Paper box pre-folding mechanism

Abstract

The invention relates to a paper box pre-folding mechanism which comprises a front-end blocking frame and a rear-end blocking frame, a telescopic adjusting mechanism is arranged between the front-end blocking frame and the rear-end blocking frame, a line rolling mechanism and a stable conveying mechanism are further arranged in the front-end blocking frame, and a turnover folding mechanism is arranged in the rear-end blocking frame. The telescopic adjusting mechanism is used for changing the distance between the front-end blocking frame and the rear-end blocking frame, appropriate adjustment can be conveniently carried out according to the length of a paper box, the line rolling mechanism is used for rolling creases on the paper box, and the line rolling mechanism comprises a rolling wheel for rolling the creases and a driving motor for driving the rolling wheel to rotate. The line rolling mechanism is additionally arranged on an original folding mechanism, secondary pressing and folding are conducted after a paper box is pressed and folded on the creasing equipment and before the paper box is folded, it can be guaranteed that stress on the surface of a paper board is gentle and gradual through two times of pressing and folding, and therefore the paper box is effectively prevented from being torn during line pressing, and the line pressing effect is improved.

Description

Technical Field

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

[0002] Paper boxes are a common packaging material for product packaging. When folding paper boxes, creases need to be rolled out on the paper boxes in advance, so that the paper boxes can be folded along the creases later.

[0003] At present, when creasing paper boxes, most of them are pressed and cut into shape in one time. First, the creasing equipment is used to crease the paperboard that has not formed into a paper box, and then it is transferred to the folding mechanism for folding. This makes the paperboard surface subject to force quickly and the impact force is large, which is easy to tear and break. If the paper box is folded after creasing on the creasing equipment and then folded for the second time before folding, the force on the surface of the paperboard forming the paper box can be guaranteed to be gentle and gradual by folding twice, thereby effectively avoiding the tearing of the paper box during creasing and improving the effect of creasing.

[0004] Therefore, a paper box pre-folding mechanism is proposed to solve the above problems. Summary of the invention

[0005] In order to solve the problems raised in the background technology, the present application provides a carton pre-folding mechanism.

[0006] The present application provides a carton pre-folding mechanism, comprising a front end stop frame and a rear end stop frame, a telescopic adjustment mechanism is arranged between the front end stop frame and the rear end stop frame, a wire rolling mechanism and a stable conveying mechanism are also arranged in the front end stop frame, and a flip folding mechanism is arranged in the rear end stop frame: The telescopic adjustment mechanism is used to change the distance between the front end stop frame and the rear end stop frame, so as to facilitate appropriate adjustment according to the length of the paper box. The telescopic adjustment mechanism includes two telescopic motors installed on the front end stop frame, and the output shaft of the telescopic motor is fixedly installed on the top of the rear end stop frame; The rolling mechanism is used to roll out creases on the paper box, and the rolling mechanism includes a rolling wheel for rolling out the creases and a driving motor for driving the rolling wheel to rotate; The flipping and folding mechanism is used to push the two sides of the paper box to flip and fold upward along the creases. The flipping and folding mechanism includes a shovel plate obliquely arranged inside the rear end guard frame, and the bottom end of the shovel plate is rotatably connected to the rear end guard frame through a stabilizing shaft.

[0007] Preferably, the telescopic adjustment mechanism also includes a support slide bar that stably supports the rear end baffle frame, the fixed end of the support slide bar is installed on the front end baffle frame, and a fixed sleeve is provided on the top of the rear end baffle frame, the free end of the support slide bar is slidably sleeved in the fixed sleeve, and an electromagnet assembly is installed on the top of the fixed sleeve for convenient adsorption and fixation of the support slide bar.

[0008] Preferably, the wire rolling mechanism also includes a guide frame, which is mounted on the top inner wall of the front end baffle frame, and a special-shaped screw is rotatably mounted 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 mounted on the special-shaped screw about the center point.

[0009] 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 special-shaped screw, the threaded fittings on the special-shaped screw are equipped with two internal thread mounting brackets, and the rolling wheel is installed at the bottom of the rolling wheel.

