A carton pre-folding mechanism

Abstract

The application relates to a carton pre-folding mechanism which comprises a front end stop and a rear end stop, a telescopic adjusting mechanism is arranged between the front end stop and the rear end stop, a line rolling mechanism and a stable conveying mechanism are further arranged in the front end stop, a turnover folding mechanism is arranged in the rear end stop, the telescopic adjusting mechanism is used for changing the spacing between the front end stop and the rear end stop, proper adjustment can be conveniently made according to the length of the carton, the line rolling mechanism is used for rolling a crease on the carton, and the line rolling mechanism comprises a crease rolling roller and a driving motor used for driving the roller to rotate. The line rolling mechanism is added to the original folding mechanism, so that the carton is secondarily pressed after being pressed on the creasing equipment before being folded, the carton is pressed twice, the stress on the surface of the paperboard can be ensured to be moderate and gradual, and the carton can be effectively prevented from being torn when being pressed, and the pressing effect is improved.

Description

Technical Field

[0001] This application relates to the field of paper box processing, and in particular to a paper box pre-folding mechanism. Background Technology

[0002] Cardboard boxes are a common type of packaging material for products. When folding cardboard boxes, creases need to be pre-pressed onto the boxes so that they can be easily folded along the creases later.

[0003] Currently, when creasing cardboard boxes, it is mostly done in a single cutting process. First, the cardboard is creasing with a creasing device before it is transferred to a folding mechanism for folding. This single cutting process causes the cardboard surface to be subjected to rapid stress and high impact, making it prone to tearing and damage. If the cardboard is creasing and folded on the creasing device, and then folded a second time before folding, the stress on the surface of the cardboard forming the box can be gradually increased, thus effectively preventing the box from tearing during creasing and improving the creasing effect.

[0004] Therefore, a pre-folding mechanism for paper boxes is proposed to address the above problems. Summary of the Invention

[0005] To address the problems mentioned in the background art, this application provides a paper box pre-folding mechanism.

[0006] This application provides a pre-folding mechanism for paper boxes, including a front stop and a rear stop, wherein a telescopic adjustment mechanism is provided between the front stop and the rear stop, a crimping mechanism and a stabilizing conveying mechanism are also provided inside the front stop, and a flipping folding mechanism is provided inside the rear stop.

[0007] The telescopic adjustment mechanism is used to change the distance between the front and rear guards, so as to make appropriate adjustments according to the length of the cardboard box. The telescopic adjustment mechanism includes two telescopic motors installed on the front guard, and the output shaft of the telescopic motor is fixedly installed on the top of the rear guard.

[0008] A creasing mechanism is used to roll creases on a cardboard box. The creasing mechanism includes a rolling wheel for rolling creases and a drive motor for driving the rolling wheel to rotate.

[0009] The flip-folding mechanism is used to push the two sides of the cardboard box to flip and fold upward along the crease. The flip-folding mechanism includes a shovel plate that is inclinedly set inside the rear end stop, and the bottom end of the shovel plate is rotatably connected to the rear end stop via a stabilizing shaft.

[0010] Preferably, the telescopic adjustment mechanism further includes a support slide bar that stably supports the rear end stop. The fixed end of the support slide bar is installed on the front end stop, and a fixed sleeve is provided on the top of the rear end stop. The free end of the support slide bar is slidably sleeved in the fixed sleeve, and an electromagnet assembly for easy adsorption and fixation of the support slide bar is installed on the top of the fixed sleeve.

[0011] Preferably, the rolling mechanism further includes a guide frame, which is installed on the top inner wall of the front end stop, and a special-shaped screw is rotatably installed inside the guide frame. The threads at both ends of the special-shaped screw are symmetrically arranged about the center point, and the two rolling wheels are threadedly fitted onto the special-shaped screw about the center point.

[0012] Preferably, an adjusting motor is also installed at one end of the guide frame. The output shaft of the adjusting motor is fixedly connected to one end of the shaped screw. Two internal thread mounting brackets are threadedly fitted on the shaped screw, and the rolling wheel is installed at the bottom of the rolling wheel.

