Automatic sheet transverse cutting device

Abstract

The utility model belongs to the technical field of general mechanical equipment manufacturing, and particularly relates to an automatic sheet transverse cutting device which comprises a traction assembly, a longitudinal moving mechanism, a cutting assembly and a pressing assembly. The traction assembly comprises a traction rack, a driving roller and a driven roller, and the driving roller and the driven roller are rotationally arranged on the traction rack; the longitudinal moving mechanism comprises a bottom frame, a rack, a speed reducer and a cutting machine frame, the cutting machine frame is arranged on the bottom frame in a sliding mode, the speed reducer is arranged on the lower portion of the cutting machine frame, the rack is arranged on the bottom frame, a gear is arranged on an output shaft of the speed reducer, and the gear is meshed with the rack; the cutting assembly is arranged on the cutting machine frame, the pressing assembly is arranged on the upper portion of the cutting machine frame, and the cutting machine frame is connected with the traction machine frame through a fluency carrier roller. The device is simple in structure and reasonable in design, the traction device does not stop feeding during cutting, the downtime is shortened, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to general mechanical and equipment manufacturing technical field, in particular to a sheet automatic cross cutting device. BACKGROUND

[0002] XPE foam is a chemical cross-linking polyethylene foam material, which is made of low-density polyethylene resin, cross-linking agent and foaming agent through high-temperature continuous foaming. Compared with EPE (physical foaming polyethylene, commonly known as pearl cotton), it has higher tensile strength and finer cells, and has the functions of heat preservation and thermal insulation. It also has the functions of noise reduction and waterproofing. It has the characteristics of heat resistance, aging resistance, environmental protection, coil shape and lamination, and can be widely used in central air conditioning engineering, pipeline engineering, large containers and advanced composite layers.

[0003] After foaming to form the product through the cross-linking process, the cutting knife needs to cut the foaming plate body, so that the plate body with fixed specifications and sizes can be obtained according to actual needs, which is more convenient for later storage and collection. Now there are some devices that can realize automatic cutting of fixed length, for example, Chinese patent number 202222620893.2 discloses an automatic cutting machine of XPE sheet production line, which can realize automatic cutting, but the front end must stop feeding during cutting, and continue feeding after cutting is completed, which greatly affects the production efficiency. UTILITY MODEL CONTENT

[0004] The utility model aims at overcoming the above-mentioned defects, and provides a sheet automatic cross cutting device, which has simple structure, reasonable design, realizes that the traction device does not stop feeding during cutting, reduces downtime, and improves production efficiency.

[0005] Technical scheme: In order to achieve the above-mentioned purpose, the utility model provides a sheet automatic cross cutting device, which comprises a traction assembly, a longitudinal moving mechanism, a cutting assembly and a pressing assembly.

[0006] The traction assembly comprises a traction rack, a driving roller and a driven roller, the driving roller and the driven roller are rotatably arranged on the traction rack, and the sheet is fed into the cutting part under the action of the driving roller and the driven roller.

[0007] The longitudinal moving mechanism comprises a base frame, a rack, a speed reducer and a cutting rack, the cutting rack is slidably arranged on the base frame, the speed reducer is arranged at the lower part of the cutting rack, the rack is arranged on the base frame, a gear is arranged on the output shaft of the speed reducer, and the gear is engaged with the rack.

[0008] The cutting assembly is arranged on the cutting frame, the pressing assembly is arranged on the upper part of the cutting frame, and the cutting frame and the traction frame are connected through the smooth supporting roller. When the cutting assembly acts, the speed reducer starts to act on the rack to make the cutting frame move longitudinally relative to the base frame, and the moving speed is consistent with the feeding speed of the traction assembly. In this way, the cutting frame and the sheet are relatively static, and the front end traction device still does not stop feeding during cutting, and the cutting frame returns to the original position after cutting is completed.