[0010] Preferably, the stable conveying mechanism comprises a stable tripod installed inside the front end baffle frame, the triangular inflection points of the stable tripod are rotatably mounted with conveying wheels, and a conveying motor for driving the conveying wheel to rotate is also mounted on the top conveying wheel.

[0011] Preferably, pulleys are installed on the central axis 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 tripod, and the elastic support seats are fixedly connected to the top inner wall of the front end baffle frame.

[0012] Preferably, the flipping and folding mechanism also includes an adjusting roller arranged in the rear end baffle frame, an oblique support rod is hingedly arranged between the middle part of the adjusting roller and the shovel plate, and support slides are installed at both ends of the adjusting roller, and the support slides are slidably installed in the rear end baffle frame.

[0013] Preferably, a rolling gear is installed in the rear end stop frame to cooperate with the damping, the rolling gear is meshed with the top of the supporting slide bar, and a knob is installed on the outer end of the rolling gear shaft that passes through the rear end stop frame.

[0014] In summary, this application includes the following beneficial technical effects: 1. The present invention provides a carton pre-folding mechanism, wherein a telescopic adjustment mechanism is provided between the front end stop frame and the rear end stop frame. The rear end stop frame can be pushed to slide by a telescopic motor, thereby facilitating adjustment of the distance between the rear end stop frame and the front end stop frame. The mechanism can be appropriately adjusted according to the length of the carton, which is more practical. 2. A carton pre-folding mechanism of the present invention is further provided with a special-shaped screw and an internal thread mounting frame in the wire 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 frames can be synchronously pushed closer to or farther from each other when the special-shaped screw rotates, and the adjustment is relatively convenient; 3. A carton pre-folding mechanism of the present invention is also provided with a stable conveying mechanism in the front end stop frame. Through the cooperation of the stable tripod, the conveying wheel can be conveniently installed, and the elastic support seat can be provided to push the conveying wheel to squeeze on the carton. When the conveying wheel rotates, the carton can be pushed to slide forward, which is convenient for processing; 4. A paper box pre-folding mechanism of the present invention is also provided with an adjustable shovel plate in the rear end retaining frame. By adjusting the cooperation between the roller and the diagonal support rod, the shovel plate can be easily pushed to flip, and then the inclination angle of the shovel plate can be adjusted. According to the situation of the paper box, the shovel plate can be adjusted to an angle position suitable for flipping the paper box.

[0015] 5. The present invention adds a creasing mechanism to the original folding mechanism, so that after the paper box is folded on the creasing device, it is folded again before the paper box is folded. By folding twice, it can be ensured that the force on the surface of the paperboard is gentle and gradual, thereby effectively avoiding the paper box from tearing during creasing and improving the creasing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of this application; Figure 2 It is a schematic diagram of the internal structure of the front end baffle frame of the present application; Figure 3 It is a schematic diagram of the splitting of the wire rolling mechanism of the present application; Figure 4 It is a structural schematic diagram of the stable conveying mechanism of the present application; Figure 5 It is a structural schematic diagram of the flipping and folding mechanism of the present application.

[0017] Explanation of the reference numerals: 1. front end baffle; 111. support slide; 112. fixed sleeve; 113. telescopic motor; 121. guide frame; 122. special-shaped screw; 123. adjustment motor; 124. internal thread mounting frame; 125. rolling wheel; 126. driving motor; 131. stabilizing tripod; 132. conveying wheel; 133. conveying motor; 134. pulley; 135. belt; 136. elastic support seat; 2. rear end baffle; 211. shovel plate; 212. stabilizing shaft; 213. adjustment roller; 214. diagonal support rod; 215. support slide; 216. rolling gear; 217. knob. DETAILED DESCRIPTION

