Raw material granulator for thin film production

Abstract

The utility model relates to the technical field of film production and processing. A raw material granulator for film production comprises a granulating box, a feeding part is arranged at the top of the granulating box, a cutting part is arranged in the granulating box, a screening part is arranged in the granulating box below the cutting part, and a storage part correspondingly matched with the screening part is arranged below the screening part. According to the raw material granulator for thin film production, manual operation and requirements can be reduced, raw materials can be rapidly and stably cut into granules, the raw materials cut into the granules can be screened, and the raw materials with unqualified sizes are prevented from entering subsequent procedures. The pelletizing device solves the problems that in the prior art, an existing pelletizing device needs a large amount of manual operation for feeding or supporting, the pelletizing device works unstably, the yield is difficult to guarantee, the pelletizing device cannot screen pelletized raw materials, some granular raw materials with unqualified sizes can be conveyed to the next procedure to be conveyed, and the working efficiency is high. And the finished product effect is easily influenced.

Description

Technical Field

[0001] The invention relates to the technical field of film production and processing, in particular to a raw material pelletizer for film production. Background Art

[0002] The production process of plastic film includes melting, extrusion, inflation, winding and pressing. First, the raw material particles are poured into the machine, and after the raw material is melted, the melt is squeezed out through the die head in a round shape. During the extrusion process, a blower is used to blow it thin, and then it is rolled up and put on the bag press to be pressed into a plastic bag. The raw materials used for plastic bags are all very low-grade raw materials, that is, recycled materials.

[0003] The most commonly used plastic film is polyethylene film, namely PE film; PE film has the advantages of moisture resistance and low moisture permeability; PE film can be manufactured into products with different performances such as low density, medium density and high density according to different manufacturing methods and control means. At present, the heat resistance and tensile strength of PE film are not good and need to be optimized; in addition, the production of PE film requires water cooling, air drying, pelletizing and other processes; and most of the current pelletizing devices require manual operation, manual feeding and support, etc., and on the other hand, the pelletizing device cannot screen the raw materials after pelletizing, and some granular raw materials with unqualified sizes will also be transported to the next process for transportation, so it is necessary to improve it. Summary of the invention

[0004] The invention provides a raw material pelletizer for film production, which can reduce manual operation and demand, can quickly and stably cut raw materials into granules, and can screen the granulated raw materials to prevent raw materials with unqualified sizes from entering subsequent processes; the invention solves the technical problems existing in the prior art that the current pelletizer requires a large amount of manual operation for feeding or supporting, the pelletizer works unstably, and it is difficult to ensure the yield rate, the pelletizer cannot screen the raw materials after pelletizing, and some granular raw materials with unqualified sizes will also be transported to the next process for transportation, which is easy to affect the effect of the finished product.

[0005] The above technical problems of the present invention are solved by the following technical solutions: a raw material pelletizer for film production, comprising a pelletizing box, a feeding component is provided on the top of the pelletizing box, a cutting component is provided in the pelletizing box, a screening component is provided in the pelletizing box below the cutting component, and a corresponding storage component is provided below the screening component; the cutting component comprises an extrusion roller and a cutting roller rotatably installed in the pelletizing box, the surface of the extrusion roller is smooth, and a plurality of upwardly protruding cutting knives are provided on the surface of the cutting roller at annular intervals; the screening component comprises a screening plate obliquely fixed below the cutting component, a plurality of screening holes are provided on the top of the screening plate, and the bottom of the screening plate is smooth. During operation, the upper right corner of the stick-shaped raw material is placed into the feeding component. The function of the feeding component is to assist the feeding of the raw materials. The function of the cutting component is to cut the stick-shaped raw material into granules. The granulated raw materials fall down onto the screening component for screening. The storage component can store granular raw materials of qualified size and unqualified size respectively. When the raw materials reach the cutting component, the cutting knife on the surface of the cutting roller cooperates with the extrusion roller to cut the raw materials into granules. The granulated raw materials will fall down onto the screening component for screening; the function of the screening plate is to screen raw materials of qualified size. Granular raw materials that meet the requirements will fall from the screening hole, and raw materials that are larger and do not meet the requirements will fall forward along the screening plate under the action of gravity.

[0006] Preferably, the feeding component comprises a guide block fixed on the top of the pelletizing box, a plurality of positioning holes are provided on the top of the guide block, and clamping pieces are symmetrically provided on the front and rear sides of the guide block. When working, the upper right side of the stick-shaped raw material is put into the positioning hole and the guide block, and the raw material extends downward to the cutting component, and the clamping pieces on the front and rear sides of the guide block can clamp the raw material to ensure that the feeding of the raw material is stable and will not fall over.

[0007] Preferably, the pressing member comprises pressing brackets symmetrically fixed on the front and rear sides of the pelletizing box, each pressing bracket is rotatably provided with a feeding roller, and a feeding motor is fixedly provided on the rotating shaft of each feeding roller. The feeding roller can be clamped on both sides of the stick-shaped raw material, and the feeding motor can drive the feeding roller to rotate to realize auxiliary feeding.

