Adjusting plate of extrusion die head

Abstract

The utility model discloses an adjusting plate of an extrusion die head, which comprises a plate body, a guide groove is arranged on the plate body, and a sliding block is matched in the guide groove in a sliding mode. A first modeling surface is arranged at one end of the guide groove; a second modeling surface is arranged at one end of the slider; the plate body is further connected with an adjusting structure used for adjusting the distance between the first modeling face and the second modeling face. And a space between the first molding surface and the second molding surface forms an extrusion molding opening. According to the adjusting plate of the extrusion die head, the material extrusion speed can be adjusted on line without shutdown, the operation is convenient, and the production schedule is basically not influenced.

Description

Technical Field

[0001] The utility model relates to the field of extrusion molding, in particular to an adjustment plate of an extrusion die head. Background Art

[0002] The molding of strip plastic products mainly adopts the extrusion molding method, that is, the melted material is introduced into the mold, and the material is pressurized to move toward a channel with a defined cross-section shape. The material is restricted by the cross-sectional shape of the channel, and after cooling, it is shaped and extruded from the end of the channel. However, the cross-sectional size of the channel is currently fixed, and it is impossible to adjust the cross-sectional size to achieve speed regulation of extrusion. When there are more than two extrusion channels on the mold, once resistance is formed in some channels due to dimensional errors, the extrusion speed of materials in different channels will be different, which may easily lead to different weights of the final products of materials extruded from different channels, and the consistency of product quality cannot be ensured. At this time, the traditional method is to disassemble the mold and trim the size and shape of the channel, and then reinstall it. Not only is the adjustment difficult, but it also requires downtime, which seriously affects the production progress. Utility Model Content

[0003] The utility model aims to provide an adjustment plate of an extrusion die head, which can adjust the material extrusion speed online without stopping the machine, is easy to operate, and basically does not affect the production progress.

[0004] To achieve the above-mentioned purpose, the utility model provides an adjustment plate of an extrusion die head, including a plate body, a guide groove is provided on the plate body, and a slider is slidably fitted in the guide groove; a first molding surface is provided at one end of the guide groove, and a second molding surface is provided at one end of the slider; an adjustment structure for adjusting the distance between the first molding surface and the second molding surface is also connected to the plate body; the space between the first molding surface and the second molding surface constitutes an extrusion molding port.

[0005] As a further improvement of the present invention, the direction in which the sliding block and the guide groove slide together is perpendicular to the extrusion direction.

[0006] As a further improvement of the present invention, the slider includes a front end face and a rear end face, the front edge of the second modeling surface is arranged adjacent to the front end face, and the rear edge of the second modeling surface is arranged adjacent to the rear end face; a chamfer is provided at the connection between the rear edge of the second modeling surface and the rear end face.

[0007] As a further improvement of the present invention, at least one side of the guide groove is provided with a first limiting structure, at least one side of the slider is provided with a second limiting structure, and the first limiting structure cooperates with the second limiting structure.

[0008] As a further improvement of the present invention, both the first limiting structure and the second limiting structure are stepped limiting structures.

[0009] As a further improvement of the utility model, the adjustment structure includes a bolt, which is threadedly connected to the plate body, and a clamping block is provided at one end of the bolt; a clamping groove is provided on the slider, and the clamping block cooperates with the clamping groove.

[0010] As a further improvement of the present invention, the guide grooves and sliding blocks are at least two groups and are arranged on the plate body.

[0011] Beneficial Effects

[0012] Compared with the prior art, the advantages of the adjustment plate of the extrusion die head of the utility model are:

[0013] 1. When the extrusion speed of the material in the mold channel needs to be adjusted, the slider can be operated to slide relative to the guide groove by adjusting the structure, thereby adjusting the distance between the first molding surface and the second molding surface, changing the size of the extrusion molding opening, and adjusting the extrusion speed of the material online. This process does not require stopping the machine and removing the mold, and the operation is convenient and fast, and basically does not affect the production progress.

[0014] 2. Since the slider is movable, the connection between the rear edge of the second molding surface and the rear end surface of the slider is floating relative to the position of the rear channel, which is prone to temperature rise due to excessive local resistance to the material, and there is a risk of burning the material. Therefore, a chamfer is set at the connection between the rear edge of the second molding surface and the rear end surface. The chamfer can play a guiding role, reduce resistance, and thus reduce the risk of burning.

[0015] 3. The first limiting structure cooperates with the second limiting structure to prevent the slider from moving relative to the guide groove beyond a set stroke.

[0016] 4. The adjustment structure adopts bolts, which is not only simple in structure but also can achieve more precise adjustment.

[0017] The present invention will become more clear through the following description in conjunction with the accompanying drawings, which are used to explain the embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a front view of the adjustment plate of the extrusion die head;

[0020] Figure 2 It is the main view of the board;

[0021] Figure 3 The main view of the slider;

[0022] Figure 4 is the rear view of the slider;

[0023] Figure 5 for Figure 3 AA section view;

[0024] Figure 6 It is a partial cross-sectional view of the front view of the adjustment plate of the extrusion die head. DETAILED DESCRIPTION

[0025] Embodiments of the present invention will now be described with reference to the accompanying drawings.

