Follow-up feeding automatic punching device applied to sealing element lips

Abstract

The invention relates to a follow-up feeding automatic punching device applied to sealing element lips. The follow-up feeding automatic punching device comprises a feeding avoiding follow-up unit and an up-down punching unit. The feeding avoiding follow-up unit comprises a base, a vertical plate is fixed to the base, a feeding driving air cylinder is fixed to one side of the vertical plate, a telescopic rod of the feeding driving air cylinder is connected with a moving seat, a rack is fixed to the moving seat, and a cutting board mounting block is rotationally arranged on the rack through a rotating shaft. A wedge block is arranged at the end, facing the feeding driving air cylinder, of the cutting board mounting block, a cutting board is arranged at the end, back to the feeding driving air cylinder, of the cutting board mounting block, a spring plunger is arranged at the position, below the cutting board mounting block, of the rack, a horizontal plate is mounted at the top of the vertical plate, and a cam bearing is rotationally mounted at one end of the upper surface of the horizontal plate through a vertical plate. The cam bearing is in rolling fit with the bottom of the wedge block. The problems that a traditional tool is difficult to feed, the appearance face of a sealing piece is scratched and the like are solved, one set of tool can cut two notches through the upper punching unit and the lower punching unit, and cost is saved.

Description

Technical Field

[0001] The invention relates to the technical field of punching processing of sealing lip edges, and in particular to a follow-up feeding automatic punching device applied to sealing lip edges. Background Art

[0002] Automotive seals are one of the most important parts of automobiles and are widely used in doors, windows, bodies, sunroofs, engine boxes, trunks, etc. The cross-sectional shape, lip length, lip thickness, cut size and cut quality of seals greatly affect the quality of vehicle installation and the comfort of the car. In order to improve the processing quality of seal notches and reduce processing costs, automotive seal suppliers at all levels need to optimize the processing technology.

[0003] The traditional seal lip punching tool uses a servo feed system to push the tool to the theoretical punching position along the feed direction of the seal, or inserts the seal into the tool by hand. These two feeding methods are not very friendly to seals with long incisions and incisions far from the end. During the feeding process, the lip will contact and rub with parts such as the cutter and the die to generate resistance, which will cause feeding difficulties, scratch the appearance of the sealing strip, affect the position and size of the incision, and prolong the operation time. Summary of the invention

[0004] The present invention aims to solve the deficiencies of the prior art and provides a follow-up feeding automatic punching device applied to the lip edge of a sealing member.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A follow-up feeding automatic punching device applied to the lip edge of a seal, comprising a feeding avoidance follower unit and an upper and lower punching unit;

[0007] The feeding avoidance follower unit includes a base, a vertical plate is fixed on the base, a feeding drive cylinder is fixed on one side of the vertical plate, a telescopic rod of the feeding drive cylinder is connected to a moving seat, a frame is fixed on the moving seat, an anvil mounting block is rotatably arranged on the frame through a rotating shaft, a wedge is arranged on the end of the anvil mounting block facing the feeding drive cylinder, and an anvil is arranged on the end facing away from the feeding drive cylinder, a spring plunger is arranged on the frame below the anvil mounting block, the top of the spring plunger is fitted to the bottom of the anvil mounting block, a horizontal plate is installed on the top of the vertical plate, a cam bearing is rotatably installed on one end of the upper surface of the horizontal plate through the vertical plate, and the cam bearing is rollingly fitted at the bottom of the wedge;

[0008] The upper and lower punching units include a lifting plate slidably installed on one side of the frame, a support plate is fixed on the top of the lifting plate, the support plate is located directly above the anvil, a punching drive cylinder is fixed on the support plate, the telescopic rod of the punching drive cylinder is connected to a cutter fixing seat, a pressing block is provided under the cutter fixing seat, a connecting spring is fixed between the top of the pressing block and the bottom of the cutter fixing seat, a guide rail is provided on one side of the lifting plate corresponding to the cutter fixing seat and the pressing block, the cutter fixing seat and the pressing block are slidably installed on the guide rail, an upper cutter is fixed at the bottom of the cutter fixing seat, the upper cutter is inserted into the pressing block, a lower cutter is installed on the lower side of the lifting plate, the upper cutter is located above the anvil and the lower cutter is located below the anvil.

[0009] A through hole for the lifting plate to pass through is provided on the chopping board mounting block.

