Winding positioning device for plastic bag printing machine

Abstract

The utility model relates to the technical field of plastic bag printing machines, and one embodiment of the utility model provides a winding positioning device for a plastic bag printing machine, the winding positioning device comprises a bottom plate and a winding roller, the winding roller is arranged on the bottom plate, a support frame is arranged on the bottom plate, a distance adjusting assembly is arranged between the support frame and the bottom plate, and the distance adjusting assembly is arranged on the bottom plate. The limiting assembly is arranged between the winding roller and the supporting frames and comprises a pair of rotating shafts, the rotating shafts are rotationally connected into the supporting frames, supporting bases are arranged at one ends of the rotating shafts, a driving motor is installed on the side surface of the supporting frame on one side, and the output end of the driving motor is connected with the rotating shafts. By means of the technical scheme, the technical problems that in the related technology, the moving positions of the adjusting plates on the two sides cannot be kept consistent during adjustment, it cannot be guaranteed that the winding roller and the discharging port are located at the center to be aligned, and the phenomena of winding deviation and the like occur are solved.

Description

A winding and positioning device for a plastic bag printing machine Technical Field

[0001] The embodiments disclosed herein relate to the field of plastic bag printing machine technology, and more specifically, to a winding and positioning device for a plastic bag printing machine. Background Technology

[0002] Plastic bags are bags made primarily of plastics such as polyethylene, polypropylene, polyester, and nylon. They are essential items in people's daily lives and are often used to hold other items. To increase the variety of plastic bags, patterns are usually printed on them during production. Plastic bag printing machines are generally used for printing plastic bags. Since the dimensions of plastic bags vary from batch to batch, a winding and positioning device is required during the winding process.

[0003] Chinese Patent Publication No. (CN 213140802 U) discloses a winding and positioning device for a plastic bag printing machine, belonging to the technical field of plastic bag printing machines. The technical solution includes a winding device comprising a bracket connected to the printing machine body, a winding roller, and a drive component. Connecting shafts are detachably connected to both ends of the winding roller, and the connecting shafts are rotatably connected to the bracket and the drive component. A limiting device is provided on the bracket, comprising a connecting rod and a limiting plate. The connecting rod is fixedly connected to the bracket, and two limiting plates are provided along the axis of the winding roller. One end of the limiting rod abuts against the winding roller, and the other end is slidably connected to the connecting rod. A locking assembly is provided between the limiting plate and the connecting rod to improve the uniformity of the rolled plastic bags. While these methods improve the quality of plastic bags, they also suffer from poor efficiency in adjusting the winding and positioning. The aforementioned patent involves adjusting the winding and positioning of plastic bags of different sizes by sliding the limiting plate on the outer surface of the connecting rod and fixing the position using a locking assembly. However, this method adjusts the two limiting plates separately, lacking synchronization. Therefore, the movement of the two adjusting plates cannot be kept consistent during adjustment, failing to ensure that the winding roller and the discharge port are aligned in the center, leading to winding offset and other issues. Furthermore, this method makes it difficult to independently select whether to adjust the winding and positioning as needed, reducing the overall practicality of the winding device.

[0004] Therefore, improvements have been made to address the aforementioned issues. Summary of the Invention

[0005] To overcome the above-mentioned defects, the embodiments of this disclosure provide a winding positioning device for a plastic bag printing machine, which solves the technical problem in the related art that the moving positions of the two adjustment plates cannot be kept consistent during adjustment, and the winding roller and the discharge port cannot be guaranteed to be aligned in the center, resulting in winding offset and other phenomena.

[0006] According to one aspect, at least one embodiment of this disclosure provides a winding and positioning device for a plastic bag printing machine, comprising:

[0007] A base plate and a take-up roller, wherein the take-up roller is disposed on the base plate;

[0008] A pair of support frames and a spacing adjustment assembly, wherein the support frames are both mounted on the base plate, and the spacing adjustment assembly is disposed between the support frames and the base plate;

[0009] A limiting component is disposed between the take-up roller and the support frame;

[0010] The limiting component includes a pair of rotating shafts rotatably connected within the support frame. One end of each rotating shaft is provided with a support base, and a drive motor is mounted on one side surface of the support frame. The output end of the drive motor is connected to the rotating shaft.

[0011] As a further technical solution, the take-up roller is supported between the support bases, and telescopic cylinders are provided at both the upper and lower ends of the support frame, with a ring frame connected to the output end of a pair of telescopic cylinders.

