Sealing gasket and processing equipment for metal sheet layer of sealing gasket

Abstract

The present invention discloses a sealing gasket and processing equipment for a metal sheet layer of the sealing gasket, wherein the sealing gasket comprises a metal sheet layer with holes, an upper rubber pad arranged on the upper surface of the metal sheet layer, and a lower rubber pad arranged on the lower surface of the metal sheet layer; a portion of the multiple holes have hole edges that bulge upward to form a first bulged edge, and the first bulged edge is embedded in the upper rubber pad; another portion of the multiple holes have hole edges that bulge downward to form a second bulged edge, and the second bulged edge is embedded in the lower rubber pad; the problem that the metal sheet layer inside the existing sealing gasket is only pressed and formed by glue and the rubber pad layer on the surface, and the tightness between the metal sheet layer and the rubber pad layer is not enough, resulting in the phenomenon that it is easy to crack after long-term use is solved.

Description

Technical Field

[0001] The invention relates to the field of sealing gasket processing, in particular to a sealing gasket and processing equipment for a sealing gasket metal sheet layer. Background Art

[0002] Sealing gaskets are made of metal or non-metallic plate materials through cutting, stamping or cutting processes, and are used for sealing connections between pipes and between parts of machinery and equipment. In order to improve the mechanical strength and hardness of the gasket, some types of gaskets are pressed and formed by multiple layers of materials. The middle layer of the gasket is a metal sheet with holes, and the two sides are rubber pad layers, which are pressed and formed by gluing; the existing metal sheet layer is only pressed and formed by glue and the outer rubber pad layer. The tightness between the metal sheet layer and the rubber pad layer is not enough, which leads to cracking after long-term use.

[0003] Therefore, providing a sealing gasket with higher tightness and a processing device for processing the metal sheet layer inside the sealing gasket is an urgent problem to be solved by the present invention. Summary of the invention

[0004] The purpose of the present invention is to provide a sealing gasket and a processing device for the metal sheet layer of the sealing gasket, which solves the problem that the metal sheet layer inside the existing sealing gasket is only pressed and formed by glue and the outer rubber pad layer, and the tightness between the metal sheet layer and the rubber pad layer is not enough, which leads to easy cracking after long-term use.

[0005] In order to achieve the above object, the present invention provides a sealing gasket, which comprises a metal sheet layer with holes, an upper rubber pad arranged on the upper surface of the metal sheet layer, and a lower rubber pad arranged on the lower surface of the metal sheet layer;

[0006] A portion of the plurality of holes has an edge of the hole protruding upward to form a first protruding edge, and the first protruding edge is embedded in the upper rubber pad;

[0007] Another portion of the holes has a hole edge that protrudes downward to form a second protruding edge, and the second protruding edge is embedded in the lower rubber pad.

[0008] The present invention also provides a processing device for a metal sheet layer of a sealing gasket, the processing device comprising a base, a movable base arranged on the base, a punching mechanism and a pressing mechanism respectively arranged on the base;

[0009] The movable seat is provided with a punching hole;

[0010] The edge pressing mechanism comprises a first pressing plate and a second pressing plate respectively arranged above and below the moving seat, so that the first pressing plate and the second pressing plate can move towards each other.

[0011] A plurality of first edge-pressing frustum columns are provided on the lower surface of the first pressing plate;

[0012] A plurality of second edge-pressing frustum columns are disposed on the upper surface of the second pressing plate.

[0013] Preferably, a first cylinder connected to the first pressing plate is provided on the base;

[0014] A second cylinder connected to the second pressing plate is arranged on the base.

[0015] Preferably, the first edge-pressing frustum columns and the second edge-pressing frustum columns are arranged alternately.

[0016] Preferably, the punching mechanism includes a bracket fixed on the base, a hydraulic press arranged on the bracket, a pressing plate connected to the output end of the hydraulic press, and a punch arranged on the pressing plate.

[0017] Preferably, a driving mechanism is provided on the base, and the driving mechanism can drive the movable seat to move from the punching mechanism to the edge pressing mechanism.

[0018] Preferably, the driving mechanism comprises a driving motor arranged on the base, a lead screw connected to an output shaft of the driving motor, and a lead screw nut sleeved on the lead screw;

[0019] The lead screw nut is connected to the moving seat.

[0020] Preferably, an optical axis is fixed on the base, and a sliding sleeve sleeved on the optical axis is provided on the movable base.

[0021] Preferably, a pressing mechanism is provided on the movable seat, and the pressing mechanism can press the metal sheet layer onto the surface of the movable seat.

[0022] Preferably, the clamping mechanism comprises a driving cylinder arranged on the side of the movable seat and a pressure strip connected to the piston rod of the driving cylinder, so that the extension and retraction of the driving cylinder can drive the pressure strip to move toward the surface of the movable seat.