[0013] Preferably, the stable conveying mechanism includes a stable triangular frame installed inside the front end baffle. Conveying wheels are rotatably mounted at the triangular inflection points of the stable triangular frame, and a conveying motor that drives the conveying wheels to rotate is also mounted on the uppermost conveying wheel.

[0014] Preferably, pulleys are installed on the central shafts on the same side of the three conveying wheels, and belts are synchronously connected to the three pulleys. Elastic support seats are also installed on the two upwardly extending ends of the stabilizing triangle, and the elastic support seats are fixedly connected to the top inner wall of the front end bracket.

[0015] Preferably, the flipping and folding mechanism further includes an adjusting roller disposed in the rear end bracket, wherein a diagonal brace is hinged between the middle of the adjusting roller and the shovel plate, and both ends of the adjusting roller are equipped with support slide bars, which are slidably installed in the rear end bracket.

[0016] Preferably, a rolling gear is also installed inside the rear end stop in conjunction with damping. The rolling gear meshes with the top of the support slide bar, and a knob is installed on the outer end of the rolling gear shaft that passes through the rear end stop.

[0017] In summary, this application includes the following beneficial technical effects:

[0018] 1. The present invention provides a pre-folding mechanism for a cardboard box, wherein a telescopic adjustment mechanism is provided between the front end baffle and the rear end baffle. By means of a telescopic motor, the rear end baffle can be pushed to slide, which facilitates the adjustment of the distance between the rear end baffle and the front end baffle. It can be appropriately adjusted according to the length of the cardboard box, making it more practical.

[0019] 2. The present invention provides a paper box pre-folding mechanism, wherein a special-shaped screw and an internal thread mounting bracket are also provided in the rolling mechanism. Since the threads at both ends of the special-shaped screw are symmetrically arranged about the center point, the two internal thread mounting brackets can be pushed to move closer or further apart when the special-shaped screw rotates, making adjustment more convenient.

[0020] 3. The present invention provides a pre-folding mechanism for a paper box, wherein a stable conveying mechanism is also provided in the front end bracket. With the cooperation of the stable triangular bracket, the conveying wheel can be easily installed, and the elastic support seat can push the conveying wheel to press against the paper box. When the conveying wheel rotates, it can push the paper box to slide forward, which is convenient for processing.

[0021] 4. The present invention provides a paper box pre-folding mechanism, wherein an adjustable shovel plate is provided in the rear end baffle. By cooperating with the adjusting roller and the inclined support rod, the shovel plate can be easily pushed to flip, thereby adjusting the tilt angle of the shovel plate. The shovel plate can be adjusted to a suitable angle position for flipping the paper box according to the condition of the paper box.

[0022] 5. This invention adds a creasing mechanism to the original folding mechanism, so that after the cardboard box is creasing on the creasing device, it is creasing a second time before the cardboard box is folded. By creasing twice, the stress on the surface of the cardboard can be gradually increased, thereby effectively preventing the cardboard box from tearing during creasing and improving the creasing effect. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this application;

[0024] Figure 2 This is a schematic diagram of the internal structure of the front-end baffle of this application;

[0025] Figure 3 This is a breakdown diagram of the rolling mill mechanism of this application;

[0026] Figure 4 This is a schematic diagram of the stable conveying mechanism of this application;

[0027] Figure 5 This is a schematic diagram of the flipping and folding mechanism of this application.

[0028] Explanation of reference numerals in the attached drawings: 1. Front end stop; 111. Support slide bar; 112. Fixing sleeve; 113. Telescopic motor; 121. Guide frame; 122. Special-shaped screw; 123. Adjusting motor; 124. Internal thread mounting bracket; 125. Roller; 126. Drive motor; 131. Stabilizing triangular frame; 132. Conveyor wheel; 133. Conveyor motor; 134. Pulley; 135. Belt; 136. Elastic support seat; 2. Rear end stop; 211. Shovel plate; 212. Stabilizing shaft; 213. Adjusting roller; 214. Diagonal brace; 215. Support slide bar; 216. Rolling gear; 217. Knob. Detailed Implementation

[0029] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0030] Example 1

[0031] Reference Figures 1-5 As shown, this application discloses a pre-folding mechanism for a cardboard box, including a front stop 1 and a rear stop 2. A telescopic adjustment mechanism is provided between the front stop 1 and the rear stop 2. A crimping mechanism and a stabilizing conveying mechanism are also provided inside the front stop 1, and a flipping folding mechanism is provided inside the rear stop 2.