[0009] Further, the cutting assembly comprises a group of guide columns, a support, a cutter shaft, a cutting motor, and a cutting blade. The support is slidingly arranged on the guide columns, the cutter shaft is rotatably arranged above the support, the cutting motor is arranged on the bottom surface of the support, the cutting motor is connected with one end of the cutter shaft through a synchronous belt, and the cutting blade is arranged at the other end of the cutter shaft. The cutting motor starts to drive the main shaft to rotate, so as to drive the cutting tool at the end to rotate.

[0010] Further, a transverse moving motor with a chain wheel is arranged on the side of the cutting frame, a chain wheel is arranged on the side, away from the transverse moving motor, of the cutting frame, and a chain is wound between the transverse moving motor and the chain wheel.

[0011] A group of chain connectors are further arranged on the bottom of the support, the chain connectors are connected with the chain to form a closed loop, the transverse moving motor starts to drive the chain to rotate, so as to drive the chain connectors connected with the chain to move, that is, the support moves transversely along the guide columns, and the cutting tool realizes transverse cutting of the sheet.

[0012] A group of oil pressure buffers are arranged on the inner side of the cutting frame, buffer plates are arranged on the two sides of the support, and the buffer plates are matched with the oil pressure buffers. The buffer plates and the oil pressure buffers are in contact to play a buffering role, so as to avoid that the cutting assembly collides with the cutting frame to damage the equipment.

[0013] Further, a cutting platform is arranged on the cutting frame, a notch through which the cutting blade passes is arranged on the cutting platform, and the pressing assembly is arranged directly above the notch. The sheet is cut on the cutting platform.

[0014] Further, the pressing assembly comprises a pressing cylinder, a guide column and a pressing beam. The pressing cylinder is arranged on the top of the cutting frame, the telescopic rod of the pressing cylinder penetrates through the top surface of the cutting frame to connect the pressing beam, the top surface of the cutting frame is further provided with a guide hole, a linear bearing is arranged in the guide hole, the guide column penetrates through the guide hole to be connected with the pressing beam, and the bottom of the pressing beam is provided with a rubber block. The pressing beam is lowered under the action of the pressing cylinder, is matched with the cutting platform to press the sheet, and avoids that an error is generated due to movement of the sheet during cutting. The rubber block at the bottom is more conducive to pressing and does not damage the sheet, the guide column plays a guiding role and makes the whole pressing beam descend synchronously.

[0015] Further, the traction assembly further comprises a set of lifting cylinders arranged on the top of the traction frame, the lifting cylinders are connected with the two ends of the driven roller, a driving motor is arranged on the side of the traction frame and connected with the driving roller, and a side blocking assembly is arranged on the front end of the traction frame.

[0016] Further, the side blocking assembly comprises a transversely arranged mounting shaft and side rollers arranged on the mounting shaft through clamps.

[0017] Further, a rotary encoder is arranged on the rotating shaft of the driving roller.

[0018] Further, a linear guide rail is arranged on the base frame, and a sliding block is arranged on the bottom surface of the cutting frame and matched with the linear guide rail.

[0019] Further, a traction support frame is arranged on the rear end of the traction frame, a front end support frame is arranged on the front end of the cutting frame, and the two ends of the flow supporting roller are arranged on the traction support frame and the front end support frame respectively.

[0020] The above technical scheme can achieve the following beneficial effects:

[0021] 1. The cutting frame with the cutting assembly can move backward together with the sheet material during cutting, the moving speed of the cutting frame is consistent with the conveying speed of the front sheet material, the cutting part remains unchanged under the action of the pressing assembly to ensure the cutting precision, and the feeding does not need to be stopped during cutting, so that the production efficiency is greatly improved.

[0022] 2. The rotary encoder is arranged on the driving roller, the feeding length of the sheet material is obtained through the rotary encoder, and the cutting time is controlled, so that the length cutting of the sheet material is realized. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The side view of the sheet material automatic cross cutting device is shown in the drawings.

[0024] Figure 2A rear view of the automatic sheet transverse cutting device is disclosed in the utility model.

[0025] Figure 3 A side view of the traction assembly is disclosed in the utility model.

[0026] Figure 4 A front view of the traction assembly is disclosed in the utility model.

[0027] Figure 5 A schematic view of the cooperation of the speed reducer and the rack is disclosed in the utility model.