[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] Embodiment 1

[0020] Reference Figure 1-Figure 5 As shown, the present application discloses a carton pre-folding mechanism, comprising a front end stop frame 1 and a rear end stop frame 2, a telescopic adjustment mechanism is arranged between the front end stop frame 1 and the rear end stop frame 2, a wire rolling mechanism and a stable conveying mechanism are also arranged in the front end stop frame 1, and a flip folding mechanism is arranged in the rear end stop frame 2: The telescopic adjustment mechanism is used to change the spacing between the front end stop frame 1 and the rear end stop frame 2, so as to facilitate appropriate adjustment according to the length of the paper box. The telescopic adjustment mechanism includes two telescopic motors 113 installed on the front end stop frame 1, and the output shaft of the telescopic motor 113 is fixedly installed on the top of the rear end stop frame 2. The telescopic adjustment mechanism also includes a support slide 111 for stably supporting the rear end stop frame 2. The fixed end of the support slide 111 is installed on the front end stop frame 1, and a fixed sleeve 112 is provided on the top of the rear end stop frame 2. The free end of the support slide 111 is slidably sleeved in the fixed sleeve 112, and an electromagnet assembly for conveniently adsorbing and fixing the support slide 111 is installed on the top of the fixed sleeve 112; In order to facilitate the adjustment of the distance between the front end stop frame 1 and the rear end stop frame 2 according to the length of the paper box, a telescopic adjustment mechanism is provided between the front end stop frame 1 and the rear end stop frame 2. When the telescopic motor 113 is started, the rear end stop frame 2 can be pushed to slide, and the supporting slide bar 111 can slide in the fixed sleeve 112, thereby changing the distance between the front end stop frame 1 and the rear end stop frame 2. After adjusting to the appropriate position, the electromagnet assembly is turned on to adsorb and fix the supporting slide bar 111, thereby fixing the position of the rear end stop frame 2, and the adjustment is relatively convenient.

[0021] The rolling mechanism is used to roll out creases on the paper box. The rolling mechanism includes a rolling wheel 125 for rolling the creases and a driving 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 frame 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 the two rolling wheels 125 are threadedly mounted on the special-shaped screw 122 about the center point. An adjusting motor 123 is also installed at one end of the guide frame 121, and the output shaft of the adjusting motor 123 is fixedly connected to one end of the special-shaped screw 122. Two internal thread mounting frames 124 are threadedly mounted on the special-shaped screw 122, and the rolling wheel 125 is installed at the bottom of the rolling wheel 125. In order to roll out creases on the paper box, when the driving motor 126 rotates slowly, it can push the rolling wheel 125 to rotate. When the paper box slides forward, the rolling wheel 125 can roll out creases, which is convenient for subsequent folding. According to the width of the paper box, the spacing between the two rolling wheels 125 can also be adjusted to control the size of the folded paper box. When the adjustment 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, when the special-shaped screw 122 rotates, the two internal thread mounting frames 124 can be synchronously pushed closer to or away from each other, and the positions of the two rolling wheels 125 can be synchronously adjusted, and the adjustment is relatively convenient.

[0022] The flipping and folding mechanism is used to push the two sides of the paper box to flip and fold upward along the crease. The flipping and folding mechanism includes a shovel plate 211 obliquely arranged inside the rear end stop frame 2, and the bottom end of the shovel plate 211 is rotatably connected to the rear end stop frame 2 through a stabilizing shaft 212. The flipping and folding mechanism also includes an adjusting roller 213 arranged in the rear end stop frame 2, and an oblique support rod 214 is hingedly arranged between the middle part of the adjusting roller 213 and the shovel plate 211, and both ends of the adjusting roller 213 are installed with supporting slide bars 215, and the supporting slide bar 215 is slidably installed in the rear end stop frame 2. A rolling gear 216 is also installed in the rear end stop frame 2 to cooperate with damping. The rolling gear 216 is meshed with the top of the supporting slide bar 215, and a knob 217 is also installed on the outer end of the shaft of the rolling gear 216 that passes through the rear end stop frame 2. After the paper box is creased and enters the rear end retaining frame 2, the two sides of the paper box will contact the shovel plate 211. Since the shovel plate 211 is flipped, it can push the two sides of the paper box to flip upward, deepen the crease, and facilitate the subsequent folding process.

