A vacuum-formed dustproof feeding device

Abstract

This utility model discloses a dustproof feeding device for vacuum forming, relating to the field of vacuum forming machine feeding technology. It includes a base plate, a dust collection box, a filter box, and an exhaust pipe. Both ends of the exhaust pipe are fixedly connected to the dust collection box and the filter box, respectively. A vacuum fan is installed at the end of the filter box away from the dust collection box, and an exhaust port is provided at the end of the filter box located at the end of the vacuum fan. The filter box is equipped with a cleaning mechanism for non-stop cleaning of collected dust. This utility model, through its cleaning mechanism, can gently remove dust from the upper and lower surfaces of the vacuum forming film, avoiding damage to the film and ensuring its quality before forming. Simultaneously, through preliminary and secondary filtration, it not only prevents the filter mesh from becoming clogged, effectively ensuring continuous filtration, but also allows for non-stop dust collection, enabling efficient and continuous dust removal operations, thereby further improving the convenience of dust collection and processing.

Description

Technical Field

[0001] This utility model relates to the field of material supply technology for vacuum forming machines, specifically a dustproof material supply device for vacuum forming. Background Technology

[0002] Vacuum forming machine, also known as vacuum thermoforming machine, is a plastic processing equipment that uses vacuum adsorption and thermoforming technology to soften plastic sheets, then uses the vacuum adsorption principle to make them adhere to the mold surface, and finally forms the shape after cooling. It features high forming efficiency, wide range of applicable plastic sheets, low mold cost and convenient mold replacement, and controllable forming precision.

[0003] A dustproof feeding structure for a blister packaging machine, as described in patent CN222116024U, includes a base. A mounting frame is fixedly mounted on the top of the base. Fixed posts are fixedly mounted on the upper side wall of the mounting frame and the top of the base. A dust suction hood is fixedly mounted at the end of each fixed post. Limiting components are provided on both the left and right sides of the dust suction hood. A drive motor is fixedly mounted on the front of the dust suction hood. The output end of the drive motor extends through the dust suction hood into its interior and is fixedly mounted with a soft brush roller. The arrangement of the mounting frame, fixed posts, dust suction hood, drive motor, soft brush roller, dust outlet hood, dust outlet pipe, dust collection box, baffle net, and suction fan facilitates the removal of dust from the blister film entering the blister packaging machine, preventing dust from entering the machine along with the film. This gives the feeding structure of the blister packaging machine a dustproof function, eliminating the need to replace the dust removal structure and preventing production disruptions caused by machine shutdowns.

[0004] The aforementioned patent, during use, can block the collected dust through a barrier net, allowing the dust to fall inside the dust collection box for convenient collection. However, during use, the collected dust easily accumulates on the surface of the barrier net under the suction of the vacuum fan, causing blockage of the mesh and weakening the vacuum fan's adsorption capacity. This results in a significant decrease in dust removal efficiency over time, necessitating periodic shutdown for disassembly and cleaning of the barrier net. Based on this, a vacuum-formed dustproof feeding device is now provided, which can eliminate the drawbacks of the existing device. Utility Model Content

[0005] The purpose of this invention is to provide a dustproof feeding device for vacuum forming, so as to solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A vacuum forming dustproof feeding device includes a base plate, a dust collection box installed at the top of the base plate, a filter box installed at one end of the dust collection box, two suction pipes symmetrically arranged at one end of the base plate, the two suction pipes being located at the upper and lower ends of the filter box respectively, the two ends of the suction pipes being fixedly connected to the dust collection box and the filter box respectively, a vacuum fan installed at the end of the filter box away from the dust collection box, an exhaust port being opened at the end of the filter box located at the end of the vacuum fan, and a cleaning mechanism for cleaning the collected dust without stopping the machine is provided on the filter box.

[0008] The cleaning facility includes:

[0009] The filter cylinder is installed inside the filter box. Two support sleeves are symmetrically rotated and fitted on the outer wall of the filter cylinder. Both support sleeves are fixedly connected to the filter box. The ports of the two air extraction pipes are located between the two support sleeves.

[0010] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0011] In one alternative embodiment, the cleaning mechanism further includes:

[0012] Guide components installed on the filter box;

[0013] The guiding component includes:

[0014] Two guide frames are symmetrically fixed to the outer wall of the filter box, and the filter box has a dust discharge port at the port of each of the two guide frames;

[0015] The filter cylinder is equipped with a cleaning component for removing dust from the filter cylinder;

[0016] The guide frame is equipped with a collection component for collecting dust.