[0028] Figure 6 A front view of the cutting assembly is disclosed in the utility model.

[0029] Figure 7 A side view of the cutting assembly is disclosed in the utility model.

[0030] Figure 8 A top view of the cutting assembly is disclosed in the utility model.

[0031] Figure 9 A front view of the pressing assembly is disclosed in the utility model.

[0032] Figure 10 A schematic view of the side blocking assembly is disclosed in the utility model.

[0033] Figure 11 A schematic view of the cooperation of the base frame and the cutting frame is disclosed in the utility model.

[0034] In the drawing: 1-traction assembly, 11-towing frame, 111-towing support frame, 12-driving roller, 13-following roller, 14-lifting cylinder, 15-driving motor, 16-side blocking assembly, 161-mounting shaft, 162-side roller, 163-clamp;

[0035] 2-longitudinal moving assembly, 21-base frame, 211-linear guide rail, 22-rack, 23-speed reducer, 231-gear, 24-cutting frame, 241-horizontal moving motor, 242-sprocket, 243-cutting platform, 244-sliding block, 245-front support frame, 246-feeding roller, 247-oil buffer;

[0036] 3-cutting assembly, 31-guide column, 32-support, 321-chain connector, 322-buffer plate, 33-knife shaft, 34-cutting motor, 35-cutting blade, 36-synchronous belt;

[0037] 4-pressing assembly, 41-pressing cylinder, 42-guide column, 43-pressing beam, 431-rubber block, 44-linear bearing;

[0038] 5. A smooth roller. DETAILED DESCRIPTION

[0039] It should be understood that the specific embodiments described herein are merely exemplary and not intended to limit the present application.

[0040] As shown in Figure 1 , an automatic sheet cross-cutting device comprises a traction assembly 1, a longitudinal movement mechanism 2, a cutting assembly 3, a pressing assembly 4;

[0041] As shown in Figure 3 , Figure 4 , the traction assembly 1 comprises a traction frame 11, a driving roller 12 and a driven roller 13, the driving roller 12 and the driven roller 13 are rotatably arranged on the traction frame 11;

[0042] As shown in Figure 2 , Figure 5 , the longitudinal movement mechanism 2 comprises a base frame 21, a rack 22, a speed reducer 23 and a cutting frame 24, the cutting frame 24 is slidably arranged on the base frame 21, the speed reducer 23 is arranged at the lower part of the cutting frame 24, the rack 22 is arranged on the base frame 21, a gear 231 is arranged on the output shaft of the speed reducer 23, and the gear 231 is engaged with the rack 22;

[0043] The cutting assembly 3 is arranged on the cutting frame 24, the pressing assembly 4 is arranged on the upper part of the cutting frame 24, and the cutting frame 24 and the traction frame 11 are connected through a smooth roller 5.

[0044] As shown in Figure 6 and Figure 7 , the cutting assembly 3 comprises a group of guide columns 31, a bracket 32, a knife shaft 33, a cutting motor 34 and a cutting blade 35, the bracket 32 is slidably arranged on the guide columns 31, the knife shaft 33 is rotatably arranged above the bracket 32, the cutting motor 34 is arranged on the bottom surface of the bracket 32, the cutting motor 34 is connected with one end of the knife shaft 33 through a synchronous belt 36, and the cutting blade 35 is arranged on the other end of the knife shaft 33.

[0045] As shown in Figure 8 , a transverse movement motor 241 with a sprocket is arranged on the side of the cutting frame 24, a sprocket 242 is arranged on the side of the cutting frame 24 away from the transverse movement motor 241, and a chain is wound between the transverse movement motor 241 and the sprocket 242;

[0046] A group of chain connectors 321 is further arranged on the bottom of the bracket 32, and the chain connectors 321 and the chain are connected to form a closed loop;

[0047] In addition, as shown in Figure 6 , the chain connectors 321 are arranged on the bottom of the bracket 32, and the chain is wound between the chain connectors 321 and the sprocket 242.As shown, a group of oil pressure buffers 247 are provided on the inner side of the cutting frame 24 , and buffer plates 322 are provided on both sides of the bracket 32 ​​, and the buffer plates 322 cooperate with the oil pressure buffers 247 .

