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CN-224212046-U - Clamping and overturning device

CN224212046UCN 224212046 UCN224212046 UCN 224212046UCN-224212046-U

Abstract

The utility model discloses a clamping and overturning device which comprises a driving rotating shaft and four groups of paper clamping mechanisms respectively arranged on the peripheral surface of the driving rotating shaft in a fixed ring mode, wherein each group of paper clamping mechanisms comprises a fixed support fixedly arranged on the driving rotating shaft, at least one pair of first clamping arms and second clamping arms which are movably connected to the fixed support and can oppositely open and close, the first clamping arms are formed with guide baffle strips extending towards the opening and closing direction, the second clamping arms are provided with guide holes for the guide baffle strips to movably pass through, the first clamping arms, the second clamping arms and the guide baffle strips of the same group form a clamping opening for feeding and discharging a paper stack in a surrounding mode, and the clamping openings of the four groups of paper clamping mechanisms face four different directions respectively.

Inventors

  • WU ZHIKANG
  • WU ZHAOGUANG

Assignees

  • 佛山市兆广机械制造有限公司

Dates

Publication Date
20260508
Application Date
20250508

Claims (5)

  1. 1. A clamping and overturning device is characterized by comprising a driving rotating shaft (10) and four groups of paper clamping mechanisms which are fixedly arranged on the peripheral surface of the driving rotating shaft (10) in a surrounding mode, wherein each group of paper clamping mechanisms comprises a fixed support (11) fixedly arranged on the driving rotating shaft (10), at least one pair of first clamping arms (12) and second clamping arms (13) which are movably connected to the fixed support (11) and can oppositely open and close, the first clamping arms (12) are formed with guide baffle strips (14) which extend towards the opening and closing direction, the second clamping arms (13) are provided with guide holes (15) through which the guide baffle strips (14) movably pass, the clamping openings of the first clamping arms (12), the second clamping arms (13) and the guide baffle strips (14) in the same group are formed into a clamping opening for feeding and discharging paper stacks in a surrounding mode, and the clamping openings of the four groups of paper clamping mechanisms face four different directions respectively.
  2. 2. A clamping and turning device according to claim 1, wherein each group of paper clamping mechanisms further comprises at least one first clamping driving unit (122) for driving the first clamping arm (12) to act and at least one second clamping driving unit (132) for driving the second clamping arm (13) to act, and the first clamping arm (12) and the second clamping arm (13) are driven to open and close in opposite directions through the first clamping driving unit (122) and the second clamping driving unit (132).
  3. 3. A clamping and turning device according to claim 2, wherein each set of the paper clamping mechanisms further comprises a first supporting beam (121) and a second supporting beam (131), wherein the first supporting beam (121) and the second supporting beam (131) are respectively connected with the tail ends of the first clamping arm (12) and the second clamping arm (13) of the same set.
  4. 4. A clamping and turning device according to claim 3, wherein the first clamping driving unit (122) and the second clamping driving unit (132) of each group of the paper clamping mechanism are fixedly arranged on the fixed support (11), and the telescopic ends of the first clamping driving unit (122) and the telescopic ends of the second clamping driving unit (132) of the same group are respectively connected with the first supporting beam (121) and the second supporting beam (131).
  5. 5. The device of claim 1, wherein any two adjacent sets of paper clamping mechanisms are disposed at 90 degrees.

Description

Clamping and overturning device Technical Field The utility model relates to the technical field of paper processing, in particular to a clamping and overturning device. Background In the field of household paper production, a plurality of paper stacks can be formed by folding and stacking paper stacks through a folding machine, and the paper stacks need to be transferred to downstream slitting and packaging procedures. In the existing transfer device, the transfer device is generally composed of two opposite opening and closing clamping plates as described in patent CN217756005U and a turnover mechanism of a paper towel stacking machine, and after the fed paper stack is clamped by the clamping plates, the paper stack is turned over and transferred to a downstream conveyer belt by 180 degrees, so that the paper stack transfer is realized by the repeated actions. The transfer equipment adopts a single clamping structure, and the next operation can be performed only by resetting after the completion of one-time clamping, overturning and releasing, so that the production efficiency is low and the beat is limited. In addition, the existing clamping mechanism has the problems of unstable clamping, insufficient positioning precision and the like, and paper stack deviation or dumping is easy to cause. Disclosure of utility model The utility model aims to overcome the defects of the prior art and provide the clamping and overturning device which can continuously operate, is stable in clamping and accurate in positioning. In order to achieve the above purpose, the clamping and overturning device comprises a driving rotating shaft and four groups of paper clamping mechanisms which are respectively arranged on the peripheral surface of the driving rotating shaft in a surrounding mode, wherein each group of paper clamping mechanisms comprises a fixed support fixedly arranged on the driving rotating shaft, at least one pair of first clamping arms and second clamping arms which are movably connected on the fixed support and can oppositely open and close, the first clamping arms are formed with guide baffle bars which extend towards the opening and closing direction, the second clamping arms are provided with guide holes through which the guide baffle bars can movably pass, the clamping openings for feeding paper stacks are formed by encircling the first clamping arms, the second clamping arms and the guide baffle bars in the same group, and the clamping openings of the four groups of paper clamping mechanisms face four different directions respectively. Further, each group of paper clamping mechanism further comprises at least one first clamping driving unit for driving the first clamping arm to act and at least one second clamping driving unit for driving the second clamping arm to act, wherein the first clamping driving unit and the second clamping driving unit are used for driving the first clamping arm and the second clamping arm to open and close oppositely. Further, each group of paper clamping mechanism further comprises a first supporting beam and a second supporting beam, wherein the first supporting beam and the second supporting beam are respectively connected with the tail ends of the first clamping arm and the second clamping arm of the same group. Further, the first clamping driving unit and the second clamping driving unit of each group of paper clamping mechanism are fixedly arranged on the fixed support, and the telescopic ends of the first clamping driving unit and the second clamping driving unit of the same group are respectively connected with the first supporting beam and the second supporting beam. Further, any two adjacent paper clamping mechanisms are arranged at 90 degrees. The paper stack clamping mechanism has the beneficial effects that 1) four groups of paper clamping mechanisms work alternately, idle stroke time is reduced, production beat is improved, 2) clamping is stable, a guide baffle bar and a guide hole are matched, opening and closing precision is improved, a supporting beam ensures synchronous action of multiple clamping arms, 3) the structure is compact, axially arranged clamping arms and modularized design adapt to paper stacks with different sizes, 4) positioning is accurate, and the guide baffle bar is used as a paper stack stop position, so that consistency of clamping positions is ensured. Drawings Fig. 1 is a schematic view of a clamp turnover device. Fig. 2 is a schematic perspective view of the clamping and turning device. Fig. 3 is a schematic front view of the clamp turnover device. Fig. 4 is a schematic view of the use of the clamp turnover device. The device comprises a 10-driving rotating shaft, a 11-fixing support, a 12-first clamping arm, a 121-first supporting beam, a 122-first clamping driving unit, a 13-second clamping arm, a 131-second supporting beam, a 132-second clamping driving unit, a 14-guiding barrier and a 15-guiding hole. Detailed Description The follow