Adjustable pressure draft tube structure

Abstract

The utility model belongs to the field of seal paper conveying technology discloses adjustable pressure guide wheel structure. The adjustable pressure guide wheel structure is used for cooperating with the convex wheel of rotation to convey seal paper, and the adjustable pressure guide wheel structure includes frame, first adjusting assembly and second adjusting assembly, in the first adjusting assembly, first guide wheel rotatory mounting is in first mounting seat, the first end of first adjusting lever is connected with first mounting seat threadedly, the both ends of first compression spring are respectively with frame and the second end of first adjusting lever abut, so that the pressure of first compression spring is adjusted through the loose regulation or the screwing of first adjusting lever, in the second adjusting assembly, second guide wheel rotatory mounting is in second mounting seat, the first end of second adjusting lever is connected with frame threadedly, the both ends of second compression spring are respectively with second mounting seat and the second end of second adjusting lever abut, so that the pressure of second compression spring is adjusted through the loose regulation or the screwing of second adjusting lever. The adjustable pressure guide wheel structure can satisfy the requirement of seal paper conveying, and improves the conveying stability.

Description

Technical Field

[0001] This utility model relates to the field of sealing paper conveying technology, and in particular to an adjustable pressure guide wheel structure. Background Technology

[0002] The conveying device for conveying sealing paper in the packaging machine includes a suction roller, a cam, and a guide wheel structure that cooperates with the cam. The guide wheel structure includes a first guide wheel and a second guide wheel. The single sheet of sealing paper sucked up by the suction roller is conveyed to the first guide wheel and clamped between the first guide wheel and the cam. The cam and the first guide wheel rotate, driving the sealing paper to be conveyed to the second guide wheel and clamped between the second guide wheel and the cam. The cam and the second guide wheel rotate, driving the sealing paper to the glue coating position for glue coating.

[0003] Currently, the first guide wheel is pressed against the cam by a compression spring, and the second guide wheel is pressed against the cam. The pressure of the compression spring is fixed and cannot be adjusted. The pressure of the compression spring will gradually decrease over time, and the pressure on the sealing paper will not meet the requirements. This will cause the sealing paper to be skewed, the sealing paper to be blocked, and it will be normal when running at low speed, but mechanical failures such as incomplete delivery will occur when running at high speed.

[0004] Therefore, an adjustable pressure guide wheel structure is urgently needed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an adjustable pressure guide wheel structure to meet the requirements for conveying sealing paper, improve the adaptability and conveying stability of the guide wheel structure, and avoid mechanical failures that result in incomplete conveying.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] An adjustable pressure guide roller structure for cooperating with a rotating cam to feed sealing paper, the adjustable pressure guide roller structure includes: a frame;

[0008] The first adjustment assembly includes a first guide wheel, a first mounting base, a first compression spring, and a first adjustment rod. The first guide wheel is rotatably mounted on the first mounting base. The first mounting base has a first through hole with a first internal thread. The first end of the first adjustment rod has a first external thread that mates with the first internal thread, passes through the first through hole, and is threadedly connected to the first mounting base. The two ends of the first compression spring abut against the frame and the second end of the first adjustment rod, respectively, so that the pressure of the first compression spring can be adjusted by loosening or tightening the first adjustment rod.

[0009] The second adjustment assembly includes a second guide wheel, a second mounting base, a second compression spring, and a second adjustment rod. The second guide wheel is rotatably mounted on the second mounting base. The frame has a second through hole with a second internal thread. The first end of the second adjustment rod has a second external thread that mates with the second internal thread and passes through the second through hole to be threadedly connected to the frame. The two ends of the second compression spring abut against the second mounting base and the second end of the second adjustment rod, respectively, so that the pressure of the second compression spring can be adjusted by loosening or tightening the second adjustment rod.

[0010] As an optional solution for the adjustable pressure guide wheel structure, the first adjustment component also includes a first guide rod. The frame is provided with a guide groove. One end of the first guide rod is fixedly connected to the first mounting base, and the other end extends into the guide groove and slides in cooperation with the guide groove. The depth of the first guide rod extending into the guide groove is adjustable so that the distance between the first mounting base and the frame is adjustable.

