A device for punching edge holes of corrugated steel plate
By designing a punching hole device for corrugated steel sheets, the problem of low production efficiency of corrugated steel sheet bolt holes in the prior art and inability to meet the needs of multiple shapes is solved, and efficient and accurate bolts of multiple waveforms and special shapes are achieved. The punching of the hole improves the production efficiency.
Patent Information
- Application Number
- CN201911386076.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2019-12-29
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2039-12-29
AI Technical Summary
The existing corrugated steel sheet bolt hole production methods are inefficient and cannot meet the needs of multiple corrugated and special shape holes. Simple punching equipment cannot achieve automated production.
A corrugated steel plate edge punching device including a frame, a conveyor cart, a roller, a marking device, a punching device and a pressing device is designed. It can adapt to corrugated steel plates of different lengths, widths and thicknesses, and realize a variety of Punching for corrugated and special shape bolt holes, and adjustable hole diameter and hole spacing.
It realizes efficient and precise punching of corrugated steel plates, ensuring that the accuracy of adjacent hole distances is within ±0.2mm and the accumulated accuracy is within ±0.5mm, meeting the production needs of various waveforms and shapes, improving production efficiency and reducing Manual operation.
Smart Images

Figure CN110976619B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a device for punching bolt holes on both sides of a steel corrugated plate, belonging to the technical field of corrugated steel plate production equipment. Background Art
[0002] Corrugated steel plate is a new type of building material. It can be used to build various buildings and to make various pipe culverts. It has a wide range of uses. Corrugated steel plates need to be connected during use, and bolt connection is an important way to connect corrugated steel plates. When corrugated steel plates are connected by bolts, side holes need to be opened on both sides of the plate, and the side holes are arranged at intervals along the length of the plate. The shapes of the plate side holes include circular holes, oblong holes, square holes, rectangular holes and other shapes. The position of the plate side holes is at the top of the outermost curved waveform of the corrugated steel plate. From the use position on both sides of the corrugated steel plate, it can be considered as a crest or a trough.
[0003] At present, the bolt holes on both sides of the corrugated steel plate are mostly made by drilling, which is too inefficient and cannot process special holes of required shapes other than circular holes. There are also a small number of simple punching equipment, which cannot achieve punching of various waveforms, hole shapes and specifications, and cannot punch automatically, which is far from meeting the needs of production development. Summary of the invention
[0004] The technical problem to be solved by the present invention is to provide a device for punching edges of corrugated steel plates. The device can adapt to corrugated steel plates of different lengths, widths and thicknesses, can punch holes in corrugated steel plates of various waveforms, and can meet the requirements for punching bolt holes of various special shapes such as circular holes, oblong holes, square holes, rectangular holes, etc. The punching position, hole diameter and hole spacing can be adjusted as needed to realize the punching operation of corrugated steel plates.
[0005] The technical solution to solve the above technical problems is:
[0006] A device for punching edges and holes of a corrugated steel plate comprises a frame, a conveying trolley and a transmission part, a roller part, a marking device, a punching device, and a material pressing device. The frame is a rectangular steel frame. The guide rails of the conveying trolley and the transmission part are installed on both sides of the upper plane of the frame. The conveying trolley and the transmission part are located above the guide rails. The conveying trolley and the transmission part are in sliding cooperation with the guide rails. The roller part is installed in the middle of the upper plane of the frame. The corrugated steel plate is placed on the roller part. The rear end of the corrugated steel plate is connected to the conveying trolley. The marking device, the punching device, and the material pressing device are installed in the front part of the upper plane of the frame. The punching device, The pressing devices are respectively arranged opposite to each other in sequence on both sides of the front plane of the frame, and the upper surfaces on both sides of the front end of the corrugated steel plate are respectively opposite to the marking device, the punching device and the pressing device on both sides, wherein there are multiple groups of punching devices, and the multiple groups of punching devices are respectively located on both sides of the plane of the frame, and multiple punching devices are arranged at intervals on each side of the frame, and the punching devices on both sides of the frame are respectively opposite to each other, and the distance between the punches of the punching devices opposite to each other on both sides of the frame is equal to the distance between the side holes on both sides of the corrugated steel plate, and the distance between the punches of the adjacent punching devices on each side of the frame is equal to the distance between the side holes on one side of the corrugated steel plate.
[0007] The above-mentioned corrugated steel plate punching hole device, the conveying trolley and the transmission part are composed of a vehicle chassis, a servo motor, a reducer, a gear, a rack, a slider, a guide rail, and a clamp. The vehicle chassis is a rectangular steel plate, the servo motor and the reducer are installed on the upper surface of the vehicle chassis, the reducer shaft passes through the vehicle chassis and is connected to the gear, the two guide rails are respectively installed on both sides of the upper plane of the frame, a rack is installed on the inner side of one guide rail, the gear is meshed with the rack, sliders are respectively welded on both sides of the lower surface of the vehicle chassis, the sliders are respectively slidably matched with the guide rails on both sides of the upper surface of the frame, the two clamps are respectively fixed on both sides of the front end of the vehicle chassis, and the two clamps are respectively clamped and connected to both sides of the rear end of the corrugated steel plate.
[0008] The above-mentioned device for punching edges of corrugated steel plates, the clamps of the conveying trolley and the transmission part include a bracket, a clamp cylinder, an upper jaw, a lower jaw, and a clamp body. The bracket is composed of a vertical plate, a lower fixed plate and an upper top plate. The vertical plate is placed vertically, and the lower fixed plate and the upper top plate are horizontally welded to the lower and upper parts of both sides of the vertical plate respectively, and the lower fixed plate is connected to the front end of the vehicle chassis by bolts. The clamp body is an upright rectangular parallelepiped, and the rear part of the clamp body is connected to the vertical plate of the bracket. The upper and lower ends of the front part of the clamp body are respectively provided with support plates protruding forward, and the clamp cylinder is fixedly connected to the plate surface of the upper support plate, and the lower jaw is placed above the plate surface of the lower support plate. The cylinder rod of the clamp cylinder passes downward through the upper support plate and is connected to the upper jaw, and the upper jaw is opposite to the lower jaw, and the corrugated steel plate is clamped between the upper jaw and the lower jaw.
