Rubber sealing strip punching equipment

Abstract

The invention relates to rubber sealing strip punching equipment, in particular to the technical field of rubber product processing equipment. The punching device comprises a workbench, a traction mechanism, a first mounting plate, a double-curved-bar mechanism, a sliding rail and a punching mechanism, the first mounting plate is arranged on the top face of the workbench, the double-curved-bar mechanism for driving the punching mechanism to move up and down in a reciprocating mode is mounted on the first mounting plate, the sliding rail is mounted on the double-curved-bar mechanism, and the double-curved-bar mechanism is arranged on the sliding rail. The punching mechanism is installed on the sliding rail, a traditional multi-connecting-rod structure is replaced with a double-curved-rod mechanism, the number of parts is reduced by 30%, the assembling efficiency is improved, the inertia force is counteracted through the symmetrical design of double curved rods, vibration noise is reduced, the structure is simplified through belt transmission, and the maintenance cost is low; the requirements for different hole diameters, hole depths and intervals are met through the three-dimensional adjusting function, and machining specifications can be rapidly switched without replacing parts.

Description

Technical Field

[0001] The present invention relates to the technical field of rubber product processing equipment, and particularly to a punching device for rubber sealing strips. Background Art

[0002] At present, the online punching of rubber strips in the market mainly adopts a single crank structure, which drives a punching gun to reciprocate up and down to achieve punching. This single crank structure needs to cooperate with a multi-link mechanism to realize motion conversion, with a large number of components, difficult assembly, relatively complex structure and many motion structures. When the crank rotates at high speed, mechanical vibration is severe, generating relatively large noise. The punching pitch is achieved by adjusting the length of the crank arm, which requires shutting down the machine to disassemble parts, making the equipment debugging inconvenient, and unable to achieve rapid switching of different punching pitches for multiple products. Summary of the Invention

[0003] (1) Technical Solution

[0004] To solve the above technical problems, the present invention provides a punching device for rubber sealing strips, including a workbench, a traction mechanism, a first mounting plate, a double-crank mechanism, a slide rail, and a punching mechanism. The first mounting plate is provided on the top surface of the workbench. The double-crank mechanism for driving the punching mechanism to reciprocate up and down is installed on the first mounting plate. The slide rail is installed on the double-crank mechanism. The punching mechanism is installed on the slide rail and slides left and right along the slide rail. A plurality of fixing holes for fixing the punching mechanism are provided on the slide rail. The traction mechanism for conveying and pulling the sealing strip is provided on the top surface of one side of the workbench. A pair of guide rollers are installed at both the inlet and outlet of the traction mechanism.

[0005] Preferably, the traction mechanism includes a first roller path and a second roller path arranged in parallel up and down. The rollers in the first roller path and the second roller path are arranged in one-to-one correspondence, and the rollers are driven to rotate by a driving motor.

[0006] Preferably, the double-crank mechanism includes two symmetrically rotatably installed rotating shafts on the first mounting plate, two first belt pulleys, two crank bars, a connecting rod, a rotating motor, a second belt pulley, and a connecting belt. One end of the rotating shaft passes through the first mounting plate and is fixedly connected with the first belt pulley. The other end of the rotating shaft is connected with one end of the crank bar. The connecting rod is connected between the other ends of the two crank bars. The slide rail is horizontally installed on the connecting rod. The rotating motor is installed on the workbench corresponding to the middle of the two first belt pulleys. The output shaft of the rotating motor is fixedly connected with the second belt pulley. The two first belt pulleys and the second belt pulley are connected by the connecting belt.

[0007] Preferably, the punching mechanism includes a slider, a second mounting plate, a punching gun, a height adjustment component, and a front-back displacement adjustment component. The slider is slidably connected to the slide rail. A connection hole is provided on the slider. The slider is fixed on the slide rail through the cooperation between the bolt, the fixing hole, and the connection hole. The second mounting plate is fixed on the slider. The height adjustment component for driving the punching gun to achieve height change is installed on the upper part of the second mounting plate. The bottom of the height adjustment component is connected to the front-back displacement adjustment component for driving the punching gun to achieve front-back displacement change.

