A positioning device for a carton magazine form

Abstract

This invention relates to the field of cigarette production equipment technology, and discloses a positioning device for a packaging machine box mold frame. The limiting mechanism of the packaging machine box mold frame includes a machine base and a first synchronous belt, the first synchronous belt being disposed on the machine base. The limiting mechanism includes a limiting component and a ring guide rail component. The linkage positioning mechanism includes a driving component, a first transmission component, a second transmission component, and a third transmission component that are driven sequentially. This invention, through the setting of the limiting component and the ring guide rail component, can reduce the offset and vibration of the box mold frame, solving the problem of deviation between the position of the cigarette pack and the standard position, resulting in poor side sealing quality. The linkage positioning mechanism pushes the box mold frame into a vertical position, ensuring accurate positioning of the box mold frame without deflection, facilitating smooth cigarette pack advancement without collision with the box mold frame causing damage to the cigarette pack, thus preventing machine downtime and affecting work efficiency.

Description

Technical Field

[0001] This invention relates to the field of cigarette production equipment technology, and in particular to a positioning device for a packaging machine box mold frame. Background Technology

[0002] The small-box transparent paper packaging machine wraps and heat-seales small cigarette packs with transparent paper, ensuring good packaging and moisture protection. At the machine's exit, the packaged cigarette packs are conveyed downstream, where the side seals are heat-sealed on a circular conveyor belt.

[0003] Currently, the ZB45 packaging machine commonly used in the tobacco industry produces numerous defects in the transparent paper used for small pack packaging, such as side seal wrinkles, bubbles, and dead creases, failing to meet the requirements for a smooth and flat finish. Previously, due to the lack of better solutions, the uneven side seal defects in the transparent paper produced by the ZB45 were widespread in the industry. Through technological breakthroughs, the applicant has added a third heat treatment process to the side cover, performing two low-temperature heat treatments on the transparent paper on each side, resulting in smooth and flat sides of the cigarette pack and significantly improving the appearance quality of the transparent paper cigarette packs. However, this process requires the use of a conveyor belt on the machine base to intermittently transport the small packs of cigarettes to the designated heat treatment positions; furthermore, the time of transport to the heat treatment positions must be synchronized with the rhythm of other equipment. Any time difference will affect the quality of the side seal heat treatment of the cigarette packs.

[0004] Although there are many existing technologies for intermittently conveying cigarette packs on a conveyor belt, such as the most common method of using a servo motor to control the intermittent rotation of the motor to achieve the purpose of intermittently conveying the cigarette packs, the conveyor belt is relatively soft and the cigarette packs will swing on the conveyor belt when intermittently conveying the cigarette packs. This causes the position of the cigarette packs to deviate from the standard position when side sealing and embossing the cigarette packs. Therefore, in actual use, there is still a problem of poor side sealing and embossing quality. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a positioning device for a packaging machine box mold frame, which solves the problem that the position of the cigarette pack deviates from the standard position, resulting in poor side sealing and stamping quality.

[0006] This invention solves the above-mentioned technical problems through the following technical means: a positioning device for a packaging machine box mold frame, comprising a machine base and a first synchronous belt, the first synchronous belt being disposed on the machine base, and further comprising:

[0007] The limiting mechanism includes a limiting component and an annular guide rail assembly. The limiting component includes a mold frame, a first guide wheel group, and a second guide wheel group. The mold frame is horizontally fixed on a first synchronous belt. Both the first and second guide wheel groups are set on the mold frame. The first guide wheel group is vertically set, and the second guide wheel group is horizontally set. The annular guide rail assembly includes a stepped annular seat and an annular cover plate. The annular seat is horizontally fixed on a machine base. The annular cover plate is horizontally fixed on the surface of the annular seat away from the machine base. The first guide wheel group is set on the annular seat and can abut against the surface of the annular cover plate near the annular seat. The second guide wheel group always abuts against the side wall of the annular cover plate.

[0008] A linkage positioning mechanism used in conjunction with a limiting mechanism is mounted on a base and is used to push the mold frame into a vertical position.