[0009] The above-mentioned corrugated steel plate punching hole device, the clamp also has a sliding column and a tension spring, the sliding column is an upright column, the sliding column is fixedly connected to the front of the vertical plate, the rear part of the clamp body has an upright opening groove, the opening groove is sleeved on the sliding column, the two sides and bottom of the opening groove are respectively slidably matched with the two sides and front of the sliding column, and the upper support plate of the clamp body and the upper top plate of the bracket are tightened by a tension spring.
[0010] The above-mentioned corrugated steel plate punching hole device, the roller part includes a flat roller and a guide roller, a plurality of flat rollers are arranged in parallel in sequence and installed in the middle of the upper plane of the frame, the length direction of the flat rollers is perpendicular to the length direction of the frame, the corrugated steel plate is placed on the flat rollers, the upper plane of the flat rollers is in rolling fit with the bottom surface of the conveyed corrugated steel plate, the guide rollers are respectively installed in the middle of the frame and the front end of the frame, the guide rollers are respectively located on the outer sides of the guide rails on both sides of the frame, the roller shafts of the guide rollers are respectively vertically connected to the outer sides of the guide rails, the circumferential roller surface of the guide roller is an arc-shaped groove, the arc-shaped groove matches the arc of the corrugation of the corrugated steel plate, and the corrugations on both sides of the corrugated steel plate are embedded in the grooves of the circumferential roller surface of the guide roller.
[0011] The punching hole device of the corrugated steel plate, the marking device is composed of a marking cylinder seat, a marking cylinder, a marking head, a lower support plate, a fixed adjustment block, and an adjustment bolt. The marking cylinder seat is a U-shaped plate frame placed upright horizontally, and the opening of the U-shaped plate frame is opposite to the middle of the upper plane of the frame. The marking cylinder is fixed above the upper plate surface of the marking cylinder seat, and the lower support plate is fixed to the inner surface of the lower plate surface of the marking cylinder seat. The upper surface of the lower support plate is an arc shape, and the arc shape matches the corrugation curvature of the corrugated steel plate. The cylinder rod of the marking cylinder passes downward through the upper plate surface of the marking cylinder seat, the lower end of the cylinder rod is connected to the marking head, the lower end surface of the marking head is opposite to the plate surface of the lower support plate, the fixed adjustment block is welded on the upper plane of the frame outside the marking cylinder seat, there is an adjustment hole on the fixed adjustment block, the rear part of the adjusting bolt is located in the adjustment hole, there is a vertical long screw hole at the back of the upright plate surface of the marking cylinder seat, the front screw of the adjusting bolt is screwed in the long screw hole, and the bottom surface of the marking cylinder seat and the upper plane of the frame are in a sliding fit.
[0012] The punching hole device of the corrugated steel plate comprises a bottom plate, a punching cylinder seat, a punching cylinder, a punch, an arc-shaped punching die, a fastening bolt, and a bottom plate adjustment bolt. The bottom plate is an L-shaped plate, and the long plate surface of the L-shaped plate of the bottom plate is placed on the upper surface of the frame. The bottom plate surface has a long hole, and the fastening bolts are used to fix the bottom plate to the upper surface of the frame through the long hole. The punching cylinder seat is a U-shaped plate frame placed upright horizontally, and the opening of the U-shaped plate frame is opposite to the middle of the upper plane of the frame. The punching cylinder is fixed on the punching cylinder seat. Above the upper plate surface, the cylinder rod of the punching cylinder passes downward through the upper plate surface of the punching cylinder seat and is connected to the punch, the arc-shaped die is fixed on the inner surface of the lower plate surface of the punching cylinder seat, the punch matches the arc-shaped die, the short plate surface of the L-shaped plate of the base plate is vertical, and there is an adjustment hole on the plate surface. The rear part of the base plate adjustment bolt is located in the adjustment hole, and there is a vertical long screw hole behind the upright plate surface of the punching cylinder seat. The front screw of the base plate adjustment bolt is screwed in the long screw hole, and the bottom surface of the punching cylinder seat and the upper plane of the base plate are in a sliding fit.
[0013] The above-mentioned corrugated steel plate punching hole device has a clamping plate above the bottom plate of the punching device, and the two clamping plates are respectively located on both sides of the punching cylinder seat. Both sides of the punching cylinder seat have horizontal grooves along the length direction of the punching cylinder seat, and the two clamping plates have strip protrusions on the plate surfaces opposite to the side surfaces of the punching cylinder seat, and the strip protrusions are embedded in the horizontal grooves on both sides of the punching cylinder seat. The two clamping plates have fastening holes on their plate surfaces along the length direction, and the bottom plate surface opposite to the bottom surface of the clamping plates has corresponding screw holes, and the clamping bolts are fastened and connected with the screw holes on the bottom plate through the fastening holes of the clamping plates.
[0014] The punching hole device for the corrugated steel plate is characterized in that the lower end of the cylinder rod of the punching cylinder has a connecting thread, the punch is composed of a punch seat and a punch rod, the punch seat is located on the upper part of the punch rod, the diameter of the punch seat is larger than the punch rod, the upper end surface of the punch seat is pressed against the lower end surface of the cylinder rod, a corresponding directional hole is provided between the upper end surface of the punch seat and the lower end surface of the cylinder rod, a directional key is provided in the directional hole for directional connection, a fastening sleeve is sleeved on the outside of the punch seat, the inner wall of the fastening sleeve has a thread matching the thread at the lower end of the cylinder rod, and the sleeve at the lower end of the fastening sleeve is The barrel hole matches the diameter of the punch rod, the punch rod extends out of the fastening sleeve and faces the arc-shaped die, the arc-shaped die is embedded in the groove on the inner surface of the lower plate surface of the punching cylinder seat, the upper surface of the arc-shaped die is respectively convex arc-shaped or concave arc-shaped, the arc degree of the convex arc-shaped or concave arc-shaped matches the arc degree of the crest or trough of the corrugated steel plate, the outer wall of the arc-shaped die and the side wall of the groove on the lower plate surface of the punching cylinder seat are provided with corresponding die keyways, and the die orientation key is embedded in the die keyway to orient the hole of the arc-shaped die.