[0008] Preferably, the height adjustment component includes a fixed block, a first screw rod, a first rotating handle, a lifting plate, a first guide rod, and a first scale. The fixed block is fixed on the second mounting plate. A connecting plate is provided directly above the fixed block. The first rotating handle is provided at one end of the first screw rod. The other end of the first screw rod penetrates through the connecting plate, the fixed block, and is threadedly connected to the top of the lifting plate. The first guide rods penetrating through the fixed block are connected between the four corners of the bottom of the connecting plate and the top of the lifting plate. A first scale is provided between the connecting plate and the lifting plate. The position where the first screw rod contacts the fixed block is threadedly connected.

[0009] Preferably, the front-back displacement adjustment component includes a fixed plate, a second screw rod, a second rotating handle, a moving block, a second guide rod, and a second scale. Two fixed plates are connected to the bottom of the lifting plate. The second rotating handle is provided at one end of the second screw rod. The other end of the second screw rod penetrates through one of the fixed plates and is threadedly connected to one end of the moving block. A bracket for installing the punching gun is provided on one side of the moving block. The second guide rods penetrating through the moving block are connected between the four corners of the two fixed plates. The second scale is horizontally provided on one side of the lifting plate.

[0010] Preferably, a positioning block for positioning the sealing strip is provided on the workbench corresponding to one side of the inlet of the traction mechanism.

[0011] Preferably, a frame is provided on the top surface of the workbench, and a controller and a human-machine interaction interface are installed on the frame.

[0012] (2) Beneficial effects

[0013] The present invention provides a punching device for rubber sealing strips. Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The hyperbolic rod mechanism replaces the traditional multi-link structure, reducing the number of parts by 30% and improving the assembly efficiency;

[0015] 2. The symmetrical design of the double-bend lever offsets the inertial force and reduces vibration and noise; the belt drive simplifies the structure and has low maintenance costs;

[0016] 3. The three-dimensional adjustment function supports different hole diameters, hole depths and spacing requirements, and the processing specifications can be quickly switched without replacing parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a stereogram of the present invention.

[0018] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0019] Figure 3 It is a three-dimensional view of the traction mechanism of the present invention when it is cut away.

[0020] Figure 4 It is a three-dimensional diagram of the back side of the present invention.

[0021] Figure 5 It is a three-dimensional diagram of the hyperbolic lever mechanism, the slide rail and the punching mechanism of the present invention when they are connected.

[0022] The accompanying drawings are marked as follows: 1-working table, 2-frame, 3-traction mechanism, 31-first roller, 32-second roller, 33-roller, 34-driving motor, 4-first mounting plate, 5-double crank mechanism, 51-rotating shaft, 52-first pulley, 53-crank rod, 54-connecting rod, 55-rotating motor, 56-second pulley, 57-connecting belt, 6-slide rail, 61-fixing hole, 7-punching mechanism, 71-slider, 72-second mounting plate, 7 3-punching gun, 74-height adjustment assembly, 741-fixed block, 742-first screw, 743-first rotating handle, 744-lifting plate, 745-first guide rod, 746-connecting plate, 747-first scale, 75-front and rear displacement adjustment assembly, 751-fixed plate, 752-second screw, 753-second rotating handle, 754-moving block, 755-second guide rod, 756-second scale, 8-positioning block, 9-guide roller. DETAILED DESCRIPTION

[0023] The present invention is further described in conjunction with the accompanying drawings and embodiments.

