A micro-adjustment machine for paper boxes

Abstract

This invention relates to the field of paper box processing technology, and more particularly to a micro-adjustment shaping machine for paper boxes. It includes a support frame, on which a belt conveyor with a conveyor belt is mounted. A mounting plate is connected to the support frame, and the mounting plate has two sliding frames that slide back and forth. Each sliding frame has an electric push rod connected to its bottom end, and each electric push rod has a shaping push block connected to its telescopic rod. The conveyor belt transports the paper boxes, and a stop block moves to block the paper boxes. A lifting plate and shaping push blocks descend, and shaping push blocks 1 and 2 perform micro-adjustment shaping on the four sides of the paper boxes. The shaping process can be integrated with other processes, resulting in a high degree of automation and efficiency. The lifting plate moves, causing the electric push rod 1 to move, and shaping push blocks 1 shape paper boxes of different widths. The lifting plate moves, causing the right-side electric push rod 3 to move, and shaping push blocks 2 shape paper boxes of different lengths. It automatically adapts to different specifications of paper boxes, has a wide range of applications, and is highly practical.

Description

Technical Field

[0001] This invention relates to the field of paper box processing technology, and in particular to a micro-adjustment machine for paper boxes. Background Technology

[0002] During the processing of cardboard boxes, in order to ensure that the shape of the folded cardboard box meets the standard, it is necessary to manually press the four sides of the cardboard box and make fine adjustments to the size of the cardboard box, thereby shaping the cardboard box.

[0003] Chinese patent publication number CN206856115U discloses a paper box shaping device, including a working platform and a controller. The working platform is respectively equipped with a front shaping component, a rear shaping component, a left shaping component, and a right shaping component.

[0004] The aforementioned patent uses shaping strips from the front, rear, left, and right shaping components to shape the paper box. However, it requires manual placement and removal of the paper box, cannot be connected with belt conveyors in other paper box processing steps, and is difficult to automatically adapt to different paper box specifications. The overall automation level and work efficiency of paper box processing need to be improved. Summary of the Invention

[0005] In view of this, the present invention provides a micro-adjustment machine for the size of paper boxes.

[0006] The technical implementation of this invention is as follows: A micro-adjustment and shaping machine for paper boxes includes a support frame, a belt conveyor with a conveyor belt mounted on the support frame, an mounting plate connected to the support frame, two sliding frames 1 that slide back and forth, each sliding frame 1 having an electric push rod 1 connected to its bottom end, and each electric push rod 1 having a shaping push block 1 connected to its telescopic rod. The mounting plate also includes a sliding frame 2 that slides left and right and a fixed frame that is fixed in position. Each sliding frame 2 and the fixed frame has an electric push rod 2 connected to its side, and each electric push rod 2 has a lifting plate connected to its telescopic rod. Each lifting plate has an electric push rod 3 connected to its bottom, and each electric push rod 3 has a shaping push block 2 connected to its telescopic rod. The sides of the two shaping push blocks 1 and the two shaping push blocks 2 that are close to each other are curved surfaces. The four sides of the paper box are shaped by the two shaping push blocks 1 and the two shaping push blocks 2.

[0007] Furthermore, the micro-adjustment machine for paper boxes also includes a fixed column. The fixed column is connected to the mounting plate. Lifting block one and lifting block two are slidably connected on the fixed column. Two lead screw motors are installed on the fixed column. The two lead screw motors drive lifting block one and lifting block two to move up and down respectively. Lifting block one and sliding frame one are rotatably connected by hinge rod one. Lifting block two and sliding frame two are rotatably connected by hinge rod two.

[0008] Furthermore, the micro-adjustment machine for paper boxes also includes a blocking mechanism, which includes a fixed plate. A fixed plate is connected to the mounting plate, and an electric push rod four is connected to the bottom of the fixed plate. A stop block is connected to the telescopic rod of the electric push rod four.

