A printing machine clamp with adjustable structure

Abstract

The utility model discloses a printing machine clamp with adjustable structure relates to glass bottle production field, and its technical key points are: including base, the top of base is equipped with two clamping pneumatic cylinders, one end of two clamping pneumatic cylinders is equipped with clamping seat, and two clamping seats form clamping interval apart, the top of base is equipped with drive part, drive part is located below clamping interval, and the both sides sliding connection of clamping seat has clamping plate, one side of clamping plate is rotatably connected with two auxiliary rollers, one side of auxiliary roller projects to the inside of clamping interval, and the purpose is in to solve when needing to clamp ultra -small diameter bottle type, and even if complete extension of pneumatic cylinder, the minimum interval between two clamping seats is still greater than the bottle body diameter with the maximum stroke, leads to the technical problem of the inconvenience of printing that auxiliary roller can not be in effective contact with bottle body, can not provide necessary radial support.

Description

Technical Field

[0001] This utility model relates to the field of glass bottle production, and in particular to a printing machine clamp with an adjustable structure. Background Technology

[0002] In glass bottle production, surface printing is a crucial step in enhancing product appearance and brand recognition. This process typically involves screen printing to precisely imprint patterns, text, or logos onto the bottle surface. To ensure clarity, continuity, and accurate registration of the printed pattern, a key prerequisite is that the glass bottle must rotate stably and at a uniform speed during the printing process. Therefore, specialized clamps are commonly used on production lines to fix, position, and drive the glass bottle. These clamps usually consist of a base with two movable gripping seats on the top (e.g., driven by cylinders). The system consists of two clamping seats separated by a clamping gap. The distance between the two clamping seats can be adjusted. Each clamping seat has a clamping plate on both sides, and an auxiliary end on one side of the clamping plate protrudes into the clamping gap. An auxiliary roller is rotatably connected to one side of the auxiliary end. When the glass bottle is placed in the clamping gap, the two clamping seats move closer to the glass bottle, so that the adjacent auxiliary roller contacts the outer edge of the glass bottle. The auxiliary roller rolls in a follow-up state. Its main function is to provide stable radial support from both sides of the glass bottle and prevent the glass bottle from swaying or jumping during rotation.

[0003] However, when it is necessary to clamp ultra-small diameter glass bottles, even when the cylinder is fully extended, its maximum stroke still makes the minimum interval between the two clamping seats larger than the diameter of the glass bottle. This causes the auxiliary roller to be unable to make effective contact with the bottle body and cannot provide the necessary radial support, resulting in inconvenience for printing. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a printing machine clamp with an adjustable structure. The purpose is to solve the technical problem that when it is necessary to clamp ultra-small diameter bottles, even if the cylinder is fully extended, its maximum stroke still makes the minimum interval between the two clamping seats larger than the bottle diameter, which causes the auxiliary roller to be unable to effectively contact the bottle body and provide the necessary radial support, resulting in inconvenience in printing.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A printing machine clamp with an adjustable structure includes a base, two clamping cylinders on the top of the base, a clamping seat at one end of each clamping cylinder, and two clamping seats spaced apart to form a clamping interval. A driving unit is located on the top of the base below the clamping interval. Clamping plates are slidably connected to both sides of the clamping seats. Two auxiliary rollers are rotatably connected to one side of each clamping plate, with one side of each auxiliary roller protruding into the clamping interval. A movable groove is formed inside the clamping plate. Locking holes are formed on both sides of the clamping seats. A locking bolt passes through the movable groove, with one end of the locking bolt threaded into the adjacent locking hole. The locking bolt slides in conjunction with the movable groove. A locking protrusion is provided inside the movable groove, causing the nut of the locking bolt to abut against the locking protrusion.

