Edge cutting treatment equipment for net woven bag

Abstract

The invention discloses net woven bag edge cutting treatment equipment which comprises two sets of opposite frame plates, the two sets of frame plates can relatively slide and extrude, the opposite sides of the two sets of frame plates are provided with a cutting part, the cutting part comprises a plurality of cutting frames, the multiple cutting frames are arranged in two opposite sets and are fixed to the frame plates on the two sides correspondingly, and the cutting frames are arranged on the two sides of the frame plates correspondingly. The cutting frame on the outermost side is used for limiting the woven bags, and the cutting frame in the middle is used for cutting the woven bags; an edge sealing part is further arranged on one side of the cutting part. According to the woven bag cutting device, the edge of a woven bag is cut, clamping rods at the edge part extrude each other, the woven bag is clamped through cooperation of a notch and a protruding layer, the woven bag is accurately cut, and a notch is relatively attractive; the multiple cutting frames can cut the woven bags into multiple broken woven bags, the woven bags are in a fragment shape, leftover materials can be collected more easily, and the state that the woven bags are broken and connected with one another is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of woven bag manufacturing, in particular to a device for cutting and processing the edge of a mesh woven bag. Background Art

[0002] The production process of woven bags includes cutting, printing, sewing and other links, among which cutting is an important step. Through cutting, the size and shape of the fabric required for the woven bag can be obtained, which provides a basis for subsequent processes such as printing and sewing. Reasonable cutting process can ensure the accuracy of the size and shape of the woven bag, thereby ensuring the stability and safety of the woven bag during packaging and transportation. In addition, during the cutting process, the woven bag can also be edge-sealed to improve its firmness and durability. In the production process of woven bags, if the cutting work cannot be completed in a timely and accurate manner, it may lead to material waste.

[0003] There are other problems with net-woven woven bags. For example, if the edges are not sealed, the edges will become loose, and even the entire woven bag will become loose. The woven bags must be sealed after cutting. The heating method is used, which is easy to produce smoke and damage the woven bags. At the same time, the edge sealing of the cut woven bags is a two-step operation. The woven bags need to be transported from the cutting equipment to the edge sealing equipment, which makes the woven bags move, and the operation is easy to make the cut parts of the woven bags scattered. Most woven bags are made of plastic, and the cut woven bags can also be recycled. Summary of the invention

[0004] The object of the present invention is to provide a mesh woven bag edge cutting and processing device to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a mesh woven bag edge cutting and processing device, comprising two sets of opposite racks, the two sets of racks can slide and squeeze relative to each other, and the two sets of racks have a cutting part on one side opposite to each other, and the cutting part comprises:

[0006] A plurality of cutting frames, wherein the plurality of cutting frames are arranged in two opposite groups and are respectively fixed to the frame plates on both sides, the outermost cutting frames are used to limit the woven bag, and the cutting frames in the middle part are used to cut the woven bag;

[0007] A side of the cutting portion is also provided with an edge sealing portion, and the edge sealing portion is used to seal the position where the woven bag is cut, and the edge sealing portion includes:

[0008] Two groups of clamping boxes, the two groups of clamping boxes are respectively arranged on two groups of frame plates opposite to each other, and the inside of the clamping boxes contains glue for adhering the woven bags;

[0009] The triangle plate is located at the upper end of the clamping box and is used to control the clamping box to float up and down for smearing;

[0010] The supporting assembly is connected to the frame plate and is used to support the clamping box.

[0011] Furthermore, sliding blocks are fixed to the upper ends of the two groups of shelf plates, and driving covers are also provided at the upper ends of the two groups of shelf plates. The driving covers clamp the two groups of sliding blocks, and a cylinder is fixed to the inner side of the driving cover, and its pushing end is against the outer side of the shelf plate.

[0012] Furthermore, the cutting frame includes a longitudinal rod and a blade, the longitudinal rod is fixed on the inner side of the frame plate, and the blade is fixed on the inner side of the longitudinal rod. The blades on both sides are fitted and the blade surfaces are inclined.