[0009] Furthermore, the micro-adjustment machine for paper boxes also includes a connecting plate. Two connecting plates are connected to the mounting plate, and a light emitter and a light receiver are respectively installed on the two connecting plates. A controller is set on the bracket, and the electric push rod and the light receiver are electrically connected to the controller.

[0010] Furthermore, the micro-adjustment shaping machine for paper boxes also includes a guiding mechanism. The guiding mechanism includes fixed rods, and two fixed rods are connected to the bracket. Each fixed rod is equipped with a pair of guide rods that slide back and forth. Each pair of guide rods is connected to a limit rod one. The right end of each limit rod one is equipped with a limit rod two that slides left and right. Two rotating shafts are rotatably connected to the right side of the bracket. The two rotating shafts are rotatably connected to the two limit rods two respectively, and inclined rotating rods are rotatably connected to them.

[0011] Furthermore, the guiding mechanism also includes connecting rods. Each sliding frame is connected to a connecting rod, and each connecting rod has a through hole at its bottom end. Each limiting rod is connected to a screw rod, with two screw rods passing through two through holes respectively. Each screw rod is threaded with a pair of nuts, and the nuts are in contact with the connecting rod on the same side.

[0012] Furthermore, the micro-adjustment machine for paper boxes also includes an ejection mechanism. The ejection mechanism includes a fixed base, two conveyor belts, which are spaced apart. A fixed base is connected to a support frame and is located at the interval between the two conveyor belts. An electric push rod is connected to the fixed base. A moving rod is connected to the telescopic rod of the electric push rod. A square rod is connected to the right end of the moving rod. A pushing column that slides up and down is provided on the square rod. An extrusion plate is connected to the fixed base. The extrusion plate has an inclined surface. When the pushing column moves to the right, it will contact the inclined surface.

[0013] Furthermore, the micro-adjustment and shaping machine for paper boxes also includes a straightening mechanism. The straightening mechanism includes a connecting block, a connecting block connected to a moving rod, and two fixed blocks connected to the right side of the bracket. Each fixed block is equipped with a sliding rod that slides back and forth. A hinge rod is rotatably connected between the sliding rod and the connecting block. A moving frame is connected to the end of each of the two sliding rods that is close to each other. A straightening block that slides back and forth is provided on the moving frame. A spring is connected between the straightening block and the moving frame. Damping is provided at the sliding connection between the straightening block and the moving frame.

[0014] The present invention has the following advantages: 1. The conveyor belt transports the paper boxes, the stop blocks move to block the paper boxes, the lifting plate and the second shaping pusher descend, the first shaping pusher and the second shaping pusher make micro-adjustments to the dimensions of the four sides of the paper boxes, the shaping process can be connected with other processes, and the degree of automation and work efficiency are high; the lifting block one moves up and down to move the electric pusher one, the first shaping pusher shapes paper boxes of different widths, the lifting block two moves up and down to move the right electric pusher three, the second shaping pusher shapes paper boxes of different lengths, automatically adapts to paper boxes of different specifications, has a wide range of applications and high practicality.

[0015] 2. The cardboard box is centered in the front-to-back direction by two rotating rods. The cardboard box enters between two limit rods two, and then enters between two limit rods one. The rotating rods, limit rods two, and limit rods one guide the cardboard box on the conveyor belt to prevent the cardboard box from shifting in the front-to-back direction.

[0016] 3. When the sliding frame moves to adapt to the width of the cardboard box, the positions of the rotating rod, the second limiting rod, and the first limiting rod can be automatically and synchronously adjusted, with high synchronization. By manually turning the nut, the relative positions of the first limiting rod and the connecting rod can be finely adjusted to prevent the first limiting rod from crushing the protruding decorations on the side of the cardboard box, thus making it more adaptable.