[0006] When clamping ultra-small diameter glass bottles, the operator first unscrews the locking bolt and slides the clamping plates towards the center of the clamping interval, moving the auxiliary rollers as close to the clamping interval as possible. Then, the locking bolt is tightened, and the locking protrusion in the movable groove contacts the nut of the locking bolt, firmly fixing the clamping plates in the new position and preventing them from shifting during high-speed rotation. In this way, even if the clamping seats driven by the two clamping cylinders cannot get closer due to stroke limitations, the operator can manually slide and lock the clamping plates inward before the clamping cylinders are activated. This allows the auxiliary rollers to effectively contact the outer edge of the ultra-small diameter bottle after the clamping cylinders are activated, providing the necessary radial support for the ultra-small glass bottles. This prevents the ultra-small diameter glass bottles from swaying, jumping, or unevenly rotating during rotation printing, ensuring clear, continuous, and accurate registration of the pattern, and ultimately guaranteeing excellent printing quality.

[0007] Furthermore, in this application, the top of the clamping plate is engraved with adjustment scales, and the top of the clamping seat is engraved with two alignment lines, the alignment lines being close to the adjacent adjustment scales.

[0008] The alignment line on the clamping base provides the operator with a unified reference benchmark. By adjusting the scales of both clamping plates to the same relative position as their respective alignment lines, it can be ensured that the two auxiliary rollers move the same distance to the clamping interval. This ensures that after the glass bottle is clamped, its center line can be accurately aligned with the rotation center of the drive unit, fundamentally guaranteeing the accuracy of the printing.

[0009] Furthermore, in this application, a clearance notch is provided on one side of the clamping plate. The clearance notch is arc-shaped, with its concave surface facing the clamping interval. The clearance notch is located between the two auxiliary rollers.

[0010] The arc-shaped clearance notch on one side of the clamping plate ensures a uniform gap between it and the outer contour of the glass bottle being clamped, thus preventing the clamping plate from contacting the glass bottle during rotation.

[0011] Furthermore, in this application, the top of the base has two guide grooves, and the bottom of the clamping seat is provided with a guide slider, which slides in cooperation with the adjacent guide grooves.

[0012] Furthermore, in this application, the driving unit includes a movable support plate, the top of the base has an installation cavity, the movable support plate is disposed inside the installation cavity, transmission frames are provided on both sides of the movable support plate, a first transmission roller is rotatably connected inside the transmission frame, driving rollers are provided at both ends of the first transmission roller, the driving roller is rotatably connected to the inside of the transmission frame, the outer diameter of the driving roller is larger than the outer diameter of the first transmission roller, and the driving roller is located below the clamping interval.

[0013] Furthermore, in this application, the top of the movable support plate is provided with a drive frame, the inside of the drive frame is rotatably connected to a second transmission roller, a drive motor is provided on one side of the drive frame, the drive motor drives the second transmission roller to rotate, and the outside of the first transmission roller and the second transmission roller of the two drive frames are jointly fitted with a transmission belt.

[0014] Furthermore, in this application, the drive roller is covered with an anti-slip outer sleeve, which is elastic.

[0015] Furthermore, in this application, a lifting cylinder is provided inside the mounting cavity, and the movable support plate is mounted on the piston rod of the lifting cylinder.

[0016] Furthermore, in this application, the clamping seat has an observation port inside, and the observation port is connected to the clamping interval.

[0017] Furthermore, in this application, the auxiliary roller is made of a wear-resistant material.

[0018] This utility model has the following beneficial effects: When clamping ultra-small diameter glass bottles, the operator first unscrews the locking bolt and slides the clamping plates towards the center of the clamping interval, moving the auxiliary rollers as close to the clamping interval as possible. Then, the locking bolt is tightened, and the locking protrusion in the movable groove contacts the nut of the locking bolt, firmly fixing the clamping plates in the new position and preventing them from shifting during high-speed rotation. In this way, even if the clamping seats driven by the two clamping cylinders cannot get closer due to stroke limitations, the operator can manually slide and lock the clamping plates inward before the clamping cylinders are activated. This allows the auxiliary rollers to effectively contact the outer edge of the ultra-small diameter bottle after the clamping cylinders are activated, providing the necessary radial support for the ultra-small glass bottles. This prevents the ultra-small diameter glass bottles from swaying, jumping, or unevenly rotating during rotation printing, ensuring clear, continuous, and accurate registration of the pattern, and ultimately guaranteeing excellent printing quality. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the clamping interval of this utility model.

[0021] Figure 3 This is a schematic diagram of the mounting cavity structure of this utility model.

