Paper box no die corner fast forming device

Abstract

This utility model discloses a moldless corner-attaching rapid forming device for cardboard boxes, including a first extension rod, a second extension rod, and an adjusting sleeve with upper and lower openings. The first extension rod is connected to a lifting mechanism, and its front end is connected to the upper end of a push rod. The sleeve is located in front of the lifting mechanism and is fitted onto the outside of the push rod from its lower end upwards. The lifting mechanism drives the push rod through the first extension rod. The rear end of the second extension rod is connected to a bracket. The adjusting component at the front end of the second extension rod is connected to the sleeve. This allows for further fine-tuning and fixing of the installation angle between the sleeve and the second extension rod. Thus, even if there are processing errors and assembly errors in the adjusting component, the push rod, the first extension rod, and the second extension rod, the angle between the push rod and the second extension rod can be adjusted to ensure that the angle between them reaches a predetermined angle, thereby guaranteeing the quality of the rapid corner-attaching forming.

Description

Technical Field

[0001] This utility model relates to the technical field of moldless corner-attaching rapid prototyping device for paper boxes, and in particular to a moldless corner-attaching rapid prototyping device for paper boxes. Background Technology

[0002] With social development and improved living standards, the use of packaging boxes such as wine boxes, shoe boxes, and gift boxes has increased significantly. This has led to a transformation in the production of paper boxes from manual to automated mechanized manufacturing, greatly improving production efficiency and reducing production costs.

[0003] A corner-sealing machine is a piece of equipment used in the packaging industry. Its main function is to seal the corners of materials such as cardboard, making the packaging more secure and aesthetically pleasing. For example:

[0004] Chinese invention patent CN111907137A discloses a cardboard box corner-attaching machine, which includes a pusher mechanism, a mold, four corner-attaching mechanisms, a longitudinal travel mechanism for adjusting the movement of the corner-attaching mechanisms, and a transverse travel mechanism. The pusher mechanism and mold deliver the cardboard box between the four corner-attaching mechanisms to perform corner-attaching operations on the four corners of the cardboard box. Its drawback is:

[0005] When corner-attaching operations are required for different cardboard boxes, the four corner-attaching mechanisms can adjust the spacing between each other through the horizontal and vertical travel mechanisms to adapt to the corner-attaching requirements of cardboard boxes of different sizes. However, the mold cannot adjust its specifications on its own, so the mold needs to be replaced, which is very inconvenient and increases costs.

[0006] Later, corner-attaching mechanisms that do not require mold replacement emerged, such as the Chinese invention patent CN119305253A, published on January 14, 2025: A moldless following adjustment mechanism for rapid prototyping of corner attaching for gift boxes. The disclosed push rod is mounted on the mounting frame through a lifting mechanism. Since the push rod is suspended, it will swing when it is hit by an external corner-attaching mechanism during operation, which will affect the product quality. In addition, the angle between the push rod and the mounting frame is fixed. Due to processing errors and assembly errors, the angle between the push rod and the mounting frame often fails to reach the predetermined angle, which in turn affects the corner-attaching quality.

[0007] Therefore, in this utility model patent application, the applicant has carefully researched a moldless corner-attaching rapid prototyping device for paper boxes to solve the above problems. Utility Model Content

[0008] In view of this, the present invention addresses the deficiencies of the existing technology, and its main objective is to provide a moldless corner forming device for paper boxes. This device allows for further fine-tuning and fixing of the installation angle between the sleeve and the second extension rod. Thus, even if there are processing errors and assembly errors in the adjusting component, push rod, first extension rod, and second extension rod, the angle between the push rod and the second extension rod can be adjusted to ensure that the angle between them reaches a predetermined angle, thereby guaranteeing the quality of the corner forming process.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A moldless device for rapid prototyping of cardboard box corner attaching includes a push rod vertically arranged above an external corner attaching mechanism and a bracket fixed to the external corner attaching mechanism. The push rod is lifted and lowered on the bracket via a lifting mechanism.

[0011] It also includes a first extension rod, a second extension rod, and a sleeve with openings at the top and bottom, all located above the external corner-adhesive mechanism.

[0012] Both the first extension rod and the second extension rod extend in the front-to-back direction. The rear end of the first extension rod is connected to the lifting mechanism, and the front end of the first extension rod is connected to the upper end of the push rod. The sleeve is located in front of the lifting mechanism and is fitted onto the outside of the push rod from the lower end upwards. The lifting mechanism drives the push rod to move up and down relative to the sleeve through the first extension rod. The rear end of the second extension rod is connected to the bracket, and the front end of the second extension rod is connected to the sleeve.