[0015] The above-mentioned device for punching edge holes of corrugated steel plate, the pressing device is composed of a pressing cylinder seat, a pressing cylinder, a pressure head, a lower support block, a pressing adjustment block, and a pressing adjustment bolt. The pressing cylinder seat is a U-shaped plate frame placed upright horizontally, the opening of the U-shaped plate frame is opposite to the middle of the upper plane of the frame, the pressing cylinder is fixed above the upper plate surface of the pressing cylinder seat, the lower support block is fixed to the inner surface of the lower plate surface of the pressing cylinder seat, the cylinder rod of the pressing cylinder passes through the upper plate surface of the pressing cylinder seat, and the lower end of the cylinder rod is connected to the pressure head The lower end face of the pressure head is opposite to the upper surface of the lower supporting block, and the lower end face of the pressure head and the upper surface of the lower supporting block are corresponding arc surfaces, and the arc surfaces match the corrugated curvature of the corrugated steel plate. The pressure adjustment block is welded on the frame plane outside the pressure cylinder seat, and there is an adjustment hole on the pressure adjustment block. The rear part of the pressure adjustment bolt is located in the adjustment hole. There is a vertical long screw hole behind the upright plate surface of the pressure cylinder seat, and the front screw of the pressure adjustment bolt is screwed in the long screw hole. The bottom surface of the pressure cylinder seat is in sliding fit with the upper plane of the frame.
[0016] The beneficial effects of the present invention are:
[0017] Guide rails are installed on both sides of the frame surface of the present invention, and the conveying trolley can move along the guide rails. The clamps at the front end of the conveying trolley clamp the rear end of the corrugated steel plate and convey it forward. The conveying distance is precisely controllable, and the punching position can be guaranteed to be accurate; rollers are installed on the surface of the frame, and the rollers roll and convey the corrugated steel plate; a marking device is installed on the front end of the plane on the frame to print marks on the corrugated steel plate; a plurality of relative punching devices are installed on both sides of the front end of the plane on the frame to punch the corrugated steel plate, and both sides of the corrugated steel plate can be punched at the same time, and the distance between adjacent punched holes can be guaranteed to be accurate; a pressing device is also installed on the side of the punching device to press the corrugated steel plate when punching; the positions of the marking device, the punching device and the pressing device are adjustable to adapt to corrugated steel plates of different specifications and ensure the accurate punching position.
[0018] The structure of the present invention is reasonable, simple and reliable, and has high control accuracy. On the basis of adjustable hole spacing, the accuracy of adjacent hole spacing is guaranteed to be within ±0.2mm, and the cumulative hole spacing accuracy is within ±0.5mm. The present invention can meet the production of punching holes of corrugated steel sheets with multiple different waveforms and various waveform positive and negative positions, and can punch out various special-shaped bolt holes such as circular holes, oblong holes, square holes, rectangular holes, etc. as needed. The present invention is easy to operate and maintain, can punch holes continuously, reduces labor, saves time, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the structure of the present invention;
[0020] Figure 2 yes Figure 1 A front view of
[0021] Figure 3 yes Figure 1 Side view of
[0022] Figure 4 yes Figure 1 A top view of
[0023] Figure 5 It is a structural diagram of the conveying trolley and the transmission part;
[0024] Figure 6 , 7 8 are a front view, a side view, and an AA cross-sectional view of the clamp;
[0025] Fig. 9 , 10 It is the front view and side view of the roller part;
[0026] Fig.11 It is a schematic diagram of the structure of the marking device;
[0027] Fig.12 , 13 , 14, 15 are a front sectional view, a side sectional view, a top view, and a partial sectional view of the punching device;
[0028] Fig.16 , 17 It is a schematic diagram of punching holes of two arc-shaped punching dies of a punching device and a corrugated steel plate;
[0029] Fig.18 It is a structural schematic diagram of the pressing device.
[0030] The markings in the figure are as follows: conveyor trolley and transmission part 1, roller part 2, marking device 3, punching device 4, pressing device 5, frame 6, corrugated steel plate 7, chassis 8, servo motor 9, reducer 10, gear 11, rack 12, slide block 13, guide rail 14, clamp 15, bracket 16, clamp cylinder 17, upper jaw 18, lower jaw 19, clamp body 20, sliding column 21, tension spring 22, flat roller 23, guide roller 24, marking cylinder seat 25, marking cylinder 26, marking The marking head 27, the lower supporting plate 28, the fixed adjustment block 29, the adjusting bolt 30, the base plate 31, the punching cylinder seat 32, the punching cylinder 33, the punch 34, the arc die 35, the fastening bolt 36, the base plate adjustment bolt 37, the clamping plate 38, the clamping bolt 39, the punch seat 40, the punch rod 41, the directional key 42, the fastening sleeve 43, the locking sleeve 44, the pressing cylinder seat 45, the pressing cylinder 46, the pressing head 47, the lower supporting block 48, the pressing adjustment block 49, the pressing adjustment bolt 50, and the die directional key 51. DETAILED DESCRIPTION
[0031] The present invention is composed of a frame 6, a conveying trolley and a transmission part 1, a roller part 2, a marking device 3, a punching device 4, and a material pressing device 5.
[0032] The invention can meet the punching production of multiple corrugated steel plates with waveforms ranging from 150×50 to 400×150, that is, by replacing some parts, the production of corrugated steel plates with various waveforms and various specifications can be changed.
[0033] Figure 1 , 2 , 3, and 4 show that the frame 6 is a rectangular steel frame, and the guide rails 14 of the conveying trolley and the transmission part 1 are installed on both sides of the upper plane of the frame 6. The conveying trolley and the transmission part 1 are located above the guide rails 14, and the conveying trolley and the transmission part 1 move forward and backward along the guide rails 14. The roller part 2 is installed in the middle of the upper plane of the frame 6, and the corrugated steel plate 7 is placed on the roller part 2. The rear end of the corrugated steel plate 7 is connected to the conveying trolley, and the conveying trolley pushes the corrugated steel plate 7 forward to punch holes.
[0034] Figure 1 , 2 , 3, and 4 show that the marking device 3 is installed on the front side of the plane on the frame 6, and is used to print marks on the corrugated steel sheet 7. Multiple sets of punching devices 4 are respectively located on both sides of the plane on the frame 6. Multiple punching devices 4 are arranged at intervals on each side of the frame 6. The punching devices 4 on both sides of the frame 6 are opposite to each other. There are six punching devices 4 shown in the figure, and there are three on each side of the frame 6. The distance between the punches 34 of the punching devices 4 on both sides of the frame 6 is equal to the distance between the side holes on both sides of the corrugated steel sheet 7. The distance between the punches 34 of the adjacent punching devices 4 on each side of the frame 6 is equal to the distance between the side holes on one side of the corrugated steel sheet 7. Multiple sets of pressing devices 5 are respectively opposite to each other on both sides of the front plane on the frame. The pressing devices 5 are located on the side of the punching devices 4 to press the corrugated steel sheet 7. There are four pressing devices 5 shown in the figure, and there are two on each side of the frame 6.
