A cardboard bundling device for corrugated box production

Abstract

The present invention relates to the technical field of bundling and packaging, and specifically discloses a cardboard bundling device for producing corrugated paperboard boxes, comprising: a frame, a bundling mechanism and a limiting mechanism, wherein a conveying device is horizontally arranged on the frame along a front-to-back direction, the bundling mechanism is arranged on the frame to bundle a cardboard pile delivered by the conveying device, a limiting mechanism is arranged between a bundling belt used by the bundling mechanism to bundle the cardboard pile and the cardboard pile, the limiting mechanism comprises four limiting components, the limiting components comprise a right-angle plate and an acute-angle plate, and the four right-angle plates are circumferentially arranged on the four corners of the cardboard pile along the front-to-back direction of the cardboard pile; the cardboard bundling device for producing corrugated paperboard boxes of the present invention can adapt to different tightening forces of the bundling belt due to the acute-angle plates with variable angles, so as to bundle cardboard piles of different specifications without causing damage to the edges and corners of the cardboard pile.

Description

Technical Field

[0001] The invention relates to the technical field of bundling and packaging, and in particular to a cardboard bundling device for producing corrugated paper boxes. Background Art

[0002] Cardboard bundling balers can quickly bundle and pack cardboard. There are single-belt bundling balers and double-belt bundling balers in the prior art. Single-belt balers can pack cardboards of different sizes, while double-belt balers are mainly used for packing small cardboards. It can improve the packaging efficiency of cardboard and reduce manual labor. It is widely used in logistics warehousing, food, medicine, daily chemicals, textiles and other industries.

[0003] A Chinese patent application document with application publication number CN114906379A discloses a corrugated cardboard bundling device for corrugated box production, comprising a C-shaped plate, two symmetrically distributed conveying rollers are connected to the inner walls of the two sides of the C-shaped plate through bearings, and the outer walls of the two conveying rollers are sleeved with the same conveyor belt, and a motor is fixed to the outer wall of one side of the C-shaped plate. The L-shaped plate can transport the cardboard on the conveyor belt to the placement plate, the pressing plate can press the cardboard on the placement plate, and then the servo motor can drive the placement plate to rotate, which is convenient for subsequent bundling, thereby achieving the effect of facilitating bundling and packaging, and improving work efficiency. The operation of multiple second electric slide rails can drive the two side plates to run relative to each other to adapt to cardboards of different widths, and then the operation of the two first electric telescopic rods can allow the shovel plate at the bottom of the clamping plate to shovel the cardboard, and the two second electric telescopic rods can drive the squeezing plate to squeeze the cardboard on the two shovel plates to avoid falling off during transportation.

[0004] In the related art, when corrugated cardboard piles are packaged during the production process, since the corrugated cardboard piles have many layers, in order to ensure the binding force of the corrugated cardboard piles, it is necessary to increase the binding force of the binding rope, which causes marks on the surface of the outermost corrugated cardboard and even causes damage at its corners. Summary of the invention

[0005] The present invention provides a cardboard bundling device for producing corrugated paper boxes, aiming to solve the technical problem in the related art that due to the large number of layers of corrugated paperboard piles, in order to ensure the bundling force of the corrugated paperboard piles, it is necessary to increase the bundling force of the bundling ropes, which leads to marks on the surface of the outermost corrugated paperboard and even damage at its corners.

[0006] The present invention provides a cardboard bundling device for producing corrugated paper boxes, comprising: a frame, a conveying device horizontally arranged on the frame, and a bundling mechanism arranged on the frame, a limiting mechanism arranged between the bundling belt and the cardboard pile, the limiting mechanism comprising four limiting components, the limiting components comprising a right-angle plate and an acute-angle plate, the four right-angle plates are circumferentially arranged on the four corners of the cardboard pile along the front and rear directions of the cardboard pile, notches for accommodating the acute-angle plates are provided at the corners of the right-angle plates, two groups of slide grooves are arranged on the front and rear sides of the right-angle plates, the two groups of slide grooves are respectively arranged on the right-angle sides of the right-angle plates, one group of slide grooves comprises two mutually perpendicular ones, the front and rear side walls at both ends of the acute-angle plates are both provided with guide columns, the guide columns are slidably matched with the slide grooves, the acute-angle plates slide along the slide grooves relative to the right-angle plates, the angles of the acute-angle plates change, and the bundling belt forms a closed loop through the outer sides of the four acute-angle plates.

