Adjusting mechanism of sheet co-extrusion equipment

Abstract

The utility model relates to an adjusting mechanism of sheet co-extrusion equipment, and belongs to the technical field of sheet plate processing equipment. Comprising an adjusting plate, a plurality of cavities are formed in the adjusting plate, a piston is arranged in each cavity, an abutting part is arranged on the outer ring of each piston, each abutting part is attached to the inner wall of the corresponding cavity, and a fixedly-connected telescopic needle valve is arranged at the bottom of each piston; the telescopic needle valve is arranged in the material injection runner in a reciprocating motion manner; according to the scheme, the air inlet device is used for controlling the pistons to move up and down in the cavity, so that the telescopic needle valve is driven to move in the material injection runner, the material injection runner and the forming mold are kept in a connected or disconnected state, and patterns formed by different stripes can be formed on the sheet; and the air inlet device is controlled by a program to inject air into the cavity at a specific frequency, so that specific stripes can be formed, and the function of customizing patterns on the sheet is realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of sheet material processing equipment and relates to an adjusting mechanism of co-extrusion sheet material equipment. Background Art

[0002] Plastic sheet refers to the plastic raw materials that are heated in a plastic extruder or plastic calender, melted, and then extruded or calendered into a plastic coil with a thickness of about 0.25-1.00mm. The sheets produced by using resins of different materials have different chemical properties. The sheets are widely used in daily life, machinery, automobiles, electronic appliances, instruments and meters, textiles, construction and other industrial fields.

[0003] However, the sheet extrusion equipment in the prior art still has some shortcomings. In order to form a striped pattern on the sheet, multiple feed ports are set in the extrusion equipment, raw materials of different colors are added to the feed ports, and then the feed ports are connected together so that stripes of various colors can be formed on the sheet plate. Although this method increases the richness of colors on the sheet, the stripes formed are relatively single and cannot meet the needs of users. Summary of the invention

[0004] The utility model aims at the problems existing in the prior art and proposes an adjusting mechanism for co-extrusion sheet equipment. The technical problem to be solved by the utility model is: how to form a specific stripe pattern on a sheet.

[0005] The purpose of the utility model can be achieved through the following technical solutions: an adjustment mechanism of a co-extruded sheet equipment, comprising an adjustment plate, wherein a plurality of chambers are arranged inside the adjustment plate, a single chamber is provided with a piston, an outer ring of the piston is provided with abutment, the abutment is fitted with an inner wall of the chamber, a fixedly connected telescopic needle valve is provided at the bottom of the piston, a first intake channel is provided at the bottom of one side of the chamber, a second intake channel is provided at the top of the other side of the chamber, a plurality of intake pipes are provided on the adjustment plate, the outer ends of the first intake channel and the second intake channel are respectively connected to a single intake pipe, the other end of the intake pipe is connected to an intake device, a color injection plate is provided at the bottom of the adjustment plate, a molding die is provided at the bottom of the color injection plate, an injection flow channel connected to the molding die is provided inside the color injection plate, and the telescopic needle valve is reciprocatingly arranged inside the injection flow channel to keep the injection flow channel and the molding die connected or disconnected.

[0006] In this scheme, the raw materials for making the sheet are injected into the molding mold, and a structure for forming the sheet is provided inside the molding mold. The color injection plate stores raw materials of other colors, and the raw materials in the color injection plate are injected into the molding mold through the injection flow channel to form a pattern on the sheet. The air intake device adopts an air compressor or other device that can compress the air and inject it into the air intake pipe, and the air intake device can press the gas into a single air intake pipe respectively, which is used to control multiple pistons to move in different directions at the same time. When the gas enters the chamber from the first intake flow channel, the pressure at the bottom of the piston increases, and the piston drives the telescopic needle valve at the bottom to move upward, so that the injection The molten metal in the material flow channel can flow into the molding mold. When gas is injected into the second inlet flow channel, the telescopic needle valve moves downward to disconnect the injection flow channel from the molding mold. Through the above method, an air intake device is used to control multiple pistons to move up and down in the chamber, thereby driving the telescopic needle valve to move inside the injection flow channel, so that the injection flow channel and the molding mold remain connected or disconnected. A pattern composed of different stripes can be formed on the sheet, and by controlling the air intake device to inject gas into the chamber at a specific frequency through a program, specific stripes can be formed, thereby realizing the function of customizing patterns on the sheet.

[0007] In the adjustment mechanism of the co-extrusion sheet equipment, a clamping sealing ring is provided on the inner side of the abutment portion, and a fixed sleeve is provided inside the color injection plate, and the sleeve wraps the middle end of the telescopic needle valve on the inner side. The sealing ring is used to improve the airtightness of the space on the upper and lower sides of the piston, so that the air pressure in the chamber can push the piston up and down, and the sleeve plays a guiding role to prevent the telescopic needle valve from deflecting.

