Positioning cutting mechanism and packaging box cutting machine

Abstract

The utility model provides a positioning cutting mechanism which comprises a stud, a rotating shaft coaxially and fixedly connected with the two ends of the stud, a support rotationally connected with the rotating shaft and a driving assembly arranged in the support and in transmission connection with the rotating shaft. Each adjusting and fixing assembly is connected with an annular cutter, and the adjusting and fixing assemblies located at the two ends are further connected with positioning and guiding assemblies located on the two sides of the annular cutters. The plastic packaging box cutting device has better applicability, and good cutting quality can be guaranteed in the cutting process of plastic packaging boxes of different sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic box cutting structures, in particular to a positioning cutting mechanism and a packaging box cutting machine. Background Art

[0002] In the processing and production of plastic packaging boxes, mold stamping is often used to produce multiple packaging boxes at one time. These packaging boxes are neatly arranged and connected together to form a plastic packaging box group. Therefore, the plastic packaging box group needs to be cut;

[0003] Existing cutting devices generally have a fixed annular cutter, which is driven by a driving mechanism to rotate to achieve cutting work. However, when producing packaging boxes of different sizes, the position of the annular cutter cannot be adjusted accordingly, and other cutting devices are required to cut plastic packaging boxes of different models and sizes. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a positioning cutting mechanism and a packaging box cutting machine, which can be adjusted according to the size of the plastic box and have better applicability.

[0005] According to an embodiment of the utility model, a positioning and cutting mechanism includes a stud, a rotating shaft coaxially fixedly connected to the two ends of the stud, a support rotatably connected to the rotating shaft, and a driving component arranged in the support and transmission-connected to the rotating shaft. The stud is provided with a plurality of adjusting and fixing components, each of which is connected to an annular cutter, and the adjusting and fixing components located at both ends are also connected to positioning guide components located on both sides of the annular cutter.

[0006] Preferably, the stud is provided with at least two limiting slide grooves parallel to its axis, the adjustment and fixing assembly includes a slide seat movably mounted on the stud, an adjusting member for adjusting the position of the slide seat, and a fixing member for fixing the position of the slide seat, the inner diameter of the slide seat is larger than the stud, and a limiting slider slidingly matched with the limiting slide groove is fixedly connected to its inner wall, and the positioning guide assembly is connected to the two slide seats located at both ends.

[0007] Further preferably, the adjusting member comprises a ring-shaped rotating seat fixedly connected to the sliding seat, a driving sleeve rotatably connected to the rotating seat and sleeved on the stud, and an internal thread engaging with the stud is provided on the inner side of the driving sleeve.

[0008] Further preferably, the inner diameter of the rotating seat is larger than that of the sliding seat, the inner diameter of the driving sleeve is smaller than that of the rotating seat, and a side wall surface of the driving sleeve close to the sliding seat is provided with pin holes evenly distributed along the circumferential direction, and the sliding seat is provided with at least one positioning through hole arranged corresponding to the pin hole, and the fixing part includes a movable pin movably arranged in the positioning through hole.

[0009] Further preferably, the movable pin is connected to the positioning through hole via a first elastic member, two positioning through holes are provided, and one end of the two movable pins away from the driving sleeve is connected to an operating ring.

[0010] Further preferably, the positioning and guiding assembly includes a bracket fixedly connected to the sliding seat, a positioning plate arranged on the inner side of the bracket, and a guide plate fixedly connected to the positioning plate, wherein a first guide rod is fixedly connected to the guide plate, which passes through the bracket and slides with the bracket, and the positioning plate is also connected to the bracket through a second elastic member.

[0011] Still further preferably, a second guide rod is connected to a side of the bracket away from the guide plate, and the second guide rod passes through the support and is slidably engaged therewith.

[0012] According to an embodiment of the utility model, a packaging box cutting machine is also provided, comprising the above-mentioned positioning and cutting mechanism.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] A plurality of position-changeable adjustment and fixing components are provided, each of which is provided with an annular cutter. Meanwhile, the adjustment and fixing components at both ends are also connected with guide and positioning components. When the position of the annular cutter is changed by adjusting the fixing components, the guide and positioning components can be adjusted synchronously, and can adapt to the cutting of plastic packaging boxes of different sizes. Meanwhile, after the adjustment is completed, the guide and positioning components can still ensure the stability of the plastic packaging box during the cutting process, thereby improving the cutting quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a schematic diagram of the structure of a positioning and cutting mechanism.

[0016] Figure 2 For this utility model Figure 1 The enlarged structural intention of the part A in the middle.

