Middle and rear trolley unwinding mechanism of splitting machine

Abstract

The utility model discloses a splitting machine middle and rear vehicle unreeling mechanism which comprises a middle vehicle and a rear vehicle, and the rear vehicle comprises a bottom plate, a jacking mechanism arranged on the bottom plate and an unreeling shaft fixing mechanism arranged on the bottom plate. The unreeling shaft fixing mechanism comprises a linear guide rail arranged on the bottom plate, a sliding frame, a first air cylinder fixedly arranged on the bottom plate and used for driving the sliding frame to slide along the linear guide rail, an inflatable top head fixedly arranged on the bottom plate and used for driving the sliding frame, and a car roof shaft arranged at the upper end of the sliding frame in a rolling mode and coaxially connected with the top head. The jacking mechanism comprises a lifting frame arranged on the bottom plate in a sliding mode, an oil cylinder fixedly arranged at the end of the bottom plate and used for driving the lifting frame to ascend and descend, and an arc-shaped supporting plate fixedly arranged at the upper end of the lifting frame. The unwinding device has the advantages that the jitter of the unwinding shaft during rotation is reduced, the limitation of the unwinding diameter is broken through, meanwhile, the occupied area is small, and the limitation on paper types and sites is overcome.

Description

Technical Field

[0001] The utility model relates to the field of base paper processing equipment, in particular to a rear vehicle unwinding mechanism in a slitter. Background Technique

[0002] Before the base paper is processed, it needs to be conveyed by the rear vehicle and the middle vehicle. When the existing rear vehicle conveying mechanism unwinds, both ends of the unwinding shaft are fixed by a fixing mechanism, and then unwinding is realized. The clamping parts for clamping both ends of the unwinding shaft in the existing device are usually arranged on the cross beam, and the same driving mechanism is used to drive the two clamping parts to move towards each other to fix the unwinding shaft. This design method is prone to jitter of the entire unwinding shaft during use, and it is extremely inconvenient to load and unload unwinding shafts with different diameters.

[0003] For example, the Chinese patent with the publication number of CN105035799A discloses a lifting device of a base paper slitter, including a frame. A clamping device for clamping the base paper roll is installed on the frame. The clamping device includes left and right brackets vertically arranged on the frame, a guide rail arranged between the left and right brackets, and left and right clamping members arranged on the guide rail. The frame is also provided with a lifting device for controlling the lifting of the clamping device and a braking structure for braking the lifting device. The lifting device includes a lifting side plate hinged outside the left and right brackets, an oil cylinder for driving the lifting of the lifting side plate, and a lifting rod fixed at both ends on the lifting side plate and horizontally passing through the left and right clamping members. The braking structure includes a fixed mounting seat fixed on the clamping arm, two rotating shafts fixed on the fixed mounting seat, two clamping plates installed on the rotating shafts and rotatable around the rotating shafts, a friction disk fixed on the clamping part and located between the two clamping plates, and a cylinder fixed on the fixed mounting seat and acting on the clamping plate on the same side. The clamping device of the lifting device of the above-mentioned base paper slitter clamps from both ends of the unwinding shaft. When it is lifted by the lifting device during use, due to the large number of connection points between various mechanisms, there is a large jitter when the unwinding shaft rotates, and it is inconvenient to load and unload unwinding shafts with a large diameter.

[0004] In view of this, it is necessary to provide a rear vehicle unwinding mechanism in a slitter. Summary of the Invention

[0005] A rear vehicle unwinding mechanism in a slitter provided by the utility model effectively solves the problems of large jitter of the unwinding shaft, large floor area of the unwinding shaft, inconvenient loading and unloading of the unwinding shaft and being limited by the unwinding diameter in the existing rear vehicle unwinding mechanism of the slitter.