[0008] In the adjustment mechanism of the above co-extrusion sheet equipment, a main feed port is provided on one side of the molding die, an extrusion flow channel is provided on the other side, a main branch flow channel is provided inside the molding die, and both ends of the main branch flow channel are respectively connected to the main feed port and the extrusion flow channel. The raw material of the base color is injected into the main branch flow channel from the main feed port, and then extruded from the extrusion flow channel into the molding die, and cooled to form a sheet.

[0009] In the adjustment mechanism of the co-extrusion sheet equipment, an upper feed port is provided on the side wall of the color injection plate, the upper feed port is connected to an upper branch channel provided inside the color injection plate, and the injection channel is connected to the inner bottom of the upper branch channel. Other color materials for forming the stripe pattern are injected from the upper feed port and flow into the injection channel after the diversion effect of the upper branch channel.

[0010] In the adjustment mechanism of the above co-extrusion sheet equipment, the injection channel is connected to the extrusion channel in the molding die, and the bottom end of the telescopic needle valve is arranged at the connection between the injection channel and the extrusion channel. Since the injection channel is connected to the extrusion channel, the raw material in the injection plate can be directly injected into the extrusion channel to form a plurality of stripe patterns on the sheet, and the stripes are connected to the sheet by inlaying and will not fall off.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] 1. In this scheme, an air intake device is used to control multiple pistons to move up and down in the chamber, thereby driving the telescopic needle valve to move inside the injection channel, so that the injection channel and the molding mold remain connected or disconnected, and a pattern composed of different stripes can be formed on the sheet. By controlling the air intake device to inject gas into the chamber at a specific frequency through program control, specific stripes can be formed, thereby realizing the function of customizing patterns on the sheet.

[0013] 2. In this solution, since the injection channel is connected to the extrusion channel, the raw material in the injection plate can be directly injected into the extrusion channel to form multiple stripe patterns on the sheet, and the stripes are connected to the sheet by inlaying and will not fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a right side half-section structural schematic diagram of the utility model;

[0016] Figure 3 It is a schematic diagram of the cross-sectional structure and partial enlarged structure of the injection flow channel of the utility model.

[0017] In the figure, 1, adjusting plate; 1a, chamber; 1b, first inlet flow channel; 1c, second inlet flow channel; 2, inlet pipe; 3, color injection plate; 3a, upper feed port; 3b, upper branch flow channel; 3c, injection flow channel; 3d, sleeve; 4, molding die; 4a, extrusion flow channel; 4b, main branch flow channel; 4c, main feed port; 5, telescopic needle valve; 6, piston; 6a, abutment portion; 6b, sealing ring. DETAILED DESCRIPTION

[0018] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0019] Example

[0020] like Figure 1 Combination Figure 2As shown, it includes an adjustment plate 1, a plurality of fixedly connected air intake pipes 2 are provided on the top of the adjustment plate 1, a color injection plate 3 is provided below the adjustment plate 1, a molding die 4 is provided at the bottom of the color injection plate 3, an extrusion flow channel 4a is provided on one side of the molding die 4, and a main feed port 4c is provided on the other side, a main branch flow channel 4b is provided inside the molding die 4, and both ends of the main branch flow channel 4b are respectively connected to the extrusion flow channel 4a and the main feed port 4c, an upper feed port 3a is provided on one side of the color injection plate 3, the upper feed port 3a is provided above the main feed port 4c, and the upper feed port 3a is connected to the upper branch flow channel 3b provided inside the color injection plate 3.

[0021] like Figure 3 As shown, a plurality of injection channels 3c are provided at the bottom of the inner side of the upper branch channel 3b, and the bottom end of the injection channel 3c is connected to the extrusion channel 4a, and a reciprocating telescopic needle valve 5 is provided inside each of the injection channels 3c. A sleeve 3d is provided inside the color injection plate 3, and the telescopic needle valve 5 is also provided on the inner side of the sleeve 3d. A plurality of independent chambers 1a are provided inside the regulating plate 1, and the number of the chambers 1a is the same as the number of the injection channels 3c. A piston 6 is provided, the bottom of the piston 6 is fixedly connected to the telescopic needle valve 5, a supporting portion 6a is provided on the side of the piston 6, the supporting portion 6a is in contact with the inner wall of the chamber 1a, a clamping sealing ring 6b is provided on the supporting portion 6a, a first intake air channel 1b is provided at the bottom of one side of the chamber 1a, a second intake air channel 1c is provided at the top of the other side of the chamber 1a, and the outer ends of the first intake air channel 1b and the second intake air channel 1c are respectively connected to a single intake pipe 2.

