A pressure relief filter mechanism for a vacuum suction cutting bed

Abstract

The utility model relates to a kind of pressure relief filtering mechanism for vacuum suction cutting bed, including shell, air inlet and pressure release port are provided on the side surface of shell in parallel, first filter card frame is equipped at air inlet of shell, second filter card frame is equipped at pressure release port, first filter core is clamped in first filter card frame, sealing plate is slidably connected in the inner wall of shell, the initial position of sealing plate corresponds with pressure release port, the side surface of sealing plate is equipped with first limit rod, first limit rod is passed through the side surface corresponding of shell and extends;The side surface of first filter card frame, away from shell, is equipped with air inlet connector, air outlet is equipped on the side surface of shell opposite to air inlet, and air outlet is equipped with air outlet connector;By sealing plate opening pressure release port, the suction hole negative pressure of table is relieved, and the finished raw material can be taken down, sealing plate is moved to air inlet to block air inlet, and the debris absorbed on first filter core by suction fan falls due to the shielding of sealing plate to wind, to realize the cleaning of first filter core.

Description

Technical Field

[0001] This utility model relates to the field of cutting bed technology, and in particular to a pressure relief and filtration mechanism for a vacuum adsorption cutting bed. Background Technology

[0002] Cutting tables are specifically designed for cutting materials such as leather, artificial leather, fabric, and cardboard. The quality of the cut directly determines the quality of the finished product. During operation, one or more layers of fabric are laid flat on the table, then lines are drawn on the top layer, and cuts are made along the marks. To prevent the fabric from shifting during the cutting process, the table is densely covered with suction holes, and a bottom fan continuously draws air to create negative pressure, firmly holding the fabric to the table. To facilitate the removal of the cut fabric, a pressure relief mechanism is usually installed on the pipe connecting the fan and the table. However, existing pressure relief mechanisms have a single function, only capable of releasing pressure. During the pressure relief process, the debris generated from cutting the fabric is easily sucked into the fan, causing damage to the fan. Utility Model Content

[0003] The purpose of this invention is to provide a pressure relief and filtration mechanism for a vacuum adsorption cutting bed, thereby solving the aforementioned problems in the prior art.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A pressure relief and filtration mechanism for a vacuum adsorption cutting bed includes a housing. An air inlet and a pressure relief port are arranged side by side on one side of the housing. A first filter frame is provided at the air inlet and a second filter frame is provided at the pressure relief port. A first filter element is snapped into the first filter frame. A sealing plate is slidably snapped into the inner wall of the housing. The initial position of the sealing plate corresponds to the pressure relief port. A first limiting rod is provided on the side of the sealing plate. The first limiting rod passes through the corresponding side of the housing and extends out. The first filter card frame has an air inlet on the side opposite to the housing, and an exhaust port is provided on the side of the housing opposite to the air inlet, with an exhaust interface at the exhaust port.

[0005] The beneficial effects of this utility model are as follows: In use, the exhaust port of the pressure relief filter mechanism is connected to the air intake port of the suction fan through a pipeline, and the air inlet is connected to the table surface with densely packed suction holes through a pipeline. The initial position of the sealing plate corresponds to the pressure relief port, thereby sealing the pressure relief port. The raw material to be cut is placed on the corresponding position on the table surface, and the fan is started to generate negative pressure in the suction holes of the table surface, which fixes the raw material to be cut and begins cutting. The first filter element filters out the cutting material debris mixed in the air. After cutting, the processed raw material needs to be removed. By pulling the first limit rod, the sealing plate is moved away from the pressure relief port, the negative pressure in the suction holes of the table surface is released, and the processed raw material can be removed. The sealing plate is moved further. When the sealing plate moves to the air inlet and is located on the side of the first filter element away from the air inlet, the debris adsorbed on the first filter element by the suction fan falls off due to the sealing plate blocking the airflow, thereby cleaning the first filter element.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, the side of the sealing plate is provided with two first limiting rods, which pass through the corresponding side of the housing and extend out. The free ends of the two first limiting rods are provided with L-shaped connecting plates. The housing is provided with a mounting plate at the corresponding L-shaped connecting plate. The mounting plate is provided with a driving mechanism, and the driving end of the driving mechanism is connected to the L-shaped connecting plate.

[0008] Furthermore, the driving mechanism is a rodless cylinder, and the slider of the rodless cylinder is connected to the L-shaped connecting plate.

[0009] Furthermore, a cleaning brush is provided on the side of the first filter element away from the housing, and two second limiting rods are provided on the side of the cleaning brush near the drive mechanism. The second limiting rods pass through the first filter frame and the L-shaped connecting plate and extend outward. Limiting flanges are provided at the free end and near the middle of the second limiting rods. The L-shaped connecting plate is located between the two limiting flanges. The sliding stroke of the L-shaped connecting plate on the second limiting rods is equal to the distance between the side of the sealing plate near the drive mechanism and the side of the cleaning brush near the drive mechanism.

