Multi-layer co-extrusion plastic extruding machine mold

Abstract

The utility model discloses a multi-layer co-extrusion plastic extruding machine mold, and particularly relates to the technical field of plastic extruding machine molds, the multi-layer co-extrusion plastic extruding machine mold comprises a mold main body, clamping plates are arranged on two sides of the mold main body, limiting grooves are formed in the surfaces of the sides, close to the mold main body, of the two clamping plates, and the outer walls of the two sides of the mold main body are arranged in the two limiting grooves respectively; baffles are fixedly arranged at the front ends of the two clamping plates, the rear ends of the baffles make contact with the front end of the mold body, driving assemblies are arranged at the bottoms of the two clamping plates and comprise bottom plates, grooves are formed in the tops of the bottom plates, and bidirectional lead screws are rotationally arranged in the grooves. The motor drives the two nut blocks on the two-way lead screw to move simultaneously, the two nut blocks drive the two clamping plates to fix the die body to be used in cooperation with the multi-layer co-extrusion plastic extruding machine, when the die body needs to be replaced, the motor only needs to drive the two-way lead screw to rotate reversely, the two clamping plates can be separated, and replacement is convenient. Therefore, workers can conveniently disassemble and replace the mold body, and the mold is more convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of extruder moulds, in particular to a multi-layer co-extrusion extruder mould. Background Art

[0002] At present, the use of plastic products is increasing. Extruder is an important plastic machine. The production and manufacturing of most plastic products can be achieved by extrusion molding. Multi-layer co-extrusion extruder is a device that can make two or more materials flow along their own independent flow channels, merge near the die outlet, and extrude the die together. The multi-layer co-extrusion extruder mold usually consists of an extrusion part, a casting part, a corona part, a winding part, and an electronic control part.

[0003] For example, the prior art publication number CN218615339U is an extruder mold that can be flexibly spliced. The utility model plugs different numbers of mounting plates together along the length direction according to the different lengths of the required plates, thereby improving the cumbersome process of replacing the mold, reducing the cost of producing the mold, and being able to produce plates of different sizes more economically and conveniently.

[0004] However, the above-mentioned prior art still has the following problems when used: different molds are used for different plastic products due to their different shapes, and the existing molds are usually installed on the extruder using multiple bolts. When replacing the mold, it takes a lot of time to disassemble it, which increases the workload of the staff. Based on this, the utility model provides a multi-layer co-extrusion extruder mold that is easy to disassemble and replace. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a multi-layer co-extrusion extruder mold, which drives two nut blocks on a bidirectional screw rod to move simultaneously through a motor, and the two nut blocks drive two clamping plates to fix the mold body for use in conjunction with the multi-layer co-extrusion extruder. When the mold body needs to be replaced, it is only necessary to use a motor to drive the bidirectional screw rod to reverse to separate the two clamping plates, thereby making it easier for the staff to disassemble and replace the mold body, which is more convenient to use, thereby solving the problems arising from the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-layer co-extrusion extruder mold, including a mold body, both sides of the mold body are provided with clamps, and the two clamps are provided with limit grooves on the surface of one side close to the mold body, and the outer walls on both sides of the mold body are respectively arranged in the two limit grooves, and the front ends of the two clamps are fixed with baffles, and the rear ends of the baffles are in contact with the front end of the mold body. A driving component is provided at the bottom of the two clamps, and the driving component includes a bottom plate, and the top of the bottom plate is provided with a groove, and a bidirectional screw rod is rotatably provided in the groove, and nut blocks are threadedly connected on both sides of the outer wall of the bidirectional screw rod, and the two nut blocks are respectively connected to the two clamps through a clamping component, and a motor is fixedly embedded on one side of the bottom plate, and one end of the motor output shaft passes through the bottom plate and is fixed to one end of the bidirectional screw rod.

[0007] In a preferred embodiment, the snap-on assembly includes an insert block, two insert blocks are respectively fixed on the top of two nut blocks, and the bottom of the two clamps are provided with slots adapted to the insert blocks. The insert blocks are arranged in the slots to facilitate auxiliary staff to splice the clamps and the nut blocks together.

[0008] In a preferred embodiment, a circular groove is provided on the inner wall of the two slots on the side close to each other, and an insertion rod is provided in the circular groove. A card slot adapted to the insertion rod is provided on the outer wall of the two plug blocks on the side away from each other, and the insertion rod is plugged into the card slot to facilitate the connection and fixation between the splint and the plug block.

[0009] In a preferred embodiment, a pull rod is fixedly provided at one end of the two insertion rods away from each other, and the pull rod passes through the outer wall of the splint away from the end of the insertion rod. The outer walls of the two pull rods are sleeved with return springs, one end of the return spring is fixed to the insertion rod, and the other end of the return spring is fixed to the inner wall of the circular groove. The elastic force of the return spring is used to push the insertion rod into contact with the slot, thereby improving the stability of the insertion rod.

[0010] In a preferred embodiment, two pull rods are movably provided with pull rings at the ends away from each other, so that the staff can pull the pull rods easily.