[0012] As a further technical solution, the annular frame is located around the outer surface of the take-up roller, and a limiting plate is slidably connected inside the annular frame, with the inner surface of the limiting plate slidably attached to the surface of the take-up roller.

[0013] As a further technical solution, the spacing adjustment component includes a pair of slide rails, both of which are disposed at both ends of the base plate surface. The support frame is slidably connected to the slide rails, and the base plate surface is provided with a bearing seat.

[0014] As a further technical solution, a drive shaft is rotatably connected inside the bearing seat, and an adjusting screw is provided between both ends of the drive shaft and the base plate, wherein the adjusting screw at one end is controlled to rotate by a motor.

[0015] As a further technical solution, the adjusting screws at both ends of the transmission shaft have opposite thread directions.

[0016] As a further technical solution, the surface of the support base protrudes outward, and the circumference of the protruding part of the support base surface is an inclined structural surface.

[0017] As a further technical solution, the annular frame and the output end of the telescopic cylinder are connected by a plug-in connection.

[0018] As a further technical solution, casters are installed at the four corners of the bottom surface of the base plate.

[0019] As a further technical solution, a pair of second cylinders are provided at both ends of the base plate surface, and a stabilizing plate is provided at the output end of the second cylinder.

[0020] The beneficial effects of the embodiments disclosed herein are as follows:

[0021] 1. In this disclosure, the beneficial effect of the limiting component is that the drive motor drives the rotating shaft and the take-up roller to rotate, thereby achieving efficient winding. The telescopic cylinder and the ring frame work together to flexibly adjust the position according to the diameter of the take-up roller. The limiting plate slides in the ring frame and closely fits the take-up roller, effectively preventing the plastic bag from shifting or loosening during winding, and ensuring the neatness and quality of winding.

[0022] 2. The beneficial effect of the spacing adjustment component in this disclosure is that the slide rail provides stable guidance for the support frame, ensuring its smooth movement. The design of the drive shaft and adjusting screw, through the motor driving the adjusting screw to rotate, and using opposite thread directions, enables the two support frames to move synchronously, which can quickly and accurately adjust the spacing between the support frames, adapt to winding rollers of different lengths, ensure that the winding roller is aligned with the center of the discharge port, and improve the accuracy of winding positioning and the applicability of the equipment. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0024] Figure 1 is a schematic diagram of a structure in one embodiment of this disclosure;

[0025] Figure 2 is an isometric view of this disclosure;

[0026] Figure 3 is an isometric sectional view of this disclosure;

[0027] Figure 4 is a partial enlarged view of part A in Figure 3 of this disclosure;

[0028] In the diagram: 1. Base plate; 2. Take-up roller; 3. Support frame; 4. Limiting assembly; 4-1. Rotating shaft; 4-2. Support base; 4-3. Drive motor; 4-4. Telescopic cylinder; 4-5. Ring frame; 4-6. Limiting plate; 5. Spacing adjustment assembly; 5-1. Slide rail; 5-2. Shaft seat; 5-3. Drive shaft; 5-4. Adjusting screw; 6. Moving wheel; 7. Second cylinder; 8. Stabilizing plate. Detailed Implementation

[0029] The present disclosure 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 disclosure and are not intended to limit the scope of the disclosure.

[0030] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0031] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0032] In this disclosure, unless otherwise expressly 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.

[0033] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to 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 disclosure.

[0034] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0035] As shown in Figures 1-4, a winding and positioning device for a plastic bag printing machine according to an embodiment of this disclosure is illustrated, comprising:

[0036] The base plate 1 and the winding roller 2 are mounted on the base plate 1.

[0037] A pair of support frames 3 and a spacing adjustment component 5 are provided. The support frames 3 are both mounted on the base plate 1, and the spacing adjustment component 5 is located between the support frames 3 and the base plate 1.

[0038] Limiting component 4 is disposed between the winding roller 2 and the support frame 3;

[0039] The limiting component 4 includes a pair of rotating shafts 4-1, which are rotatably connected inside the support frame 3. One end of the rotating shaft 4-1 is provided with a support seat 4-2. A drive motor 4-3 is installed on the side surface of one side of the support frame 3. The output end of the drive motor 4-3 is connected to the rotating shaft 4-1. The take-up roller 2 is supported between the support seats 4-2. Telescopic cylinders 4-4 are provided at both the upper and lower ends of the support frame 3. The output ends of the pair of telescopic cylinders 4-4 are connected to an annular frame 4-5. The annular frame 4-5 is located around the outer surface of the take-up roller 2. A limiting plate 4-6 is slidably connected inside the annular frame 4-5. The inner surface of the limiting plate 4-6 is slidably attached to the surface of the take-up roller 2.

