Automatic cloth centering device for printing apparatus

Abstract

This utility model discloses an automatic fabric alignment device for printing equipment, comprising fabric disposed inside the frame of the printing equipment, and an automatic alignment device body installed on the frame. The automatic alignment device body includes: two sets of fixed bases, respectively fixedly connected to both sides of the frame; and a support assembly fixedly connected to the outside of the frame. This utility model, through a series of structures, can monitor the alignment of the fabric in real time and automatically push the correction roller to change the inclination when the fabric transport direction changes, thus adjusting the fabric transport guide. This allows for timely adjustment of alignment when the fabric transport direction changes, preventing deviation. It eliminates the need for continuous manual adjustment, reducing labor costs and increasing the automation level of the equipment, thereby improving work efficiency and reducing labor intensity and long-term production costs.

Description

Technical Field

[0001] This utility model relates to the field of fabric alignment technology for printing equipment, specifically an automatic fabric alignment device for printing equipment. Background Technology

[0002] With the continuous improvement of social and technological development, printing is becoming increasingly popular, and the printing industry market is expanding. As a result, the requirements for equipment efficiency and automation are constantly increasing. In the past, equipment often deviated during fabric feeding, requiring manual correction of the fabric to ensure that the fabric would not wrinkle due to deviation during feeding, thus affecting the printing quality. This required dedicated personnel to make constant adjustments, increasing the intensity of manual labor and long-term production costs. Utility Model Content

[0003] The purpose of this invention is to provide an automatic fabric centering device for printing equipment to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an automatic fabric centering device for a printing equipment, comprising fabric disposed inside the frame of the printing equipment, wherein an automatic centering device body is mounted on the frame of the printing equipment, and the automatic centering device body comprises:

[0005] The mounting base consists of two sets, which are fixedly connected to both sides of the printing equipment frame;

[0006] The support components are fixedly connected to the outside of the printing equipment frame;

[0007] A centering sensor is fixedly connected to the front side of the support assembly, with the right side of the fabric located inside the centering sensor; the support assembly is used to support the centering sensor; the centering sensor is used to detect and determine whether the fabric is shifting to the left or right using its centerline.

[0008] The swivel-support tilt adjustment assembly is mounted on top of two fixed bases;

[0009] There are two sets of correction rollers installed inside the swivel support tilting assembly. The front end of the fabric passes over the bottom of the rear correction roller and the top of the front correction roller in sequence. The swivel support tilting assembly is used to drive the two correction rollers to tilt back and forth. By tilting the two correction rollers forward or backward, different tension forces are applied to both sides of the fabric. By changing the relative transport direction of the correction rollers, the fabric is transported towards the center.

[0010] Preferably, the support assembly includes two support seats, which are respectively fixedly connected to both sides of the printing equipment frame. The top of the two support seats is connected to the same support rod, and a support sleeve is connected to the outside of the support rod. The centering sensor is fixedly connected to the front side of the support sleeve.

[0011] Preferably, the support rod is fixedly connected to the top of the two support seats by welding, and the support sleeve is fixedly connected to the outside of the support rod by welding.

[0012] Preferably, the support rod is movably connected to the top of the two support seats, and the support sleeve is movably connected to the outside of the support rod.

[0013] Preferably, the top of the support base has an elongated hole, and both sides of the bottom of the support rod have threaded grooves. A first fixing bolt is threaded into the threaded groove. The first fixing bolt consists of a first threaded post and a hexagonal part. The first threaded post is movably inserted into the corresponding elongated hole, and the hexagonal part is pressed tightly against the bottom of the corresponding support base. The inner side of the support sleeve is in movable contact with the outer side of the support rod. A T-shaped screw is pressed tightly against the rear side of the support rod, and a threaded hole for threaded connection with the T-shaped screw is opened on the rear side of the support sleeve.

[0014] Preferably, the swivel support tilting assembly includes two U-shaped seats, which are respectively fixedly connected to the top of corresponding fixed seats. The two U-shaped seats are designed in a figure-eight shape. Two guide rods are fixedly connected between the front and rear inner walls of the U-shaped seats. A cylinder is fixedly installed on the rear side of the left U-shaped seat. A support plate is provided inside the U-shaped plate. Two sliding sleeves are fixedly connected to the bottom of the support plate. The sliding sleeves are slidably fitted on the corresponding guide rods. The extended end of the cylinder extends into the left U-shaped seat and is fixedly installed on the left support plate. A rotating shaft is rotatably installed on the top of the support plate. A rotating seat is fixedly fitted on the rotating shaft. Two correction rollers are rotatably installed between the two rotating seats.