[0022] Figure 4 This is a schematic diagram of the clamping base of this utility model.

[0023] Figure 5 This is a schematic diagram of the adjustment scale of this utility model.

[0024] Figure 6 This is a schematic diagram of the drive roller of this utility model.

[0025] In the attached figures, the following labels are used: 1. Base; 2. Clamping cylinder; 3. Clamping seat; 4. Clamping plate; 5. Auxiliary roller; 6. Movable slide rail; 7. Locking protrusion; 8. Locking bolt; 9. Locking hole; 10. Drive unit; 11. Guide slider; 12. Guide slide rail; 13. Clearance notch; 14. Mounting cavity; 15. Lifting cylinder; 16. Drive frame; 17. Second transmission roller; 18. Transmission frame; 19. Transmission belt; 20. Movable support plate; 21. Drive roller; 22. First transmission roller; 23. Anti-slip cover; 24. Adjustment scale; 25. Clamping interval; 26. Alignment line; 27. Drive motor; 28. Observation port. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0027] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; 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 according to the specific circumstances.

[0029] Reference Figures 1-6In some specific embodiments, a printing machine clamp with an adjustable structure includes a base 1. The top of the base 1 is provided with two clamping cylinders 2, and one end of each clamping cylinder 2 is provided with a clamping seat 3. The two clamping seats 3 are spaced apart to form a clamping interval 25. The top of the base 1 is provided with a driving part 10, which is located below the clamping interval 25. Clamping plates 4 are slidably connected to both sides of the clamping seat 3. Two auxiliary rollers 5 are rotatably connected to one side of the clamping plate 4. One side of the auxiliary rollers 5 protrudes into the interior of the clamping interval 25. A movable groove 6 is provided inside the clamping plate 4. Locking holes 9 are provided on both sides of the clamping seat 3. A locking bolt 8 passes through the movable groove 6. One end of the locking bolt 8 is threaded into the adjacent locking hole 9. The locking bolt 8 slides in the movable groove 6. A locking protrusion 7 is provided inside the movable groove 6, so that the nut of the locking bolt 8 abuts against the locking protrusion 7.

[0030] With the above technical solution, when it is necessary to clamp ultra-small diameter glass bottles, the operator first unscrews the locking bolt 8 and slides the clamping plate 4 towards the center of the clamping interval 25, so that the auxiliary roller 5 moves as close as possible to the clamping interval 25. Then, the locking bolt 8 is tightened, and the locking protrusion 7 in the movable slide groove 6 contacts the nut of the locking bolt 8, which can firmly fix the clamping plate 4 in the new position and prevent the clamping plate 4 from shifting during high-speed rotation. In this way, even if the clamping seat 3 driven by the two clamping cylinders 2 cannot get closer due to the stroke limitation, the operator can manually slide inward and lock the clamping plate 4 before the clamping cylinder 2 is started, so that after the clamping cylinder 2 is driven, the auxiliary roller 5 can effectively contact the outer edge of the ultra-small diameter bottle, thereby providing the necessary radial support for the ultra-small diameter glass bottle, preventing the ultra-small diameter glass bottle from swaying, jumping or uneven rotation speed during rotation printing, ensuring the clarity, continuity and accurate registration of the pattern, and ultimately ensuring excellent printing quality.

[0031] Reference Figures 4-5 In some specific embodiments, the top of the clamping plate 4 is engraved with adjustment scale 24, and the top of the clamping seat 3 is engraved with two alignment lines 26, which are close to the adjacent adjustment scale 24.

[0032] Through the above technical solution, the alignment line 26 on the clamping seat 3 provides a unified reference benchmark for the operator. By adjusting the scales of the two clamping plates 4 to the same relative position as their respective alignment lines 26 (for example, aligning the "0.5" scale with the alignment line 26), it can be ensured that the two auxiliary rollers 5 move the same distance to the clamping interval 25. This allows the center line of the glass bottle to be accurately aligned with the rotation center of the drive unit 10 after the glass bottle is clamped, fundamentally ensuring the accuracy of the printing.