[0010] Furthermore, a debris collection chamber is snapped into the bottom of the first filter card frame, and the debris collection chamber is connected to the bottom of the first filter card frame. Attached Figure Description

[0011] Figure 1 This is a cross-sectional view of the structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of this utility model.

[0012] The attached diagram lists the components represented by each number as follows: 1. Housing; 11. First filter frame; 12. Second filter frame; 13. Air inlet; 14. Exhaust port; 15. Mounting plate; 2. First filter element; 3. Second filter element; 4. Sealing plate; 41. First limiting rod; 42. L-shaped connecting plate; 5. Drive mechanism; 51. Slider; 6. Cleaning brush; 61. Second limiting rod; 62. Limiting flange; 7. Debris collection chamber; 8. Vacuum overflow valve. Detailed Implementation

[0013] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0014] Example 1 like Figure 1 and Figure 2 As shown, a pressure relief and filtration mechanism for a vacuum adsorption cutting bed includes a housing 1. An air inlet and a pressure relief port are arranged side by side on one side of the housing 1. A first filter frame 11 is provided at the air inlet and a second filter frame 12 is provided at the pressure relief port. A first filter element 2 is snapped into the first filter frame 11. A sealing plate 4 is slidably snapped into the inner wall of the housing 1. The initial position of the sealing plate 4 corresponds to the pressure relief port. A first limiting rod 41 is provided on the side of the sealing plate 4. The first limiting rod 41 passes through the corresponding side of the housing 1 and extends out. The first filter card frame 11 has an air inlet 13 on one side away from the housing 1, and an exhaust port is provided on the side of the housing 1 opposite to the air inlet, with an exhaust port 14 at the exhaust port.

[0015] In use, the exhaust port 14 of the pressure relief filter mechanism is connected to the air intake port of the suction fan through a pipeline, and the air intake port 13 is connected to the table surface with dense suction holes through a pipeline. The initial position of the sealing plate 4 corresponds to the pressure relief port, thereby sealing the pressure relief port. The raw material to be cut is placed on the corresponding position on the table surface, and the fan is started to generate negative pressure in the suction holes of the table surface, which fixes the raw material to be cut and begins cutting. The first filter element 2 filters the cutting material debris mixed in the air. After cutting, the processed raw material needs to be removed. By pulling the first limit rod 41, the sealing plate 4 is moved away from the pressure relief port, the negative pressure in the suction holes of the table surface is released, and the processed raw material can be removed. Continue to move the sealing plate 4. When the sealing plate 4 moves to the air intake port and is located on the side of the first filter element 2 away from the air intake port 13, the debris on the first filter element 2 that was adsorbed by the suction fan falls off due to the blocking of the air by the sealing plate 4, thereby cleaning the first filter element 2.

[0016] In the specific implementation, the side walls of the housing 1 and the sealing plate 4 are provided with sliding grooves, and the two sides of the sealing plate 4 are slidably engaged in the sliding grooves; the inner wall of the housing 1 is provided with sealing strips at the edges of the air inlet and the pressure relief port, which can further improve the sealing effect of the mechanism; it also includes a second filter element 3. The second filter element 3 is engaged in the second filter frame 12, and impurities in the air are filtered through the second filter element 3.

[0017] Example 2 This embodiment is a further improvement on embodiment 1, as detailed below: The sealing plate 4 has two first limiting rods 41 on its side. The two first limiting rods 41 pass through the corresponding side of the housing 1 and extend out. The free ends of the two first limiting rods 41 are provided with L-shaped connecting plates 42. The housing 1 is provided with a mounting plate 15 at the location corresponding to the L-shaped connecting plate 42. The mounting plate 15 is provided with a driving mechanism 5. The driving end of the driving mechanism 5 is connected to the L-shaped connecting plate 42. By setting the driving mechanism 5 to drive the movement of the sealing plate 4, the convenience of using the mechanism can be further improved.

[0018] The drive mechanism 5 is a rodless cylinder, and the slider 51 of the rodless cylinder is connected to the L-shaped connecting plate 42. The rodless cylinder can reduce the space occupied by the entire mechanism while ensuring the driving function.