[0017] 4. When the width of the cardboard box is too large, the electric push rod five telescopic rod extends, the moving rod and the push column move to the right, the extrusion plate extrudes the push column by the inclined plane, and the push column pushes out the cardboard box that is stopped between the two rotating rods. It can automatically push out cardboard boxes that are too wide, and has a high degree of automation.

[0018] 5. When the electric push rod five telescopic rod is shortened, the next paper box is placed on the conveyor belt, the moving rod and connecting block move to the left, the two correcting blocks move closer to each other and push the front and rear sides of the paper box to straighten the paper box and prevent the paper box from being skewed. With the cooperation of spring and damping, the paper box is protected from damage, thus automatically correcting the direction of the paper box. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the mounting plate and its components according to the present invention.

[0021] Figure 3 This is a schematic diagram showing the connection relationship between the sliding frame, electric push rod, shaping push block, connecting plate, light emitter and light receiver of the present invention.

[0022] Figure 4 This is a schematic diagram of the structure of the sliding frame 2, fixed frame, lifting plate, shaping push block 2, fixed plate, electric push rod 4, stop block, connecting plate and light emitter of the present invention.

[0023] Figure 5This is a schematic diagram showing the positional distribution of the electric actuator 1, shaping push block 1, electric actuator 3, shaping push block 2, stop block, light emitter, and light receiver of the present invention.

[0024] Figure 6 This is a schematic diagram of the guiding mechanism of the present invention.

[0025] Figure 7 This is a schematic diagram of the structure of the fixed rod, guide rod, limiting rod one, limiting rod two, rotating rod and rotating shaft of the present invention.

[0026] Figure 8 This is a schematic diagram of the structure of the limiting rod, connecting rod, screw and nut of the present invention.

[0027] Figure 9 This is a schematic diagram of the launching mechanism and the corrective mechanism of the present invention.

[0028] Figure 10 This is a front view of the launching mechanism of the present invention.

[0029] Figure 11 This is a top view of the correction mechanism of the present invention.

[0030] The meanings of the reference numerals in the diagram are as follows: 1-Bracket, 2-Conveyor belt, 3-Mounting plate, 4-Sliding frame one, 41-Fixed column, 42-Lifting block one, 43-Hinge rod one, 5-Electric push rod one, 6-Shaping push block one, 7-Sliding frame two, 71-Lifting block two, 72-Hinge rod two, 8-Fixed frame, 9-Lifting plate, 91-Electric push rod two, 10-Electric push rod three, 11-Shaping push block two, 110-Carton box, 111-Fixed plate, 112-Electric push rod four, 113-Stop block, 114-Connecting plate, 115-Light emitter, 1 16-Light receiver, 121-Fixing rod, 122-Guide rod, 123-Limiting rod one, 124-Limiting rod two, 125-Rotating rod, 126-Rotating shaft, 127-Connecting rod, 128-Screw rod, 129-Nut, 131-Fixing seat, 132-Electric actuator five, 133-Moving rod, 134-Square rod, 135-Push column, 136-Extrusion plate, 137-Inclined surface, 141-Connecting block, 142-Fixing block, 143-Sliding rod, 144-Hinge rod three, 145-Moving frame, 146-Correcting block. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Example 1: A micro-adjustment machine for the dimensions of paper boxes, referenced Figures 1-5 The system includes a support frame 1, a conveyor belt 2, a mounting plate 3, a sliding frame 4, an electric push rod 5, a shaping push block 6, a sliding frame 7, a fixed frame 8, an electric push rod 91, a lifting plate 9, an electric push rod 3 10, and a shaping push block 11. A belt conveyor is mounted on the support frame 1, which has two spaced conveyor belts 2. The mounting plate 3 is fixedly connected to the top left side of the support frame 1. The mounting plate 3 has two sliding frames 4 that slide back and forth. An electric push rod 5 is bolted to the bottom of each sliding frame 4. A shaping push block 6 is connected to the telescopic rod of each electric push rod 5. The mounting plate 3 has a sliding frame 7 that slides left and right and a fixed frame 8. An electric push rod 91 is bolted to the sides of both the sliding frame 7 and the fixed frame 8. A lifting plate 9 is fixedly connected to the telescopic rod of each electric push rod 9. An electric push rod 3 10 is bolted to the bottom of each lifting plate 9. Each telescopic rod is fixedly connected to a shaping push block 21. The two shaping push blocks 16 and the two shaping push blocks 21 are curved on the side that is close to each other. The four sides of the paper box 110 are shaped by the two shaping push blocks 16 and the two shaping push blocks 211. The paper box size micro-adjustment shaping machine also includes a fixed column 41, a lifting block 1 42, a hinge rod 1 43, a lifting block 2 71 and a hinge rod 2 72. The fixed column 41 is welded to the top of the mounting plate 3. The lower and upper parts of the fixed column 41 are slidably connected to the lifting block 1 42 and the lifting block 2 71 respectively. Two screw motors are installed on the fixed column 41. The two screw motors drive the lifting block 1 42 and the lifting block 2 71 to move up and down respectively. The lifting block 1 42 is rotatably connected to the top of the sliding frame 1 4 by a hinge rod 1 43. The lifting block 2 71 is rotatably connected to the top of the sliding frame 2 7 by a hinge rod 2 72.