[0011] As an alternative to the adjustable pressure guide wheel structure, the first adjustment component further includes a first fastener, which is sleeved on the first guide rod and abuts against the frame to lock the position of the first guide rod, thereby fixing the distance between the first mounting base and the frame.

[0012] As an optional solution for the adjustable pressure guide wheel structure, the second adjustment assembly also includes a second guide rod. The second mounting base is provided with a through port. One end of the second guide rod is fixedly connected to the frame, and the other end passes through the through port and slides in cooperation with the through port. The second mounting base can slide along the axial direction of the second guide rod to adjust the distance between it and the frame.

[0013] As an alternative to the adjustable pressure guide wheel structure, the second adjustment component also includes a second fastener, which is sleeved on the second guide rod and abuts against the second mounting seat to lock the position of the second mounting seat and fix the distance between the second mounting seat and the frame.

[0014] As an optional solution for the adjustable pressure guide wheel structure, the frame is provided with a first positioning groove, and the end of the first compression spring away from the first adjusting rod is disposed in the first positioning groove, which is used to position the first compression spring; the second mounting base is provided with a second positioning groove, and the end of the second compression spring away from the second adjusting rod is disposed in the second positioning groove, which is used to position the second compression spring.

[0015] As an optional solution for an adjustable pressure guide wheel structure, the first adjustment assembly includes two first compression springs and two first adjustment rods. Two first through holes are spaced apart on the first mounting base. The two first ends of the two first adjustment rods pass through the corresponding first through holes and are threadedly connected to the first mounting base. The two first ends of the two first compression springs abut against the frame, and the two second ends of the two first compression springs abut against the second ends of the corresponding first adjustment rods.

[0016] As an optional solution for the adjustable pressure guide wheel structure, the second adjustment assembly includes two second compression springs and two second adjustment rods. Two second through holes are spaced apart on the frame. The two first ends of the two second adjustment rods pass through the corresponding second through holes and are threadedly connected to the frame. The two first ends of the two second compression springs abut against the second mounting base, and the two second ends of the two second compression springs abut against the second ends of the corresponding second adjustment rods.

[0017] As an optional solution for the adjustable pressure guide wheel structure, the first mounting base is provided with a slot, and part of the second mounting base can be inserted into the slot to limit the relative position between the first mounting base and the second mounting base.

[0018] As an alternative to the adjustable pressure guide wheel structure, the first mounting base is provided with a clearance opening, into which the second guide wheel can extend and abut against the cam. The clearance opening is configured to provide movement space for the second guide wheel.

[0019] Beneficial effects:

[0020] This utility model provides an adjustable pressure guide wheel structure. During operation, a single sheet of sealing paper is fed to the first guide wheel and clamped between it and a cam. The cam rotates synchronously with the first guide wheel, smoothly feeding the sealing paper to the second guide wheel. The sealing paper is then clamped between the second guide wheel and the cam, which rotates synchronously with the second guide wheel, allowing the single sheet of sealing paper to be precisely fed to the next station. When adjusting the adjustable pressure guide wheel structure, the first adjusting rod engages with the threaded first through-hole of the first mounting base. Tightening the first adjusting rod compresses the first compression spring, increasing its pressure; loosening the anti-loosening first compression spring reduces its pressure, thus adjusting the pressure of the first guide wheel against the cam. Similarly, the second adjusting rod engages with the threaded second through-hole of the frame. Tightening the second adjusting rod compresses the second compression spring, increasing its pressure; loosening the anti-loosening second compression spring reduces its pressure, thus adjusting the pressure of the second guide wheel against the cam. This adjustable pressure guide wheel structure can meet the requirements for sealing paper feeding by adjusting the pressure of the first and second pressure springs, adapting to sealing paper of different thicknesses. It ensures that the first guide wheel and the cam are tightly fitted together without slipping during the feeding process, and the second guide wheel and the cam are tightly fitted together without slipping, avoiding mechanical failures such as incomplete feeding, reducing downtime caused by skewed sealing paper feeding and paper blockage, and improving the adaptability and feeding stability of the adjustable pressure guide wheel structure. It also reduces the frequency of replacing the first and second pressure springs, reducing the labor intensity of maintenance personnel, and reduces the need to consider the manufacturing pressure errors of the first and second pressure springs themselves, thus improving the stability and reliability of the adjustable pressure guide wheel structure. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the adjustable pressure guide wheel structure provided in this embodiment of the utility model;

