A raw material screening device for plastic film processing

Abstract

The utility model discloses a raw material screening device for plastic film processing belongs to plastic film processing technical field. This kind of raw material screening device for plastic film processing, including shell subassembly, vibration subassembly and dismounting subassembly, vibration subassembly includes square frame, and the upper of square frame is equipped with magnet frame, and the inside of magnet frame is equipped with sieve plate, and the outer wall of sieve plate is attached with the inner wall of magnet frame, and the inner wall of magnet frame is located at four corners and is all seted up with the slot of inserting, and dismounting subassembly includes four connecting barrels, and four connecting barrels are installed respectively in the outer wall of sieve plate and is located at four corners, and the outer wall of connecting barrel all is seted up with the through slot, and the inside of through slot is slidably connected with the plug -in block, and the one end of plug -in block extends to the slot, and the inside of connecting barrel is seted up with the sliding slot, and the sliding slot is linked together with the through slot, and the inside of sliding slot is slidably connected with the extrusion block, and the one end of extrusion block is the wedge structure, and the one end of plug -in block near extrusion block is the wedge structure, and the wedge end of extrusion block and the wedge end of plug -in block are matched.

Description

Technical Field

[0001] This utility model relates to the field of plastic film processing technology, specifically to a raw material screening device for plastic film processing. Background Technology

[0002] Raw material screening devices for plastic film processing are specialized equipment used in the plastic film production process to screen and classify raw materials such as plastic granules. Their core function is to remove impurities and irregularly shaped particles from the raw materials and classify them according to particle size, shape, and other specifications. This ensures that the raw materials entering subsequent processing stages, such as extrusion and blown film production, are uniform in texture and pure, thereby guaranteeing the quality of the plastic film.

[0003] Based on the above, the inventors have discovered the following problems: the screening components of current screening devices are mostly fixedly connected, making it difficult to quickly replace the screen plates with corresponding apertures according to the raw material screening particle size required for different plastic film processing. This results in poor adaptability of the screening device to different screening requirements, necessitating the replacement of different models of equipment to screen raw materials with different screening particle size requirements, which affects the raw material screening efficiency and the subsequent film processing quality.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a raw material screening device for plastic film processing, in order to achieve a more practical value. Utility Model Content

[0005] The purpose of this invention is to provide a raw material screening device for plastic film processing to solve the problems mentioned in the background art.

[0006] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0007] A raw material screening device for plastic film processing includes a housing assembly, a vibration assembly, and a disassembly assembly. The vibration assembly includes a square frame with a magnet frame positioned above it. A screen plate is located inside the magnet frame, with the outer wall of the screen plate fitting against the inner wall of the magnet frame. Slots are provided on the inner walls of the magnet frame at each of its four corners. The disassembly assembly includes four connecting cylinders, each mounted on the outer wall of the screen plate at one of its four corners. Each connecting cylinder has a through groove on its outer wall, and an insert block is slidably connected inside the through groove. One end of the insert block extends into the slot. A sliding groove is provided inside the connecting cylinder, communicating with the through groove. An extrusion block is slidably connected inside the sliding groove. One end of the extrusion block has a wedge-shaped structure, and the end of the insert block near the extrusion block also has a wedge-shaped structure, with the wedge-shaped end of the extrusion block matching the wedge-shaped end of the insert block.

[0008] Furthermore, a screw hole is provided at the center of the extrusion block, and a screw rod is threaded into the screw hole. The two ends of the screw rod are rotatably connected to the inner wall of the slide groove, and the upper end of the screw rod extends through the connecting cylinder to the outside. A screw groove is provided inside the upper end of the screw rod.

[0009] The beneficial effects of adopting the above-mentioned further solution are that, through the threaded connection between the screw and the extrusion block and the sliding fit between the extrusion block and the slide groove, the extrusion block can be precisely driven; when the screw is rotated, the extrusion block moves axially along the slide groove, and its wedge-shaped end can stably push the insert block to slide along the through groove, thereby controlling the engagement or disengagement of the insert block and the slot, realizing the quick assembly and disassembly of the screen plate and the magnet frame, so as to replace the screen plate with different aperture according to different screening particle sizes; since the screw is provided with a screw groove at the upper end, it is convenient for the user to drive the screw to rotate using tools.

