Ink jet type cloth printing equipment

By using staggered spiral grooves on the outside of the roller and reciprocating limit converters in inkjet fabric printing equipment, the problem of frequent shutdowns and reversals of the inkjet assembly was solved, printing efficiency and equipment lifespan were improved, and high-intensity continuous printing was achieved.

CN224170705UActive Publication Date: 2026-04-28DALANG YISHI KNITTING & PRINTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DALANG YISHI KNITTING & PRINTING CO LTD
Filing Date
2025-06-10
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

In inkjet fabric printing equipment, the frequent stopping and starting of the inkjet components during movement leads to motor wear and high temperatures, affecting the service life of the equipment and printing efficiency.

Method used

The rollers employ staggered spiral grooves and reciprocating limit converters to ensure that the rotary motor rotates in only one direction. This, combined with the reciprocating movement of the inkjet printhead, avoids frequent stops and reversals. The movement of the inkjet printhead is controlled by compression springs and pulse switches.

Benefits of technology

It improves the printing efficiency of the equipment, reduces the temperature of the rotary motor, extends the service life of the equipment, and enables high-intensity continuous printing.

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Abstract

The utility model discloses ink-jet cloth printing equipment, which relates to the technical field of cloth printing and comprises a printer main body, side supports are fixedly connected to two sides of the printer main body, and a reciprocating driving roller is movably connected in the two side supports. Any end of the reciprocating driving roller is in transmission connection with a rotating motor; the reciprocating driving roller comprises a roller shaft, the two ends of the roller shaft are movably connected with the side supports, the end of the rotating motor is in transmission fit with one end of the roller shaft, and two spiral sliding grooves which are arranged in a crossed mode are formed in the outer side of the roller shaft. According to the ink-jet printing device, the spiral sliding grooves which are formed in the roller shaft in a crossed mode are used for guiding the connecting support, so that the connecting support can drive the ink-jet printing head to move on the outer side of the roller shaft in a reciprocating mode, the ink-jet printing head does not need to be stopped for steering in the reciprocating process, and therefore frequent stopping for restarting is not needed; therefore, the rotating motor is prevented from being in a high-temperature working state for a long time.
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Description

Technical Field

[0001] This utility model specifically relates to the field of fabric printing technology, and more specifically to inkjet fabric printing equipment. Background Technology

[0002] Inkjet fabric printing equipment is a device that uses digital technology to spray ink onto fabric to print patterns. The set pattern is controlled by a computer, and micro piezoelectric or thermal foaming technology is used to spray the ink in the print head into the textile in the form of tiny droplets under the action of an electric field or a thermal field. The ink penetrates into the fabric fibers, and the set pattern is restored after the colors are mixed.

[0003] The commonly used digital direct-to-garment printer can print directly on the fabric without the need for transfer paper. It is suitable for a variety of fabrics, such as cotton, linen, silk, and synthetic fibers. Because the ink penetrates directly into the fabric fibers, the printing effect is bright and long-lasting.

[0004] However, in practice, it has been observed that inkjet units generally use lead screws for horizontal movement. During the printing process, the inkjet unit needs to move back and forth, working in conjunction with a gradually moving platform at the bottom to print. When the inkjet unit reaches its limit position, it needs to pause briefly, and the servo motor needs to stop and then reverse. Moreover, the inertia generated during movement requires the motor to decelerate in advance. This frequent turning operation can easily lead to wear on the lead screw, resulting in a reduced service life. Furthermore, the motor requires a large starting torque from a stop to a start, which requires a large current. Therefore, frequent stops and starts can easily keep the motor at a high temperature for a long time, accelerating motor damage and making it impossible to use continuously at high intensity. Utility Model Content

[0005] The purpose of this invention is to provide an inkjet fabric printing device that utilizes staggered spiral grooves on the outer side of the roller shaft to ensure that the rotary motor rotates in only one direction. Combined with symmetrically arranged reciprocating limit converters at both ends, the inkjet printhead can reciprocate without stopping the rotary motor, thereby reducing the temperature of the rotary motor during operation and improving printing efficiency. This addresses the technical problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] The inkjet fabric printing equipment includes a printer body, with side brackets fixedly connected to both sides of the printer body. A reciprocating drive roller is movably connected to the two side brackets, and a rotary motor is driven to either end of the reciprocating drive roller.