[0023] The present invention provides a sealing gasket, which comprises a metal sheet layer with holes, an upper rubber pad arranged on the upper surface of the metal sheet layer, and a lower rubber pad arranged on the lower surface of the metal sheet layer; a portion of the multiple holes has a hole edge that protrudes upward to form a first protruding edge, and the first protruding edge is embedded in the upper rubber pad; another portion of the multiple holes has a hole edge that protrudes downward to form a second protruding edge, and the second protruding edge is embedded in the lower rubber pad; the holes on the metal sheet layer, the first protruding edge and the second protruding edge on the holes can extend into the rubber pads on both sides, and can further increase the gripping force of the metal sheet layer and the rubber pad layer with the help of glue bonding, thereby improving the overall mechanical strength of the sealing gasket and preventing it from cracking; at the same time, the present invention also provides a method for preparing the above-mentioned The equipment for metal sheet layers can first perform punching operations on the surface of the metal sheet through the punching mechanism in the equipment, and then use the edge pressing mechanism to form a raised edge. The maximum diameter of the frustum in the edge pressing mechanism is larger than the hole on the metal sheet (the diameter of the punch on the moving seat here is larger than the diameter of the punch, so that the diameter of the hole formed by the punching on the metal sheet is smaller than the diameter of the punch on the moving seat). After the frustum passes through the hole, the edge of the hole can be bent along the movement direction of the frustum to form a ring-shaped raised edge. Since the frustum is distributed on the upper and lower sides of the metal sheet, part of the hole on the metal sheet forms a raised edge upward, and the other part of the hole forms a raised edge downward. The metal sheet layer processed and formed by the processing equipment provided by the present invention can be tightly locked with the rubber pad layer pressed on the surface, which greatly improves the overall strength of the sealing gasket.

[0024] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings:

[0026] Figure 1 is a structural diagram of the sealing gasket provided by the present invention;

[0027] Figure 2 This is a diagram of a first use state of the processing equipment provided by the present invention;

[0028] Figure 3 This is a second use state diagram of the processing equipment provided by the present invention;

[0029] Figure 4 yes Figure 2 A magnified view of part A;

[0030] Figure 5 It is a side view of the processing equipment provided by the present invention.

[0031] Description of Reference Numerals

[0032] 1-upper rubber pad; 2-second raised edge; 3-metal sheet layer; 4-lower rubber pad; 5-base; 6-drive motor; 7-screw; 8-optical axis; 9-moving seat; 10-drive cylinder; 11-pressing strip; 12-bracket; 13-hydraulic press; 14-pressing plate; 15-punch; 16-first cylinder; 17-first pressing plate; 18-first edge-pressing circular table column; 19-second pressing plate; 20-second edge-pressing circular table column. DETAILED DESCRIPTION

[0033] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0034] like Figure 1-4 As shown: The present invention provides a sealing gasket, which includes a metal sheet layer 3 with holes, an upper rubber pad 1 arranged on the upper surface of the metal sheet layer 3, and a lower rubber pad 4 arranged on the lower surface of the metal sheet layer 3; a portion of the multiple holes have hole edges that bulge upward to form a first bulged edge, and the first bulged edge is embedded in the upper rubber pad 1; another portion of the multiple holes have hole edges that bulge downward to form a second bulged edge 2, and the second bulged edge 2 is embedded in the lower rubber pad 4. The holes on the metal sheet layer, the first bulged edge and the second bulged edge thereon can extend into the rubber pads on both sides, and combined with the bonding of glue, can further increase the gripping force of the metal sheet layer and the rubber pad layer, thereby improving the overall mechanical strength of the sealing gasket and making it less prone to cracking.

[0035] The present invention also provides a processing device for a metal sheet layer of a sealing gasket, the processing device comprising a base 5, a moving seat 9 arranged on the base 5, a punching mechanism and a pressing mechanism respectively arranged on the base 5; the moving seat 9 is provided with a punching hole; the pressing mechanism comprises a first pressing plate 17 and a second pressing plate 19 respectively arranged above and below the moving seat 9; so that the first pressing plate 17 and the second pressing plate 19 can move toward each other. A plurality of first pressing round cone columns 18 are arranged on the lower surface of the first pressing plate 17; a plurality of second pressing round cone columns 20 are arranged on the upper surface of the second pressing plate 19. Through the punching mechanism in the equipment, punching operation can be performed on the surface of the metal sheet first, and then a raised edge can be formed by using a pressing mechanism. The maximum diameter of the frustum in the pressing mechanism is larger than the hole on the metal sheet (the diameter of the punch on the moving seat here is larger than the diameter of the punch, so that the diameter of the hole formed by the punching on the metal sheet is smaller than the diameter of the punch on the moving seat). After the frustum passes through the hole, the edge of the hole can be bent along the movement direction of the frustum to form a ring-shaped raised edge. Since the frustum is distributed on the upper and lower sides of the metal sheet, part of the hole on the metal sheet forms a raised edge upward, and the other part of the hole forms a raised edge downward. The metal sheet layer processed and formed by the processing equipment provided by the present invention can be tightly locked with the rubber pad layer pressed on the surface, which greatly improves the overall strength of the sealing gasket.

