Screening device for raw materials of high-cold-resistance and strong-toughening PP (Polypropylene) plate

Abstract

The utility model discloses a high cold-resistant strong toughened PP plate raw material screening device, and relates to the technical field of PP plate raw material screening, the high cold-resistant strong toughened PP plate raw material screening device comprises a screening box, the upper end of the screening box is provided with a feeding hole, a feeding frame is fixedly installed at the position of an upper end hole opening of the feeding hole, and fixing mechanisms are symmetrically arranged on the inner side of the feeding frame; the feeding frame is connected with a raw material box in a clamped mode through a fixing mechanism, a feeding hopper is arranged on the outer side of the raw material box, and a discharging mechanism is arranged on the inner side of the raw material box. By the adoption of the structure, the output end of the driving motor is used for driving the driving rod to rotate, firstly, the stirring rod on the outer side of the driving rod can stir raw materials in the raw material box, discharging is convenient, and meanwhile the lower end of the driving rod is connected with the disc with the second discharging hole; and after the disc rotates, the second discharging holes are overlapped with the first discharging holes in the bottom of the raw material box, and then one-time discharging can be carried out, so that intermittent discharging can be conveniently carried out on the PP plate raw materials, and screening of the raw materials is greatly facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of PP plate material screening, in particular to a high cold-resistant and toughened PP plate material screening device. Background Art

[0002] Conventional PP sheets in severe cold type and low temperature environment are prone to brittle fracture under the harsh cold external conditions in the north, and have poor environmental adaptability. It is necessary to develop and improve the toughness of the sheets to enhance their cold resistance and adapt to the severe cold weather in the north. High-toughness cold-resistant PP sheets and their manufacturing processes. The prepared PP sheets have the advantages of existing PP sheets and also have high toughness and cold resistance, which prolongs their service life to a certain extent and enables them to be used in extreme environments, thus increasing their scope of use. The preparation process of high-toughness cold-resistant P sheets forms an efficient production process of high-toughness cold-resistant PP sheets. Polypropylene, low-density polyethylene, toughening agent and glass fiber are mixed with quaternary ammonium salt cationic surfactants, isopropyl alcohol, butanone, ethyl acetate, octadecyl imidazoline and alkyl quaternary ammonium salts to generate antistatic agents, so as to improve the toughness and cold resistance of the products. The prepared PP sheets have enhanced high toughness and cold resistance, and the sheets are not easy to break and are resistant to extremely cold temperatures.

[0003] A Chinese patent with publication number CN115025970A discloses a raw material screening device for the production of PP composite particles, including a screening shell and a touch input panel, wherein the touch input panel is installed at the outer end of the screening shell, and the touch input panel is used to input the particle size range of the target raw material. Two support plates are fixedly provided in the screening shell, and a screening control component is installed at the center of the top surface of the support plate. The two screening control components are arranged with a gap fit. The screening shell is provided with a discharge port, and the discharge port is connected to an electric discharge gate valve through a pipeline.

[0004] The PP sheet raw material screening device in the above-mentioned prior art still has some shortcomings in actual use and operation. Since the raw materials of the traditional screening device are directly put in through the feed port for screening, and intermittent feeding is not possible, if too much is put in at one time, it will cause blockage, and if too little is put in, the screening efficiency of the raw materials will be reduced. Utility Model Content

[0005] In view of the problems mentioned in the background technology, the purpose of the utility model is to provide a high cold-resistant and strong toughened PP board raw material screening device to solve the problems mentioned in the above background technology.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A high cold-resistant and strong toughened PP board raw material screening device, comprising a screening box, a feed hole is opened at the upper end of the screening box, a feed frame is fixedly installed at the upper end of the feed hole, a fixing mechanism is symmetrically arranged on the inner side of the feed frame, the feed frame is clamped with a raw material box through the fixing mechanism, a feed hopper is arranged on the outer side of the raw material box, a discharge mechanism is arranged on the inner side of the raw material box, and a vibrating screen is arranged on the inner side of the screening box;