[0033] refer to Figures 2-5 The paper box micro-adjustment machine also includes a blocking mechanism, which includes a fixed plate 111, an electric push rod 112, and a stop block 113. The fixed plate 111 is bolted to the left side of the mounting plate 3, and the electric push rod 112 is bolted to the bottom of the fixed plate 111. The stop block 113 is fixedly connected to the telescopic rod of the electric push rod 112. The paper box micro-adjustment machine also includes a connecting plate 114, a light emitter 115, and a light receiver 116. The connecting plate 114 is fixedly connected to both the front and rear of the mounting plate 3. The light emitter 115 and the light receiver 116 are respectively installed on the two connecting plates 114. A controller is provided on the left side of the bracket 1. The controller is existing technology. The electric push rod 112 and the light receiver 116 are electrically connected to the controller.

[0034] Initially, the light receiver 116 receives the signal emitted by the light emitter 115. It can connect to the belt conveyor of other processing steps via the conveyor belt 2. When the paper box 110 enters from the right end of the conveyor belt 2, the initial position of the shaping push block 2 11 is higher than the paper box 110. The shaping push block 2 11 will not block the moving paper box 110. Control the belt conveyor, and the conveyor belt 2 will transport the paper box 110 to the left. When the paper box 110 moves between the light receiver 116 and the light emitter 115, the light receiver 116 no longer receives the signal emitted by the light emitter 115. With the cooperation of the light receiver 116 and the controller, the controller controls the electric push rod 4 112 to drive the stop block 113 to move forward. The stop block 113 blocks the left rear of the paper box 110 and is located behind the shaping push block 2 11, so as not to affect the subsequent movement of the shaping push block 2 11, so that the paper box 110 stops between the two shaping push blocks 1 6.

[0035] The control electric push rod 2 91 drives the lifting plate 9 to descend, which in turn drives the electric push rod 3 10 and the shaping push block 2 11 to descend, so that the two shaping push blocks 2 11 are located on the left and right sides of the paper box 110. At this time, the control electric push rod 1 5 and the extension rod of electric push rod 3 10 extend, so that the shaping push block 1 6 and the shaping push block 2 11 move towards the side of the paper box 110. The four sides of the paper box 110 are shaped by the two shaping push blocks 1 6 and the two shaping push blocks 2 11, thereby fine-tuning the size of the paper box 110.