[0010] The beneficial effects of the present invention are as follows: the present invention greatly improves the problems of difficulty in feeding materials into traditional tooling and scratching the appearance surface of the seal, and the structure of simultaneous upper and lower punching can achieve two incisions with one set of tooling, saving costs, optimizing the original tooling structure, making the product quality higher and the work efficiency faster, and meeting the customers' high requirements for product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the initial state of the present invention;

[0012] Figure 2 It is a state diagram of the present invention when starting to feed;

[0013] Figure 3 It is a state diagram when the present invention completes feeding;

[0014] Figure 4 It is a structural schematic diagram of the upper and lower punching units in one direction;

[0015] Figure 5 It is a structural schematic diagram of the upper and lower punching units in another direction;

[0016] In the figure: 1-feeding avoidance follower unit; 2-upper and lower punching units; 3-seal;

[0017] 11-base; 12-vertical plate; 13-feeding drive cylinder; 14-moving seat; 15-frame; 16-rotating shaft; 17-anvil mounting block; 18-wedge block; 19-anvil; 110-spring plunger; 111-horizontal plate; 112-cam bearing; 113-long round groove; 114-plunger mounting seat;

[0018] 21-lifting plate; 22-support plate; 23-punching drive cylinder; 24-cutter fixing seat; 25-pressing block; 26-connecting spring; 27-guide rail; 28-upper cutter; 29-lower cutter; 210-limiting plate; 211-extension plate; 212-limiting column; 213-limiting block;

[0019] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings. DETAILED DESCRIPTION

[0020] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The embodiments are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail by way of example with reference to the accompanying drawings in the following paragraphs. The advantages and features of the present invention will become clearer according to the following description. It should be noted that the accompanying drawings are all in a very simplified form and are not in precise proportions, and are only used to facilitate and clearly assist in explaining the purpose of the embodiments of the present invention.

[0021] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0023] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0024] A follow-up feeding automatic punching device applied to the lip edge of a seal, such as Figure 1 As shown, it includes a feed avoidance follower unit 1 and an upper and lower punching unit 2.

[0025] Feeding avoidance follower unit 1 Figure 2 , Figure 3As shown, it includes a base 11, a vertical plate 12 is fixed on the base 11, a feed drive cylinder 13 is fixed on one side of the vertical plate 12, the telescopic rod of the feed drive cylinder 13 is connected to a moving seat 14, a frame 15 is fixed on the moving seat 14, a cutting board mounting block 17 is rotatably provided on the frame 15 through a rotating shaft 16, a wedge 18 is provided on the end of the cutting board mounting block 17 facing the feed drive cylinder 13 and a cutting board 19 is provided on the end facing away from the feed drive cylinder 13, a spring plunger 110 is provided on the frame 15 below the cutting board mounting block 17, the top of the spring plunger 110 is fitted to the bottom of the cutting board mounting block 17, a horizontal plate 111 is installed on the top of the vertical plate 12, a cam bearing 112 is rotatably installed on one end of the upper surface of the horizontal plate 111 through the vertical plate, and the cam bearing 112 is rollingly fitted at the bottom of the wedge 18.

[0026] A protrusion is provided at one end of the bottom of the wedge block 18 close to the feed driving cylinder 13 , and an arc surface is provided between the protrusion and the bottom of the wedge block 18 .

[0027] The lower part of the frame 15 is an n-shaped structure, and the anvil mounting block 17 is rotatably mounted between two side plates of the n-shaped structure.

[0028] An oblong groove 113 is provided on the outer wall of the n-shaped structural side plate at the lower part of the frame 15 . A plunger mounting seat 114 is installed in the oblong groove 113 by bolts, and the spring plunger 110 is fixed on the plunger mounting seat 114 .

[0029] The lower part of the side plate of the n-shaped structure at the lower part of the frame 15 is detachably mounted on the side wall of the moving seat 14 by bolts.

[0030] Upper and lower punching units 2 Figure 4 , Figure 5 As shown, it includes a lifting plate 21 slidably mounted on one side of the frame 15, a support plate 22 is fixed on the top of the lifting plate 21, the support plate 22 is located directly above the anvil 19, a punching drive cylinder 23 is fixed on the support plate 22, the telescopic rod of the punching drive cylinder 23 is connected to a cutter fixing seat 24, a pressing block 25 is provided below the cutter fixing seat 24, a connecting spring 26 is fixed between the top of the pressing block 25 and the bottom of the cutter fixing seat 24, a guide rail 27 is provided on one side of the lifting plate 21 corresponding to the cutter fixing seat 24 and the pressing block 25, the cutter fixing seat 24 and the pressing block 25 are slidably mounted on the guide rail 27, an upper cutter 28 is fixed at the bottom of the cutter fixing seat 24, the upper cutter 28 is inserted into the pressing block 25, a lower cutter 29 is installed on the lower side of the lifting plate 21, the upper cutter 28 is located above the anvil 19 and the lower cutter 29 is located below the anvil 19.