[0008] The discharging mechanism comprises a first discharging hole, the first discharging hole is arranged at the inner bottom of the raw material box, a driving motor is fixedly installed on the upper end of the box cover of the raw material box, a driving rod is fixedly installed on the output end of the driving motor which passes through the box cover of the raw material box, a disc is fixedly installed on the end of the driving rod away from the driving motor, the lower end of the disc is rotatably connected to the inner side of the raw material box, a second discharging hole is arranged on the inner side of the disc, a stirring rod is fixedly installed on the outer side of the driving rod, and the raw materials in the raw material box can be conveniently discharged intermittently through the discharging mechanism;

[0009] The fixing mechanism comprises an installation cavity, which is symmetrically arranged on the inner side of the feed frame, and the inner side of the installation cavity is slidably connected to a limit plate, a clamping block is symmetrically fixedly installed on one side of the limit plate, and the clamping end of the clamping block passes through the inner wall of the installation cavity and is clamped with the raw material box, and a pull rod is symmetrically fixedly connected to the side of the limit plate away from the clamping block, and a first spring is sleeved on the side of the pull rod close to the limit plate, and one end of the pull rod away from the first spring slides through the inner wall of the installation cavity and is fixedly connected to the same pull handle, and the raw material box with the discharge mechanism can be conveniently disassembled and maintained through the fixing mechanism;

[0010] The vibrating screen includes a rectangular hole, which is opened on the inner side of the screening box, a mounting seat is fixedly installed on the inner side of the screening box, a second spring is symmetrically fixedly installed on the upper end of the mounting seat, the upper end of the second spring is fixedly connected to the same mesh frame, one end of the mesh frame away from the second spring extends out of the rectangular hole, a third spring is fixedly installed between the end of the mesh frame away from the second spring and the opposite side of the rectangular hole, a vibration motor is provided at the lower end of the mesh frame, and the screening effect of raw material particles can be greatly improved through the vibrating screen.

[0011] As a preferred technical solution, the outer side of the raw material box is symmetrically provided with card slots, the card-in end of the card block is card-connected with the card slot, the upper end surface of the card-in end of the card block is inclined, and the inner side of the installation cavity is symmetrically fixed with a slide groove, and the end of the limit plate is slidably connected to the inner side of the slide groove, and the card block can be conveniently carded to the raw material box through the card slot.

[0012] As a preferred technical solution, an observation window is provided on the outer side of the raw material box, and the shape of the observation window is rectangular. The raw material box can be conveniently observed through the observation window.

[0013] As a preferred technical solution, a collecting hopper is fixedly installed on the inner side of the screening box, a placing seat is fixedly installed on the outer side of the screening box, a collecting box is inserted into the inner side of the placing seat, and the box opening of the collecting box is arranged below one end of the mesh frame. The raw materials can be concentrated for the second time through the collecting hopper on the screening box.

[0014] In summary, the utility model mainly has the following beneficial effects:

[0015] First, the output end of the driving motor is used to drive the driving rod to rotate. First, the stirring rod outside the driving rod can stir the raw materials in the raw material box to facilitate unloading. At the same time, the lower end of the driving rod is connected to a disc with a second discharge hole. When the disc rotates, the second discharge hole overlaps with the first discharge hole at the bottom of the raw material box and can be discharged once, so that the intermittent unloading of PP board raw materials can be convenient, which greatly facilitates the selection of raw materials.

[0016] Second, insert the raw material box into the feed frame. During the insertion process, the lower end of the raw material box contacts the inclined surface of the block on the feed frame and is squeezed along the inclined surface of the block, so that the limit plate connected to the block slides in the installation cavity and compresses the first spring. When the raw material box is inserted into the feed frame, the first spring resets and pushes the block connected to the limit plate into the slot to fix it. When disassembling, use the pull handles on both sides of the feed frame to pull the pull rod at the same time, so that the limit plate connected to the pull rod can drive the block to separate from the raw material box. At this time, the raw material box can be conveniently removed to perform maintenance operations on the discharge mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is an exploded view of the utility model;

[0019] Figure 3 It is a schematic diagram of the connection between the feed frame and the raw material box of the utility model;

[0020] Figure 4 The utility model Figure 3 Enlarged view of point A in the middle.

