A filter paper folding device

Abstract

The utility model discloses a kind of filter paper bending with unwinding device for filter, including support frame: the left and right sides of the support frame are uniformly connected with support groove by bolt fixing, the inner chamber of two The support groove is slidably connected with rack, the left side of the support frame is fixedly connected with L-shaped support by bolt, the inner chamber of L-shaped support is rotatably connected with round bar, the right end of the round bar is penetrated to the right side of support frame, the surface of the left and right ends of the round bar is fixedly connected with gear, the surface of the gear is engaged with rack, the top of L-shaped support is provided with limiting structure, the utility model is rotated rocker lever drives round bar to rotate, in turn drive gear to rack to slide upwards, and make driven roller to filter paper to be jacked up, simultaneously the effect of limiting structure makes rack and driven roller keep the state of filter paper tight, i.

Description

Technical Field

[0001] This utility model belongs to the field of filter technology, and in particular relates to an unwinding device for bending filter paper in a filter. Background Technology

[0002] Filter paper in an air filter can effectively filter harmful impurities in the air that is about to enter the cylinder, reducing premature wear of engine parts. Filter paper in an oil filter can filter harmful impurities in the oil in the oil pan, providing clean oil for the moving parts of the engine.

[0003] Before being put into use, filter paper in a filter press needs to be unwound and folded. Folding increases the surface area of ​​the filter paper, thereby improving filtration efficiency. To ensure the filter paper is tightly supported during unwinding and to prevent uneven folding due to slack, a filter paper unwinding device has been designed. This device uses gears and racks to lift the driven roller and tightly support the filter paper on its surface. Simultaneously, a limiting structure keeps the filter paper in a tightly supported state, thus preventing uneven folding due to slack. Utility Model Content

[0004] The purpose of this invention is to provide an unwinding device for bending filter paper in a filter, which avoids uneven bending spacing of the filter paper due to slackness, thereby solving the aforementioned technical problems.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A filter paper bending unwinding device for a filter includes a support frame: both sides of the support frame are fixedly connected to support grooves by bolts, and the inner cavities of the two support grooves are slidably connected to racks. An L-shaped bracket is fixedly connected to the left side of the support frame by bolts. A round rod is rotatably connected to the inner cavity of the L-shaped bracket. The right end of the round rod extends through to the right side of the support frame. Gears are fixedly connected to the surfaces of both ends of the round rod. The surfaces of the gears mesh with the racks. A limiting structure is provided at the top of the L-shaped bracket. The limiting structure includes a pressure plate rotatably connected to the rear side of the top of the L-shaped bracket. A spring plate is fixedly connected to the front side of the top of the L-shaped bracket. A ratchet is fixedly connected to the surface of the left end of the round rod.

[0006] Preferably, the front end of the pressure plate is fitted into the surface of the ratchet, the rear side of the spring sheet is pressed into the surface of the pressure plate, and a rocker arm is fixedly connected to the left end of the round rod.

[0007] Preferably, each rack has a support head fixedly connected to its top, and a driven roller is rotatably connected between the two support heads. Limiting strips are fixedly connected to both the left and right sides of the rack.

[0008] Preferably, limit grooves are provided on both the left and right sides of the inner wall of the support groove, the surface of the limit strip is slidably connected to the inner cavity of the limit groove, and a spring support plate is fixedly connected to the bottom of the inner cavity of the support groove.

[0009] Preferably, the rack is placed on top of the spring support plate, and a limiting roller is rotatably connected to the top of the support frame. The limiting roller is located in front of the driven roller and is positioned higher than the driven roller.

[0010] Preferably, a perforated support plate is slidably connected to the left side of the support frame, and an unwinding roller is rotatably connected between the perforated support plate and the rear side of the inner cavity of the support frame.

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

[0012] 1. This utility model uses a rocker arm to drive a round rod to rotate, which in turn drives a gear to slide the rack upward and causes the driven roller to lift the filter paper. At the same time, the limiting structure keeps the rack and driven roller firmly supporting the filter paper, thus avoiding uneven bending spacing of the filter paper due to looseness.

