Longitudinal cutter positioning device and longitudinal cutting equipment using same

Abstract

The utility model discloses a longitudinal knife positioning device and a longitudinal cutting device using the same, and mainly relates to the technical field of longitudinal cutting equipment, the longitudinal knife positioning device comprises a plurality of crimping mechanisms, a positioning belt and a synchronous transmission mechanism with a synchronous belt, the length direction of the positioning belt is parallel to the length direction of the synchronous belt, and the synchronous belt is located on the upper side of the positioning belt. And the crimping mechanism is located between the synchronous belt and the positioning belt to do up-down crimping motion, the crimping mechanism comprises a vertical lifting mechanism and a crimping assembly, the crimping assembly is in transmission connection with the vertical lifting mechanism, and the vertical lifting mechanism drives the crimping assembly to do lifting motion in the vertical direction, so that crimping fixation of the synchronous belt or the positioning belt is formed. Preferably, the vertical lifting mechanism further comprises a photoelectric sensing piece and a photoelectric sensor, the photoelectric sensor is connected with the synchronous belt, the photoelectric sensing piece is fixed on the crimping assembly, the accuracy of the transmission position is further improved, and the position of a single longitudinal cutter device in the multiple longitudinal cutter devices can be adjusted.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of longitudinal cutting equipment, and particularly relates to a longitudinal knife positioning device and a longitudinal cutting equipment using the same. Background Art

[0002] In cardboard (mainly corrugated paper) cutting equipment, it usually includes a cross-cutting device and a longitudinal cutting device. The longitudinal cutting device can leave longitudinal indentations and longitudinal slits required for forming cartons on the cardboard moving along a preset stroke. In the prior art, multiple longitudinal knife devices can achieve synchronous movement of all multiple longitudinal knife devices, but this method is not convenient for adjusting the position of a single longitudinal knife device among multiple longitudinal knife devices. Summary of the Utility Model

[0003] The main object of the utility model is to propose a longitudinal knife positioning device, which can achieve the adjustment of the position of a single longitudinal knife device among multiple longitudinal knife devices, aiming to solve the technical problem that it is not convenient to adjust the position of a single longitudinal knife device among multiple longitudinal knife devices in the existing carton cutting machine.

[0004] To achieve the above object, the utility model proposes a longitudinal knife positioning device, which includes a plurality of pressing mechanisms, a positioning belt and a synchronous transmission mechanism. The pressing mechanism includes a connecting substrate, and the bottom of the connecting substrate is connected with a longitudinal knife device.

[0005] The synchronous transmission mechanism includes a synchronous belt, a driving wheel, a driven wheel and a driving motor. A synchronous belt is arranged between the driving wheel and the driven wheel, and the output end of the driving motor is in transmission connection with the driving wheel to drive the synchronous belt and the driven wheel to rotate. The length direction of the positioning belt is parallel to the length direction of the synchronous belt, and the synchronous belt is located above the positioning belt.

[0006] The pressing mechanism makes an up-and-down pressing movement between the synchronous belt and the positioning belt. The pressing mechanism further includes a vertical lifting mechanism and a pressing component, and the vertical lifting mechanism is installed on the connecting substrate.

[0007] The pressing component includes a top pressing part with a fixed position, a movable pressing part in the middle and a bottom pressing part with a fixed position along the vertical direction. The movable pressing part includes an upper pressing part at the upper part and a lower pressing part at the lower part. The vertical lifting mechanism is in transmission connection with the movable pressing part, so that when moving upward, the top pressing part and the upper pressing part can form a pressing and fixing of the synchronous belt; when moving downward, the lower pressing part and the bottom pressing part can form a pressing and fixing of the positioning belt.