[0031] A limiting piece 210 is disposed at the bottom of the cutter fixing seat 24 .

[0032] An extension plate 211 is provided at the upper end of the lifting plate 21 on the side facing away from the cutter fixing seat 24, and a vertical avoidance channel is provided on the upper part of the frame 15 corresponding to the extension plate 211. The extension plate 211 passes through the vertical avoidance channel and is installed with a limiting column 212. A limiting block 213 is fixed on the frame 15, and the limiting column 212 is located directly below the limiting block 213.

[0033] An avoidance structure is provided between the lifting plate 21 and the anvil mounting block 17 . For example, an avoidance channel may be provided on the lifting plate 21 for the anvil mounting block 17 to pass through, or a through hole may be provided on the anvil mounting block 17 for the lifting plate 21 to pass through.

[0034] The working principle of the feeding avoidance follower unit 1 is as follows:

[0035] First, install the seal 3 on the rib plate. Figure 2 It can be seen that the initial working position of the tooling is away from the seal 3. The ball head of the spring plunger 110 uses the force of the spring to lift the anvil mounting block 17 to a certain angle around the rotating shaft 16 so that the anvil 19 can be inserted into the incision position of the seal 3. When starting to work, the feed drive cylinder 13 extends to push the moving seat 14, the frame 15 and the upper and lower punching units 2 to move to the left. When the feed drive cylinder 13 pushes the upper and lower punching units 2 to the specified distance, the cam bearing 112 just contacts the wedge 18. The feed drive cylinder 13 continues to push the upper and lower punching units 2 to move to the left. The cam bearing 112 begins to lift the wedge 18 and rotates it around the rotating shaft 16. Finally, the feed drive cylinder 13 completes its stroke and cleverly rotates the anvil 19 into the incision position of the seal 3. Figure 3 shown.

[0036] Since the natural state of the lip of the sealing member 3 is to bend upward, if the feeding avoidance follower unit 1 is not developed, and the anvil 19 is directly pushed horizontally into the incision position, the anvil 19 will definitely squeeze the lip and cannot enter the incision position.

[0037] The working principle of the upper and lower punching unit 2 is as follows:

[0038] After the anvil 19 enters the incision position of the seal 3, the punching drive cylinder 23 extends, pushing the cutter fixing seat 24, the upper cutter 28 and the pressure block 25 to move downward along the guide rail 27. After the pressure block 25 contacts the anvil mounting block 17, the pressure block 25 stops moving downward, and the punching drive cylinder 23 continues to extend, pushing the cutter fixing seat 24 and the upper cutter 28 to continue to move downward. The upper cutter 28 begins to punch the incision on the seal 3. When the limit plate 210 hits the upper surface of the pressure block 25, the upper cutter 28 completes the punching. The punching drive cylinder 23 continues to extend. At this time, due to the fixing effect of the pressure block 25, the lifting plate 21 and the lower cutter 29 begin to move upward and begin to punch the incision below the seal 3. When the limit column 212 hits the limit block 213, the punching is completed.

[0039] Of course, the feeding drive cylinder 13 that horizontally pushes the upper and lower punching units 2 can be replaced with a servo motor drive. The servo motor can be controlled by a program, and the start and stop positions can be controlled. The cam bearing 112 can be cancelled and replaced with a cylinder to push the anvil mounting block 17 to rotate around the rotating shaft 16. The action sequence is to first let the servo motor servo feed to a specified distance and stop, and then let the newly added cylinder push the anvil mounting block 17 to rotate around the rotating shaft 16, and after the anvil 19 rotates to flatten the upturned lip edge, the servo motor continues to feed to the punching position, and then the punching action is performed.

[0040] The present invention greatly improves the problems of difficult material feeding in traditional tooling and scratching of the appearance surface of the seal 3. The structure of simultaneous upper and lower punching can realize two incisions with one set of tooling, saving costs, optimizing the original tooling structure, making the product quality higher and the work efficiency faster, and meeting the high requirements of customers for product quality.

