groove is used to mark the second switching channel as being in a switching position when the ball bearing falls into the second ball bearing groove; and the third ball bearing groove is used to mark the third switching channel as being in a switching position when the ball bearing falls into the third ball bearing groove.

[0013] Furthermore, the positioning element includes a mounting plate connected to the feed pipe, the mounting plate having a positioning hole, and the ball bearing connected within the positioning hole.

[0014] According to the claim, a multi-specification PVC sheath material quick-change molding die is characterized in that the bottom of the turntable is provided with concave teeth, the concave teeth are meshed with motor teeth, the motor teeth are connected to a rotating motor, and the rotating motor is connected to the feed pipe.

[0015] Furthermore, the positioning element includes a return spring connected to the ball, the return spring being used to support the ball to lift it up.

[0016] Furthermore, the positioning element includes a pressure sensor connected to the return spring, the pressure sensor being used to detect the position of the ball.

[0017] Furthermore, it also includes a feeding limiter, which includes a feeding limiter motor connected to the bottom of the feeding pipe, a rotating block connected to the feeding limiter motor, and a material passage groove on the rotating block. The material passage groove is used to connect the feeding pipe with the corresponding channel of the switching channel group when the feeding position is reached.

[0018] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0019] The mold interface assembly is connected to the base body. One end of the assembly connects to the forming mold, allowing material to be injected into it through these interfaces. The mold interface assembly may have multiple ports to accommodate different molds or production needs. The feed pipe, located at the center of the base body, is the channel through which material enters the equipment and is responsible for conveying material to the switching element. The switching element controls the flow of material to different mold interfaces within the mold interface assembly. The outer side of the turntable is rotatably connected to the base body, meaning it can rotate relative to the base body. The inner side of the turntable connects to the feed pipe, ensuring material can flow from the feed pipe into the turntable. The switching channel assembly is a set of channels located inside the turntable. These channels correspond to different ports of the mold interface assembly; that is, as the turntable rotates, different switching channels can connect to different ports of the mold interface assembly. Thus, by rotating the turntable, the flow of material to any mold interface can be controlled. This solves the problem of existing technologies requiring mold replacement after machine shutdown, which increases a significant amount of inefficient labor time and hinders efficient factory production. Attached Figure Description

[0020] Figure 1 A schematic diagram of the overall structure of a multi-specification PVC sheath material quick-change molding die provided in this embodiment of the utility model;

[0021] Figure 2 A top view of a multi-specification PVC sheath material quick-change molding die provided in an embodiment of this utility model;

[0022] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0023] Figure 4 for Figure 3 Enlarged structural diagram at point Q;

[0024] Figure 5 This is a partial cross-sectional view of a multi-specification PVC sheath material quick-change molding die provided in an embodiment of the present utility model.

[0025] Figure 6 This is a front view structural diagram of a multi-specification PVC sheath material quick-change molding die provided in an embodiment of the present utility model;

[0026] Figure 7 for Figure 6 Schematic diagram of the cross-sectional structure at point BB;

[0027] Figure 8 for Figure 6 A schematic diagram of the cross-sectional structure at point CC.

[0028] The attached diagram lists the components represented by each number as follows:

[0029] 1. Base body;

[0030] 2. Mold interface group; 21. First mold channel; 22. Second mold channel; 23. Third mold channel;

[0031] 3. Feed pipe;

[0032] 4. Switching component; 41. Turntable; 42. Switching channel group; 421. First switching channel; 422. Second switching channel; 423. Third switching channel;

[0033] 43. Switching channel limit component; 431. Switching support; 432. Telescopic drive; 433. Locking block;

[0034] 44. Concave teeth; 45. Motor teeth; 46. Rotating motor;

[0035] 5. Positioning component; 51. Annular groove; 52. Ball bearing; 53. First ball bearing groove; 54. Second ball bearing groove; 55. Third ball bearing groove; 56. Mounting plate; 57. Positioning hole; 58. Return spring; 59. Pressure sensor;

[0036] 6. Feed limit component; 61. Feed limit motor; 62. Rotating block; 63. Feed groove. Detailed Implementation

[0037] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0039] It is understood that spatial relation terms such as "below," "under," "below," "below," "above," "above," etc., can be used here to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as "below" or "below" of the other element or feature will be oriented "above" the other element or feature. Therefore, the exemplary terms "below" and "below" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.

[0040] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediary element. In the following embodiments, "connection" should be understood as "electrical connection," "communication connection," etc., if the connected circuits, modules, units, etc., have the transmission of electrical signals or data between them.