[0021] Figure numerals: 1. screening box; 2. placement seat; 3. collection box; 4. feed frame; 5. fixing mechanism; 501. block; 502. limit plate; 503. pull rod; 504. pull handle; 505. first spring; 506. installation cavity; 6. raw material box; 7. feed hopper; 8. discharge mechanism; 801. first discharge hole; 802. drive motor; 803. drive rod; 804. disc; 805. second discharge hole; 806. stirring rod; 9. slot; 10. feed hole; 11. vibrating screen; 111. mounting seat; 112. second spring; 113. vibrating motor; 114. mesh frame; 115. rectangular hole; 116. third spring; 12. collecting hopper; 13. observation window; 14. slideway. DETAILED DESCRIPTION

[0022] refer to Figures 1 to 4 The high cold-resistant and strong toughened PP board raw material screening device described in this embodiment includes a screening box 1, a feed hole 10 is opened at the upper end of the screening box 1, a feed frame 4 is fixedly installed at the upper end of the feed hole 10, a fixing mechanism 5 is symmetrically provided on the inner side of the feed frame 4, a raw material box 6 is clamped on the feed frame 4 through the fixing mechanism 5, a feed hopper 7 is provided on the outer side of the raw material box 6, a discharge mechanism 8 is provided on the inner side of the raw material box 6, and a vibrating screen 11 is provided on the inner side of the screening box 1;

[0023] The discharge mechanism 8 includes a first discharge hole 801, which is provided at the inner bottom of the raw material box 6. A driving motor 802 is fixedly installed on the upper end of the box cover of the raw material box 6. A driving rod 803 is fixedly installed on the output end of the driving motor 802 passing through the box cover of the raw material box 6. A disc 804 is fixedly installed on the end of the driving rod 803 away from the driving motor 802. The lower end of the disc 804 is rotatably connected to the inner side of the raw material box 6. A second discharge hole 805 is provided on the inner side of the disc 804. A stirring rod 806 is fixedly installed on the outer side of the driving rod 803. After the raw material box 6 is filled with the feed hopper 7, when the raw materials need to be screened, the output end of the driving motor 802 is used to drive the driving rod 803 to rotate. First, the stirring rod 806 on the outer side of the driving rod 803 can The raw materials in the raw material box 6 are stirred to facilitate unloading. At the same time, the lower end of the driving rod 803 is connected to the disc 804 with the second unloading hole 805. When the disc 804 rotates, the second unloading hole 805 overlaps with the first unloading hole 801 at the bottom of the raw material box 6, and then unloading can be performed once, so that the intermittent unloading of the PP board raw materials can be convenient, and thus the screening of the raw materials is greatly facilitated; the lower end of the disc 804 is also provided with a rotating groove, and the rotating groove is inserted into the raw material box 6, so that the disc 804 can rotate more stably in the raw material box 6, and the disc 804 is fitted with the inner bottom of the raw material box 6, and the upper end of the disc 804 is in a concave bucket shape, and the bucket bottom extends to the second unloading hole 805, which can avoid the residue inside the raw material box 6 after the raw materials are discharged;

[0024] The fixing mechanism 5 includes an installation cavity 506, which is symmetrically arranged on the inner side of the feed frame 4. The inner side of the installation cavity 506 is slidably connected to the limiting plate 502. A clamping block 501 is symmetrically fixedly installed on one side of the limiting plate 502. The clamping end of the clamping block 501 penetrates the inner wall of the installation cavity 506 and is clamped with the raw material box 6. A pull rod 503 is symmetrically fixedly connected to the side of the limiting plate 502 away from the clamping block 501. A first spring 505 is sleeved on the side of the pull rod 503 close to the limiting plate 502. One end of the pull rod 503 away from the first spring 505 slides through the inner wall of the installation cavity 506 and is fixedly connected to the same pull handle 504. When the raw material box 6 is installed, the raw material box 6 is inserted into the feed frame 4. Frame 4, during the insertion process, the lower end of the raw material box 6 contacts the inclined surface of the block 501 on the feed frame 4 and is squeezed along the inclined surface of the block 501, so that the limit plate 502 connected to the block 501 slides in the installation cavity 506 to compress the first spring 505. When the raw material box 6 is inserted into the feed frame 4, the first spring 505 resets and pushes the block 501 connected to the limit plate 502 to be fixed in the card slot 9. When disassembling, the pull handles 504 on both sides of the feed frame 4 are used to pull the pull rod 503 at the same time, so that the limit plate 502 connected to the pull rod 503 can drive the block 501 to separate from the raw material box 6. At this time, the raw material box 6 can be conveniently removed to perform maintenance operations on the discharge mechanism 8.