[0008] Through the combination of the above structures, the crimping assembly can move up and down driven by the vertical lifting mechanism, realizing the switching between the vertical knife positioning device and the crimping fixation of the positioning belt and the synchronous belt. When the vertical knife positioning device forms a crimping fixation with the synchronous belt, the synchronous transmission mechanism drives the synchronous belt to move, and the vertical knife positioning device moves along with it, realizing the position adjustment of the vertical knife device connected to the vertical knife positioning device. Then, it switches to the crimping fixation between the vertical knife positioning device and the positioning belt to fix the position of the vertical knife device. The utility model is assembled with the vertical knife device and can realize the position adjustment of a single vertical knife device among multiple vertical knife devices.

[0009] During the normal operation of this solution, each vertical knife positioning device is crimped and fixed to the positioning belt, and the cardboard cutting and indentation work are carried out among the vertical knife positioning devices according to the preset distribution spacing. In a general process of adjusting the position of a single vertical knife device, the vertical lifting mechanism first drives the crimping assembly to rise to form a crimping fixation with the synchronous belt. The synchronous transmission mechanism moves according to the preset stroke, thereby driving the vertical knife positioning device and the vertical knife device connected to the vertical knife positioning device to move to the preset position. After adjusting the position, the vertical lifting mechanism drives the crimping assembly to descend. After forming a crimping fixation with the positioning belt, the vertical knife device can normally carry out the cardboard cutting and indentation work.

[0010] Preferably, the vertical lifting mechanism includes a cylinder with a transmission air rod, a photoelectric sensing element, and a photoelectric sensor. The crimping assembly includes a fixed pressing plate, a movable pressing plate, and a fixing screw.

[0011] The fixed pressing plate includes, from bottom to top, a horizontal mounting plate, a first vertical connecting portion, and a top horizontal downward pressing plate that are sequentially connected. The first vertical connecting portion is provided with a vertical limiting groove, and the fixed pressing plate is mounted on the top of the connecting substrate through the horizontal mounting plate.

[0012] The movable pressing plate includes, from bottom to top, a horizontal downward pressing plate, a second vertical connecting portion, and a horizontal upward pressing plate. The second vertical connecting portion is provided with a fixing screw hole corresponding to the fixing screw. The fixing screw includes a fixed connecting portion and a limiting portion. The thickness of the fixed connecting portion is less than the width of the vertical limiting groove, and the width / diameter of the limiting portion is greater than the width of the vertical limiting groove, so that the fixing screw can pass through the vertical limiting groove and be locked into the fixing screw hole.

[0013] An air rod hole penetrating from the bottom to the top is opened in the connecting substrate. The cylinder is installed at the bottom of the connecting substrate, and the transmission air rod passes through the air rod hole and is in transmission connection with the movable pressing plate. The photoelectric sensor is connected to the synchronous belt, and the photoelectric sensing element is mounted on the second vertical connecting portion. The movable pressing plate moves up and down along the vertical limiting groove of the fixed pressing plate under the drive of the cylinder. When moving up, the top horizontal downward pressing plate and the horizontal upward pressing plate can form a crimping fixation with the synchronous belt; when moving down, the horizontal downward pressing plate and the connecting substrate can form a crimping fixation with the positioning belt.

[0014] The structural combination of this preferred solution not only realizes the lifting movement of the crimping component driven by the vertical lifting mechanism and the switching of the crimping and fixing of the longitudinal knife positioning device with the positioning belt and the synchronous belt through the cooperation with various components, but also in this preferred solution, the connecting substrate is used to replace the upper pressing part at the bottom, and the omission of components makes the structure more compact. The matching design of the fixing screws and the vertical limiting grooves is beneficial to reducing the left - right swaying degree of the movable pressing plate in the vertical direction during the lifting movement. The cooperation between the photoelectric sensing element and the photoelectric sensor is conducive to accurately judging the moving position of the movable pressing plate, improving the accuracy of the crimping position, reducing the damage caused by inaccurate component crimping, and having a high degree of mechanization.

[0015] Further preferably, when the height between the connecting substrate and the transverse lower pressing plate is too high to crimp and fix the positioning belt, a height - adjusting block is arranged between the top of the connecting substrate and the transverse lower pressing plate to adjust the crimping height between the connecting substrate and the transverse lower pressing plate to be appropriate.