[0009] The technical principle of this invention is as follows: The first synchronous belt on the base is soft, and the box mold frame fixedly installed on the synchronous belt will vibrate and shift during operation. The first guide wheel assembly, in cooperation with the annular guide rail assembly, supports the box mold frame, reducing the distance of its shift. Furthermore, the second guide wheel assembly, in cooperation with the annular cover plate, further limits the box mold frame's position, reducing its vibration. A linkage positioning mechanism pushes the box mold frame into a vertical position, ensuring accurate positioning without deflection, facilitating smooth cigarette pack feeding.

[0010] Furthermore, the first guide wheel assembly includes a load-bearing wheel, a first screw, and a first bushing. An extension plate is vertically fixedly installed on the surface of the mold frame near the machine base. The first screw is horizontally fixedly installed on the extension plate. The first bushing is coaxially sleeved on the side of the first screw away from the extension plate. The load-bearing wheel is coaxially fixedly installed on the first bushing.

[0011] Furthermore, the second guide wheel assembly includes a second screw, a washer, and a guide wheel. The second screw is vertically fixed on the surface of the box mold frame near the machine base. The guide wheel is coaxially sleeved on the second screw, and the washer is coaxially sleeved on the second screw, with the washer positioned between the guide wheel and the box mold frame.

[0012] Furthermore, the linkage positioning mechanism includes a driving component, a first transmission component, a second transmission component, and a third transmission component that are driven sequentially. The driving component, the first transmission component, the second transmission component, and the third transmission component are all fixedly mounted on the base. The driving component is used to drive the positioning mechanism. The first transmission component is used to drive the second transmission component to rotate horizontally. The second transmission component is used to drive the third transmission component to swing. The third transmission component is used to push the box mold frame so that the box mold frame is located in the vertical direction. The second transmission component is vertically arranged. The first transmission component and the third transmission component are located at both ends of the second transmission component.

[0013] Furthermore, the active component includes a drive shaft and a support base. The drive shaft is vertically mounted on the lower side of the machine base, and a horizontally mounted main pulley is coaxially fixed on the drive shaft. The support base is fixedly mounted on the lower side of the machine base, and a vertically mounted driven shaft is rotatably connected to the support base. A cam is horizontally fixedly mounted on the end of the driven shaft away from the support base, and a horizontally mounted driven wheel is coaxially fixed on the driven shaft. The driven wheel is located between the support base and the cam, and a second synchronous belt is located between the drive wheel and the driven wheel.

[0014] Furthermore, the first transmission assembly includes a support and a connecting rod. A horizontally arranged groove is formed on the cam. The support is vertically fixedly installed on the lower side of the machine base. The middle part of the connecting rod is rotatably connected to the support. One end of the connecting rod is rotatably connected to a roller, which is arranged in the groove of the cam. The other end of the connecting rod is rotatably connected to a first spherical bearing. A second spherical bearing is fixedly installed at the end of the first spherical bearing away from the connecting rod. The end of the second spherical bearing away from the first spherical bearing is arranged on the second transmission assembly.

[0015] Furthermore, the second transmission assembly includes a bracket, a base plate, a transmission shaft, and a first rocker arm. The base plate is fixedly mounted on the machine base, the bracket is fixedly mounted on the base plate, and a second bushing is fixedly mounted on the bracket. One end of the transmission shaft is vertically inserted into the second bushing, and the other end of the transmission shaft passes through the base plate and is coaxially fitted with a bearing. An end cap is fixedly mounted on the base plate outside the bearing, and the bearing is fixedly mounted on the end cap. One end of the first rocker arm is located on the end of the second joint bearing away from the first joint bearing, and the other end of the first rocker arm is located on the transmission shaft. The first rocker arm is used to drive the transmission shaft to rotate horizontally. The third transmission assembly is located on the side of the transmission shaft away from the second transmission assembly.