[0041] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0042] As shown in the figure, a multi-specification PVC sheath material quick-change molding die includes a base 1 and a die interface group 2 connected to the base 1. The center of the base 1 is connected to a feed pipe 3, and the middle of the base 1 is connected to a switching component 4. The switching component 4 includes a turntable 41 whose outer side is rotatably connected to the base 1 and whose inner side is connected to the feed pipe 3. The turntable 41 is provided with a switching channel group 42, which is correspondingly arranged with the die interface group 2. The switching channel group 42 is used to connect the feed pipe 3 to different ports of the die interface group 2 when rotating.

[0043] In this embodiment, the mold interface group 2 is connected to the base 1. One end of the mold interface group 2 is used to connect to the molding mold, allowing material to be injected into the molding mold through these interfaces. The mold interface group 2 may have multiple ports to accommodate different molds or production needs. The feed pipe 3 is the channel for material to enter the equipment. It is connected to the center of the base 1 and is responsible for conveying the material to the switching element 4. The switching element 4 is used to control the flow of material to different mold interfaces of the mold interface group 2. The outer side of the turntable 41 is rotatably connected to the base 1, meaning it can rotate relative to the base 1. The inner side of the turntable 41 is connected to the feed pipe 3, ensuring that material can flow from the feed pipe 3 into the turntable 41. The switching channel group 42 is a set of channels arranged inside the turntable 41. These channels are corresponding to different ports of the mold interface group 2, that is, when the turntable 41 rotates, different switching channels 42 can connect to different ports of the mold interface group 2. In this way, by rotating the turntable 41, the flow of material to which mold interface can be controlled. This solves the problem that existing technologies require mold replacement after machine shutdown, which increases a lot of ineffective labor time and is not conducive to efficient factory production.

[0044] In some embodiments, the base 1 is polygonal, and the mold interface group 2 includes a first mold channel 21 connected to the middle of the base 1 and a first side of the base 1, a second mold channel 22 connected to the middle of the base 1 and a second side of the base 1, and a third mold channel 23 connected to the middle of the base 1 and a third side of the base 1.

[0045] In this embodiment, the first mold channel 21 is a channel connecting the middle of the base 1 to the first side of the base 1. It is a material conduit used to transport materials from inside the base 1 to the mold connected to the first side. In addition, the second mold channel 22 and the third mold channel 23 have similar functions to the first mold channel 21, and will not be described in detail here.

[0046] In some embodiments, the switching channel group 42 includes a first switching channel 421, a second switching channel 422, and a third switching channel 423 disposed within the turntable 41. The first switching channel 421 is configured to connect one end to the feed pipe 3 and the other end to the first mold channel 21 when switching positions are used. The second switching channel 422 is configured to connect one end to the feed pipe 3 and the other end to the second mold channel 22 when switching positions are used. The third switching channel 423 is configured to connect one end to the feed pipe 3 and the other end to the third mold channel 23 when switching positions are used.

[0047] In this embodiment, the first switching channel 421 is one of the channels in the switching channel group 42. When the turntable 41 rotates to the switching position, one end of the first switching channel 421 is connected to the feed pipe 3, and the other end is connected to the first mold channel 21. In this way, the material can enter the first switching channel 421 through the feed pipe 3, and then flow into the mold connected to the first side of the base 1 through the first mold channel 21. The second switching channel 422 is similar to the first switching channel 421. When the turntable 41 rotates to another switching position, one end of the second switching channel 422 is connected to the feed pipe 3, and the other end is connected to the second mold channel 22. In this way, the material can flow into the mold connected to the second side of the base 1. When the turntable 41 rotates to the third switching position, one end of the third switching channel 423 is connected to the feed pipe 3, and the other end is connected to the third mold channel 23. In this way, the material can flow into the mold connected to the third side of the base 1.

[0048] In some embodiments, a switching channel limiting member 43 is further included, which is respectively connected to the first switching channel 421, the second switching channel 422, and the third switching channel 423. The switching channel limiting member 43 includes a switching support 431 connected to the turntable 41. A telescopic drive 432 is connected inside the switching support 431. A locking block 433 is connected to the telescopic drive 432. The locking block 433 is used to lock into the first switching channel 421, the second switching channel 422, and the third switching channel 423 when extended.

[0049] In this embodiment, the switching support 431 is the main body of the switching channel limiting member 43. It is connected to the turntable 41 and is typically located near the switching channel. The switching support 431 provides a stable support point for mounting and fixing the telescopic drive 432. The telescopic drive 432 is a drive device capable of generating linear motion and is connected within the switching support 431. The main function of the telescopic drive 432 is to control the extension and retraction of the locking block 433. When locking the switching channel is required, the telescopic drive 432 drives the locking block 433 to extend; when unlocking is required, the telescopic drive 432 drives the locking block 433 to retract. The telescopic drive 432 employs either a telescopic cylinder or a telescopic hydraulic cylinder. The locking block 433 is a key part of the switching channel limiting member 43 and is connected to the telescopic drive 432. The shape and size of the locking block 433 are designed to match the internal structure of the switching channel to ensure that when the locking block 433 extends, it can be tightly locked within the switching channel, thereby preventing material leakage.