[0010] Furthermore, a limiting groove is formed at the wedge-shaped end of the extrusion block, and a limiting block is slidably connected in the limiting groove. One side of the outer wall of the limiting block is fixedly connected to the wedge-shaped end of the insertion block, and the limiting block is located in the limiting groove at one end near the bottom of the connecting cylinder.

[0011] The beneficial effect of adopting the above-mentioned further solution is that the sliding fit of the limiting block in the limiting groove can constrain the movement direction of the insert block, ensuring that the insert block always moves along the axial direction of the through groove; when the extrusion block moves upward, it drives the limiting block to move in the limiting groove and moves to the end of the limiting groove near the top of the connecting cylinder. At this time, the insert block retracts into the sliding groove through the through groove.

[0012] Furthermore, the magnet frame is provided with four through holes, and each of the four through holes is provided with a fixing rod. The outer walls of the four fixing rods are slidably engaged with the inner walls of the four through holes. The bottom ends of the four fixing rods are fixedly connected to the top surface of the frame. Each of the four fixing rods is fitted with a second ring plate on the top surface of the magnet frame, and each of the four fixing rods is slidably connected with a magnet ring plate on the bottom surface of the magnet frame. The magnet ring plates are magnetically connected to the magnet frame.

[0013] The beneficial effect of adopting the above-mentioned further solution is that the sliding fit between the through hole and the fixed rod ensures that the magnet frame can be stably raised and lowered along the fixed rod; since the magnet ring plate is magnetically connected to the magnet frame, and the bottom end of the magnet ring plate is fixedly connected to the spring, one end of the spring is fixedly connected to the first ring plate, and the first ring plate is threadedly connected to the fixed rod, the spring will deform when the magnet frame is raised and lowered.

[0014] Furthermore, each of the four fixing rods is fitted with a first ring plate on the outside of one end near the frame. The inner walls of the first and second ring plates are both threaded. Both ends of the fixing rod are provided with external threads that mesh with the internal threads. The first and second ring plates are threadedly connected to the fixing rod. A spring is fitted on the outside of the fixing rod. The two ends of the spring are fixedly connected to the bottom surface of the magnet ring plate and the top surface of the first ring plate, respectively. A vibrator is installed on one side of the bottom of the magnet frame.

[0015] The beneficial effects of adopting the above-mentioned further solution are as follows: Since the second ring plate is threadedly connected to the fixed rod, it restricts the upward path of the magnet frame. When the magnet frame rises and comes into contact with the second ring plate, it cannot continue to rise, thus preventing the magnet frame from detaching from the fixed rod. When the spring fatigues under prolonged vibration, causing a decrease in its elasticity, the second ring plate can be rotated to remove it from the fixed rod. Then, the magnet frame is pulled upwards to remove it from the fixed rod, separating the magnet frame from the magnet ring plate. Then, the first ring plate is rotated to remove the magnet ring plate, spring, and the entire first ring plate from the fixed rod, allowing for the replacement of the spring and the entire assembly. Through the installation and use of the vibrator, it provides power for the swaying of the magnet frame, working in conjunction with the spring to achieve the vibratory screening of the plastic raw materials.

[0016] Furthermore, the housing assembly includes a bottom shell, a top shell is hinged to one side of the top surface of the bottom shell, and the outer wall of the frame is fixedly connected to the inner wall of the bottom shell.

[0017] The beneficial effect of adopting the above-mentioned further solution is that when the top shell is closed, it can work with the bottom shell to form a closed space, reducing the leakage of dust during the screening process, reducing pollution to the working environment, and protecting the raw materials from external impurities.

[0018] Furthermore, the bottom of the inner shell is inclined, and the height of the bottom of the inner shell decreases continuously from one end to the other. The bottom shell has an opening on the outer wall at the end with the smaller height.