[0025] The vibrating screen 11 includes a rectangular hole 115, which is opened on the inner side of the screening box 1. A mounting seat 111 is fixedly installed on the inner side of the screening box 1. A second spring 112 is symmetrically fixedly installed on the upper end of the mounting seat 111. The upper end of the second spring 112 is fixedly connected to the same mesh frame 114. One end of the mesh frame 114 away from the second spring 112 extends out of the rectangular hole 115. A third spring 116 is fixedly installed between one end of the mesh frame 114 away from the second spring 112 and the opposite side of the rectangular hole 115. The lower end of the mesh frame 114 is fixedly connected to the second spring 112. A vibration motor 113 is provided, and a third spring 116 is installed between one side of the lower end of the mesh screen frame 114 and the rectangular hole 115 by tilting, and a second spring 112 is installed between the other side and the mounting seat 111. With the cooperation of the vibration motor 113, the mesh screen frame 114 can vibrate and filter the raw materials, thereby greatly improving the screening efficiency of the raw materials; the caliber density of the mesh screen frame 114 in the upper middle half of the screening box 1 is greater than the caliber density of the mesh screen frame 114 in the lower half, thereby realizing the screening of raw materials with different particle sizes.

[0026] refer to Figure 2The outer side of the raw material box 6 is symmetrically provided with a card slot 9, the card-in end of the card block 501 is card-engaged with the card slot 9, the upper end surface of the card-in end of the card block 501 is in the shape of an inclined surface, and the inner side of the installation cavity 506 is symmetrically fixed with a slide groove 14, and the end of the limiting plate 502 is slidably connected to the inner side of the slide groove 14. By card-engaging the card block 501 and the card slot 9 of the raw material box 6, the raw material box 6 can be conveniently card-engaged and fixed on the feed frame 4, and the slide groove 14 in the installation cavity 506 can facilitate the sliding of the limiting plate 502 in the installation cavity 506.

[0027] refer to Figure 2 An observation window 13 is provided on the outer side of the raw material box 6. The shape of the observation window 13 is rectangular. The observation window 13 on the raw material box 6 can be used to conveniently observe the raw material box 6.

[0028] refer to Figure 2 A collecting hopper 12 is fixedly installed on the inner side of the screening box 1, a placing seat 2 is fixedly installed on the outer side of the screening box 1, a collecting box 3 is plugged into the inner side of the placing seat 2, and the box mouth of the collecting box 3 is arranged below one end of the mesh frame 114. By using the collecting hopper 12 on the screening box 1, the raw materials falling from the mesh frame 114 in the upper half of the screening box 1 can be conveniently concentrated and discharged into the mesh frame 114 in the lower half of the screening box 1 for re-screening, and the collecting box 3 positioned and plugged on the placing seat 2 can be collected according to the screened raw materials, and a collecting drawer is also provided at the bottom of the inner side of the screening box 1.

[0029] Principle and advantages of use: During use, after the raw material box 6 is filled with the feed hopper 7, when the raw materials need to be screened, the output end of the drive motor 802 is used to drive the drive rod 803 to rotate. First, the stirring rod 806 on the outside of the drive rod 803 can stir the raw materials in the raw material box 6 to facilitate material discharge. At the same time, the lower end of the drive rod 803 is connected to a disc 804 with a second discharge hole 805. After the second discharge hole 805 of the disc 804 overlaps with the first discharge hole 801 at the bottom of the raw material box 6 after rotation, a discharge can be performed. After the raw materials enter the screening box 1 through the feed hole 10, raw materials of different sizes can be screened through two vibrating screens 11.

[0030] When installing the raw material box 6, the raw material box 6 is inserted into the feed frame 4. During the insertion process, the lower end of the raw material box 6 contacts the inclined surface of the block 501 on the feed frame 4 and is squeezed along the inclined surface of the block 501, so that the limit plate 502 connected to the block 501 slides in the installation cavity 506 and compresses the first spring 505. When the raw material box 6 is inserted into the feed frame 4, the first spring 505 resets and pushes the block 501 connected to the limit plate 502 to be fixed in the slot 9. When disassembling, use the pull handles 504 on both sides of the feed frame 4 to pull the pull rod 503 at the same time, so that the limit plate 502 connected to the pull rod 503 can drive the block 501 to separate from the raw material box 6. At this time, the raw material box 6 can be conveniently removed to perform maintenance operations on the discharge mechanism 8.