[0041] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the present invention, or are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A follow-up feeding automatic punching device applied to the lip of a seal, characterized in that: It comprises a material feeding avoidance follower unit (1) and an upper and lower punching unit (2); The feed avoidance follower unit (1) comprises a base (11), a vertical plate (12) is fixed on the base (11), a feed drive cylinder (13) is fixed on one side of the vertical plate (12), a telescopic rod of the feed drive cylinder (13) is connected to a moving seat (14), a frame (15) is fixed on the moving seat (14), a cutting board mounting block (17) is rotatably arranged on the frame (15) via a rotating shaft (16), and a wedge block (16) is arranged on one end of the cutting board mounting block (17) facing the feed drive cylinder (13) 18) and an anvil (19) is provided at one end facing away from the feeding driving cylinder (13); a spring plunger (110) is provided on the frame (15) below the anvil mounting block (17); the top of the spring plunger (110) is fitted to the bottom of the anvil mounting block (17); a horizontal plate (111) is installed on the top of the vertical plate (12); a cam bearing (112) is rotatably installed on one end of the upper surface of the horizontal plate (111) through the vertical plate; the cam bearing (112) is rollingly fitted to the bottom of the wedge block (18); The upper and lower punching unit (2) comprises a lifting plate (21) slidably mounted on one side of the frame (15), a support plate (22) is fixed on the top of the lifting plate (21), the support plate (22) is located directly above the cutting board (19), a punching drive cylinder (23) is fixed on the support plate (22), a telescopic rod of the punching drive cylinder (23) is connected to a cutter fixing seat (24), a material pressing block (25) is provided below the cutter fixing seat (24), and a connecting spring is fixed between the top of the material pressing block (25) and the bottom of the cutter fixing seat (24). (26), a guide rail (27) is provided on one side of the lifting plate (21) corresponding to the cutter fixing seat (24) and the pressing block (25), the cutter fixing seat (24) and the pressing block (25) are slidably mounted on the guide rail (27), an upper cutter (28) is fixed at the bottom of the cutter fixing seat (24), the upper cutter (28) is inserted into the pressing block (25), a lower cutter (29) is installed at the lower part of the side of the lifting plate (21), the upper cutter (28) is located above the chopping board (19) and the lower cutter (29) is located below the chopping board (19).

2. The automatic punching device for follow-up feeding applied to the lip of a seal according to claim 1, characterized in that: The chopping board mounting block (17) is provided with a through hole for the lifting plate (21) to pass through.

3. The automatic punching device for follow-up feeding applied to the lip of a seal according to claim 1, characterized in that: A limiting piece (210) is provided at the bottom of the cutter fixing seat (24).

4. The automatic punching device for follow-up feeding applied to the lip of a seal according to claim 1, characterized in that: An extension plate (211) is provided at the upper end of one side of the lifting plate (21) facing away from the cutter fixing seat (24); a vertical avoidance passage is provided on the upper part of the frame (15) corresponding to the extension plate (211); the extension plate (211) passes through the vertical avoidance passage and is installed with a limiting column (212); a limiting block (213) is fixed on the frame (15); and the limiting column (212) is located directly below the limiting block (213).

5. The automatic punching device for follow-up feeding applied to the lip of a seal according to claim 1, characterized in that: A protrusion is provided at one end of the bottom of the wedge block (18) close to the feeding driving cylinder (13), and an arc surface is provided between the protrusion and the bottom of the wedge block (18).

6. The automatic punching device for follow-up feeding applied to the lip of a seal according to claim 1, characterized in that: The lower part of the frame (15) is an n-shaped structure, and the anvil mounting block (17) is rotatably mounted between two side plates of the n-shaped structure.

7. The automatic punching device for follow-up feeding applied to the lip of a seal according to claim 6, characterized in that: An oblong groove (113) is provided on the outer wall of the n-shaped structural side plate at the lower part of the frame (15), a plunger mounting seat (114) is installed in the oblong groove (113) by means of bolts, and a spring plunger (110) is fixed on the plunger mounting seat (114).

8. The automatic punching device for follow-up feeding applied to the lip of a seal according to claim 6, characterized in that: The lower part of the side plate of the n-shaped structure at the lower part of the frame (15) is detachably mounted on the side wall of the moving seat (14) by means of bolts.

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