[0016] The present utility model also provides a longitudinal cutting device, including the longitudinal knife positioning device according to any one of the foregoing solutions.

[0017] Preferably, the longitudinal cutting device includes a frame. A slide rail parallel to the length direction of the synchronous belt is arranged at the bottom of the frame. A slide - rail connecting seat is arranged on the connecting substrate, and the slide - rail connecting seat is slidably connected to the slide rail. Adopting the sliding connection mode of the slide rail and the slide - rail connecting seat makes the position adjustment of the longitudinal knife positioning device more smooth under the transmission connection of the synchronous transmission mechanism.

[0018] Further preferably, the slide rail is convexly arranged. The two outer sides of the slide rail have convex outer edges. The slide - rail connecting seat has a groove part corresponding to and matching the slide rail. The two inner sides of the groove part have recesses, which are in shape - matching with the convex outer edges of the slide rail to form an engagement. With the preferred structural cooperation between the slide - rail connecting seat and the slide rail, the sliding connection is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following - described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0020] Figure 1 It is a schematic structural diagram of an embodiment of the longitudinal cutting device of the present utility model;

[0021] Figure 2 It is a top - view schematic diagram of an embodiment of the longitudinal knife positioning device of the present utility model;

[0022] Figure 3Schematic diagram of the process of the crimping mechanism of the present utility model being crimped and fixed to the synchronous belt and the positioning belt respectively;

[0023] Figure 4 Schematic perspective view of the preferred embodiment of the longitudinal knife positioning device of the present utility model;

[0024] Figure 5 Another perspective schematic perspective view of the preferred embodiment of the longitudinal knife positioning device of the present utility model;

[0025] Figure 6 Exploded schematic perspective view of the preferred embodiment of the longitudinal knife positioning device of the present utility model.

[0026] In the drawings: 1 - longitudinal knife positioning device, 11 - connection substrate, 1101 - air rod hole, 111 - height adjustment block, 112 - slide rail connection seat, 1121 - groove part, 11211 - depression, 12 - crimping mechanism, 121 - vertical lifting mechanism, 1211 - cylinder, 12111 - transmission air rod, 1212 - photoelectric induction part, 1213 - photoelectric sensor, 122 - crimping assembly, 1221 - top pressing part, 1222 - movable pressing part, 12221 - upper pressing part, 12222 - lower pressing part, 1223 - bottom upper pressing part, 1224 - fixed pressing plate, 12241 - horizontal mounting plate, 12242 - first vertical connection part, 122421 - vertical limiting groove, 12243 - top horizontal lower pressing plate, 1225 - movable pressing plate, 12251 - horizontal lower pressing plate, 12252 - second vertical connection part, 122521 - fixed screw hole, 12253 - horizontal upper pressing plate, 1226 - fixed screw, 1226 - fixed screw, 12261 - fixed connection part, 12262 - limiting part, 122 - crimping assembly, 13 - positioning belt, 14 - synchronous transmission mechanism, 141 - synchronous belt, 142 - driving wheel, 143 - driven wheel, 144 - driving motor, 2 - frame, 21 - slide rail, 211 - protruding outer edge, 3 - longitudinal knife device.

[0027] The realization, functional features and advantages of the object of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0029] It should be noted that if there are directional indications involved in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0030] In addition, if there are descriptions such as "first", "second", etc. involved in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0031] This application provides a vertical knife positioning device 1, as Figures 1 to 4 shown, which includes a plurality of crimping mechanisms 12, a positioning belt 13 and a synchronous transmission mechanism 14. The crimping mechanism 12 includes a connecting substrate 11, and the bottom of the connecting substrate 11 is connected to the vertical knife device 3.

[0032] The synchronous transmission mechanism 14 includes a synchronous belt 141, a driving wheel 142, a driven wheel 143 and a driving motor 144. A synchronous belt 141 is provided between the driving wheel 142 and the driven wheel 143. The output end of the driving motor 144 is in transmission connection with the driving wheel 142 to drive the synchronous belt 141 and the driven wheel 143 to rotate. The length direction of the positioning belt 13 is parallel to the length direction of the synchronous belt 141, and the synchronous belt 141 is located above the positioning belt 13.

