Packaging machine label paper conveying supporting plate positioning device

Abstract

The invention relates to a packaging machine label paper conveying supporting plate positioning device which comprises a first positioning piece, a second positioning piece, a first positioning piece and a second positioning piece. The second positioning piece is provided with a third positioning surface and a fourth positioning surface; the first positioning piece and the second positioning piece are connected through the connecting piece; the extension size of the connecting piece is smaller than the distance between the first positioning face and the second positioning face, and the first direction is parallel to the conveying direction of the label paper. According to the packaging machine label paper conveying supporting plate positioning device provided by the embodiment of the invention, the size of the connecting piece is smaller than the distance between the first positioning surface and the second positioning surface, so that the first positioning piece can be positioned on the cross arms of the two supporting plates; the first positioning surface and the second positioning surface of the first positioning piece abut against the vertical arms of the supporting plates on the two sides respectively, the third positioning surface and the fourth positioning surface of the second positioning piece abut against the position between the two adjacent modules below, and therefore the positions of the supporting plates can be adjusted conveniently.

Description

Technical Field

[0001] The present application relates to the technical field of cigarette packaging machines, and in particular to a packaging machine trademark paper conveying support plate positioning device. Background Art

[0002] During the production process, cigarette factories need to use packaging machines to package cigarette products, including the transportation of label paper. There are multiple transportation steps before and after the label paper, such as Figure 1 As shown, it is a step of lifting and conveying the trademark paper. A plurality of modules 1-2 are arranged on the conveyor belt 1-1. The trademark paper is stuck in two adjacent modules 1-2. Then the conveyor belt 1-1 runs to convey the trademark paper to the bottom of the two pallets 1-3. At this time, the conveyor belt 1-1 stops temporarily, and other components transfer the trademark paper between the corresponding two modules 1-2 to the two pallets 1-3. In the process of other components transferring the trademark paper upward, the two pallets 1-3 will swing outwards and open to each other under the rotation drive of the driving shaft 1-4, so that the trademark paper can be lifted upward. After the trademark paper is lifted to the specified position, the two driving shafts 1-4 respectively drive the two pallets 1-3 to swing closer to each other, so that the cross arms of the pallets 1-3 can support the lifted trademark paper. Then the trademark paper is lifted by the pallets 1-3. The label paper is then transferred to the subsequent workstation, and then the conveyor belt 1-1 continues to run, so that the next label paper is conveyed to the bottom of the two pallets 1-3, and this is repeated. In the process of transferring the label paper from the conveyor belt 1-1 to the pallet 1-3, the gap space between the vertical arms of the two pallets 1-3 and the gap space between the two pallets 1-3 need to be aligned to ensure that the label paper is smoothly transferred to the pallet 1-3. During adjustment, the position of the two adjacent modules 1-2 on the conveyor belt in the stopped state is usually used as a reference, and then the position of the pallet 1-3 on the drive shaft 1-4 is adjusted to meet the above requirements. During the adjustment process, since the space at the pallet 1-3 is small and the vertical arm of the pallet 1-3 and the module 1-2 are separated by the horizontal arm of the pallet 1-3, it is not convenient to position, and the adjustment process is very troublesome. Summary of the invention

[0003] The purpose of the present application is to provide a packaging machine trademark paper conveying tray positioning device, which can conveniently realize the positioning adjustment of the trademark paper tray, thereby effectively solving the deficiencies existing in the prior art.

[0004] To this end, the embodiment of the present application provides a packaging machine label paper conveying tray positioning device, comprising:

[0005] A first positioning member, wherein the first positioning member is provided with a first positioning surface and a second positioning surface, and the first positioning surface and the second positioning surface are arranged opposite to each other;

[0006] A second positioning member, wherein the second positioning member is provided with a third positioning surface and a fourth positioning surface, and the third positioning surface and the fourth positioning surface are arranged opposite to each other;

[0007] A connecting member, wherein the first positioning member and the second positioning member are connected by the connecting member;

[0008] Among them, the first positioning surface and the second positioning surface are arranged along the first direction, the third positioning surface and the fourth positioning surface are arranged along the first direction, in the first direction, the extension dimension of the connecting member is smaller than the distance between the first positioning surface and the second positioning surface, and the first direction is parallel to the conveying direction of the trademark paper.