[0008] The reciprocating drive roller includes a roller shaft, both ends of which are movably connected to a side support. A rotary motor is fixedly connected to the side of the side support, and the end of the rotary motor is in transmission cooperation with one end of the roller shaft. Two intersecting spiral grooves are provided on the outer side of the roller shaft.

[0009] As a further technical solution of this utility model, a connecting bracket is sleeved on the outer side of the roller shaft, and a limiting sliding column corresponding to the spiral groove is fixedly connected to the inner side of the connecting bracket, and the end of the limiting sliding column is inserted into any one of the spiral grooves.

[0010] As a further technical solution of this utility model, the upper and lower ends of the roller are provided with limiting slide rods that penetrate the side of the connecting bracket, and both ends of the limiting slide rods are fixedly connected to the side bracket. Moreover, the limiting slide rods slide in cooperation with the connecting bracket, and an inkjet printhead is fixedly connected to the end of the connecting bracket away from the limiting slide rod.

[0011] As a further technical solution of this utility model, a reciprocating limit converter is fixedly connected to the side of any of the side brackets, and the reciprocating limit converter includes a groove positioning shell bolted to the side of the side bracket, and the groove positioning shell is also provided with mounting holes.

[0012] As a further technical solution of this utility model, a pulse switch is fixedly connected to the side of the groove positioning shell away from the inkjet printhead, and one end of the pulse switch extends through the mounting hole to the inner side of the groove positioning shell. A contact push plate is provided on the side of the groove positioning shell near the inkjet printhead.

[0013] As a further technical solution of this utility model, a T-shaped limiting rod is symmetrically fixedly connected to the side of the contact push plate near the groove positioning shell, and the end of the T-shaped limiting rod away from the contact push plate passes through the groove positioning shell and slides with the groove positioning shell.

[0014] Each of the aforementioned T-shaped limiting rods is fitted with a compression spring on its outer side. One end of the compression spring contacts the side of the contact push plate, and the other end contacts the inner side of the groove positioning shell.

[0015] As a further technical solution of this utility model, a moving platform is provided below the inkjet printhead, and a translation driver is fixedly connected to the top of the printer body below the moving platform, and the moving platform is horizontally positioned above the printer body.

[0016] As a further technical solution of this utility model, the translation driver includes a mounting bracket bolted to the printer body, and a threaded screw is movably connected to the inner side of the mounting bracket. A servo motor is fixedly connected to the end of the mounting bracket, and the end of the servo motor is in transmission cooperation with either end of the threaded screw.

[0017] As a further technical solution of this utility model, the mounting bracket is symmetrically fixedly connected with guide light rods, and the mounting bracket is also slidably fitted with a sliding connecting seat, wherein the guide light rod is slidably fitted with the sliding connecting seat, and the threaded screw is threadedly fitted with the sliding connecting seat.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. In this utility model, a rotary motor drives a roller to rotate in one direction. The connecting bracket is guided by the intersecting spiral grooves on the roller, so that the connecting bracket can drive the inkjet print head to reciprocate on the outside of the roller. During the reciprocating movement, there is no need to stop the machine to change direction. Therefore, there is no need to stop and restart frequently, thus avoiding the rotary motor from being in a high-temperature working state for a long time. This allows the equipment to perform high-intensity continuous printing work and improves work efficiency.

[0020] 2. In this utility model, both ends of the reciprocating drive roller are equipped with reciprocating limit converters. When the inkjet printhead is about to move to the limit position on either side, the inkjet printhead will push the contact push plate toward the groove positioning shell and compress the compression spring. The compression spring can buffer the inkjet printhead until the connecting bracket moves out of the spiral slide. At this time, the reaction force of the compression spring will apply the opposite thrust to the inkjet printhead until the connecting bracket is pushed into the spiral slide in the opposite direction, thereby causing the inkjet printhead to reciprocate.

[0021] 3. In this utility model, when the inkjet printhead pushes the contact push plate to move towards the groove positioning shell, the contact push plate will also move towards the pulse switch. When the connecting bracket moves out from the end of the spiral slide, the contact push plate will press the end of the pulse switch, and the pulse switch will send a pulse signal. After receiving the pulse signal, the servo motor will rotate a certain angle, thereby causing the sliding connecting seat to move forward a certain distance. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model in use.