[0040] In some examples, the winding process is a crucial step in the production and processing of plastic bags. To ensure that the plastic bags are neat and orderly during winding and to avoid problems such as misalignment or loosening, a limiting component 4 is specifically designed. This component includes a pair of rotating shafts 4-1 rotatably connected within a support frame 3. A drive motor 4-3 is mounted on the side surface of one side of the support frame 3, and its output end is connected to the rotating shafts 4-1, providing power for the entire winding process. When the drive motor 4-3 starts, it drives the rotating shafts 4-1 to rotate, which in turn causes the winding rollers 2, supported between the support seats 4-2 at one end of the rotating shafts 4-1, to begin rotating, thus achieving the winding operation of the plastic bags. The support frame 3 is equipped with telescopic cylinders 4-4 at both ends. The output ends of a pair of telescopic cylinders 4-4 are connected to a ring frame 4-5. The ring frame 4-5 is located around the outer surface of the take-up roller 2. By controlling the extension and retraction of the telescopic cylinders 4-4, the position of the ring frame 4-5 can be adjusted so that it can tightly surround the take-up roller 2. The limiting plate 4-6 is slidably connected inside the ring frame 4-5. It can slide flexibly inside the ring frame 4-5, and its inner surface can be tightly attached to the surface of the take-up roller 2. When the take-up roller 2 is rotating and winding the plastic bag, the limiting plate 4-6 can effectively limit the position of the plastic bag and prevent it from shifting or loosening during the winding process.

[0041] As shown in Figures 1 to 4, this embodiment proposes a spacing adjustment component 5 including a pair of slide rails 5-1. The pair of slide rails 5-1 are both set at both ends of the surface of the base plate 1. The support frame 3 is slidably connected to the slide rails 5-1. The surface of the base plate 1 is provided with a bearing seat 5-2. A transmission shaft 5-3 is rotatably connected inside the bearing seat 5-2. Adjustment screws 5-4 are provided between both ends of the transmission shaft 5-3 and the base plate 1. The adjustment screw 5-4 at one end is controlled to rotate by a motor.

[0042] In some examples, in plastic bag winding equipment, in order to enable the equipment to adapt to winding rollers 2 of different lengths and ensure smooth winding operation, a spacing adjustment component 5 is designed. This component includes a pair of slide rails 5-1 set at both ends of the surface of the base plate 1, which provide guidance and support for the sliding of the support frame 3. The support frame 3 is slidably connected to the slide rails 5-1 and can move linearly along the slide rails 5-1 on the surface of the base plate 1. The bearing seat 5-2 set on the surface of the base plate 1 is internally rotatably connected to the transmission shaft 5-3. The adjustment screws 5-4 set at both ends of the transmission shaft 5-3 and the base plate 1 are the main driving parts. The adjustment screw 5-4 at one end is controlled to rotate by a motor. When the motor starts, it drives the adjustment screw 5-4 to rotate. Since the adjustment screw 5-4 is connected to the transmission shaft 5-3, the two adjustment screws 5-4 will rotate synchronously, achieving the effect of driving the two support frames 3 to move synchronously.

[0043] For example, as shown in Figure 1, the adjusting screws 5-4 at both ends of the drive shaft 5-3 have opposite thread directions.

[0044] In some examples, by using opposite thread directions, the support frame 3 can be controlled to move closer or further away simultaneously, ensuring that the support frame 3 can move while remaining centered.

[0045] For example, as shown in Figure 3, the surface of the support 4-2 protrudes outward, and the circumference of the protruding part of the support 4-2 surface is an inclined structural surface.

[0046] In some examples, the outwardly convex inclined surface structure can support rollers of different diameters and ensure a stable and centered effect.

[0047] For example, as shown in Figure 4, the ring frame 4-5 and the output end of the telescopic cylinder 4-4 are connected by a plug-in connection.

[0048] In some examples, the ring frame 4-5 can be removed and replaced with different sizes to match the different diameters of the take-up roller 2 via a plug-in connection.

[0049] For example, as shown in Figure 1, casters 6 are installed at the four corners of the bottom surface of the base plate 1.

[0050] In some examples, the base plate 1 is moved by providing casters 6.