[0019] The beneficial effect of adopting the above-mentioned further solution is that, since the bottom of the inner shell is inclined, the inclined bottom structure can use gravity to guide the qualified raw materials after screening to gather at the opening, which is convenient for centralized collection and avoids the accumulation and residue of raw materials in the bottom shell.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows: This raw material screening device for plastic film processing can achieve precise driving of the extrusion block through the threaded connection between the screw and the extrusion block and the sliding cooperation between the extrusion block and the slide groove; when the screw is rotated, the extrusion block moves axially along the slide groove, and its wedge-shaped end can stably push the insert block to slide along the through groove, thereby controlling the engagement or separation of the insert block and the slot, realizing the quick assembly and disassembly of the screen plate and the magnet frame, so as to replace the screen plate with different aperture according to the different screening particle sizes. Attached Figure Description

[0021] Figure 1 A three-dimensional structural diagram of a raw material screening device for plastic film processing provided by this utility model;

[0022] Figure 2 Exploded three-dimensional structural diagram of the vibration component of a raw material screening device for plastic film processing provided by this utility model. Figure 1 ;

[0023] Figure 3 Exploded three-dimensional structural diagram of the vibration component of a raw material screening device for plastic film processing provided by this utility model. Figure 2 ;

[0024] Figure 4 A three-dimensional unfolded structural diagram of the magnet frame and sieve plate of a raw material screening device for plastic film processing provided by this utility model;

[0025] Figure 5 This is a cross-sectional three-dimensional structural diagram of the connecting cylinder of a raw material screening device for plastic film processing provided by this utility model.

[0026] In the diagram: 1. Shell assembly; 11. Bottom shell; 12. Top shell; 2. Vibration assembly; 21. Square frame; 22. Fixing rod; 23. First ring plate; 24. Spring; 25. Magnet ring plate; 26. Second ring plate; 27. Magnet frame; 28. Screen plate; 29. ​​Vibrator; 3. Assembly / disassembly assembly; 31. Connecting cylinder; 32. Slide groove; 33. Extrusion block; 34. Screw; 35. Insert block. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-5This utility model provides a technical solution: a raw material screening device for plastic film processing, comprising a housing assembly 1, a vibration assembly 2, and a disassembly assembly 3. The vibration assembly 2 includes a square frame 21, with a magnet frame 27 positioned above the square frame 21. A screen plate 28 is located inside the magnet frame 27, with the outer wall of the screen plate 28 fitting against the inner wall of the magnet frame 27. Slots are provided on the inner walls of the magnet frame 27 at its four corners. The disassembly assembly 3 includes four connecting cylinders 31, which are respectively installed on the screen plate 2. 8. The outer walls at the four corners of the connecting cylinder 31 are provided with through grooves. Insert blocks 35 are slidably connected inside the through grooves, with one end of the insert block 35 extending into the slot. A sliding groove 32 is provided inside the connecting cylinder 31, communicating with the through groove. An extrusion block 33 is slidably connected inside the sliding groove 32. One end of the extrusion block 33 has a wedge-shaped structure, and the end of the insert block 35 near the extrusion block 33 also has a wedge-shaped structure. The wedge-shaped end of the extrusion block 33 matches the wedge-shaped end of the insert block 35. The extrusion block 33 has a... A screw hole is provided at the center, and a screw 34 is threaded into the screw hole. Both ends of the screw 34 are rotatably connected to the inner wall of the slide groove 32. The upper end of the screw 34 extends through the connecting cylinder 31 to the outside. A screw groove is provided inside the upper end of the screw 34. A limit groove is provided at the wedge-shaped end of the extrusion block 33. A limit block is slidably connected in the limit groove. One side of the outer wall of the limit block is fixedly connected to the wedge-shaped end of the insert block 35. Because a screw groove is provided at the upper end of the screw 34, it is convenient for the user to drive the screw 34 to rotate using tools. When the screw 34 is rotated clockwise, the extrusion block 33 moves upward along the axial direction of the slide groove 32. The wedge-shaped end of the extrusion block 33 can stably drive the insertion block 35 to slide along the through groove, driving the limiting block to move in the limiting groove and move to the end of the limiting groove near the top of the connecting cylinder 31. At this time, the insertion block 35 retracts into the slide groove 32 through the through groove, thereby controlling the separation of the insertion block 35 from the slot and realizing the quick disassembly of the screen plate 28 and the magnet frame 27, so as to replace the screen plate 28 with different apertures according to different screening particle sizes.

