A carton flap folding assembly and a carton flap folding and sealing device

Abstract

This utility model relates to a carton folding lid assembly, comprising: a first support frame; a first power source hinged to the first support frame; a first push plate, one end of which is hinged to the first support frame, and the middle position of the first push plate is connected to the output end of the first power source, wherein the first power source drives the first push plate to rotate around the hinge point to achieve the folding of the carton bottom cover upward and inward into the carton; a second power source fixedly mounted on the first support frame; and an inner pressing member connected to the output end of the second power source, wherein the second power source drives the inner pressing member to contact the carton bottom cover before the first push plate and push the carton bottom cover inward into the carton. In this carton folding lid assembly, the first push plate is optimized to be a single-plate type. After the inner pressing member completes its action, the bottom cover is folded, which can prevent the single-plate type from rising too quickly and causing damage to the edges of the carton.

Description

Technical Field

[0001] This utility model relates to the field of automated production equipment technology, and in particular to a carton folding and sealing assembly and a carton folding and sealing device. Background Technology

[0002] Cardboard boxes are the most widely used packaging products. The cardboard box packaging process requires cardboard box folding machines and cardboard box sealing devices. A cardboard box folding machine is an automatic folding and sealing device that reduces labor intensity and improves production efficiency. It is widely used in assembly line production to press and close the four flaps (sheets) of the cardboard box towards the main body of the box, sealing and packaging the product for easy storage and transportation.

[0003] However, most carton folding machines and carton sealing devices still have some shortcomings. For example, the materials of the boxes opened by the carton opening machines on the market are uncertain, and the bottom folding part of the box is easily interfered with by the folding component, which can easily cause the box to break. This can easily lead to the waste of production materials, and the processing of damaged cartons requires additional working time, which reduces the working efficiency of automated production lines. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the problem that the carton folding and flap assembly on the automated production line in the prior art interferes with the carton, which easily causes damage to the carton, not only increasing production costs, but also affecting the work rhythm of the automated assembly line.

[0005] To solve the above-mentioned technical problems, this utility model provides a carton folding assembly, including: a first support frame; a first power source hinged to the first support frame; a first push plate, one end of which is hinged to the first support frame, and the middle position of the first push plate is connected to the output end of the first power source, wherein the first power source drives the first push plate to rotate around the hinge point to achieve the folding of the carton bottom cover upward and inward into the carton; a second power source fixedly installed on the first support frame; and an inner pressure member connected to the output end of the second power source, wherein the second power source drives the inner pressure member to contact the carton bottom cover before the first push plate and push the carton bottom cover inward into the carton.

[0006] In one embodiment of this utility model, the inner pressure component includes a first rubber wheel, a second rubber wheel, and a rubber wheel mounting bracket. The rubber wheel mounting bracket is connected to the output end of a second power source. Both the first rubber wheel and the second rubber wheel are mounted on the rubber wheel mounting bracket. The first rubber wheel and the second rubber wheel are in contact with the bottom cover of the carton.

[0007] In one embodiment of the present invention, the second rubber wheel is located below the first rubber wheel, and the second rubber wheel is located on the side of the first rubber wheel near the bottom cover of the carton.

[0008] In one embodiment of the present invention, the first support frame is provided with a first rotating shaft, and one end of the first push plate is hinged to the first support frame through the first rotating shaft.

[0009] In one embodiment of this utility model, the first push plate is a rectangular flat plate, and the two corners of the first push plate near the bottom cover of the carton are both rounded.

[0010] This utility model also provides a carton folding and sealing device, including: a carton support assembly, a left folding assembly, a right folding assembly, a bottom folding assembly, and a carton pusher assembly. The carton support assembly is used to open two opposite bottom covers of the carton to the outside of the carton. The left folding assembly and the right folding assembly are arranged opposite to each other and are used to fold one pair of bottom covers of the carton to the inside of the carton. The bottom folding assembly is used to fold the other pair of bottom covers of the carton to the inside of the carton. The carton pusher assembly is used to push the folded carton to the next station. The left folding assembly is the carton folding assembly.

