Rotating paper stop device for box stitching machine

Abstract

The present invention discloses a rotating paper stopper for a box nailing machine, comprising a base, a limiting mechanism and a rotating paper stopper; the limiting mechanism comprises a cylinder and a limiting block; the cylinder is fixed on the base, the limiting block is connected to the piston rod of the cylinder, and a limiting surface is provided on the limiting block; the rotating paper stopper comprises a rotating shaft, a ratchet, and a rotating stopper; the rotating shaft is rotatably connected to the base, the ratchet is fixed on the rotating shaft, four limiting parts are evenly provided circumferentially on the outer side surface of the ratchet, and the limiting parts are provided with contact surfaces for contacting with the limiting surfaces to achieve the purpose of limiting, and the contact surface of one limiting part coincides with the limiting surface; there are four rotating stoppers, and the four rotating stoppers are fixedly connected to the outer side surface of the rotating shaft; and a paper stopper surface is provided on the rotating stopper. The present invention provides a rotating paper stopper for a box nailing machine with faster paper stopper speed and better quality, which improves production efficiency, ensures the quality of paper stopper shaping, and thus improves the speed of the whole machine.

Description

Technical Field

[0001] The invention relates to the technical field of packaging box manufacturing equipment, and in particular to a rotating paper blocking device of a box nailing machine. Background Art

[0002] The mechanical manufacturing industry was not proposed until the end of the 19th century. With the promotion of the industrial revolution, traditional handicrafts were constantly replaced by mechanical industries, which reduced labor intensity and improved overall production efficiency and product quality. The mechanical manufacturing industry began to be closely integrated with the development of natural sciences and developed in the direction of high technology, intelligence and information technology.

[0003] In the fully automatic box-stitching machine, there is a short pause before the cardboard enters the box-stitching process, during which the cardboard is slightly shaped so that it can be better shaped when entering the box-stitching process. The existing paper-stopping mechanism achieves the purpose of paper-stopping by controlling the up and down movement of the baffle plate by the cylinder, but this device that controls the up and down movement of the baffle plate by the cylinder is affected by the assembly quality, which sometimes causes uneven paper-stopping and unstable paper-stopping quality. It is also constrained by the time required for the reciprocating stroke of the cylinder, which restricts the box-stitching speed. Summary of the invention

[0004] In order to solve the above-mentioned existing technical problems, the present invention provides a rotating paper stopper for a box stitching machine.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A rotating paper stopper device for a box stitching machine, comprising a base, a limiting mechanism, and a rotating paper stopper mechanism;

[0006] The limiting mechanism comprises a cylinder and a limiting block; the cylinder is fixed on a base, the extension direction of the cylinder piston rod is a vertical direction, the limiting block is connected to the cylinder piston rod, and a limiting surface is provided on the limiting block, and the limiting surface is a vertical plane;

[0007] The rotating paper blocking mechanism includes a rotating shaft, a ratchet, and a rotating block; the rotating shaft is rotatably connected to the base and its axis is perpendicular to the extension and retraction direction of the cylinder piston rod, the ratchet is fixed on the rotating shaft, and four limiting parts are evenly arranged circumferentially on the outer side surface of the ratchet, and the limiting parts are provided with contact surfaces for contacting with the limiting surfaces to achieve the limiting purpose, and the contact surface of one of the limiting parts coincides with the limiting surface; there are four rotating blocks, and the four rotating blocks are fixedly connected to the outer side surface of the rotating shaft, and the positions of the four rotating blocks and the four limiting parts correspond one by one in the axial direction of the rotating shaft; the rotating block is provided with a paper blocking surface, and the contact surface and the paper blocking surface are vertical planes or horizontal planes.

[0008] Furthermore, the limit mechanism also includes a slide seat, the slide seat is fixed on the base, a slide slot is provided in the slide seat, the limit block is provided in the slide slot and vertically slidably connected to the slide slot. The setting of the slide seat ensures the vertical movement direction of the limit block and prevents the limit block from shifting during the sliding process.

[0009] Furthermore, the limiting mechanism also includes a support seat and a cylinder fixing seat, the support seat is fixed on the base, the cylinder fixing seat and the slide seat are fixed on the support seat, and the cylinder is fixed on the cylinder fixing seat.

[0010] Furthermore, a slide cover plate is provided on the slide.

[0011] Furthermore, the rotating paper blocking mechanism also includes a bearing seat, the bearing seat is fixed on the base, and the rotating shaft is installed in the bearing seat.

[0012] Furthermore, an overrunning clutch and a bearing are installed side by side in the bearing seat, and the rotating shaft is installed on the overrunning clutch and the bearing.

[0013] Furthermore, the rotating paper blocking mechanism also includes a connecting sleeve, which is arranged on the outer side of the rotating shaft, and the rotating stopper is arranged on the connecting sleeve.

[0014] Furthermore, the connecting sleeve is connected to the rotating block via a pin, and a torsion spring is provided on the outer sleeve of the pin.

[0015] Furthermore, there are eight rotating stoppers in a group of four, and two groups of rotating stoppers are respectively arranged at both ends of the rotating shaft.