[0036] Then, the telescopic rods of electric push rod 1 (5) and electric push rod 3 (10) are retracted, and electric push rod 2 (91) drives the lifting plate 9 to rise and reset, which in turn drives electric push rod 3 (10) and shaping push block 2 (11) to rise and reset, so that the positions of the two shaping push blocks 2 (111) are higher than the paper box 110. The controller controls electric push rod 4 (112) to drive the stop block 113 to move backward and reset, so that the stop block 113 no longer blocks the paper box 110. The conveyor belt 2 continues to transport the paper box 110 to the left. Similarly, the next paper box 110 is automatically adjusted and shaped. In this way, the paper box 110 shaping process can be connected with other processes, with a high degree of automation and high work efficiency.

[0037] When different sizes of cardboard boxes 110 need to be shaped, the lower screw motor drives the lifting block 42 to descend. Under the transmission action of the hinge rod 43, the two sliding frames 4 move away from each other in the front-back direction. The electric push rod 5 and the shaping push block 6 move synchronously with the sliding frames 4, increasing the distance between the two electric push rods 5. Similarly, the lower screw motor drives the lifting block 42 to rise, causing the two sliding frames 4 to move closer to each other in the front-back direction, decreasing the distance between the two electric push rods 5. This allows the distance between the two electric push rods 5 to adapt to the distance between the front and rear sides of the cardboard box 110, enabling the two shaping push blocks 6 to shape cardboard boxes 110 of different widths. By controlling the upper screw motor to drive the lifting block 42 to rise... As the lowering block 71 descends, the sliding frame 7 slides to the right under the transmission action of the hinge rod 72. The electric push rod 91, the lifting plate 9, the electric push rod 10, and the shaping push block 11 on the right move synchronously with the sliding frame 7, increasing the distance between the two electric push rods 10. Similarly, by controlling the upper screw motor to drive the lifting block 71 to rise, the sliding frame 7 slides to the left, decreasing the distance between the two electric push rods 10. This allows the distance between the two electric push rods 10 to adapt to the distance between the left and right sides of the cardboard box 110. The two shaping push blocks 111 can then shape cardboard boxes 110 of different lengths. In this way, it can automatically adapt to cardboard boxes 110 of different specifications, with a wide range of applications and high practicality.

[0038] Example 2: Based on Example 1, refer to Figure 1 , Figure 6 , Figure 7 and Figure 8 The paper box micro-adjustment shaping machine also includes a guiding mechanism, which includes a fixed rod 121, a guide rod 122, a first limiting rod 123, a second limiting rod 124, a rotating rod 125, and a rotating shaft 126. Fixed rods 121 are welded to the front and rear sides of the top of the support 1. Each fixed rod 121 has a pair of guide rods 122 that slide back and forth. A first limiting rod 123 is fixedly connected between each pair of guide rods 122. A second limiting rod 124 that slides left and right is provided at the right end of each first limiting rod 123. A rotating shaft 126 is symmetrically connected to the right side of the support 1, rotating 126 in a rotatable manner. The two rotating shafts 126 are respectively connected to the two second limiting rods 125. 4. An inclined rotating rod 125 is rotatably connected between the right ends. The two rotating rods 125 are used to center the paper box 110 in the front-back direction. The guide mechanism also includes a connecting rod 127, a screw 128 and a nut 129. The top of the sliding frame 4 is fixedly connected to the connecting rod 127. The bottom end of the connecting rod 127 is opened with a through hole. The left end of the limiting rod 123 is connected to the screw 128. The two screws 128 pass through the two through holes respectively. A pair of nuts 129 are threaded on the screw 128. The nuts 129 are in contact with the connecting rod 127 on the same side, so that the lower end of the connecting rod 127 is clamped by the pair of nuts 129.

[0039] The distance between the two rotating rods 125 in the front-back direction gradually decreases from right to left. When the paper box 110 is placed at the right end of the conveyor belt 2, the two rotating rods 125 center the paper box 110 in the front-back direction, so that the paper box 110 enters between the two limiting rods 124. Then the paper box 110 enters between the two limiting rods 123. Thus, the rotating rods 125, the limiting rods 124 and 123 guide the paper box 110 on the conveyor belt 2, so that the paper box 110 is smoothly transported between the two shaping push blocks 6, and the paper box 110 is prevented from shifting in the front-back direction.