[0013] Furthermore, the outermost longitudinal rod is also fixed on the inner side of the frame plate, and a telescopic rod is fixed on the inner side of the longitudinal rod, and clamping rods that are squeezed against each other are fixed to the ends of the telescopic rods on both sides for clamping the woven bag.

[0014] Furthermore, the end face of the clamping rod on one side is arranged as a recess, and the end face of the clamping rod on the other side is arranged as a protruding layer. Before the woven bag is clamped, the end face of the protruding layer contacts the end face of the clamping rod on the opposite side, and during clamping, the protruding layer cooperates with the recess.

[0015] Furthermore, the telescopic rod is a sleeve and a sleeve rod sleeve connection, and the sleeve has a supporting spring inside.

[0016] Furthermore, the triangle plate is fixed at the lower end of the driving cover, and a longitudinal sliding opening is provided on the outer side of the frame plate. The longitudinal sliding opening is used to limit the support assembly. The upper end of the support assembly is against the triangle plate, and up and down movement is achieved when moving.

[0017] Furthermore, a guide frame is fixed on the inner side of the frame plate, and the support assembly includes a connecting rod, a sliding sheet, a support spring, a sliding block, a longitudinal spring body and a longitudinal axis;

[0018] The connecting rod is transversely passed through the longitudinal sliding opening and the guide frame and is fixed to the clamping box, the sliding piece is sleeved on the connecting rod and is fixed to the frame plate, the end of the connecting rod is circular, and the support spring is fixed to the end of the connecting rod, the sliding piece is fixed to the end of the support spring, the support spring is used to support the outer side of the frame plate, and the frame plate stretches the support spring when it moves;

[0019] The slider is arranged in the guide frame, and the connecting rod passes through the slider. The longitudinal spring body is supported at the lower end of the slider. The longitudinal shaft is fixed at the upper end of the slider. The upper end of the longitudinal shaft abuts against the triangular plate.

[0020] Furthermore, the longitudinal axis is provided with an opening for clamping the triangle plate, and the inner wall of the longitudinal axis opening is also provided with a circular end, and the circular end is used to contact the outer side of the triangle plate.

[0021] Furthermore, the interior of the clamping box is hollow for containing glue, a barrier layer is fixed on the outside of the clamping box, the barrier layer is integrally provided with a U-shaped inner layer, a connection port connected to the clamping box is also provided on the inner wall of the inner layer, a coating shaft embedded outside the barrier layer is rotatably provided inside the barrier layer, a plurality of adsorption ports extending along the axis thereof are provided on the outer wall of the coating shaft, a rubber layer that can fluctuate is adhered to the adsorption port, and a magnetic substance is provided inside the rubber layer.

[0022] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention cuts the edge of the woven bag, and the clamping rods at the edge part are pressed against each other, and the concave and convex layers cooperate to clamp the woven bag, so that the woven bag is accurately cut, and the cut is relatively beautiful;

[0023] Multiple sets of cutting racks can cut woven bags into multiple broken woven bags in fragments, making it easier to collect the scraps and avoid the state of being disconnected;

[0024] The upper end of the longitudinal axis is squeezed with the triangular plate, and the longitudinal axis and the supporting assembly as a whole move up and down, and the edge of the woven bag close to the cutting is rubbed with glue to fix the edge to prevent the woven bag from loosening;

[0025] The coating shafts on both sides of the woven bag roll to attract the rubber layers to each other, causing the adsorption port to deform, allowing the glue to fully contact the woven bag, and the edge of the woven bag can be sealed during the cutting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the drive cover separation structure of the present invention;

[0029] Figure 3 It is a schematic diagram of the structure of the cutting portion of the present invention;

[0030] Figure 4 It is a schematic diagram of the partial structure of the clamping rod of the present invention;

[0031] Figure 5It is a schematic diagram of the edge sealing structure of the present invention;

[0032] Figure 6 It is a schematic diagram of the support assembly structure of the present invention;

[0033] Figure 7 It is a schematic diagram of the longitudinal shaft end structure of the present invention;

[0034] Figure 8 It is a schematic diagram of the structure of the coated shaft of the present invention;

[0035] Fig. 9 It is a schematic diagram of the cross-sectional structure of the coated shaft of the present invention.