[0022] Figure 2 This is a first cross-sectional view of the adjustable pressure guide wheel structure provided in this embodiment of the utility model;

[0023] Figure 3 This is a schematic diagram of the first adjustment component provided in an embodiment of the present utility model;

[0024] Figure 4 This is a second cross-sectional view of the adjustable pressure guide wheel structure provided in this embodiment of the utility model;

[0025] Figure 5 This is a first schematic diagram of the second adjustment component provided in this embodiment of the present invention;

[0026] Figure 6 This is a third sectional view of the adjustable pressure guide wheel structure provided in this embodiment of the utility model;

[0027] Figure 7 This is a second schematic diagram of the second adjustment component provided in this embodiment of the present invention.

[0028] In the picture:

[0029] 100. Cam;

[0030] 1. Frame; 11. Second through hole; 12. Guide groove; 13. First positioning groove;

[0031] 2. First adjusting component; 21. First guide wheel;

[0032] 22. First mounting base; 221. First through hole; 222. Slot; 223. Clearance opening;

[0033] 23. First compression spring; 24. First adjusting rod; 25. First guide rod; 26. First fastener;

[0034] 3. Second adjustment component; 31. Second guide wheel;

[0035] 32. Second mounting base; 321. Connecting port; 322. Second positioning slot;

[0036] 33. Second compression spring; 34. Second adjusting rod; 35. Second guide rod; 36. Second fastener. Detailed Implementation

[0037] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0038] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0041] This embodiment discloses an adjustable pressure guide wheel structure, such as Figures 1-2 As shown, the adjustable pressure guide wheel structure is used to cooperate with the rotating cam 100 to convey the sealing paper. The adjustable pressure guide wheel structure includes a frame 1, a first adjustment component 2, and a second adjustment component 3. The first adjustment component 2 includes a first guide wheel 21, a first mounting base 22, a first compression spring 23, and a first adjustment rod 24. The first guide wheel 21 is rotatably mounted on the first mounting base 22. The first mounting base 22 is provided with a first through hole 221 with a first internal thread. The first end of the first adjustment rod 24 is provided with a first external thread that cooperates with the first internal thread, and passes through the first through hole 221 and is threadedly connected to the first mounting base 22. The two ends of the first compression spring 23 abut against the frame 1 and the second end of the first adjustment rod 24, respectively, so as to adjust the pressure of the first compression spring 23 by loosening or tightening the first adjustment rod 24. The second adjustment assembly 3 includes a second guide wheel 31, a second mounting base 32, a second compression spring 33, and a second adjustment rod 34. The second guide wheel 31 is rotatably mounted on the second mounting base 32. The frame 1 is provided with a second through hole 11 with a second internal thread. The first end of the second adjustment rod 34 is provided with a second external thread that mates with the second internal thread, and passes through the second through hole 11 to be threadedly connected to the frame 1. The two ends of the second compression spring 33 abut against the second mounting base 32 and the second end of the second adjustment rod 34, respectively, so as to adjust the pressure of the second compression spring 33 by loosening or tightening the second adjustment rod 34.

[0042] like Figure 1As shown, when the adjustable pressure guide wheel structure is working, a single sheet of sealing paper is conveyed to the first guide wheel 21 and clamped between the first guide wheel 21 and the cam 100. The cam 100 and the first guide wheel 21 rotate synchronously, smoothly conveying the sealing paper to the second guide wheel 31. Subsequently, the sealing paper is clamped between the second guide wheel 31 and the cam 100. The cam 100 and the second guide wheel 31 rotate synchronously, and the single sheet of sealing paper continues to be accurately conveyed to the next station.