[0035] Figure 5It is shown that the conveying trolley and transmission part 1 are composed of a chassis 8, a servo motor 9, a reducer 10, a gear 11, a rack 12, a slider 13, a guide rail 14, and a clamp 15. The chassis 8 is a rectangular steel plate, and the servo motor 9 and the reducer 10 are installed on the upper surface of the chassis 8. The reducer shaft passes through the chassis 8 and is connected to the gear 11. Two guide rails 14 are respectively installed on both sides of the upper plane of the frame 6. A rack 12 is installed on the inner side of one guide rail 14. The gear 11 is meshed with the rack 12. Sliders 13 are welded on both sides of the lower surface of the chassis 8. The sliders 13 are respectively slidably matched with the guide rails 14 on both sides of the upper surface of the frame 6. Two clamps 15 are respectively fixed on both sides of the front end of the chassis 8. The two clamps 15 are respectively clamped and connected with both sides of the rear end of the corrugated steel plate 7. During operation, the servo motor 9 drives the gear 11 to rotate through the reducer 10, and the gear 11 climbs on the rack 12, driving the chassis 8, the servo motor 9, the reducer 10 and the clamp 15 to move along the guide rail 14, and the clamp 15 pushes the corrugated steel sheet 7 to move forward, and the marking device 3, the punching device 4, etc. mark and punch the corrugated steel sheet 7. The number of revolutions of the servo motor 9 is accurately controlled by the control mechanism, so that the distance moved by the corrugated steel sheet 7 meets the accurate requirements of punching.
[0036] Figure 6 , 7 8 shows that the clamp 15 is composed of a bracket 16, a clamp cylinder 17, an upper jaw 18, a lower jaw 19, a clamp body 20, a sliding column 21, and a tension spring 22.
[0037] The bracket 16 is composed of a vertical plate, a lower fixed plate and an upper plate. The vertical plate is placed vertically. The lower fixed plate and the upper plate are horizontally welded to the lower and upper parts of both sides of the vertical plate, respectively. The lower fixed plate is connected to the front end of the vehicle chassis 8 by bolts, and the upper plate is located at the upper end of the other side of the vertical plate. The sliding column 21 is a vertical column with a dovetail cross section. The sliding column 21 is fixedly connected to the front of the vertical plate. The clamp body 20 is a vertical rectangular parallelepiped. The rear of the clamp body 20 has a vertical open groove, which is a dovetail groove. The open groove is sleeved on the sliding column 21. The two sides and bottom of the open groove are respectively slidably matched with the two sides and the front of the sliding column 21. The upper end of the clamp body 20 is connected to the upper plate of the bracket 16 by a tension spring 22. The clamp body 20 can slide up and down along the sliding column 21 when the tension spring 22 is in a tensioned state. The connecting screw holes between the lower fixing plate and the chassis 8 are long holes in the left and right directions. The bracket 16 can adjust the left and right distance of the adjustment clamp 15 through the long holes to meet the adjustment of the width and wave pitch of different corrugated steel sheets 7.
[0038] Figure 6 , 78 shows that the upper and lower ends of the front part of the clamp body 20 have support plates protruding forward respectively, and the clamp cylinder 17 is fixedly connected to the upper surface of the upper support plate, and the cylinder rod of the clamp cylinder 17 passes through the upper support plate and is connected to the upper jaw 18, and the lower jaw 19 is placed above the surface of the lower support plate, and the upper jaw 18 is opposite to the lower jaw 19, and the corrugated steel plate 7 is clamped between the upper jaw 18 and the lower jaw 19 of the clamp body 20. The lower jaw 19 is lower than the corrugated steel plate 7, and the height can be automatically fine-tuned up and down through the guide rail 14, the slider 13 and the tension spring 22 when clamping to adapt to the slight unevenness of the corrugated steel plate 7 to avoid damage to the conveying trolley.
[0039] Fig. 9 , 10 It is shown that the roller part 2 includes a flat roller 23 and a guide roller 24. A plurality of flat rollers 23 are sequentially arranged in parallel and installed in the middle of the upper plane of the frame 6. The length direction of the flat roller 23 is perpendicular to the length direction of the frame 6. The corrugated steel sheet 7 is placed on the flat roller 23. The upper plane of the flat roller 23 and the bottom surface of the conveyed corrugated steel sheet 7 are in rolling cooperation, which is used to reduce the friction coefficient of the movement of the corrugated steel sheet 7. The guide rollers 24 are respectively installed in the middle of the frame 6 and the front end of the frame 6. The guide rollers 24 are respectively located on the outer side of the guide rails 14 on both sides of the frame 6. The roller shafts of the guide rollers 24 are respectively connected vertically to the outer side of the guide rails 14. The circumferential roller surface of the guide roller 24 is a circular arc groove, which matches the corrugation arc of the corrugated steel sheet 7. The corrugations on both sides of the corrugated steel sheet 7 are embedded in the grooves of the circumferential roller surface of the guide roller 24, which plays a role in guiding and positioning the corrugated steel sheet 7.
[0040] Fig.11 It is shown that the marking device 3 is composed of a marking cylinder seat 25, a marking cylinder 26, a marking head 27, a lower support plate 28, a fixed adjustment block 29, and an adjustment bolt 30. According to the required identification content of the corrugated steel plate 7, typing can be done on the corrugated steel plate 7, and Chinese characters, numbers or letters can be typed, and the size and content of the font can be freely selected.
[0041] The marking cylinder seat 25 is a U-shaped plate frame placed upright in a horizontal direction, and the opening of the U-shaped plate frame faces the middle of the upper plane of the frame 6. The marking cylinder 26 is fixed above the upper plate surface of the marking cylinder seat 25, and the lower support plate 28 is fixed to the inner surface of the lower plate surface of the marking cylinder seat 25. The upper surface of the lower support plate 28 is arc-shaped, and the arc shape matches the corrugation arc of the corrugated steel plate. The cylinder rod of the marking cylinder 26 passes downward through the upper plate surface of the marking cylinder seat 25, and the lower end of the cylinder rod is connected to the marking head 27, and the lower end surface of the marking head 27 is opposite to the plate surface of the lower support plate 28. When working, the corrugated steel plate 7 is located between the marking head 27 and the lower support plate 28, and the arc of the upper surface of the lower support plate 28 is on the bottom surface of the corrugated steel plate 7, and the marking head 27 marks downward.