[0032] The telescopic adjustment mechanism is used to change the distance between the front end baffle 1 and the rear end baffle 2, so as to make appropriate adjustments according to the length of the cardboard box. The telescopic adjustment mechanism includes two telescopic motors 113 installed on the front end baffle 1. The output shaft of the telescopic motor 113 is fixedly installed on the top of the rear end baffle 2. The telescopic adjustment mechanism also includes a support slide bar 111 that stably supports the rear end baffle 2. The fixed end of the support slide bar 111 is installed on the front end baffle 1, and a fixed sleeve 112 is provided on the top of the rear end baffle 2. The free end of the support slide bar 111 is slidably sleeved in the fixed sleeve 112, and an electromagnet assembly that is convenient for adsorbing and fixing the support slide bar 111 is installed on the top of the fixed sleeve 112.

[0033] To facilitate adjusting the distance between the front stop 1 and the rear stop 2 according to the length of the cardboard box, a telescopic adjustment mechanism is provided between the front stop 1 and the rear stop 2. When the telescopic motor 113 is started, it can push the rear stop 2 to slide, and make the support slide 111 slide in the fixed sleeve 112, thereby changing the distance between the front stop 1 and the rear stop 2. After adjusting to a suitable position, the electromagnet assembly is turned on, which can attract and fix the support slide 111, thereby fixing the position of the rear stop 2. The adjustment is relatively convenient.

[0034] The creasing mechanism is used to roll creases on the cardboard box. The creasing mechanism includes a rolling roller 125 for rolling creases and a drive motor 126 for driving the rolling roller 125 to rotate. The creasing mechanism also includes a guide frame 121, which is installed on the top inner wall of the front end stop 1. A special-shaped screw 122 is rotatably installed inside the guide frame 121. The threads at both ends of the special-shaped screw 122 are symmetrically arranged about the center point. Two rolling rollers 125 are threadedly fitted onto the special-shaped screw 122 about the center point. An adjusting motor 123 is also installed at one end of the guide frame 121. The output shaft of the adjusting motor 123 is fixedly connected to one end of the special-shaped screw 122. Two internal thread mounting brackets 124 are threadedly fitted onto the special-shaped screw 122. The rolling roller 125 is installed at the bottom of the rolling roller 125.

[0035] To create creases on the cardboard box, the drive motor 126 slowly rotates, pushing the rollers 125 to rotate. As the cardboard box slides forward, creases are created by the rollers 125, facilitating subsequent folding. The distance between the two rollers 125 can be adjusted according to the width of the cardboard box to control the size of the folded box. When the adjusting motor 123 starts, the shaped screw 122 can be rotated. Since the threads at both ends of the shaped screw 122 are symmetrically arranged about the center point, the rotation of the shaped screw 122 can simultaneously push the two internal thread mounting brackets 124 closer or further apart, thus simultaneously adjusting the position of the two rollers 125, making adjustment relatively convenient.

[0036] The flipping and folding mechanism is used to push the two sides of the cardboard box to flip and fold upward along the crease. The flipping and folding mechanism includes a shovel plate 211 that is inclinedly set inside the rear end baffle 2. The bottom end of the shovel plate 211 is rotatably connected to the rear end baffle 2 through a stabilizing shaft 212. The flipping and folding mechanism also includes an adjusting roller 213 set inside the rear end baffle 2. A diagonal support rod 214 is hinged between the middle of the adjusting roller 213 and the shovel plate 211. Both ends of the adjusting roller 213 are equipped with support slides 215. The support slides 215 are slidably installed inside the rear end baffle 2. A rolling gear 216 is also installed inside the rear end baffle 2 with damping. The rolling gear 216 meshes with the top of the support slides 215. A knob 217 is also installed on the outer end of the shaft of the rolling gear 216 that passes through the rear end baffle 2.

