A segment punching machine for automobile sealing strips

Abstract

The invention discloses a segmenting punching machine for automobile sealing strips, which belongs to the field of automobile sealing strip processing, and comprises a segmenting cylinder, one side of which is provided with an active cavity; and further comprises a straightening component, the straightening component comprises an active block contacting and arranged in the active cavity, a sliding column is slidably installed in one side of the active block, a telescopic spring is fixedly installed between the sliding column and the inner cavity wall of the active block, an arc block is fixedly installed at one end of the sliding column away from the active block, the arc block is placed in the inner cavity of the segmenting cylinder and is contacted with the inner cavity wall of the segmenting cylinder; the situation that the previous extrusion fixing and straightening methods easily cause the sealing strip to be deformed and stretched can be avoided, the accuracy of the segmenting size is improved under the premise of avoiding damage to the sealing strip, the defective rate can be effectively reduced, and unnecessary losses can be avoided, thereby effectively improving the quality and performance of the sealing strip.

Description

Technical Field

[0001] The invention relates to the field of automobile sealing strip processing, and more specifically to a segment punching and cutting machine for automobile sealing strips. Background Art

[0002] Automobile sealing strips are rubber products installed on car doors, hoods, trunk lids and windows. They mainly play a sealing role. They have good elasticity, weather resistance and anti-aging properties, and can be used for a long time under different climatic conditions without being easily damaged. During the production process of sealing strips, in a mass production environment, the sealing strip materials need to be accurately cut according to preset shapes and sizes to meet the needs of the automobile manufacturing industry for sealing strips.

[0003] After production and molding, the sealing strip is usually in the shape of a long strip. For fixed-section punching, the long strip of sealing strip material is usually cut into fixed sections according to the predetermined length and shape to ensure that each sealing strip component can accurately match the requirements of the corresponding part of the vehicle.

[0004] However, during the segment punching process, since the sealing strip is made of rubber material, it will bend due to its own elastic properties when placed horizontally or vertically. In order to deal with this situation, the method of extrusion fixing and straightening is usually adopted to prevent it from bending. However, extrusion can easily cause the sealing strip to deform and damage its own elastic function, while straightening can easily cause the sealing strip to be stretched, resulting in inconsistent dimensions, reducing the accuracy of segmentation, and increasing the defective rate, all of which will affect the quality and performance of the sealing strip. Summary of the invention

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a segmentation punching machine for automobile sealing strips, which can avoid the situation in which the previous extrusion fixing and straightening methods easily lead to deformation and elongation of the sealing strips, improve the accuracy of the segmentation size while avoiding damage to the sealing strips, effectively reduce the defective rate, and avoid unnecessary losses, thereby effectively improving the quality and performance of the sealing strips.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] A segmentation punching machine for automobile sealing strips comprises a segmentation cylinder, one side of which is provided with an active cavity;

[0008] Also includes:

[0009] A straightening component, the straightening component includes a movable block arranged in contact with the movable cavity, a sliding column is slidably installed in one side of the movable block, a telescopic spring is fixedly installed between the sliding column and the inner cavity wall of the movable block, an arc block is fixedly installed on the end of the sliding column away from the movable block, the arc block is placed in the inner cavity of the fixed section cylinder and is arranged in contact with the inner cavity wall of the fixed section cylinder, guide shafts are fixedly installed on the front and rear sides of the movable block, and guide grooves matching the guide shafts are opened on the inner cavity wall of the movable cavity, and a pre-clamping component is arranged on the lower side of the movable block.

[0010] Furthermore, the pre-clamping assembly includes a fixed plate arranged at the lower side of the movable block, the fixed plate is fixedly mounted on the inner cavity wall of the movable cavity, and the fixed plate is located at the lowermost side of the inner cavity wall of the movable cavity, a pull rod is slidably mounted on the fixed plate, a clamping plate is fixedly mounted on one end of the pull rod, the clamping plate is slidably mounted on the inner cavity wall of the movable cavity, a return spring is fixedly mounted between the clamping plate and the fixed plate, a semicircular block is fixedly mounted on the top of the clamping plate, a triangular block is arranged on the side of the semicircular block away from the fixed plate, and the triangular block is fixedly mounted to the sliding column;

[0011] A base is fixedly installed at the bottom of the segmenting cylinder, a support plate is fixedly installed on one side of the top of the base, a cylinder is fixedly installed on one side of the support plate, a push plate is fixedly installed on the output end of the cylinder, the push plate is slidably installed with the top of the base, a punching knife is fixedly installed on one side of the push plate close to the segmenting cylinder, and a punching groove compatible with the punching knife is opened on the side wall and the inner cavity of the segmenting cylinder.