[0043] like Figure 2 As shown, when adjusting the adjustable pressure guide wheel structure, the first adjusting rod 24 is threadedly engaged with the first through hole 221 of the first mounting base 22. Tightening the first adjusting rod 24 compresses the first compression spring 23, increasing the pressure of the first compression spring 23; loosening the anti-loosening first compression spring 23 reduces the pressure of the first compression spring 23, thereby adjusting the pressure of the first guide wheel 21 pressing against the cam 100. The second adjusting rod 34 is threadedly engaged with the second through hole 11 of the frame 1. Tightening the second adjusting rod 34 compresses the second compression spring 33, increasing the pressure of the second compression spring 33; loosening the anti-loosening second compression spring 33 reduces the pressure of the second compression spring 33, thereby adjusting the pressure of the second guide wheel 31 pressing against the cam 100. This adjustable pressure guide wheel structure can meet the requirements for conveying sealing paper by adjusting the pressure of the first pressure spring 23 and the second pressure spring 33. It is suitable for sealing paper of different thicknesses and ensures that the first guide wheel 21 and the cam 100 are in close contact without slippage during the conveying process, and the second guide wheel 31 and the cam 100 are in close contact without slippage. This avoids mechanical failures such as incomplete conveying, reduces downtime caused by skewed sealing paper conveying and paper blockage, and improves the adaptability and conveying stability of the adjustable pressure guide wheel structure. It also reduces the frequency of replacing the first pressure spring 23 and the second pressure spring 33, reduces the labor intensity of maintenance personnel, and reduces the consideration of the manufacturing pressure error of the first pressure spring 23 and the second pressure spring 33 themselves, thus improving the stability and reliability of the adjustable pressure guide wheel structure.

[0044] like Figures 3-4 As shown, the first adjustment assembly 2 also includes a first guide rod 25. The frame 1 has a guide groove 12. One end of the first guide rod 25 is fixedly connected to the first mounting base 22, and the other end extends into the guide groove 12 and slides in cooperation with it. The depth of the first guide rod 25 extending into the guide groove 12 is adjustable, so that the distance between the first mounting base 22 and the frame 1 is adjustable. The first guide rod 25 added to the first adjustment assembly 2 slides in cooperation with the guide groove 12 of the frame 1, and the depth of insertion can be adjusted to change the distance between the first mounting base 22 and the frame 1. This provides stable guidance for the first mounting base 22 and enhances the accuracy and reliability of the position and pressure adjustment of the first guide wheel 21.

[0045] It is worth noting that in the first adjustment component 2, the side of the first compression spring 23 that applies pressure and the side of the first guide rod 25 that adjusts the distance form a symmetrical balance support. The first guide rod 25 slides stably along the guide groove 12 of the frame 1, effectively limiting the first mounting seat 22 from shifting or tilting during pressure adjustment or operation, and can precisely control the distance between the first mounting seat 22 and the frame 1. In conjunction with the elastic pressure of the first compression spring 23, it ensures that the first guide wheel 21 is always precisely engaged with the cam 100, avoiding unstable conveying caused by unilateral force, and significantly improving the stability and reliability of the sealing paper clamping and conveying.

[0046] like Figures 3-4 As shown, the first adjustment assembly 2 also includes a first fastener 26, which is sleeved on the first guide rod 25 and abuts against the frame 1 to lock the position of the first guide rod 25, thereby fixing the distance between the first mounting base 22 and the frame 1. The first fastener 26 of the first adjustment assembly 2, sleeved on the first guide rod 25 and abutting against the frame 1, can lock the position of the first guide rod 25 to fix the distance between the first mounting base 22 and the frame 1, ensuring the stability of the first guide wheel 21, preventing loosening after adjustment, and improving the working reliability of the adjustable pressure guide wheel structure.

[0047] like Figures 5-6 As shown, the second adjustment assembly 3 also includes a second guide rod 35. The second mounting base 32 has a through-hole 321. One end of the second guide rod 35 is fixedly connected to the frame 1, and the other end passes through the through-hole 321 and slides in cooperation with it. The second mounting base 32 can slide along the axial direction of the second guide rod 35 to adjust the distance between itself and the frame 1. The second guide rod 35 of the second adjustment assembly 3 passes through the through-hole 321 of the second mounting base 32 and slides in cooperation with it, allowing the second mounting base 32 to slide along its axial direction to adjust the distance between itself and the frame 1, providing stable guidance for the second guide wheel 31 and improving the accuracy and smoothness of position and pressure adjustment.