[0048] like Figure 1 As shown, a cutting platform 243 is provided on the cutting frame 24 , a slot is provided on the cutting platform 243 for the cutting blade 35 to pass through, and the pressing assembly 4 is arranged right above the slot.

[0049] like Figure 9 As shown, the clamping assembly 4 includes a clamping cylinder 41, a guide column 42 and a pressure beam 43. The clamping cylinder 41 is arranged on the top of the cutting frame 24. The telescopic rod of the clamping cylinder 41 passes through the top surface of the cutting frame 24 to connect to the pressure beam 43. The top surface of the cutting frame 24 is also provided with a guide hole. A linear bearing 44 is provided in the guide hole. The guide column 42 passes through the guide hole to be connected to the pressure beam 43; a rubber block 431 is provided at the bottom of the pressure beam 43.

[0050] See again Figure 3 and Figure 4 The traction assembly 1 also includes a set of lifting cylinders 14, which are arranged on the top of the traction frame 11. The lifting cylinders 14 are connected to both ends of the driven roller 13. A driving motor 15 is set on the side of the traction frame 11, and the driving motor 15 is connected to the active roller 12. A side block assembly 16 is set at the front end of the traction frame 11.

[0051] Among them, such as Figure 10 As shown, the side stop assembly 16 includes a transversely arranged mounting shaft 161 and a side roller 162 , and the side roller 162 is arranged on the mounting shaft 161 through a clamp 163 .

[0052] In addition, a rotary encoder is provided on the rotating shaft of the active roller 12 .

[0053] like Figure 11 As shown, a linear guide rail 211 is provided on the base frame 21 , and a slider 244 is provided on the bottom surface of the cutting frame 24 , and the slider 244 cooperates with the linear guide rail 211 .

[0054] like Figure 1 As shown, the rear end of the traction frame 11 is provided with a traction support frame 111, the front end of the cutting frame 24 is provided with a front end support frame 245, and the two ends of the flow roller 5 are respectively provided on the traction support frame 111 and the front end support frame 245;

[0055] A material unloading roller 246 is provided at the rear end of the cutting frame 24 .

[0056] The working principle of the automatic sheet cross-cutting device provided by the utility model is as follows:

[0057] First according to the thickness of the sheet, by adjusting the lift cylinder 14 between the main roller 12 and the driven roller 13 spacing, according to the width of the sheet between the side roller 162 spacing adjustment. After adjustment, the sheet through the main roller 12 and the driven roller 13 delivery, and through the flow of the roller 5 to the cutting platform 243 on the delivery, when the encoder on the main roller 12 rotation set number (i.e. the sheet delivery set length), compression cylinder 41 drive pressure beam 43 will be between the sheet and cutting platform 243 pressure on the cutting motor 34 start drive cutting blade 35 rotation, while the horizontal movement motor 241 drive bracket 32 and cutting blade 35 transverse cutting, while the speed reducer 23 start, so that the cutting frame 24 as a whole to move backward, the moving speed with the sheet is equal, so that the traction assembly 1 is also in the cutting in feeding, cutting frame 24 after the completion of the cutting under the action of the speed reducer 241 back to the original position, for the next cutting preparation.

[0058] The above only is the preferred embodiment of the present application, it should be pointed out that, for those of ordinary skill in the art, without departing from the principles of the present application, can make a number of improvements, these improvements should also be considered as the protection scope of the present application.

Claims

1. A sheet material automatic cross-cutting device, characterized in that: It comprises a traction assembly (1), a longitudinal movement mechanism (2), a cutting assembly (3), and a pressing assembly (4); The traction assembly (1) comprises a traction frame (11), a driving roller (12) and a driven roller (13), wherein the driving roller (12) and the driven roller (13) are rotatably mounted on the traction frame (11); The longitudinal movement mechanism (2) comprises a base frame (21), a rack (22), a reducer (23) and a cutting frame (24); the cutting frame (24) is slidably mounted on the base frame (21); the reducer (23) is mounted at the lower portion of the cutting frame (24); the rack (22) is mounted on the base frame (21); a gear (231) is mounted on the output shaft of the reducer (23); and the gear (231) is meshed with the rack (22); The cutting assembly (3) is arranged on the cutting frame (24), the pressing assembly (4) is arranged on the upper part of the cutting frame (24), and the cutting frame (24) and the traction frame (11) are connected via a flow roller (5).