[0013] As a preferred embodiment, the front end of the second extension rod is fixedly connected to the sleeve via a first locking member.

[0014] As a preferred embodiment, it also includes an error adjustment mechanism, which includes an adjustment member, one end of which is rotatably connected to the front end of the second extension rod, and the other end of which is rotatably connected to the sleeve.

[0015] The adjusting member is provided with a first locking member for locking or releasing the adjusting member and the second extension rod, and a second locking member for locking or releasing the adjusting member and the sleeve.

[0016] As a preferred embodiment, the lifting mechanism includes a slide rail extending in the vertical direction and a first slider slidably mounted on the slide rail. The rear end of the first extension rod is connected to the first slider, and the first extension rod rises and falls with the rise and fall of the first slider.

[0017] As a preferred embodiment, the lifting mechanism further includes a motor, a screw, a bearing plate, and a second slider;

[0018] The output shaft of the motor drives one end of the connecting screw, and the other end of the screw is rotatably connected to the bearing plate. A movable screw ring is provided inside the second slider, and the movable screw ring is screwed to the screw. The first slider is connected to the second sliding block to rise and fall with the second slider.

[0019] As a preferred embodiment, the screw and the slide rail are located on different sides of the bracket.

[0020] As a preferred embodiment, both the motor and the bearing plate are mounted on a bracket.

[0021] As a preferred embodiment, the sleeve has a protrusion on the end face facing the second extension rod, and the protrusion is connected to the other end of the adjusting member through a second locking member.

[0022] As a preferred embodiment, the sleeve is provided with a limiting block to ensure that the cardboard forming plate is limited to the processing position.

[0023] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution, it mainly achieves the limitation of the push rod during the operation by the cooperation of the second extension rod and the sleeve, so as to avoid the swing when it is hit by the external corner-attaching mechanism, and ensure the stability and reliability of the push rod during use.

[0024] Secondly, through the error adjustment mechanism, the installation angle between the sleeve and the second extension rod can be further finely adjusted and fixed. Thus, even if there are processing errors and assembly errors in the adjusting parts, push rod, first extension rod and second extension rod, the angle between the push rod and the second extension rod can be adjusted to ensure that the angle between the push rod and the second extension rod can reach the predetermined angle to ensure the quality of corner fast forming.

[0025] Furthermore, the modular design of the entire device makes it easy to install and maintain, thus reducing after-sales costs.

[0026] In addition, it integrates a limiting block to ensure that the cardboard forming plate is limited to the processing position, so that the cardboard forming plate does not need to have its own limiting function, thus enriching the functionality of this device.

[0027] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0028] Figure 1 This is a three-dimensional assembly structure diagram of a preferred embodiment of the present invention (showing the external corner-attaching mechanism);

[0029] Figure 2This is a three-dimensional assembly structure diagram of another preferred embodiment of the present invention (showing the external corner-attaching mechanism).

[0030] Figure 3 This is a first exploded structural diagram of a preferred embodiment of the present invention (showing the external corner-attaching mechanism);

[0031] Figure 4 This is a second exploded structural diagram of a preferred embodiment of the present invention;

[0032] Figure 5 This is a three-dimensional assembly structure diagram of another preferred embodiment of the present invention (showing the external corner-attaching mechanism).

[0033] Explanation of reference numerals in the attached diagram:

[0034] 10. External corner-mounting mechanism

[0035] 11. Base plate 12. Corner-attaching mechanism body

[0036] 21. Push rod 22. Bracket

[0037] 221. Vertical board

[0038] 23. First extension rod 24. Second extension rod

[0039] 25. Sleeve 251. Protrusion

[0040] 252, Second keyhole; 253, Fourth keyhole

[0041] 254. Limiting block

[0042] 30. Lifting mechanism

[0043] 31. Motor 311. Motor mounting bracket

[0044] 32. Screw

[0045] 33. Bearing plate; 34. Second slider

[0046] 35. Slide rail 36. First slider

[0047] 37. Moving screw ring; 38. Adjusting component

[0048] 381, First keyhole; 382, ​​Third keyhole

[0049] 39. Protective Case

[0050] 41. First locking component 42. Second locking component

[0051] 251a, protrusion 41a, first locking element. Detailed Implementation

[0052] Please refer to Figures 1 to 5 As shown, it illustrates the specific structure of a preferred embodiment of the present invention. A rapid prototyping device for moldless corner attaching of a cardboard box includes a push rod 21 located above the external corner attaching mechanism 10 and vertically arranged, a bracket 22 fixed on the external corner attaching mechanism 10, a first extension rod 23, a second extension rod 24, an adjusting member 38, and a sleeve 25 with upper and lower openings, all located above the external corner attaching mechanism 10.