[0011] In a preferred embodiment, a mounting plate is provided at the bottom of the base plate, and two symmetrically distributed mounting holes are opened at the rear end of the mounting plate. Bolts are passed through the mounting holes to firmly fix the mounting plate and the multi-layer co-extrusion extruder together.

[0012] In a preferred embodiment, a slide groove is provided at the bottom of the base plate, an electric slide is fixed in the slide groove, and the bottom of the electric slide is fixed to the top of the mounting plate to facilitate adjustment of the position of the mounting plate.

[0013] Technical effects and advantages of the utility model:

[0014] 1. The utility model drives two nut blocks on the bidirectional screw rod to move simultaneously through a motor, and the two nut blocks drive two clamping plates to fix the mold body and cooperate with the multi-layer co-extrusion extruder. When the mold body needs to be replaced, it is only necessary to use the motor to drive the bidirectional screw rod to reverse, so that the two clamping plates can be separated, so that it is convenient for the staff to disassemble and replace the mold body, which is more convenient to use.

[0015] 2. Use the pull rod to move the plug rod out of the slot, so that the staff can remove the splint from the nut block. Then, according to the different shapes of the mold body, replace the splint with a limit groove that matches the shape of the mold body. At the same time, use the electric slide to adjust the position of the mounting plate, so that the rear end of the mold body fits tightly with the front end of the multi-layer co-extrusion extruder. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the connection between the multi-layer co-extrusion extruder and the mold body;

[0017] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 3 It is a bottom view of the overall structure of the utility model;

[0019] Figure 4 It is a partial cross-sectional view of the splint of the utility model;

[0020] Figure 5 For this utility model Figure 4 Enlarged view of part A in the middle.

[0021] The reference numerals are: 1, mold body; 2, clamping plate; 3, limiting groove; 4, baffle; 5, driving assembly; 6, clamping assembly; 7, pull ring; 8, mounting plate; 9, mounting hole; 10, slide groove; 11, electric slide;

[0022] 501, bottom plate; 502, groove; 503, bidirectional screw rod; 504, nut block; 505, motor;

[0023] 601, plug block; 602, slot; 603, circular slot; 604, plug rod; 605, slot; 606, pull rod; 607, return spring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Refer to the instruction manual Figure 1-5 The utility model provides a multi-layer co-extrusion extruder mold, including a mold body 1, two clamping plates 2 are arranged on both sides of the mold body 1, and the two clamping plates 2 are provided with limiting grooves 3 on the surface of one side close to the mold body 1. The outer walls on both sides of the mold body 1 are respectively arranged in the two limiting grooves 3, and the front ends of the two clamping plates 2 are fixed with baffles 4, and the rear end of the baffles 4 is in contact with the front end of the mold body 1;

[0026] A driving assembly 5 is provided at the bottom of the two clamping plates 2, and the driving assembly 5 includes a bottom plate 501, a groove 502 is provided at the top of the bottom plate 501, a bidirectional screw rod 503 is rotatably provided in the groove 502, nut blocks 504 are threadedly connected to the outer walls of the bidirectional screw rod 503 on both sides, and the two nut blocks 504 are respectively connected to the two clamping plates 2 through the clamping assembly 6, and a motor 505 is fixedly embedded on one side of the bottom plate 501, and one end of the output shaft of the motor 505 passes through the bottom plate 501 and is fixed to one end of the bidirectional screw rod 503;

[0027] In addition, a mounting plate 8 is provided at the bottom of the base plate 501, and two symmetrically distributed mounting holes 9 are provided at the rear end of the mounting plate 8. Bolts are passed through the mounting holes 9 to firmly fix the mounting plate 8 and the multi-layer co-extrusion extruder together.

[0028] When in use, the staff first fixes the mounting plate 8 to the front end of the multi-layer co-extrusion extruder, then aligns the mold body 1 with the discharge port at the front end of the multi-layer co-extrusion extruder, and then uses the motor 505 to drive the two nut blocks 504 on the bidirectional screw rod 503 to move simultaneously. The two nut blocks 504 drive the two clamping plates 2 to move closer, firmly clamp the mold body 1, and the front end of the mold body 1 contacts the two baffles 4. The baffles 4 can be used when the mold body 1 is firmly against the front end of the multi-layer co-extrusion extruder. When the mold body 1 needs to be replaced, it is only necessary to use the motor 505 to drive the bidirectional screw rod 503 to reverse, so that the two clamping plates 2 can be separated, thereby facilitating the staff to disassemble and replace the mold body 1.

[0029] Refer to the instruction manual Figure 1-5 The clamping assembly 6 includes an insert block 601, and the two insert blocks 601 are respectively fixed on the top of the two nut blocks 504. The bottom of the two clamps 2 is provided with a slot 602 adapted to the insert block 601. The insert block 601 is arranged in the slot 602, which is convenient for the auxiliary staff to splice the clamp 2 and the nut block 504 together. The inner wall of the two slots 602 close to each other is provided with a circular groove 603, and the circular groove 603 is provided with an insert rod 604. The outer wall of the two insert blocks 601 away from each other is provided with a slot 605 adapted to the insert rod 604. The insert rod 604 is plugged into the slot 605, which is convenient for completing the connection and fixation of the clamp 2 and the insert block 601;

[0030] In addition, a pull rod 606 is fixedly provided at one end of the two plug rods 604 that is away from the plug rod 604. The end of the pull rod 606 that is away from the plug rod 604 penetrates the outer wall of the clamping plate 2. The outer walls of the two pull rods 606 are sleeved with a return spring 607. One end of the return spring 607 is fixed to the plug rod 604, and the other end of the return spring 607 is fixed to the inner wall of the circular groove 603. The elastic force of the return spring 607 is used to push the plug rod 604 to contact the card slot 605, so as to improve the stability of the plug rod 604.