[0036] In the figure: 1, frame plate; 11, sliding block; 12, longitudinal slide; 2, driving cover; 3, cylinder; 4, cutting part; 41, cutting frame; 411, longitudinal rod; 412, blade; 413, telescopic rod; 414, clamping rod; 415, notch; 416, protruding layer; 5, edge sealing part; 51, triangle plate; 52, guide frame; 53, clamping box; 531, barrier layer; 532, inner layer; 533, connecting port; 534, coating shaft; 535, suction port; 536, rubber layer; 54, supporting assembly; 541, connecting rod; 542, sliding sheet; 543, supporting spring; 544, slider; 545, longitudinal spring body; 546, longitudinal axis; 547, round end. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] See also Figure 1-9 The present invention provides a technical solution: a mesh woven bag edge cutting and processing device, comprising two sets of opposite racks 1, the two sets of racks 1 can slide and squeeze relative to each other, and the two sets of racks 1 have a cutting part 4 on one side opposite to each other, and the cutting part 4 includes:

[0039] A plurality of cutting frames 41 are arranged in two opposite groups and are respectively fixed to the frame plates 1 on both sides. The outermost cutting frames 41 are used to limit the position of the woven bag, and the cutting frames 41 in the middle part cut the woven bag to control the position of the woven bag so that the cut edge of the woven bag is neat.

[0040] A side of the cutting portion 4 is also provided with an edge sealing portion 5, which is used to seal the position where the woven bag is cut, and the edge sealing portion 5 includes:

[0041] Two groups of clamping boxes 53, the two groups of clamping boxes 53 are respectively arranged on the two groups of frame plates 1 opposite to each other, and the inside of the clamping boxes 53 contains glue for adhering the woven bags;

[0042] The triangle plate 51 is located at the upper end of the clamping box 53 and is used to control the clamping box 53 to float up and down for application;

[0043] The support assembly 54 is connected to the frame plate 1 and is used to support the clamping box 53 .

[0044] Sliding blocks 11 are fixed to the upper ends of the two groups of frame plates 1. A driving cover 2 is also provided at the upper ends of the two groups of frame plates 1. The driving cover 2 clamps the two groups of sliding blocks 11. A cylinder 3 is also fixed to the inner side of the driving cover 2, and its pushing end is against the outer side of the frame plate 1. The cylinders 3 on both sides push the frame plates 1 on both sides to move, so that the cutting part 4 and the edge sealing part 5 operate on the edge of the woven bag.

[0045] The cutting frame 41 includes a longitudinal rod 411 and a blade 412. The longitudinal rod 411 is fixed to the inner side of the frame plate 1, and the blade 412 is fixed to the inner side of the longitudinal rod 411. The blades 412 on both sides are fitted and have inclined blade surfaces.

[0046] It should be noted that if Figure 3 As shown, the blade 412 is inclined, so the cutting frame 41 cuts the edge of the woven bag like a pair of scissors during the cutting process, making the edge of the woven bag relatively smooth.

[0047] The outermost longitudinal rod 411 is also fixed to the inner side of the frame plate 1, and a telescopic rod 413 is fixed to the inner side of the longitudinal rod 411. The ends of the telescopic rods 413 on both sides are fixed with clamping rods 414 which are squeezed against each other and are used to clamp the woven bag.

[0048] The end face of the clamping rod 414 on one side is provided with a notch 415, and the end face of the clamping rod 414 on the other side is provided with a protruding layer 416. Before the woven bag is clamped, the end face of the protruding layer 416 contacts the end face of the clamping rod 414 on the opposite side, and during clamping, the protruding layer 416 cooperates with the notch 415;

[0049] It should be noted that when the woven bag is clamped by the two sets of clamping rods 414, the two sets of clamping rods 414 do not squeeze the woven bag. Then, when the racks 1 on both sides move, the woven bag is clamped between the protruding layer 416 and the recess 415, forming a stuck state, and it is difficult to drive the woven bag to move under the action of external force.