[0016] Furthermore, the third transmission assembly includes a horizontally arranged connecting rod and a mounting base. The mounting base is horizontally fixedly mounted on the machine base. One end of the connecting rod is fixedly mounted on the transmission shaft, and the other end of the connecting rod is provided with a third joint bearing. A rocker arm is fixedly mounted on the other end of the third joint bearing. A fourth joint bearing is fixedly mounted on the end of the rocker arm away from the third joint bearing. An L-shaped second swing arm is rotatably connected to the end of the fourth joint bearing away from the rocker arm. The turning point of the second swing arm is rotatably connected to the mounting base. An extension rod is fixedly mounted on the end of the second swing arm away from the fourth joint bearing. A roller is provided on the end of the extension rod away from the second swing arm. The roller can abut against the box mold frame and is used to push the box mold frame so that the box mold frame is in the vertical direction.

[0017] Furthermore, it also includes a tensioning assembly, which is mounted on the support and is used to tension the second synchronous belt.

[0018] Furthermore, the tensioning assembly includes a tensioning rod and a tensioning wheel. One end of the tensioning rod is fixedly mounted on the support, and the tensioning wheel is disposed on the other end of the tensioning rod, and the tensioning wheel can abut against the second synchronous belt.

[0019] The beneficial effects of this invention are:

[0020] 1. By setting up a limiting component and an annular guide rail component, the present invention can reduce the offset and vibration of the box mold frame, and solve the problem that the position of the cigarette pack deviates from the standard position, resulting in poor side sealing and embossing quality.

[0021] 2. The present invention uses a linkage positioning mechanism to push the box mold frame into a vertical position, so that the box mold frame is accurately positioned without deflection, which facilitates the smooth advancement of the cigarette packs and prevents them from hitting the box mold frame and causing damage to the cigarette packs, thereby causing machine downtime and affecting work efficiency.

[0022] 3. The present invention can keep the second synchronous belt taut at all times through the tensioning component, thereby improving the stability of the transmission between the driving pulley and the driven pulley, and thus improving the stability of the device. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In addition, in the drawings, the same parts use the same reference numerals, and the drawings are not drawn to scale.

[0024] Figure 1 This is a schematic diagram of the main cross-sectional structure of a positioning device for a packaging machine box mold frame according to the present invention;

[0025] Figure 2 This is a top view schematic diagram of the positioning device for a packaging machine box mold frame according to the present invention;

[0026] Figure 3 This invention relates to a positioning device for a packaging machine box mold frame. Figure 1 A top-view cross-sectional structural diagram;

[0027] Figure 4 This is a schematic diagram of the main cross-sectional structure of the box mold frame in the positioning device of the box mold frame of the packaging machine according to the present invention;

[0028] Figure 5 A schematic diagram of the limiting mechanism in the positioning device of a packaging machine box mold frame according to the present invention.

[0029] 1. Machine base; 2. First synchronous belt; 3. First guide pulley assembly; 301. Load-bearing wheel; 302. First screw; 303. First bushing; 4. Second guide pulley assembly; 401. Guide wheel; 402. Second screw; 403. Washer; 5. Annular guide rail assembly; 501. Annular seat; 502. Annular cover plate; 6. Drive assembly; 601. Drive shaft; 602. Support seat; 603. Main pulley; 604. Driven shaft; 605. Cam; 6051. Groove; 606. Driven pulley; 607. Second synchronous belt; 7. First transmission assembly; 701. Support; 702. Connecting rod; 703. Roller; 704. 705. First joint bearing; 8. Second joint bearing; 9. Second transmission assembly; 10. Bracket; 11. Base plate; 12. First rocker arm; 13. Second bushing; 14. Drive shaft; 15. Bearing; 16. End cap; 17. Third transmission assembly; 18. Connecting rod; 19. Mounting seat; 10. Third joint bearing; 11. Rocker arm; 12. Fourth joint bearing; 13. Second rocker arm; 14. Extension rod; 15. Roller; 16. Tensioning assembly; 17. Tensioning rod; 18. Tensioning wheel; 19. Box mold frame; 10. Extension plate; 10. Side sealing and hot stamping device. Detailed Implementation

[0030] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can understand the advantages and effects of the present invention from the content disclosed in this specification. It should be noted that the illustrations provided in the following embodiments are for illustrative purposes only and represent schematic diagrams, not actual pictures, and should not be construed as limiting the present invention. In order to better illustrate the embodiments of the present invention, some components in the figures may be omitted, enlarged, or reduced, and do not represent the actual product size; it is understandable for those skilled in the art that some well-known structures and their descriptions may be omitted in the figures.