[0009] In some possible implementations, the first positioning surface and the second positioning surface are opposite and concentric arc surfaces.

[0010] In some possible implementations, the third positioning surface and the fourth positioning surface are opposite and concentric arc surfaces.

[0011] In some possible implementations, the first positioning member is provided with a first positioning hole, the second positioning member is provided with a second positioning hole, the connecting member is provided with a first positioning column and a second positioning column respectively, the first positioning column is passed through the first positioning hole, and the second positioning column is passed through the second positioning hole.

[0012] In some possible implementations, the axis of the first positioning column, the axis of the second positioning column, the axis of the first positioning hole, and the axis of the second positioning hole are all perpendicular to the first direction.

[0013] In some possible implementations, the first positioning column and the first positioning hole are rotatably connected.

[0014] In some possible implementations, the second positioning column and the second positioning hole are interference fit.

[0015] In some possible implementations, the virtual circles where the first positioning surface and the second positioning surface are located are concentrically arranged with the first positioning hole.

[0016] In some possible implementations, the virtual circle where the third positioning surface and the fourth positioning surface are located is eccentrically disposed with the second positioning hole.

[0017] In some possible implementations, the first positioning member and the second positioning member are both elongated members, and the first positioning member and the second positioning member are both provided with reduction grooves to reduce the weight of the structure.

[0018] According to the packaging machine trademark paper conveying pallet positioning device provided in the embodiment of the present application, under the action of the first positioning member and the second positioning member, the first positioning surface and the second positioning surface on the first positioning member are arranged opposite to each other, and the third positioning surface and the fourth positioning surface on the second positioning member are arranged opposite to each other, and the first positioning member and the second positioning member are connected by a connecting member, so that the first positioning member, the second positioning member and the connecting member form a whole, and in the first direction, the size of the connecting member is smaller than the spacing between the first positioning surface and the second positioning surface, so that the first positioning member can be positioned on the horizontal arms of the two pallets, and the first positioning surface and the second positioning surface of the first positioning member are respectively abutted against the vertical arms of the pallets on both sides, and the third positioning surface and the fourth positioning surface of the second positioning member are abutted between the two adjacent modules below, so that the position of the pallet can be conveniently adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the conveyor belt and the pallet of the packaging machine in the prior art;

[0020] Figure 2 A schematic diagram of the structure of a positioning device provided in an embodiment of the present application;

[0021] Figure 3 A schematic diagram of the structure of the positioning device provided in an embodiment of the present application from another perspective;

[0022] Figure 4 A schematic side view of a positioning device provided in an embodiment of the present application;

[0023] Figure 5 An exploded view of a positioning device provided in an embodiment of the present application;

[0024] Figure 6 A diagram showing the use status of the positioning device provided in an embodiment of the present application;