[0011] In one embodiment of this utility model, the carton support assembly includes a carton support base, a carton support driving cylinder, and two symmetrically arranged carton support plates. The carton support driving cylinder is fixedly installed on the carton support base. The two symmetrically arranged carton support plates are connected to the output end of the carton support driving cylinder. Inclined portions are provided on the ends of the carton support plates that are far apart from each other. The inclined portions of the two symmetrically arranged carton support plates are arranged in a figure-eight shape. The carton support driving cylinder drives the inclined portions to open the bottom cover of the carton to the outside of the carton.

[0012] In one embodiment of the present invention, the right-folding cover assembly includes a second support frame, a folding cover driving cylinder, and a second push plate. The folding cover driving cylinder is hinged to the second support frame. One end of the second push plate is hinged to the second support frame, and the middle position of the second push plate is hinged to the output end of the folding cover driving cylinder. The folding cover driving cylinder drives the second push plate to fold the bottom cover of the carton upward and inward into the carton.

[0013] In one embodiment of this utility model, the bottom-folding assembly includes a third support frame, a bottom-folding drive cylinder, a linear guide rail, a slider, a movable bracket, and two symmetrically arranged rockers. The linear guide rail is fixedly mounted on the third support frame. The output end of the bottom-folding drive cylinder is connected to the movable bracket. The slider is fixedly connected to the movable bracket. The slider is mounted on the linear guide rail and can slide along the linear guide rail. The rockers are rotatably mounted on the movable bracket. The third support frame is provided with two symmetrically arranged limiting plates. The two symmetrically arranged rockers and the two symmetrically arranged limiting plates are arranged in a one-to-one correspondence. One end of the rocker is connected to a connecting rod, and the other end of the rocker is connected to a bottom-folding push plate. When the bottom-folding drive cylinder drives the movable bracket to move, the connecting rod contacts the limiting plate to realize that the rocker drives the bottom-folding push plate to rotate and fold the bottom cover of the carton.

[0014] In one embodiment of this utility model, the carton pusher assembly includes a linear cylinder and an L-shaped push rod. One end of the L-shaped push rod is connected to the mover of the linear cylinder, and the linear cylinder drives the L-shaped push rod to push the carton.

[0015] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial effects:

[0016] The carton folding and sealing assembly of this utility model features a first push plate optimized as a single plate. After the internal pressing mechanism completes its action, the bottom cover folds, preventing damage to the carton edges caused by excessively rapid upward movement of a single plate. The carton folding and sealing device of this utility model, through the coordinated operation of the left folding and right folding assembly and the bottom folding assembly, can automatically fold and seal the four bottom covers (sheets) of the carton. Moreover, the entire process is automated, requiring no manual assistance, resulting in low labor intensity, high production efficiency, and suitability for large-scale industrial production. Attached Figure Description

[0017] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0018] Figure 1 This is an isometric side view of the carton flap assembly in a preferred embodiment of the present invention;

[0019] Figure 2 This is a front view of the carton flap assembly in a preferred embodiment of the present invention;

[0020] Figure 3 This is an isometric side view of the carton folding and sealing device in a preferred embodiment of the present invention;

[0021] Figure 4 This is an isometric side view of the support box assembly in a preferred embodiment of the present invention;

[0022] Figure 5 This is an isometric side view of the right-folding cover assembly in a preferred embodiment of the present invention;

[0023] Figure 6 This is an isometric side view of the folded bottom component in a preferred embodiment of the present invention;

[0024] Figure 7 This is an isometric side view of the pusher assembly in a preferred embodiment of the present invention.

[0025] Explanation of reference numerals in the accompanying drawings: Box support assembly 10, box support base 101, box support drive cylinder 102, box support plate 103, left folding cover assembly 20, first support frame 201, first power source 202, first push plate 203, second power source 204, internal pressure component 205, first rubber wheel 206, second rubber wheel 207, rubber wheel mounting bracket 208, first rotating shaft 209, right folding cover assembly 30, second support frame 301, folding cover drive cylinder 302, second push plate 303, bottom folding assembly 40, third support frame 401, bottom folding drive cylinder 402, linear guide rail 403, slider 404, moving bracket 405, rocker arm 406, limit plate 407, connecting rod 408, bottom folding push plate 409, box push assembly 50, linear cylinder 501, L-shaped push rod 502. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention. Example