[0031] In the figures of this invention, the same or similar reference numerals correspond to the same or similar components. In the description of this invention, it should be understood that terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures, and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships in the figures are for illustrative purposes only and should not be construed as limiting this invention. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0032] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0033] like Figures 1-5 As shown, the present invention discloses a positioning device for a packaging machine box mold frame, including a base 1 and a first synchronous belt 2. The first synchronous belt 2 is disposed on the base 1, and the limiting mechanism includes a limiting component and an annular guide rail component 5.

[0034] like Figure 1 , Figure 2 and Figure 4 As shown, the limiting assembly includes a box mold frame 11, a first guide wheel group 3, and a second guide wheel group 4. The box mold frame 11 is horizontally fixed on the first synchronous belt 2 by bolts. The first guide wheel group 3 and the second guide wheel group 4 are both set on the box mold frame 11. The first guide wheel group 3 is set vertically, and the second guide wheel group 4 is set horizontally.

[0035] like Figure 1 As shown, the first guide wheel assembly 3 includes a load-bearing wheel 301, a first screw 302, and a first bushing 303. An extension plate 1101 is vertically integrally formed on the lower surface of the mold frame 11. The first screw 302 is horizontally fixedly installed on the extension plate 1101. The first bushing 303 is coaxially sleeved on the side of the first screw 302 away from the extension plate 1101. The load-bearing wheel 301 is coaxially engaged with the first bushing 303.

[0036] like Figure 1 and Figure 2 The second guide wheel assembly 4 includes a second screw 402, a washer 403 and a guide wheel 401. The second screw 402 is vertically fixed on the lower surface of the box mold frame 11. The guide wheel 401 is coaxially sleeved on the second screw 402. The washer 403 is coaxially sleeved on the second screw 402 and is disposed between the guide wheel 401 and the box mold frame 11.

[0037] like Figure 1 Figure 2 and Figure 5 The annular guide rail assembly 5 includes a stepped annular seat 501 and an annular cover plate 502. The annular seat 501 is horizontally fixed to the upper surface of the machine base 1 by bolts, and the annular cover plate 502 is horizontally fixed to the upper surface of the annular seat 501. The first guide wheel group 3 is disposed on the annular seat 501, and the first guide wheel group 3 can abut against the surface of the annular cover plate 502 near the annular seat 501. The second guide wheel group 4 always abuts against the side wall of the annular cover plate 502.

[0038] like Figures 1-3 As shown, a linkage 702 positioning mechanism includes a drive component 6, a first transmission component 7, a second transmission component 8, and a third transmission component 9 that are driven sequentially. The drive component 6, the first transmission component 7, the second transmission component 8, and the third transmission component 9 are all fixedly mounted on the base 1.

[0039] like Figure 1 and Figure 3 As shown, the active component 6 is used to drive the positioning mechanism. The active component 6 includes an active shaft 601 and a support base 602. The active shaft 601 is vertically arranged on the lower side of the machine base 1. A horizontally arranged main pulley 603 is coaxially fixed on the active shaft 601 by a pin. The support base 602 is fixedly installed on the lower side of the machine base 1 by bolts. A vertically arranged driven shaft 604 is rotatably connected to the support base 602. A cam 605 is horizontally fixed on the lower end of the driven shaft 604, and a horizontally arranged driven wheel 606 is coaxially fixed on the driven shaft 604 by a pin. The driven wheel 606 is arranged between the support base 602 and the cam 605. A second synchronous belt 607 is arranged between the active wheel and the driven wheel 606.

[0040] like Figure 1 and Figure 3 As shown, the first transmission assembly 7 is used to drive the second transmission assembly 8 to rotate horizontally. The first transmission assembly 7 includes a support 701 and a connecting rod 702. A horizontally arranged groove 6051 is opened on the cam 605. The support 701 is vertically fixed to the lower side of the machine base 1 by bolts. The middle part of the connecting rod 702 is rotatably connected to the support 701. The left end of the connecting rod 702 is rotatably connected to a roller 703, and the roller 703 is arranged in the groove 6051 of the cam 605. The right end of the connecting rod 702 is rotatably connected to a first spherical bearing 704. The upper end of the first spherical bearing 704 is fixedly installed with a second spherical bearing 705 by a pin. The upper end of the second spherical bearing 705 is arranged on the second transmission assembly 8.

