Flat screen printing machine with flattening function for knitted fabric production
By introducing tension rollers, swing frames and press rollers into the flat screen printing machine, the problem of falling off during the printing process of knitted fabric is solved, and an efficient and stable printing process is achieved, which improves production efficiency and product quality.
Patent Information
- Application Number
- CN202422690830.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-05
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-11-05
AI Technical Summary
Knitted fabrics are prone to fall off during the printing process, affecting printing efficiency and quality, and increasing production costs and time costs.
A flat screen printing machine with flattening function is designed, including conveyor belts, tension rollers, swing frames, support rollers and press rollers. Through the tensioning effect of the tension rollers, the flexible support of the swing frame and the rapid flattening of the press rollers, the stable conveying and smoothing of the knitted cloth during the printing process.
It improves the production efficiency and quality of printing, reduces printing failures, reduces defective rates, maintains production continuity and equipment stability, and extends the service life of the equipment.
Smart Images
Figure CN223237185U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of knitwear printing, in particular to a flat screen printing machine with a flattening function for knitted fabric production. Background Art
[0002] In the flat screen printing process of the textile printing and dyeing industry, conveying knitted fabrics on conveyor belts is a common practice. Due to factors such as the dyes and auxiliaries used in the printing process, it is normal for the knitted fabric to stick to the conveyor belt, which helps maintain its position during the printing process. However, when the knitted fabric reaches the conveyor belt exit, it is subjected to a pull that pulls it away from the conveyor belt. During this process, there is a possibility that the knitted fabric will abnormally break free from its bond with the conveyor belt and fall off. This type of fall-off is not inevitable, but if it does occur, it may be because the larger pull area at the exit causes the knitted fabric closest to the conveyor belt exit to exceed its bond strength, causing it to fall off. Once this type of fall-off occurs, it often causes significant printing failures, seriously affecting printing efficiency and quality, and increasing production costs and time. Utility Model Content
[0003] The utility model provides a flat screen printing machine with a flattening function for knitted fabric production, which solves the problem in the related art that the knitted fabric printing process is prone to falling off, thereby affecting the printing efficiency and quality.
[0004] The technical solution of the utility model is as follows:
[0005] A flat screen printing machine with a flattening function for knitted fabric production, used for printing on knitted fabric, comprising:
[0006] A machine body, wherein the machine body has a printing space, and the printing space has an inlet and an outlet;
[0007] A conveyor belt, the conveyor belt is cyclically arranged on the machine body and is used to drive the knitted fabric from the inlet to the outlet;
[0008] A printing hopper is provided on the machine body, is located in the printing space, and is located above the knitted fabric. The printing hopper is used for printing on the knitted fabric.
[0009] As a further technical solution, it also includes:
[0010] A first tensioning roller and a second tensioning roller, wherein the first tensioning roller and the second tensioning roller are respectively located at the inlet and the outlet, the first tensioning roller is used for winding the knitted cloth, and the second tensioning roller is used for supporting the knitted cloth.
[0011] As a further technical solution, it also includes:
[0012] A swing frame, the swing frame is swingably arranged on the machine body and is located at the outlet;
[0013] The supporting roller is rotatably arranged on the swing frame and is located on one side of the second tensioning roller. The supporting roller is parallel to the swing axis of the swing frame. The supporting roller is configured to be driven by the swing frame to swing and is used to roll with or cancel the abutment with the bottom of the knitted fabric. The supporting roller rotates synchronously with the second tensioning roller.
[0014] As a further technical solution, it also includes:
[0015] The pressure roller is rotatably arranged on the swing frame, the pressure roller and the supporting roller are respectively located on both sides of the swing frame, the knitted cloth is used to pass between the pressure roller and the supporting roller, and the pressure roller is configured to be driven by the swing frame to swing and then be used to roll and abut or cancel the abutment with the upper surface of the knitted cloth.
[0016] As a further technical solution, it also includes:
[0017] A first torsion spring, one end of which is arranged on the rotating shaft of the swing frame, and the other end of which is arranged on the machine body, provides a force for the swing frame to swing and reset.
[0018] As a further technical solution, the machine body has a horizontally arranged strip guide groove, and both ends of the rotating shaft of the supporting roller have a cylindrical top, and further includes:
[0019] A slider, the slider being slidably disposed in the strip-shaped guide groove;
[0020] The card is rotatably arranged on the slider, and the slider is configured so that after the swing frame drives the supporting roller to swing, the cylindrical top rolls and abuts against the card, driving the slider to slide and driving the card to rotate at the same time.