[0027] Reference Figure 1 , 2 As shown, the carton folding assembly of this utility model includes: a first support frame 201; a first power source 202, which is hinged to the first support frame 201; a first push plate 203, one end of which is hinged to the first support frame 201, and the middle position of the first push plate 203 is connected to the output end of the first power source 202. The first power source 202 drives the first push plate 203 to rotate around the hinge point to realize the folding of the carton bottom cover upward and inward into the carton; a second power source 204, which is fixedly installed on the first support frame 201; and an inner pressure member 205, which is connected to the output end of the second power source 204. The second power source 204 drives the inner pressure member 205 to contact the carton bottom cover before the first push plate 203 and push the carton bottom cover inward into the carton. The first power source 202 and the second power source 204 are preferably cylinders.

[0028] In the above structure, the inner pressure component 205 includes a first rubber wheel 206, a second rubber wheel 207, and a rubber wheel mounting bracket 208. The rubber wheel mounting bracket 208 is connected to the output end of the second power source 204. Both the first rubber wheel 206 and the second rubber wheel 207 are mounted on the rubber wheel mounting bracket 208 and are in contact with the bottom cover of the carton. The second rubber wheel 207 is located below the first rubber wheel 206 and is located on the side of the first rubber wheel 206 closest to the bottom cover of the carton. The line connecting the center point of the first rubber wheel 206 and the center point of the second rubber wheel 207 is inclined, ensuring that during the process of the second power source 204 driving the first rubber wheel 206 and the second rubber wheel 207 to move towards the bottom cover of the carton, the second rubber wheel 207 first contacts the bottom cover of the carton, and after the bottom cover of the carton folds inward, it gradually contacts the first rubber wheel 206, thus forming a gradual transitional pushing effect.

[0029] The added second power source 204 is an auxiliary cylinder. The first power source 202 and the second power source 204 extend together. The speed of the second power source 204 is greater than the speed of the first power source 202. Therefore, the first rubber wheel 206 and the second rubber wheel 207 touch the edge of the carton before the first push plate 203, so that the edge of the carton is not easily damaged when the first push plate 203 touches the carton.

[0030] In the above structure, the first support frame 201 is provided with a first rotating shaft 209, and one end of the first push plate 203 is hinged to the first support frame 201 through the first rotating shaft 209. During the extension or retraction of the telescopic rod of the first power source 202, the first push plate 203 is driven to rotate around the first rotating shaft 209. During the rotation of the first push plate 203, it contacts the bottom cover of the carton, thereby folding the bottom cover of the carton inward.

[0031] In the above structure, the first push plate 203 is a rectangular flat plate, and the two corners of the first push plate 203 near the bottom cover of the carton are rounded. By using rounded corners, damage to the carton from sharp corners can be reduced during the contact between the first push plate 203 and the carton. Example

[0032] Reference Figure 3As shown, the carton folding and sealing device of this utility model includes: a carton support assembly 10, a left folding lid assembly 20, a right folding lid assembly 30, a bottom folding assembly 40, and a carton pusher assembly 50. The carton support assembly 10 is used to open two opposite bottom lids of the carton to the outside of the carton. The left folding lid assembly 20 and the right folding lid assembly 30 are arranged opposite to each other and are used to fold one pair of bottom lids of the carton to the inside of the carton. The bottom folding assembly 40 is used to fold the other pair of bottom lids of the carton to the inside of the carton. The carton pusher assembly 50 is used to push the folded carton to the next station. The left folding lid assembly 20 is the carton folding lid assembly. The carton has four bottom flaps. To avoid interference between adjacent bottom flaps, the box support assembly 10 first opens a pair of split bottom flaps outwards, separating them from the other pair and preventing interference. Then, the left folding flap assembly 20 and the right folding flap assembly 30 fold one pair of bottom flaps inwards, pushing them into the carton. The bottom folding assembly 40 then folds the remaining two bottom flaps inwards simultaneously, completing the folding of all four bottom flaps. Finally, the box pusher assembly 50 pushes the folded carton into the next workstation.

