Die changing auxiliary device of plastic extruding machine

Abstract

The utility model discloses a plastic extruding machine mould changing auxiliary device which comprises a rack, a movable support and a mould core seat, the movable support is located at the top end of the rack, the mould core seat is located at the front end of the rack, a motor is installed on the outer surface of one end of the movable support, and the output end of the motor is connected with a two-way lead screw. The outer surface of the bidirectional screw rod is in threaded connection with a first clamping seat and a second clamping seat, the first clamping seat and the second clamping seat are symmetrically distributed about the central point of the bidirectional screw rod, die heads are movably mounted in the first clamping seat and the second clamping seat, and the die heads and the die core seat are movably mounted. According to the auxiliary device for replacing the mold of the plastic extruding machine, the mold can be rapidly and accurately replaced, the time required for replacing the mold is greatly shortened, the production efficiency is improved, the production cost is reduced, an operator does not need to directly replace the mold in a high-temperature environment, the labor intensity is reduced, and the working safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of extruder technology, specifically to an extruder mold changing auxiliary device. Background Art

[0002] In existing technologies, the extrusion mold of a cable extruder usually consists of two parts: a mold sleeve and a mold core. When it is necessary to change the mold to adapt to the production of cables of different specifications, the operator must disassemble the mold sleeve for replacement and adjustment. This process is not only cumbersome but also time-consuming.

[0003] When the extruder is in operation, the die head is in a high-temperature environment. This is because the high-temperature plastic melt in the extrusion process heats the die head. Therefore, when changing the die head, the operator must wait for the die head to cool down to a certain degree before it can be safely disassembled and installed. This waiting process usually takes a long time, which not only prolongs the overall die change time but also reduces the efficiency of die head change. Because the die head takes a long time to cool down, the operator cannot perform other effective work during this period, resulting in increased downtime of the production line. Utility Model Content

[0004] The purpose of this invention is to provide an extruder die-changing auxiliary device to solve the problem mentioned in the background art of the difficulty in manually changing the die head when the temperature is too high.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an extruder die-changing auxiliary device, comprising a frame, a movable support, and a die core seat. The movable support is located at the top of the frame, and the die core seat is located at the front end of the frame. A motor is mounted on the outer surface of one end of the movable support, and a bidirectional lead screw is connected to the output end of the motor. A first clamping seat and a second clamping seat are threadedly connected to the outer surface of the bidirectional lead screw. The first clamping seat and the second clamping seat are symmetrically distributed about the center point of the bidirectional lead screw. A die head is movably mounted inside the first clamping seat and the second clamping seat, and the die head and the die core seat are movably mounted.

[0006] As a preferred technical solution of this utility model, the first clamping seat and the second clamping seat have the same structure, and positioning ear seats are symmetrically arranged on the inner surfaces of the first clamping seat and the second clamping seat.

[0007] As a preferred technical solution of this utility model, a positioning cylinder is provided on the outer surface of the mold head, and the positioning cylinder and the positioning ear are movably connected.

[0008] As a preferred technical solution of this utility model, the first clamping seat and the second clamping seat are provided with guide grooves inside.

[0009] As a preferred technical solution of this utility model, a slide groove is provided at the bottom of the frame, a screw is movably connected inside the slide groove, and guide rails are provided at both ends of the slide groove. One end of the screw passes through the inside of the frame, and a handle is provided on the outer surface of the other end of the screw.

[0010] As a preferred technical solution of this utility model, the screw and the movable bracket are threadedly connected, and the movable bracket and the guide rail are slidably connected.

[0011] Compared with the prior art, the beneficial effects of this utility model extruder die-changing auxiliary device are:

[0012] It enables fast and accurate mold replacement, significantly reducing the time required for mold replacement, improving production efficiency, and reducing production costs. Operators no longer need to perform mold replacement directly in high-temperature environments, reducing labor intensity and improving work safety. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall front view of the present invention;

[0014] Figure 2 This is a front view of the internal structure of the connection end between the frame and the movable support of this utility model;

[0015] Figure 3 This is a top view schematic diagram of the first clamping seat and the internal structure of the first clamping seat of this utility model;

[0016] Figure 4 This is a side view of the guide groove structure of this utility model.

[0017] In the diagram: 1. Frame; 2. Movable support; 3. Mold core seat; 4. Motor; 5. Two-way lead screw; 6. First clamping seat; 7. Second clamping seat; 8. Positioning ear seat; 9. Screw; 10. Handle; 11. Guide rail; 12. Guide groove; 13. Slide groove; 14. Mold head; 15. Positioning cylinder. DETAILED DESCRIPTION

[0018] Please see Figure 1-4 This utility model provides a technical solution: an extruder die-changing auxiliary device, including a frame 1, a movable support 2 and a die core seat 3. The movable support 2 is located at the top of the frame 1, and the die core seat 3 is located at the front end of the frame 1. A motor 4 is installed on the outer surface of one end of the movable support 2. A bidirectional lead screw 5 is connected to the output end of the motor 4. A first clamping seat 6 and a second clamping seat 7 are threadedly connected to the outer surface of the bidirectional lead screw 5. The first clamping seat 6 and the second clamping seat 7 are symmetrically distributed about the center point of the bidirectional lead screw 5. A die head 14 is movably installed inside the first clamping seat 6 and the second clamping seat 7. The die head 14 and the die core seat 3 are movably installed.