[0017] The dust collection box is equipped with a cleaning component for removing dust and driving the filter cylinder to rotate.

[0018] In one alternative embodiment, the clearing component includes:

[0019] Two exhaust pipes are symmetrically arranged inside the filter cylinder. Multiple jet nozzles are installed horizontally at equal intervals on the outer wall of the side of the two exhaust pipes closest to the filter cylinder. A gas supply steel pipe is fixedly connected to the outer wall of the two exhaust pipes. The gas supply steel pipe extends to the bottom of the filter box and is fixedly connected to the filter box. The end of the gas supply steel pipe away from the exhaust pipe is fixedly connected to the output end of the air pump.

[0020] In one alternative embodiment, the collection component includes:

[0021] A dust collection box is set below the guide frame. The outer wall of the dust collection box has two symmetrical discharge ports. The inner walls of the two discharge ports are equipped with filter screens. A docking frame is fixedly connected to the top of the dust collection box. A limiting slot for sliding the docking frame is provided at the junction of the guide frame and the docking frame. A sealing gasket is fixedly connected to the top of the docking frame.

[0022] The docking frame is equipped with a locking component.

[0023] In one alternative embodiment, the locking component includes:

[0024] A connecting baffle is fixedly connected to the end of the docking frame away from the dust collector box. The connecting baffle contacts the outer wall of one end of the guide frame. A knurled bolt is provided at the end of the connecting baffle away from the guide frame. The knurled bolt passes through the connecting baffle to the interior of the guide frame and is threadedly connected to the guide frame.

[0025] In one alternative embodiment, the cleaning component includes:

[0026] Two cleaning rollers are symmetrically rotatably connected inside the dust collector. Two gears are symmetrically arranged at the end of the dust collector away from the filter box. The two gears mesh with each other and are fixedly connected to the end shafts of the two cleaning rollers respectively. A drive motor is installed at one end of the dust collector and is located above the filter box. One of the cleaning rollers is driven by the output end of the drive motor. The filter screen is fixedly connected to the end shaft of the other cleaning roller.

[0027] In one alternative: two second guide components are symmetrically installed on the outer wall of the dust collector, and the dust collector is provided with a feeding port between the two second guide components.

[0028] In one alternative: the top of the base plate is longitudinally and equidistantly equipped with an unwinding assembly and a first guide assembly, the first guide assembly being located on one side of the dust collection box, and the unwinding assembly being located on the side of the first guide assembly away from the dust collection box.

[0029] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0030] This invention uses a cleaning mechanism to gently remove dust from the upper and lower surfaces of the blister film, preventing damage and ensuring its quality before molding. Simultaneously, through preliminary and secondary filtration, it not only prevents filter mesh blockage and ensures continuous filtration, but also allows for continuous dust collection without shutting down the machine. This enables efficient and continuous dust removal operations, further improving the convenience of dust collection and processing. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of this utility model.

[0032] Figure 2 This is a schematic diagram of the internal structure of the dust collector box of this utility model.

[0033] Figure 3 This is a schematic diagram of the internal structure of the filter box of this utility model.

[0034] Figure 4 This is a schematic diagram of the connection structure between the filter screen cylinder and the cleaning roller of this utility model.

[0035] Figure 5 For the present utility model Figure 3 A magnified schematic diagram of the structure at point A in the diagram.

[0036] Figure reference numerals: 1. Base plate; 201. Support sleeve plate; 202. Connecting frame; 203. Filter cylinder; 204. Dust collection box; 205. Connecting baffle; 206. Knurled bolt; 207. Exhaust pipe; 208. Guide frame; 209. Air supply pipe; 2010. Gear; 2011. Cleaning roller; 2012. Drive motor; 3. Unwinding assembly; 4. First guide assembly; 5. Dust collection box; 6. Second guide assembly; 7. Exhaust pipe; 8. Filter box; 9. Dust extraction fan. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0038] In one embodiment, such as Figures 1-5 As shown, a vacuum forming dustproof feeding device includes a base plate 1, a dust collection box 5 installed at the top of the base plate 1, a filter box 8 installed at one end of the dust collection box 5, two exhaust pipes 7 symmetrically arranged at one end of the base plate 1, the two exhaust pipes 7 being located at the upper and lower ends of the filter box 8 respectively, and the two ends of the exhaust pipes 7 being fixedly connected to the dust collection box 5 and the filter box 8 respectively, a dust suction fan 9 installed at the end of the filter box 8 away from the dust collection box 5, and an exhaust port opened at the end of the filter box 8 at the end of the dust suction fan 9, two second guide components 6 symmetrically installed on the outer wall of the dust collection box 5, and a feeding port opened between the two second guide components 6, an unwinding component 3 and a first guide component 4 are longitudinally and equidistantly installed at the top of the base plate 1, the first guide component 4 being located on one side of the dust collection box 5, and the unwinding component 3 being located on the side of the first guide component 4 away from the dust collection box 5, and a cleaning mechanism for cleaning the collected dust without stopping the machine is provided on the filter box 8;