[0033] Reference Figure 4 As shown, the carton support assembly 10 includes a carton support base 101, a carton support driving cylinder 102, and two symmetrically arranged carton support plates 103. The carton support driving cylinder 102 is fixedly installed on the carton support base 101. The two symmetrically arranged carton support plates 103 are connected to the output end of the carton support driving cylinder 102. Inclined portions 104 are provided on the mutually distant ends of the carton support plates 103. The inclined portions 104 of the two symmetrically arranged carton support plates 103 are arranged in a figure-eight shape. The carton support driving cylinder 102 drives the inclined portions 104 to open the bottom cover of the carton to the outside of the carton. The two inclined sections 104 arranged in an "eight" shape have their smaller ends closer to the bottom opening of the carton. When the supporting cylinder 102 drives the supporting plate 103 to move towards the carton, the smaller inclined section 104 first enters the bottom of the carton. Then, the inclined outer wall of the inclined section 104 contacts the bottom cover of the carton. As the supporting cylinder 102 drives the supporting plate 103 to gradually move upward, the distance between the outer walls of the two inclined sections 104 increases, thereby pushing the bottom cover of the carton, which is in contact with the inclined outer wall of the inclined section 104, outward from the carton.

[0034] Reference Figure 5As shown, the right-folding flap assembly 30 includes a second support frame 301, a flap-folding drive cylinder 302, and a second push plate 303. The flap-folding drive cylinder 302 is hinged to the second support frame 301. One end of the second push plate 303 is hinged to the second support frame 301, and the middle position of the second push plate 303 is hinged to the output end of the flap-folding drive cylinder 302. The flap-folding drive cylinder 302 drives the second push plate 303 to fold the bottom flap of the carton upwards and inwards. The surface of the second push plate 303 that contacts the carton is set as a plane, and the corners of the second push plate 303 that contact the carton are set as rounded corners.

[0035] Reference Figure 6 As shown, the bottom-folding assembly 40 includes a third support frame 401, a bottom-folding drive cylinder 402, a linear guide rail 403, a slider 404, a movable bracket 405, and two symmetrically arranged rocker arms 406. The linear guide rail 403 is fixedly mounted on the third support frame 401. The output end of the bottom-folding drive cylinder 402 is connected to the movable bracket 405. The slider 404 is fixedly connected to the movable bracket 405. The slider 404 is mounted on the linear guide rail 403 and can slide along the linear guide rail 403. The rocker arms 406 rotate. The third support frame 401 is provided with two symmetrically arranged limiting plates 407, which are mounted on the movable bracket 405. The two symmetrically arranged rocker arms 406 and the two symmetrically arranged limiting plates 407 are arranged one-to-one. One end of the rocker arm 406 is connected to a connecting rod 408, and the other end of the rocker arm 406 is connected to a bottom folding push plate 409. When the bottom folding drive cylinder 402 drives the movable bracket 405 to move, the connecting rod 408 contacts the limiting plate 407 so that the rocker arm 406 drives the bottom folding push plate 409 to rotate and fold the bottom cover of the carton. The rocker arm 406 and the connecting rod 408 are analogous to bicycle pedals. The bottom-folding drive cylinder 402 pushes the moving bracket 405 to move towards the limiting plate 407. When the connecting rod 408 contacts the limiting plate 407, as the bottom-folding drive cylinder 402 pushes the moving bracket 405 to continue moving upward, the limiting plate 407 applies reverse pressure to the connecting rod 408, thereby causing the connecting rod 408 to drive the rocker arm 406 to rotate. The bottom-folding push plate 409 is a flat plate. As the rocker arm 406 rotates, it contacts the bottom cover of the carton, thereby folding the bottom cover of the carton inward. Since there are two symmetrically arranged rocker arms 406, the two opposite bottom plates of the carton are folded simultaneously.

[0036] Reference Figure 7 As shown, the carton pushing assembly 50 includes a linear cylinder 501 and an L-shaped push rod 502. One end of the L-shaped push rod 502 is connected to the mover of the linear cylinder 501. The linear cylinder 501 drives the L-shaped push rod 502 to push the carton. The linear cylinder 501 drives the L-shaped push rod 502 to move linearly, pushing the folded carton to the next workstation.