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1-5This utility model provides a technical solution: The magnet frame 27 has four through holes, each with a fixing rod 22 inside. The outer walls of the four fixing rods 22 slide against the inner walls of the four through holes. The bottom ends of the four fixing rods 22 are fixedly connected to the top surface of the frame 21. Each fixing rod 22 has a second ring plate 26 fitted onto its top surface. Each fixing rod 22 has a magnet ring plate 25 slidably connected to its bottom surface. The magnet ring plate 25 is magnetically connected to the magnet frame 27. Each fixing rod 22 has a first ring plate 23 fitted onto its outer surface near the frame 21. The inner walls of the first ring plate 23 and the second ring plate 26 are threaded. Both ends of the fixing rod 22 have external threads that engage with the internal threads. The first ring plate 23 and the second ring plate 26 are threadedly connected to the fixing rod 22. A spring 24 is fitted on the outside of the magnet frame 27. The two ends of the spring 24 are fixedly connected to the bottom surface of the magnet ring plate 25 and the top surface of the first ring plate 23, respectively. A vibrator 29 is installed on one side of the bottom of the magnet frame 27. The vibrator 29 provides power for the shaking of the magnet frame 27. When the magnet frame 27 rises and falls, it causes the spring 24 to deform. The vibrator 29 works with the spring 24 to achieve the vibration screening of the plastic raw material. When the spring 24 becomes fatigued due to long-term vibration, its elasticity decreases. At this time, the second ring plate 26 is rotated to remove it from the fixed rod 22. Then, the magnet frame 27 is pulled upward to remove it from the fixed rod 22. At this time, the magnet frame 27 is separated from the magnet ring plate 25. Then, the first ring plate 23 is rotated to remove the magnet ring plate 25, the spring 24 and the first ring plate 23 as a whole from the fixed rod 22. The spring 24 and the whole assembly are then replaced.

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figures 1-5 This utility model provides a technical solution: the shell assembly 1 includes a bottom shell 11, a top shell 12 is hinged to one side of the top surface of the bottom shell 11, the outer wall of the frame 21 is fixedly connected to the inner wall of the bottom shell 11, the inner bottom end of the bottom shell 11 is inclined, and the height of the inner bottom end of the bottom shell 11 decreases from one end to the other end. The bottom shell 11 has an opening on the outer wall at the end with the smaller height. Since the inner bottom end of the bottom shell 11 is inclined, the inclined bottom end structure can use gravity to guide the qualified raw materials after screening to gather at the opening, which is convenient for centralized collection and avoids the accumulation and residue of raw materials in the bottom shell 11.

[0033] Specifically, the working principle of this raw material screening device for plastic film processing is as follows: During use, the top shell 12 is opened, and the plastic raw material to be screened is poured onto the screen plate 28, then the top shell 12 is closed. The vibrator 29 provides power for the shaking of the magnet frame 27. When the magnet frame 27 rises and falls, it causes the spring 24 to deform. The vibrator 29, in conjunction with the spring 24, achieves the vibratory screening of the plastic raw material. Because the upper end of the screw 34 has a screw groove, it is convenient for the user to drive the screw 34 to rotate using tools. When the screw 34 is rotated clockwise, the extrusion block 33 moves upward axially along the slide groove 32. The wedge-shaped end of the extrusion block 33 can stably drive the insertion block 35 to slide along the through groove, causing the limiting block to move within the limiting groove and to the desired position. The limiting groove is located near the top of the connecting cylinder 31. At this time, the insert block 35 retracts into the sliding groove 32 through the through groove, thereby controlling the separation of the insert block 35 from the slot and realizing the quick disassembly of the screen plate 28 and the magnet frame 27, so as to replace the screen plate 28 with a different aperture according to the different screening particle sizes. If the elasticity of the spring 24 decreases, when replacing the screen plate 28, the second ring plate 26 can be rotated to remove it from the fixing rod 22, and then the magnet frame 27 can be pulled upward to remove it from the fixing rod 22. At this time, the magnet frame 27 is separated from the magnet ring plate 25. Then the first ring plate 23 is rotated to remove the magnet ring plate 25, the spring 24 and the first ring plate 23 as a whole from the fixing rod 22, and the spring 24 and the whole assembly are replaced.