[0037] Furthermore, after the cardboard box is creased and enters the rear baffle 2, both sides of the cardboard box will come into contact with the shovel plate 211. Due to the flip setting of the shovel plate 211, it can push both sides of the cardboard box to flip upward, deepen the crease, and facilitate the subsequent folding process.

[0038] Reference Figure 1 , Figure 4As shown, the stable conveying mechanism includes a stable triangular frame 131 installed inside the front end baffle 1. Conveyor wheels 132 are rotatably mounted at the triangular inflection points of the stable triangular frame 131. A conveyor motor 133 is also installed on the uppermost conveyor wheel 132 to drive the conveyor wheel 132 to rotate. Pulleys 134 are installed on the central shaft on the same side of the three conveyor wheels 132, and belts 135 are synchronously connected to the three pulleys 134. Elastic support seats 136 are also installed on the two upwardly extending ends of the stable triangular frame 131. The elastic support seats 136 are fixedly connected to the top inner wall of the front end baffle 1.

[0039] Furthermore, to prevent the roller 125 from contacting the cardboard box too tightly, which would make it difficult for the cardboard box to slide, a stabilizing triangular frame 131 is also provided in the front end bracket 1. With the cooperation of the stabilizing triangular frame 131, the conveyor roller 132 can be easily installed, and the elastic support seat 136 can push the conveyor roller 132 to press against the cardboard box. When the conveyor roller 132 rotates, it can push the cardboard box to slide forward, which is convenient for processing.

[0040] The implementation principle of the paper box pre-folding mechanism of this application is as follows:

[0041] In use, the cardboard box is conveyed by a conveyor belt, passing sequentially through the front stop 1 and the rear stop 2. The front stop 1 contains a roller 125 and a conveyor roller 132. When the drive motor 126 starts, it drives the roller 125 to rotate. Through contact between the roller 125 and the cardboard box, creases are formed, facilitating folding along these creases. Furthermore, to prevent excessive contact between the roller 125 and the cardboard box, which could hinder sliding, a stabilizing tripod 131 is also installed within the front stop 1. The combination of the two can facilitate the installation of the conveyor wheel 132. In addition, a conveyor motor 133 is also installed on the stable triangular frame 131. When the conveyor motor 133 drives the upper conveyor wheel 132 to rotate, it can also rotate the upper pulley 134. With the cooperation of the belt 135, the three pulleys 134 can rotate synchronously, which will push the two lower conveyor wheels 132 to rotate. Through the elastic support seat 136, the conveyor wheel 132 can be pushed to press against the paper box, which facilitates pushing the paper box into the rear end baffle 2.

[0042] After the cardboard box enters the rear baffle 2, the two sides of the cardboard box will come into contact with the shovel plate 211. Due to the flip setting of the shovel plate 211, the two sides of the cardboard box can be pushed to flip upward, deepening the crease and facilitating the subsequent folding process.

[0043] Furthermore, a telescopic adjustment mechanism is provided between the front end baffle 1 and the rear end baffle 2. When the telescopic motor 113 is started, it can push the rear end baffle 2 to slide, and make the support slide bar 111 slide in the fixed sleeve 112, thereby changing the distance between the front end baffle 1 and the rear end baffle 2. It can be adjusted appropriately according to the length of the cardboard box. After adjusting to the appropriate position, the electromagnet assembly is turned on, which can attract and fix the support slide bar 111, thereby fixing the position of the rear end baffle 2. The adjustment is relatively convenient.

[0044] In addition, before the crease-pressing process, the distance between the two rollers 125 can be adjusted according to the width of the carton to control the size of the folded carton. When the adjusting motor 123 is started, the special-shaped screw 122 can be rotated. Since the threads at both ends of the special-shaped screw 122 are symmetrically arranged about the center point, the two internal thread mounting brackets 124 can be pushed closer or further away from each other when the special-shaped screw 122 rotates, and the positions of the two rollers 125 can be adjusted synchronously, which is relatively convenient.