[0048] It is worth noting that in the second adjustment component 3, the side of the second pressure spring 33 that applies pressure and the side of the second guide rod 35 that adjusts the distance form a symmetrical balance support. The second guide rod 35 slides stably along the communication port 321 of the second mounting base 32, effectively limiting the offset and tilt of the second mounting base 32 during pressure adjustment or operation. It can precisely control the distance between the second mounting base 32 and the frame 1. In conjunction with the elastic pressure of the second pressure spring 33, it ensures that the second guide wheel 31 is always precisely engaged with the cam 100, avoiding unstable conveying caused by unilateral force, and significantly improving the stability and reliability of the sealing paper clamping and conveying.

[0049] like Figures 5-6As shown, the second adjustment assembly 3 also includes a second fastener 36. The second fastener 36 is sleeved on the second guide rod 35 and abuts against the second mounting base 32 to lock the position of the second mounting base 32, thereby fixing the distance between the second mounting base 32 and the frame 1. The second fastener 36 of the second adjustment assembly 3, sleeved on the second guide rod 35 and abutting against the second mounting base 32, can lock the position of the second mounting base 32 to fix the distance between the second mounting base 32 and the frame 1, ensuring the stability of the second guide wheel 31 and preventing loosening or displacement after adjustment. Combined with the pressure held by the second pressure spring 33, this improves the working reliability of the adjustable pressure guide wheel structure and the stability of the sealing paper feeding.

[0050] In this embodiment, there is one second fastener 36. The second fastener 36 is sleeved on the side of the second guide rod 35 away from the frame 1 and abuts against the second mounting seat 32. This simplifies the structure, effectively locks the position of the second mounting seat 32, prevents the second guide wheel 31 from loosening or shifting, and ensures stable delivery of the sealing paper.

[0051] In other embodiments, there are two second fasteners 36. The two second fasteners 36 are sleeved on the second guide rod 35 and respectively disposed on both sides of the second mounting base 32. They can clamp and fix the position of the second mounting base 32 from both directions, further enhancing the locking effect of the distance between the second mounting base 32 and the frame 1, preventing the second guide wheel 31 from shifting during operation, and improving the stability and reliability after structural adjustment.

[0052] In this embodiment, both the first fastener 26 and the second fastener 36 are nuts, which facilitate quick locking or adjustment of the positions of the first mounting base 22 and the second mounting base 32 by tightening or loosening. This is simple to operate and provides reliable fastening, stably fixing the distance between the first mounting base 22 and the frame 1, and the distance between the second mounting base 32 and the frame 1. This ensures accurate positioning of the first guide wheel 21 and the second guide wheel 31, improving structural adjustment efficiency and operational stability. Correspondingly, the first guide rod 25 and the second guide rod 35 are provided with external threads that mate with the internal threads of the nuts, facilitating nut placement and tightening, and improving operational convenience.

[0053] like Figure 2 As shown, the frame 1 is provided with a first positioning groove 13. The end of the first compression spring 23 away from the first adjusting rod 24 is set in the first positioning groove 13. The first positioning groove 13 is used to position the first compression spring 23. The first positioning groove 13 of the frame 1 positions the end of the first compression spring 23 away from the first adjusting rod 24, which can prevent the first compression spring 23 from shifting or misaligning when subjected to force, ensuring that the elastic pressure of the first compression spring 23 acts stably between the frame 1 and the first adjusting rod 24, improving the accuracy of pressure transmission, and ensuring the reliable pressure adjustment of the first guide wheel 21.

[0054] like Figure 7As shown, the second mounting base 32 is provided with a second positioning groove 322. The end of the second compression spring 33 away from the second adjusting rod 34 is disposed in the second positioning groove 322. The second positioning groove 322 is used to position the second compression spring 33. The second positioning groove 322 of the second mounting base 32 positions the end of the second compression spring 33 away from the second adjusting rod 34, which can prevent the second compression spring 33 from shifting or misaligning when it is stretched or adjusted, ensuring that the elastic pressure acts stably between the second mounting base 32 and the second adjusting rod 34, improving the accuracy of pressure transmission, and ensuring reliable pressure adjustment of the second guide wheel 31.