[0007] The effect is that by setting the right-angle plates and the acute-angle plates, when bundling the cardboard pile, the four right-angle plates are respectively buckled on the four corners of the cardboard pile, the strapping belt squeezes the acute-angle plates to make the acute-angle plates slide along the right-angle plates, and the right-angle plates are pressurized to fix the cardboard pile. The acute-angle plates with variable angles can adapt to the different tightening forces of the strapping belt and can be used to bundle cardboard piles of different specifications.

[0008] Preferably, the right-angle plate includes a straight plate 1, a straight plate 2 and a connecting plate 1, the connecting plate 1 is convex, and the extended intersection line segments of the straight plate 1 and the straight plate 2 do not overlap with the connecting plate 1, which has the effect that: by setting the connecting plate 1 to be convex, when the cardboard pile is limited, the four corners of the cardboard pile will not contact the connecting plate 1, thereby ensuring that the four corners of the cardboard pile will not be damaged.

[0009] Preferably, the connecting plate 1 is an elastic plate, and in the initial state, the connecting plate 1 makes the angle between the straight plate 1 and the straight plate 2 to be 90 degrees.

[0010] Preferably, the acute-angled plate comprises a straight plate three, a straight plate four and a connecting plate two, and guide columns are provided on the front and rear side walls of the straight plate three and the straight plate four away from one end of the connecting plate two, and the connecting plate two is an elastic plate, which has the effect of: by setting the connecting plate two as an elastic plate, it is ensured that after the bundling force is applied during transportation, the acute-angled plate can be further squeezed to make the connecting plate two deformed under the force, thereby providing a greater fixing force for the right-angled plate, and the acute-angled plate can be reset after the external force is removed, so that the binding force of the strapping belt on the cardboard pile is restored to the initial state, thereby preventing the force on the cardboard pile from being unable to return to the initial state due to further force.

[0011] Preferably, a limit rod is provided in the middle of the notch, and both ends of the limit rod are fixedly connected to the front and rear side walls of the notch respectively, and a notch for the strapping belt to pass through is provided in the middle of the limit rod. When the acute-angle plate slides along the slide groove to the limit state, there is a gap for the strapping belt to pass through between the limit rod and the outer side of the acute-angle plate, and the limit rod is a flexible rod. In the initial state, the limit rod is perpendicular to the side wall of the notch, and its effect is that: by setting the limit rod, after the strapping belt is tightened, the strapping belt will be located in the gap, so as to ensure that when the strapping belt is cut, the acute-angle plate is reset and the strapping belt is squeezed onto the limit rod, so that the strapping belt has resistance when passing through the gap, so as to prevent the cardboard pile from being quickly reset after the strapping belt is cut, resulting in collapse and other problems.

[0012] Preferably, the strapping mechanism comprises a feeding assembly, which is arranged along the width direction of the cardboard pile and pushes two limit assemblies on the lower side of the cardboard pile to a state of being in close contact with the cardboard pile.

[0013] Preferably, the surface of the limiting rod is rough.

[0014] Preferably, the straight plate one and the straight plate two are provided with rubber pads on the side in contact with the cardboard pile, which has the effect of reducing the deformation of the cardboard pile caused by the right-angle plate after being compressed by arranging rubber pads on the side in contact with the cardboard pile.

[0015] The beneficial effects of the present invention are:

[0016] 1. By setting right-angle plates and acute-angle plates, when bundling cardboard piles, four right-angle plates are buckled on the four corners of the cardboard pile respectively, and the strapping belt squeezes the acute-angle plates so that the acute-angle plates slide along the right-angle plates, and the right-angle plates are pressurized to fix the cardboard pile. The acute-angle plates with variable angles can adapt to the different tightening forces of the strapping belt and bundle cardboard piles of different specifications.

[0017] 2. By setting the second connecting plate as an elastic plate, it is ensured that after the strapping belt is subjected to force during transportation, it can further squeeze the sharp-angle plate to make the second connecting plate deform under force, thereby providing a greater fixing force for the right-angle plate. After the external force is removed, the sharp-angle plate can be reset, so that the binding force of the strapping belt on the cardboard pile is restored to the initial state, preventing the cardboard pile from being unable to be restored to the initial state due to further force.