[0039] The cleaning mechanism includes: a filter cylinder 203 installed inside the filter box 8, two support sleeves 201 symmetrically rotated and sleeved on the outer wall of the filter cylinder 203, both support sleeves 201 are fixedly connected to the filter box 8, and the ports of the two air extraction pipes 7 are located between the two support sleeves 201.

[0040] In this embodiment, during use, the unwinding assembly 3 unwinds the blister film, and at the same time, the blister film enters the inner cavity of the dust collection box 5 through one feeding port. Then, the blister film is guided to the subsequent equipment through another feeding port. During this process, the first guiding assembly 4 and the second guiding assembly 6 can guide and limit the conveyed blister film.

[0041] During the conveying of the blister film, the cleaning mechanism can remove the dust attached to the surface of the blister film and avoid damage to the surface of the blister film. At the same time, the vacuum fan 9 is activated to draw air. At this time, through the two air extraction pipes 7, the air in the dust removal box 5 can be drawn into the inner cavity of the filter box 8. At the same time, the dust in the air is filtered through the filter screen 203, so that the dust that has been removed can be initially filtered and collected. At this time, through the gas spray on the cleaning mechanism, the dust accumulated on the outer wall of the filter screen 203 can be removed, filtered, collected and stored.

[0042] When dust needs to be collected and processed, the air pump is stopped, and the collected dust can be easily processed by the cleaning mechanism. Then, the above operation is reversed to achieve the purpose of dust removal on the surface of the blister film without stopping the machine.

[0043] In one embodiment, such as Figures 1-5 As shown, the cleaning mechanism also includes a guide assembly disposed on the filter box 8;

[0044] The guiding assembly includes two guide frames 208 that are symmetrically fixedly connected to the outer wall of the filter box 8, and the filter box 8 has a dust discharge port at the port of each of the two guide frames 208.

[0045] The filter cylinder 203 is equipped with a cleaning component for removing dust from the filter cylinder 203;

[0046] The guide frame 208 is equipped with a collection component for collecting dust;

[0047] The dust collection box 5 is equipped with a cleaning component for removing dust and driving the filter cylinder 203 to rotate;

[0048] The cleaning assembly includes: two exhaust pipes 207 symmetrically arranged inside the filter cylinder 203; multiple jet nozzles are installed horizontally at equal intervals on the outer wall of the side of the two exhaust pipes 207 near the filter cylinder 203; and air supply steel pipes 209 are fixedly connected to the outer walls of the two exhaust pipes 207. The air supply steel pipes 209 extend to the bottom of the filter box 8 and are fixedly connected to the filter box 8. The end of the air supply steel pipes 209 away from the exhaust pipes 207 is fixedly connected to the output end of the air pump.

[0049] The collection component includes: a dust collection box 204 located below the guide frame 208, with two symmetrical discharge ports on the outer wall of the dust collection box 204, and filters installed on the inner walls of both discharge ports. A docking frame 202 is fixedly connected to the top of the dust collection box 204. A limiting slot for sliding the docking frame 202 is provided at the junction of the guide frame 208 and the docking frame 202. A sealing gasket is fixedly connected to the top of the docking frame 202. Through the cooperation of the guide component, the cleaning component, and the collection component, the dust adsorbed on the filter cylinder 203 can be removed by the injection of gas, and the removed dust can be guided into the dust collection box 204 through the dust discharge port and the guide frame 208, thereby facilitating the filtration and storage of dust.