[0042] The fixed adjustment block 29 is welded on the upper plane of the frame 6 outside the marking cylinder seat 25. There is an adjustment hole on the fixed adjustment block 29. The rear of the adjustment bolt 30 is located in the adjustment hole. There is a vertical long screw hole behind the upright plate surface of the marking cylinder seat 25. The front screw of the adjustment bolt 30 is screwed in the long screw hole. The bottom surface of the marking cylinder seat 25 is in sliding fit with the upper plane of the frame 6. When in use, the marking cylinder seat 25 can be moved forward and backward by rotating the adjustment bolt 30, so that the marking position can be adjusted in the left and right direction of the corrugated steel plate 7.
[0043] Fig.12 , 13 14 shows that the punching device 4 includes a base plate 31, a punching cylinder seat 32, a punching cylinder 33, a punch 34, an arc-shaped die 35, a fastening bolt 36, a base plate adjustment bolt 37, a clamping plate 38, and a clamping bolt 39. The punching device 4 performs a punching operation on the corrugated steel sheet under the control of the control mechanism. A plurality of punching devices can punch holes simultaneously as required, or can punch holes separately as required.
[0044] The bottom plate 31 is an L-shaped plate, and the long plate surface of the L-shaped plate of the bottom plate 31 is placed on the upper surface of the frame 6. There are long holes on the surface of the bottom plate 31. The fastening bolts 36 fix the bottom plate 31 to the upper surface of the frame 6 through the long holes. The fastening bolts 36 can adjust the position of the punching device 4 between the front and rear ends of the frame 6 through the long holes of the bottom plate 31, thereby adjusting the punching position of the punching device 4 in the front and rear directions of the corrugated steel plate 7, that is, adjusting the spacing between adjacent screw holes on one side of the corrugated steel plate 7.
[0045] The punching cylinder seat 32 is a U-shaped plate frame placed upright horizontally, and the opening of the U-shaped plate frame is opposite to the middle of the upper plane of the frame 6. The punching cylinder 33 is fixed above the upper plate surface of the punching cylinder seat 32. The cylinder rod of the punching cylinder 33 passes downward through the upper plate surface of the punching cylinder seat 32 and is connected to the punch 34. The arc die 34 is fixed on the inner surface of the lower plate surface of the punching cylinder seat 32. The punch 34 is opposite to the arc die 35. The corrugated steel plate 7 is located between the punch 34 and the arc die 35. The punch 34 punches the corrugated steel plate 7, and the arc die 35 is against the bottom surface of the corrugated steel plate 7.
[0046] The short plate surface of the L-shaped plate of the bottom plate 31 is vertical, and there is an adjustment hole on the plate surface. The rear part of the bottom plate adjustment bolt 37 is located in the adjustment hole. There is a vertical long screw hole behind the upright plate surface of the punching cylinder seat 32. The front screw rod of the bottom plate adjustment bolt 37 is screwed into the long screw hole. The bottom surface of the punching cylinder seat 32 is in sliding fit with the upper plane of the bottom plate 31. When in use, the bottom plate adjustment bolt 37 is rotated to move the punching cylinder seat 32 forward and backward, so that the punching position is adjusted in the left and right direction of the corrugated steel plate 7, that is, the distance between the side holes of the corrugated steel plate 7 is adjusted.
[0047] Fig.12 , 14 It is shown that there is a clamping plate 38 above the base plate 31 of the punching device 4, and the two clamping plates 38 are respectively located on both sides of the punching cylinder seat 32. There are horizontal grooves along the length direction of the punching cylinder seat 32 on both sides of the punching cylinder seat 32, and there are strip protrusions on the plate surfaces of the two clamping plates 38 opposite to the sides of the punching cylinder seat 32, and the strip protrusions are embedded in the horizontal grooves on both sides of the punching cylinder seat 32. There are fastening holes on the plate surfaces of the two clamping plates 38 along the length direction, and there are corresponding screw holes on the surface of the base plate 31 opposite to the bottom surface of the clamping plates 38. The clamping bolts 39 are fastened to the screw holes on the base plate 31 through the fastening holes of the clamping plates 38, and the clamping plates 38 press and fix the punching cylinder seat 32 on the base plate 31.
[0048] Fig.15 It is shown that the lower end of the cylinder rod of the punching cylinder 33 has a connecting thread. The punch 34 is composed of a punch seat 40 and a punch rod 41. The punch seat 40 is located on the upper part of the punch rod 41. The diameter of the punch seat 40 is larger than the diameter of the punch rod 41. The upper end face of the punch seat 40 is against the lower end face of the cylinder rod. There is a corresponding directional hole between the upper end face of the punch seat 40 and the lower end face of the cylinder rod. There is a directional key 42 in the directional hole to orient the lower end of the cylinder rod and the punch seat 40, that is, to determine the direction of the oblong hole, rectangular hole or special-shaped hole punch. The fastening sleeve 43 is sleeved on the outside of the punch seat 40. The inner wall of the fastening sleeve 43 has a thread that matches the thread at the lower end of the cylinder rod. The sleeve hole at the lower end of the fastening sleeve 43 matches the diameter of the punch rod. The punch rod extends out of the fastening sleeve 43 and is opposite to the arc-shaped die 35. The outside of the fastening sleeve 43 is locked by a locking sleeve 44.
[0049] Since the thickness range of the steel plate is large, in order to make the gap between the punch rod 41 and the arc-shaped die 35 more reasonable, the punch rod 41 can be divided into different diameters or cross-sectional sizes to adapt to the different thicknesses of the steel plate.
[0050] Fig.16 , 17 It is shown that the arc-shaped punch 35 is embedded in the groove on the inner surface of the lower plate surface of the punching cylinder seat 32. The upper surface of the arc-shaped punch 35 is a convex arc shape or a concave arc shape, and the arc of the convex arc shape or the concave arc shape matches the arc of the crest or trough of the corrugated steel plate 7. The outer wall of the arc-shaped punch 35 and the side wall of the groove on the lower plate surface of the punching cylinder seat 32 have corresponding punch key grooves, and the punch orientation key 51 is embedded in the punch key groove to orient the arc-shaped punch 35. When in use, the arc-shaped punch 35 is selected according to whether the corrugated steel plate 7 is placed forward or reversely when punching, and the direction of the circular hole, rectangular hole or special-shaped hole of the arc-shaped punch 35 is determined by the punch orientation key 51.