[0013] 2. By setting a limiting strip, this utility model can keep the rack parallel to the ground as it slides in the inner cavity of the support groove, making the support of the rack and the support head on the driven roller more stable.

[0014] 3. By setting up a spring support plate, this utility model can provide auxiliary support for the rack, enabling the rack to obtain an additional support force before it slides. Attached Figure Description

[0015] in:

[0016] Figure 1 This is a left-side view of one embodiment of the present invention;

[0017] Figure 2 This is a right-side view of one embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the support groove and L-shaped bracket according to one embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of a limiting structure according to an embodiment of the present invention;

[0020] Figure 5 This is a schematic cross-sectional view of the support groove according to an embodiment of the present invention.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1. Support frame, 2. Support groove, 3. Rack, 4. L-shaped bracket, 5. Round rod, 6. Gear, 7. Limiting structure, 71. Pressure plate, 72. Spring plate, 73. Ratchet, 8. Rocker arm, 9. Support head, 10. Driven roller, 11. Limiting strip, 12. Spring support plate, 13. Limiting roller, 14. Perforated support plate, 15. Unwinding roller. Detailed Implementation

[0023] In the following description, embodiments of the filter paper bending unwinding device of the present invention will be described with reference to the accompanying drawings.

[0024] Example 1:

[0025] Figures 1-5 This invention illustrates an embodiment of a filter paper bending and unwinding device for an air filter, comprising: a support frame 1; support grooves 2 are bolted to both sides of the support frame 1, and racks 3 are slidably connected to the inner cavities of both support grooves 2; an L-shaped bracket 4 is bolted to the left side of the support frame 1, and a round rod 5 is rotatably connected to the inner cavity of the L-shaped bracket 4; the right end of the round rod 5 extends through to the right side of the support frame 1; gears 6 are fixedly connected to the surfaces of both ends of the round rod 5, and the surfaces of the gears 6 mesh with the racks 3; a limiting structure 7 is provided at the top of the L-shaped bracket 4, the limiting structure 7 including a pressure plate 71 rotatably connected to the rear side of the top of the L-shaped bracket 4; and the L-shaped bracket 4... A spring plate 72 is fixedly connected to the front side of the top, a ratchet 73 is fixedly connected to the surface of the left end of the round rod 5, the front end of the pressure plate 71 is fitted into the surface of the ratchet 73, the rear side of the spring plate 72 is pressed into the surface of the pressure plate 71, a rocker arm 8 is fixedly connected to the left end of the round rod 5, a support head 9 is fixedly connected to the top of each of the two racks 3, a driven roller 10 is rotatably connected between the two support heads 9, and limit strips 11 are fixedly connected to both the left and right sides of the rack 3. By setting the limit strips 11, the rack 3 can be kept parallel to rise during the sliding process in the inner cavity of the support groove 2, which can make the support of the rack 3 and the support head 9 on the driven roller 10 more stable.

[0026] Example 2:

[0027] Figures 1-5This invention illustrates an embodiment of a filter paper bending and unwinding device for an air filter, comprising: a support frame 1; support grooves 2 are bolted to both sides of the support frame 1, and racks 3 are slidably connected to the inner cavities of both support grooves 2; an L-shaped bracket 4 is bolted to the left side of the support frame 1, and a round rod 5 is rotatably connected to the inner cavity of the L-shaped bracket 4; the right end of the round rod 5 extends through to the right side of the support frame 1; gears 6 are fixedly connected to the surfaces of both ends of the round rod 5, and the surfaces of the gears 6 mesh with the racks 3; a limiting structure 7 is provided at the top of the L-shaped bracket 4, the limiting structure 7 including a pressure plate 71 rotatably connected to the rear side of the top of the L-shaped bracket 4; a spring plate 72 is fixedly connected to the front side of the top of the L-shaped bracket 4; and the surface of the round rod 5 is... A ratchet 73 is fixedly connected to the support groove 2. Limiting grooves are opened on both the left and right sides of the inner wall of the support groove 2. The surface of the limiting strip 11 is slidably connected to the inner cavity of the limiting groove. A spring support plate 12 is fixedly connected to the bottom of the inner cavity of the support groove 2. The setting of the spring support plate 12 can provide auxiliary support for the rack 3, so that the rack 3 can get an additional support force before sliding. The rack 3 is placed on the top of the spring support plate 12. The top of the support frame 1 is rotatably connected to the limiting roller 13. The limiting roller 13 is located in front of the driven roller 10. The position of the limiting roller 13 is higher than that of the driven roller 10. A perforated support plate 14 is slidably connected to the left side of the support frame 1. An unwinding roller 15 is rotatably connected between the perforated support plate 14 and the rear side of the inner cavity of the support frame 1.