[0006] The technical solution adopted by the utility model is

[0007] A rear vehicle unwinding mechanism in a slitter, comprising a middle vehicle and a rear vehicle. The rear vehicle includes a bottom plate extending in the X direction, a lifting mechanism provided on the bottom plate, and unwind shaft fixing mechanisms symmetrically arranged at both ends of the bottom plate with respect to the lifting mechanism. The unwind shaft fixing mechanism includes a linear guide rail provided on the bottom plate in the X direction, a sliding carriage slidably arranged on the linear guide rail, a first cylinder fixedly arranged on the bottom plate for driving the sliding carriage to slide along the linear guide rail, a pneumatic expansion chuck fixedly arranged on the bottom plate for driving the pneumatic expansion chuck arranged on the sliding carriage, a vehicle roof shaft rotatably arranged at the upper end of the sliding carriage and coaxially connected to the chuck, and a driving assembly arranged in the sliding carriage for driving the variable-diameter pneumatic expansion chuck to rotate. The lifting mechanism includes a lifting frame slidably arranged on the bottom plate, an oil cylinder fixedly arranged at the end of the bottom plate for driving the lifting frame to lift, and an arc-shaped support plate fixedly arranged at the upper end of the lifting frame.

[0008] Furthermore: The middle vehicle includes a first vertical plate and a second vertical plate symmetrically arranged, a plurality of paper guide rollers respectively and rotatably connected to the first vertical plate and the second vertical plate at both ends, a reverse prevention assembly for preventing the paper from flowing backward, and a tensioning assembly for cooperating with the paper guide rollers to tension the paper.

[0009] Furthermore: The reverse prevention assembly includes a first seat arranged on the first vertical plate, a second seat arranged on the second vertical plate, a first rotating plate hinged to the first seat, a second rotating plate hinged to the second seat, a reverse roller respectively connected to the first rotating plate and the second rotating plate at both ends, a second cylinder with its cylinder body hinged to the first vertical plate and its output end hinged to the first rotating plate, and a third cylinder with its cylinder body hinged to the second vertical plate and its output end hinged to the second rotating plate.

[0010] Furthermore: The tensioning assembly includes a fourth cylinder, a rotating shaft respectively and rotatably connected to the first vertical plate and the second vertical plate at both ends, two connecting plates fixedly arranged on the rotating shaft, and a first roller respectively and rotatably connected to one end of the two connecting plates at both ends. The cylinder body of the fourth cylinder is hinged to the first vertical plate, and the output end of the fourth cylinder is hinged to the other end of the connecting plate.

[0011] Furthermore: The upper end of the sliding carriage includes a first cylinder extending in the X direction. The vehicle roof shaft includes a plurality of ball bearings with the outer ring abutted against the inner wall of the first cylinder, a rotating shaft sleeved in the ball bearings, a first flange fixedly connected to one end of the rotating shaft, and a limiting disc sleeved on the rotating shaft for limiting both ends of the first cylinder. The rotating shaft is provided with an air passage communicated with the air inlet hole of the pneumatic expansion chuck, and the first flange is fixedly connected to one side of the pneumatic expansion chuck.

[0012] Advantages of the utility model: The design of the rear vehicle integrates the bottom plate and the unwind shaft fixing mechanism, reducing the vibration of the unwind roller during rotation. The lifting mechanism is used for loading and unloading paper, breaking the limitation of the unwind diameter. At the same time, it occupies a small area and overcomes the limitations of paper types and sites. Description of the Drawings

[0013] Figure 1 The overall schematic diagram of the rear vehicle unwinding mechanism in the slitter provided by the embodiment of the present application.

[0014] Figure 2 The schematic diagram of the rear side of the rear vehicle unwinding mechanism in the slitter provided by the embodiment of the present application.

[0015] Figure 3 The schematic diagram of the middle vehicle of the rear vehicle unwinding mechanism in the slitter provided by the embodiment of the present application.

[0016] Figure 4 The schematic diagram of the anti-reverse component of the rear vehicle unwinding mechanism in the slitter provided by the embodiment of the present application.