[0023] Reference Figure 1 , Figure 4 As shown, the stable conveying mechanism includes a stable tripod 131 installed inside the front end baffle frame 1, and the triangular inflection points of the stable tripod 131 are rotatably installed with conveying wheels 132, and the conveying wheel 132 located at the top is also equipped with a conveying motor 133 for driving the conveying wheel 132 to rotate, and pulleys 134 are installed on the central axes on the same side of the three conveying wheels 132, and belts 135 are synchronously connected to the three pulleys 134, and elastic support seats 136 are also installed on the two upwardly extending ends of the stable tripod 131, and the elastic support seats 136 are fixedly connected to the top inner wall of the front end baffle frame 1.

[0024] Furthermore, in order to prevent the roller 125 from being in too close contact with the paper box, which would make it difficult for the paper box to slide, a stabilizing tripod 131 is provided in the front end retaining frame 1. With the cooperation of the stabilizing tripod 131, the conveying wheel 132 can be easily installed, and the elastic support seat 136 can be provided to push the conveying wheel 132 to squeeze on the paper box. When the conveying wheel 132 rotates, the paper box can be pushed to slide forward, which is convenient for processing.

[0025] The implementation principle of a carton pre-folding mechanism of the present application is: When in use, the paper box is transported by the conveyor belt and passes through the front end frame 1 and the rear end frame 2 in sequence. The roller 125 and the conveying wheel 132 arranged in the front end frame 1 can drive the roller 125 to rotate when the driving motor 126 is started. Through the contact between the roller 125 and the paper box, a crease can be rolled out on the paper box, which makes it convenient for the paper box to be folded along the crease. In order to avoid the roller 125 from being in too close contact with the paper box, which makes it difficult for the paper box to slide, a stabilizing tripod 131 is also arranged in the front end frame 1. The cooperation of the conveying wheel 132 can facilitate the installation of the conveying wheel 132. In addition, a conveying motor 133 is also installed on the stable tripod 131. When the conveying motor 133 drives the upper conveying 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 then drive the two conveying wheels 132 below to rotate. The elastic support seat 136 can push the conveying wheel 132 to squeeze on the paper box, so as to facilitate the paper box to be transported into the rear end stop frame 2; After the paper box enters the rear end retaining frame 2, the two sides of the paper box will contact the shovel plate 211. Since the shovel plate 211 is turned over, it can push the two sides of the paper box to turn upward, deepen the crease, and facilitate the subsequent folding process; Moreover, a telescopic adjustment mechanism is provided between the front end stop frame 1 and the rear end stop frame 2. When the telescopic motor 113 is started, the rear end stop frame 2 can be pushed to slide, and the support slide bar 111 can slide in the fixed sleeve 112, thereby changing the distance between the front end stop frame 1 and the rear end stop frame 2, and can be properly adjusted according to the length of the paper box. After adjusting to a suitable position, the electromagnet assembly is turned on, and the support slide bar 111 can be adsorbed and fixed, thereby fixing the position of the rear end stop frame 2, and the adjustment is relatively convenient; In addition, before the crease is rolled out, the distance between the two rolling wheels 125 can be adjusted according to the width of the paper box to control the size of the paper box after folding. When the adjustment 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 frames 124 can be synchronously pushed closer to or farther from each other when the special-shaped screw 122 rotates, and the positions of the two rolling wheels 125 can be synchronously adjusted, which is convenient for adjustment. Finally, an adjustable shovel plate 211 is also provided in the rear end guard frame 2. By adjusting the cooperation between the roller 213 and the diagonal support rod 214, the shovel plate 211 can be easily pushed to flip, and then the inclination angle of the shovel plate 211 can be adjusted. According to the situation of the paper box, the shovel plate 211 can be adjusted to an angle suitable for the flipping of the paper box, which is more practical.