[0045] Finally, an adjustable shovel plate 211 is also provided in the rear end bracket 2. By cooperating with the adjusting roller 213 and the diagonal support rod 214, the shovel plate 211 can be easily pushed to flip, thereby adjusting the tilt angle of the shovel plate 211. Depending on the situation of the cardboard box, the shovel plate 211 can be adjusted to a suitable angle position for flipping the cardboard box, which is more practical.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pre-folding mechanism for a cardboard box, comprising a front stop (1) and a rear stop (2), wherein a telescopic adjustment mechanism is provided between the front stop (1) and the rear stop (2), a crimping mechanism and a stabilizing conveying mechanism are further provided inside the front stop (1), and a flipping folding mechanism is provided inside the rear stop (2), characterized in that: The telescopic adjustment mechanism is used to change the distance between the front end baffle (1) and the rear end baffle (2) so that it can be adjusted appropriately according to the length of the carton. The telescopic adjustment mechanism includes two telescopic motors (113) installed on the front end baffle (1). The output shaft of the telescopic motor (113) is fixedly installed on the top of the rear end baffle (2). The creasing mechanism is used to roll creases on the cardboard box. The creasing mechanism includes a rolling wheel (125) for rolling creases and a drive motor (126) for driving the rolling wheel (125) to rotate. The rolling mechanism also includes a guide frame (121), which is installed on the top inner wall of the front end stop (1), and a special-shaped screw (122) is rotatably installed inside the guide frame (121). The threads at both ends of the special-shaped screw (122) are symmetrically arranged about the center point, and two rolling wheels (125) are threadedly fitted about the center point and installed on the special-shaped screw (122). An adjusting motor (123) is also installed at one end of the guide frame (121). The output shaft of the adjusting motor (123) is fixedly connected to one end of the special-shaped screw (122). Two internal thread mounting brackets (124) are threadedly fitted on the special-shaped screw (122). The rolling wheel (125) is installed at the bottom of the internal thread mounting bracket (124). The stable conveying mechanism includes a stable triangular frame (131) installed inside the front end baffle (1). Conveying wheels (132) are rotatably installed at the triangular inflection points of the stable triangular frame (131), and a conveying motor (133) that drives the conveying wheel (132) to rotate is also installed on the uppermost conveying wheel (132). Each of the three conveyor wheels (132) is equipped with a pulley (134) on the central shaft on the same side, and a belt (135) is synchronously connected to the three pulleys (134). An elastic support seat (136) is also installed on the two upwardly extending ends of the stabilizing triangular frame (131). The elastic support seat (136) is fixedly connected to the top inner wall of the front end baffle (1). The flipping and folding mechanism is used to push the two sides of the cardboard box to flip and fold upward along the crease. The flipping and folding mechanism includes a shovel plate (211) that is inclinedly set inside the rear end baffle (2), and the bottom end of the shovel plate (211) is rotatably connected to the rear end baffle (2) through a stabilizing shaft (212). The flipping and folding mechanism also includes an adjusting roller (213) set in the rear end baffle (2). The middle part of the adjusting roller (213) is hinged to the shovel plate (211) with a diagonal brace (214). Both ends of the adjusting roller (213) are equipped with a support rack (215), which is slidably installed in the rear end baffle (2). A rolling gear (216) is also installed in the rear end bracket (2) with damping. The rolling gear (216) meshes with the top of the support rack (215), and a knob (217) is installed on the outer end of the rolling gear (216) shaft that passes through the rear end bracket (2).

2. The pre-folding mechanism for a cardboard box according to claim 1, characterized in that: The telescopic adjustment mechanism also includes a support slide (111) that stably supports the rear end stop (2). The fixed end of the support slide (111) is installed on the front end stop (1), and a fixed sleeve (112) is provided on the top of the rear end stop (2). The free end of the support slide (111) is slidably sleeved in the fixed sleeve (112), and an electromagnet assembly that facilitates adsorption and fixation of the support slide (111) is installed on the top of the fixed sleeve (112).

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