Anti-static structure of tabletting and crushing all-in-one machine

Abstract

The utility model discloses an anti-static structure of a tabletting and crushing all-in-one machine, which relates to the technical field of powder coating production and comprises a conveyor, a coarse crushing roller is mounted on the conveyor, a material receiving box is mounted at the bottom of a discharge end of the conveyor, a bottom plate of the material receiving box is obliquely arranged, and the coarse crushing roller is mounted on the conveyor. A baffle capable of sealing a discharging opening of the material receiving box and an opening and closing mechanism used for opening and closing the baffle are installed on the material receiving box, a material scraping plate is installed at the upper end of the material receiving box, and a static electricity removing unit is installed on the material scraping plate. According to the all-in-one machine, the static electricity removing unit is arranged on the electric scraping plate, static electricity carried on the conveying belt and static electricity generated in the scraping process of the scraping plate can be conducted to the ground through the grounding wire, dust scraping operation is facilitated, new friction static electricity is prevented from being formed, and the service life of the all-in-one machine is prolonged. Meanwhile, the material receiving box with an opening and closing mechanism is further arranged and can serve as a temporary material storage box, and the materials can be prevented from scattering when the material receiving barrel is replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of powder coating production, in particular to an anti-static structure of a tablet pressing and crushing integrated machine. Background Art

[0002] Thermosetting powder coatings are a new type of solvent-free 100% solid powder coating agent, which has the characteristics of pollution-free, recyclable, environmentally friendly, energy and resource saving, labor intensity reduction, and high film mechanical strength. Thermosetting powder coatings refer to coatings that use thermosetting resins as film-forming substances and add curing agents that undergo cross-linking reactions to form insoluble and infusible hard coatings after heating. No matter how high the temperature is, this coating will not soften like a thermoplastic coating, but only decompose. Thermosetting powder coatings include: epoxy resin series, polyester series, and acrylic resin series.

[0003] The processing steps of thermosetting powder coatings are as follows: After weighing and batching, pour the resin, precipitated barium, titanium dioxide, curing agent, leveling agent, and pigment. After all the materials are poured, pre-stirring operations will be carried out in the furnace, and then feeding will start, metering and feeding, pouring into the extruder. The materials in the extruder are melted and mixed, and then tablet pressing, cooling, coarse crushing, grinding the coarse powder into powder, and finally grading and sieving for inspection. The qualified products are packaged and stored in the warehouse waiting for shipment.

[0004] The specific structure of the existing tablet press can refer to the Chinese patent document with the authorized publication number CN217073088U, but there are also some differences. The existing tablet press will set a coarse crushing roller at the discharge tail after air cooling for coarse crushing to save the subsequent crushing and grinding time. The crushed materials can directly fall into the receiving bucket, and this receiving bucket is placed at the material tail end of the conveyor. However, the existing integrated machine has the following problems during use:

[0005] When using the coarse crushing roller to extrude and crush sheet materials, dust will be generated during the crushing process, and this dust will accumulate on the static conveyor belt. Usually, a scraper is set below the conveyor belt to scrape off the dust. Due to the existence of static electricity on the conveyor belt (static electricity generated by the movement friction during the operation of the conveyor belt), the dust scraping effect of the scraper is poor. At the same time, when the scraper contacts and rubs against the conveyor belt, new static electricity will be formed, causing the dust to be re-adsorbed on the part of the conveyor belt after scraping.

[0006] When the receiving bucket is full and needs to be replaced while the integrated machine is running normally, the receiving bucket is quickly pulled out and quickly replaced with an empty receiving bucket. During this replacement of the receiving bucket, it is easy to cause material spillage.

[0007] Therefore, this application provides an anti-static structure of a tablet pressing and crushing integrated machine to meet the requirements. Summary of the Utility Model

[0008] The purpose of this application is to provide a tablet press for powder coating production, which is used to solve the problems of electrostatic dust collection in the existing all-in-one machine and material leakage during barrel replacement.

[0009] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0010] An anti-static structure for a tablet press and crusher all-in-one machine, including a conveyor, on which a coarse crushing roller is installed. At the bottom of the discharge end of the conveyor, a receiving box is installed, and the bottom plate of the receiving box is inclined. A baffle for sealing the discharge opening of the receiving box and an opening and closing mechanism for opening and closing the baffle are installed on the receiving box. A scraping plate is installed at the upper end of the receiving box, and an anti-static unit is installed on the scraping plate.

[0011] Preferably, the anti-static unit includes an insulating plate installed between the receiving box and the scraping plate. An insulating box is installed on the insulating plate. A rotating shaft is rotatably arranged in the inner cavity of the insulating box. A first worm gear and a winding wheel are installed on the rotating shaft. A grounding wire is installed on the winding wheel. One end of the grounding wire penetrates through the winding wheel, then penetrates through the axis of the rotating shaft and is connected to the scraping plate through a conductive slip ring. The first worm gear is meshed and connected with a first worm rod rotatably arranged on the insulating box;

[0012] The opening and closing mechanism includes two rotating rods fixedly arranged at both side ends of the baffle and rotatably connected to the receiving box, and a second worm rod rotatably arranged on the outer wall of the receiving box. The second worm rod is meshed and connected with a second worm gear installed on one of the rotating rods;

[0013] The bottom plate is inclined at an angle of 45° to 60° with the horizontal line.