[0026] Example

[0027] The specific implementation of the utility model is as follows Figures 1 to 6 As shown, an adjustment plate of an extrusion die head includes a plate body 1, a guide groove 11 is provided on the plate body 1, and a slider 2 is slidably fitted in the guide groove 11. A first molding surface 12 is provided at one end of the guide groove 11, and a second molding surface 20 is provided at one end of the slider 2. An adjustment structure for adjusting the distance between the first molding surface 12 and the second molding surface 20 is also connected to the plate body 1. The space between the first molding surface 12 and the second molding surface 20 constitutes an extrusion molding port 4.

[0028] There are at least two groups of guide grooves 11 and sliders 2 arranged on the plate body 1. In this embodiment, there are six groups of guide grooves 11 and sliders 2. Only one group of guide grooves 11 and sliders 2 may be used as required.

[0029] The sliding direction of the slider 2 and the guide groove 11 is perpendicular to the extrusion direction. The two side edges of the slider 2 and the two side edges of the guide groove 11 are slidingly matched.

[0030] The slider 2 includes a front end face 21 and a rear end face 22. The front edge of the second molding surface 20 is arranged adjacent to the front end face 21, and the rear edge of the second molding surface 20 is arranged adjacent to the rear end face 22. A chamfer 25 is provided at the connection between the rear edge of the second molding surface 20 and the rear end face 22. The chamfer 25 is 45°.

[0031] A first limiting structure 13 is provided on at least one side of the guide groove 11, and a second limiting structure 24 is provided on at least one side of the slider 2, and the first limiting structure 13 cooperates with the second limiting structure 24. In this embodiment, the first limiting structure 13 is provided on both sides of the guide groove 11, and the second limiting structure 24 is provided on both sides of the slider 2. Specifically, the first limiting structure 13 and the second limiting structure 24 are both stepped limiting structures.

[0032] The adjustment structure includes a bolt 3, which is threadedly connected to the plate body 1, and a clamping block 31 is provided at one end of the bolt 3. A clamping groove 23 is provided on the slider 2, and the clamping block 31 cooperates with the clamping groove 23. In this embodiment, the clamping groove 23 is a dovetail groove, and the clamping block 31 can rotate relative to the clamping groove 23, and the clamping block 31 is fixedly connected to the bolt 3. When in use, by rotating the bolt 3, the slider 2 can be pushed or pulled and the slider 2 can be moved relative to the guide groove 11, so as to adjust the distance between the first molding surface 12 and the second molding surface 20, and then adjust the size of the extrusion molding port 4, so as to adjust the flow rate of the material passing through the extrusion molding port 4. By timely adjusting the size of each extrusion molding port 4, the extrusion speed of the material passing through each extrusion molding port 4 is made the same, so as to ensure that the weight of the final finished product passing through each extrusion molding port 4 is consistent.

[0033] The present invention is described above in conjunction with the best embodiments, but the present invention is not limited to the embodiments disclosed above, but should cover various modifications and equivalent combinations based on the essence of the present invention.

Claims

1. An adjustment plate for an extrusion die head, comprising a plate body (1), characterized in that: A guide groove (11) is provided on the plate body (1), and a slider (2) is slidably fitted in the guide groove (11); a first shaping surface (12) is provided at one end of the guide groove (11), and a second shaping surface (20) is provided at one end of the slider (2); an adjustment structure for adjusting the distance between the first shaping surface (12) and the second shaping surface (20) is also connected to the plate body (1); and the space between the first shaping surface (12) and the second shaping surface (20) constitutes an extrusion molding port (4).

2. The adjustment plate of an extrusion die head according to claim 1, characterized in that: The direction in which the sliding block (2) and the guide groove (11) slide and cooperate is perpendicular to the extrusion direction.

3. The adjustment plate of an extrusion die head according to claim 1, characterized in that: The slider (2) comprises a front end surface (21) and a rear end surface (22); the front edge of the second modeling surface (20) is arranged adjacent to the front end surface (21), and the rear edge of the second modeling surface (20) is arranged adjacent to the rear end surface (22); a chamfer (25) is provided at the connection between the rear edge of the second modeling surface (20) and the rear end surface (22).

4. The adjustment plate of an extrusion die head according to claim 1, characterized in that: At least one side of the guide groove (11) is provided with a first limiting structure (13), and at least one side of the slider (2) is provided with a second limiting structure (24), and the first limiting structure (13) cooperates with the second limiting structure (24).

5. The adjustment plate of the extrusion die head according to claim 4, characterized in that: The first limiting structure (13) and the second limiting structure (24) are both stepped limiting structures.

6. The adjustment plate of an extrusion die head according to claim 1, characterized in that: The adjustment structure comprises a bolt (3), the bolt (3) being threadedly connected to the plate body (1), one end of the bolt (3) being provided with a clamping block (31); a clamping groove (23) being provided on the slider (2), and the clamping block (31) being matched with the clamping groove (23).

7. The adjustment plate of an extrusion die head according to claim 1, characterized in that: The guide grooves (11) and sliding blocks (2) are in at least two groups and are arranged on the plate body (1).

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