[0017] Figure 5 The schematic diagram of the tensioning component of the rear vehicle unwinding mechanism in the slitter provided by the embodiment of the present application.

[0018] Figure 6 The schematic diagram of the roof shaft and air chuck of the rear vehicle unwinding mechanism in the slitter provided by the embodiment of the present application.

[0019] The labels in the figure are: 1, middle vehicle; 2, rear vehicle; 21, bottom plate; 22, lifting mechanism; 23, unwinding shaft fixing mechanism; 231, linear guide rail; 232, sliding frame; 233, first cylinder; 234, air chuck; 235, roof shaft; 236, driving component; 221, lifting frame; 222, oil cylinder; 223, arc-shaped supporting plate; 11, first vertical plate; 12, second vertical plate; 13, paper guiding roller; 14, anti-reverse component; 15, tensioning component; 141, first seat; 142, second seat; 143, first rotating plate; 144, second rotating plate; 145, anti-reverse roller; 146, second cylinder; 147, third cylinder; 151, fourth cylinder; 152, rotating shaft; 153, connecting plate; 154, first roller; 2321, first cylinder; 351, ball bearing; 352, rotating shaft; 353, first flange; 354, limiting disc; 30, air duct. Detailed implementation manners

[0020] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific implementation manners of the present utility model will be given in conjunction with the accompanying drawings.

[0021] As Figure 1 and Figure 2As shown in the figure, a rear vehicle unwind mechanism provided by an embodiment of the present application includes a middle vehicle 1 and a rear vehicle 2. The rear vehicle 2 includes a bottom plate 21 extending in the X direction, a lifting mechanism 22 provided on the bottom plate 21, and unwind shaft fixing mechanisms 23 symmetrically arranged at both ends of the bottom plate 21 with respect to the lifting mechanism 22. The unwind shaft fixing mechanism 23 includes a linear guide rail 231 arranged on the bottom plate 21 in the X direction, a sliding carriage 232 slidably arranged on the linear guide rail 231, a first cylinder 233 fixedly arranged on the bottom plate 21 for driving the sliding carriage 232 to slide along the linear guide rail 231, a pneumatic expansion chuck 234 fixedly arranged on the bottom plate 21 for driving the one arranged on the sliding carriage 232, a vehicle roof shaft 235 rotatably arranged at the upper end of the sliding carriage and coaxially connected to the chuck, and a driving component 236 arranged in the sliding carriage 232 for driving the variable-diameter pneumatic expansion chuck 234 to rotate. The lifting mechanism 22 includes a lifting frame 221 slidably arranged on the bottom plate 21, an oil cylinder 222 fixedly arranged at the end of the bottom plate for driving the lifting frame 221 to lift, and an arc-shaped supporting plate 223 fixedly arranged at the upper end of the lifting frame 221.

[0022] It should be noted that the driving component 236 is a motor, which drives the pneumatic expansion shaft to rotate through a synchronous belt.

[0023] During actual use, the unwind shaft is placed on the arc-shaped supporting plate 223, and the oil cylinder 222 is used to drive the lifting frame 221 to drive the arc-shaped supporting plate 223 to rise, so that both ends of the unwind shaft correspond to the two unwind shaft fixing mechanisms 23 respectively. Subsequently, the first cylinder 233 drives the sliding carriage 232 to move along the linear guide rail 231 towards the unwind shaft side, so that the pneumatic expansion shaft extends into the mounting hole of the unwind shaft, thereby fixing the unwind shaft. Subsequently, the driving component 236 is used to drive the pneumatic expansion shaft to rotate, and the paper is rolled and fed with the cooperation of the middle vehicle 1.

[0024] In the above design, the design of the rear vehicle 2 integrates the bottom plate 21 and the unwind shaft fixing mechanism 23, which reduces the vibration of the unwind roll during rotation. The lifting mechanism 22 is used for loading and unloading paper, breaking the limitation of the unwind diameter. At the same time, it has a small floor area and overcomes the limitations on paper types and sites.