[0040] When the two sliding frames 123 move away from each other in the front-back direction, the sliding frames 123 drive the connecting rod 127, nut 129, screw 128, limit rod 123, guide rod 122, and limit rod 124 to move synchronously as a whole. The distance between the two limit rods 123 and the two limit rods 124 in the front-back direction increases. The limit rod 124 will slide to the left relative to the limit rod 123. The front rotating rod 125 rotates counterclockwise with the front rotating shaft 126 as the axis, and the rear rotating rod 125 rotates clockwise with the rear rotating shaft 126 as the axis. At this time, the rotating rod 125, the limit rod 124, and the limit rod 123 can accommodate wider paper. The box 110 is guided; similarly, when the two sliding frames 4 approach each other in the front-back direction, the distance between the two limiting rods 123 in the front-back direction decreases, the distance between the two limiting rods 124 in the front-back direction decreases, the limiting rod 124 slides to the right relative to the limiting rod 123, the front rotating rod 125 rotates clockwise with the front rotating shaft 126 as the axis, and the rear rotating rod 125 rotates counterclockwise with the rear rotating shaft 126 as the axis, so as to guide the paper box 110 with a smaller width. In this way, when the sliding frame 4 moves to adapt to the width of the paper box 110, the positions of the rotating rod 125, the limiting rod 124 and the limiting rod 123 can be automatically and synchronously adjusted, with high synchronization.

[0041] If there are protruding decorative elements on the front and rear sides of the cardboard box 110, the second nut 129 from the front can be manually rotated to move it backward relative to the front screw 128. Then, the first nut 129 can be rotated to move it backward relative to the front screw 128 as well. The pair of nuts 129 on the front side continue to clamp the lower part of the front connecting rod 127, causing the front screw 128 to move forward relative to the front connecting rod 127. The front screw 128 drives the front limiting rod 123 and the front limiting rod 24 to move synchronously. Similarly, by rotating the pair of nuts 129 on the rear side, the relative positions of the rear limiting rod 123 and the rear connecting rod 127 can be finely adjusted to prevent the limiting rod 123 from crushing the protruding decorative elements on the side of the cardboard box 110, thus increasing its adaptability.

[0042] Example 3: Based on Example 2, refer to Figure 1 , Figure 9 and Figure 10 The paper box micro-adjustment shaping machine also includes an ejection mechanism, which includes a fixed base 131, an electric push rod 132, a moving rod 133, a square rod 134, a push column 135, and a pressing plate 136. The fixed base 131 is fixedly connected to the bracket 1. The fixed base 131 is located at the interval between the two conveyor belts 2. The electric push rod 132 is bolted to the top left side of the fixed base 131. The moving rod 133 is fixedly connected to the telescopic rod of the electric push rod 132. The square rod 134 is fixedly connected to the right end of the moving rod 133. The square rod 134 is provided with a push column 135 that slides up and down. The pressing plate 136 is fixedly connected to the top right side of the fixed base 131. The left end of the pressing plate 136 has an inclined surface 137. When the push column 135 moves to the right, it will contact the inclined surface 137, thereby causing the push column 135 to rise through the inclined surface 137.