[0015] Preferably, a fixing sleeve is fixedly connected to the bottom of the support plate located on the left side, and a lead screw is fixedly connected to the extended end of the cylinder. Two nuts are threaded on the lead screw, and the sides of the two nuts that are close to each other are pressed into contact with the front and rear sides of the fixing sleeve, respectively.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. By using a centering sensor, support components, swivel adjustment components, U-shaped seat and correction rollers, the system can monitor whether the fabric is centered in real time. When the fabric transport direction changes, it automatically pushes the correction rollers to change the inclination to adjust the fabric transport direction. This allows for timely adjustment of the centering when the fabric transport direction changes, avoiding deviation. It eliminates the need for dedicated manual adjustment, reduces labor costs, improves the automation level of the equipment, and increases work efficiency, thereby reducing labor intensity and long-term production costs.

[0018] 2. By using the support rod, threaded groove, elongated hole, and first fixing bolt, the front-to-back relative position of the centering sensor can be appropriately adjusted at the initial stage; combined with the T-shaped screw, threaded hole, and support sleeve, the left-to-right relative position of the centering sensor can be appropriately adjusted at the initial stage, avoiding errors after installation that may affect its use, and improving the accuracy and flexibility of use.

[0019] This invention features a series of structures that enable real-time monitoring of fabric alignment. When the fabric transport direction changes, it automatically pushes the correction roller to adjust the inclination and guide the fabric transport. This allows for timely alignment adjustments when the fabric transport direction changes, preventing deviations. It eliminates the need for continuous manual adjustments, reducing labor costs and increasing the automation level of the equipment, thereby improving work efficiency and reducing labor intensity and long-term production costs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of an automatic fabric centering device for printing equipment proposed in this utility model;

[0021] Figure 2 This is a partially enlarged structural diagram of the connection between the centering sensor and the support component of an automatic fabric centering device for printing equipment proposed in this utility model.

[0022] Figure 3 This is a schematic diagram of the connecting component of the swivel support skew adjustment assembly and the correction roller of the automatic fabric centering device for printing equipment proposed in this utility model.

[0023] Figure 4 This is a partially enlarged structural diagram of the connecting component of the rotary support slant adjustment assembly and the correction roller of the automatic fabric centering device for printing equipment proposed in this utility model.

[0024] In the diagram: 1. Printing equipment frame; 101. Fabric; 2. Fixed base; 201. Cylinder; 202. Correcting roller; 203. Support plate; 204. Guide rod; 205. Rotating shaft; 206. Rotating seat; 207. Nut; 208. Sliding sleeve; 3. Centering sensor; 301. Support base; 302. Long strip hole; 303. Support sleeve; 304. Support rod. Detailed Implementation

[0025] 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.

[0026] Example 1

[0027] like Figures 1 to 4 As shown, this embodiment proposes an automatic fabric centering device for a printing equipment, including a fabric 101 disposed inside the printing equipment frame 1, and an automatic centering device body installed on the printing equipment frame 1. The automatic centering device body includes:

[0028] The fixing base 2 consists of two sets, which are respectively fixedly connected to both sides of the printing equipment frame 1;

[0029] The support assembly is fixedly connected to the outside of the printing equipment frame 1;

[0030] The centering sensor 3 is fixedly connected to the front side of the support assembly, and the right side of the fabric 101 is located inside the centering sensor 3; the support assembly is used to support the centering sensor 3; the centering sensor 3 is used to detect and determine whether the fabric 101 is shifted to the left or to the right using its centerline detection.

[0031] The swivel support tilting assembly is installed on top of the two fixed seats 2;

[0032] There are two sets of correction rollers 202, which are installed inside the swivel support tilting assembly. The front end of the fabric 101 passes around the bottom of the rear correction roller 202 and the top of the front correction roller 202 in sequence. The swivel support tilting assembly is used to drive the two correction rollers 202 to tilt forward and backward. By tilting the two correction rollers 202 forward or backward, the tension on both sides of the fabric 101 is changed. By changing the relative transport direction of the correction rollers 202, the fabric 101 is transported towards the center.

[0033] Specifically, the support assembly includes two support seats 301, which are fixedly connected to both sides of the printing equipment frame 1. The top of the two support seats 301 is connected to the same support rod 304, and the outside of the support rod 304 is connected to a support sleeve 303. The centering sensor 3 is fixedly connected to the front side of the support sleeve 303. In this embodiment, the support seats 301, the support rod 304 and the support sleeve 303 cooperate to support the support rod 304, the support rod 304 supports the support sleeve 303, and the support sleeve 303 supports the centering sensor 3.

[0034] Furthermore, the support rod 304 is fixedly connected to the top of the two support seats 301 by welding, and the support sleeve 303 is fixedly connected to the outside of the support rod 304 by welding.