[0012] Furthermore, a movable opening is provided at the top of the base, and a slide is slidably installed in the inner cavity of the movable opening. The slide is arranged in contact with the bottom of the segmenting cylinder. The inner cavity of the segmenting cylinder is a combination of a semicircle and a square. The slide is provided with a discharge port that is compatible with the semicircular cavity side of the segmenting cylinder, and the slide is fixedly installed with the push plate.

[0013] Furthermore, cutting knives are provided on the upper and lower sides of the punching groove in the inner cavity of the fixed section cylinder, and the two groups of cutting knives are slidably installed with the inner cavity of the fixed section cylinder, a pressure plate is fixedly installed on the top of the upper cutting knife, and a tooth plate 1 is fixedly installed on the bottom of the pressure plate, and a tooth plate 2 is slidably installed on the outer side of the fixed section cylinder, and the tooth plate 2 is fixedly installed with the lower cutting knife, and a gear is directly meshed with the tooth plate 1 and the tooth plate 2, and the gear is rotatably installed with the fixed section cylinder.

[0014] Furthermore, an elastic spring is fixedly installed at the bottom of the tooth plate 1, a mounting plate is fixedly installed at the bottom end of the elastic spring, and the mounting plate is fixedly installed to the outer wall of the fixed section cylinder.

[0015] Furthermore, magnet blocks are fixedly mounted on the upper inner cavity of the movable cavity and the front and rear side walls of the movable block, and two adjacent groups of magnet blocks will be magnetically attracted together when they come into contact.

[0016] Furthermore, a top seat is fixedly mounted on the top of the support plate, a conical cylinder is fixedly mounted on one side of the bottom of the top seat, and the conical cylinder is located directly above the semicircular cavity of the fixed section cylinder.

[0017] Furthermore, the diameter of the guide shaft is greater than the height of the punching groove.

[0018] Furthermore, the reset spring is in a compressed state in its initial state, the elastic force of the telescopic spring is greater than the elastic force of the reset spring, and the tops of the sliding column and the arc block are both arranged in an oblique shape.

[0019] Furthermore, the distance between the discharge port and the same side of the semicircular cavity of the stator cylinder is equal to the distance between the punching knife and the punching groove on the inner cavity of the stator cylinder.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] (1) In this solution, by pulling the movable block upward, the clamping plate will automatically elastically fix the bottom end of the sealing strip. Through the cooperation of the telescopic spring and the arc block, the upward movement can achieve the straightening of the curved sealing strip in the segmentation tube. The straightened sealing strip can be segmented by moving the punching knife, avoiding the deformation and elongation of the sealing strip caused by the previous extrusion fixation and straightening methods. The accuracy of the segmentation size is improved while avoiding damage to the sealing strip, which can effectively reduce the defective rate and avoid unnecessary losses, thereby effectively improving the quality and performance of the sealing strip.

[0022] (2) In this scheme, the cylinder pushes the push plate to move to the left, which in turn drives the punching knife and the sliding plate to move synchronously. When the punching knife cuts the sealing strip, the discharge port moves to the semicircular bottom end of the segmentation cylinder, and the clamping plate is pulled away from the bottom end of the sealing strip. The sealing strip after segmentation cutting can slide downward and be discharged through the discharge port, which plays the role of continuous feeding, segmentation cutting and rapid discharge after cutting, which can effectively improve the efficiency of mass production, significantly improve work efficiency and reduce labor costs.

[0023] (3) In this scheme, by pressing the pressure plate downward, tooth plate 1 drives the gear to rotate and tooth plate 2 moves upward. At this time, the two sets of cutting knives can move close to each other on the inner wall of the fixed section cylinder. When the cutting surfaces of the two sets of cutting knives contact the upper and lower sides of the punching knife, the sealing strip adhered to the inner wall of the fixed section cylinder due to the cutting of the punching knife can be cut and scraped off, thereby avoiding the situation that some soft sealing strip materials are easily adhered to the mold during cutting, thereby causing difficulties in cleaning waste materials. The quality of the next cutting can be effectively improved, and the quality and performance of the sealing strip can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the front side of the present invention;

[0025] Figure 2 It is a cross-sectional view of the fixed section barrel of the present invention;

[0026] Figure 3 For the present invention Figure 2 A magnified view of the structure of the middle part A;

[0027] Figure 4 It is an overall cross-sectional view of the present invention;

[0028] Figure 5 For the present invention Figure 4 A magnified view of the structure of the middle B section;

[0029] Figure 6 For the present invention Figure 4 Enlarged view of the structure of the middle C section;

[0030] Figure 7 It is an overall side view of the present invention;

[0031] Figure 8 For the present invention Figure 7 Enlarged view of the structure of part D in the middle.