[0018] 3. By setting the limit rod, after the strapping is tightened, the strapping will be located in the gap to ensure that when the strapping is cut, the sharp-angle plate will reset and push the strapping onto the limit rod, so that there will be resistance when the strapping passes through the gap, preventing the cardboard pile from quickly resetting and causing collapse after the strapping is cut. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall installation of the bundling device.

[0020] Figure 2 It is a schematic diagram of the overall structure of the strapping mechanism.

[0021] Figure 3 It is a schematic diagram of the bundled state of cardboard piles.

[0022] Figure 4 It is a schematic diagram of the overall structure of the limit assembly.

[0023] Figure 5 yes Figure 4 Enlarged schematic diagram of part A.

[0024] Figure 6 It is a schematic diagram of the local structure of the limiting mechanism.

[0025] Figure 7 It is a partial structural diagram of the limit component.

[0026] Figure 8 yes Figure 7 Schematic diagram of the enlarged portion B.

[0027] Reference numerals:

[0028] 1. Frame; 11. Conveying device; 2. Strapping mechanism; 21. Strapping belt; 22. Feeding assembly; 3. Limiting mechanism; 31. Limiting assembly; 32. Right-angle plate; 321. Notch; 322. Slide; 323. Limiting rod; 324. Notch; 325. Straight plate 1; 326. Straight plate 2; 327. Connecting plate 1; 33. Sharp-angle plate; 331. Guide column; 332. Straight plate 3; 333. Straight plate 4; 334. Connecting plate 2; 35. Gap; 4. Cardboard pile. DETAILED DESCRIPTION

[0029] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0030] like Figures 1 to 8As shown, a cardboard bundling device for corrugated paperboard box production of the present invention comprises a frame 1, a bundling mechanism 2 and a limiting mechanism 3. A conveying device 11 is horizontally arranged in the front-to-back direction of the frame 1, which is used to convey the stacked cardboard pile 4 to the bottom of the bundling mechanism 2. The bundling mechanism 2 is arranged on the frame 1 to bundle the cardboard pile 4 delivered by the conveying device 11. A limiting mechanism 3 is arranged between the bundling belt 21 used by the bundling mechanism 2 to bundle the cardboard pile 4 and the cardboard pile 4. The limiting mechanism 3 comprises four limiting components 31, and the limiting components 31 comprise a right-angle plate 32 and an acute-angle plate 33. The four right-angle plates 32 are arranged along the cardboard pile 4 is arranged in the front-to-back direction and circumferentially on the four corners of the cardboard pile 4. A notch 321 for accommodating the acute-angle plate 33 is provided on the right-angle plate 32. The acute-angle plate 33 slides along the right-angle plate 32. When sliding, the angle of the acute-angle plate 33 changes, and the cardboard pile 4 is limited. Under the action of the strapping mechanism 2 (the strapping mechanism 2 is a prior art and is used to wrap the strapping belt 21 around the cardboard pile 4), the strapping belt 21 passes through the outer sides of the four acute-angle plates 33 to form a closed loop. According to the length of the cardboard pile 4, multiple sets of limiting mechanisms 3 can be set in the length direction of the cardboard pile 4 to meet the fixation of cardboard piles 4 of different specifications.

[0031] like Figures 2 to 8 As shown, the right-angle plate 32 comprises a straight plate 1 325, a straight plate 2 326 and a connecting plate 1 327. The straight plate 1 325 and the straight plate 2 326 are connected by the connecting plate 1 327. The connecting plate 1 327 is convex, and the connecting plate 1 327 is an elastic plate. The connecting plate 1 327 is preferably a deformable rubber or plastic. In the initial state, the connecting plate 1 327 makes the angle between the straight plate 1 325 and the straight plate 2 326 90 degrees. In this embodiment, the connecting plate 1 327 is an arc-shaped convex shape, and the intersection line of the straight plate 1 325 and the straight plate 2 326 is extended. The segment does not overlap with the connecting plate 1 327. When the right-angle plate 32 is buckled to the corner of the cardboard pile 4, the inner wall of the connecting plate 1 327 does not contact the cardboard pile 4. The acute-angle plate 33 includes a straight plate 332, a straight plate 4 333 and a connecting plate 2 334. The straight plate 332 and the straight plate 4 333 are connected by the connecting plate 2 334. The straight plate 332 and the straight plate 4 333 are hard plates, preferably hard plastic plates. The connecting plate 2 334 is an elastic plate, preferably a metal spring. In the initial state, the connecting plate 2 334 makes the angle between the straight plate 332 and the straight plate 4 333 an acute angle.