[0043] The extension and retraction of the telescopic rod of the electric push rod 132 is controlled according to the time interval of the placement of the cardboard box 110. The timing control technology is existing technology. The initial position of the push column 135 is lower than the top surface of the conveyor belt 2. When the width of the cardboard box 110 is too large, the cardboard box 110 will stop between the two rotating rods 125. At this time, the telescopic rod of the electric push rod 132 is extended, causing the moving rod 133, the square rod 134 and the push column 135 to move to the right. The squeezing plate 136 squeezes the push column 135 upward through the inclined plane 137. The push column 135 rises to a position higher than the top surface of the conveyor belt 2, and the push column 135 will stop between the two rotating rods 125. Paper box 110 is pushed out between rods 125. Then the telescopic rod of electric push rod 5 132 shortens. Moving rod 133, square rod 134 and push column 135 move to the left to reset. Push column 135 is reset by gravity. At the same time as the telescopic rod of electric push rod 5 132 shortens, the next paper box 110 is placed on conveyor belt 2. If the width of paper box 110 is not too large, paper box 110 is smoothly conveyed to the left. If the width of paper box 110 is too large, the telescopic rod of electric push rod 5 132 extends again, and push column 135 pushes out the paper box 110 that is too wide. In this way, paper boxes 110 that are too wide can be automatically pushed out, with a high degree of automation.

[0044] Example 4: Based on Example 3, refer to Figure 1 , Figure 9 and Figure 11The paper box micro-adjustment shaping machine also includes a straightening mechanism, which includes a connecting block 141, a fixing block 142, a slide rod 143, a hinge rod 144, a moving frame 145, and a straightening block 146. The left side of the moving rod 133 is welded with the connecting block 141, and the right side of the bracket 1 is symmetrically fixed with the fixing blocks 142. Each fixing block 142 is provided with a slide rod 143 that slides back and forth. The slide rod 143 and the connecting block 141 are rotatably connected with the hinge rod 144. The two slide rods 143 are fixedly connected to the moving frame 145 at their close ends. Each moving frame 145 is provided with a straightening block 146 that slides back and forth. A spring is fixedly connected between the straightening block 146 and the moving frame 145. The sliding connection between the straightening block 146 and the moving frame 145 is provided with damping.

[0045] When the telescopic rod of electric actuator 132 extends, the moving rod 133 and the connecting block 141 move to the right. Under the transmission action of the hinge rod 144, the two sliding rods 143 move away from each other in the front-back direction, causing the two moving frames 145 to move away from each other and the two straightening blocks 146 to move away from each other. When the telescopic rod of electric actuator 132 shortens, the next paper box 110 is placed on the conveyor belt 2. Similarly, the moving rod 133 and the connecting block 141 move to the left, and the two sliding rods 143 move closer to each other in the front-back direction, causing the two moving frames 145 to move closer to each other and the two straightening blocks 146 to move closer to each other and push the front and rear sides of the paper box 110, so that the paper box 110 is aligned and the paper box 110 is not skewed. With the cooperation of spring and damping, the paper box 110 is not damaged, thus preventing the paper box 110 with normal width from getting stuck between the two rotating rods 125, thereby automatically correcting the direction of the paper box 110.

[0046] Although the invention has been described with reference to exemplary embodiments, it should be understood that the invention is not limited to the disclosed exemplary embodiments.

Claims

1. A size adjustment machine for paper boxes, comprising a support (1) on which a belt conveyor with a conveyor belt (2) is mounted, characterized in that, The support (1) is connected with a mounting plate (3), the mounting plate (3) is provided with two front and rear sliding slide frames (4), the bottom end of the slide frame (4) is connected with an electric push rod (5), the telescopic rod of the electric push rod (5) is connected with a shaping push block (6), the mounting plate (3) is provided with a left and right sliding slide frame (7) and a fixed frame (8), the slide frame (7) and the fixed frame (8) are connected with an electric push rod (91), the telescopic rod of the electric push rod (91) is connected with a lifting plate (9), the bottom of the lifting plate (9) is connected with an electric push rod (10), the telescopic rod of the electric push rod (10) is connected with a shaping push block (11), the side of the two shaping push blocks (6) and the two shaping push blocks (11) close to each other is an arc surface, and the four side surfaces of the paper box (110) are shaped by the two shaping push blocks (6) and the two shaping push blocks (11). The size micro-adjusting and shaping machine for paper boxes further comprises a fixing column (41), the mounting plate (3) is connected with the fixing column (41), the fixing column (41) is slidably connected with a lifting block (42) and a lifting block (71), two lead screw motors are installed on the fixing column (41), and the two lead screw motors drive the lifting block (42) and the lifting block (71) to move up and down, respectively, the lifting block (42) and the slide frame (4) are rotatably connected with a hinged rod (43), and the lifting block (71) and the slide frame (7) are rotatably connected with a hinged rod (72). The size micro-adjusting and shaping machine for paper boxes further comprises a blocking mechanism, the blocking mechanism comprises a fixed plate (111), the mounting plate (3) is connected with the fixed plate (111), the bottom end of the fixed plate (111) is connected with an electric push rod (112), and the telescopic rod of the electric push rod (112) is connected with a blocking block (113).