[0032] Description of the numbers in the figure:

[0033] 1. Fixed section cylinder; 2. Movable cavity; 3. Movable block; 4. Guide shaft; 5. Guide groove; 6. Sliding column; 7. Telescopic spring; 8. Arc block; 9. Fixed plate; 10. Pull rod; 11. Clamp; 12. Reset spring; 13. Base; 14. Push plate; 15. Punching knife; 16. Cylinder; 17. Punching groove; 18. Support plate; 19. Top seat; 20. Semicircular block; 21. Conical cylinder; 22. Movable opening; 23. Slide plate; 24. Discharging opening; 25. Magnet block; 26. Cutting knife; 27. Tooth plate 1; 28. Tooth plate 2; 29. ​​Gear; 30. Press plate; 31. Elastic spring; 32. Mounting plate; 33. Triangular block. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0035] See also Figures 1 to 8 , a segmenting punching machine for automobile sealing strips, comprising a segmenting cylinder 1, a movable cavity 2 is provided on one side of the segmenting cylinder 1;

[0036] Also includes:

[0037] A straightening assembly includes a movable block 3 which is contactingly arranged in the movable cavity 2, a sliding column 6 is slidably installed in one side of the movable block 3, a telescopic spring 7 is fixedly installed between the sliding column 6 and the inner cavity wall of the movable block 3, an arc block 8 is fixedly installed on the end of the sliding column 6 away from the movable block 3, the arc block 8 is placed in the inner cavity of the fixed section cylinder 1 and is contactingly arranged with the inner cavity wall of the fixed section cylinder 1, guide shafts 4 are fixedly installed on the front and rear sides of the movable block 3, and guide grooves 5 which are compatible with the guide shafts 4 are opened on the inner cavity wall of the movable cavity 2, and a pre-clamping assembly is arranged on the lower side of the movable block 3.

[0038] The pre-clamping assembly includes a fixed plate 9 arranged at the lower side of the movable block 3, the fixed plate 9 is fixedly installed on the inner cavity wall of the movable cavity 2, and the fixed plate 9 is located at the lowermost side of the inner cavity wall of the movable cavity 2, a pull rod 10 is slidably installed on the fixed plate 9, a clamping plate 11 is fixedly installed at one end of the pull rod 10, the clamping plate 11 is slidably installed on the inner cavity wall of the movable cavity 2, a return spring 12 is fixedly installed between the clamping plate 11 and the fixed plate 9, a semicircular block 20 is fixedly installed on the top of the clamping plate 11, a triangular block 33 is arranged on the side of the semicircular block 20 away from the fixed plate 9, and the triangular block 33 is fixedly installed with the sliding column 6;

[0039] A base 13 is fixedly installed at the bottom of the segmenting cylinder 1, a support plate 18 is fixedly installed on one side of the top of the base 13, a cylinder 16 is fixedly installed on one side of the support plate 18, a push plate 14 is fixedly installed on the output end of the cylinder 16, the push plate 14 is slidably installed on the top of the base 13, a punching knife 15 is fixedly installed on one side of the push plate 14 close to the segmenting cylinder 1, and a punching groove 17 compatible with the punching knife 15 is opened on the side wall and the inner cavity of the segmenting cylinder 1.

[0040] First, the staff puts the bottom end of the sealing strip into the top opening of the section barrel 1. The sealing strip moves downward in the inner cavity of the section barrel 1 under its own gravity. When the bottom end of the sealing strip contacts the top of the slide plate 23, the sealing strip stops moving downward. At this time, due to its own elastic characteristics, the sealing strip is in a non-vertical state and is in a bent state in the inner cavity of the section barrel 1. When cutting the sealing strip in the inner cavity of the section barrel 1, the movable block 3 is pulled to move upward in the inner cavity of the movable cavity 2. The movable block 3 is moved in the guide shaft 4 through the guide shaft 4. The inner cavity of the groove 5 first slides obliquely upward to the left, and the movable block 3 moves while driving the sliding column 6 and the arc block 8 to move synchronously. The arc block 8 drives the triangular block 33 to move obliquely upward to the left. At this time, the movable block 3 moves out of the left side of the clamping plate 11 and away from it. Under the action of the return spring 12, the return spring 12 restores the initial state and pushes the clamping plate 11 to move to the left, so that the clamping plate 11 can automatically elastically clamp the bottom end of the sealing strip, which plays a role of pre-fixing and can effectively improve the stability of the subsequent straightening of the bent sealing strip.