[0014] Preferably, the lower end of the grounding wire is connected with a conductive weight block.

[0015] Preferably, the lower end surface of the conductive weight block is provided with a contact plane.

[0016] Preferably, the outer surface of the conductive weight block has low pits.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0018] 1. An anti-static unit is arranged on the electrically conductive scraping plate of the all-in-one machine, which can conduct the static electricity already carried on the conveyor belt and the static electricity generated during the scraping process of the scraping plate to the ground through the grounding wire, which is beneficial to the scraping operation of dust, and avoids the formation of new frictional static electricity. At the same time, a receiving box with an opening and closing mechanism is also provided, which can be used as a temporary storage box to prevent the material from spilling when replacing the receiving barrel.

[0019] 2. A conductive weight is provided to ensure that the thin-diameter grounding wire is not blown off the ground by the wind, avoiding affecting its static elimination operation.

[0020] 3. A contact plane is provided on the lower end surface of the conductive weight, which can increase the friction between the conductive weight and the ground, enabling the conductive weight to maintain good stability even with a relatively low self-weight, and effectively preventing the conductive weight from being blown off the ground by the wind.

[0021] 4. There are low-lying pits on the outer surface of the conductive weight. The setting of the low-lying pits can reduce the wind resistance it receives, which is beneficial to ensuring the stability of the conductive weight and making it not easily blown by the wind. Description of the Drawings

[0022] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0023] Figure 2 For the present utility model Figure 1 It is a schematic diagram of the material receiving box and its partial enlargement in the present utility model;

[0024] Figure 3 For the present utility model Figure 2 It is a schematic diagram of the structure of the conductive weight in the present utility model;

[0025] Figure 4 For the present utility model Figure 2 It is a schematic sectional view of the insulating box in the present utility model.

[0026] In the figure: 1. Conveyor; 2. Material receiving box; 21. Baffle; 22. Rotating rod; 23. Second worm gear; 24. Second worm; 3. Insulating plate; 4. Scraping plate; 5. Coarse crushing roller; 6. Static elimination unit; 61. Insulating box; 62. Grounding wire; 63. Conductive slip ring; 64. Conductive weight; 65. First worm; 66. Groove; 67. Contact plane; 68. Winding wheel; 69. First worm gear; 610. Low-lying pit. Detailed Embodiment

[0027] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be given in conjunction with the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0028] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are only for illustrative purposes and do not represent the only implementation.

[0029] Referring to Figures 1-4 , an electrostatic tablet crushing integrated machine, including a conveyor 1, a coarse crushing roller 5 is installed on the conveyor 1, a receiving box 2 is installed at the bottom of the discharge end of the conveyor 1, and the bottom plate of the receiving box 2 is inclined. A baffle 21 for sealing the discharge opening of the receiving box 2 and an opening and closing mechanism for opening and closing the baffle 21 are installed on the receiving box 2. A scraping plate 4 is installed at the upper end of the receiving box 2, and an electrostatic eliminating unit 6 is installed on the scraping plate 4.

[0030] The electrostatic eliminating unit 6 includes an insulating plate 3 installed between the receiving box 2 and the scraping plate 4. An insulating box 61 is installed on the insulating plate 3. A rotating shaft is rotatably arranged in the inner cavity of the insulating box 61. A first worm gear 69 and a winding wheel 68 are installed on the rotating shaft. A grounding wire 62 is installed on the winding wheel 68. One end of the grounding wire 62 passes through the winding wheel 68 and then passes through the axis of the rotating shaft and is connected to the scraping plate 4 through a conductive slip ring 63. The first worm gear 69 is meshed and connected with a first worm 65 rotatably arranged on the insulating box 61. The opening and closing mechanism includes two rotating rods 22 fixedly arranged at both side ends of the baffle 21 and rotatably connected to the receiving box 2, and a second worm 24 rotatably arranged on the outer wall of the receiving box 2. The second worm 24 is meshed and connected with a second worm gear 23 installed on one of the rotating rods 22. The bottom plate is inclined at an angle of 45° to 60° with the horizontal line.