[0026] The above shows and describes 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 by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A paper box pre-folding mechanism, comprising a front end stop frame (1) and a rear end stop frame (2), wherein a telescopic adjustment mechanism is arranged between the front end stop frame (1) and the rear end stop frame (2), a wire rolling mechanism and a stable conveying mechanism are also arranged in the front end stop frame (1), and a flipping and folding mechanism is arranged in the rear end stop frame (2), characterized in that: The telescopic adjustment mechanism is used to change the distance between the front end stop frame (1) and the rear end stop frame (2) so as to facilitate appropriate adjustment according to the length of the paper box, the telescopic adjustment mechanism comprising two telescopic motors (113) mounted on the front end stop frame (1), and the output shaft of the telescopic motor (113) is fixedly mounted on the top of the rear end stop frame (2); The rolling mechanism is used to roll out creases on the paper box, and the rolling mechanism comprises a rolling wheel (125) for rolling out the creases and a driving motor (126) for driving the rolling wheel (125) to rotate; The flipping and folding mechanism is used to push the two sides of the paper box to flip and fold upwards along the folds, and the flipping and folding mechanism comprises a shovel plate (211) arranged obliquely inside the rear end retaining frame (2), and the bottom end of the shovel plate (211) is rotatably connected to the rear end retaining frame (2) via a stabilizing shaft (212).

2. A carton pre-folding mechanism according to claim 1, characterized in that: The telescopic adjustment mechanism further comprises a support slide bar (111) for stably supporting the rear end stop frame (2); a fixed end of the support slide bar (111) is mounted on the front end stop frame (1), and a fixed sleeve (112) is arranged on the top of the rear end stop frame (2); a free end of the support slide bar (111) is slidably sleeved in the fixed sleeve (112), and an electromagnet assembly is installed on the top of the fixed sleeve (112) for conveniently adsorbing and fixing the support slide bar (111).

3. A carton pre-folding mechanism according to claim 1, characterized in that: The wire rolling mechanism further comprises a guide frame (121), the guide frame (121) being mounted on the top inner wall of the front end baffle frame (1), and a special-shaped screw (122) being rotatably mounted inside the guide frame (121), the threads at both ends of the special-shaped screw (122) being symmetrically arranged about a center point, and two rolling wheels (125) being thread-matchedly mounted on the special-shaped screw (122) about the center point.

4. A carton pre-folding mechanism according to claim 3, characterized in that: An adjusting motor (123) is also installed at one end of the guide frame (121); an output shaft of the adjusting motor (123) is fixedly connected to one end of a special-shaped screw rod (122); two internally threaded mounting brackets (124) are fitted on the threads of the special-shaped screw rod (122); and the rolling wheel (125) is installed at the bottom of the rolling wheel (125).

5. A carton pre-folding mechanism according to claim 1, characterized in that: The stable conveying mechanism comprises a stable tripod (131) mounted inside the front end stop frame (1), the triangular folding points of the stable tripod (131) are all rotatably mounted with conveying wheels (132), and the conveying wheel (132) located at the top is also mounted with a conveying motor (133) that cooperates with the conveying wheel (132) to drive the conveying wheel (132) to rotate.

6. A carton pre-folding mechanism according to claim 5, characterized in that: A pulley (134) is installed on the central axis on the same side of the three conveying wheels (132), and the three pulleys (134) are synchronously connected to a belt (135). Elastic support seats (136) are also installed on the two upwardly extending ends of the stabilizing tripod (131), and the elastic support seats (136) are fixedly connected to the top inner wall of the front end stop frame (1).

7. A carton pre-folding mechanism according to claim 1, characterized in that: The flipping and folding mechanism further comprises an adjusting roller (213) arranged in the rear end retaining frame (2), an oblique support rod (214) being hingedly arranged between the middle portion of the adjusting roller (213) and the shovel plate (211), and supporting slide bars (215) being installed at both ends of the adjusting roller (213), and the supporting slide bars (215) being slidably installed in the rear end retaining frame (2).

8. A carton pre-folding mechanism according to claim 7, characterized in that: A rolling gear (216) is also installed in the rear end retaining frame (2) to cooperate with the damping. The rolling gear (216) is meshed with the top of the supporting slide bar (215), and a knob (217) is also installed on the outer end of the shaft of the rolling gear (216) that passes through the rear end retaining frame (2).

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