[0055] like Figure 1 and Figure 3 As shown, the first adjustment assembly 2 includes two first compression springs 23 and two first adjustment rods 24. Two first through holes 221 are spaced apart on the first mounting base 22. The two first ends of the two first adjustment rods 24 pass through the corresponding first through holes 221 and are threadedly connected to the first mounting base 22. The two first ends of the two first compression springs 23 abut against the frame 1, and the two second ends of the two first compression springs 23 abut against the second ends of the corresponding first adjustment rods 24. The two first compression springs 23 and the two first adjustment rods 24 of the first adjustment assembly 2 work together to apply pressure evenly to the first mounting base 22, avoiding unilateral force deviation, improving the stability and accuracy of the pressure adjustment of the first guide wheel 21, and ensuring stable sealing paper feeding.

[0056] like Figure 1 and Figure 5 As shown, the second adjustment assembly 3 includes two second compression springs 33 and two second adjustment rods 34. Two second through holes 11 are spaced apart on the frame 1. The two first ends of the two second adjustment rods 34 pass through the corresponding second through holes 11 and are threadedly connected to the frame 1. The two first ends of the two second compression springs 33 abut against the second mounting base 32, and the two second ends of the two second compression springs 33 abut against the second ends of the corresponding second adjustment rods 34. The two second compression springs 33 and the two second adjustment rods 34 of the second adjustment assembly 3 work together to apply force evenly to the second mounting base 32, avoiding unilateral force deviation, improving the stability and accuracy of the pressure adjustment of the second guide wheel 31, and ensuring stable sealing paper feeding.

[0057] like Figure 1 , Figure 3 and Figure 5 As shown, the first mounting base 22 is provided with a slot 222, into which a portion of the second mounting base 32 can be inserted to limit the relative position between the first mounting base 22 and the second mounting base 32. The slot 222 of the first mounting base 22 allows a portion of the second mounting base 32 to be inserted, which can limit the relative position of the two, prevent misalignment during operation, ensure precise engagement between the first guide wheel 21 and the second guide wheel 31, improve the clamping stability of the sealing paper, and ensure the reliability of the conveying with the cam 100.

[0058] like Figure 1 and Figure 3 As shown, the first mounting base 22 is provided with a clearance opening 223, into which the second guide wheel 31 can extend and abut against the cam 100. The clearance opening 223 provides movement space for the second guide wheel 31. The clearance opening 223 of the first mounting base 22 provides movement space for the second guide wheel 31, allowing the second guide wheel 31 to extend into the clearance opening 223 and abut against the cam 100, avoiding interference between the first mounting base 22 and the movement of the second guide wheel 31, ensuring smooth cooperation between the two and the cam 100, and improving the continuity and stability of the sealing paper feeding.

[0059] like Figure 6 As shown, both the first guide wheel 21 and the second guide wheel 31 are bearing wheels. Bearing wheels can reduce rotational friction resistance, improve the smoothness of cooperation with the cam 100, reduce wear and jamming during the conveying of sealing paper, and enhance the rotational stability of the guide wheels to ensure uniform pressure transmission, further guaranteeing the smoothness of sealing paper conveying and the reliability of the structure.

[0060] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An adjustable pressure guide wheel structure for cooperating with a rotating cam (100) to convey sealing paper, characterized in that, The adjustable pressure guide wheel structure includes: a frame (1); The first adjustment component (2) includes a first guide wheel (21), a first mounting base (22), a first compression spring (23), and a first adjustment rod (24). The first guide wheel (21) is rotatably mounted on the first mounting base (22). The first mounting base (22) is provided with a first through hole (221) with a first internal thread. The first end of the first adjustment rod (24) is provided with a first external thread that mates with the first internal thread, and passes through the first through hole (221) and is threadedly connected to the first mounting base (22). The two ends of the first compression spring (23) abut against the frame (1) and the second end of the first adjustment rod (24) respectively, so as to adjust the pressure of the first compression spring (23) by loosening or tightening the first adjustment rod (24). The second adjustment assembly (3) includes a second guide wheel (31), a second mounting base (32), a second compression spring (33), and a second adjustment rod (34). The second guide wheel (31) is rotatably mounted on the second mounting base (32). The frame (1) is provided with a second through hole (11) with a second internal thread. The first end of the second adjustment rod (34) is provided with a second external thread that mates with the second internal thread, and passes through the second through hole (11) and is threadedly connected to the frame (1). The two ends of the second compression spring (33) abut against the second mounting base (32) and the second end of the second adjustment rod (34) respectively, so as to adjust the pressure of the second compression spring (33) by loosening or tightening the second adjustment rod (34).