[0021] As a further technical solution, it also includes:
[0022] A first elastic member, one end of which is arranged on the slider, and the other end of which is arranged on the side wall of the strip-shaped guide groove, provides a force for the slider to slide toward the swing frame.
[0023] As a further technical solution, the clamp has an arc abutment portion and an inwardly concave notch portion, the arc abutment portion and the inwardly concave notch portion are connected end to end, the cylindrical top abuts against the arc abutment portion and the inwardly concave notch portion in turn, and the cylindrical top is used to limit the resetting of the swing frame after abutting against the arc abutment portion.
[0024] As a further technical solution, it also includes:
[0025] A second torsion spring, one end of which is arranged on the rotating shaft of the clamping member, and the other end of which is arranged on the sliding block, provides a force for the clamping member to rotate and reset.
[0026] As a further technical solution, there are several printing hoppers arranged along the conveying direction of the conveyor belt.
[0027] The working principle and beneficial effects of the utility model are as follows:
[0028] In this utility model, a conveyor belt circulates along the machine body, driving the knitted fabric from the inlet into the printing space. Passing beneath the printing hopper, the hopper prints the knitted fabric, and finally, the conveyor belt delivers the printed fabric from the outlet. The continuous conveying of the conveyor belt and the coordinated operation of the printing hopper achieve continuous and efficient printing, improving production efficiency. The rational layout of the various components within the machine body makes the entire printing machine compact and space-saving. The conveyor belt stably drives the knitted fabric within the printing space, ensuring accurate printing position. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] The preferred embodiments will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.
[0030] Figure 1 This is a schematic diagram of the structure of the utility model;
[0031] Figure 2 for Figure 1 A partial enlarged structural diagram of the middle part;
[0032] Figure 3 This is a schematic diagram of the local structure of the utility model from another perspective.
[0033] In the figure: machine body-1, printing space-101, inlet-102, outlet-103, strip guide groove-104, conveyor belt-2, printing bucket-3, first tensioning roller-4, second tensioning roller-5, swing frame-6, supporting roller-7, cylindrical top-701, pressure roller-8, first torsion spring-9, slider-10, clamping part-11, arc abutting part-1101, concave notch part-1102, first elastic part-12, second torsion spring-13. DETAILED DESCRIPTION
[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without inventive work.
[0035] To simplify the drawings, only the parts relevant to the utility model are schematically shown in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one of the components with the same structure or function is schematically shown or labeled. In this document, "one" not only means "only one" but also "more than one," and "several" includes "two" and "more than two."
[0036] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.
[0037] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.
[0038] Reference Figures 1 to 3 An embodiment of the present utility model proposes a flat screen printing machine with a flattening function for knitted fabric production, which is used for printing on knitted fabric. The machine body 1 has a printing space 101, and the printing space 101 has an entrance 102 and an exit 103; a conveyor belt 2 is arranged on the machine body 1 for circular conveying, and is used to drive the knitted fabric from the entrance 102 to the exit 103; a printing hopper 3 is arranged on the machine body 1, located in the printing space 101, and above the knitted fabric, and the printing hopper 3 is used for printing on the knitted fabric.
[0039] In this embodiment, the conveyor belt 2 circulates on the machine body 1, driving the knitted fabric from the inlet 102 into the printing space 101. As it passes beneath the printing hopper 3, the hopper prints the knitted fabric. Finally, the conveyor belt 2 delivers the printed knitted fabric from the outlet 103. The continuous transport of the conveyor belt 2 and the coordination of the printing hopper 3 enable continuous and efficient printing operations, improving production efficiency. The rational layout of the various components on the machine body 1 makes the entire printing machine compact and space-saving. The conveyor belt 2 stably drives the knitted fabric within the printing space 101, ensuring accurate printing placement.
[0040] Furthermore, it includes a first tensioning roller 4 and a second tensioning roller 5, which are respectively located at the inlet 102 and the outlet 103. The first tensioning roller 4 is used to wind the knitted fabric, and the second tensioning roller 5 is used to support the knitted fabric.
[0041] In this embodiment, during the printing process, the conveyor belt 2 drives the knitted fabric to move. When the knitted fabric enters the entrance 102, the first tensioning roller 4 winds the knitted fabric, which plays a role of preliminary tensioning and guiding. When the knitted fabric reaches the exit 103, the second tensioning roller 5 supports the knitted fabric to ensure that the knitted fabric is output smoothly. The tensioning effect of the tensioning roller keeps the knitted fabric flat during the printing process, improving the accuracy and quality of the printing. The first tensioning roller 4 and the second tensioning roller 5 play a role at the entrance 102 and exit 103 respectively, ensuring the stability of the knitted fabric transportation. It effectively prevents the knitted fabric from becoming loose, wrinkled, and other problems at the entrance 102 and exit 103, reducing the probability of printing failures. It can adapt to knitted fabrics of different thicknesses and materials, thereby improving the versatility of the printing machine.