[0050] In some embodiments, a positioning element 5 is further included. The positioning element 5 includes an annular groove 51 disposed on the turntable 41 and a ball 52 disposed in the annular groove 51. The annular groove 51 is further provided with a first ball groove 53, a second ball groove 54 and a third ball groove 55. The first ball groove 53 is used to mark the first switching channel 421 as being in a switching position when the ball 52 falls into the first ball groove 53. The second ball groove 54 is used to mark the second switching channel 422 as being in a switching position when the ball 52 falls into the second ball groove 54. The third ball groove 55 is used to mark the third switching channel 423 as being in a switching position when the ball 52 falls into the third ball groove 55.

[0051] In this embodiment, the annular groove 51 is a recess surrounding the edge of the turntable 41, providing a track for the ball 52 to move within it. The ball 52 is a small sphere placed within the annular groove 51 and able to move freely therein. When the ball 52 falls into this groove, it indicates that the first switching channel 421 is in the switching position, that is, correctly aligned with the feed pipe 3 and the first mold channel 21; when the ball 52 falls into this groove, it indicates that the second switching channel 422 is in the switching position; when the ball 52 falls into this groove, it indicates that the third switching channel 423 is in the switching position.

[0052] In some embodiments, the positioning member 5 includes a mounting plate 56 connected to the feed pipe 3, the mounting plate 56 having a positioning hole 57, and the ball bearing 52 being connected within the positioning hole 57.

[0053] In some embodiments, the positioning member 5 includes a return spring 58 connected to the ball 52, the return spring 58 being used to support the ball 52 to lift the ball 52.

[0054] In this embodiment, the positioning hole 57 is used to limit the movement of the ball 52, so that the ball 52 can only move in the up and down direction. The return spring 58 is used to support the ball 52 and lift it up.

[0055] In some embodiments, the positioning member 5 includes a pressure sensor 59 connected to the return spring 58, the pressure sensor 59 being used to detect the position of the ball 52.

[0056] In this embodiment, when the ball 52 moves downward, the pressure on the pressure sensor 59 increases, and when the ball 52 moves upward, the pressure on the pressure sensor 59 decreases, indicating that it is in a switching position.

[0057] In some embodiments, the bottom of the turntable 41 is provided with concave teeth 44, the concave teeth 44 are meshed with motor teeth 45, the motor teeth 45 are connected to a rotating motor 46, and the rotating motor 46 is connected to the feed pipe 3.

[0058] In this embodiment, the rotating motor 46 is connected to the feed pipe 3. The rotating motor 46 drives the motor teeth 45 to rotate, and the motor teeth 45 drives the concave teeth 44 to rotate, thereby driving the turntable 41 to rotate.

[0059] In some embodiments, the device further includes a feed limiting component 6, which includes a feed limiting motor 61 connected to the bottom of the feed pipe 3. A rotating block 62 is connected to the feed limiting motor 61, and a material passage groove 63 is provided on the rotating block 62. The material passage groove 63 is used to connect the feed pipe 3 with the corresponding channel of the switching channel group 42 when the feeding position is in the feeding position.

[0060] In this embodiment, when it is necessary to close the outlet of the feed pipe 3, the feed limiting motor 61 rotates, driving the rotating block 62 to rotate. The rotating block 62 is provided with a material passage groove 63. When the material passage groove 63 is located at the outlet of the feed pipe 3, the outlet of the feed pipe 3 can release material outward; when the protruding part on the rotating block 62 is located at the outlet of the feed pipe 3, the outlet of the feed pipe 3 is closed.

[0061] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0062] The mold interface assembly is connected to the base body. One end of the assembly connects to the forming mold, allowing material to be injected into it through these interfaces. The mold interface assembly may have multiple ports to accommodate different molds or production needs. The feed pipe, located at the center of the base body, is the channel through which material enters the equipment and is responsible for conveying material to the switching element. The switching element controls the flow of material to different mold interfaces within the mold interface assembly. The outer side of the turntable is rotatably connected to the base body, meaning it can rotate relative to the base body. The inner side of the turntable connects to the feed pipe, ensuring material can flow from the feed pipe into the turntable. The switching channel assembly is a set of channels located inside the turntable. These channels correspond to different ports of the mold interface assembly; that is, as the turntable rotates, different switching channels can connect to different ports of the mold interface assembly. Thus, by rotating the turntable, the flow of material to any mold interface can be controlled. This solves the problem of existing technologies requiring mold replacement after machine shutdown, which increases a significant amount of inefficient labor time and hinders efficient factory production.