Claims

1. A high cold-resistant and strong toughened PP board raw material screening device, comprising a screening box (1), characterized in that: The upper end of the screening box (1) is provided with a feed hole (10), a feed frame (4) is fixedly installed at the upper end opening of the feed hole (10), a fixing mechanism (5) is symmetrically provided on the inner side of the feed frame (4), the feed frame (4) is connected to a raw material box (6) through the fixing mechanism (5), a feed hopper (7) is provided on the outer side of the raw material box (6), a discharge mechanism (8) is provided on the inner side of the raw material box (6), and a vibrating screen (11) is provided on the inner side of the screening box (1); The discharge mechanism (8) comprises a first discharge hole (801), the first discharge hole (801) is provided at the inner bottom of the raw material box (6), a driving motor (802) is fixedly mounted on the upper end of the box cover of the raw material box (6), a driving rod (803) is fixedly mounted on the output end of the driving motor (802) passing through the box cover of the raw material box (6), a disc (804) is fixedly mounted on one end of the driving rod (803) away from the driving motor (802), the lower end of the disc (804) is rotatably connected to the inner side of the raw material box (6), a second discharge hole (805) is provided on the inner side of the disc (804), and a stirring rod (806) is fixedly mounted on the outer side of the driving rod (803).

2. The high cold-resistant and strong toughened PP board raw material screening device according to claim 1 is characterized by: The fixing mechanism (5) comprises an installation cavity (506), wherein the installation cavity (506) is symmetrically opened on the inner side of the feed frame (4), and the inner side of the installation cavity (506) is slidably connected to a limiting plate (502), and a clamping block (501) is symmetrically fixedly installed on one side of the limiting plate (502), and the clamping end of the clamping block (501) penetrates the inner wall of the installation cavity (506) and is clamped with the raw material box (6), and a pull rod (503) is symmetrically fixedly connected on the side of the limiting plate (502) away from the clamping block (501), and a first spring (505) is sleeved on the side of the pull rod (503) close to the limiting plate (502), and one end of the pull rod (503) away from the first spring (505) slides through the inner wall of the installation cavity (506) and is fixedly connected with the same pull handle (504).

3. The high cold-resistant and strong toughened PP board raw material screening device according to claim 2 is characterized by: A card slot (9) is symmetrically provided on the outer side of the raw material box (6), the card-in end of the card block (501) is card-engaged with the card slot (9), and the upper end surface of the card-in end of the card block (501) is in the shape of an inclined plane.

4. The high cold-resistant and strong toughened PP board raw material screening device according to claim 2 is characterized by: A slide groove (14) is symmetrically fixedly installed on the inner side of the installation cavity (506), and the end of the limit plate (502) is slidably connected to the inner side of the slide groove (14).

5. The high cold-resistant and strong toughened PP board raw material screening device according to claim 1 is characterized by: An observation window (13) is provided on the outer side of the raw material box (6), and the shape of the observation window (13) is rectangular.

6. The high cold-resistant and strong toughened PP board raw material screening device according to claim 1 is characterized by: The vibrating screen (11) comprises a rectangular hole (115), wherein the rectangular hole (115) is opened on the inner side of the screening box (1), a mounting seat (111) is fixedly installed on the inner side of the screening box (1), a second spring (112) is symmetrically fixedly installed on the upper end of the mounting seat (111), the upper end of the second spring (112) is fixedly connected to the same mesh frame (114), one end of the mesh frame (114) away from the second spring (112) extends out of the rectangular hole (115), a third spring (116) is fixedly installed between one end of the mesh frame (114) away from the second spring (112) and the opposite side of the rectangular hole (115), and a vibration motor (113) is provided at the lower end of the mesh frame (114).

7. The high cold-resistant and strong toughened PP board raw material screening device according to claim 6 is characterized by: A collecting hopper (12) is fixedly mounted on the inner side of the screening box (1), a placement seat (2) is fixedly mounted on the outer side of the screening box (1), a collecting box (3) is plugged into the inner side of the placement seat (2), and a box opening of the collecting box (3) is arranged below one end of the mesh screen frame (114).

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