[0019] A cleaning brush 6 is provided on the side of the first filter element 2 away from the housing 1. Two second limiting rods 61 are provided on the side of the cleaning brush 6 near the drive mechanism 5. The second limiting rods 61 pass through the first filter frame 11 and the L-shaped connecting plate 42 and extend outward. The free end and the middle part of the second limiting rods 61 are provided with limiting flanges 62. The L-shaped connecting plate 42 is located between the two limiting flanges 62. The sliding stroke of the L-shaped connecting plate 42 on the second limiting rods 61 is equal to the distance between the side of the sealing plate 4 near the drive mechanism 5 and the side of the cleaning brush 6 near the drive mechanism 5. When the sealing plate 4 and cleaning brush 6 are in their initial positions, the limiting flange 62 near the middle of the second limiting rod 61 contacts the first filter frame 11 on one side and the L-shaped connecting plate 42 on the other side. When pressure relief is required, the drive mechanism 5 moves the L-shaped connecting plate 42 away from the housing 1, and the L-shaped connecting plate 42 slides relative to the second limiting rod 61. At this time, the cleaning brush 6 is stationary. When the L-shaped connecting plate 42 contacts the limiting flange 62 at the free end of the second limiting rod 61, the L-shaped connecting plate 42 passes through the second limiting rod 61. 1. The cleaning brush 6 moves relative to the first filter element 2 to clean the first filter element 2. When the sealing plate 4 moves to the air inlet and is located on the side of the first filter element 2 away from the air interface 13, the debris on the first filter element 2 that was adsorbed by the suction fan falls off due to the obstruction of the airflow by the sealing plate 4, thereby cleaning the first filter element 2. First, the debris adsorbed on the first filter element 2 is loosened by the cleaning brush 6, and then the sealing plate 4 is moved to the air inlet to further improve the cleaning efficiency of the filter element.

[0020] Example 3 This embodiment is a further improvement on any one of embodiments 1 to 3, as detailed below: The bottom of the first filter card frame 11 is fitted with a debris collection chamber 7, which is connected to the bottom of the first filter card frame 11; it can collect the debris brushed off by the cleaning brush 6.

[0021] Example 4 This embodiment is a further improvement on embodiment 3, as detailed below: The top of the housing 1 is equipped with a vacuum overflow valve 8; by setting the vacuum overflow valve 8, the vacuum level can always be kept near the preset standard value.

[0022] 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, improvements, etc., 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 pressure relief and filtration mechanism for a vacuum adsorption cutting bed, characterized in that, The housing (1) includes an air inlet and a pressure relief port arranged side by side on one side of the housing (1). The housing (1) has a first filter frame (11) at the air inlet and a second filter frame (12) at the pressure relief port. A first filter element (2) is snapped into the first filter frame (11). A sealing plate (4) is slidably snapped into the inner wall of the housing (1). The initial position of the sealing plate (4) corresponds to the pressure relief port. A first limiting rod (41) is provided on the side of the sealing plate (4). The first limiting rod (41) passes through the corresponding side of the housing (1) and extends out. The first filter card frame (11) has an air inlet (13) on one side away from the housing (1), and the housing (1) has an exhaust port on one side opposite to the air inlet, and an exhaust port (14) is provided at the exhaust port.

2. The pressure relief and filtration mechanism for a vacuum adsorption cutting bed according to claim 1, characterized in that, The sealing plate (4) has two first limiting rods (41) on its side. The two first limiting rods (41) pass through the corresponding side of the housing (1) and extend out. The free ends of the two first limiting rods (41) are provided with L-shaped connecting plates (42). The housing (1) is provided with a mounting plate (15) corresponding to the L-shaped connecting plate (42). The mounting plate (15) is provided with a driving mechanism (5). The driving end of the driving mechanism (5) is connected to the L-shaped connecting plate (42).

3. The pressure relief and filtration mechanism for a vacuum adsorption cutting bed according to claim 2, characterized in that, The driving mechanism (5) is a rodless cylinder, and the slider (51) of the rodless cylinder is connected to the L-shaped connecting plate (42).

4. The pressure relief and filtration mechanism for a vacuum adsorption cutting bed according to claim 3, characterized in that, The first filter element (2) has a cleaning brush (6) on one side away from the housing (1). The cleaning brush (6) has two second limiting rods (61) on one side near the drive mechanism (5). The second limiting rods (61) pass through the first filter card frame (11) and the L-shaped connecting plate (42) and extend out. The free end and the middle part of the second limiting rod (61) are provided with limiting flanges (62). The L-shaped connecting plate (42) is located between the two limiting flanges (62). The sliding stroke of the L-shaped connecting plate (42) on the second limiting rod (61) is equal to the distance between the side of the sealing plate (4) near the drive mechanism (5) and the side of the cleaning brush (6) near the drive mechanism (5).

5. The pressure relief filter mechanism for a vacuum adsorption cutting bed according to any one of claims 1 to 4, characterized in that, The bottom of the first filter card frame (11) is fitted with a debris collection chamber (7), which is connected to the bottom of the first filter card frame (11).

6. The pressure relief and filtration mechanism for a vacuum adsorption cutting bed according to claim 5, characterized in that, The top of the housing (1) is provided with a vacuum overflow valve (8).

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