[0022] The working principle of this scheme is as follows: Figure 1-3 As shown, after the raw material of the base color is heated to a molten state, it is injected into the main branch channel 4b from the main feed port 4c, and then extruded into the molding die 4 from the extrusion channel 4a, and cooled to form a sheet. At the same time, raw materials of other colors are injected into the color injection plate 3 from the upper feed port 3a, and injected into the extrusion channel 4a through the injection channel 3c to form stripes of this color on the sheet.

[0023] Since the air intake device uses an air compressor or other device that can compress air and inject it into the air intake pipe 2, and the air intake device can press the gas into a single air intake pipe 2 respectively, it is used to control multiple pistons 6 to move in different directions at the same time. When the gas enters the chamber 1a from the first air intake channel 1b, the pressure at the bottom of the piston 6 increases, and the piston 6 drives the telescopic needle valve 5 at the bottom to move upward, so that the molten liquid in the injection channel 3c can flow into the molding mold 4. When the gas is injected into the second air intake channel 1c, the telescopic needle valve 5 moves downward, so that the injection channel 3c is disconnected from the molding mold 4. A pattern composed of different stripes can be formed on the sheet, and by controlling the air intake device to inject gas into the chamber 1a at a specific frequency through program control, specific stripes can be formed, realizing the function of customizing patterns on the sheet.

[0024] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0025] Although this article uses more terms such as 1, adjusting plate; 1a, chamber; 1b, first inlet flow channel; 1c, second inlet flow channel; 2, air intake pipe; 3, color injection plate; 3a, upper feed port; 3b, upper branch flow channel; 3c, injection flow channel; 3d, sleeve; 4, molding die; 4a, extrusion flow channel; 4b, main branch flow channel; 4c, main feed port; 5, telescopic needle valve; 6, piston; 6a, abutment portion; 6b, sealing ring, etc., it does not exclude the possibility of using other terms. The use of these terms is only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. An adjustment mechanism for a co-extrusion sheet device, comprising an adjustment plate (1), wherein a plurality of chambers (1a) are arranged inside the adjustment plate (1), wherein a piston (6) is arranged inside a single chamber (1a), wherein an abutment portion (6a) is arranged on the outer ring of the piston (6), wherein the abutment portion (6a) is in contact with the inner wall of the chamber (1a), and a retractable needle valve (5) is fixedly connected to the bottom of the piston (6), wherein: A first intake channel (1b) is provided at the bottom of one side of the chamber (1a), and a second intake channel (1c) is provided at the top of the other side of the chamber (1a). A plurality of intake pipes (2) are provided on the regulating plate (1). The outer ends of the first intake channel (1b) and the second intake channel (1c) are respectively connected to a single intake pipe (2). The other end of the intake pipe (2) is connected to an intake device. A color injection plate (3) is provided at the bottom of the regulating plate (1). A molding mold (4) is provided at the bottom of the color injection plate (3). An injection channel (3c) connected to the molding mold (4) is provided inside the color injection plate (3). The telescopic needle valve (5) is reciprocatingly arranged inside the injection channel (3c) to keep the injection channel (3c) and the molding mold (4) connected or disconnected.

2. The adjusting mechanism of the co-extrusion sheet equipment according to claim 1, characterized in that: A clamping sealing ring (6b) is provided on the inner side of the abutting portion (6a), and a fixed sleeve (3d) is provided inside the color injection plate (3), and the sleeve (3d) wraps the middle end of the telescopic needle valve (5) on the inner side.

3. The adjusting mechanism of the co-extrusion sheet equipment according to claim 1, characterized in that: A main feed port (4c) is provided on one side of the molding die (4), and an extrusion flow channel (4a) is provided on the other side; a main branch flow channel (4b) is provided inside the molding die (4), and both ends of the main branch flow channel (4b) are respectively connected to the main feed port (4c) and the extrusion flow channel (4a).

4. The adjusting mechanism of the co-extrusion sheet equipment according to claim 3, characterized in that: An upper feed port (3a) is provided on the side wall of the color injection plate (3), the upper feed port (3a) is connected to an upper branch flow channel (3b) provided inside the color injection plate (3), and the injection flow channel (3c) is connected to the inner bottom of the upper branch flow channel (3b).

5. The adjusting mechanism of the co-extrusion sheet equipment according to claim 4, characterized in that: The injection flow channel (3c) is connected to the extrusion flow channel (4a) in the molding die (4), and the bottom end of the telescopic needle valve (5) is arranged at the connection between the injection flow channel (3c) and the extrusion flow channel (4a).

Images