[0016] The working principle of the present invention is as follows: the limit mechanism is used to limit the degree of each rotation of the ratchet to 90°, the cylinder drives the limit block to move upward in the vertical direction, when the limit surface of the limit block contacts the contact surface of one of the limit parts of the ratchet, the ratchet is blocked by the limit block, and the limit mechanism realizes the limit function. When the ratchet rotates again, the cylinder drives the limit block to move downward in the vertical direction, the contact surface of the ratchet limit part does not contact the limit surface of the limit block, and the ratchet can rotate with the rotating shaft until the next limit part contacts the contact surface of the limit block to achieve another limit. Under the action of the limit mechanism, the rotating block of the rotating paper stop mechanism rotates at an angle of 90° each time. With the assistance of the overrunning clutch, it is ensured that the paper stop surface of the rotating block in the paper stop position is always in a vertical state when waiting to work, thereby ensuring the quality of the paper stop shaping. In addition, the rotating shaft completes four paper stop operations in one rotation, which improves production efficiency and thus improves the speed of the box nailing machine.

[0017] The present invention provides a rotary paper blocking device for a box nailing machine with faster paper blocking speed and better quality. The device can quickly and stably block paperboard through automation, thereby improving production efficiency, ensuring the quality of paper blocking shaping, and thus improving the speed of the entire machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention.

[0019] Figure 2 It is a structural schematic diagram of the present invention from another perspective.

[0020] Figure 3 It is a structural schematic diagram of the slide seat in the present invention.

[0021] In the figure: 1 base, 2 limiting mechanism, 3 rotating paper stop mechanism, 4 left support seat, 5 cylinder fixed seat, 6 slide seat, 7 cylinder, 8 limiting block, 9 slide groove, 10 slide seat cover plate, 11 limiting surface, 12 bearing seat, 13 rotating shaft, 14 ratchet, 15 connecting sleeve, 16 rotating stop block, 17 right support seat, 18 overrunning clutch, 19 bearing, 20 limiting part, 21 contact surface, 22 paper stop surface, 23 pin shaft, 24 stop block fixing plate, 25 torsion spring. DETAILED DESCRIPTION

[0022] The embodiments of the present invention are further described below in conjunction with the accompanying drawings.

[0023] See also Figure 1-3 A rotating paper blocking device for a box stitching machine includes a base 1, a limiting mechanism 2, and a rotating paper blocking mechanism 3.

[0024] The limiting mechanism 2 includes a left supporting seat 4, a cylinder fixing seat 5, a sliding seat 6, a cylinder 7, and a limiting block 8.

[0025] The left support seat 4 is fixed on the left side of the base 1, and the cylinder fixing seat 5 and the slide seat 6 are both fixed on the left support seat 4. A slide groove 9 is provided in the slide seat 6, and a slide seat cover plate 10 is provided on the slide seat 6. The cylinder 7 is fixed on the cylinder 7 fixing seat, and the limit block 8 is connected to the piston rod of the cylinder 7. The limit block 8 is provided in the slide groove 9 and is slidably connected with the slide groove 9. Specifically, the telescopic direction of the piston rod of the cylinder 7 and the sliding direction of the limit block 8 are both vertical directions. Under the action of the cylinder 7, the limit block 8 reciprocates in the vertical direction in the slide groove 9 of the slide seat 6. A limit surface 11 is provided on the top of the limit block 8, and the limit surface 11 is a vertical plane. An oil groove is provided on the limit block 8.

[0026] The rotating paper blocking mechanism 3 includes a bearing seat 12 , a rotating shaft 13 , a ratchet 14 , a connecting sleeve 15 , and a rotating block 16 .

[0027] A right support seat 17 is provided on the right side of the base 1. Two bearing seats 12 are provided, which are fixed on the left support seat 4 and the right support seat 17 respectively. An overrunning clutch 18 and a bearing 19 are installed side by side in the bearing seat 12. The rotating shaft 13 is installed on the overrunning clutch 18 and the bearing seat 12. Specifically, in this embodiment, the overrunning clutch 18 can use a wedge-type one-way clutch without bearing support to limit the turning direction of the rotating shaft 13 and prevent it from rotating in the opposite direction so that it can only rotate in one direction. The axis of the rotating shaft 13 is perpendicular to the extension and retraction direction of the piston rod of the cylinder 7. The ratchet 14 is coaxially fixed to the left side of the rotating shaft 13, and four limiting parts 20 are evenly arranged on the outer side surface of the ratchet 14 in a circumferential direction. The limiting part 20 is provided with a contact surface 21 used to contact with the limiting surface 11 to achieve the limiting purpose, and one of the contact surfaces 21 coincides with the limiting surface 11. The contact surface 21 of the limiting portion 20 is a vertical plane or a horizontal plane, and the contact surfaces 21 of the four limiting portions 20 on the ratchet 14 contact the limiting surface 11 of the limiting block 8 in turn, thereby limiting the rotation of the rotating shaft 13. The connecting sleeve 15 is arranged on the outer side of the rotating shaft 13. Four rotating blocks 16 are arranged on the connecting sleeve 15, and the positions of the four rotating blocks 16 on the connecting sleeve 15 and the four limiting portions 20 correspond one by one in the axial direction of the rotating shaft 13. In this embodiment, two connecting sleeves 15 are arranged, and each connecting sleeve 15 is provided with four rotating blocks 16. The rotating block 16 is provided with a paper blocking surface 22. The paper blocking surface 23 is a vertical plane or a horizontal plane, and the paper blocking surfaces 23 of the four rotating blocks are in the paper blocking position in turn to block the paperboard.