[0023] Figure 2 This utility model Figure 1 A schematic diagram of the internal structure.

[0024] Figure 3 This utility model Figure 2 A magnified view of a portion of the image.

[0025] Figure 4 This utility model Figure 2 A partial structural diagram.

[0026] Figure 5 This utility model Figure 4 A magnified view of a portion of the image.

[0027] Figure 6 This is a schematic diagram of the disassembled structure of the reciprocating limit converter in this utility model.

[0028] Figure 7 This utility model Figure 6 Another perspective view.

[0029] In the picture:

[0030] Printer body - 1, semi-open protective cover - 2, rotary motor - 3, moving platform - 4, inkjet printhead - 5, translation driver - 6, sliding connector - 61, threaded screw - 62, guide rod - 63, servo motor - 64, mounting bracket - 65, side bracket - 7, reciprocating limit converter - 8, groove positioning shell - 81, pulse switch - 82, mounting hole - 83, contact push plate - 84, T-shaped limit rod - 85, compression spring - 86, reciprocating drive roller - 9, roller shaft - 91, spiral groove - 92, limit slide bar - 10, connecting bracket - 11. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figure 1-7 This utility model provides an inkjet fabric printing device, including a printer body 1. Side brackets 7 are fixedly connected to both sides of the printer body 1. Reciprocating drive rollers 9 are movably connected to the two side brackets 7, and a rotary motor 3 is driven to any end of the reciprocating drive rollers 9.

[0033] The reciprocating drive roller 9 includes a roller shaft 91, and both ends of the roller shaft 91 are movably connected to the side support 7. The rotary motor 3 is fixedly connected to the side of the side support 7, and the end of the rotary motor 3 is in transmission cooperation with one end of the roller shaft 91. Two intersecting spiral grooves 92 are opened on the outer side of the roller shaft 91.

[0034] Furthermore, a connecting bracket 11 is sleeved on the outer side of the roller 91, and a limiting sliding post corresponding to the spiral groove 92 is fixedly connected to the inner side of the connecting bracket 11, and the end of the limiting sliding post is inserted into any one of the spiral grooves 92.

[0035] By adopting the above technical solution, the rotary motor 3 drives the roller 91 to rotate in one direction. The spiral grooves 92 that are opened at intersections on the roller 91 guide the connecting bracket 11, so that the connecting bracket 11 can drive the inkjet print head 5 to move back and forth on the outside of the roller 91. During the back and forth movement, there is no need to stop the machine to change direction. Therefore, there is no need to stop and restart frequently, thereby avoiding the rotary motor 3 from being in a high-temperature working state for a long time. This allows the equipment to perform high-intensity continuous printing work and improves work efficiency.

[0036] More specifically, both the upper and lower ends of the roller 91 are provided with limiting slide rods 10 that penetrate the side of the connecting bracket 11, and both ends of the limiting slide rods 10 are fixedly connected to the side bracket 7. Moreover, the limiting slide rods 10 and the connecting bracket 11 are slidably engaged. An inkjet printhead 5 is fixedly connected to the end of the connecting bracket 11 away from the limiting slide rods 10.

[0037] Furthermore, each of the side brackets 7 is fixedly connected to a reciprocating limit converter 8, and the reciprocating limit converter 8 includes a grooved positioning shell 81 bolted to the side of the side bracket 7, and the grooved positioning shell 81 is also provided with a mounting hole 83.

[0038] Furthermore, a pulse switch 82 is fixedly connected to the side of the groove positioning shell 81 away from the inkjet printhead 5, and one end of the pulse switch 82 extends through the mounting hole 83 to the inside of the groove positioning shell 81. A contact push plate 84 is provided on the side of the groove positioning shell 81 near the inkjet printhead 5.

[0039] More specifically, the contact push plate 84 is symmetrically fixedly connected to a T-shaped limiting rod 85 on the side near the groove positioning shell 81, and the end of the T-shaped limiting rod 85 away from the contact push plate 84 passes through the groove positioning shell 81 and slides with the groove positioning shell 81.