[0050] A locking component is provided on the docking frame 202;

[0051] In one embodiment, such as Figures 2-5 As shown, the locking assembly includes: a connecting baffle 205 fixedly connected to the end of the docking frame 202 away from the dust collection box 5, the connecting baffle 205 contacting the outer wall of one end of the guide frame 208, and a knurled bolt 206 provided at the end of the connecting baffle 205 away from the guide frame 208, the knurled bolt 206 penetrating the connecting baffle 205 to the interior of the guide frame 208, and the knurled bolt 206 being threadedly connected to the guide frame 208. Through the mutual cooperation of the connecting baffle 205 and the knurled bolt 206, the docking frame 202 can be locked and fixed.

[0052] In one embodiment, such as Figures 1-4 As shown, the cleaning assembly includes two cleaning rollers 2011 symmetrically rotatably connected inside the dust collection box 5. Two gears 2010 are symmetrically arranged at the end of the dust collection box 5 away from the filter box 8. The two gears 2010 mesh with each other and are fixedly connected to the end shafts of the two cleaning rollers 2011 respectively. A drive motor 2012 is installed at one end of the dust collection box 5 and is located above the filter box 8. One cleaning roller 2011 is driven by the output end of the drive motor 2012. The filter cylinder 203 is fixedly connected to the end shaft of the other cleaning roller 2011. Through the mutual cooperation of the cleaning rollers 2011 and the gears 2010, the dust attached to the upper and lower surfaces of the blister film can be stably removed, and rotational power is provided to the filter cylinder 203.

[0053] The above embodiments disclose a dustproof feeding device for thermoforming. In use, the thermoforming film is unwound by the unwinding assembly 3, and the thermoforming film enters the inner cavity of the dust collection box 5 through one feeding port. Then, the thermoforming film is guided to the subsequent equipment through another feeding port. During this process, the conveyed thermoforming film can be guided and limited by the first guiding assembly 4 and the second guiding assembly 6.

[0054] During the conveying process of the blister film, the drive motor 2012 is started to drive a cleaning roller 2011 to rotate. At this time, a gear 2010, driven by the cleaning roller 2011, drives another gear 2010 to rotate through meshing. At the same time, the other cleaning roller 2011, driven by the other gear 2010, drives the filter cylinder 203 to rotate through the rotating shaft. At this time, the dust attached to the surface of the blister film can be removed by the slow rotation of the two cleaning rollers 2011, and the damage to the surface of the blister film can be avoided.

[0055] At the same time, the vacuum fan 9 is turned on to draw air from the inner cavity of the filter cylinder 203. At this time, the air in the inner cavity of the filter box 8 can be drawn into the inner cavity of the filter cylinder 203 through the air flow. Meanwhile, the air in the inner cavity of the dust removal box 5 is transported to the inner cavity of the filter box 8 through two air extraction pipes 7. At this time, the dust in the air can be filtered through the filter cylinder 203, so that the dust to be removed can be initially filtered and collected.

[0056] At this time, the air pump is started to supply air to the inner cavity of the exhaust pipe 207 through the air supply steel pipe 209. At the same time, the exhaust pipe 207 can spray air onto the inner wall of the filter cylinder 203 during rotation through multiple air jets. At this time, the dust accumulated on the outer wall of the filter cylinder 203 can be removed by the air jet and discharged into the inner cavity of the guide frame 208 through the dust discharge port. At the same time, the guide frame 208 can guide the removed dust into the inner cavity of the dust collection box 204 through the inner wall. At this time, the air in the inner cavity of the dust collection box 204 can be transported out through the two discharge ports. At the same time, the dust in the air can be filtered through the filter screen, so that the dust can be conveniently collected and stored.

[0057] When centralized dust removal is required, stop the air pump from supplying gas, then rotate the knurled bolt 206 to separate it from the guide frame 208, thereby releasing the compression lock on the connecting baffle 205. Then, pull the docking frame 202 to move along the inner wall of the limiting slot, so that the collected dust can be easily processed. Then, reverse the above operation to achieve the purpose of dust removal on the surface of the blister film without stopping the machine.