[0024] like Figures 1 to 5As shown in the figure, a punching device for a rubber sealing strip according to the present invention includes a workbench 1, a traction mechanism 3, a first mounting plate 4, a double-curved rod mechanism 5, a slide rail 6, and a punching mechanism 7. The first mounting plate 4 is provided on the top surface of the workbench 1. The double-curved rod mechanism 5 for driving the punching mechanism 7 to perform up-and-down reciprocating motion is installed on the first mounting plate 4. The slide rail 6 is installed on the double-curved rod mechanism 5. The punching mechanism 7 is installed on the slide rail 6 and slides left and right along the slide rail 6. A number of fixing holes 61 for fixing the punching mechanism 7 are provided on the slide rail 6. The slide rail 6 is horizontally fixed on the connecting rod 54 of the double-curved rod mechanism 5. The punching mechanism 7 slides left and right along the slide rail through the slider 71 and locks its position through the fixing holes 61 to realize the adjustment of the multi-station spacing. On one side of the top surface of the workbench 1, the traction mechanism 3 for conveying and pulling the sealing strip is provided. A pair of guide rollers 9 are installed at both the inlet and outlet of the traction mechanism 3 to ensure the stable conveying of the sealing strip.

[0025] The traction mechanism 3 includes a first roller path 31 and a second roller path 32 arranged in parallel up and down. The rollers 33 in the first roller path 31 and the second roller path 32 are arranged in one-to-one correspondence. The rollers 33 are driven to rotate by a driving motor 34, and the sealing strip is clamped by the upper and lower roller paths and moves at a constant speed to prevent the sealing strip from shifting during punching.

[0026] The double-curved rod mechanism 5 includes two rotating shafts 51 symmetrically and rotatably installed on the first mounting plate 4, two first belt pulleys 52, two curved rods 53, a connecting rod 54, a rotating motor 55, a second belt pulley 56, and a connecting belt 57. One end of the rotating shaft 51 passes through the first mounting plate 4 and is fixedly connected with the first belt pulley 52. The other end of the rotating shaft 51 is connected to one end of the curved rod 53. The connecting rod 54 is connected between the other ends of the two curved rods 53. The slide rail 6 is horizontally installed on the connecting rod 54. The rotating motor 55 is installed on the workbench 1 corresponding to the middle of the two first belt pulleys 52. The output shaft of the rotating motor 55 is fixedly connected with the second belt pulley 56. The two first belt pulleys 52 and the second belt pulley 56 are connected by the connecting belt 57. The rotating motor 55 drives the two first belt pulleys 52 through the second belt pulley 56 and the connecting belt 57, driving the two curved rods 53 to swing synchronously. The connecting rod 54 connects the free ends of the two curved rods 53, converting the rotational motion into the vertical reciprocating motion of the slide rail 6;

[0027] The punching mechanism 7 includes a slider 71, a second mounting plate 72, a punching gun 73, a height adjustment component 74, and a front-back displacement adjustment component 75. The slider 71 is slidably connected to the slide rail 6. The slider 71 is provided with a connection hole, and the slider 71 is fixed on the slide rail 6 through the cooperation between the bolt, the fixing hole 61 and the connection hole. The second mounting plate 72 is fixed on the slider 71. The height adjustment component 74 for driving the punching gun 73 to achieve height change is installed on the upper part of the second mounting plate 72. The bottom of the height adjustment component 74 is connected to the front-back displacement adjustment component 75 for driving the punching gun 73 to achieve front-back displacement change.

[0028] The height adjustment component 74 includes a fixed block 741, a first screw rod 742, a first rotating handle 743, a lifting plate 744, a first guide rod 745, and a first scale 747. The fixed block 741 is fixed on the second mounting plate 72. A connecting plate 746 is provided directly above the fixed block 741. One end of the first screw rod 742 is provided with the first rotating handle 743. The other end of the first screw rod 742 penetrates through the connecting plate 746, the fixed block 741 and is threadedly connected to the top of the lifting plate 744. The bottom of the four corners of the connecting plate 746 and the top of the lifting plate 744 are connected with the first guide rod 745 penetrating through the fixed block 741. A first scale 747 is provided between the connecting plate 746 and the lifting plate 744. The position where the first screw rod 742 contacts the fixed block 741 is threadedly connected. By rotating the first rotating handle 743, the first screw rod 742 is driven to drive the lifting plate 744 to move vertically along the first guide rod 745, and the first scale 747 assists in precisely adjusting the punching depth.