[0028] Working principle: When using this utility model, the user rotates the rocker arm 8 to drive the round rod 5 to rotate, which in turn drives the two gears 6 to rotate and pushes the rack 3. This causes the rack 3 to slide upward and drive the driven roller 10 to lift the unwound filter paper, so that the filter paper is tightly supported. At the same time, the round rod 5 drives the ratchet 73 to rotate during rotation. Under the action of the pressure plate 71 and the spring plate 72, the ratchet 73 and the round rod 5 are restricted, thereby preventing the round rod 5 from reversing. This keeps the rack 3 and the driven roller 10 in a tightly supporting state for the filter paper, thus avoiding the situation where the filter paper is loose and the bending spacing of the filter paper is uneven.

[0029] In summary, the filter paper bending unwinding device of this filter uses a rocker arm 8 to rotate a round rod 5, which in turn drives a gear 6 to slide the rack 3 upwards and causes the driven roller 10 to lift the filter paper. At the same time, the limiting structure 7 keeps the rack 3 and the driven roller 10 in a tight supporting state on the filter paper, thus avoiding uneven bending spacing of the filter paper due to slack.

Claims

1. A filter paper unwinding device for bending filter paper, characterized in that, The support frame (1) is provided with a support groove (2) fixedly connected to both the left and right sides of the support frame (1) by bolts. The inner cavity of the two support grooves (2) is slidably connected with a rack (3). The left side of the support frame (1) is fixedly connected with an L-shaped bracket (4) by bolts. The inner cavity of the L-shaped bracket (4) is rotatably connected with a round rod (5). The right end of the round rod (5) extends through to the right side of the support frame (1). The surfaces of the left and right ends of the round rod (5) are fixedly connected with gears (6). The surfaces of the gears (6) mesh with the rack (3). The top of the L-shaped bracket (4) is provided with a limiting structure (7). The limiting structure (7) includes a pressure plate (71) rotatably connected to the rear side of the top of the L-shaped bracket (4). The front side of the top of the L-shaped bracket (4) is fixedly connected with a spring plate (72). The surface of the left end of the round rod (5) is fixedly connected with a ratchet (73).

2. The filter paper unwinding device for bending filter paper according to claim 1, characterized in that, The front end of the pressure plate (71) is fitted onto the surface of the ratchet (73), the rear side of the spring plate (72) is pressed against the surface of the pressure plate (71), and the left end of the round rod (5) is fixedly connected to the rocker arm (8).

3. The filter paper unwinding device for bending filter paper according to claim 2, characterized in that, The top of each of the two racks (3) is fixedly connected to a support head (9), and the two support heads (9) are rotatably connected to a driven roller (10). Limiting strips (11) are fixedly connected to both the left and right sides of the racks (3).

4. The filter paper bending unwinding device for a filter according to claim 3, characterized in that, Limiting grooves are provided on both the left and right sides of the inner wall of the support groove (2). The surface of the limiting strip (11) is slidably connected to the inner cavity of the limiting groove. A spring support plate (12) is fixedly connected to the bottom of the inner cavity of the support groove (2).

5. The filter paper unwinding device for bending filter paper according to claim 4, characterized in that, The rack (3) is placed on top of the spring support plate (12), and the top of the support frame (1) is rotatably connected to a limiting roller (13). The limiting roller (13) is located in front of the driven roller (10), and the position of the limiting roller (13) is higher than that of the driven roller (10).

6. The filter paper unwinding device for bending filter paper according to claim 5, characterized in that, A perforated support plate (14) is slidably connected to the left side of the support frame (1), and an unwinding roller (15) is rotatably connected between the perforated support plate (14) and the rear side of the inner cavity of the support frame (1).

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