[0028] The connecting sleeve 15 is connected to the rotating block 16 through a pin 23. In this embodiment, a block fixing plate 24 is provided on both the left and right sides of the connecting sleeve 15, and pin holes are provided on the block fixing plate 24 and the rotating block 16, and the pin 23 is inserted into the pin holes. A torsion spring 25 is provided on the outer side of the pin 23, and the rotating block 16 can rotate 90° under the action of external force and can be reset in time by the elastic force of the torsion spring 25 when the external force is lost, which can prevent the rotating block 16 from rotating around the pin 23, thereby ensuring that the paper blocking surface 23 of the rotating block 16 is on a horizontal or vertical plane. This design of the rotating block 16 allows the rotating block 16 to be detachably connected to the rotating shaft 13, which is convenient for replacement and maintenance.

[0029] The working principle of the present invention is as follows: the limit mechanism 2 is used to limit the degree of rotation of the ratchet 14 to 90° each time, the cylinder 7 drives the limit block 8 to move upward in the vertical direction, and when the limit surface 11 of the limit block 8 contacts the contact surface 21 of one of the limit parts 20 of the ratchet 14, the ratchet 14 is blocked by the limit block 8, and the limit mechanism 2 realizes the limit function. When the ratchet 14 rotates again, the cylinder 7 drives the limit block 8 to move downward in the vertical direction, and the contact surface 21 of the limit part 20 of the ratchet 14 does not contact the limit surface 11 of the limit block 8, and the ratchet 14 can rotate with the rotating shaft 13 until the next limit part 20 contacts the contact surface 21 of the limit block 8 to realize the limit again. Under the action of the limit mechanism 2, the rotating paper stop mechanism 3 rotates the rotating block 16 by 90° each time, and with the assistance of the overrunning clutch 18, it is ensured that the paper stop surface 23 of the rotating block 16 in the paper stop position is always in a vertical state when waiting to work.

[0030] The rotating paper blocking device of the box nailing machine of the present invention effectively blocks the incoming paperboard in a standardized, mechanized and automated manner, which ensures the quality of paper blocking and improves the efficiency of paper blocking.

Claims

1. A rotating paper stopper for a box stapler, comprising a base, characterized in that: It also includes a limit mechanism and a rotating paper stop mechanism; The limiting mechanism comprises a cylinder and a limiting block; the cylinder is fixed on a base, the extension direction of the cylinder piston rod is a vertical direction, the limiting block is connected to the cylinder piston rod, and a limiting surface is provided on the limiting block, and the limiting surface is a vertical plane; The rotating paper blocking mechanism comprises a rotating shaft, a ratchet and a rotating block; the rotating shaft is rotatably connected to the base and its axis is perpendicular to the extension and contraction direction of the cylinder piston rod; the ratchet is fixed on the rotating shaft, and four limiting parts are evenly arranged on the outer side surface of the ratchet in a circumferential direction; the limiting parts are provided with contact surfaces for contacting with the limiting surfaces to achieve the purpose of limiting, and the contact surface of one of the limiting parts coincides with the limiting surface; there are four rotating blocks, and the four rotating blocks are fixedly connected to the outer side surface of the rotating shaft, and the positions of the four rotating blocks and the four limiting parts correspond one by one in the axial direction of the rotating shaft; a paper blocking surface is provided on the rotating block, and the contact surface and the paper blocking surface are vertical planes or horizontal planes; The rotating paper blocking mechanism further comprises a bearing seat, the bearing seat is fixed on the base, the rotating shaft is installed in the bearing seat, an overrunning clutch and a bearing are installed side by side in the bearing seat, and the rotating shaft is installed on the overrunning clutch and the bearing; The rotating paper blocking mechanism further comprises a connecting sleeve, the connecting sleeve is arranged on the outer side of the rotating shaft, the rotating block is arranged on the connecting sleeve, the connecting sleeve and the rotating block are connected via a pin shaft, and a torsion spring is arranged on the outer side of the pin shaft; The limiting mechanism further comprises a slide seat, the slide seat is fixed on the base, a slide slot is arranged in the slide seat, the limiting block is arranged in the slide slot and is vertically slidably connected with the slide slot; The limiting mechanism further comprises a support seat and a cylinder fixing seat, wherein the support seat is fixed on the base, the cylinder fixing seat and the slide seat are fixed on the support seat, and the cylinder is fixed on the cylinder fixing seat; The slide seat is provided with a slide seat cover plate; There are eight rotating stoppers in a group of four, and two groups of rotating stoppers are respectively arranged at two ends of the rotating shaft.

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