[0037] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A carton lid folding assembly characterised in that, include: First support frame; The first power source is hinged to the first support frame; The first push plate has one end hinged to the first support frame, and the middle position of the first push plate is connected to the output end of the first power source. The first power source drives the first push plate to rotate around the hinge point to realize the bottom cover of the carton folding upward and inward into the carton. The second power source is fixedly installed on the first support frame; The inner pressure component is connected to the output end of the second power source. The second power source drives the inner pressure component to contact the bottom cover of the carton before the first push plate and push the bottom cover of the carton into the carton.

2. The carton lid assembly of claim 1, wherein: The internal pressure component includes a first rubber wheel, a second rubber wheel, and a rubber wheel mounting bracket. The rubber wheel mounting bracket is connected to the output end of a second power source. Both the first and second rubber wheels are mounted on the rubber wheel mounting bracket, and the first and second rubber wheels are in contact with the bottom cover of the carton.

3. The carton lid fold assembly of claim 2, wherein: The second rubber roller is located below the first rubber roller, and the second rubber roller is located on the side of the first rubber roller near the bottom cover of the carton.

4. The carton lid fold assembly of claim 1, wherein: The first support frame is provided with a first rotating shaft, and one end of the first push plate is hinged to the first support frame through the first rotating shaft.

5. The carton lid fold assembly of claim 1, wherein: The first push plate is a rectangular flat plate, and the two corners of the first push plate near the bottom cover of the carton are rounded.

6. A carton lid sealing apparatus comprising: The carton support assembly, the left folding flap assembly, the right folding flap assembly, the bottom folding assembly, and the carton pusher assembly, wherein the carton support assembly is used to open two opposite bottom flaps of the carton to the outside of the carton, the left folding flap assembly and the right folding flap assembly are arranged opposite to each other and are used to fold one pair of bottom flaps of the carton to the inside of the carton, the bottom folding assembly is used to fold the other pair of bottom flaps of the carton to the inside of the carton, and the carton pusher assembly is used to push the folded carton to the next workstation, characterized in that: the left folding flap assembly is the carton folding flap assembly as described in any one of claims 1-5.

7. The carton lid sealing apparatus of claim 6, wherein: The carton support assembly includes a carton support base, a carton support drive cylinder, and two symmetrically arranged carton support plates. The carton support drive cylinder is fixedly installed on the carton support base. The two symmetrically arranged carton support plates are connected to the output end of the carton support drive cylinder. The ends of the carton support plates that are far apart from each other are provided with inclined portions. The inclined portions of the two symmetrically arranged carton support plates are arranged in a figure-eight shape. The carton support drive cylinder drives the inclined portions to open the bottom cover of the carton to the outside.

8. The carton lid sealing apparatus of claim 7, wherein: The right-folding cover assembly includes a second support frame, a folding cover driving cylinder, and a second push plate. The folding cover driving cylinder is hinged to the second support frame. One end of the second push plate is hinged to the second support frame, and the middle position of the second push plate is hinged to the output end of the folding cover driving cylinder. The folding cover driving cylinder drives the second push plate to fold the bottom cover of the carton upward and inward.

9. The carton lid sealing apparatus of claim 8, wherein: The bottom-folding assembly includes a third support frame, a bottom-folding drive cylinder, a linear guide rail, a slider, a movable bracket, and two symmetrically arranged rockers. The linear guide rail is fixedly mounted on the third support frame. The output end of the bottom-folding drive cylinder is connected to the movable bracket. The slider is fixedly connected to the movable bracket and is mounted on the linear guide rail, allowing it to slide along the rail. The rockers are rotatably mounted on the movable bracket. The third support frame has two symmetrically arranged limiting plates. The two symmetrically arranged rockers and the two symmetrically arranged limiting plates are arranged in a one-to-one correspondence. One end of each rocker is connected to a connecting rod, and the other end is connected to a bottom-folding push plate. When the bottom-folding drive cylinder drives the movable bracket to move, the connecting rod contacts the limiting plate to allow the rocker to rotate and fold the bottom-folding push plate, thus folding the bottom cover of the carton.

10. The carton lid sealing apparatus of claim 9, wherein: The carton pushing assembly includes a linear cylinder and an L-shaped push rod. One end of the L-shaped push rod is connected to the mover of the linear cylinder, and the linear cylinder drives the L-shaped push rod to push the carton.

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