[0019] The first clamping seat 6 and the second clamping seat 7 have the same structure. The inner surfaces of the first clamping seat 6 and the second clamping seat 7 are symmetrically provided with positioning ear seats 8. When the first clamping seat 6 and the second clamping seat 7 are in contact, the position distribution of the ear seats 8 corresponds to the position of the positioning cylinder 15 of the mold head 14. When the mold head 14 and the mold core seat 3 are installed, they can play a positioning and installation role.

[0020] The outer surface of the mold head 14 is provided with a positioning cylinder 15. The positioning cylinder 15 is movably connected to the positioning ear seat 8. The positioning cylinder 15 at the front end of the mold head 14 is supported by the positioning ear seat 8. After the limiting screw is installed in the limiting hole on the side of the mold head 14, the support point is switched to the limiting bolt, and the positioning cylinder 15 can slide out from the inside of the positioning ear seat 8.

[0021] The first clamping seat 6 and the second clamping seat 7 have guide grooves 12 inside. One end of the guide groove 12 is notched, and the inside of the guide groove 12 is a groove and hollow. The guide groove 12 can pass through the threaded part of the limit bolt. After the fixing is completed, the nut can slide out from the notch at one end of the guide groove 12, which facilitates subsequent installation work.

[0022] The bottom of the frame 1 is provided with a slide groove 13, and a screw 9 is movably connected inside the slide groove 13. Guide rails 11 are provided at both ends of the slide groove 13. One end of the screw 9 passes through the inside of the frame 1, and a handle 10 is provided on the outer surface of one end of the screw 9. A groove is provided inside the slide groove 13 to connect with the bottom of the movable support 2, which can reduce the volume occupied by the movable support 2. The screw 9 is used for threaded transmission, so that the movable support 2 can move parallel along the guide rails 11, which facilitates the horizontal corresponding connection between the mold core seat 3 and the mold head 14.

[0023] The screw 9 is threadedly connected to the movable bracket 2, and the movable bracket 2 is slidably connected to the guide rail 11. The horizontal movement of the first clamping seat 6 and the second clamping seat 7 can be manually adjusted by the control handle 10. The first clamping seat 6 and the second clamping seat 7 are driven by the double-acting screw 5, so that the first clamping seat 6 and the second clamping seat 7 move at a relatively equal distance and remain in contact with the outer wall of the mold head 14, thereby increasing the installation accuracy.

[0024] Working principle: The die head 14 is placed between the first clamping seat 6 and the second clamping seat 7. The motor 4 controls the bidirectional lead screw 5 to drive the first clamping seat 6 and the second clamping seat 7 threadedly. The first clamping seat 6 and the second clamping seat 7 move at a relatively equal distance and remain in contact with the outer wall of the die head 14. Then, the handle 10 is controlled to rotate the screw 9. The screw 9 drives the movable bracket 2 threadedly. The movable bracket 2 slides horizontally along the guide rail 11, so that the die head 14 and the die core seat 3 are in contact with each other, and the positioning cylinder 15 of the die head 14 is inserted. If the positioning cylinder 15 and the positioning ear 8 are misaligned, causing the mold core seat 3 and the mold head 14 to not fit together, then repositioning and installation are required to avoid misalignment of the limiting holes between the mold head 14 and the mold core seat 3. Then, the limiting bolt is passed through the guide groove 12 and connected to the limiting hole. After the connection is completed, the control handle 10 is used to control the movable bracket 2 to move in parallel, so that the two clamping seats at the top are separated from the mold head 14. The entire process of support or fixation does not require manual control, effectively solving the installation risks of high temperature mold changing.

Claims

1. An extruder die-changing auxiliary device, characterized in that, The device includes a frame (1), a movable support (2), and a mold core seat (3). The movable support (2) is located at the top of the frame (1), and the mold core seat (3) is located at the front end of the frame (1). A motor (4) is installed on the outer surface of one end of the movable support (2). A bidirectional lead screw (5) is connected to the output end of the motor (4). A first clamping seat (6) and a second clamping seat (7) are threaded on the outer surface of the bidirectional lead screw (5). The first clamping seat (6) and the second clamping seat (7) are symmetrically distributed about the center point of the bidirectional lead screw (5). A mold head (14) is movably installed inside the first clamping seat (6) and the second clamping seat (7). The mold head (14) and the mold core seat (3) are movably installed.

2. The extruder die-changing auxiliary device according to claim 1, characterized in that: The first clamping seat (6) and the second clamping seat (7) have the same structure, and the inner surfaces of the first clamping seat (6) and the second clamping seat (7) are respectively symmetrically provided with positioning ear seats (8).

3. The extruder die-changing auxiliary device according to claim 1, characterized in that: The outer surface of the mold head (14) is provided with a positioning cylinder (15), and the positioning cylinder (15) is movably connected to the positioning ear seat (8).

4. The extruder die-changing auxiliary device according to claim 1, characterized in that: The first clamping seat (6) and the second clamping seat (7) have guide grooves (12) inside.

5. The extruder die-changing auxiliary device according to claim 1, characterized in that: The bottom end of the frame (1) is provided with a slide groove (13), and a screw (9) is movably connected inside the slide groove (13). Guide rails (11) are provided at both ends of the slide groove (13). One end of the screw (9) passes through the inside of the frame (1), and a handle (10) is provided on the outer surface of one end of the screw (9).

6. The extruder die-changing auxiliary device according to claim 5, characterized in that: The screw (9) is threaded to the movable bracket (2), and the movable bracket (2) is slidably connected to the guide rail (11).

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