[0051] Fig.18It is shown that the structure of the pressing device 5 is the same as that of the marking device 3. The pressing device 5 is composed of a pressing cylinder seat 45, a pressing cylinder 46, a pressing head 47, a lower support block 48, a pressing adjustment block 49, and a pressing adjustment bolt 50.
[0052] The pressing cylinder seat 45 is a U-shaped plate frame placed upright in a horizontal direction, the opening of the U-shaped plate frame is opposite to the middle of the upper plane of the frame 6, the pressing cylinder 46 is fixed above the upper plate surface of the pressing cylinder seat 45, the lower support block 48 is fixed to the inner surface of the lower plate surface of the pressing cylinder seat 45, the cylinder rod of the pressing cylinder 46 passes downward through the upper plate surface of the pressing cylinder seat 45, the lower end of the cylinder rod is connected to the pressure head 47, the lower end surface of the pressure head 47 is opposite to the upper surface of the lower support block 48, the lower end surface of the pressure head 47 and the upper surface of the lower support block 48 are corresponding arc surfaces, the arc surface matches the corrugation arc of the corrugated steel sheet 7, and adapts to the corrugated steel sheet 7 with different R arcs. It is convenient to disassemble the pressure head 47. When unloading the pressure head 47, you only need to unscrew the pressure head 47 from the lower end thread of the cylinder rod to replace the pressure head 47.
[0053] The material pressing adjustment block 49 is welded on the plane of the frame 6 outside the material pressing oil cylinder seat 45. There is an adjustment hole on the material pressing adjustment block 49. The rear part of the material pressing adjustment bolt 50 is located in the adjustment hole. There is a vertical long screw hole behind the upright plate surface of the material pressing oil cylinder seat 45. The front screw of the material pressing adjustment bolt 50 is screwed in the long screw hole. The bottom surface of the material pressing oil cylinder seat 45 is in sliding fit with the upper plane of the frame 6. When in use, the material pressing oil cylinder seat 45 can be moved forward and backward by rotating the material pressing adjustment bolt 50, so that the material pressing position is adjusted in the left and right direction of the corrugated steel plate 7 to adapt to the change in the width of the corrugated steel plate 7.
[0054] The pressing device 5 has two functions. One is to press the corrugated steel plate 7 before punching so that the corrugated steel plate 7 cannot move during the punching process, thus playing a pressing role. The other is to withdraw the material. After the punching is completed, the pressing device 5 is still pressing. When the punch 34 moves upward, the punch 34 and the corrugated steel plate 7 can be separated, thus playing a withdrawing role.
[0055] The present invention is supported by other parts during use, including a feeding mechanism, a discharging mechanism, a hydraulic mechanism, and a control mechanism.
[0056] The loading mechanism can place the corrugated steel sheet 7 that needs to be punched at the designated position on the frame 6 of the present invention stably, timely and accurately; the discharging mechanism drags the corrugated steel sheet 7 that has been punched and transports the corrugated steel sheet 7 to the outside of the frame 6 under the drive of the power roller.
[0057] The hydraulic mechanism includes hydraulic stations, pipelines, valves, cylinders and other parts, which are used to provide power sources for each cylinder.
[0058] The control mechanism is the command hub for controlling the continuous operation of the present invention. By controlling the working sequence and working time of the servo motor and each cylinder, the processes of conveying the corrugated steel sheet 7 and marking, punching, pressing and the like are completed to meet the product requirements.
[0059] These parts are not the protection content of the present invention and will not be described in detail.
[0060] Working process of the present invention:
[0061] After the feeding mechanism feeds the present invention, the conveying trolley moves forward to the position of the corrugated steel sheet 7, the clamp 15 clamps the corrugated steel sheet 7, and the servo motor 9 drives the conveying trolley and the corrugated steel sheet 7 to move forward. The number of revolutions of the servo motor 9 is precisely controlled by the control mechanism so that the distance moved by the corrugated steel sheet 7 meets the accurate requirements of punching. The conveying trolley moves the corrugated steel sheet 7 to the designated position under the punch 34 of the punching device 4, the pressure head 47 of the pressing device 5 presses down to press the corrugated steel sheet 7, and the punch 34 of the punching device 4 punches downward. After the punching is completed, the punch 34 is lifted up, and the pressure head 47 of the pressing device 5 is lifted up to release the corrugated steel sheet 7, completing the first punching. Then the servo motor 9 pushes the conveying trolley and the corrugated steel sheet 7 forward again to the required punching distance and then stops, and the pressing device 5 and the punching device 4 repeat the pressing and punching process to complete the second punching. This operation is continued until all the required punching is completed, the clamp 15 releases the corrugated steel sheet 7, and the discharge mechanism transports the corrugated steel sheet 7 out of the frame 6, completing the punching operation.
[0062] An embodiment of the present invention is as follows:
[0063] The length of the rack 6 is 9000 mm, the height is 800 mm, and the width is 1800 mm;
[0064] The model of servo motor 9 is SGM7G-13AFC61;
[0065] The model of the reducer 10 is WPF120-1:20;
[0066] The model of the clamp cylinder 17 is Φ70×70;
[0067] The flat roller 23 has a diameter of 70 mm, a length of 600 mm, and a number of 16 mm;
[0068] The guide roller 24 has a diameter of 200 mm, a length of 100 mm, and a number of 10 mm;
[0069] The length of the marking cylinder seat 25 is 300 mm, the height is 300 mm, and the width is 230 mm;
[0070] The model of the marking cylinder 26 is Φ150×220;
[0071] The punching cylinder seat 32 has a length of 220 mm, a height of 330 mm, and a width of 120 mm;
[0072] The punching cylinder 33 model is Φ190×290;
[0073] The length of the pressing cylinder seat 45 is 220 mm, the height is 330 mm, and the width is 100 mm;
[0074] The model of the pressing cylinder 46 is Φ80×150;
[0075] The diameter of the adjusting bolt 30, the bottom plate adjusting bolt 37 and the pressing material adjusting bolt 50 is 16 mm and the length is 180 mm.