[0050] The telescopic rod 413 is a sleeve and a sleeve rod sleeve connection, and a supporting spring is arranged inside the sleeve. The telescopic rod 413 is mainly used to control compression after squeezing, so that the woven bag can be cut stably to avoid jamming.

[0051] The triangle plate 51 is fixed to the lower end of the driving cover 2. A longitudinal sliding opening 12 is provided on the outer side of the frame plate 1. The longitudinal sliding opening 12 is used to limit the support assembly 54. The upper end of the support assembly 54 abuts against the triangle plate 51, realizing up and down movement when moving.

[0052] A guide frame 52 is fixed to the inner side of the frame plate 1, and the support assembly 54 includes a connecting rod 541, a sliding sheet 542, a support spring 543, a slider 544, a longitudinal spring body 545 and a longitudinal shaft 546;

[0053] The connecting rod 541 is transversely passed through the longitudinal sliding opening 12 and the guide frame 52 and fixed to the clamping box 53. The sliding sheet 542 is sleeved on the connecting rod 541 and fixed to the frame plate 1. The end of the connecting rod 541 is circular, and the support spring 543 is fixed to the end of the connecting rod 541. The sliding sheet 542 is fixed to the end of the support spring 543. The support spring 543 is used to support the outer side of the frame plate 1. When the frame plate 1 moves, the support spring 543 is stretched.

[0054] The slider 544 is disposed in the guide frame 52, and the connecting rod 541 passes through the slider 544, the longitudinal spring body 545 is supported at the lower end of the slider 544, the longitudinal shaft 546 is fixed at the upper end of the slider 544, and the upper end of the longitudinal shaft 546 abuts against the triangular plate 51;

[0055] It should be noted that, when the frame 1 is moving, the clamping boxes 53 on both sides are in a state of abutment, and the sliding sheet 542 is fixed to the frame 1, which will pull the supporting spring 543 to stretch and also exert pressure on the clamping box 53, so that the clamping box 53 can firmly clamp the woven bag, and at the same time, it can squeeze the triangular plate 51 during the movement of the longitudinal axis 546. The position of the triangular plate 51 does not move, and the longitudinal axis 546 moves horizontally and rises and falls, so as to achieve a kneading-like squeezing of the woven bag.

[0056] The longitudinal axis 546 is open and used to clamp the triangle plate 51. The inner wall of the opening of the longitudinal axis 546 is also provided with a circular end 547. The circular end 547 is used to contact the outer side of the triangle plate 51. The opening portion limits the triangle plate 51 to avoid the end of the longitudinal axis 546 from being offset. Since it also has a circular end 547, the circular part of the circular end 547 is pressed against the triangle plate 51 to make the movement smoother. When the triangle plate 51 fluctuates, the circular end 547 can always slide well along the triangle plate 51.

[0057] The interior of the clamping box 53 is hollow and used to hold glue. The glue is injected into the clamping box 53 in the form of a pipe. A barrier layer 531 is fixed on the outside of the clamping box 53. The barrier layer 531 is integrally provided with a U-shaped inner layer 532. The inner wall of the inner layer 532 is also provided with a connection port 533 connected with the clamping box 53. A coating shaft 534 embedded outside the barrier layer 531 is rotatably provided in the barrier layer 531. The outer wall of the coating shaft 534 is provided with multiple adsorption ports 535 extending along its axis. A rubber layer 536 that can fluctuate is adhered to the adsorption port 535. The rubber layer 536 has magnetic material inside, and a magnetic position magnet is provided.

[0058] It should be noted that, during the up and down movement, the glue is compacted downward and moved out from the connecting port 533 and squeezed into the adsorption port 535. At the same time, the clamping box 53 and its components are made of plastic, which will not affect the effect of the magnet. The thickness of the woven bag is relatively thin, so the coating shaft 534 on both sides that squeeze the woven bag against each other will cause the rubber layer 536 to move outward under the action of the mutual adsorption of the magnets, causing deformation and squeezing the glue outward, thereby achieving the effect of quantitative coating and automatically coating during cutting.