[0008] Preferably, the clamping member further comprises clamping chutes symmetrically provided on both sides of the clamping bracket, the feeding roller can slide forward and backward along the clamping chutes, a clamping plate is provided on the outside of each feeding roller, and a clamping spring is provided between the clamping plate and the clamping bracket. When working, the upper right corner of the stick-shaped raw material is placed into the positioning hole and the guide block, and the raw material extends downward to the cutting part, the clamping spring will clamp the clamping plate and the feeding roller toward the middle, the feeding roller will be clamped on both sides of the raw material, the feeding motor can drive the feeding roller to rotate, and the feeding roller can realize feeding.

[0009] Preferably, the cutting component further comprises a cutting drive box fixed outside the pelletizing box, wherein the cutting drive box is provided with two cutting motors corresponding to the squeezing roller and the cutting roller respectively. The function of the cutting motor is to provide power for the rotation of the squeezing roller and the cutting roller, and the squeezing roller and the cutting roller rotate relative to each other to realize cutting.

[0010] Preferably, a plurality of telescopic rods are fixedly provided at the left end of the screen plate, each telescopic rod is sleeved with a force storage spring, a vibration box is fixedly provided at the right side of the screen plate, a vibration motor is provided in the vibration box, a vibration pressure rod extends from the vibration motor, a cam is rotatably provided at the end of the vibration pressure rod, and the cam is against the right side of the screen plate. The granular raw materials will fall down onto the screen plate, and the cam on the right side of the screen plate will rotate cyclically driven by the vibration motor. The screen plate will always be in contact with the cam to realize left and right reciprocating vibration under the action of the left force storage spring and the telescopic rod, and the granular raw materials of qualified size will pass through the screen hole and fall down, and the granular raw materials of oversized size will fall forward along the inclined surface of the screen plate.

[0011] Preferably, the storage component includes a good material storage box fixed below the screening plate, and the storage component also includes a bad material storage box fixed at the outlet at the lower end of the screening plate. The granular raw materials are screened under the action of the screening component, and the granular raw materials of qualified size will fall down into the good material storage box, and the granular raw materials of oversized size will fall into the bad material storage box for recycling and storage.

[0012] Therefore, the raw material pelletizer for film production of the present invention has the following advantages: it can effectively reduce the operation and demand for manual labor, can be used in conjunction with automated machinery for production, can quickly and stably cut the raw materials into pellets, and can also screen the pelletized raw materials to prevent raw materials of unqualified size from entering subsequent processes, thereby effectively ensuring the quality of the finished product. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a three-dimensional structural schematic diagram of a raw material pelletizer for film production.

[0014] Figure 2 yes Figure 1 Schematic diagram of the top view structure.

[0015] Figure 3 yes Figure 1 Schematic diagram of the main structure.

[0016] Figure 4 yes Figure 1 Schematic diagram of the left view structure.

[0017] Figure 5 yes Figure 1 Schematic diagram of the left-side sectional structure.

[0018] Figure 6yes Figure 1 Schematic diagram of the top view of the cross-section structure at the mid-cut drive box.

[0019] Figure 7 yes Figure 1 Schematic diagram of the cross-sectional structure from top view at the middle screening box.

[0020] In the figure, a pelletizing box 1, a guide block 2, a positioning hole 3, a clamping bracket 4, a clamping chute 5, a feeding roller 6, a feeding motor 7, a clamping plate 8, a clamping spring 9, an extrusion roller 10, a cutting roller 11, a cutting knife 12, a cutting drive box 13, a cutting motor 14, a screening box 15, a screening plate 16, a screening hole 17, a telescopic rod 18, a force storage spring 19, a vibration box 20, a vibration motor 21, a vibration pressure rod 22, a cam 23, a good product storage box 24, and a bad product storage box 25. DETAILED DESCRIPTION

[0021] The technical solution of the invention is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0022] Example:

[0023] like Figure 1 and 2 As shown in 3, 4, 5, 6 and 7, a raw material pelletizer for film production includes a pelletizing box 1, a feeding component is installed on the top of the pelletizing box 1, the feeding component includes a guide block 2 fixed on the top of the pelletizing box 1, a plurality of positioning holes 3 of the same size are opened at the center of the top of the guide block 2, and clamping parts are symmetrically installed on the front and rear sides of the guide block 2.

[0024] The clamping part includes a clamping bracket 4 symmetrically fixed on the front and rear sides of the guide block 2, and each clamping bracket 4 is provided with a clamping groove 5 on the left and right sides. A feeding roller 6 is slidably installed in the clamping groove 5, and a feeding motor 7 is fixed on the rotating shaft at the end of each feeding roller 6. The clamping part also includes a clamping plate 8 mounted on the rotating shaft of the feeding roller 6, and a clamping spring 9 is installed between each clamping plate 8 and the clamping bracket 4.

[0025] The pelletizing box 1 is provided with a cutting component, which includes an extrusion roller 10 and a cutting roller 11 rotatably installed in the pelletizing box 1. The surface of the extrusion roller 10 is smooth, and a plurality of upwardly protruding cutting knives 12 are fixed to the surface of the cutting roller 11 at annular intervals.