[0032] like Figures 3 to 6As shown, a notch 321 for accommodating the acute angle plate 33 is provided on the right angle plate 32, and the notch 321 extends from the middle position of the connecting plate 1 327 to the straight plate 1 325 and the straight plate 2 326, and the depth of the notch 321 on the straight plate 1 325 and the straight plate 2 326 is consistent. Two groups of slide grooves 322 are provided on the front and rear sides of the right angle plate 32, and the slide grooves 322 are respectively provided on the front and rear sides of the straight plate 1 325 and the straight plate 2 326. A group of slide grooves 322 includes the same grooves on the straight plate 1 325 and the straight plate 2 326. Two mutually perpendicular groups of slide grooves 322 are arranged opposite to each other, and guide columns 331 are provided on the front and rear side surfaces of one end of the straight plate three 332 and the straight plate four 333 away from the connecting plate two 334, and the guide columns 331 are perpendicular to the front and rear side surfaces of the straight plate three 332 and the straight plate four 333, and the guide columns 331 are slidably matched with the slide grooves 322, and an elastic component is arranged in the slide grooves 322 to keep the movement distances of the guide columns 331 of the straight plates three 332 and the straight plates four 333 the same, so that the angle bisectors of the right-angle plate 32 and the acute-angle plate 33 remain in the same plane.

[0033] like Figures 2 to 8 As shown, a limiting rod 323 is provided in the middle of the slot 321, and the limiting rod 323 is provided in the slot 321 along the front-back direction, and the two ends of the limiting rod 323 are respectively fixedly connected to the front and rear side walls of the slot 321. In the initial state, the limiting rod 323 is perpendicular to the side walls of the slot 321, and a notch 324 for the strapping belt 21 to pass through is provided in the middle of the limiting rod 323. When the acute angle plate 33 slides to the limit position along the right angle plate 32, the limiting rod 323 and the acute angle plate 33 are in contact with each other. There is a gap 35 between the outer sides for the strapping belt 21 to pass through. After the strapping belt 21 completes bundling the cardboard pile 4, the strapping belt 21 will be located in the gap 35. After the strapping belt 21 is cut off, the acute-angled plate 33 will gradually return to its initial state. At this time, the outer side of the acute-angled plate 33 will abut the strapping belt 21 against the limiting rod 323, so that the strapping belt 21 slowly passes through the gap 35, so as to prevent the cardboard pile 4 from suddenly losing its restraint force and collapsing after the strapping belt 21 is cut off.

[0034] like Figures 1 to 8 As shown, the above-mentioned strapping mechanism 2 also includes a feeding assembly 22, which is arranged on the frame 1 along the width direction of the cardboard pile 4. When the cardboard pile 4 is transported to the bottom of the strapping mechanism 2 through the conveying device 11, the feeding assembly 22 pushes the two limiting assemblies 31 on the lower side of the cardboard pile 4 to the right angle plate 32 to be close to the cardboard pile 4.

[0035] like Figures 2 to 8As shown, the surface of the limiting rod 323 is rough, preferably made of rubber material, which can increase the friction between the limiting rod 323 and the strapping belt 21, and has a better speed limiting effect on the strapping belt 21. At the same time, rubber pads are provided on the surfaces of the straight plate 1 325 and the straight plate 2 326 that contact the cardboard pile 4. By providing flexible rubber pads, the deformation of the cardboard pile 4 when the right-angle plate 32 and the cardboard pile 4 are squeezed by force is reduced, and the cardboard pile 4 is better protected.