[0041] like Figure 1 and Figure 3As shown, the second transmission assembly 8 is used to drive the third transmission assembly 9 to swing. The second transmission assembly 8 includes a bracket 801, a base plate 802, a vertically arranged transmission shaft 805, and a first swing rod 803. The base plate 802 is fixedly mounted on the machine base 1 by bolts. The bracket 801 is fixedly mounted on the base plate 802 by bolts. A second bushing 804 is snapped onto the bracket 801. The lower end of the transmission shaft 805 is vertically inserted into the second bushing 804. The upper end of the transmission shaft 805 passes through the base plate 802 and is coaxially fitted with a bearing 806. An end cap 807 is fixedly mounted on the base plate 802 outside the bearing 806. The bearing 806 is snapped onto the end cap 807. The left end of the first swing rod 803 is rotatably connected to the upper end of the second joint bearing 705. The right end of the first swing rod 803 is snapped onto the transmission shaft 805. The first swing rod 803 is used to drive the transmission shaft 805 to rotate horizontally. The third transmission assembly 9 is located on the side of the transmission shaft 805 away from the second transmission assembly 8.

[0042] like Figure 1 and Figure 2 As shown, the third transmission assembly 9 includes a horizontally arranged connecting rod 901 and a mounting base 902. The mounting base 902 is horizontally fixed on the machine base 1 by bolts. The right end of the connecting rod 901 is snapped onto the upper side of the transmission shaft 805. The left end of the connecting rod 901 is rotatably connected to a third joint bearing 903. The other end of the third joint bearing 903 is threadedly connected to a rocker arm 904. The upper end of the rocker arm 904 is threadedly connected to a fourth joint bearing 905. The upper end of the fourth joint bearing 905 is rotatably connected to an L-shaped second rocker arm 906. The turning point of the second rocker arm 906 is rotatably connected to the mounting base 902. The other end of the second rocker arm 906 is fixedly installed with an extension rod 907 by bolts. The left end of the extension rod 907 is provided with a roller 908. The roller 908 can abut against the box mold frame 11. The roller 908 is used to push the box mold frame 11 so that the box mold frame 11 is in the vertical direction.

[0043] like Figure 3 As shown, the positioning mechanism of the connecting rod 702 also includes a tensioning assembly 10, which includes a tensioning rod 1001 and a tensioning wheel 1002. The lower end of the tensioning rod 1001 is fixedly mounted on the support 701 by bolts, and the tensioning wheel 1002 is located at the upper end of the tensioning rod 1001, and the tensioning wheel 1002 can abut against the second synchronous belt 607.

[0044] The detailed working process of this embodiment is as follows:

[0045] 1. The side sealing and heat sealing device 12 is located on the left side of the machine base 1. When the ZB45 packaging machine is started, the first synchronous belt 2 rotates horizontally on the machine base 1, driving the box mold frame 11 on the first synchronous belt 2 to rotate synchronously. The load-bearing wheel 301 on the box mold frame 11 rotates on the annular seat 501 and abuts against the annular cover plate 502, keeping the load-bearing wheel 301 in a horizontal position, providing support for the box mold frame 11 and reducing the offset distance of the box mold frame 11. At the same time, the guide wheel 401 is close to the side wall of the annular cover plate 502 and rotates on the side wall of the annular cover plate 502, which can further limit the box mold frame 11 and reduce the vibration of the box mold frame 11, thereby reducing the sway and noise of the box mold frame 11 during operation, especially when it stops during intermittent operation.

[0046] 2. When the ZB45 packaging machine starts, the main motor (not shown in the figure) starts synchronously. When the main motor starts, it drives the main shaft 601 to rotate through several gears (not shown in the figure). When the main shaft 601 rotates, it drives the main pulley 603 to rotate synchronously. When the main pulley 603 rotates, it drives the driven pulley 606 to rotate through the second synchronous belt 607. When the driven pulley 606 rotates, it drives the driven shaft 604 in the support base 602 to rotate, which in turn drives the cam 605 on the driven shaft 604 to rotate synchronously. At this time, the tensioning wheel 1002 abuts against the second synchronous belt 607, so that the second synchronous belt 607 is always taut.