[0025] Figure 7 Schematic diagram of the status of the trademark paper on the conveyor belt and on the pallet. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0027] like Figure 1-Figure 7As shown, the embodiment of the present application provides a packaging machine trademark paper conveying support plate positioning device, which is applied to the packaging machine of the cigarette factory. As an auxiliary tool, it is used to position and adjust the trademark paper conveying support plate 1-3 of the cigarette factory packaging machine. When the packaging machine conveys the trademark paper, it includes a step of lifting and conveying the trademark paper. The conveyor belt 1-1 below conveys the trademark paper. A plurality of modules 1-2 are arranged on the conveyor belt 1-1. The gap between two adjacent modules 1-2 is used to limit the placement of the trademark paper. The width of the trademark paper and the adjacent modules 1-2 are used to limit the placement of the trademark paper. The gap between the two modules 1-2 corresponds to each other, and two pallets 1-3 are provided. Each pallet 1-3 is driven to swing by a driving shaft 1-4. The pallet 1-3 includes a horizontal arm and a vertical arm. The vertical arm is connected to the driving shaft 1-4. The horizontal arm is used to hold the lifted trademark paper. When the trademark paper moves to the bottom of the two pallets 1-3 under the conveyance of the conveyor belt 1-1, the conveyor belt 1-1 stops temporarily, and then other components lift the trademark paper upward. At the same time, the driving shaft 1-4 drives the pallet 1-3 to swing, so that the two pallets 1-3 are relative to each other. The two pallets 1-3 are opened to each other so that the trademark paper can be lifted upward. After the trademark paper is lifted to a certain height, the driving shaft 1-4 drives the support plate 1-3 to swing in the opposite direction, so that the two pallets 1-3 are relatively close to each other in the opposite direction, and then the horizontal arms of the two pallets 1-3 hold the trademark paper, and then the conveyor belt 1-1 continues to run, and the above steps are repeated. In this process, in the vertical position, the gap space between the vertical arms of the two pallets 1-3 and the gap space between the two adjacent modules 1-2 below after the conveyor belt 1-1 stops need to correspond to each other, so that the trademark paper can be It is smoothly lifted. Due to the long-term swinging action of the pallet 1-3, the pallet 1-3 needs to be adjusted regularly. During the adjustment process, due to the limited space at the pallet 1-3 and the interference of the horizontal arm of the pallet 1-3, the positioning between the vertical arm of the pallet 1-3 and the lower module 1-2 is very inconvenient. It requires multiple adjustments and test runs to complete the positioning. The adjustment process is not convenient enough. The positioning device of the present application aims to realize the convenient and quick positioning adjustment of the pallet 1-3, thereby improving the convenience of the positioning adjustment of the pallet 1-3.

[0028] The packaging machine trademark paper conveying tray 1-3 positioning device comprises a first positioning member 101, a second positioning member 102 and a connecting member 200, the first positioning member 101 is provided with a first positioning surface 301 and a second positioning surface 302, the first positioning surface 301 and the second positioning surface 302 on the first positioning member 101 are arranged opposite to each other, the second positioning member 102 is provided with a third positioning surface 303 and a fourth positioning surface 304, the third positioning surface 303 and the fourth positioning surface 304 on the second positioning member 102 are arranged opposite to each other, the first positioning member 101 and the second positioning member 102 are connected by the connecting member 200, and a first direction is set, and the first direction is parallel to the conveying direction of the trademark paper, specifically: the first direction is parallel to the conveying direction of the trademark paper on the lower conveyor belt 1-1, the conveying direction of the conveyor belt 1-1 is taken as the horizontal left and right direction, that is, the first direction is parallel to the horizontal left and right direction, the first positioning surface 301 and the second positioning surface 302 are arranged along the first direction, and the third positioning surface 303 and the fourth positioning surface 304 are arranged along the first direction, and in the first direction, the extension size of the connecting member 200 is smaller than the distance between the first positioning surface 301 and the second positioning surface 302, that is, in the vertical projection, the length of the connecting member 200 in the first direction is smaller than the distance between the first positioning surface 301 and the second positioning surface 302. In this way, when the two pallets 1-3 are swung to a state where they are close to each other and can hold the trademark paper, the first positioning member 101 can be located on the cross arms of the two pallets 1-3, the connecting member 200 can extend downward through the gap between the cross arms of the two pallets 1-3, and the second positioning member 102 can be located in the gap between the two modules 1-2 on the conveyor belt 1-1 below. In this way, through the positioning of the upper and lower first positioning members 101 and the second positioning member 102, the positioning between the two pallets 1-3 and the two adjacent modules 1-2 below can be achieved. The operation is convenient and quick, and the adjustment can be completed by positioning once.