[0036] In a preferred embodiment of the present invention, in order to facilitate the first pressing plate and the second pressing plate to move toward each other to complete the edge pressing operation, a first cylinder 16 connected to the first pressing plate 17 is provided on the base 5; and a second cylinder connected to the second pressing plate 19 is provided on the base 5.

[0037] In a preferred embodiment of the present invention, in order to make the hole portion on the metal sheet layer bulge upward and the other end bulge downward, the first raised edge and the second raised edge can be staggered so that the metal sheet layer can better fit with the upper and lower adhesive layers, the first pressing cone column 18 and the second pressing cone column 20 are staggered.

[0038] In a preferred embodiment of the present invention, in order to perform punching operations on metal sheets, the punching mechanism includes a bracket 12 fixed on the base 5, a hydraulic press 13 arranged on the bracket 12, a pressure plate 14 connected to the output end of the hydraulic press 13, and a punch 15 arranged on the pressure plate 14; the diameter of the punch 15 is smaller than the punching hole.

[0039] In a preferred embodiment of the present invention, in order to be able to move the metal sheet after the punching operation is completed to the edge pressing mechanism for edge pressing operation, a driving mechanism is provided on the base 5, and the driving mechanism can drive the movable seat 9 to move from the punching mechanism to the edge pressing mechanism.

[0040] In a preferred embodiment of the present invention, in order to facilitate the control of the displacement of the moving seat 9, the driving mechanism includes a driving motor 6 arranged on the base 5, a screw 7 connected to the output shaft of the driving motor 6, and a screw nut sleeved on the screw 7; the screw nut is connected to the moving seat 9.

[0041] In a preferred embodiment of the present invention, in order to limit the displacement of the movable seat 9 , an optical axis 8 is fixed on the base 5 , and a sliding sleeve sleeved on the optical axis 8 is provided on the movable seat 9 .

[0042] In a preferred embodiment of the present invention, in order to press the metal sheet layer onto the movable seat, avoid displacement during processing, and improve the accuracy of punching and edge pressing operations, a clamping mechanism is provided on the movable seat 9, and the clamping mechanism can press the metal sheet layer onto the surface of the movable seat 9.

[0043] In a preferred embodiment of the present invention, the clamping mechanism includes a driving cylinder 10 arranged on the side of the movable seat 9 and a pressure strip 11 connected to the piston rod of the driving cylinder 10; so that the extension and retraction of the driving cylinder 10 can drive the pressure strip 11 to move toward the surface of the movable seat 9.

[0044] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0045] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0046] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A processing device for a gasket metal sheet layer, characterized in that: The processing equipment comprises a base (5), a movable base (9) arranged on the base (5), and a punching mechanism and a pressing mechanism respectively arranged on the base (5); The movable seat (9) is provided with a punching hole; The edge pressing mechanism comprises a first pressing plate (17) and a second pressing plate (19) respectively arranged above and below the movable seat (9); the first pressing plate (17) and the second pressing plate (19) are capable of moving towards each other; A plurality of first edge-pressing frustum columns (18) are provided on the lower surface of the first pressing plate (17); A plurality of second edge-pressing frustum columns (20) are arranged on the upper surface of the second pressing plate (19).

2. The processing equipment according to claim 1, characterized in that: The base (5) is provided with a first cylinder (16) connected to the first pressing plate (17); The base (5) is provided with a second cylinder connected to the second pressing plate (19).

3. The processing equipment according to claim 2, characterized in that: The first edge-pressing frustum columns (18) and the second edge-pressing frustum columns (20) are arranged alternately.

4. The processing equipment according to claim 3, characterized in that: The punching mechanism comprises a bracket (12) fixed on the base (5), a hydraulic press (13) arranged on the bracket (12), a pressing plate (14) connected to the output end of the hydraulic press (13), and a punch (15) arranged on the pressing plate (14); the diameter of the punch (15) is smaller than the punching hole.

5. The processing equipment according to claim 4, characterized in that: The base (5) is provided with a driving mechanism, and the driving mechanism can drive the movable seat (9) to move from the punching mechanism to the edge pressing mechanism.

6. The processing equipment according to claim 5, characterized in that The driving mechanism comprises a driving motor (6) arranged on the base (5), a lead screw (7) connected to the output shaft of the driving motor (6), and a lead screw nut sleeved on the lead screw (7); The lead screw nut is connected to the moving seat (9).

7. The processing equipment according to claim 6, characterized in that An optical axis (8) is fixed on the base (5), and a sliding sleeve sleeved on the optical axis (8) is provided on the movable seat (9).

8. The processing equipment according to claim 7, characterized in that: The movable seat (9) is provided with a pressing mechanism, and the pressing mechanism is capable of pressing the metal sheet layer onto the surface of the movable seat (9).

9. The processing equipment according to claim 8, characterized in that The clamping mechanism comprises a driving cylinder (10) arranged on the side of the movable seat (9) and a pressure strip (11) connected to the piston rod of the driving cylinder (10); the extension and retraction of the driving cylinder (10) can drive the pressure strip (11) to move toward the surface of the movable seat (9).

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