[0026] The cutting component also includes a cutting drive box 13 fixedly mounted on the outside of the pelletizing box 1 , and two cutting motors 14 respectively connected to the squeezing roller 10 and the cutting roller 11 are installed in the cutting drive box 13 .

[0027] A screening component is installed below the pelletizing box 1, and the screening component includes a screening box 15 fixedly installed below the pelletizing box 1, a screening plate 16 is obliquely installed in the screening box 15, a plurality of screening holes 17 are opened on the top of the screening plate 16, and the bottom of the screening plate 16 is smooth and extends outside the screening box 15.

[0028] The left end of the screen plate 16 is fixedly connected with two telescopic rods 18, and each telescopic rod 18 is sleeved with a force storage spring 19. A vibration box 20 is fixedly installed on the outside of the screen box 15 at the right end of the screen plate 16, and a vibration motor 21 is installed in the vibration box 20. The vibration motor 21 extends to the left side with a vibration pressure rod 22, and a cam 23 is fixedly installed at the end of the vibration pressure rod 22, and the cam 23 abuts against the right end of the screen plate 16.

[0029] A storage component is installed below the screening component, which includes a good material storage box 24 fixed below the screening box 15 and corresponding to the screening holes 17 , and a bad material storage box 25 fixed at the front end discharge port of the screening plate 16 .

[0030] During operation, the upper right corner of the stick-shaped raw material is placed into the positioning hole 3 and the guide block 2, and the raw material extends downward to the cutting component. The clamping spring 9 will press the clamping plate 8 and the feeding roller 6 toward the middle, and the feeding roller 6 will be pressed on both sides of the raw material. The feeding motor 7 can drive the feeding roller 6 to rotate, and the feeding roller 6 can realize feeding.

[0031] When the raw material reaches the cutting component, the cutter 12 on the surface of the cutting roller 11 cooperates with the extrusion roller 10 to cut the raw material into granules, and the granulated raw material will fall downward onto the screen plate 16. The cam 23 on the right side of the screen plate 16 rotates in a circle driven by the vibration motor 21. The screen plate 16 will always be in contact with the cam 23 under the action of the left side storage spring 19 and the telescopic rod 18 to achieve left and right reciprocating vibration. Granular raw materials of qualified size will pass through the screen hole 17 and fall into the good product storage box 24, and granular raw materials of oversized size will fall along the screen plate 16 into the inferior product storage box 25 for recycling and storage.

Claims

1. A raw material pelletizer for film production, characterized in that: It comprises a pelletizing box, wherein a feeding part is arranged on the top of the pelletizing box, a cutting part is arranged inside the pelletizing box, a screening part is arranged inside the pelletizing box below the cutting part, and a corresponding storage part is arranged below the screening part; the cutting part comprises an extruding roller and a cutting roller rotatably mounted in the pelletizing box, the surface of the extruding roller is smooth, and a plurality of upwardly protruding cutting knives are arranged at annular intervals on the surface of the cutting roller; the screening part comprises a screening plate obliquely fixed below the cutting part, a plurality of screening holes are opened on the top of the screening plate, and the bottom of the screening plate is smooth.

2. A raw material pelletizer for film production according to claim 1, characterized in that: The feeding component comprises a guide block fixed on the top of the pelletizing box, a plurality of positioning holes are opened on the top of the guide block, and pressing pieces are symmetrically arranged on the front and rear sides of the guide block.

3. A raw material pelletizer for film production according to claim 2, characterized in that: The pressing member comprises pressing brackets symmetrically fixed on the front and rear sides of the pelletizing box, each pressing bracket is rotatably provided with a feeding roller, and a feeding motor is fixedly provided on the rotating shaft of each feeding roller.

4. A raw material pelletizer for film production according to claim 3, characterized in that: The clamping member also includes clamping grooves symmetrically opened on both sides of the clamping bracket. The feeding roller can slide back and forth along the clamping grooves. A clamping plate is provided on the outside of each feeding roller, and a clamping spring is provided between the clamping plate and the clamping bracket.

5. The raw material pelletizer for film production according to claim 1, characterized in that: The cutting component also includes a cutting drive box fixed outside the pelletizing box, and the cutting drive box is provided with two cutting motors corresponding to the squeezing roller and the cutting roller respectively.

6. A raw material pelletizer for film production according to claim 1, characterized in that: A plurality of telescopic rods are fixedly provided at the left end of the screen plate, each of which is provided with a force storage spring. A vibration box is fixedly provided at the right side of the screen plate, a vibration motor is provided in the vibration box, a vibration pressure rod extends in the vibration motor, and a cam is rotatably provided at the end of the vibration pressure rod, which abuts against the right side of the screen plate.

7. The raw material pelletizer for film production according to claim 1, characterized in that: The material storage component comprises a good material storage box fixed below the screening plate, and the material storage component also comprises a bad material storage box fixed at the material outlet at the lower end of the screening plate.

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