[0029] Preferably, the first positioning surface 301 and the second positioning surface 302 are opposite and concentric arcuate surfaces, the third positioning surface 303 and the fourth positioning surface 304 are opposite and concentric arcuate surfaces, more preferably, the first positioning member 101 and the second positioning member 102 are both elongated members, the first positioning member 101 is an elongated member, the first positioning surface 301 and the second positioning surface 302 are located at the outermost sides at both ends of the length direction of the first positioning member 101, the first positioning member 101 is a long plate-shaped structure, and the first positioning surface 301 and the second positioning surface 302 are the end surfaces at both ends of the length direction of the first positioning member 101 respectively. The first positioning surface 301 and the second positioning surface 302 are both arcuate surfaces, the plane where the first positioning member 101 is located is a horizontal plane, and the axis direction of the virtual ring where the arcuate surfaces of the first positioning surface 301 and the second positioning surface 302 are located is a vertical direction. In this way, when the first positioning member 101 is positioned between the vertical arms of the two support plates 1-3, the positioning of the support plates 1-3 can be completed as long as the first positioning surface 301 and the second positioning surface 302 are respectively against the vertical arms on both sides. Even if the first positioning member 101 is slightly deflected at an angle, the positioning gap width is still accurate. As long as the first positioning surface 301 is determined, the positioning gap width can be accurately positioned. and the diameter of the virtual ring where the second positioning surface 302 is located, so as to improve the convenience of positioning adjustment and the fault tolerance rate. Similarly, the second positioning member 102 is an elongated member, and the third positioning surface 303 and the fourth positioning surface 304 are located at the outermost ends of the second positioning member 102 in the length direction. The second positioning member 102 is also a long plate-shaped structure. The third positioning surface 303 and the fourth positioning surface 304 are respectively the end surfaces at the two ends of the length direction of the second positioning member 102. The third positioning surface 303 and the fourth positioning surface 304 are both arc-shaped surfaces. The plane where the second positioning member 102 is located is a horizontal plane. The third positioning surface 303 and the fourth positioning surface 304 are respectively arc-shaped surfaces. 03 and the fourth positioning surface 304 are located in the vertical direction. Furthermore, after the second positioning member 102 is positioned between the two adjacent modules 1-2 below, the module 1-2 can be positioned as long as the third positioning surface 303 and the fourth positioning surface 304 are respectively abutted against the modules 1-2 on both sides. That is, even if the second positioning member 102 has a slight angular deviation, the gap between the two adjacent modules 1-2 is still accurate. It is only necessary to determine the diameter of the virtual ring where the third positioning surface 303 and the fourth positioning surface 304 are located, thereby further improving the convenience and fault tolerance of positioning adjustment.

[0030] like Figure 6 The figure shows the usage status of the positioning device.

[0031] In some embodiments, a first positioning hole 1011 is provided on the first positioning member 101, a second positioning hole 1021 is provided on the second positioning member 102, and the connecting member 200 is respectively provided with a first positioning column 201 and a second positioning column 202, the first positioning column 201 is passed through the first positioning hole 1011, and the second positioning column 202 is passed through the second positioning hole 1021. In this embodiment, the first positioning member 101 is connected to the second positioning member 102 through the connecting member 200, the first positioning column 201 on the connecting member 200 can be passed through the first positioning hole 1011 of the first positioning member 101, and the second positioning column 202 on the connecting member 200 can be passed through the second positioning hole 1021 of the second positioning member 102, thereby realizing the connection between the first positioning member 101 and the second positioning member 102, and the connection is more convenient by hole-type plug-in.

[0032] More preferably, the axis of the first positioning column 201, the axis of the second positioning column 202, the axis of the first positioning hole 1011 and the axis of the second positioning hole 1021 are all perpendicular to the first direction, so that the first positioning member 101, the connecting member 200 and the second positioning member 102 form an I-shape as a whole, and the positioning is accurate and convenient.

[0033] Preferably, the first positioning column 201 is rotatably connected to the first positioning hole 1011, and the second positioning column 202 is interference fit with the second positioning hole 1021, so that the first positioning member 101 can rotate relative to the connecting member 200, and the second positioning member 102 is fixed relative to the connecting member 200. During the positioning operation, the connecting member 200 and the second positioning member 102 can be placed as a whole between the two modules 1-2, the fastening bolts between the support plate 1-3 and the drive shaft can be loosened, and then the connecting member 200 can be passed upward through the gap between the cross arms of the two support plates 1-3, and then The first positioning member 101 is connected to the first positioning column 201 on the top of the connecting member 200, so that the length directions of the first positioning member 101 and the second positioning member 102 are parallel to the first direction, and then the position of the support plate 1-3 on the driving shaft is adjusted so that the support plates 1-3 on both sides are respectively against the first positioning surface 301 and the second positioning surface 302, that is, the positioning adjustment of the support plates 1-3 is completed. In this way, it is more convenient to operate in a small space of the equipment, and the first positioning member 101 can swing at a certain angle relative to the second positioning member 102, and the positioning adjustment is more convenient.