[0033] The crimping mechanism 12 makes an up-and-down crimping movement between the synchronous belt 141 and the positioning belt 13. The crimping mechanism 12 further includes a vertical lifting mechanism 121 and a crimping component 122. The vertical lifting mechanism 121 is installed on the connecting substrate 11.

[0034] The crimping component 122 includes a top pressing member 1221 with a fixed position, a movable pressing member 1222 in the middle and a bottom pressing member 1223 with a fixed position along the vertical direction. The movable pressing member 1222 includes an upper pressing portion 12221 and a lower pressing portion 12222. The vertical lifting mechanism 121 is in transmission connection with the movable pressing member 1222, so that when moving upward, the top pressing member 1221 and the upper pressing portion 12221 can form a crimping fixation on the synchronous belt 141; when moving downward, the lower pressing portion 12222 and the bottom pressing member 1223 can form a crimping fixation on the positioning belt 13.

[0035] Through the combination of the above structures, the crimping assembly 122 can move up and down under the drive of the vertical lifting mechanism 121, and realize the up and down crimping movement between the longitudinal knife positioning device 1, the positioning belt 13 and the synchronous belt 141. When the longitudinal knife positioning device 1 forms a crimping fixation with the synchronous belt 141, the synchronous transmission mechanism 14 drives the synchronous belt 141 to move, and the longitudinal knife positioning device 1 moves along with it, realizing the position adjustment of the longitudinal knife device 3 connected to the longitudinal knife positioning device 1. Then, it switches to the longitudinal knife positioning device 1 forming a crimping fixation with the positioning belt 13 to fix the position of the longitudinal knife device 3.

[0036] In a general process of adjusting the position of a single longitudinal knife device 3, the vertical lifting mechanism 121 first drives the crimping assembly 122 to rise to form a crimping fixation with the synchronous belt 141. The synchronous transmission mechanism 14 moves according to a preset stroke, thereby driving the longitudinal knife positioning device 1 and the longitudinal knife device 3 connected to the longitudinal knife positioning device 1 to move to a preset position. After adjusting the position, the vertical lifting mechanism 121 drives the crimping assembly 122 to descend. After forming a crimping fixation with the positioning belt 13, the longitudinal knife device 3 can normally perform the cutting and indentation work on the cardboard.

[0037] In some preferred embodiments, as Figures 4 to 6 shown, the vertical lifting mechanism 121 includes a cylinder 1211 with a transmission air rod 12111, a photoelectric sensing member 1212, and a photoelectric sensor 1213 (not shown in the figure). The crimping assembly 122 includes a fixed pressing plate 1224, a movable pressing plate 1225, and a fixing screw 1226.

[0038] The photoelectric sensing member 1212 is made of a photoelectrically sensitive material. The photoelectric sensor 1213 captures the position signal of the photoelectric sensing member 1212 and transmits it to the PLC, and the cylinder 1211 is controlled to perform corresponding actions. In a specific embodiment, a long screw is used as the photoelectric sensor 1213.

[0039] The fixed pressing plate 1224 includes, from bottom to top, a horizontal mounting plate 12241, a first vertical connecting portion 12242, and a top horizontal pressing plate 12243 that are sequentially connected. The first vertical connecting portion 12242 is provided with a vertical limiting groove 122421. The fixed pressing plate 1224 is mounted on the top of the connecting substrate 11 through the horizontal mounting plate 12241.