[0059] The working principle of the present invention is as follows: the woven bag is clamped between the cutting parts 4, the cylinder 3 pushes the frame plates 1 on both sides to move, and the blades 412 on both sides of the cutting frame 41 are controlled to squeeze each other, so that the edge of the woven bag is cut, and the clamping rods 414 on the edge parts squeeze each other to clamp the woven bag and keep it in place. During the cutting process, the cutting line is relatively stable, and the woven bag is clamped in cooperation with the recess 415 and the protruding layer 416, so that the woven bag can remain in place even under the squeezing force of cutting or the driving force from the outside, and the woven bag is cut accurately, and the incision is relatively beautiful.

[0060] It should be noted that the use of multiple sets of cutting racks 41 can cut the woven bags into multiple broken woven bags. During the recycling process, the woven bags can be separated to the greatest extent. At the same time, the mesh shape makes the multiple cut strips appear in fragments, making it easier to collect the scraps and avoid the state of being tangled.

[0061] Among them, during the movement of the frame 1, the slider 544 is also pushed to move, and the clamping boxes 53 on both sides clamp the woven bag, while causing the connection rod 541 to remain stationary, the support spring 543 is stretched, and the longitudinal axis 546 also moves laterally with the slider 544. The upper end of the longitudinal axis 546 is squeezed by the triangular plate 51, and the longitudinal axis 546 and the support assembly 54 as a whole move up and down. The clamping boxes 53 on both sides move in opposite directions, and the edge part of the woven bag close to the cutting is rubbed with glue to fix the edge to prevent the woven bag from loosening.

[0062] It should be noted that the longitudinal spring body 545 supports the slider 544 so that the slider 544 can move in the up and down directions. At the same time, the coating shaft 534 can also roll along the woven bag. During the ups and downs, the glue in the clamping box 53 moves out along the connecting port 533 and can move into the adsorption port 535. The coating shafts 534 on both sides of the woven bag roll so that the rubber layers 536 attract each other, which causes the adsorption port 535 to deform, so that the glue is fully in contact with the woven bag, which attracts the magnet. During the cutting process, the edge of the woven bag can be sealed.

[0063] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0064] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A mesh woven bag edge cutting and processing device, characterized in that: The invention comprises two sets of opposite racks (1), wherein the two sets of racks (1) can slide and squeeze relative to each other, and the opposite sides of the two sets of racks (1) are provided with cutting parts (4), wherein the cutting parts (4) comprise: A plurality of cutting frames (41), wherein the plurality of cutting frames (41) are arranged in two opposite groups and are respectively fixed to the frame plates (1) on both sides, wherein the outermost cutting frames (41) are used to limit the position of the woven bag, and the cutting frames (41) in the middle part are used to cut the woven bag; A side of the cutting portion (4) is also provided with an edge sealing portion (5), and the edge sealing portion (5) is used to seal the position where the woven bag is cut, and the edge sealing portion (5) comprises: Two groups of clamping boxes (53), the two groups of clamping boxes (53) are respectively arranged on the two groups of frame plates (1) opposite to each other, and the inside of the clamping boxes (53) contains glue for adhering the woven bags; A triangular plate (51) is located at the upper end of the clamping box (53) and is used to control the clamping box (53) to float up and down for application; The support assembly (54) is connected to the frame plate (1) and is used to support the clamping box (53).

2. The mesh woven bag edge cutting and processing equipment according to claim 1 is characterized in that: A sliding block (11) is fixed to the upper ends of the two groups of frame plates (1). A driving cover (2) is also provided at the upper ends of the two groups of frame plates (1). The driving cover (2) clamps the two groups of sliding blocks (11). A cylinder (3) is also fixed to the inner side of the driving cover (2), and its pushing end abuts against the outer side of the frame plate (1).