[0053] The push rod 21 is mounted on the bracket 22 via a lifting mechanism 30. In this embodiment, the lifting mechanism 30 includes a protective shell 39, a motor 31, a screw 32, a bearing plate 33, a second slider 34, a slide rail 35 extending in the vertical direction, and a first slider 36 slidably mounted on the slide rail 35.

[0054] The first extension rod 23 extends in the front-to-back direction. The rear end of the first extension rod 23 is connected to the lifting mechanism 30. Preferably, the rear end of the first extension rod 23 is connected to the first slider 36, and the first extension rod 23 rises and falls with the rise and fall of the first slider 36.

[0055] The output shaft of the motor 31 drives one end of the connecting screw 32, and the other end of the screw 32 is rotatably connected to the bearing plate 33. Both the motor 31 and the bearing plate 33 are mounted on the bracket 22. The screw 32 and the slide rail 35 are located on different sides of the bracket 22. In this embodiment, the screw 32 is located beside the slide rail 35.

[0056] The second slider 34 is provided with a movable screw ring 37, which is screwed to the screw rod 32. The first slider 36 is connected to the second sliding block to rise and fall with the second slider 34.

[0057] The front end of the first extension rod 23 is connected to the upper end of the push rod 21. The sleeve 25 is located in front of the lifting mechanism 10 and is sleeved on the outside of the push rod 21 from the lower end of the push rod 21. The lifting mechanism 10 drives the push rod 21 to move up and down relative to the sleeve 25 through the first extension rod 23.

[0058] The second extension rod 24 extends in the front-to-back direction. One end of the second extension rod 24 is connected to the bracket 22, and the rear end of the second extension rod 24 is connected to the bracket 22. The front end of the second extension rod 24 is connected to the sleeve 25.

[0059] In this embodiment, an error adjustment mechanism is also included, which includes an adjustment member 38. One end of the adjustment member 38 is rotatably connected to the front end of the second extension rod 24, and the other end of the adjustment member 38 is rotatably connected to the sleeve 25.

[0060] The adjusting member 38 is provided with a first locking member 41 for locking or releasing the adjusting member 38 and the second extension rod 24, and a second locking member 42 for locking or releasing the adjusting member 38 and the sleeve 25.

[0061] In this embodiment, one end of the adjusting member 38 is provided with a third locking hole 382 for threaded engagement with the first locking member 41 in the vertical direction, and the upper end face of the front end of the second extension rod 24 is provided with a fourth locking hole 253 for threaded engagement with the first locking member 41. The first locking member 41 passes through the third locking hole 382 from top to bottom and is adapted to the fourth locking hole 253 to lock the adjusting member 38 and the second extension rod 24.

[0062] The other end of the adjusting member 38 is connected to the sleeve 25 via the second locking member 42. The sleeve 25 is provided with a limiting block 254 to ensure that the cardboard box forming plate is positioned at the processing position. A protrusion 251 protrudes from the end face of the sleeve 25 facing the second extension rod 24, and the protrusion 251 is connected to the other end of the adjusting member 38 via the second locking member 42. Preferably, the limiting block 254 is located on the inner surface of the protrusion 251.

[0063] In this embodiment, the other end of the adjusting member 38 is provided with a first locking hole 381 for threaded engagement with the second locking member 42 in the vertical direction, and the upper end face of the protrusion 251 is provided with a second locking hole 252 for threaded engagement with the second locking member 42. The second locking member 42 passes through the first locking hole 381 from top to bottom and is fitted into the second locking hole 252 to lock the sleeve 25 and the adjusting member 38.

[0064] In another embodiment, the front end of the second extension rod 24 is fixedly connected to the sleeve 25 via a first locking member 41a. Preferably, the sleeve 25 has a protrusion 251a protruding from the end face of the second extension rod 24, and the front end of the second extension rod 24 is fixedly connected to the protrusion 251a via the first locking member 41a.

[0065] In this embodiment, the bracket 22 includes a vertical plate 221, a second extension rod 24 and a screw 32 respectively disposed on opposite sides of the vertical plate 221, and the slide rail 35 is located between the second extension rod 24 and the screw 32.