[0029] The front-back displacement adjustment component 75 includes a fixed plate 751, a second screw rod 752, a second rotating handle 753, a moving block 754, a second guide rod 755, and a second scale 756. Two fixed plates 751 are connected to the bottom of the lifting plate 744. One end of the second screw rod 752 is provided with the second rotating handle 753. The other end of the second screw rod 752 penetrates through one of the fixed plates 751 and is threadedly connected to one end of the moving block 754. A bracket for installing the punching gun 73 is provided on one side of the moving block 754. The second guide rod 755 penetrating through the moving block 754 is connected between the four corners of the two fixed plates 751. The second scale 756 is horizontally provided on one side of the lifting plate 744. By rotating the second rotating handle 753 to drive the second screw rod 752, the moving block 754 is pushed to move horizontally along the second guide rod 755, and the front-back position of the punching gun 73 is adjusted in combination with the second scale 756.

[0030] On the workbench 1 corresponding to the inlet side of the traction mechanism 3, there is a positioning block 8 for positioning the sealing strip, positioning the sealing strip during the conveying process, avoiding deviation during the punching process of the sealing strip, and improving the accuracy of punching.

[0031] On the top surface of the workbench 1, there is a frame 2, and a controller and a human-machine interface are installed on the frame 2 to realize parameter setting and automatic control.

[0032] Workflow:

[0033] Parameter setting: Input parameters such as punching spacing and depth through the human-machine interface, and the controller automatically calculates the traction speed and punching frequency;

[0034] Sealing strip positioning: After being corrected by the positioning block 8, the sealing strip enters the traction mechanism 3 and is clamped and conveyed at a constant speed by the upper and lower rollers 33;

[0035] Punching execution:

[0036] The rotating motor 55 drives the hyperbolic rod mechanism 5 to drive the punching gun 73 to move up and down at a set frequency;

[0037] The punching gun 73 completes precise punching on the surface of the sealing strip, and the guiding roller 9 prevents conveying deviation;

[0038] Quick die change:

[0039] Lateral spacing adjustment: Loosen the bolt of the slider 71, slide along the slide rail 6 to the target fixing hole 61 and then lock it;

[0040] Height / front-back adjustment: Observe through the first scale 747 and the second scale 756, and rotate the first turning handle 743 and the second turning handle 753 to finely adjust the position of the punching gun.

[0041] The above-described embodiments only represent the preferred embodiments of the present invention, and their descriptions are relatively specific and detailed. However, the present invention is not limited to these embodiments. It should be noted that for those of ordinary skill in the art. Without departing from the spirit of the present invention, any improvements made fall within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the appended claims.

Claims

1. A rubber sealing strip punching device, characterized in that: The invention comprises a workbench (1), a traction mechanism (3), a first mounting plate (4), a hyperbolic bar mechanism (5), a slide rail (6), and a punching mechanism (7). The first mounting plate (4) is provided on the top surface of the workbench (1). The hyperbolic bar mechanism (5) for driving the punching mechanism (7) to achieve up and down reciprocating motion is installed on the first mounting plate (4). The slide rail (6) is installed on the hyperbolic bar mechanism (5). The punching mechanism (7) is installed on the slide rail (6). The punching mechanism (7) slides left and right along the slide rail (6). The slide rail (6) is provided with a plurality of fixing holes (61) for fixing the punching mechanism (7). The traction mechanism (3) for conveying and traction of the sealing strip is provided on the top surface of one side of the workbench (1). A pair of guide rollers (9) are installed at the inlet and outlet of the traction mechanism (3).