[0040] Each of the T-shaped limiting rods 85 is fitted with a compression spring 86 on its outer side. One end of the compression spring 86 contacts the side of the contact push plate 84, and the other end contacts the inner side of the groove positioning shell 81.

[0041] By adopting the above technical solution, both ends of the reciprocating drive roller 9 are provided with reciprocating limit converters 8. When the inkjet printhead 5 is about to move to the limit position on either side, the inkjet printhead 5 will push the contact push plate 84 to move closer to the groove positioning shell 81 and compress the compression spring 86. After the compression spring 86 is compressed, it can buffer the inkjet printhead 5 until the connecting bracket 11 is moved out of the spiral slide 92. At this time, the reaction force of the compression spring 86 will apply the opposite thrust to the inkjet printhead 5 until the connecting bracket 11 is pushed into the spiral slide 92 set in the opposite direction, so that the inkjet printhead 5 reciprocates.

[0042] Furthermore, a moving platform 4 is provided below the inkjet printhead 5, and a translation driver 6 is fixedly connected to the top of the printer body 1 below the moving platform 4, and the moving platform 4 is horizontally positioned above the printer body 1.

[0043] Furthermore, the translation driver 6 includes a mounting bracket 65 bolted to the printer body 1, and a threaded screw 62 is movably connected to the inner side of the mounting bracket 65. A servo motor 64 is fixedly connected to the end of the mounting bracket 65, and the end of the servo motor 64 is in transmission engagement with either end of the threaded screw 62.

[0044] Furthermore, the mounting bracket 65 is symmetrically fixedly connected with guide light rods 63, and the mounting bracket 65 is also slidably fitted with a sliding connecting seat 61, wherein the guide light rods 63 are slidably fitted with the sliding connecting seat 61, and the threaded rods 62 are threadedly fitted with the sliding connecting seat 61.

[0045] By adopting the above technical solution, when the inkjet printhead 5 pushes the contact push plate 84 to move towards the groove positioning shell 81, the contact push plate 84 will also move towards the pulse switch 82. When the connecting bracket 11 moves out from the end of the spiral slide 92, the contact push plate 84 will press the end of the pulse switch 82. The pulse switch 82 will send a pulse signal. After receiving the pulse signal, the servo motor 64 will rotate a certain angle, thereby causing the sliding connecting seat 61 to move forward a certain distance.

[0046] Furthermore, a semi-open protective cover 2 is fixedly connected to the top of the printer body 1, and the semi-open protective cover 2 covers the outside of the inkjet printhead 5, respectively shielding the side bracket 7, the limiting slide bar 10 and the inkjet printhead 5, thereby playing a protective role.

[0047] Furthermore, the contact push plate 84 is integrally provided with a boss corresponding to the pulse switch 82 on the side near the groove positioning shell 81, so as to ensure that the end of the pulse switch 82 can be pressed when the contact push plate 84 moves.

[0048] The working principle of this utility model is as follows: In use, the fabric to be printed is first placed above the moving platform 4. Then, the rotating motor 3 drives the roller 91 to rotate in one direction. The connecting bracket 11 is guided by the intersecting spiral grooves 92 on the roller 91. At this time, the limiting sliding post in the connecting bracket 11 is located in one of the spiral grooves 92. The connecting bracket 11 can drive the inkjet printhead 5 to move outside the roller 91. When the inkjet printhead 5 is about to move to the limit position on either side, the inkjet printhead 5 will push the contact push plate 84 towards the groove positioning shell 81 and compress the compression spring 86. The compressed spring 86 can buffer the inkjet printhead 5 until the connecting bracket 11 moves out of the spiral groove 92. At this time, the reaction force of the compression spring 86 will affect the inkjet printhead 5. Applying a counterforce until the connecting bracket 11 is pushed into the reverse-positioned spiral groove 92 causes the inkjet printhead 5 to move in the opposite direction. Repeating the above steps causes the inkjet printhead 5 to reciprocate. When the inkjet printhead 5 pushes the contact push plate 84 to its limit position, the contact push plate 84 will press the end of the pulse switch 82, causing the pulse switch 82 to emit a pulse signal. After receiving the pulse signal, the servo motor 64 will rotate a certain angle, causing the sliding connecting seat 61 to move forward a certain distance. The entire process does not require the rotary motor 3 to stop and turn, thus eliminating the need for frequent stops and restarts. This avoids the rotary motor 3 operating at high temperatures for extended periods, enabling the equipment to perform high-intensity continuous printing work and improving work efficiency. The structure is simple, the operation is very convenient, and it effectively reduces the intensity of manual labor.

