Filter spray powder inner cavity shielding sealing device

Abstract

The utility model belongs to filter production and processing technical field provides a kind of filter powder spraying inner cavity shielding sealing device, the filter powder spraying inner cavity shielding sealing device includes tooling bottom plate, is equipped with vertical frame on the tooling bottom plate, is equipped with workbench on the vertical frame, is equipped with several guide pins and several positioning pins on the workbench, the four corners position of the workbench is equipped with elastic conductive mechanism, the elastic conductive mechanism includes slide sleeve, is equipped with conducting rod in the slide sleeve, the top of the conducting rod forms and leads to head, the bottom of slide sleeve is limitedly installed in the below of the conducting rod. The device is replaced by the cooperation of double-layer sealing ring and elastic conductive mechanism, film coating, film tearing and residual glue cleaning process in traditional powder spraying process, without manual prefabricated film coating and subsequent cleaning operation, greatly reduce the manpower investment, significantly improve production efficiency, reduce the labor management cost.

Description

Technical Field

[0001] This utility model belongs to the field of filter manufacturing and processing technology, and in particular relates to a filter powder spraying inner cavity shielding and sealing device. Background Technology

[0002] In the manufacturing process of filters, powder coating is a crucial step in ensuring the filter's appearance quality and protective performance. However, existing powder coating processes require first using a coating machine to protect areas inside the filter that do not require powder coating. Then, a coating outline matching the area is cut along the product's waterproof edge. After the powder coating and curing process is complete, the masking film must be manually removed, and any remaining adhesive must be cleaned. The entire process is cumbersome and time-consuming.

[0003] Furthermore, masking film is a disposable consumable material, and long-term use will lead to high consumable costs, increasing the company's production costs. In addition, the process of applying and removing the film can easily scratch the product surface, and the residual adhesive after removal is difficult to clean completely, which can easily cause quality problems such as residual adhesive and surface damage, affecting the product qualification rate. Utility Model Content

[0004] In view of the above problems, the purpose of this utility model is to provide a filter powder spraying inner cavity shielding and sealing device, which aims to solve the problems of complicated process, high material cost and poor powder spraying quality of the existing filter powder spraying inner cavity shielding and sealing device.

[0005] The present invention adopts the following technical solution:

[0006] The filter powder spraying inner cavity shielding and sealing device includes a tooling base plate, a stand on the tooling base plate, a worktable on the stand, a number of guide pins and a number of positioning pins on the worktable, and elastic conductive mechanisms at the four corners of the worktable. Each elastic conductive mechanism includes a sliding sleeve, a conductive rod inside the sliding sleeve, a guide head at the top of the conductive rod, and a lower limit installation at the bottom of the sliding sleeve. A spring is provided on the conductive rod between the guide head and the sliding sleeve. A lifting mechanism is provided on the tooling base plate facing upwards.

[0007] Furthermore, a threaded section is formed at the bottom of the conductive rod, and a pair of fixing nuts are screwed into the bottom of the conductive rod.

[0008] Furthermore, a pair of air holes are opened inward on both the left and right sides of the workbench, and the ends of the air holes penetrate through the top surface of the workbench. Each air hole is connected to an air pipe connector on the side wall of the workbench.

[0009] Furthermore, the workbench has four stepped grooves, the lifting mechanism includes a lifting cylinder, the drive shaft of the lifting cylinder is provided with a connecting plate, and lifting rods are provided at the four corners of the connecting plate. The top of the lifting rods forms a lifting head, which is located in the stepped groove.

[0010] Furthermore, a sealing groove is formed around the edge of the workbench, and two layers of sealing rings are provided in the sealing groove, wherein the upper sealing ring is a rectangular hollow sealing ring and the lower sealing ring is a circular hollow sealing ring.

[0011] The beneficial effects of this utility model are:

[0012] 1. This device, through the cooperation of a double-layer sealing ring and an elastic conductive mechanism, replaces the coating, film removal, and residual adhesive cleaning processes in the traditional powder coating process. It eliminates the need for manual pre-coating and subsequent cleaning operations, significantly reducing manpower input, greatly improving production efficiency, and lowering labor management costs.

[0013] 2. The lifting mechanism facilitates product loading and unloading, the elastic conductive mechanism automatically ensures close contact between the product and the power supply device, and the air vent blowing protection function automatically prevents powder from entering after powder spraying. The overall operation process is simple and convenient, further improving the level of production automation. Attached Figure Description

[0014] Figure 1 This utility model provides an overall shielding and sealing device for the inner cavity of a filter powder spraying process. Figure 1 .

[0015] Figure 2 This utility model provides an overall shielding and sealing device for the inner cavity of a filter powder spraying process. Figure 2 .

[0016] Figure 3 This utility model provides a cross-sectional view of the filter powder spraying inner cavity shielding and sealing device.

[0017] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0018] Figure 5 This is a schematic diagram of the elastic conductive mechanism provided by this utility model. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model patent clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0020] To illustrate the technical solution described in this utility model, specific embodiments are described below.

[0021] For ease of explanation, only the parts relevant to the embodiments of this utility model are shown.

[0022] Combination Figure 1-2 As shown, the filter powder spraying inner cavity shielding and sealing device includes a tooling base plate 1, a stand 2 on the tooling base plate 1, a worktable 3 on the stand 2, several guide pins 4 and several positioning pins 5 on the worktable 3, and elastic conductive mechanisms at the four corners of the worktable 3. Figure 3-5 The elastic conductive mechanism includes a sliding sleeve 6, a conductive rod 7 inside the sliding sleeve 6, a guide head 8 formed at the top of the conductive rod 7, and a lower limit installation of the conductive rod 7 at the bottom of the sliding sleeve 6. A spring 9 is provided on the conductive rod 7 between the guide head 8 and the sliding sleeve 6, and a lifting mechanism is provided on the tooling base plate 1 facing upward.