2. The size adjustment machine for a paper box according to claim 1, wherein The size micro-adjusting and shaping machine for paper boxes further comprises a connecting plate (114), the mounting plate (3) is connected with two connecting plates (114), a light emitter (115) and a light receiver (116) are installed on the two connecting plates (114) respectively, a controller is arranged on the support (1), and the electric push rod (112) and the light receiver (116) are electrically connected with the controller.

3. The size adjustment machine for a paper box according to claim 2, wherein The size micro-adjusting and shaping machine for paper boxes further comprises a guide mechanism, the guide mechanism comprises a fixed rod (121), two fixed rods (121) are connected to the support (1), each fixed rod (121) is provided with a pair of front and rear sliding guide rods (122), a limiting rod (123) is connected between each pair of guide rods (122), the right end of the limiting rod (123) is provided with a left and right sliding limiting rod (124), the right part of the support (1) is rotatably connected with two rotating shafts (126), and the rotating shafts (126) are rotatably connected with the limiting rods (124) through rotating rods (125) arranged obliquely.

4. The size adjustment machine for paper boxes according to claim 3, wherein The guide mechanism further includes connecting rods (127), the sliding frame (4) is connected with the connecting rod (127), the bottom end of the connecting rod (127) is provided with a through hole, the limiting rod (123) is connected with a screw rod (128), the two screw rods (128) pass through the two through holes respectively, the screw rod (128) is connected with a pair of nuts (129), and the nut (129) is in contact with the connecting rod (127) on the same side.

5. The size adjustment machine for paper boxes according to claim 4, wherein The size adjustment machine for paper boxes further includes a pushing mechanism, the pushing mechanism includes a fixed seat (131), the conveying belt (2) has two, the two conveying belts (2) are arranged at intervals, the fixed seat (131) is connected to the support (1), the fixed seat (131) is located at the interval between the two conveying belts (2), the fixed seat (131) is connected with the fifth electric push rod (132), the movable rod (133) is connected to the telescopic rod of the fifth electric push rod (132), the square rod (134) is connected to the right end of the movable rod (133), the square rod (134) is provided with a pushing column (135) sliding up and down, the fixed seat (131) is connected with the extrusion plate (136), the extrusion plate (136) has an inclined surface (137), and the pushing column (135) moves to the right and is in contact with the inclined surface (137).

6. The size adjustment machine for a paper box according to claim 5, wherein The size adjustment machine for paper boxes further includes a correction mechanism, the correction mechanism includes a connecting block (141), the connecting block (141) is connected to the movable rod (133), the right part of the support (1) is connected with two fixed blocks (142), the fixed block (142) is provided with a sliding rod (143) sliding forward and backward, the hinged rod three (144) is rotatably connected between the sliding rod (143) and the connecting block (141), the end of the two sliding rods (143) close to each other is connected with a moving frame (145), the moving frame (145) is provided with a correction block (146) sliding forward and backward, the correction block (146) and the moving frame (145) are connected with springs, and the sliding connection portions of the correction block (146) and the moving frame (145) are provided with dampers.

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