Claims
1. A device for punching edges of corrugated steel sheets, characterized in that: The invention comprises a frame (6), a conveying trolley and a transmission part (1), a roller part (2), a marking device (3), a punching device (4), and a material pressing device (5). The frame (6) is a rectangular steel frame. The guide rails (14) of the conveying trolley and the transmission part (1) are installed on both sides of the upper plane of the frame (6). The conveying trolley and the transmission part (1) are located above the guide rails (14). The conveying trolley and the transmission part (1) are in sliding cooperation with the guide rails (14). The roller part (2) is installed in the middle of the upper plane of the frame (6). The corrugated steel plate (7) is placed on the roller part (2). The rear end of the corrugated steel plate (7) is connected to the conveying trolley and the transmission part (1). The marking device (3), the punching device (4), and the material pressing device (5) are installed in the front part of the upper plane of the frame (6). The punching device (4 ), and the pressing device (5) are respectively arranged on both sides of the front plane of the frame (6) opposite to each other and in sequence, and the upper surfaces of the two sides of the front end of the corrugated steel plate (7) are respectively opposite to the marking device (3), the punching device (4), and the pressing device (5) on both sides, wherein there are multiple groups of punching devices (4), and the multiple groups of punching devices (4) are respectively located on both sides of the plane of the frame (6), and each side of the frame (6) has multiple punching devices (4) arranged at intervals, and the punching devices (4) on both sides of the frame (6) are respectively opposite to each other, and the distance between the punches (34) of the punching devices (4) opposite to each other on both sides of the frame (6) is equal to the distance between the side holes on both sides of the corrugated steel plate (7), and the distance between the punches (34) of the adjacent punching devices (4) on each side of the frame (6) is equal to the distance between the side holes on one side of the corrugated steel plate (7); The conveying trolley and transmission part (1) are composed of a chassis (8), a servo motor (9), a reducer (10), a gear (11), a rack (12), a slider (13), a guide rail (14), and a clamp (15). The chassis (8) is a rectangular steel plate. The servo motor (9) and the reducer (10) are mounted on the upper surface of the chassis (8). The reducer shaft passes downward through the chassis (8) and is connected to the gear (11). The two guide rails (14) are respectively mounted on the frame. On both sides of the upper plane (6), a rack (12) is installed on the inner side of a guide rail (14), the gear (11) is meshed with the rack (12), and sliders (13) are welded on both sides of the lower surface of the chassis (8), and the sliders (13) are respectively slidably matched with the guide rails (14) on both sides of the upper surface of the frame (6), and two clamps (15) are respectively fixed on both sides of the front end of the chassis (8), and the two clamps (15) are respectively clamped and connected with both sides of the rear end of the corrugated steel plate (7); The clamp (15) of the conveying trolley and the transmission part (1) comprises a bracket (16), a clamp cylinder (17), an upper jaw (18), a lower jaw (19), and a clamp body (20). The bracket (16) is composed of a vertical plate, a lower fixed plate and an upper top plate. The vertical plate is placed vertically, and the lower fixed plate and the upper top plate are horizontally welded to the lower and upper parts of both sides of the vertical plate respectively. The lower fixed plate is connected to the front end of the vehicle chassis (8) by bolts. The clamp body (20) is an upright rectangular parallelepiped. The rear part of the clamp body (20) is connected to the The upper and lower ends of the front part of the clamp body (20) are respectively provided with support plates protruding forward, the upper surface of the upper support plate is fixedly connected to the clamp cylinder (17), the lower jaw (19) is placed above the surface of the lower support plate, the cylinder rod of the clamp cylinder (17) passes downward through the upper support plate and is connected to the upper jaw (18), the upper jaw (18) and the lower jaw (19) are opposite to each other, and the corrugated steel plate (7) is clamped between the upper jaw (18) and the lower jaw (19).
2. The device for punching edges of corrugated steel sheets according to claim 1, characterized in that: The clamp (15) further comprises a sliding column (21) and a tension spring (22). The sliding column (21) is a vertical column, and the sliding column (21) is fixedly connected to the front of the vertical plate. The rear of the clamp body (20) comprises a vertical opening groove, and the opening groove is sleeved on the sliding column (21). The two sides and the bottom surface of the opening groove are respectively slidably matched with the two sides and the front of the sliding column (21). The upper support plate of the clamp body (20) is tensionedly connected to the upper top plate of the bracket (16) by a tension spring (22).
3. The device for punching edges of corrugated steel sheets according to claim 1, characterized in that: The roller part (2) comprises a flat roller (23) and a guide roller (24). The plurality of flat rollers (23) are sequentially arranged in parallel and mounted in the middle of the upper plane of the frame (6). The length direction of the flat rollers (23) is perpendicular to the length direction of the frame (6). The corrugated steel sheet (7) is placed on the flat rollers (23). The upper plane of the flat rollers (23) and the bottom surface of the conveyed corrugated steel sheet (7) are in rolling cooperation. The guide rollers (24) are respectively mounted on the frame. The guide rollers (24) are respectively located on the outer sides of the guide rails (14) on both sides of the frame (6); the guide rollers (24) have roller shafts respectively connected to the outer sides of the guide rails (14) vertically; the circumferential roller surface of the guide roller (24) is a circular arc groove, the circular arc groove matches the arc of the corrugation of the corrugated steel plate (7); the corrugations on both sides of the corrugated steel plate (7) are embedded in the grooves of the circumferential roller surface of the guide roller (24).
4. The device for punching edges of corrugated steel sheets according to claim 1, characterized in that: The marking device (3) is composed of a marking cylinder seat (25), a marking cylinder (26), a marking head (27), a lower support plate (28), a fixed adjustment block (29), and an adjustment bolt (30). The marking cylinder seat (25) is a U-shaped plate frame placed upright in a horizontal direction, and the opening of the U-shaped plate frame is opposite to the middle of the upper plane of the frame (6). The marking cylinder (26) is fixed above the upper plate surface of the marking cylinder seat (25), and the lower support plate (28) is fixed to the inner surface of the lower plate surface of the marking cylinder seat (25). The upper surface of the lower support plate (28) is an arc shape, and the arc shape matches the corrugation curvature of the corrugated steel plate (7). The cylinder rod of the cylinder (26) passes downward through the upper plate surface of the marking cylinder seat (25), and the lower end of the cylinder rod is connected to the marking head (27). The lower end surface of the marking head (27) is opposite to the plate surface of the lower support plate (28). The fixed adjustment block (29) is welded to the upper plane of the frame (6) outside the marking cylinder seat (25). The fixed adjustment block (29) has an adjustment hole, and the rear part of the adjustment bolt (30) is located in the adjustment hole. The rear of the upright plate surface of the marking cylinder seat (25) has a vertical long screw hole, and the front screw of the adjustment bolt (30) is screwed into the long screw hole. The bottom surface of the marking cylinder seat (25) is in sliding fit with the upper plane of the frame (6).