[0047] 3. When the cam 605 rotates, the roller 703 inside the cam 605 rotates in the groove 6051 of the cam 605. The middle part of the connecting rod 702 is rotatably connected to the support 701. Under the action of the cam 605, the connecting rod 702 is driven to swing horizontally. When the connecting rod 702 swings horizontally, it drives the first joint bearing 704 and the second joint bearing 705 to swing synchronously. Under the action of the connecting rod 702, the first rocker arm 803 is driven to swing horizontally, thereby driving the transmission shaft 805 to rotate back and forth horizontally.

[0048] 4. The first synchronous belt 2 is soft, so the mold frame 11 is tilted at the cigarette pack inlet. This tilt causes the cigarette pack to hit the mold frame 11 when it enters, resulting in cigarette jamming and damage to the cigarette pack, leading to quality defects such as broken cigarette packs. Although the annular cover plate 502 provides positioning for the mold frame 11, its accuracy is not high. When the drive shaft 805 rotates horizontally back and forth, it drives the connecting rod 901 on the upper side of the base 1 to swing horizontally synchronously. This is due to the combined action of the third joint bearing 903, the rocker arm 904, and the fourth joint bearing 905. When the second swing arm 906 is used, it causes the L-shaped second swing arm 906 to swing horizontally. When the second swing arm 906 swings horizontally, it causes the extension arm 907 to swing synchronously, so that the roller 908 can intermittently abut against the box mold frame 11. Therefore, when the roller 908 abuts against the box mold frame 11, it can push the box mold frame 11, so that the box mold frame 11 is in the vertical direction, and the box mold frame 11 is precisely limited, so that the box mold frame 11 remains vertical and does not deflect, which facilitates the smooth advancement of the cigarette pack and prevents it from hitting the box mold frame 11 and causing damage to the cigarette pack, thus causing the machine to stop and affecting work efficiency.

[0049] The foregoing has provided a detailed description of the limiting mechanism and linkage positioning mechanism for a packaging machine box mold frame provided by the present invention. The specific embodiments described are merely for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

[0050] It should be noted that the terms "one embodiment," "embodiment," "some alternative embodiments," "exemplary embodiments," and "some embodiments" used in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0051] It should be readily understood that the terms “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0052] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0053] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A positioning device for a packaging machine box mold frame, comprising a machine base and a first synchronous belt, wherein the first synchronous belt is disposed on the machine base, characterized in that, Also includes: A limiting mechanism includes a limiting component and an annular guide rail assembly. The limiting component includes a mold frame, a first guide wheel group, and a second guide wheel group. The mold frame is horizontally fixedly mounted on a first synchronous belt. Both the first and second guide wheel groups are mounted on the mold frame. The first guide wheel group is vertically positioned, and the second guide wheel group is horizontally positioned. The annular guide rail assembly includes a stepped annular seat and an annular cover plate. The annular seat is horizontally fixedly mounted on a machine base, and the annular cover plate is horizontally fixedly mounted on the surface of the annular seat away from the machine base. The first guide wheel group is mounted on the annular seat and can abut against the surface of the annular cover plate near the annular seat. The second guide wheel group always abuts against the side wall of the annular cover plate. A linkage positioning mechanism used in conjunction with a limiting mechanism, the linkage positioning mechanism is mounted on a base and is used to push the mold frame to a vertical position; the first guide wheel assembly includes a load-bearing wheel, a first screw, and a first bushing; an extension plate is vertically fixedly mounted on the surface of the mold frame near the machine base; the first screw is horizontally fixedly mounted on the extension plate; the first bushing is coaxially sleeved on the side of the first screw away from the extension plate; the load-bearing wheel is coaxially fixedly mounted on the first bushing; the second guide wheel assembly includes a second screw, a washer, and a guide wheel; the second screw is vertically fixedly mounted on the surface of the mold frame near the machine base; the guide wheel is coaxially sleeved on the second screw; the washer is coaxially sleeved on the second screw and is disposed between the guide wheel and the mold frame; the linkage positioning mechanism includes a driving component, a first transmission component, a second transmission component, and a third transmission component that are driven sequentially. All three transmission components are fixedly mounted on the base. The active component is used to drive the positioning mechanism. The first transmission component is used to drive the second transmission component to rotate horizontally, and the second transmission component is used to drive the third transmission component to swing. The third transmission component includes a horizontally arranged connecting rod and a mounting base. The mounting base is horizontally fixedly mounted on the base. One end of the connecting rod is fixedly mounted on the transmission shaft, and the other end of the connecting rod is provided with a third joint bearing. The other end of the third joint bearing is fixedly mounted with a rocker arm. The end of the rocker arm away from the third joint bearing is fixedly mounted with a fourth joint bearing. The end of the fourth joint bearing away from the rocker arm is rotatably connected to an L-shaped second swing arm. The turning point of the second swing arm is rotatably connected to the mounting base. The end of the second swing arm away from the fourth joint bearing is fixedly mounted with an extension rod. The end of the extension rod away from the second swing arm is provided with a roller. The roller can abut against the box mold frame and is used to push the box mold frame so that the box mold frame is in the vertical direction.