[0042] Furthermore, it also includes a swing frame 6 swingingly set on the machine body 1, located at the outlet 103; the supporting roller 7 is rotatably set on the swing frame 6, located on one side of the second tensioning roller 5, and the supporting roller 7 is parallel to the swing axis of the swing frame 6. The supporting roller 7 is configured to be driven by the swing frame 6 to swing and is used to roll with or cancel the abutment with the bottom of the knitted fabric. The supporting roller 7 rotates synchronously with the second tensioning roller 5.
[0043] In this embodiment, during the printing process, when the knitted fabric reaches the outlet 103, the swing frame 6 drives the supporting roller 7 to swing so that it rolls and abuts against the bottom of the knitted fabric. The supporting roller 7 rotates synchronously with the second tensioning roller 5 to provide additional support and conveying force for the knitted fabric. When necessary, the swing frame 6 drives the supporting roller 7 to swing to cancel the abutment. The abutment and synchronous rotation of the supporting roller 7 enhance the conveying stability of the knitted fabric at the outlet 103 and reduce the possibility of falling off. The setting of the swing frame 6 enables the supporting roller 7 to flexibly abut or cancel the abutment with the knitted fabric according to actual conditions, adapting to different production needs. It further flattens the knitted fabric, ensures that the knitted fabric is output flatly, and improves product quality.
[0044] Furthermore, it also includes a pressure roller 8 rotatably set on the swing frame 6, the pressure roller 8 and the supporting roller 7 are respectively located on both sides of the swing frame 6, the knitted cloth is used to pass between the pressure roller 8 and the supporting roller 7, and the pressure roller 8 is configured to be driven by the swing frame 6 to swing and be used to roll and abut or cancel the abutment with the upper surface of the knitted cloth.
[0045] In this embodiment, during the printing process, during the normal printing process, the pressure roller 8 is in a state of not contacting the knitted fabric. When an abnormal situation occurs in which the knitted fabric is lifted up from the conveyor belt 2 on a large scale, the swing frame 6 drives the pressure roller 8 to swing rapidly, so that the pressure roller 8 rolls and contacts the upper surface of the knitted fabric. The knitted fabric passes between the pressure roller 8 and the support roller 7, and the lifted knitted fabric is flattened again and conveyed stably through the coordinated action of the pressure roller 8 and the support roller 7. It can accurately deal with the problem of the knitted fabric being lifted up on a large scale and quickly restore the normal conveying state. Correct the abnormality in time, reduce the defective rate of printing caused by the lifting of the knitted fabric, and ensure product quality. Avoid production interruptions caused by large-scale lifting, maintain production continuity, and improve overall efficiency. Reduce the regular wear of the pressure roller 8, and avoid the occurrence of blurred fabric patterns caused by continuous contact with the surface of the knitted fabric.
[0046] Furthermore, a first torsion spring 9 is provided with one end on the rotating shaft of the swing frame 6 and the other end on the machine body 1 to provide a force for the swing frame 6 to swing and reset.
[0047] In this embodiment, under normal circumstances, the pressure roller 8 does not abut against the knitted fabric. When the knitted fabric is lifted up over a large area, the swing frame 6 drives the pressure roller 8 and the support roller 7 to swing to flatten the knitted fabric. After the processing is completed, under the action of the first torsion spring 9, the swing frame 6 swings and resets, so that the pressure roller 8 and the support roller 7 return to their initial positions. The first torsion spring 9 enables the swing frame 6 to automatically reset after completing the abnormal processing, ready to deal with the next abnormal situation that may occur. Ensure that the swing frame 6 can respond quickly when needed, and improve the working efficiency of the equipment. Helps to maintain the stability of the swing frame 6 in normal working conditions and reduce unnecessary shaking. Reduces component wear that may be caused by the failure of the swing frame 6 to reset in time, and extends the service life of the equipment.
[0048] Furthermore, the body 1 has a horizontally arranged strip guide groove 104, and both ends of the rotating shaft of the supporting roller 7 have a cylindrical top 701, and also includes a slider 10 slidably set in the strip guide groove 104; the clamping member 11 is rotatably set on the slider 10, and the slider 10 is configured so that after the swing frame 6 drives the supporting roller 7 to swing, the cylindrical top 701 rolls and abuts against the clamping member 11, driving the slider 10 to slide, and at the same time driving the clamping member 11 to rotate.