[0040] The movable pressing plate 1225 includes, from bottom to top, a horizontally downward pressing plate 12251, a second vertical connecting portion 12252, and a horizontally upward pressing plate 12253 that are sequentially connected. The second vertical connecting portion 12252 is provided with fixing screw holes 122521 corresponding to the fixing screws 1226. The fixing screws 1226 include a fixing connection portion 12261 and a limiting portion 12262. The thickness of the fixing connection portion 12261 is less than the width of the vertical limiting groove 122421, and the width / diameter of the limiting portion 12262 is greater than the width of the vertical limiting groove 122421, so that the fixing screws 1226 can pass through the vertical limiting groove 122421 and be locked into the fixing screw holes 122521.

[0041] The connecting substrate 11 is provided with a pneumatic rod hole 1101 that penetrates from the bottom to the top. The air cylinder 1211 is installed at the bottom of the connecting substrate 11. The transmission pneumatic rod 12111 passes through the pneumatic rod hole 1101 and is in transmission connection with the movable pressing plate 1225. The photoelectric inductor 1213 is connected to the synchronous belt 141. The photoelectric sensing element 1212 is installed on the second vertical connecting portion 12252. The movable pressing plate 1225 moves up and down along the vertical limiting groove 122421 of the fixed pressing plate 1224 under the drive of the air cylinder 1211. When moving up, the top horizontally downward pressing plate 12243 and the horizontally upward pressing plate 12253 can form a crimping and fixing of the synchronous belt 141; when moving down, the horizontally downward pressing plate 12251 and the connecting substrate 11 can form a crimping and fixing of the positioning belt 13. In a specific embodiment, the transmission pneumatic rod 12111 is in transmission connection with the horizontally downward pressing plate 12251.

[0042] In a further preferred embodiment, when the distance between the connecting substrate 11 and the horizontally downward pressing plate 12251 is too high to crimp and fix the positioning belt 13, a height adjusting block 111 is provided between the top of the connecting substrate 11 and the horizontally downward pressing plate 12251 to adjust the crimping height between the connecting substrate 11 and the horizontally downward pressing plate 12251 to be appropriate.

[0043] In a further preferred embodiment, the side profile of the movable pressing plate 1225 is in a C shape.

[0044] This application also provides a longitudinal cutting device, as Figure 1 and Figure 4 shown, including the longitudinal knife positioning device 1 of any of the foregoing solutions.

[0045] In some preferred embodiments, the longitudinal cutting device includes a frame 2. A slide rail 21 parallel to the length direction of the synchronous belt 141 is provided at the bottom of the frame 2. A slide rail connecting seat 112 is provided on the connecting substrate 11, and the slide rail connecting seat 112 is slidably connected to the slide rail 21.

[0046] In some preferred embodiments, as Figure 4 and Figure 5As shown, the slide rail 21 is convexly provided. The two outer sides of the slide rail 21 have convex outer edges 211. The slide rail connecting seat 112 has a groove portion 1121 corresponding and matching with the slide rail 21. The two inner sides of the groove portion 1121 have recessed positions 11211, which are in shape fit with the convex outer edges 211 of the slide rail 21 to form an engagement.

[0047] The above are only the preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of the present utility model under the inventive concept of the present utility model, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present utility model.

Claims

1. A longitudinal knife positioning device, characterized in that, It includes a number of crimping mechanisms (12), a positioning belt (13) and a synchronous transmission mechanism (14). The crimping mechanism (12) includes a connecting substrate (11), and the bottom of the connecting substrate (11) is connected to the longitudinal knife device (3). The synchronous transmission mechanism (14) includes a synchronous belt (141), a driving wheel (142), a driven wheel (143) and a driving motor (144). The synchronous belt (141) is arranged between the driving wheel (142) and the driven wheel (143). The output end of the driving motor (144) is in transmission connection with the driving wheel (142) to drive the synchronous belt (141) and the driven wheel (143) to rotate. The length direction of the positioning belt (13) is parallel to the length direction of the synchronous belt (141), and the synchronous belt (141) is located above the positioning belt (13). The crimping mechanism (12) makes an up-and-down crimping movement between the synchronous belt (141) and the positioning belt (13). The crimping mechanism (12) further includes a vertical lifting mechanism (121) and a crimping component (122). The vertical lifting mechanism (121) is installed on the connecting substrate (11). The crimping component (122) includes a top pressing part (1221) with a fixed position, a movable pressing part (1222) in the middle and a bottom pressing part (1223) with a fixed position along the vertical direction. The movable pressing part (1222) includes an upper pressing part (12221) at the upper part and a lower pressing part (12222) at the lower part. The vertical lifting mechanism (121) is in transmission connection with the movable pressing part (1222), so that when moving upward, the top pressing part (1221) and the upper pressing part (12221) can form a crimping fixation on the synchronous belt (141); when moving downward, the lower pressing part (12222) and the bottom pressing part (1223) can form a crimping fixation on the positioning belt (13).