[0025] Specifically: as Figure 3 shown, the middle vehicle 1 includes a first vertical plate 11 and a second vertical plate 12 symmetrically arranged, a plurality of paper guide rollers 13 with both ends respectively rollingly connected to the first vertical plate 11 and the vertical plate, a reverse prevention component 14 for preventing the paper from flowing back, and a tensioning component 15 for cooperating with the paper guide rollers 13 to tension the paper.

[0026] During actual use, the paper is alternately conveyed along a plurality of paper guide rollers 13. When the paper curls up, the tensioning component 15 is used to tension the paper. When the paper breaks, the reverse prevention component 14 presses the unbroken paper against any one of the paper guide rollers 13.

[0027] In the above design, the structural design and specific implementation of the tensioning assembly 15 and the anti-backflow assembly 14 can realize the normal roller feeding of the paper and improve the working efficiency.

[0028] Specifically: as Figure 4 shown, the anti-backflow assembly 14 includes a first seat 141 arranged on the first vertical plate 11, a second seat 142 arranged on the second vertical plate 12, a first rotating plate 143 hinged on the first seat 141, a second rotating plate 144 hinged on the second seat 142, an anti-backflow roller 145 with two ends respectively connected to the first rotating plate 143 and the second rotating plate 144, a second air cylinder 146 with the cylinder body hinged to the first vertical plate 11 and the output end hinged to the first rotating plate 143, and a third air cylinder 147 with the cylinder body hinged to the second vertical plate 12 and the output end hinged to the second rotating plate 144. The anti-backflow roller 145 corresponds to the paper guiding roller 13 closest to the rear vehicle 2.

[0029] During actual use, when the paper breaks, the first rotating plate 143 and the second plate are respectively driven by the second air cylinder 146 and the third air cylinder 147 to rotate, so that the anti-backflow roller 145 cooperates with the paper guiding roller 13 to press the paper tightly.

[0030] In the above design, the structural design and specific implementation of the anti-backflow assembly 14 can effectively prevent the paper from flowing back after breaking.

[0031] Specifically: as Figure 5 shown, the tensioning assembly 15 includes a fourth air cylinder 151, a rotating shaft 152 with two ends respectively rolling-connected to the first vertical plate 11 and the second vertical plate 12, two connecting plates 153 fixedly arranged on the rotating shaft 152, and a first roller 154 with two ends respectively rotatably connected to one ends of the two connecting plates 153. The cylinder body of the fourth air cylinder 151 is hinged to the first vertical plate 11, and the output end of the fourth air cylinder 151 is hinged to the other end of the connecting plate 153.

[0032] During actual use, when the paper is in an untensioned state, the connecting plate 153 is driven to rotate by the fourth air cylinder 151, so that the connecting plate 153 drives the rotating shaft 152 and the first roller 154 to rotate synchronously, thereby enabling the first roller 154 to support the paper and making the paper tensioned.

[0033] In the above design, the structural design and specific implementation of the tensioning assembly 15 can effectively realize the tensioning of the paper.

[0034] Specifically: as Figure 6As shown, the upper end of the sliding frame 232 includes a first cylinder 2321 extending in the X direction. The roof shaft 235 includes a number of ball bearings 351 whose outer rings abut against the inner wall of the first cylinder 2321, a rotating shaft 352 sleeved within the ball bearings 351, a first flange 353 fixedly connected to one end of the rotating shaft 352, and a limiting disc 354 sleeved on the rotating shaft 352 for limiting both ends of the first cylinder 2321. The rotating shaft 352 is provided with an air passage 30 that communicates with the air inlet hole of the air expansion head 234, and the first flange 353 is fixedly connected to one side of the air expansion head 234.

[0035] During actual use, air is supplied to the air expansion head 234 through the air passage 30, so that the air expansion head 234 is fixed to the unwinding shaft. When the air expansion head 234 drives the unwinding shaft to rotate, the roof shaft 235 rotates synchronously with the air expansion shaft.