[0049] In this embodiment, when the knitted fabric is lifted over a large area, the swing frame 6 drives the support roller 7 to swing. The support roller 7 rolls against the clamping member 11, driving the slider 10 to slide within the strip guide groove 104 and simultaneously rotating the clamping member 11. At this point, the support roller 7 loses its support effect, causing the pull on the knitted fabric to momentarily relax and the pull angle to become more gradual. The clamping member 11 functions to maintain the support roller 7 in the unsupported state for a period of time. After the knitted fabric pull automatically returns to normal, the swing frame 6, under the action of the first torsion spring 9, drives the support roller 7 back to its original position. This instantaneous relaxation and the more gradual pull angle reduce damage to the knitted fabric and ensure product quality. The pull state can be automatically restored to normal without manual intervention, improving production efficiency. This ensures a smoother pull process at the outlet 103, optimizing the printing process and reducing the risk of equipment failure and production interruption caused by excessive or improper pull.
[0050] Furthermore, a first elastic member 12 is provided at one end on the slider 10 and at the other end on the side wall of the strip guide groove 104 to provide a force for the slider 10 to slide toward the swing frame 6 .
[0051] In this embodiment, the clamping member 11 maintains the support roller 7 in the unsupported state for a period of time. After the knitted fabric pulling state automatically returns to normal, the swing frame 6, under the combined action of the first torsion spring 9 and the first elastic member 12, drives the support roller 7 to return to its original position. The slider 10, also under the tension of the first elastic member 12, slides toward the swing frame 6. The first elastic member 12 and the first torsion spring 9 work together to more quickly return the swing frame 6 and slider 10 to their original position, improving the device's responsiveness. The first elastic member 12 provides a stable sliding force for the slider 10, ensuring smooth and reliable sliding of the slider 10 within the strip guide groove 104.
[0052] Furthermore, the clamp 11 has an arc abutment portion 1101 and an indented notch portion 1102, the arc abutment portion 1101 and the indented notch portion 1102 are connected end to end, and the cylindrical top 701 abuts against the arc abutment portion 1101 and the indented notch portion 1102 in turn, and after the cylindrical top 701 abuts against the arc abutment portion 1101, it is used to limit the resetting of the swing frame 6.
[0053] In this embodiment, when the knitted fabric is lifted over a large area, the swing frame 6 drives the supporting roller 7 to swing. The supporting roller 7 first contacts the arc abutment portion 1101 of the clamping member 11, and the arc abutment portion 1101 restricts the swing frame 6 from resetting. As the supporting roller 7 continues to move, it enters the concave notch 1102. At this time, the limiting effect is canceled. Under the action of the first torsion spring 9 and the first elastic member 12, the swing frame 6 drives the supporting roller 7 to reset. The limit can be released after a stable interval, allowing the swing frame 6 to reset in time, thereby improving production efficiency. This helps to optimize the entire pulling and resetting process and enhance the stability of the printing process. A stable and reliable reset mechanism reduces equipment failures and improves the operational reliability of the equipment.
[0054] Furthermore, a second torsion spring 13 is included, one end of which is arranged on the rotation axis of the clamping member 11, and the other end is arranged on the slider 10, to provide a force for the clamping member 11 to rotate and reset.
[0055] In this embodiment, when the knitted fabric is lifted up over a large area, the swing frame 6 drives the supporting roller 7 to swing, and the supporting roller 7 first contacts the arc abutment portion 1101 of the clamping member 11, restricting the swing frame 6 from resetting. As the supporting roller 7 moves into the concave notch portion 1102, the swing frame 6 is reset, and at the same time, the second torsion spring 13 rotates and resets the clamping member 11. The second torsion spring 13 ensures that the clamping member 11 can automatically rotate and reset, preparing for the next action. The time and operation required for manual or other intervention to reset the clamping member 11 are reduced, thereby improving production efficiency. Ensuring that the clamping member 11 can return to its initial position every time contributes to the stable operation of the equipment. Abnormal wear that may be caused by the failure to reset the clamping member 11 in time is avoided, thereby extending its service life.
[0056] Furthermore, there are multiple printing hoppers 3 arranged along the conveying direction of the conveyor belt 2 .