2. The positioning device for a packaging machine box mold frame according to claim 1, characterized in that, The second transmission assembly is vertically arranged, and the first and third transmission assemblies are located at both ends of the second transmission assembly.

3. The positioning device for a packaging machine box mold frame according to claim 2, characterized in that, The active component includes a drive shaft and a support base. The drive shaft is vertically mounted on the lower side of the machine base, and a horizontally mounted main pulley is coaxially fixed on the drive shaft. The support base is fixedly mounted on the lower side of the machine base, and a vertically mounted driven shaft is rotatably connected to the support base. A cam is horizontally fixedly mounted on the end of the driven shaft away from the support base, and a horizontally mounted driven wheel is coaxially fixed on the driven shaft. The driven wheel is located between the support base and the cam, and a second synchronous belt is provided between the main pulley and the driven wheel.

4. The positioning device for a packaging machine box mold frame according to claim 3, characterized in that, The first transmission assembly includes a support and a connecting rod. The cam has a horizontally arranged groove. The support is vertically fixedly installed on the lower side of the machine base. The middle part of the connecting rod is rotatably connected to the support. One end of the connecting rod is rotatably connected to a roller, which is disposed in the groove of the cam. The other end of the connecting rod is rotatably connected to a first joint bearing. The end of the first joint bearing away from the connecting rod is fixedly installed with a second joint bearing. The end of the second joint bearing away from the first joint bearing is disposed on the second transmission assembly.

5. The positioning device for a packaging machine box mold frame according to claim 4, characterized in that, The second transmission assembly includes a bracket, a base plate, a transmission shaft, and a first rocker arm. The base plate is fixedly mounted on a machine base, the bracket is fixedly mounted on the base plate, and a second bushing is fixedly mounted on the bracket. One end of the transmission shaft is vertically inserted into the second bushing, and the other end of the transmission shaft passes through the base plate and is coaxially fitted with a bearing. An end cap is fixedly mounted on the base plate outside the bearing, and the bearing is fixedly mounted on the end cap. One end of the first rocker arm is located on the end of the second joint bearing away from the first joint bearing, and the other end of the first rocker arm is located on the transmission shaft. The first rocker arm is used to drive the transmission shaft to rotate horizontally. The third transmission assembly is located on the side of the transmission shaft away from the second transmission assembly.

6. The positioning device for a packaging machine box mold frame according to claim 5, characterized in that, It also includes a tensioning assembly, which is disposed on the support and is used to tension the second timing belt.

7. The positioning device for a packaging machine box mold frame according to claim 6, characterized in that, The tensioning assembly includes a tensioning rod and a tensioning wheel. One end of the tensioning rod is fixedly mounted on a support, and the tensioning wheel is disposed on the other end of the tensioning rod, and the tensioning wheel can abut against the second synchronous belt.

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