[0036] The working principle of this embodiment is as follows: the conveying device 11 conveys the neatly stacked cardboard pile 4 forward and conveys the cardboard pile 4 to the position of the bundling mechanism 2; the feeding component 22 pushes the two limit components 31 on the lower side of the cardboard pile 4 to the position where the right-angle plate 32 is close to the cardboard pile 4 and stops, and places the two limit components 31 on the upper side of the cardboard pile 4 to the specified position; the four limit components 31 are arranged circumferentially along the front-to-back direction on the cardboard pile 4; at this time, the bundling mechanism 2 moves downward to pressurize and bundle the cardboard pile 4; the guide columns 331 of the four acute-angle plates 33 slide along the corresponding slide grooves 322 respectively, and the acute-angle plates 33 are moved along the corresponding slide grooves 322. The angle between the straight plate three 332 and the straight plate four 333 of the angle plate 33 becomes larger, the connecting plate two 334 is deformed, and the straight plate one 325 and the straight plate two 326 of the right-angle plate 32 pressurize and position the cardboard pile 4. At this time, the strapping belt 21 forms a closed loop around the outer sides of the four acute-angle plates 33, and the strapping belt 21 tightens the acute-angle plates 33 to deform the acute-angle plates 33. The strapping belt 21 passes over the limiting rod 323 and is located in the gap 35. At this time, one round of strapping is completed. According to the size of the cardboard pile 4, the conveying device 11 is adjusted to convey the cardboard pile 4 forward, and then subsequent multiple rounds of strapping are performed. When the strapping is completed, the cardboard pile 4 is taken away.

Claims

1. A cardboard bundling device for corrugated box production, comprising: The frame is provided with a conveying device horizontally on the frame, characterized in that it also includes a strapping mechanism arranged on the frame, the limiting mechanism is arranged between the strapping belt and the cardboard pile, the limiting mechanism includes four limiting components, the limiting components include a right-angle plate and an acute-angle plate, the four right-angle plates are circumferentially arranged on the four corners of the cardboard pile along the front and rear directions of the cardboard pile, a notch for accommodating the acute-angle plate is provided at the corner of the right-angle plate, two groups of slide grooves are provided on the front and rear sides of the right-angle plate, the two groups of slide grooves are respectively arranged on the right-angle sides of the right-angle plate, one group of slide grooves includes two mutually perpendicular ones, the front and rear side walls at both ends of the acute-angle plate are provided with guide columns, the guide columns are slidably matched with the slide grooves, the acute-angle plate slides along the slide groove relative to the right-angle plate, the angle of the acute-angle plate changes, and the strapping belt passes through the outer sides of the four acute-angle plates to form a closed loop; A limit rod is arranged in the middle of the slot, and both ends of the limit rod are fixedly connected to the front and rear side walls of the slot respectively. A notch for the strapping belt to pass through is arranged in the middle of the limit rod. When the acute-angle plate slides along the slide groove to the limit state, there is a gap between the limit rod and the outer side of the acute-angle plate for the strapping belt to pass through. The limit rod is a flexible rod, and in the initial state, the limit rod is perpendicular to the side walls of the slot.

2. A cardboard bundling device for corrugated box production according to claim 1, characterized in that: The right-angle plate comprises a straight plate 1, a straight plate 2 and a connecting plate 1, wherein the connecting plate 1 is convex, and the extended intersecting line segments of the straight plate 1 and the straight plate 2 do not overlap with the connecting plate 1.

3. A cardboard bundling device for corrugated box production according to claim 2, characterized in that: The connecting plate 1 is an elastic plate. In the initial state, the connecting plate 1 makes the included angle between the straight plate 1 and the straight plate 2 to be 90 degrees.

4. A cardboard bundling device for corrugated box production according to claim 1, characterized in that: The acute-angle plate comprises a straight plate three, a straight plate four and a connecting plate two. Guide columns are arranged on the front and rear side walls of the straight plate three and the straight plate four away from one end of the connecting plate two. The connecting plate two is an elastic plate.

5. A cardboard bundling device for corrugated box production according to claim 1, characterized in that: The strapping mechanism comprises a feeding assembly, which is arranged along the width direction of the cardboard pile and pushes two limit assemblies on the lower side of the cardboard pile to a state of being in close contact with the cardboard pile.

6. A cardboard bundling device for corrugated box production according to claim 4, characterized in that: The surface of the limiting rod is rough.

7. A cardboard bundling device for corrugated box production according to claim 2, characterized in that: The first and second straight boards are provided with rubber pads on the sides in contact with the cardboard pile.

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