[0063] 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, improvements, etc., 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 multi-specification PVC sheath material rapid switching forming die, characterized in that, The device includes a base (1) and a mold interface group (2) connected to the base (1). The base (1) is connected to a feed pipe (3) at its center and a switching component (4) is connected to the middle of the base (1). The switching component (4) includes a turntable (41) with its outer side rotatably connected to the base (1) and its inner side connected to the feed pipe (3). The turntable (41) is provided with a switching channel group (42). The switching channel group (42) is correspondingly arranged with the mold interface group (2). The switching channel group (42) is used to connect the feed pipe (3) and different ports of the mold interface group (2) when rotating.

2. A multi-specification PVC jacketing material quick switching forming mold according to claim 1, characterized in that, The base (1) is polygonal, and the mold interface group (2) includes a first mold channel (21) connected from the middle of the base (1) to the first side of the base (1), a second mold channel (22) connected from the middle of the base (1) to the second side of the base (1), and a third mold channel (23) connected from the middle of the base (1) to the third side of the base (1).

3. A multi-specification PVC jacketing material quick switching forming mold according to claim 2, characterized in that, The switching channel group (42) includes a first switching channel (421), a second switching channel (422) and a third switching channel (423) disposed in the turntable (41). The first switching channel (421) is used to connect one end to the feed pipe (3) and the other end to the first mold channel (21) when switching positions. The second switching channel (422) is used to connect one end to the feed pipe (3) and the other end to the second mold channel (22) when switching positions. The third switching channel (423) is used to connect one end to the feed pipe (3) and the other end to the third mold channel (23) when switching positions.

4. The multi-specification PVC jacketing material quick switching forming mold according to claim 3, characterized in that, It also includes switching channel limiting members (43) connected to the first switching channel (421), the second switching channel (422) and the third switching channel (423) respectively. The switching channel limiting member (43) includes a switching support (431) connected to the turntable (41). A telescopic drive (432) is connected inside the switching support (431). A locking block (433) is connected to the telescopic drive (432). The locking block (433) is used to lock into the first switching channel (421), the second switching channel (422) and the third switching channel (423) when extended.

5. The multi-specification PVC jacketing material quick switching forming mold according to claim 3, characterized in that, It also includes a positioning element (5), which includes an annular groove (51) on the turntable (41) and a ball (52) in the annular groove (51). The annular groove (51) is also provided with a first ball groove (53), a second ball groove (54) and a third ball groove (55). The first ball groove (53) is used to mark the first switching channel (421) as being in the switching position when the ball (52) falls into the first ball groove (53). The second ball groove (54) is used to mark the second switching channel (422) as being in the switching position when the ball (52) falls into the second ball groove (54). The third ball groove (55) is used to mark the third switching channel (423) as being in the switching position when the ball (52) falls into the third ball groove (55).

6. The multi-specification PVC sheath material quick-change molding die according to claim 5, characterized in that, The positioning component (5) includes a mounting plate (56) connected to the feed pipe (3), the mounting plate (56) having a positioning hole (57), and the ball (52) being connected to the positioning hole (57).

7. A multi-specification PVC jacketing material quick switching forming mold according to claim 6, characterized in that, The positioning element (5) includes a return spring (58) connected to the ball (52), the return spring (58) being used to support the ball (52) to lift the ball (52).

8. A multi-specification PVC jacketing material quick switching forming mold according to claim 7, characterized in that, The positioning element (5) includes a pressure sensor (59) connected to the return spring (58), the pressure sensor (59) being used to detect the position of the ball (52).

9. A multi-specification PVC jacketing material quick switching forming mold according to claim 1, characterized in that, The turntable (41) has a concave tooth (44) at the bottom, which is engaged with a motor tooth (45). The motor tooth (45) is connected to a rotating motor (46), which is connected to the feed pipe (3).

10. The multi-specification PVC jacketing material quick switching forming mold according to claim 1, characterized in that, It also includes a feeding limiter (6), which includes a feeding limiter motor (61) connected to the bottom of the feeding pipe (3). A rotating block (62) is connected to the feeding limiter motor (61), and a material passage groove (63) is provided on the rotating block (62). The material passage groove (63) is used to connect the feeding pipe (3) with the corresponding channel of the switching channel group (42) when the feeding position is in the feeding position.

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