[0034] It should be noted that all standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. Furthermore, since this application is mainly used to protect mechanical devices, the control methods and circuit connections will not be explained in detail in this application.

Claims

1. A raw material screening device for plastic film processing, characterized in that, The assembly includes a housing assembly (1), a vibration assembly (2), and a disassembly assembly (3). The vibration assembly (2) includes a frame (21), a magnet frame (27) is provided above the frame (21), and a sieve plate (28) is provided inside the magnet frame (27). The outer wall of the sieve plate (28) is fitted with the inner wall of the magnet frame (27), and slots are provided on the inner walls of the magnet frame (27) at the four corners. The disassembly assembly (3) includes four connecting cylinders (31), which are respectively installed on the outer walls of the sieve plate (28) at the four corners. The outer wall of the connecting cylinder (31) is provided with a through groove, and an insert (35) is slidably connected inside the through groove. One end of the insert (35) extends into the slot. The inside of the connecting cylinder (31) is provided with a sliding groove (32), which is connected to the through groove. An extrusion block (33) is slidably connected inside the sliding groove (32). One end of the extrusion block (33) is a wedge-shaped structure. The end of the insert (35) near the extrusion block (33) is a wedge-shaped structure. The wedge-shaped end of the extrusion block (33) matches the wedge-shaped end of the insert (35).

2. The raw material screening device for plastic film processing according to claim 1, characterized in that, The extrusion block (33) has a screw hole at its center, and a screw rod (34) is threaded into the screw hole. The two ends of the screw rod (34) are rotatably connected to the inner wall of the slide groove (32). The upper end of the screw rod (34) extends through the connecting cylinder (31) to the outside. A screw groove is provided inside the upper end of the screw rod (34).

3. The raw material screening device for plastic film processing according to claim 2, characterized in that, The wedge-shaped end of the extrusion block (33) has a limiting groove, and a limiting block is slidably connected in the limiting groove. One side of the outer wall of the limiting block is fixedly connected to the wedge-shaped end of the insert block (35).

4. The raw material screening device for plastic film processing according to claim 1, characterized in that, The magnet frame (27) is provided with four through holes, and each of the four through holes is provided with a fixing rod (22). The outer walls of the four fixing rods (22) are slidably engaged with the inner walls of the four through holes. The bottom ends of the four fixing rods (22) are fixedly connected to the top surface of the square frame (21). Each of the four fixing rods (22) is fitted with a second ring plate (26) on the top surface of the magnet frame (27). Each of the four fixing rods (22) is slidably connected with a magnet ring plate (25) on the bottom surface of the magnet frame (27). The magnet ring plate (25) is magnetically connected to the magnet frame (27).

5. The raw material screening device for plastic film processing according to claim 4, characterized in that, Each of the four fixing rods (22) has a first ring plate (23) fitted on the outside of one end near the frame (21). The inner walls of the first ring plate (23) and the second ring plate (26) are provided with internal threads. Both ends of the fixing rod (22) are provided with external threads that mesh with the internal threads. The first ring plate (23) and the second ring plate (26) are threadedly connected to the fixing rod (22). The fixing rod (22) is fitted with a spring (24). The two ends of the spring (24) are fixedly connected to the bottom surface of the magnet ring plate (25) and the top surface of the first ring plate (23), respectively. A vibrator (29) is installed on one side of the bottom end of the magnet frame (27).

6. The raw material screening device for plastic film processing according to claim 1, characterized in that, The housing assembly (1) includes a bottom shell (11), a top shell (12) is hinged to one side of the top surface of the bottom shell (11), and the outer wall of the frame (21) is fixedly connected to the inner wall of the bottom shell (11).

7. The raw material screening device for plastic film processing according to claim 6, characterized in that, The bottom of the bottom shell (11) is inclined, and the height of the bottom of the bottom shell (11) decreases from one end to the other. The bottom shell (11) has an opening on the outer wall at the end with the smaller height.

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