[0058] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A vacuum forming dustproof feeding device, comprising a base plate (1), a dust collection box (5) installed at the top of the base plate (1), a filter box (8) installed at one end of the dust collection box (5), two suction pipes (7) symmetrically arranged at one end of the base plate (1), the two suction pipes (7) being located at the upper and lower ends of the filter box (8) respectively, the two ends of the suction pipes (7) being fixedly connected to the dust collection box (5) and the filter box (8) respectively, a vacuum fan (9) being installed at the end of the filter box (8) away from the dust collection box (5), and an exhaust port being opened at the end of the filter box (8) located at the end of the vacuum fan (9), characterized in that, The filter box (8) is equipped with a cleaning mechanism for cleaning the collected dust without stopping the machine; The cleaning mechanism includes: a filter cylinder (203) disposed inside the filter box (8), the outer wall of the filter cylinder (203) is symmetrically rotated and sleeved with two support sleeves (201), both of the support sleeves (201) are fixedly connected to the filter box (8), and the ports of the two air extraction pipes (7) are located between the two support sleeves (201).

2. The dustproof feeding device for vacuum forming according to claim 1, characterized in that, The cleaning mechanism also includes: a guide assembly disposed on the filter box (8); The guiding assembly includes two guide frames (208) symmetrically fixedly connected to the outer wall of the filter box (8), and the filter box (8) is provided with a dust discharge port at the port of the two guide frames (208); The filter cylinder (203) is provided with a cleaning component for removing dust from the filter cylinder (203); The guide frame (208) is provided with a collection component for collecting dust; The dust collection box (5) is equipped with a cleaning component for removing dust and driving the filter cylinder (203) to rotate.

3. The dustproof feeding device for vacuum forming according to claim 2, characterized in that, The cleaning assembly includes two exhaust pipes (207) symmetrically arranged inside the filter cylinder (203). Multiple jet nozzles are installed horizontally at equal intervals on the outer wall of the two exhaust pipes (207) near the filter cylinder (203). A gas supply steel pipe (209) is fixedly connected to the outer wall of the two exhaust pipes (207). The gas supply steel pipe (209) extends to the bottom outside of the filter box (8). The gas supply steel pipe (209) is fixedly connected to the filter box (8). The end of the gas supply steel pipe (209) away from the exhaust pipe (207) is fixedly connected to the output end of the air pump.

4. The dustproof feeding device for vacuum forming according to claim 2, characterized in that, The collection assembly includes: a dust collection box (204) disposed below the guide frame (208), the outer wall of the dust collection box (204) having two symmetrically arranged discharge ports, the inner walls of the two discharge ports being equipped with filter screens, the top of the dust collection box (204) being fixedly connected to a docking frame (202), the guide frame (208) and the docking frame (202) being connected to a limiting slot for sliding of the docking frame (202), and the top of the docking frame (202) being fixedly connected to a sealing gasket; The docking frame (202) is provided with a locking component.

5. A dustproof feeding device for vacuum forming according to claim 4, characterized in that, The locking assembly includes: a connecting baffle (205) fixedly connected to the end of the docking frame (202) away from the dust collection box (5), the connecting baffle (205) being in contact with the outer wall of one end of the guide frame (208), a knurled bolt (206) being provided at the end of the connecting baffle (205) away from the guide frame (208), the knurled bolt (206) penetrating the connecting baffle (205) to the interior of the guide frame (208), and the knurled bolt (206) being threadedly connected to the guide frame (208).

6. A dustproof feeding device for vacuum forming according to claim 2, characterized in that, The cleaning assembly includes two cleaning rollers (2011) symmetrically rotatably connected inside the dust collector (5). Two gears (2010) are symmetrically arranged at one end of the dust collector (5) away from the filter box (8). The two gears (2010) mesh with each other and are fixedly connected to the end shafts of the two cleaning rollers (2011) respectively. A drive motor (2012) is installed at one end of the dust collector (5). The drive motor (2012) is located above the filter box (8). One of the cleaning rollers (2011) is driven by the output end of the drive motor (2012). The filter cylinder (203) is fixedly connected to the end shaft of the other cleaning roller (2011).

7. The dustproof feeding device for vacuum forming according to claim 1, characterized in that, Two second guide components (6) are symmetrically installed on the outer wall of the dust collector (5), and the dust collector (5) is provided with a feeding port between the two second guide components (6).

8. A dustproof feeding device for vacuum forming according to claim 1, characterized in that, The bottom plate (1) is longitudinally and equidistantly equipped with an unwinding assembly (3) and a first guide assembly (4). The first guide assembly (4) is located on one side of the dust collection box (5), and the unwinding assembly (3) is located on the side of the first guide assembly (4) away from the dust collection box (5).

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