A screw extrusion device for processing PE bags

Abstract

The utility model relates to a kind of screw extrusion device for PE bag processing, including machine body, the upper end of machine body is provided with the hopper being communicated with machine body, still including plc controller, two temporary storage plates and two cutoff plates, the end of two temporary storage plates is attached, the end of separation is respectively rotated with the inner wall of hopper by remote control electric rotating shaft, so that temporary storage plate can be controlled to open and close hopper when rotating, weighing module is set on temporary storage plate, plc controller is electrically connected with remote control electric rotating shaft and weighing module respectively, the left and right sides of the upper end of hopper are provided with two vertical direction extension fixed rods, two fixed rods are provided with fixed frame suspended above the opening of hopper between.The screw extrusion device for PE bag processing, by the material on temporary storage plate reaching preset weight, start cutoff plate to intercept the material that has not fallen in the air, compared with the excess material of the area from material inlet to above temporary storage plate in traditional design, improve the accuracy of proportioning, improve product quality.

Description

Technical Field

[0001] This utility model relates to the field of screw extruder technology, specifically to a screw extrusion device for PE bag processing. Background Technology

[0002] PE bags often require the use of screw extruders in their processing. A screw extruder consists of an Archimedes screw rotating within a heated barrel. Due to its simple structure, ease of manufacture, high processing efficiency, and low price, it is widely used and is the most technologically mature and widely adopted type of extruder. However, current screw extruders typically feed material directly into the barrel. Because the proportions of each material need to be controlled, direct feeding requires weighing the material beforehand. For different products with varying material ratios, multiple weighings are necessary to suit different formulations, making the operation cumbersome and reducing work efficiency.

[0003] Existing products use a weighing pan with a weight sensor installed inside the hopper. During the feeding process, the material on the weighing pan continuously increases. When the preset weight is reached, feeding stops, and the weighing pan is then driven to pour the material into the machine. However, this design has the following problems: when the material on the weighing pan reaches the preset weight and feeding stops, a considerable amount of material will remain in the area between the feeding port and the weighing pan. This will cause the actual weight input into the hopper to be greater than the preset weight, resulting in inaccurate material ratios and affecting product quality. Therefore, a screw extrusion device for PE bag processing is proposed to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a screw extrusion device for PE bag processing, which has the advantage of more accurate weighing.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a screw extrusion device for PE bag processing, comprising a machine body, a hopper connected to the upper end of the machine body, a PLC controller, two temporary storage plates, and two cutting plates. The two temporary storage plates are attached to each other at opposite ends, and their opposite ends are rotatably connected to the inner wall of the hopper via remote-controlled electric rotating shafts, so that the opening and closing of the hopper can be controlled when the temporary storage plates rotate. A weighing module is provided on the temporary storage plates. The PLC controller is electrically connected to the remote-controlled electric rotating shaft and the weighing module respectively. Two vertically extending fixing rods are provided on the left and right sides of the upper end of the hopper. A fixing frame is provided between the two fixing rods and suspended above the opening of the hopper. A positioning tube that penetrates the hopper is inserted into the fixing frame. The opposite ends of the two cutting plates are rotatably connected to the fixing rods, and their opposite ends can be attached. The positioning tube is located on the axis of symmetry of the two cutting plates.

[0006] Furthermore, the positioning tube is funnel-shaped, wider at the top and narrower at the bottom, and is located on the center line of the hopper.

[0007] Furthermore, the cutting plate is rotatably connected to the inner wall of the hopper via a motor, and the maximum angle between the cutting plate and the horizontal is forty degrees, so that the distance between the two cutting plates is greater than the diameter of the positioning tube.

[0008] Furthermore, one side of the cut-off plate is located on the same vertical reference plane as the edge of the hopper opening.

[0009] Furthermore, the machine body is provided with a receiving and positioning seat, which is located on the side closer to the edge of the cut-off plate and the hopper, and the positioning seat is an L-shaped base.