2. The longitudinal cutter positioning device according to claim 1, wherein, The vertical lifting mechanism (121) includes a cylinder (1211) with a transmission air rod (12111), a photoelectric induction part (1212) and a photoelectric inductor (1213). The crimping component (122) includes a fixed pressing plate (1224), a movable pressing plate (1225) and a fixing screw (1226). The fixed pressing plate (1224) includes a horizontal mounting plate (12241), a first vertical connecting part (12242) and a top horizontal pressing plate (12243) connected in sequence from bottom to top. The first vertical connecting part (12242) is provided with a vertical limiting groove (122421). The fixed pressing plate (1224) is installed on the top of the connecting substrate (11) through the horizontal mounting plate (12241). The movable pressing plate (1225) includes, from bottom to top, a transverse lower pressing plate (12251), a second vertical connecting portion (12252), and a transverse upper pressing plate (12253) that are connected in sequence. The second vertical connecting portion (12252) is provided with a fixing screw hole (122521) corresponding to the fixing screw (1226). The fixing screw (1226) includes a fixing connection portion (12261) and a limiting portion (12262). The thickness of the fixing connection portion (12261) is less than the width of the vertical limiting groove (122421), and the width / diameter of the limiting portion (12262) is greater than the width of the vertical limiting groove (122421), so that the fixing screw (1226) can pass through the vertical limiting groove (122421) and be locked into the fixing screw hole (122521). An air cylinder hole (1101) penetrating from the bottom to the top is provided in the connection substrate (11). The air cylinder (1211) is installed at the bottom of the connection substrate (11). The transmission air rod (12111) passes through the air cylinder hole (1101) and is in transmission connection with the movable pressing plate (1225). The photoelectric inductor (1213) is connected to the synchronous belt (141). The photoelectric sensing element (1212) is installed on the second vertical connecting portion (12252). The movable pressing plate (1225) moves up and down along the vertical limiting groove (122421) of the fixed pressing plate (1224) under the drive of the air cylinder (1211). When moving up, the top transverse lower pressing plate (12243) and the transverse upper pressing plate (12253) can form a crimping and fixing of the synchronous belt (141); when moving down, the transverse lower pressing plate (12251) and the connection substrate (11) can form a crimping and fixing of the positioning belt (13).

3. The longitudinal cutter positioning device according to claim 2, wherein A height adjusting block (111) is provided between the top of the connection substrate (11) and the transverse lower pressing plate (12251).

4. Longitudinal cutting equipment, characterized in that It includes the longitudinal knife positioning device (1) according to any one of claims 1 to 3.

5. The longitudinal cutting device according to claim 4, characterized in that, It includes a frame (2). A slide rail (21) parallel to the length direction of the synchronous belt (141) is provided at the bottom of the frame (2). A slide rail connecting seat (112) is provided on the connection substrate (11). The slide rail connecting seat (112) is slidably connected to the slide rail (21).

6. The longitudinal cutting device according to claim 5, characterized in that, The slide rail (21) is convexly provided. The two outer sides of the slide rail (21) have convex outer edges (211). The slide rail connecting seat (112) has a groove portion (1121) corresponding to and matching the slide rail (21). The two inner sides of the groove portion (1121) have recessed positions (11211), which are in shape fit with the convex outer edges (211) of the slide rail (21) to form an engagement.

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