[0033] Reference Figures 3-4In some specific embodiments, a clearance notch 13 is provided on one side of the clamping plate 4. The clearance notch 13 is arc-shaped, and the concave surface of the clearance notch 13 faces the clamping interval 25. The clearance notch 13 is located between the two auxiliary rollers 5.

[0034] Through the above technical solution, the arc-shaped clearance notch 13 opened on one side of the clamping plate 4 ensures that a uniform gap is formed between it and the outer contour of the glass bottle being clamped, thereby preventing the clamping plate 4 from contacting the glass bottle during the rotation of the glass bottle.

[0035] Reference Figures 1-3 In some specific embodiments, the top of the base 1 has two guide grooves 12, and the bottom of the clamping seat 3 is provided with a guide slider 11, which slides in cooperation with the adjacent guide grooves 12.

[0036] Through the above technical solution, when the clamping cylinder 2 is activated, the clamping cylinder 2 pushes the clamping seat 3 to move, and the guide slider 11 slides and engages with the adjacent guide groove 12, so that the guide slider 11 is strictly restricted to slide on the path of the guide groove 12, thereby avoiding the clamping seat 3 from tilting, twisting or jamming due to the eccentricity of the thrust of the clamping cylinder 2, and providing a stable and reliable basic framework for the entire clamping process.

[0037] Reference Figure 6 In some specific embodiments, the drive unit 10 includes a movable support plate 20, and the top of the base 1 is provided with an installation cavity 14. The movable support plate 20 is disposed inside the installation cavity 14. The movable support plate 20 is provided with transmission frames 18 on both sides. The transmission frames 18 are rotatably connected to the inside of the transmission frames 18. The two ends of the first transmission roller 22 are provided with drive rollers 21. The drive rollers 21 are rotatably connected to the inside of the transmission frames 18. The outer diameter of the drive rollers 21 is larger than the outer diameter of the first transmission rollers 22. The drive rollers 21 are located below the clamping interval 25.

[0038] With the above technical solution, when the glass bottle is clamped in the clamping interval 25, one side of the glass bottle will contact the drive roller 21. When the first transmission roller 22 is driven to rotate manually or by an external drive device, since the drive roller 21 is fixed at both ends of the first transmission roller 22 and the outer diameter of the drive roller 21 is larger than the outer diameter of the first transmission roller 22, the drive roller 21 is driven to rotate synchronously by the first transmission roller 22, so that the drive roller 21 drives the glass bottle on it to rotate smoothly through friction.

[0039] Reference Figure 6In some specific embodiments, the top of the movable support plate 20 is provided with a drive frame 16, the interior of the drive frame 16 is rotatably connected to a second transmission roller 17, a drive motor 27 is provided on one side of the drive frame 16, the drive motor 27 drives the second transmission roller 17 to rotate, and the exterior of the first transmission roller 22 and the second transmission roller 17 of the two transmission frames 18 are jointly fitted with a transmission belt 19.

[0040] With the above technical solution, when the drive motor 27 is driven, the drive motor 27 directly drives the second transmission roller 17 to rotate. Since the second transmission roller 17 and the first transmission roller 22 are connected by a shared transmission belt 19, a single drive motor 27 can synchronously drive the two first transmission rollers 22 through a single transmission belt 19, ensuring the absolute synchronicity and consistency of power output, and fundamentally avoiding the twisting or slipping of the glass bottle caused by the asynchrony of multiple drive sources.

[0041] Reference Figure 6 In some specific embodiments, the drive roller 21 is covered with an anti-slip outer sleeve 23, which is elastic.

[0042] Through the above technical solution, when the anti-slip jacket 23 of the drive roller 21 contacts one side of the glass bottle, the anti-slip jacket 23 is elastic, ensuring that a small deformation occurs when it contacts the glass bottle, thereby greatly increasing the effective contact area and static friction, preventing slippage between the drive roller 21 and one side of the glass bottle during high-speed start-up, and ensuring that the rotation speed is synchronized with the output speed of the drive motor 27.

[0043] Reference Figure 3 In some specific embodiments, a lifting cylinder 15 is provided inside the mounting cavity 14, and a movable support plate 20 is mounted on the piston rod of the lifting cylinder 15.