[0041] After the bottom end of the sealing strip is fixed, the movable block 3 continues to be pulled to make the guide shaft 4 move along the inner cavity of the guide groove 5. When the guide shaft 4 moves from the inclined surface of the bottom end of the inner cavity of the guide groove 5 to the vertical position, the arc block 8 can gradually contact the sealing strip during the movement to the left and upward, and then the arc block 8 continues to move to the left and upward to squeeze the sliding column 6 to slide to the right in the inner cavity of the movable block 3 and squeeze the telescopic spring 7, so that the arc block 8 can elastically clamp the sealing strip. When the guide shaft 4 moves to the vertical position of the inner cavity of the guide groove 5, the movable block 3 continues to be pulled upward. The movable block 3 will drive the arc block 8 to move vertically upward through the sliding column 6, and the bottom end of the sealing strip is elastically fixed by the clamping plate 11. At this time, the arc block 8 can be moved upward to straighten the curved sealing strip in the fixed section cylinder 1. When the movable block 3 moves to When the top wall of the inner cavity of the active cavity 2 is moved, the cylinder 16 is turned on, and the extension of the output end of the cylinder 16 will push the push plate 14 to slide to the left on the top of the base 13. When the push plate 14 slides to the left, it will drive the punching knife 15 to move synchronously. The punching knife 15 will pass through the punching groove 17 on the right side wall of the segmentation cylinder 1 and enter the inner cavity of the segmentation cylinder 1 to cut the straightened sealing strip, until the left end cutting surface of the punching knife 15 enters the punching groove 17 on the inner cavity of the segmentation cylinder 1, and the sealing strip is cut. At this time, the segmented cutting of the sealing strip can be realized, avoiding the previous extrusion fixation and straightening methods that easily cause the sealing strip to be deformed and stretched. The accuracy of the segmented size is improved while avoiding damage to the sealing strip, which can effectively reduce the defective rate and avoid unnecessary losses, thereby effectively improving the quality and performance of the sealing strip.

[0042] like Figure 1As shown, a movable opening 22 is provided at the top of the base 13, and a slide plate 23 is slidably installed in the inner cavity of the movable opening 22. The slide plate 23 is arranged in contact with the bottom of the fixed section cylinder 1. The inner cavity of the fixed section cylinder 1 is a combination of a semicircle and a square. A discharge port 24 adapted to the semicircular cavity side of the fixed section cylinder 1 is provided on the slide plate 23, and the slide plate 23 is fixedly installed with the push plate 14.

[0043] When the sealing strip is cut to a fixed section, the output end of the cylinder 16 extends to push the push plate 14 to drive the punching knife 15 to move to the left, and at the same time, it also drives the slide plate 23 to move synchronously in the inner cavity of the movable opening 22. The top of the slide plate 23 is set as a smooth surface, which can reduce the friction between the slide plate 23 and the bottom end surface of the sealing strip during the sliding process, and can prevent the movement of the slide plate 23 from affecting the clamping of the clamping plate 11 on the bottom end of the sealing strip. When the left cutting surface of the punching knife 15 enters the punching groove 17 on the inner cavity of the fixed section cylinder 1, the sealing strip is completely cut. After full cutting, the slide plate 23 will drive the discharge port 24 to move into the semicircular bottom end of the segmentation cylinder 1 and match it, and then pull the pull rod 10 to drive the clamping plate 11 to move to the right. The movement of the clamping plate 11 to the right will squeeze the reset spring 12 and move away from the sealing strip. At this time, there is no clamping force, and the sealing strip after the segmentation cutting will slide down through the discharge port 24 and be discharged. When continuing to implement the next group of segmentation cutting, pull the movable block 3 to move downward. Under the gravity of each group of components on the movable block 3, it will pass through the guide shaft 4 in the guide groove 5 The inner cavity of the guide groove 5 slides downward to the initial position. At this time, the return spring 12 is in the initial state, and the triangular block 33 is located on the right side of the semicircular block 20. Then the pull rod 10 pulls the clamping plate 11 to move to the right, and the clamping plate 11 will drive the semicircular block 20 to move synchronously. When the semicircular block 20 contacts the inclined surface of the triangular block 33, it will squeeze it to move upward. The sliding column 6 will drive the movable block 3 to move upward in the inner cavity of the guide groove 5 through the guide shaft 4. A short distance vertical direction is reserved at the bottom end of the inner cavity inclined surface of the guide groove 5. When the semicircular block 20 moves to When the triangular block 33 is on the right side, the movable block 3 will drive the triangular block 33 to move downward to the left side of the clamping plate 11 through the sliding column 6, limit the clamping plate 11, and then control the cylinder 16 to drive the punching knife 15 to move to the right to the initial position. At this time, the sealing strip will slide downward in the inner cavity of the segmentation cylinder 1 again to facilitate the next set of segmentation cutting, which plays the role of continuous feeding segmentation cutting and rapid discharge after cutting, which can effectively improve the efficiency of mass production, significantly improve work efficiency and reduce labor costs.