[0034] More preferably, the virtual circle where the first positioning surface 301 and the second positioning surface 302 are located is concentric with the first positioning hole 1011 , and the virtual circle where the third positioning surface 303 and the fourth positioning surface 304 are located is eccentric with the second positioning hole 1021 .

[0035] In practice, the gap between the two modules 1-2 on the conveyor belt 1-1 is 2 mm larger than the width of the trademark paper, and the gap between the vertical arms of the two pallets 1-3 is 0.2 mm larger than the width of the trademark paper. For positioning, when other components vertically lift the trademark paper on the conveyor belt 1-1 to between the two pallets 1-3, to be precise, the width of the trademark paper needs to be aligned with the gap between the inner walls of the vertical arms of the two pallets 1-3 in width. Only in this way can the trademark be accurately aligned with the pallet 1-3. When the conveyor belt 1-1 transports the trademark paper, when the conveyor belt 1-1 stops, the trademark paper will rush forward and hit the side wall of the front module 1-2 under the action of inertia, such as Figure 7 As shown, in order to align the trademark paper with the vertical arms of the two pallets 1-3, theoretically, in the first direction of conveying, when the conveyor belt 1-1 stops, the inner side of the downstream module 1-2 between the two lower modules 1-2 should lag behind the inner side of the vertical arm of the upper downstream pallet 1-3 by 0.1 mm. Therefore, the vertical center line between the two adjacent modules 1-2 below and the vertical center line between the inner sides of the vertical arms of the two pallets 1-3 need to have an offset deviation, and this deviation value is 1 mm. In this way, when the conveyor belt 1-1 stops, the trademark paper can be aligned with the two upper pallets 1-3.

[0036] Therefore, in this embodiment, the connecting member 200 is arranged in an axial shape as a whole, and the overall axis of the connecting member 200, the axis of the first positioning column 201 and the axis of the second positioning column 202 coincide with each other, and the axis of the virtual ring where the first positioning surface 301 and the second positioning surface 302 are located is coaxial with the first positioning hole 1011. In this way, the axis of the virtual ring where the third positioning surface 303 and the fourth positioning surface 304 are located is offset from the axis of the second positioning hole 1021, and the eccentric spacing there is the same as the above-mentioned deviation value, that is, 1 mm, that is, Figure 4 The interval between the dotted line A and the dotted line B, and, in the conveying direction of the conveyor belt 1-1, the axis of the virtual ring where the third positioning surface 303 and the fourth positioning surface 304 are located is closer to the upstream than the axis of the second positioning hole 1021, and the arrangement direction of the axis of the virtual ring where the third positioning surface 303 and the fourth positioning surface 304 are located and the axis of the second positioning hole 1021 is the first direction, so that the corresponding relationship between the two pallets 1-3 and the two modules 1-2 can meet the centering requirements of the trademark paper.

[0037] More preferably, an indicating arrow 400 is provided on the second positioning member 102, and the indicating direction of the indicating arrow 400 is the direction in which the conveyor belt 1-1 conveys the trademark paper. For the second positioning member 102, in the indicating direction of the indicating arrow 400, the axis of the virtual ring where the third positioning surface 303 and the fourth positioning surface 304 are located is located upstream of the axis of the second positioning hole 1021, and the deviation spacing is 1 mm. Then, when the second positioning member 102 is positioned and placed between the two adjacent modules 1-2 below, the direction of the indicating arrow 400 corresponds to the conveying direction of the conveyor belt 1-1, so that positioning is more convenient.