5. The device for punching edges of corrugated steel sheets according to claim 1, characterized in that: The punching device (4) comprises a base plate (31), a punching cylinder seat (32), a punching cylinder (33), a punch (34), an arc-shaped punching die (35), a fastening bolt (36), and a base plate adjustment bolt (37). The base plate (31) is an L-shaped plate, the long plate surface of the L-shaped plate of the base plate (31) is placed on the upper surface of the frame (6), the surface of the base plate (31) has a long hole, and the fastening bolt (36) fixes the base plate (31) to the upper surface of the frame (6) through the long hole. The punching cylinder seat (32) is a U-shaped plate frame placed upright in a horizontal direction, the opening of the U-shaped plate frame is opposite to the middle of the upper plane of the frame (6), and the punching cylinder (33) is fixed to the punching cylinder seat (32). ), the cylinder rod of the punching cylinder (33) passes downward through the upper plate surface of the punching cylinder seat (32) and is connected to the punch (34), the arc-shaped die (35) is fixed on the inner surface of the lower plate surface of the punching cylinder seat (32), the punch (34) matches the arc-shaped die (35), the short plate surface of the L-shaped plate of the bottom plate (31) is vertical, and an adjustment hole is provided on the plate surface, the rear part of the bottom plate adjustment bolt (37) is located in the adjustment hole, the vertical plate surface of the punching cylinder seat (32) has a vertical long screw hole at the rear, the front screw of the bottom plate adjustment bolt (37) is screwed in the long screw hole, and the bottom surface of the punching cylinder seat (32) and the upper plane of the bottom plate (31) are in sliding fit.
6. The device for punching edges of corrugated steel sheets according to claim 5, characterized in that: A clamping plate (38) is provided above the bottom plate (31) of the punching device (4), and the two clamping plates (38) are respectively located on both sides of the punching cylinder seat (32). The two sides of the punching cylinder seat (32) respectively have horizontal grooves along the length direction of the punching cylinder seat (32), and the two clamping plates (38) have strip-shaped protrusions on the plate surfaces opposite to the side surfaces of the punching cylinder seat (32), and the strip-shaped protrusions are embedded in the horizontal grooves on the two side surfaces of the punching cylinder seat (32). The plate surfaces of the two clamping plates (38) have fastening holes along the length direction, and the surface of the bottom plate (31) opposite to the bottom surface of the clamping plates (38) has corresponding screw holes, and the clamping bolts (39) are fastened and connected to the screw holes on the bottom plate (31) through the fastening holes of the clamping plates (38).
7. The device for punching edges of corrugated steel sheets according to claim 6, characterized in that: The lower end of the cylinder rod of the punching cylinder (33) has a connecting thread, and the punch (34) is composed of a punch seat (40) and a punch rod (41). The punch seat (40) is located on the upper part of the punch rod (41), the diameter of the punch seat (40) is larger than the diameter of the punch rod (41), the upper end surface of the punch seat (40) is pressed against the lower end surface of the cylinder rod, and a corresponding directional hole is provided between the upper end surface of the punch seat (40) and the lower end surface of the cylinder rod, and a directional key (42) is provided in the directional hole for directional connection, and a fastening sleeve (43) is sleeved on the outside of the punch seat (40), and the inner wall of the fastening sleeve (43) has a thread that matches and connects with the thread at the lower end of the cylinder rod, and the lower end of the fastening sleeve (43) is The sleeve hole matches the diameter of the punch rod (41), the punch rod (41) extends out of the fastening sleeve (43) and faces the arc-shaped die (35), the arc-shaped die (35) is embedded in the groove on the inner surface of the lower plate surface of the punching cylinder seat (32), the upper surface of the arc-shaped die (35) is respectively a convex arc shape or a concave arc shape, the arc of the convex arc shape or the concave arc shape matches the arc of the crest or trough of the corrugated steel plate (7), the outer wall of the arc-shaped die (35) and the side wall of the groove on the lower plate surface of the punching cylinder seat (32) have corresponding die key grooves, and the die orientation key (51) is embedded in the die key groove to orient the arc-shaped die (35).
8. The device for punching edges of corrugated steel sheets according to claim 1, characterized in that: The pressing device (5) comprises a pressing cylinder seat (45), a pressing cylinder (46), a pressure head (47), a lower support block (48), a pressing adjustment block (49), and a pressing adjustment bolt (50). The pressing cylinder seat (45) is a U-shaped plate frame placed upright in a horizontal direction. The opening of the U-shaped plate frame is opposite to the middle of the upper plane of the frame (6). The pressing cylinder (46) is fixed above the upper plate surface of the pressing cylinder seat (45). The lower support block (48) is fixed to the inner surface of the lower plate surface of the pressing cylinder seat (45). The cylinder rod of the pressing cylinder (46) passes downward through the upper plate surface of the pressing cylinder seat (45). The lower end of the cylinder rod is connected to the pressure head (47). The lower end surface of the head (47) is opposite to the upper surface of the lower support block (48), the lower end surface of the pressure head (47) and the upper surface of the lower support block (48) are corresponding arc surfaces, and the arc surfaces match the corrugation curvature of the corrugated steel plate (7). The pressure adjustment block (49) is welded to the plane of the frame (6) outside the pressure cylinder seat (45), and the pressure adjustment block (49) has an adjustment hole. The rear part of the pressure adjustment bolt (50) is located in the adjustment hole. The vertical plate surface of the pressure cylinder seat (45) has a vertical long screw hole at the rear, and the front screw of the pressure adjustment bolt (50) is screwed into the long screw hole. The bottom surface of the pressure cylinder seat (45) is slidably matched with the upper plane of the frame (6).
Citation Information
Patent Citations
U-shaped steel digital-control hydraulic three-surface punching device
CN101767146A
Feed device of corrugated plate press machine
CN104690184A
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