[0010] Compared with the prior art, the technical solution of this application has the following beneficial effects: This screw extrusion device for PE bag processing uses a cutting plate to intercept material that has not yet fallen from the air when the material on the temporary storage plate reaches a preset weight. Compared with the excess material feeding in the area from the feed port to the top of the temporary storage plate in traditional designs, this reduces the ratio error, improves the accuracy of the mixing ratio, and thus obtains the target product and improves product quality. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a side view of the present invention.

[0012] In the diagram: 1. Machine body; 2. Hopper; 3. Temporary storage plate; 31. Weighing module; 4. Cut-off plate; 5. Fixing rod; 51. Fixing frame; 6. Positioning tube; 7. Container positioning seat. Detailed Implementation

[0013] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0014] Please see Figure 1-2This embodiment of a screw extrusion device for PE bag processing includes a machine body 1, a hopper 2 connected to the upper end of the machine body 1, a PLC controller, two temporary storage plates 3 and two cutting plates 4. The two temporary storage plates 3 are attached to each other at opposite ends, and the opposite ends are rotatably connected to the inner wall of the hopper 2 via remote-controlled electric rotating shafts, so that the opening and closing of the hopper 2 can be controlled when the temporary storage plates 3 rotate. A weighing module 31 is provided on the temporary storage plates 3. The PLC controller is electrically connected to the remote-controlled electric rotating shaft and the weighing module 31 respectively. Two vertically extending fixing rods 5 are provided on the left and right sides of the upper end of the hopper 2. A fixing frame 51 suspended above the opening of the hopper 2 is provided between the two fixing rods 5. A positioning tube 6 that penetrates the hopper 2 is inserted into the fixing frame 51. The opposite ends of the two cutting plates 4 are rotatably connected to the fixing rods 5, and the opposite ends can be attached. The positioning tube 6 is located on the axis of symmetry of the two cutting plates 4.

[0015] This device uses a rotating cut-off plate 4, which is set during material feeding. The cut-off plate 4 tilts downwards, allowing material to pass through its spacing. When the material on the temporary storage plate 3 reaches a preset weight, the cut-off plate 4 is activated, causing it to come together and block material that is still in the air and has not yet fallen. Compared to traditional designs, this device can intercept most of the material in the area from the feeding port to the top of the temporary storage plate, reducing the ratio error of various materials, improving the accuracy of the mixing ratio, and thus obtaining the target product and improving product quality.

[0016] Furthermore, the positioning tube 6 is trumpet-shaped, wider at the top and narrower at the bottom, and is located on the center line of the hopper 2.

[0017] The device is designed with a funnel shape, with a large opening at the top and a small opening at the bottom, which makes it easier to insert materials into the positioning tube 6.

[0018] Furthermore, the cutting plate 4 is rotatably connected to the inner wall of the hopper 2 via a motor, and the maximum angle between the cutting plate 4 and the horizontal is forty degrees, so that the distance between the two cutting plates 4 is greater than the diameter of the positioning tube 6.

[0019] This application provides a preferred embodiment. Since the device can solve the problem of controlling the rotation of the cutting plate 4 and the temporary storage plate 3 through various driving elements, such as motors, electric shafts, and motors, these are all existing technologies and not innovative technologies of this patent. Therefore, this application will not describe them in detail. Since the device intercepts the material in the air by inputting it at the positioning tube 6 and the cutting plate 4 intercepts the material after the material reaches a preset value, the horizontal angle of the cutting plate 4 should not be too large in order to ensure that the cutting plate 4 can intercept in time. Otherwise, the rotation stroke required for cutting will be too long, making it inconvenient to intercept. It is also necessary to ensure that the distance between the two cutting plates 4 in the non-intercepting state is greater than the diameter of the positioning tube 6 to avoid some material being conveyed and left on the intercepting plate during material filling. Although this will not affect the final weight measurement, it will cause inconvenience in use. Since the material input into the screw extruder during the production of PE bags is usually in a molten state, it will not splash. Therefore, there is no need to solve the problem of easy splashing onto the intercepting plate during material conveying, which causes inconvenience in use. It is also not easy to leak from the gap between the two plates. Therefore, there is no need to solve the sealing problem between the plates.