[0044] like Figure 6 and Figure 8As shown, cutting knives 26 are provided on the upper and lower sides of the punching groove 17 in the inner cavity of the stator tube 1. The two groups of cutting knives 26 are slidably installed with the inner cavity of the stator tube 1. A pressure plate 30 is fixedly installed on the top of the upper cutting knife 26, and a tooth plate 1 27 is fixedly installed on the bottom of the pressure plate 30. A tooth plate 28 is slidably installed on the outer side of the stator tube 1. The tooth plate 28 is fixedly installed with the lower cutting knife 26. The tooth plate 1 27 is directly meshed with the tooth plate 28 and a gear 29 is installed. The gear 29 is rotatably installed with the stator tube 1.

[0045] An elastic spring 31 is fixedly installed at the bottom of the tooth plate 27, and a mounting plate 32 is fixedly installed at the bottom end of the elastic spring 31. The mounting plate 32 is fixedly installed on the outer wall of the fixed section cylinder 1.

[0046] After the punching knife 15 cuts the sealing strip in the segmentation cylinder 1, the left cutting surface of the punching knife 15 is located in the punching groove 17 of the inner cavity of the segmentation cylinder 1, and the pressure plate 30 is pressed. The pressure plate 30 will drive the upper cutting knife 26 to move downward. When the pressing plate 30 moves downward, it will drive the tooth plate 1 27 to move downward. The tooth plate 1 27 will drive the gear 29 to rotate so that the tooth plate 28 moves upward. When the tooth plate 28 moves upward, it will drive the lower cutting knife 26 to move upward. At this time, the two groups of cutting knives 26 can move close to each other on the inner cavity wall of the segmentation cylinder 1. When the cutting surfaces of the two groups of cutting knives 26 contact the upper and lower sides of the punching knife 15, the sealing strip adhered to the inner cavity wall of the segmentation cylinder 1 due to the cutting of the punching knife 15 can be cut and scraped off, avoiding the situation that some soft sealing strip materials are easy to adhere to the mold during cutting, thereby causing the waste to be difficult to clean up, which can effectively improve the quality of the next cutting, and then effectively improve the quality and performance of the sealing strip.

[0047] like Figure 2 and Figure 3 As shown, magnet blocks 25 are fixedly mounted on the upper inner part of the movable cavity 2 and the front and rear side walls of the movable block 3. When two adjacent groups of magnet blocks 25 are in contact, they will be magnetically attracted together.

[0048] A top seat 19 is fixedly mounted on the top of the support plate 18 , and a conical cylinder 21 is fixedly mounted on one side of the bottom of the top seat 19 . The conical cylinder 21 is located just above the semicircular cavity of the fixed section cylinder 1 .

[0049] When the movable block 3 is pulled to move to the top of the inner cavity of the movable chamber 2, the magnet blocks 25 on the front and rear side walls of the movable block 3 will move to the position of the magnet block 25 on the inner cavity wall of the movable chamber 2. At this time, the magnet block 25 on the movable block 3 will be magnetically attracted to the magnet block 25 on the inner cavity wall of the movable chamber 2, so that the movable block 3 can be fixed. At this time, the movable block 3 will be located above the punching groove 17 on the right side wall of the fixed section cylinder 1, so that the punching knife 15 can cut the sealing strip in a straightened state. The movable block 3 is pulled downward to move the magnet block 25 thereon away from the magnet block 25 in the inner cavity of the movable chamber 2. At this time, there is no magnetic attraction, and the movable block 3 will slide down to the initial position under its own gravity.