[0023] In this embodiment, the inner side of the filter has guide holes and positioning holes facing each guide pin and positioning pin, respectively. During powder spraying, this device can be used to shield and seal the inner cavity of the filter, preventing powder from entering the inner cavity of the filter during the powder spraying process.

[0024] The workbench has a sealing groove 10 along its edge, containing two layers of sealing rings. When using this device to shield and seal the filter's inner cavity, the filter is first placed on the workbench with its inner cavity facing downwards. The guide pins and positioning pins are inserted into the guide holes and positioning holes on the filter to precisely fix it in place. Once the filter is stably placed on the workbench, its own weight ensures a tight seal between the filter's waterproof edge and the upper surface of the double-layer sealing rings.

[0025] like Figure 3 The upper sealing ring is a rectangular hollow sealing ring 101, and the lower sealing ring is a circular hollow sealing ring 102. When the upper surfaces of the double-layer sealing rings on the waterproof edge of the filter are tightly fitted, the rectangular hollow sealing ring mainly ensures the accuracy of the powder spraying trajectory, while the circular hollow sealing ring can be compressed and deformed under the product's own weight, offsetting the flatness difference of the waterproof edge of the product. This ensures that the upper rectangular sealing ring fits tightly with the waterproof edge of the product, achieving effective sealing and shielding of the inner cavity.

[0026] Elastic conductive mechanisms are installed at each of the four corners of the workbench. When the filter is placed stably on the workbench, its own weight causes the conductive rod to move down a short distance within the sliding sleeve, compressing the spring. The guide head at the top of the conductive rod then makes close contact with the filter product under the spring force. An external power supply then supplies power to the product through the conductive rod, causing the filter product to become electrostatically charged. During the powder coating process, the charged filter can evenly adsorb powder, ensuring the quality of the powder coating.

[0027] As a specific structure, the bottom of the conductive rod 7 has a threaded section, and a pair of upper and lower fixing nuts 11 are screwed into the bottom of the conductive rod. In practice, the bottom of the conductive rod is used to install and fix the power supply wire of the external power supply device. After the power supply wire is wound around the threaded section of the conductive rod, the power supply wire is located between the upper and lower fixing nuts, and finally the fixing nuts are tightened to fix the power supply wire.

[0028] In this structure, combined Figure 1-2 The workbench 3 has four stepped grooves 12. The lifting mechanism includes a lifting cylinder 13. The drive shaft of the lifting cylinder 13 is provided with a connecting plate 14. Lifting rods 15 are provided at the four corners of the connecting plate 14. Lifting heads 16 are formed at the top of the lifting rods 15 and are located in the stepped grooves 12.

[0029] In the diagram, the stepped groove includes a shallow groove containing a circular groove, the diameter of which is larger than the diameter of the circular groove. The lifting rods are located within the circular grooves, and the lifting head is located within the shallow grooves. After the filter is powder-coated, it can be lifted by the lifting mechanism. Specifically: the lifting cylinder starts working, pushing the connecting plate upwards, and the four lifting rods also move upwards together until the lifting head lifts the filter. Finally, the worker can remove the filter.

[0030] In addition, a pair of air holes 17 are opened inward on both the left and right sides of the workbench 3. The ends of the air holes penetrate through the top surface of the workbench 3, and each air hole is connected to an air pipe connector 18 on the side wall of the workbench 3. In this embodiment, the air pipe connector is connected to an external air source. When the powder spraying is completed and the filter is lifted, the external air source introduces compressed air into the air holes through the air pipe connector. The compressed air is ejected from the air hole outlet on the top surface of the workbench, blowing air into the inner cavity of the filter during the upward process, effectively preventing external powder from entering the inner cavity.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A filter powder spraying inner cavity shielding and sealing device, characterized in that: The filter powder spraying inner cavity shielding and sealing device includes a tooling base plate, a stand on the tooling base plate, a worktable on the stand, a number of guide pins and a number of positioning pins on the worktable, and elastic conductive mechanisms at the four corners of the worktable. Each elastic conductive mechanism includes a sliding sleeve, a conductive rod inside the sliding sleeve, a guide head at the top of the conductive rod, and a lower limit installation at the bottom of the sliding sleeve. A spring is provided on the conductive rod between the guide head and the sliding sleeve. A lifting mechanism is provided on the tooling base plate facing upwards.

2. The filter powder spraying cavity shielding and sealing device as described in claim 1, characterized in that: The bottom of the conductive rod has a threaded section, and a pair of fixing nuts are screwed into the bottom of the conductive rod.

3. The filter powder spraying cavity shielding and sealing device as described in claim 2, characterized in that: The workbench has a pair of air holes on both its left and right sides, with the ends of the air holes penetrating the top surface of the workbench. Each air hole is connected to an air pipe connector on the side wall of the workbench.

4. The filter powder spraying cavity shielding and sealing device as described in claim 3, characterized in that: The workbench has four stepped slots. The lifting mechanism includes a lifting cylinder. The drive shaft of the lifting cylinder is provided with a connecting plate. Lifting rods are provided at the four corners of the connecting plate. Lifting heads are formed at the top of the lifting rods and are located in the stepped slots.

5. The filter powder spraying cavity shielding and sealing device as described in claim 4, characterized in that: The edge of the workbench has a sealing groove, and the sealing groove is provided with two layers of sealing rings, the upper sealing ring being a rectangular hollow sealing ring and the lower sealing ring being a circular hollow sealing ring.

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