[0017] Figure 3 The utility model is a schematic diagram of the cross-sectional structure of the cooperation between the slide seat, the adjusting member and the fixing member in a positioning and cutting mechanism.

[0018] In the above drawings: 1. stud; 101. limiting slide groove; 2. rotating shaft; 3. support; 4. adjusting and fixing assembly; 410. slide seat; 411. limiting slide block; 412. positioning through hole; 420. adjusting member; 421. rotating seat; 422. driving sleeve; 423. pin hole; 430. fixing member; 431. movable pin; 432. first elastic member; 433. operating ring; 5. annular cutter; 6. positioning guide assembly; 601. bracket; 602. positioning plate; 603. guide plate; 604. first guide rod; 605. second elastic member; 606. second guide rod. DETAILED DESCRIPTION

[0019] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Embodiment 1:

[0021] like Figure 1 As shown, the utility model provides a positioning cutting mechanism, comprising a stud 1, a rotating shaft 2 coaxially fixedly connected to both ends of the stud 1, a support 3 rotatably connected to the rotating shaft 2, and a driving component arranged in the support 3 and drivingly connected to the rotating shaft 2, wherein the diameter of the rotating shaft 2 is smaller than the diameter of the stud 1, and the stud 1 is provided with a plurality of adjusting and fixing components 4, each of which is connected to an annular cutter 5, which is coaxially arranged with the rotating shaft 2, and the adjusting and fixing components 4 at both ends are also connected to positioning guide components 6 located on both sides of the annular cutter 5;

[0022] The position of each annular cutter 5 can be changed by adjusting the fixing component 4, so that it can be adjusted according to the size and shape of the plastic box product. When the position of the annular cutter 5 is adjusted by adjusting the fixing component 4, the positioning guide components 6 on both sides will be adjusted synchronously, so that the plastic box product can be transported along a precise route during the cutting process, thereby improving the cutting quality.

[0023] Specifically, the stud 1 is provided with at least two limiting slide grooves 101 parallel to its axis. In the present embodiment, two limiting slide grooves 101 are provided. The two limiting slide grooves 101 are located at opposite positions and on the same diameter. The adjusting and fixing assembly 4 comprises a slide seat 410 movably sleeved on the stud 1, an adjusting member 420 for adjusting the position of the slide seat 410, and a fixing member 430 for fixing the position of the slide seat 410. The inner diameter of the slide seat 410 is larger than that of the stud 1 and a limiting slider 411 slidably matched with the limiting slide groove 101 is fixedly connected to the inner wall thereof. The two slide seats 410 located at both ends are connected with the positioning guide assembly 6.

[0024] Under the condition that the limiting sliding block 411 contacts the bottom of the limiting sliding groove 101, the inner wall of the sliding seat 410 will not contact the surface of the stud 1, and the sliding seat 410 and the stud 1 will not rotate with each other;

[0025] In order to be able to adjust the position of the slide 410 more continuously, specifically, as Figure 3 As shown, the adjusting member 420 includes a ring-shaped rotating seat 421 fixedly connected to the sliding seat 410, a driving sleeve 422 rotatably connected to the rotating seat 421 and sleeved on the stud 1, and an internal thread engaged with the stud 1 is provided on the inner side of the driving sleeve 422;

[0026] By rotating the drive sleeve 422, under the effect of thread engagement, the drive sleeve 422 can be displaced along the circumference of the stud 1, and drive the slide 410 to change position, so as to adjust the relative positions between the annular cutters 5;

[0027] In order to stably fix the position of the slide 410, specifically, Figure 3 As shown, the inner diameter of the rotating seat 421 is larger than that of the sliding seat 410, and the inner diameter of the driving sleeve 422 is smaller than that of the rotating seat 421. The wall surface of the driving sleeve 422 close to the sliding seat 410 is provided with pin holes 423 evenly distributed along the circumferential direction. The sliding seat 410 is provided with at least one positioning through hole 412 corresponding to the pin hole 423, and the fixing member 430 includes a movable pin 431 movably arranged in the positioning through hole 412.