[0036] In the above design, the structural design of the roof shaft 235 facilitates the stable connection and synchronous rotation of the air expansion head 234.

[0037] For further detailed description, it should be understood that the above are only specific embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. The rear unwind mechanism in a slitter, comprising a middle vehicle (1) and a rear vehicle (2), characterized in that: The rear vehicle (2) includes a bottom plate (21) extending in the X direction, a lifting mechanism (22) provided on the bottom plate (21), and reel fixing mechanisms (23) provided at both ends of the bottom plate (21) and symmetric about the lifting mechanism (22). The reel fixing mechanism (23) includes a linear guide rail (231) provided on the bottom plate (21) in the X direction, a sliding carriage (232) slidably provided on the linear guide rail (231), a first cylinder (233) fixedly provided on the bottom plate (21) for driving the sliding carriage (232) to slide along the linear guide rail (231), a pneumatic expansion chuck (234) fixedly provided on the bottom plate (21) for driving the one provided on the sliding carriage (232), a vehicle roof shaft (235) rotatably provided at the upper end of the sliding carriage and coaxially connected to the chuck, and a driving assembly (236) provided in the sliding carriage (232) for driving the variable-diameter pneumatic expansion chuck (234) to rotate. The lifting mechanism (22) includes a lifting frame (221) slidably provided on the bottom plate (21), an oil cylinder (222) fixedly provided at the end of the bottom plate (21) for driving the lifting frame (221) to lift, and an arc-shaped support plate (223) fixedly provided at the upper end of the lifting frame (221).

2. The rear unwind mechanism in the slitter according to claim 1, characterized in that: The middle vehicle (1) includes a first vertical plate (11) and a second vertical plate (12) symmetrically arranged, a plurality of paper guide rollers (13) with both ends respectively rollingly connected to the first vertical plate (11) and the vertical plate, a backflow prevention assembly (14) for preventing the paper from flowing backward, and a tensioning assembly (15) for cooperating with the paper guide rollers (13) to tension the paper.

3. The rear unwind mechanism in the slitter according to claim 2, characterized in that: The backflow prevention assembly (14) includes a first seat (141) provided on the first vertical plate (11), a second seat (142) provided on the second vertical plate (12), a first rotating plate (143) hinged to the first seat (141), a second rotating plate (144) hinged to the second seat (142), a backflow prevention roller (145) with both ends respectively connected to the first rotating plate (143) and the second rotating plate (144), a second cylinder (146) with the cylinder body hinged to the first vertical plate (11) and the output end hinged to the first rotating plate (143), and a third cylinder (147) with the cylinder body hinged to the second vertical plate (12) and the output end hinged to the second rotating plate (144).

4. The rewinding mechanism of the slitter according to claim 2, characterized in that: The tensioning assembly (15) includes a fourth cylinder (151), a rotating shaft (152) with both ends respectively rollingly connected to the first vertical plate (11) and the second vertical plate (12), two connecting plates (153) fixedly provided on the rotating shaft (152), and a first roller (154) with both ends respectively rotatably connected to one end of the two connecting plates (153). The cylinder body of the fourth cylinder (151) is hinged to the first vertical plate (11), and the output end of the fourth cylinder (151) is hinged to the other end of the connecting plate (153).

5. The rear unwind mechanism in the slitter according to claim 1, characterized in that: The upper end of the sliding frame (232) includes a first cylinder (2321) extending in the X direction. The roof shaft (235) includes a plurality of ball bearings (351) whose outer rings abut against the inner wall of the first cylinder (2321), a rotating shaft (352) sleeved in the ball bearings (351), a first flange (353) fixedly connected to one end of the rotating shaft (352), and a limiting disk (354) sleeved on the rotating shaft (352) for limiting both ends of the first cylinder (2321). An air passage (30) communicating with the air inlet hole of the air expansion plug (234) is provided on the rotating shaft (352), and the first flange (353) is fixedly connected to one side of the air expansion plug (234).

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