[0044] With the above technical solution, when the diameter of the glass bottle is small, the lifting cylinder 15 is activated, and the lifting cylinder 15 drives the movable support plate 20 to rise, so that the movable support plate 20 drives the drive roller 21 to approach one side of the glass bottle, thereby facilitating the transmission of glass bottles of different diameters.

[0045] Reference Figures 1-4 In some specific embodiments, the clamping seat 3 has an observation port 28 inside, which is connected to the clamping interval 25.

[0046] Through the above technical solution, the operator can directly confirm the contact status between the auxiliary roller 5 and the glass bottle through the observation port 28, ensuring that the glass bottle is stably held and the force is even, fundamentally eliminating the slight eccentricity or jumping caused by poor clamping, thereby improving the printing quality of the glass bottle.

[0047] Reference Figures 1-4 In some specific embodiments, the auxiliary roller 5 is made of wear-resistant material.

[0048] Through the above technical solution, by using wear-resistant material for the auxiliary roller 5, it is ensured that the wear rate is extremely low during long-term, high-speed rolling friction with the rotating glass bottle body, thus maintaining its original size and smooth surface for a long time.

[0049] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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 process, method, article, or apparatus.

Claims

1. A printing machine clamp with an adjustable structure, comprising a base, two clamping cylinders on the top of the base, clamping seats at one end of each clamping cylinder, the two clamping seats being spaced apart to form a clamping gap, and a driving part on the top of the base, the driving part being located below the clamping gap, characterized in that, The clamping seat has slidably connected clamping plates on both sides. Two auxiliary rollers are rotatably connected to one side of each clamping plate. One side of each auxiliary roller protrudes into the clamping interval. The clamping plate has a movable groove inside. The clamping seat has locking holes on both sides. A locking bolt passes through the movable groove. One end of the locking bolt is threaded into the adjacent locking hole. The locking bolt slides in the movable groove. The movable groove has a locking protrusion inside, so that the nut of the locking bolt abuts against the locking protrusion.

2. The printing machine clamp with an adjustable structure according to claim 1, characterized in that, The top of the clamping plate is engraved with adjustment scales, and the top of the clamping seat is engraved with two alignment lines, which are close to the adjacent adjustment scales.

3. A printing machine clamp with an adjustable structure according to claim 1, characterized in that, The clamping plate has an clearance notch on one side. The clearance notch is arc-shaped, and the concave surface of the clearance notch faces the clamping interval. The clearance notch is located between the two auxiliary rollers.

4. A printing machine clamp with an adjustable structure according to claim 1, characterized in that, The base has two guide grooves on its top, and the clamping seat has a guide slider on its bottom. The guide slider slides in cooperation with the adjacent guide grooves.

5. A printing machine clamp with an adjustable structure according to claim 1, characterized in that, The drive unit includes a movable support plate. The top of the base has an installation cavity. The movable support plate is located inside the installation cavity. Transmission frames are provided on both sides of the movable support plate. A first transmission roller is rotatably connected inside the transmission frame. Drive rollers are provided at both ends of the first transmission roller. The drive rollers are rotatably connected to the inside of the transmission frame. The outer diameter of the drive roller is larger than the outer diameter of the first transmission roller. The drive roller is located below the clamping interval.

6. A printing machine clamp with an adjustable structure according to claim 5, characterized in that, The top of the movable support plate is provided with a drive frame, and a second transmission roller is rotatably connected inside the drive frame. A drive motor is provided on one side of the drive frame, and the drive motor drives the second transmission roller to rotate. The first transmission roller and the second transmission roller of the two drive frames are jointly fitted with a transmission belt.

7. A printing machine clamp with an adjustable structure according to claim 6, characterized in that, The drive roller is covered with an anti-slip outer sleeve, which is elastic.

8. A printing machine clamp with an adjustable structure according to claim 6, characterized in that, The installation cavity is equipped with a lifting cylinder, and the movable support plate is mounted on the piston rod of the lifting cylinder.

9. A printing machine clamp with an adjustable structure according to claim 1, characterized in that, The clamping seat has an observation port inside, which is connected to the clamping interval.

10. A printing machine clamp with an adjustable structure according to claim 1, characterized in that, The auxiliary roller is made of wear-resistant material.

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