[0050] When placing the sealing strip into the splint 11, first lift the long strip of sealing strip, and then place the bottom end of the sealing strip into the conical tube 21 through the placement port at the top of the top seat 19. Through the setting of the conical tube 21, the bottom end of the sealing strip can be guided so that the bottom end of the sealing strip can directly slide into the top end of the fixed section tube 1.

[0051] like Figure 3 , Figure 4 and Figure 6 As shown, the diameter of the guide shaft 4 is greater than the height of the punched groove 17 .

[0052] The return spring 12 is in a compressed state in its initial state, the elastic force of the telescopic spring 7 is greater than the elastic force of the return spring 12, and the tops of the sliding column 6 and the arc block 8 are both arranged in an oblique shape.

[0053] The distance between the discharge port 24 and the same side of the semicircular cavity of the segmentation cylinder 1 is equal to the distance between the punching knife 15 and the punching groove 17 on the inner cavity of the segmentation cylinder 1 .

[0054] By setting the tops of the sliding column 6 and the arc block 8 obliquely, the bottom end of the sealing strip can enter the inner cavity of the fixed section cylinder 1 and fall into the tops of the sliding column 6 and the arc block 8, and then slide down directly. The diameter of the guide shaft 4 is larger than the height of the punching groove 17. When the guide shaft 4 passes through the punching groove 17 in the inner cavity of the active cavity 2, the inner cavity of the guide groove 5 will not be affected when sliding up and down at this position.

[0055] Working principle: First, fix the base 13 to the position below it where the distance of the fixed-section cutting sealing strip can be discharged, then lift the long strip sealing strip, and then put the bottom end of the sealing strip into the conical cylinder 21 through the placement port on the top of the top seat 19. The bottom end of the sealing strip will slide through the conical cylinder 21 to the bottom end of the inner cavity of the fixed-section cylinder 1, and then pull the movable block 3 to move upward along the inner cavity of the guide groove 5. After the triangular block 33 is away from the semicircular block 20, the reset spring 12 will push the clamping plate 11 to squeeze the bottom end of the sealing strip. During the upward movement of the movable block 3, the curved sealing strip will be pressed by the cooperation of the arc block 8 and the telescopic spring 7. Straighten it upwards. When the movable block 3 moves to the top of the inner cavity of the movable cavity 2, it will be fixed by magnetic attraction through the magnet block 25. Then the cylinder 16 will be turned on. The cylinder 16 will drive the punching knife 15 and the slide plate 23 to move to the left through the push plate 14. The punching knife 15 can be used to cut the straightened sealing strip. The cut sealing strip will directly fall out through the discharge port 24 and be discharged. If it does not fall out, the cut sealing strip is adhered to the inner cavity wall of the fixed section cylinder 1. The pressing plate 30 is pressed to move downward. The two sets of cutting knives 26 can be moved close to each other through the gear 29, so that the sealing strip adhered to the inner cavity wall of the fixed section cylinder 1 can be cut and scraped off.

[0056] The above are only preferred specific embodiments of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and improved concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A segmenting punching machine for automobile sealing strips, comprising a segmenting cylinder (1), wherein a movable cavity (2) is provided on one side of the segmenting cylinder (1); Features: Also includes: A straightening component, the straightening component comprises a movable block (3) contacting and arranged in the movable cavity (2), a sliding column (6) is slidably installed in one side of the movable block (3), a telescopic spring (7) is fixedly installed between the sliding column (6) and the inner cavity wall of the movable block (3), an arc block (8) is fixedly installed at one end of the sliding column (6) away from the movable block (3), the arc block (8) is placed in the inner cavity of the fixed section cylinder (1) and is contacted with the inner cavity wall of the fixed section cylinder (1), guide shafts (4) are fixedly installed on the front and rear sides of the movable block (3), the inner cavity wall of the movable cavity (2) is provided with guide grooves (5) adapted to the guide shafts (4), and a pre-clamping component is arranged on the lower side of the movable block (3).