2. A rubber sealing strip punching device according to claim 1, characterized in that: The traction mechanism (3) comprises a first roller conveyor (31) and a second roller conveyor (32) which are arranged in parallel up and down, the rollers (33) in the first roller conveyor (31) and the second roller conveyor (32) are arranged in a one-to-one correspondence, and the rollers (33) are driven to rotate by a driving motor (34).

3. The rubber sealing strip punching device according to claim 1, characterized in that: The double crank mechanism (5) comprises two rotating shafts (51) symmetrically mounted on the first mounting plate (4), two first pulleys (52), two crank rods (53), a connecting rod (54), a rotating motor (55), a second pulley (56), and a connecting belt (57). One end of the rotating shaft (51) passes through the first mounting plate (4) and is fixedly connected to the first pulley (52). The other end of the rotating shaft (51) is connected to one end of the crank rod (53). The connecting rod (54) is connected between the other ends of the two crank rods (53). The slide rail (6) is horizontally mounted on the connecting rod (54). The rotating motor (55) is mounted on the workbench (1) corresponding to the middle of the two first pulleys (52). The second pulley (56) is fixedly connected to the output shaft of the rotating motor (55). The two first pulleys (52) and the second pulley (56) are connected by the connecting belt (57).

4. The rubber sealing strip punching device according to claim 1, characterized in that: The punching mechanism (7) comprises a slider (71), a second mounting plate (72), a punching gun (73), a height adjustment component (74), and a front-rear displacement adjustment component (75); the slider (71) is slidably connected to the slide rail (6); a connecting hole is provided on the slider (71); the slider (71) is fixed to the slide rail (6) by means of a bolt, the fixing hole (61) and the connecting hole; the slider (71) is fixed to the second mounting plate (72); the height adjustment component (74) for driving the punching gun (73) to achieve a height change is installed on the upper part of the second mounting plate (72); the front-rear displacement adjustment component (75) for driving the punching gun (73) to achieve a front-rear displacement change is connected to the bottom of the height adjustment component (74) 5. A rubber sealing strip punching device according to claim 4, characterized in that: The height adjustment assembly (74) comprises a fixed block (741), a first screw rod (742), a first rotating handle (743), a lifting plate (744), a first guide rod (745), and a first scale (747). The fixed block (741) is fixed on the second mounting plate (72). A connecting plate (746) is provided just above the fixed block (741). The first rotating handle (743) is provided on one end of the first screw rod (742). The first screw rod (742) is provided with a first rotating handle (743) at the other end. The first guide rod (745) passes through the connecting plate (746), the fixing block (741) and is threadedly connected to the top of the lifting plate (744); the first guide rod (745) passing through the fixing block (741) is connected between the four corner bottoms of the connecting plate (746) and the top of the lifting plate (744); the first scale (747) is provided between the connecting plate (746) and the lifting plate (744); and the first screw rod (742) is threadedly connected to the position where it contacts the fixing block (741).

6. A rubber sealing strip punching device according to claim 5, characterized in that: The front-rear displacement adjustment component (75) comprises a fixed plate (751), a second screw rod (752), a second rotating handle (753), a moving block (754), a second guide rod (755), and a second scale (756); two fixed plates (751) are connected to the bottom of the lifting plate (744); one end of the second screw rod (752) is provided with the second rotating handle (753); the other end of the second screw rod (752) penetrates one of the fixed plates (751) and is threadedly connected to one end of the moving block (754); one side of the moving block (754) is provided with a bracket for mounting the punching gun (73); the second guide rod (755) penetrating the moving block (754) is connected between the four corners of the two fixed plates (751); and the second scale (756) is transversely provided on one side of the lifting plate (744).

7. The rubber sealing strip punching device according to claim 1, characterized in that: A positioning block (8) for positioning the sealing strip is provided on the workbench (1) corresponding to the inlet side of the traction mechanism (3).

8. The rubber sealing strip punching device according to claim 1, characterized in that: A frame (2) is provided on the top surface of the workbench (1), and a controller and a human-machine interaction interface are installed on the frame (2).

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