[0028] In order to facilitate the timely resetting of the movable pin 431 and improve the stability of its cooperation with the pin hole 423, in a further embodiment, the movable pin 431 is connected to the positioning through hole 412 through a first elastic member 432. In this embodiment, the first elastic member 432 is a rigid spring, and the positioning through hole 412 includes a coaxially connected guide hole and a movable hole, the movable hole has a larger diameter and is located on the side close to the driving sleeve 422, and the movable pin 431 includes a coaxially connected guide rod and a pin rod, the guide rod is located in the guide hole, the pin rod has a larger diameter and is located in the movable hole and is connected to the bottom of the movable hole through a rigid spring. The positioning through holes 412 are provided with two, and the ends of the two movable pins 431 away from the driving sleeve 422 are connected with an operating ring 433;

[0029] In order to improve the stability of the plastic box during cutting, specifically, Figure 2As shown, the positioning guide assembly 6 includes a bracket 601 fixedly connected to the slide seat 410, a positioning plate 602 arranged on the inner side of the bracket 601, and a guide plate 603 fixedly connected to the positioning plate 602, and a first guide rod 604 that penetrates the bracket 601 and slidably cooperates with the first guide rod 604 is fixedly connected to the guide plate 603, and the positioning plate 602 is also connected to the bracket 601 through a second elastic member 605, and the second elastic member 605 is a rigid spring;

[0030] Under the elastic force of the rigid spring, the positioning plate 602 can exert a certain force on the side of the plastic box, and the forces on both sides are equal to ensure the stability of the plastic box;

[0031] In order to improve the stability of the guide plate 603 during adjustment, in a further embodiment, a second guide rod 606 is connected to a side of the bracket 601 away from the guide plate 603, and the second guide rod 606 passes through the support 3 and slidably cooperates therewith.

[0032] Embodiment 2:

[0033] A packaging box cutting machine comprises a positioning and cutting mechanism and a conveying device as described in the first embodiment, wherein two supports 3 in the positioning and cutting mechanism are fixedly arranged above the conveying device.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A positioning and cutting mechanism, characterized in that: The invention comprises a stud (1), a rotating shaft (2) coaxially fixedly connected to the two ends of the stud (1), a support (3) rotatably connected to the rotating shaft (2), and a driving component arranged in the support (3) and drivingly connected to the rotating shaft (2); the stud (1) is provided with a plurality of adjusting and fixing components (4), each of the adjusting and fixing components (4) is connected to an annular cutter (5), and the adjusting and fixing components (4) located at the two ends are also connected to positioning guide components (6) located on both sides of the annular cutter (5).

2. A positioning and cutting mechanism according to claim 1, characterized in that: The stud (1) is provided with at least two limiting slide grooves (101) parallel to its axis, the adjusting and fixing assembly (4) comprises a slide seat (410) movably mounted on the stud (1), an adjusting member (420) for adjusting the position of the slide seat (410), and a fixing member (430) for fixing the position of the slide seat (410), the inner diameter of the slide seat (410) is larger than the stud (1) and a limiting slider (411) slidably matched with the limiting slide groove (101) is fixedly connected to the inner wall thereof, and the two slide seats (410) located at the two ends are connected to the positioning guide assembly (6).

3. A positioning and cutting mechanism according to claim 2, characterized in that: The adjusting member (420) comprises a ring-shaped rotating seat (421) fixedly connected to the sliding seat (410), and a driving sleeve (422) rotatably connected to the rotating seat (421) and sleeved on the stud (1); the inner side of the driving sleeve (422) is provided with an internal thread that meshes with the stud (1).

4. A positioning and cutting mechanism according to claim 3, characterized in that: The inner diameter of the rotating seat (421) is larger than that of the sliding seat (410), and the inner diameter of the driving sleeve (422) is smaller than that of the rotating seat (421). A side wall of the driving sleeve (422) close to the sliding seat (410) is provided with pin holes (423) evenly distributed along the circumferential direction. The sliding seat (410) is provided with at least one positioning through hole (412) corresponding to the pin hole (423), and the fixing member (430) includes a movable pin (431) movably arranged in the positioning through hole (412).

5. A positioning and cutting mechanism according to claim 4, characterized in that: The movable pin (431) is connected to the positioning through hole (412) via a first elastic member (432), two positioning through holes (412) are provided, and one end of the two movable pins (431) away from the driving sleeve (422) is connected to an operating ring (433).

6. A positioning and cutting mechanism according to any one of claims 2 to 5, characterized in that: The positioning guide assembly (6) includes a bracket (601) fixedly connected to the slide seat (410), a positioning plate (602) arranged on the inner side of the bracket (601), and a guide plate (603) fixedly connected to the positioning plate (602), wherein the guide plate (603) is fixedly connected to a first guide rod (604) that passes through the bracket (601) and slidably cooperates with the bracket (601), and the positioning plate (602) is also connected to the bracket (601) via a second elastic member (605).

7. A positioning and cutting mechanism according to claim 6, characterized in that: A second guide rod (606) is connected to a side of the bracket (601) away from the guide plate (603), and the second guide rod (606) passes through the support (3) and is slidably engaged therewith.

8. A packaging box cutting machine, characterized in that: It includes a positioning and cutting mechanism as described in claim 7.

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