[0049] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0050] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An inkjet fabric printing equipment, characterized in that: The printer body (1) includes a printer body (1), and side brackets (7) are fixedly connected to both sides of the printer body (1). Reciprocating drive rollers (9) are movably connected to the two side brackets (7), and a rotary motor (3) is connected to any end of the reciprocating drive rollers (9). The reciprocating drive roller (9) includes a roller shaft (91), and both ends of the roller shaft (91) are movably connected to the side support (7). The rotary motor (3) is fixedly connected to the side of the side support (7), and the end of the rotary motor (3) is driven by one end of the roller shaft (91). Two intersecting spiral grooves (92) are opened on the outer side of the roller shaft (91).

2. The inkjet fabric printing equipment according to claim 1, characterized in that: The roller (91) is sleeved with a connecting bracket (11) on its outer side, and a limiting sliding column corresponding to the spiral groove (92) is fixedly connected to the inner side of the connecting bracket (11), and the end of the limiting sliding column is inserted into any one of the spiral grooves (92).

3. The inkjet fabric printing equipment according to claim 2, characterized in that: The roller (91) is provided with limiting slide rods (10) that pass through the side of the connecting bracket (11) at both the upper and lower ends. Both ends of the limiting slide rods (10) are fixedly connected to the side bracket (7). The limiting slide rods (10) and the connecting bracket (11) are slidably engaged. An inkjet print head (5) is fixedly connected to one end of the connecting bracket (11) away from the limiting slide rods (10).

4. The inkjet fabric printing equipment according to claim 3, characterized in that: Each of the side brackets (7) is fixedly connected to a reciprocating limit converter (8), and the reciprocating limit converter (8) includes a grooved positioning shell (81) bolted to the side of the side bracket (7), and the grooved positioning shell (81) is also provided with mounting holes (83).

5. The inkjet fabric printing equipment according to claim 4, characterized in that: A pulse switch (82) is fixedly connected to the side of the groove positioning shell (81) away from the inkjet printhead (5), and one end of the pulse switch (82) extends through the mounting hole (83) to the inside of the groove positioning shell (81). A contact push plate (84) is provided on the side of the groove positioning shell (81) near the inkjet printhead (5).

6. The inkjet fabric printing equipment according to claim 5, characterized in that: The contact push plate (84) is symmetrically fixedly connected with a T-shaped limiting rod (85) on the side near the groove positioning shell (81), and the end of the T-shaped limiting rod (85) away from the contact push plate (84) passes through the groove positioning shell (81) and slides with the groove positioning shell (81). Each of the T-shaped limiting rods (85) is fitted with a compression spring (86) on its outer side. One end of the compression spring (86) contacts the side of the contact push plate (84), and the other end contacts the inner side of the groove positioning shell (81).

7. The inkjet fabric printing equipment according to claim 3, characterized in that: The inkjet printhead (5) is provided with a moving platform (4) below it. A translation driver (6) is fixedly connected to the top of the printer body (1) below the moving platform (4), and the moving platform (4) is horizontally positioned above the printer body (1).

8. The inkjet fabric printing equipment according to claim 7, characterized in that: The translation driver (6) includes a mounting bracket (65) bolted to the printer body (1), and a threaded screw (62) is movably connected to the inner side of the mounting bracket (65). A servo motor (64) is fixedly connected to the end of the mounting bracket (65), and the end of the servo motor (64) is in transmission engagement with either end of the threaded screw (62).

9. The inkjet fabric printing equipment according to claim 8, characterized in that: The mounting bracket (65) is symmetrically fixedly connected with a guide light rod (63), and the mounting bracket (65) is also slidably fitted with a sliding connecting seat (61). The guide light rod (63) is slidably fitted with the sliding connecting seat (61), while the threaded rod (62) is threadedly fitted with the sliding connecting seat (61).