2. The adjustable pressure guide wheel structure according to claim 1, characterized in that, The first adjustment component (2) further includes a first guide rod (25). The frame (1) is provided with a guide groove (12). One end of the first guide rod (25) is fixedly connected to the first mounting base (22), and the other end extends into the guide groove (12) and slides in cooperation with the guide groove (12). The depth of the first guide rod (25) extending into the guide groove (12) is adjustable so that the distance between the first mounting base (22) and the frame (1) is adjustable.

3. The adjustable pressure guide wheel structure according to claim 2, characterized in that, The first adjustment component (2) further includes a first fastener (26), which is sleeved on the first guide rod (25) and abuts against the frame (1) to lock the position of the first guide rod (25) to fix the distance between the first mounting base (22) and the frame (1).

4. The adjustable pressure guide wheel structure according to claim 1, characterized in that, The second adjustment component (3) further includes a second guide rod (35). The second mounting base (32) is provided with a through connection port (321). One end of the second guide rod (35) is fixedly connected to the frame (1), and the other end passes through the connection port (321) and slides with the connection port (321). The second mounting base (32) can slide along the axial direction of the second guide rod (35) to adjust the distance between it and the frame (1).

5. The adjustable pressure guide wheel structure according to claim 4, characterized in that, The second adjustment component (3) further includes a second fastener (36), which is sleeved on the second guide rod (35) and abuts against the second mounting base (32) to lock the position of the second mounting base (32) and fix the distance between the second mounting base (32) and the frame (1).

6. The adjustable pressure guide wheel structure according to any one of claims 1-5, characterized in that, The frame (1) is provided with a first positioning groove (13), and the end of the first compression spring (23) away from the first adjusting rod (24) is disposed in the first positioning groove (13). The first positioning groove (13) is used to position the first compression spring (23). The second mounting base (32) is provided with a second positioning groove (322), and the end of the second compression spring (33) away from the second adjusting rod (34) is disposed in the second positioning groove (322). The second positioning groove (322) is used to position the second compression spring (33).

7. The adjustable pressure guide wheel structure according to any one of claims 1-5, characterized in that, The first adjustment assembly (2) includes two first compression springs (23) and two first adjustment rods (24). Two first through holes (221) are provided at intervals on the first mounting base (22). The two first ends of the two first adjustment rods (24) pass through the corresponding first through holes (221) and are threadedly connected to the first mounting base (22). The two first ends of the two first compression springs (23) abut against the frame (1), and the two second ends of the two first compression springs (23) abut against the second ends of the corresponding first adjustment rods (24).

8. The adjustable pressure guide wheel structure according to any one of claims 1-5, characterized in that, The second adjustment assembly (3) includes two second compression springs (33) and two second adjustment rods (34). Two second through holes (11) are provided at intervals on the frame (1). The two first ends of the two second adjustment rods (34) pass through the corresponding second through holes (11) and are threadedly connected to the frame (1). The two first ends of the two second compression springs (33) abut against the second mounting base (32). The two second ends of the two second compression springs (33) abut against the second ends of the corresponding second adjustment rods (34).

9. The adjustable pressure guide wheel structure according to any one of claims 1-5, characterized in that, The first mounting base (22) is provided with a slot (222), and a portion of the second mounting base (32) can be inserted into the slot (222) to limit the relative position between the first mounting base (22) and the second mounting base (32).

10. The adjustable pressure guide wheel structure according to any one of claims 1-5, characterized in that, The first mounting base (22) is provided with a clearance opening (223), and the second guide wheel (31) can extend into the clearance opening (223) and abut against the cam (100). The clearance opening (223) is configured to provide movement space for the second guide wheel (31).

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