[0020] Furthermore, one side of the cut-off plate 4 is located on the same vertical reference plane as the edge of the opening of the hopper 2.

[0021] After the cutting plate 4 intercepts the material, in order to facilitate the user to clean or recycle the material on the cutting plate 4, the cutting plate 4 is set to extend to the edge of the opening of the hopper 2, so that the user can hold the container and place it at the same level as the opening of the hopper 2 to recycle the material into the container.

[0022] Furthermore, the machine body 1 is provided with a receiving and positioning seat 7, which is located on the side closer to the edge of the cutting plate 4 and the hopper 2. The positioning seat is an L-shaped base.

[0023] The device features a receiving and positioning base 7 to facilitate users in placing containers for recycling materials. It can also be equipped with eye-catching signs and slogans to guide unfamiliar users in recycling materials in a convenient way.

[0024] The working principle of the above embodiments is as follows: When in use, the device aligns with the positioning tube 6 to feed material into the hopper 2. The material will be conveyed to the top of the temporary storage plate 3. At this time, the weighing module 31 detects the weight of the material in real time. When the weight of the material reaches the preset value, the weighing module 31 sends an electrical signal to the PLC controller. The PLC controller controls the motor to make the temporary storage plate 3 rotate downward and open. The material on the temporary storage plate 3 continues to be conveyed into the machine body 1 under the influence of gravity. When the weight reaches the preset value, the cutting plate 4 flips upward and sticks to each other, intercepting the material still in the air and preventing it from falling to the temporary storage plate 3. Compared with the traditional design, this design can intercept most of the material in the area from the feeding port to the top of the temporary storage plate, thereby improving the accuracy of the proportioning and improving product quality.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A screw extrusion device for processing PE bags, comprising a body (1), wherein a hopper (2) communicating with the body (1) is provided at the upper end of the body (1), characterized in that: It also includes a PLC controller, two temporary storage plates (3) and two cut-off plates (4). The two temporary storage plates (3) are attached to each other at one end and connected to the inner wall of the hopper (2) via a remote-controlled electric rotating shaft. When the temporary storage plates (3) rotate, the hopper (2) can be opened and closed. A weighing module (31) is provided on the temporary storage plate (3). The PLC controller is electrically connected to the remote-controlled electric rotating shaft and the weighing module (31) respectively. Two vertically extending fixing rods (5) are provided on the left and right sides of the upper end of the hopper (2). A fixing frame (51) is provided between the two fixing rods (5) and suspended above the opening of the hopper (2). A positioning tube (6) that is connected to the hopper (2) is inserted into the fixing frame (51). The two cut-off plates (4) are connected to the fixed rods (5) at one end and can be attached to each other at the other end. The positioning tube (6) is located on the axis of symmetry of the two cut-off plates (4).

2. The screw extrusion device for PE bag processing according to claim 1, characterized in that: The positioning tube (6) is flared, wider at the top and narrower at the bottom, and is located on the center line of the hopper (2).

3. The screw extrusion device for PE bag processing according to claim 1, characterized in that: The cutting plate (4) is rotatably connected to the inner wall of the hopper (2) via a motor. The maximum angle between the cutting plate (4) and the horizontal is 40 degrees, so that the distance between the two cutting plates (4) is greater than the diameter of the positioning tube (6).

4. The screw extrusion device for PE bag processing according to claim 1, characterized in that: One side of the cut-off plate (4) is located on the same vertical reference plane as the edge of the opening of the hopper (2).

5. The screw extrusion device for PE bag processing according to claim 4, characterized in that: The machine body (1) is provided with a receiving positioning seat (7), which is located on the side closer to the edge of the cut-off plate (4) and the hopper (2). The positioning seat is an L-shaped base.

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