2. The automotive sealing strip segment punching machine according to claim 1, characterized in that: The pre-clamping assembly comprises a fixed plate (9) arranged at the lower side of the movable block (3), the fixed plate (9) is fixedly mounted on the inner cavity wall of the movable cavity (2), and the fixed plate (9) is located at the lowermost side of the inner cavity wall of the movable cavity (2), a pull rod (10) is slidably mounted on the fixed plate (9), a clamping plate (11) is fixedly mounted on one end of the pull rod (10), the clamping plate (11) is slidably mounted on the inner cavity wall of the movable cavity (2), a return spring (12) is fixedly mounted between the clamping plate (11) and the fixed plate (9), a semicircular block (20) is fixedly mounted on the top of the clamping plate (11), a triangular block (33) is arranged on the side of the semicircular block (20) away from the fixed plate (9), and the triangular block (33) is fixedly mounted on the sliding column (6); A base (13) is fixedly mounted on the bottom of the segmenting cylinder (1), a support plate (18) is fixedly mounted on one side of the top of the base (13), a cylinder (16) is fixedly mounted on one side of the support plate (18), a push plate (14) is fixedly mounted on the output end of the cylinder (16), the push plate (14) is slidably mounted on the top of the base (13), a punching knife (15) is fixedly mounted on one side of the push plate (14) close to the segmenting cylinder (1), and a punching groove (17) adapted to the punching knife (15) is provided on the side wall and the inner cavity of the segmenting cylinder (1).

3. The segment punching machine for automobile sealing strips according to claim 2, characterized in that: The top of the base (13) is provided with a movable opening (22), the inner cavity of the movable opening (22) is slidably provided with a slide plate (23), the slide plate (23) is arranged in contact with the bottom of the segmentation barrel (1), the inner cavity of the segmentation barrel (1) is a combination of a semicircular and a square, the slide plate (23) is provided with a discharge port (24) adapted to the semicircular cavity side of the segmentation barrel (1), and the slide plate (23) is fixedly installed with the push plate (14).

4. The automotive sealing strip segment punching machine according to claim 1, characterized in that: Cutting knives (26) are provided on both upper and lower sides of the punching groove (17) in the inner cavity of the segmentation cylinder (1). Two groups of the cutting knives (26) are slidably mounted in the inner cavity of the segmentation cylinder (1). A pressure plate (30) is fixedly mounted on the top of the upper cutting knife (26). A tooth plate 1 (27) is fixedly mounted on the bottom of the pressure plate (30). A tooth plate 2 (28) is slidably mounted on the outer side of the segmentation cylinder (1). The tooth plate 2 (28) is fixedly mounted on the lower cutting knife (26). A gear (29) is directly meshed between the tooth plate 1 (27) and the tooth plate 2 (28). The gear (29) is rotatably mounted on the segmentation cylinder (1).

5. The segment punching machine for automobile sealing strips according to claim 4, characterized in that: An elastic spring (31) is fixedly mounted on the bottom of the tooth plate 1 (27), a mounting plate (32) is fixedly mounted on the bottom end of the elastic spring (31), and the mounting plate (32) is fixedly mounted on the outer wall of the fixed section cylinder (1).

6. The segment punching machine for automobile sealing strips according to claim 1, characterized in that: Magnet blocks (25) are fixedly mounted on the upper inner part of the movable cavity (2) and the front and rear side walls of the movable block (3), and two adjacent groups of magnet blocks (25) are magnetically attracted together when they come into contact.

7. The segment punching machine for automobile sealing strips according to claim 2, characterized in that: A top seat (19) is fixedly mounted on the top of the support plate (18), and a conical cylinder (21) is fixedly mounted on one side of the bottom of the top seat (19). The conical cylinder (21) is located directly above the semicircular cavity of the fixed section cylinder (1).

8. The segment punching machine for automobile sealing strips according to claim 2, characterized in that: The diameter of the guide shaft (4) is greater than the height of the punching groove (17).

9. The segment punching machine for automobile sealing strips according to claim 2, characterized in that: The reset spring (12) is in a compressed state in its initial state, the elastic force of the telescopic spring (7) is greater than the elastic force of the reset spring (12), and the tops of the sliding column (6) and the arc block (8) are both arranged in an oblique shape.

10. The segment punching machine for automobile sealing strips according to claim 3, characterized in that: The distance between the discharge port (24) and the same side of the semicircular cavity of the segmentation cylinder (1) is equal to the distance between the punching knife (15) and the punching groove (17) on the inner cavity of the segmentation cylinder (1).

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