[0031] Moreover, a pull ring 7 is movably provided at one end of the two pull rods 606 that is away from each other, so that the staff can pull the pull rod 606. A slide groove 10 is opened at the bottom of the base plate 501, and an electric slide 11 is fixed in the slide groove 10. The bottom of the electric slide 11 is fixed to the top of the mounting plate 8, so as to facilitate the adjustment of the position of the mounting plate 8.

[0032] After grabbing the pull ring 7 and pulling the pull rod 606 to drive the insertion rod 604 to move out of the slot 605, the staff can remove the splint 2 from the nut block 504, and replace the splint 2 with the limiting groove 3 that matches the shape of the mold main body 1 according to the different shapes of the mold main body 1. When reinstalling, just align the slot 602 at the bottom of the splint 2 with the insertion block 601 and insert it, and then release the pull ring 7. The insertion rod 604 is automatically inserted into the slot 605 under the elastic force of the reset spring 607, thereby completing the connection between the splint 2 and the nut block 504. At the same time, according to the position of the rear end of the mold main body 1, use the electric slide 11 to adjust the position of the mounting plate 8, and then fix the mounting plate 8 to the front end of the multi-layer co-extrusion extruder to ensure that the rear end of the mold main body 1 is tightly fitted with the front end of the multi-layer co-extrusion extruder.

[0033] Finally: 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 in the protection scope of the present utility model.

Claims

1. A multi-layer co-extrusion extruder die, comprising a die body (1), characterized in that: Clamps (2) are provided on both sides of the mold body (1), and limiting grooves (3) are provided on the surfaces of the two clamps (2) close to the mold body (1). The outer walls on both sides of the mold body (1) are respectively arranged in the two limiting grooves (3), and baffles (4) are fixedly provided at the front ends of the two clamps (2), and the rear ends of the baffles (4) are in contact with the front end of the mold body (1); A driving assembly (5) is provided at the bottom of the two clamping plates (2), and the driving assembly (5) comprises a bottom plate (501), a groove (502) is provided at the top of the bottom plate (501), a bidirectional screw rod (503) is rotatably provided in the groove (502), nut blocks (504) are threadedly connected to the outer walls of the bidirectional screw rod (503) on both sides, and the two nut blocks (504) are respectively connected to the two clamping plates (2) through a clamping assembly (6), a motor (505) is fixedly embedded on one side of the bottom plate (501), and one end of the output shaft of the motor (505) passes through the bottom plate (501) and is fixed to one end of the bidirectional screw rod (503).

2. The multi-layer co-extrusion extruder die according to claim 1, characterized in that: The clamping assembly (6) comprises an insert block (601), wherein two insert blocks (601) are respectively fixed on the top ends of two nut blocks (504), and the bottom ends of the two clamping plates (2) are each provided with a slot (602) adapted to the insert block (601), and the insert block (601) is arranged in the slot (602).

3. The multi-layer co-extrusion extruder die according to claim 2, characterized in that: A circular groove (603) is provided on the inner wall of the two slots (602) on the side close to each other, and an insertion rod (604) is provided in the circular groove (603). A clamping groove (605) adapted to the insertion rod (604) is provided on the outer wall of the two insertion blocks (601) on the side away from each other, and the insertion rod (604) is plugged into the clamping groove (605).

4. The multi-layer co-extrusion extruder die according to claim 3, characterized in that: A pull rod (606) is fixedly provided at one end of the two insertion rods (604) away from each other. The end of the pull rod (606) away from the insertion rod (604) passes through the outer wall of the splint (2). The outer walls of the two pull rods (606) are sleeved with a return spring (607). One end of the return spring (607) is fixed to the insertion rod (604), and the other end of the return spring (607) is fixed to the inner wall of the circular groove (603).

5. The multi-layer co-extrusion extruder die according to claim 4, characterized in that: A pull ring (7) is movably provided at one end of the two pull rods (606) that is away from each other, so as to facilitate pulling the pull rods (606).

6. The multi-layer co-extrusion extruder die according to claim 1, characterized in that: A mounting plate (8) is provided at the bottom of the base plate (501), and two symmetrically distributed mounting holes (9) are provided at the rear end of the mounting plate (8).

7. The multi-layer co-extrusion extruder die according to claim 6, characterized in that: A slide groove (10) is provided at the bottom of the base plate (501), and an electric slide (11) is fixedly provided in the slide groove (10). The bottom of the electric slide (11) is fixed to the top of the mounting plate (8) to facilitate adjustment of the position of the mounting plate (8).

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