3. The mesh woven bag edge cutting and processing equipment according to claim 1 is characterized in that: The cutting frame (41) comprises a longitudinal rod (411) and a blade (412), wherein the longitudinal rod (411) is fixed on the inner side of the frame plate (1), and the blade (412) is fixed on the inner side of the longitudinal rod (411), and the blades (412) on both sides are arranged in a close fit and have inclined blade surfaces.

4. The mesh woven bag edge cutting and processing equipment according to claim 3 is characterized in that: The outermost longitudinal rod (411) is also fixed on the inner side of the frame plate (1), and a telescopic rod (413) is fixed on the inner side of the longitudinal rod (411). The ends of the telescopic rods (413) on both sides are fixed with clamping rods (414) which are arranged to squeeze each other and are used to clamp the woven bag.

5. The mesh woven bag edge cutting and processing equipment according to claim 4, characterized in that: The end face of the clamping rod (414) on one side is provided with a notch (415), and the end face of the clamping rod (414) on the other side is provided with a protruding layer (416). Before the woven bag is clamped, the end face of the protruding layer (416) contacts the end face of the clamping rod (414) on the opposite side, and during clamping, the protruding layer (416) cooperates with the notch (415).

6. The mesh woven bag edge cutting and processing equipment according to claim 5, characterized in that: The telescopic rod (413) is a sleeve and a sleeve rod sleeved together, and a supporting spring is provided inside the sleeve.

7. The mesh woven bag edge cutting and processing equipment according to claim 2, characterized in that: The triangular plate (51) is fixed to the lower end of the driving cover (2); a longitudinal sliding opening (12) is provided on the outer side of the frame plate (1); the longitudinal sliding opening (12) is used to limit the support assembly (54); the upper end of the support assembly (54) abuts against the triangular plate (51), and realizes up and down movement when moving.

8. The mesh woven bag edge cutting and processing equipment according to claim 7, characterized in that: A guide frame (52) is fixed on the inner side of the frame plate (1), and the support assembly (54) comprises a connecting rod (541), a sliding sheet (542), a support spring (543), a sliding block (544), a longitudinal spring body (545) and a longitudinal shaft (546); The connecting rod (541) transversely penetrates the longitudinal sliding opening (12) and the guide frame (52) and is fixed to the clamping box (53); the sliding sheet (542) is sleeved on the connecting rod (541) and is fixed to the frame plate (1); the end of the connecting rod (541) is circular, and a support spring (543) is fixed to the end of the connecting rod (541); the sliding sheet (542) is fixed to the end of the support spring (543); the support spring (543) is used to support the outer side of the frame plate (1); when the frame plate (1) moves, the support spring (543) is stretched; The slider (544) is arranged in the guide frame (52), and the connecting rod (541) passes through the slider (544), the longitudinal spring body (545) is supported on the lower end of the slider (544), the longitudinal axis (546) is fixed on the upper end of the slider (544), and the upper end of the longitudinal axis (546) is against the triangular plate (51).

9. The mesh woven bag edge cutting and processing equipment according to claim 8, characterized in that: The longitudinal axis (546) is provided in an open manner for clamping the triangular plate (51), and the inner wall of the opening of the longitudinal axis (546) is also provided with a circular end (547), and the circular end (547) is used to contact the outer side of the triangular plate (51).

10. The mesh woven bag edge cutting and processing equipment according to claim 8, characterized in that: The interior of the clamping box (53) is hollow and used to contain glue. A barrier layer (531) is fixed on the outside of the clamping box (53). The barrier layer (531) is integrally provided with a U-shaped inner layer (532). The inner wall of the inner layer (532) is also provided with a connection port (533) connected to the clamping box (53). A coating shaft (534) embedded outside the barrier layer (531) is rotatably provided inside the barrier layer (531). The outer wall of the coating shaft (534) is provided with a plurality of adsorption ports (535) extending along its axis. A rubber layer (536) that can fluctuate is adhered to the adsorption port (535), and a magnetic substance is inside the rubber layer (536).

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