[0066] The external corner-adhesive mechanism 10 includes a base plate 11 and a corner-adhesive mechanism body 12 disposed on the base plate 11. The corner-adhesive mechanism body 12 is a conventional corner-adhesive mechanism body 12, which will not be described in detail here. The upright plate 221 stands on the base plate 11. Preferably, the lower end face of the upright plate 221 is connected to the base plate 11. The motor 31 is connected to the upper end face of the upright plate 221 through a motor mounting bracket 311.

[0067] The key design feature of this utility model is that it mainly uses the cooperation of the second extension rod and the sleeve to limit the push rod during operation, so as to prevent it from swinging when it is hit by the external corner-attaching mechanism, and to ensure the stability and reliability of the push rod during use.

[0068] Secondly, through the error adjustment mechanism, the installation angle between the sleeve and the second extension rod can be further finely adjusted and fixed. Thus, even if there are processing errors and assembly errors in the adjusting parts, push rod, first extension rod and second extension rod, the angle between the push rod and the second extension rod can be adjusted to ensure that the angle between the push rod and the second extension rod can reach the predetermined angle to ensure the quality of corner fast forming.

[0069] Furthermore, the modular design of the entire device makes it easy to install and maintain, thus reducing after-sales costs.

[0070] In addition, it integrates a limiting block to ensure that the cardboard forming plate is limited to the processing position, so that the cardboard forming plate does not need to have its own limiting function, thus enriching the functionality of this device.

[0071] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A rapid prototyping device for moldless corner attaching of paper boxes, comprising a push rod vertically arranged above an external corner attaching mechanism and a bracket fixed to the external corner attaching mechanism, wherein the push rod is lifted and lowered on the bracket via a lifting mechanism, characterized in that: It also includes a first extension rod, a second extension rod, and a sleeve with openings at the top and bottom, all located above the external corner-adhesive mechanism; Both the first extension rod and the second extension rod extend in the front-to-back direction. The rear end of the first extension rod is connected to the lifting mechanism, and the front end of the first extension rod is connected to the upper end of the push rod. The sleeve is located in front of the lifting mechanism and is fitted onto the outside of the push rod from the lower end upwards. The lifting mechanism drives the push rod to move up and down relative to the sleeve through the first extension rod. The rear end of the second extension rod is connected to the bracket, and the front end of the second extension rod is connected to the sleeve.

2. The rapid prototyping device for cardboard boxes without molds and with corner attaching as described in claim 1, characterized in that: The front end of the second extension rod is fixedly connected to the sleeve via the first locking member.

3. The rapid prototyping device for cardboard boxes without molds and with corner attaching as described in claim 1, characterized in that: It also includes an error adjustment mechanism, which includes an adjustment component, one end of which is rotatably connected to the front end of the second extension rod, and the other end of which is rotatably connected to the sleeve. The adjusting member is provided with a first locking member for locking or releasing the adjusting member and the second extension rod, and a second locking member for locking or releasing the adjusting member and the sleeve.

4. The rapid prototyping device for cardboard boxes without molded corners according to claim 1, characterized in that: The lifting mechanism includes a slide rail extending in the vertical direction and a first slider slidably mounted on the slide rail. The rear end of the first extension rod is connected to the first slider, and the first extension rod rises and falls with the rise and fall of the first slider.

5. The rapid prototyping device for cardboard boxes without molded corners according to claim 4, characterized in that: The lifting mechanism also includes a motor, a screw, a bearing plate, and a second slider; The output shaft of the motor drives one end of the connecting screw, and the other end of the screw is rotatably connected to the bearing plate. A movable screw ring is provided inside the second slider, and the movable screw ring is screwed to the screw. The first slider is connected to the second sliding block to rise and fall with the second slider.

6. The rapid prototyping device for moldless corner bonding of paper boxes according to claim 5, characterized in that: The screw and slide rail are located on different sides of the bracket.

7. The rapid prototyping device for cardboard boxes without molded corners according to claim 5, characterized in that: Both the motor and the bearing plate are mounted on the bracket.

8. The rapid prototyping device for moldless corner bonding of paper boxes according to claim 3, characterized in that: The sleeve has a protrusion on the end face facing the second extension rod, and the protrusion is connected to the other end of the adjusting member through the second locking member.

9. The rapid prototyping device for moldless corner bonding of paper boxes according to claim 1, characterized in that: The sleeve is provided with a limiting block to ensure that the cardboard forming plate is limited to the processing position.

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