[0051] For example, as shown in Figure 1, a pair of second cylinders 7 are provided at both ends of the surface of the base plate 1, and a stabilizing plate 8 is provided at the output end of the second cylinders 7.

[0052] In some examples, by providing a second cylinder 7 and a stabilizing plate 8, the second cylinder 7 can control the stabilizing plate 8 to support the ground and maintain a stable state during winding.

[0053] When in actual use: According to the length of the take-up roller 2, start the motor of the spacing adjustment component 5 to drive the adjustment screw 5-4 to rotate. Since the threads of the adjustment screw 5-4 are opposite, the support frame 3 moves closer or further away from the slide rail 5-1 synchronously. After adjusting the spacing, fix it and place the take-up roller 2 on the support base 4-2. Start the drive motor 4-3 to drive the rotating shaft 4-1 and the take-up roller 2 to rotate for winding. At the same time, according to the width of the plastic bag, adjust the position of the ring frame 4-5 through the telescopic cylinder 4-4 so that the limiting plate 4-6 slides in the ring frame 4-5 and fits against the surface of the take-up roller 2 to limit the winding position of the plastic bag. If it is necessary to move the device, use the moving wheel 6 to push it. After reaching the position, start the second cylinder 7 on the surface of the base plate 1 so that the stabilizing plate 8 supports the ground and keeps it stable.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A winding and positioning device for a plastic bag printing machine, characterized in that, include: A base plate (1) and a take-up roller (2), wherein the take-up roller (2) is disposed on the base plate (1); A pair of support frames (3) and a spacing adjustment component (5) are provided. The support frames (3) are both disposed on the base plate (1), and the spacing adjustment component (5) is disposed between the support frame (3) and the base plate (1). A limiting component (4) is disposed between the take-up roller (2) and the support frame (3). The limiting component (4) includes a pair of rotating shafts (4-1). The rotating shafts (4-1) are rotatably connected inside the support frame (3). A support seat (4-2) is provided at one end of the rotating shaft (4-1). A drive motor (4-3) is installed on the side surface of the support frame (3) on one side. The output end of the drive motor (4-3) is connected to the rotating shaft (4-1).

2. The winding and positioning device for a plastic bag printing machine according to claim 1, characterized in that, The take-up roller (2) is supported between the support bases (4-2), and the support frame (3) is provided with telescopic cylinders (4-4) at both the upper and lower ends. The output ends of a pair of telescopic cylinders (4-4) are connected to a ring frame (4-5).

3. The winding and positioning device for a plastic bag printing machine according to claim 2, characterized in that, The annular frame (4-5) is located around the outer surface of the take-up roller (2), and a limiting plate (4-6) is slidably connected inside the annular frame (4-5). The inner surface of the limiting plate (4-6) is slidably attached to the surface of the take-up roller (2).

4. The winding and positioning device for a plastic bag printing machine according to claim 1, characterized in that, The spacing adjustment component (5) includes a pair of slide rails (5-1), both of which are disposed at both ends of the surface of the base plate (1). The support frame (3) is slidably connected to the slide rails (5-1), and the surface of the base plate (1) is provided with a bearing seat (5-2).

5. The winding and positioning device for a plastic bag printing machine according to claim 4, characterized in that, A drive shaft (5-3) is rotatably connected inside the bearing seat (5-2). Both ends of the drive shaft (5-3) are provided with adjusting screws (5-4) between them and the base plate (1). The adjusting screw (5-4) at one end is controlled to rotate by a motor.

6. The winding and positioning device for a plastic bag printing machine according to claim 5, characterized in that, The adjusting screws (5-4) at both ends of the drive shaft (5-3) have opposite thread directions.

7. The winding and positioning device for a plastic bag printing machine according to claim 1, characterized in that, The surface of the support base (4-2) protrudes outward, and the circumference of the protruding part of the support base (4-2) is an inclined structural surface.

8. A winding and positioning device for a plastic bag printing machine according to claim 2, characterized in that, The ring frame (4-5) and the output end of the telescopic cylinder (4-4) are connected by a plug-in connection.

9. A winding and positioning device for a plastic bag printing machine according to claim 1, characterized in that, The base plate (1) is equipped with casters (6) at the four corners of its bottom surface.

10. A winding and positioning device for a plastic bag printing machine according to claim 2, characterized in that, A pair of telescopic cylinders (4-4) are provided at both ends of the surface of the base plate (1), and a stabilizing plate (8) is provided at the output end of the telescopic cylinder (4-4).

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