[0057] In this embodiment, during the printing process, the conveyor belt 2 drives the knitted fabric, and multiple printing hoppers 3 arranged along the conveyor direction sequentially print the knitted fabric. If a large area of the knitted fabric is lifted, the swing frame 6 drives the support roller 7 to swing, cooperating with the clamping member 11 to achieve the corresponding action.
[0058] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.
Claims
1. A flat screen printing machine with a flattening function for knitted fabric production, used for printing on knitted fabric, characterized in that: include: A machine body (1), the machine body (1) having a printing space (101), the printing space (101) having an inlet (102) and an outlet (103); a conveyor belt (2), the conveyor belt (2) being arranged on the machine body (1) for cyclic conveying and used for driving the knitted fabric to be transported from the inlet (102) to the outlet (103); A printing hopper (3) is provided on the machine body (1), is located in the printing space (101), and is located above the knitted fabric. The printing hopper (3) is used for printing on the knitted fabric.
2. A flat screen printing machine with a flattening function for knitted fabric production according to claim 1, characterized in that: Also includes: A first tensioning roller (4) and a second tensioning roller (5), wherein the first tensioning roller (4) and the second tensioning roller (5) are respectively located at the inlet (102) and the outlet (103), the first tensioning roller (4) is used to wind the knitted fabric, and the second tensioning roller (5) is used to support the knitted fabric.
3. A flat screen printing machine with a flattening function for knitted fabric production according to claim 2, characterized in that: Also includes: A swing frame (6), the swing frame (6) being swingably arranged on the machine body (1) and located at the outlet (103); A supporting roller (7) is rotatably arranged on the swing frame (6) and is located on one side of the second tensioning roller (5). The supporting roller (7) is parallel to the swing axis of the swing frame (6). The supporting roller (7) is configured to be driven by the swing frame (6) to swing and is used to roll with or cancel the abutment with the bottom of the knitted fabric. The supporting roller (7) rotates synchronously with the second tensioning roller (5).
4. A flat screen printing machine with a flattening function for knitted fabric production according to claim 3, characterized in that: Also includes: A pressure roller (8), the pressure roller (8) is rotatably arranged on the swing frame (6), the pressure roller (8) and the supporting roller (7) are respectively located on both sides of the swing frame (6), the knitted cloth is used to pass between the pressure roller (8) and the supporting roller (7), and the pressure roller (8) is configured to be driven by the swing frame (6) to swing and then be used to roll with or cancel the abutment with the upper surface of the knitted cloth.
5. The flat screen printing machine with flattening function for knitted fabric production according to claim 3, characterized in that: Also includes: A first torsion spring (9), one end of which is arranged on the rotating shaft of the swing frame (6) and the other end of which is arranged on the machine body (1), provides a force for the swing frame (6) to swing and reset.
6. A flat screen printing machine with a flattening function for knitted fabric production according to claim 3, characterized in that: The machine body (1) has a horizontally arranged strip guide groove (104), and both ends of the rotating shaft of the supporting roller (7) have a cylindrical top (701), and further includes: A slider (10), the slider (10) being slidably disposed in the strip-shaped guide groove (104); A clamping member (11) is rotatably arranged on the slider (10), and the slider (10) is configured such that after the swing frame (6) drives the supporting roller (7) to swing, the cylindrical top (701) rolls and abuts against the clamping member (11), driving the slider (10) to slide and simultaneously driving the clamping member (11) to rotate.
7. A flat screen printing machine with a flattening function for knitted fabric production according to claim 6, characterized in that: Also includes: A first elastic member (12), one end of the first elastic member (12) is arranged on the slider (10), and the other end is arranged on the side wall of the strip guide groove (104), providing a force for the slider (10) to slide in a direction close to the swing frame (6).
8. The flat screen printing machine with flattening function for knitted fabric production according to claim 6, characterized in that: The clamping member (11) has an arcuate abutting portion (1101) and an indented notch portion (1102), the arcuate abutting portion (1101) and the indented notch portion (1102) being connected end to end, the cylindrical top portion (701) abuts against the arcuate abutting portion (1101) and the indented notch portion (1102) in sequence, and the cylindrical top portion (701) abuts against the arcuate abutting portion (1101) to limit the resetting of the swing frame (6).
9. The flat screen printing machine with flattening function for knitted fabric production according to claim 6, characterized in that: Also includes: A second torsion spring (13), one end of which is arranged on the rotation axis of the clamping member (11), and the other end of which is arranged on the slider (10), provides a force for rotating and resetting the clamping member (11).
10. The flat screen printing machine with flattening function for knitted fabric production according to claim 1, characterized in that: There are a plurality of printing hoppers (3) arranged along the conveying direction of the conveyor belt (2).