[0031] During use, when the conveyor belt on the conveyor 1 transports the sheet materials falling thereon, the material dust adhering to the conveyor belt can be scraped off by the scraper 4. When the scraper plate 4 and the conveyor belt extrude the scraper, the static electricity on the conveyor belt and the static electricity generated in the process of the scraper plate 4 scraping the material can be conducted to the ground through the grounding wire 62, which is beneficial to the dust scraping operation. The powder material scraped off will enter the receiving box 2 and be transported to the receiving barrel through the inclined bottom plate arranged inside the receiving box. The powder material can be driven by rotating the first worm 65 in cooperation with the first worm gear 69. The winding wheel 68 winds up the grounding wire 62, which is convenient for storing the grounding guide 62 and adjusting the height of the grounding wire 62. The second worm 24 can be rotated to cooperate with the second worm gear 23 to drive the rotating rod 22 to rotate, and finally drive the baffle 21 to rotate, so as to realize the opening and closing operation of the discharge opening of the docking material box 2. When the receiving barrel needs to be replaced, the baffle 21 can be used to seal the processing discharge opening, and a temporary storage space is formed inside the receiving box 2. After the receiving barrel is replaced, the reverse rotating baffle 21 can be opened to realize the unloading operation, which can prevent the material from being scattered when the receiving barrel is replaced.

[0032] The bottom plate is inclined at 45° to 60° with respect to the horizontal line, which is conducive to the material dust rolling down to the lowest point along the inclined surface of the bottom plate. If the angle is too small, it is not conducive to the rolling down of the material dust. If the angle is too large, it is easy for the material dust to move too fast, resulting in a more intense collision with the material receiving box 2 and generating dust.

[0033] It should be noted that the worm and worm gear have a self-locking function.

[0034] like Figure 3 As shown, the lower end of the grounding wire 62 is connected to a conductive weight 64, which is made of conductive material. When in use, the lower end of the conductive weight 64 contacts the ground to ensure that the thin-diameter grounding wire 62 is not blown off the ground by the wind, thereby avoiding affecting its static elimination operation.

[0035] It should be noted that, first, the conductive weight 64 can be in various shapes such as spherical, rectangular, square, etc.; second, because the material after being tableted by the tablet press needs to be air-cooled, the air flow around the machine body is accelerated, so the influence of the flowing airflow on the grounding effect of the grounding wire 62 needs to be considered.

[0036] like Figure 3 As shown, the lower end face of the conductive weight 64 is provided with a contact plane 67. The lower end face is provided with a contact plane, which can enhance the contact area between the conductive weight 64 and the ground, and increase the friction between the conductive weight 64 and the ground, so that the conductive weight 64 can still maintain good stability when its weight is not high, and can effectively prevent the conductive weight 64 from being blown off the ground by the wind.

[0037] As Figure 3 shown, there are depressions 610 on the outer surface of the conductive heavy block 64. The setting of the depressions 610 can reduce the wind resistance it receives, which is beneficial to ensuring the stability of the conductive heavy block 64 and making it not easily blown by the wind.

[0038] It should be noted that the depressions 610 can be set on the outer surfaces of other conductive heavy blocks 64 such as spherical, rectangular, and square shapes, all of which can play a role in reducing wind resistance.

[0039] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, should be covered within the protection scope of the present invention.

Claims

1. An anti-static structure for a tablet crushing integrated machine, including a conveyor (1), on which a coarse crushing roller (5) is installed, characterized in that, A receiving box (2) is installed at the bottom of the discharge end of the conveyor (1), and the bottom plate of the receiving box (2) is inclined. A baffle (21) for sealing the discharge opening of the receiving box (2) and an opening and closing mechanism for opening and closing the baffle (21) are installed on the receiving box (2). A scraping plate (4) is installed at the upper end of the receiving box (2), and an electrostatic eliminating unit (6) is installed on the scraping plate (4).

2. The anti-static structure of a tablet pressing and crushing integrated machine according to claim 1, characterized in that, The electrostatic eliminating unit (6) includes an insulating plate (3) installed between the receiving box (2) and the scraping plate (4). An insulating box (61) is installed on the insulating plate (3). A rotating shaft is rotatably arranged in the inner cavity of the insulating box (61). A first worm gear (69) and a winding wheel (68) are installed on the rotating shaft. A grounding wire (62) is installed on the winding wheel (68). One end of the grounding wire (62) penetrates through the winding wheel (68), then penetrates through the axis of the rotating shaft, and is connected to the scraping plate (4) through a conductive slip ring (63). The first worm gear (69) is meshed and connected with a first worm (65) rotatably arranged on the insulating box (61). The opening and closing mechanism includes two rotating rods (22) fixedly arranged at both side ends of the baffle (21) and rotatably connected to the receiving box (2), and a second worm (24) rotatably arranged on the outer wall of the receiving box (2). The second worm (24) is meshed and connected with a second worm gear (23) installed on one of the rotating rods (22). The bottom plate is inclined at an angle of 45° to 60° with the horizontal line.

3. The anti-static structure of a tablet pressing and crushing integrated machine according to claim 2, characterized in that, The lower end of the grounding wire (62) is connected with a conductive weight (64).

4. The anti-static structure of a tablet pressing and crushing integrated machine according to claim 3, characterized in that A contact plane (67) is arranged on the lower end surface of the conductive weight (64).

5. The anti-static structure of a tablet pressing and crushing integrated machine according to claim 3, wherein, The outer surface of the conductive weight (64) is densely covered with low pits (66).

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