2. The automatic sheet cross-cutting device according to claim 1, characterized in that: The cutting assembly (3) comprises a group of guide posts (31), a bracket (32), a knife shaft (33), a cutting motor (34), and a cutting blade (35). The bracket (32) is slidably arranged on the guide posts (31), the knife shaft (33) is rotatably arranged above the bracket (32), the cutting motor (34) is arranged on the bottom surface of the bracket (32), the cutting motor (34) is connected to one end of the knife shaft (33) through a synchronous belt (36), and the cutting blade (35) is arranged at the other end of the knife shaft (33).

3. The automatic sheet cross-cutting device according to claim 2, characterized in that: A transverse motor (241) with a sprocket is provided on the side of the cutting frame (24), a sprocket (242) is provided on the side of the cutting frame (24) facing away from the transverse motor (241), and a chain is wound between the transverse motor (241) and the sprocket (242); A group of chain connectors (321) are also provided at the bottom of the bracket (32), and the chain connectors (321) are connected to the chain to form a closed loop; A group of oil pressure buffers (247) are provided on the inner side of the cutting frame (24), and buffer plates (322) are provided on both sides of the bracket (32), and the buffer plates (322) cooperate with the oil pressure buffers (247).

4. The automatic sheet cross-cutting device according to claim 2, characterized in that: A cutting platform (243) is provided on the cutting machine frame (24), a notch is provided on the cutting platform (243) for the cutting blade (35) to pass through, and the pressing assembly (4) is located directly above the notch.

5. The automatic sheet cross-cutting device according to claim 2, characterized in that: The pressing assembly (4) includes a pressing cylinder (41), a guide column (42) and a pressure beam (43), wherein the pressing cylinder (41) is arranged on the top of the cutting frame (24), and the telescopic rod of the pressing cylinder (41) passes through the top surface of the cutting frame (24) to connect to the pressure beam (43), and the top surface of the cutting frame (24) is also provided with a guide hole, in which a linear bearing (44) is provided, and the guide column (42) passes through the guide hole to connect to the pressure beam (43); A rubber block (431) is provided at the bottom of the pressure beam (43).

6. The automatic sheet cross-cutting device according to claim 1, characterized in that: The traction assembly (1) further includes a set of lifting cylinders (14), the lifting cylinders (14) being arranged on the top of the traction frame (11), the lifting cylinders (14) being connected to both ends of the driven roller (13), a driving motor (15) being arranged on the side of the traction frame (11), the driving motor (15) being connected to the active roller (12), and a side block assembly (16) being arranged at the front end of the traction frame (11).

7. The automatic sheet cross-cutting device according to claim 6, characterized in that: The side stop assembly (16) comprises a transversely arranged mounting shaft (161) and a side roller (162), wherein the side roller (162) is arranged on the mounting shaft (161) via a clamp (163).

8. The automatic sheet cross-cutting device according to claim 7, characterized in that: A rotary encoder is provided on the rotating shaft of the active roller (12).

9. The automatic sheet cross-cutting device according to claim 1, characterized in that: A linear guide rail (211) is provided on the base frame (21), and a slider (244) is provided on the bottom surface of the cutting machine frame (24), wherein the slider (244) cooperates with the linear guide rail (211).

10. The automatic sheet cross-cutting device according to claim 1, characterized in that: The rear end of the traction frame (11) is provided with a traction support frame (111), the front end of the cutting frame (24) is provided with a front end support frame (245), and both ends of the flow roller (5) are respectively provided on the traction support frame (111) and the front end support frame (245); A material discharge roller (246) is provided at the rear end of the cutting frame (24).

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