[0038] More preferably, a reducing groove 500 is provided on the first positioning member 101 and the second positioning member 102 to reduce the weight of the structure. In this embodiment, the first positioning member 101 and the second positioning member 102 are both elongated components. The reducing groove 500 is provided at the lower part of the first positioning member 101 and the lower part of the second positioning member 102. The reducing groove 500 is recessed and avoids the position area of ​​the first positioning surface 301, the second positioning surface 302, the third positioning surface 303, the fourth positioning surface 304, the first positioning hole 1011 and the second positioning hole 1021, so as to achieve structural weight reduction and avoid affecting the connection strength between the components, and avoid the phenomenon of inaccurate positioning caused by too narrow contact surface during positioning. The too narrow contact surface here refers to the contact between the first positioning surface 301 and the second positioning surface 302 and the vertical arm of the support plate 1-3, and refers to the contact between the third positioning surface 303 and the fourth positioning surface 304 and the module 1-2.

[0039] It should be noted that the phrases "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include certain features, structures or characteristics, but not every embodiment may include the certain features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing certain features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.

[0040] It should be easily understood that “on,” “above,” and “over” in the present disclosure should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above” or “over,” but also may include the meaning of “above” or “over something” with no intervening features or layers therebetween (i.e., directly on something).

[0041] In addition, spatially relative terms, such as "below," "below," "beneath," "above," "above," etc., may be used herein for ease of description 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 in addition to the orientation shown in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.

[0042] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A packaging machine label paper conveying tray positioning device, characterized in that: include: A first positioning member, wherein the first positioning member is provided with a first positioning surface and a second positioning surface, and the first positioning surface and the second positioning surface are arranged opposite to each other; A second positioning member, wherein the second positioning member is provided with a third positioning surface and a fourth positioning surface, and the third positioning surface and the fourth positioning surface are arranged opposite to each other; A connecting member, wherein the first positioning member and the second positioning member are connected by the connecting member; Among them, the first positioning surface and the second positioning surface are arranged along the first direction, the third positioning surface and the fourth positioning surface are arranged along the first direction, in the first direction, the extension dimension of the connecting member is smaller than the distance between the first positioning surface and the second positioning surface, and the first direction is parallel to the conveying direction of the trademark paper.

2. The label paper conveying and supporting plate positioning device for a packaging machine according to claim 1, characterized in that: The first positioning surface and the second positioning surface are opposite and concentric arc surfaces.

3. The label paper conveying and supporting plate positioning device for a packaging machine according to claim 2, characterized in that: The third positioning surface and the fourth positioning surface are opposite and concentric arc surfaces.

4. The label paper conveying and supporting plate positioning device for a packaging machine according to claim 3, characterized in that: The first positioning member is provided with a first positioning hole, the second positioning member is provided with a second positioning hole, the connecting member is provided with a first positioning column and a second positioning column respectively, the first positioning column is passed through the first positioning hole, and the second positioning column is passed through the second positioning hole.

5. The label paper conveying and supporting plate positioning device for a packaging machine according to claim 4, characterized in that: The axis of the first positioning post, the axis of the second positioning post, the axis of the first positioning hole, and the axis of the second positioning hole are all perpendicular to the first direction.

6. A packaging machine label paper conveying and supporting plate positioning device according to claim 5, characterized in that: The first positioning column and the first positioning hole are rotatably connected.

7. The label paper conveying and supporting plate positioning device for a packaging machine according to claim 5, characterized in that: The second positioning column and the second positioning hole are interference fit.

8. The label paper conveying and supporting plate positioning device for a packaging machine according to claim 5, characterized in that: The virtual circles where the first positioning surface and the second positioning surface are located are concentrically arranged with the first positioning hole.

9. The label paper conveying and supporting plate positioning device for a packaging machine according to claim 5, characterized in that: The virtual circle where the third positioning surface and the fourth positioning surface are located is eccentrically arranged with the second positioning hole.

10. The label paper conveying and supporting plate positioning device for a packaging machine according to claim 1, characterized in that: The first positioning member and the second positioning member are both elongated members, and the first positioning member and the second positioning member are both provided with reduction grooves to reduce the weight of the structure.

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