[0035] Furthermore, the swivel support tilting assembly includes two U-shaped seats, which are respectively fixedly connected to the top of the corresponding fixed seats 2. The two U-shaped seats are designed in a figure-eight shape. Two guide rods 204 are fixedly connected between the inner walls of the front and rear sides of the U-shaped seats. A cylinder 201 is fixedly installed on the rear side of the left U-shaped seat. A support plate 203 is provided inside the U-shaped plate. Two sliding sleeves 208 are fixedly connected to the bottom of the support plate 203. The sliding sleeves 208 are slidably sleeved on the corresponding guide rods 204. The protruding end of the cylinder 201 extends into the left U-shaped seat and is fixedly installed with the left support plate 203. A fixed sleeve is fixedly connected to the bottom of the left support plate 203. A lead screw is fixedly connected to the protruding end of the cylinder 201. Two nuts 207 are threaded on the lead screw. The sides of the two nuts 207 that are close to each other are respectively connected to the fixed sleeves. The front and rear sides are squeezed together to fix the left support plate 203 to the extended end of the cylinder 201. A rotating shaft 205 is rotatably mounted on the top of the support plate 203. A first bearing is fixedly connected to the top of the support plate 203. The inner ring of the first bearing is fixedly fitted to the outer bottom of the corresponding rotating shaft 205, which achieves the effect of rotating the rotating shaft 205. A rotating seat 206 is fixedly fitted on the rotating shaft 205. Two correction rollers 202 are rotatably mounted between the two rotating seats 206. Two support shafts are fixedly installed between the two rotating seats 206. A circular through hole is opened at one end of the correction roller 202. Two second bearings are fixedly fitted in the circular through hole. The inner ring of the second bearing is fixedly fitted to the outer side of the corresponding support shaft, which achieves the effect of rotating the correction roller 202.

[0036] In this embodiment, a U-shaped seat, cylinder 201, support plate 203, sliding sleeve 208, guide rod 204, rotating shaft 205, and rotating seat 206 work together. Cylinder 201 drives the left support plate 203 to move forward or backward. The left support plate 203 drives the left sliding sleeve 208 to slide forward or backward on the left guide rod 204. The left support plate 203 drives the left rotating seat 206 to move forward or backward via the left rotating shaft 205. The left rotating seat 206 drives the two correction rollers 202 to tilt forward or backward on the left side. Because the two U-shaped seats are designed in a figure-eight shape, and because the shortest distance between two points is a straight line, a pulling phenomenon occurs when the inclination is changed. Therefore, the left rotation... When seat 206 tilts and pulls the two correction rollers 202, the distance between the two sides needs to be changed. At this time, when the left side tilts forward, the two correction rollers 202 pull and drive the rotating seat 206 on the right side to move backward, so as to drive the sliding sleeve 208 on the right side to slide backward on the guide rod 204 on the right side. When the left side tilts backward, the two correction rollers 202 pull and drive the rotating seat 206 on the right side to move forward. This adapts to the length change caused by the change of inclination under the figure-eight design. By tilting the two correction rollers 202 forward or backward, the tension force on the two sides of the fabric 101 is changed. By changing the relative transport direction of the correction rollers 202, the transport direction of the fabric 101 is made to return to the center.

[0037] It should be noted that both the centering sensor 3 and the cylinder 201 are electrically connected to an external drive power supply via flexible wires and can be controlled by a controller, which can be a Keyence KV-N14AT programmable controller. The centering sensor 3 detects in real time whether the fabric 101 is shifting to the left or right and transmits the corresponding signal to the controller. The controller controls the cylinder 201 to start in the corresponding forward or reverse direction according to the built-in program. This is a programming control method well known to those skilled in the art and is a conventional method or common knowledge, so it will not be described in detail here.

[0038] This embodiment can monitor whether the fabric 101 is aligned in real time, and automatically push the correction roller 202 to change the inclination to adjust the transport guide of the fabric 101 when the transport direction of the fabric 101 changes. This allows the fabric 101 to be aligned in time when the transport direction of the fabric 101 changes, avoiding deviation. It eliminates the need for dedicated manual adjustment, reduces labor costs, improves the automation level of the equipment, and increases work efficiency, thereby reducing the intensity of manual labor and long-term production costs.

[0039] The usage method of this embodiment is as follows: The centering sensor 3 uses its centerline to detect and determine whether the fabric 101 is shifting to the left or right in real time, and transmits a corresponding signal to the externally connected controller when shifting to the left or right, so that it controls the cylinder 201 to start in the corresponding forward or reverse direction. The cylinder 201 drives the left support plate 203 to move forward or backward. The left support plate 203 drives the left sliding sleeve 208 to slide forward or backward on the left guide rod 204. The left support plate 203 drives the left rotating seat 206 to move forward or backward through the left rotating shaft 205. The left rotating seat 206 drives the two correction rollers 202 to tilt forward or backward on the left. Since the two U-shaped seats are designed in a figure-eight shape, and since the shortest distance between two points is a straight line, a pulling phenomenon will occur when the inclination is changed. Therefore, when the left rotating seat 206 tilts and pulls the two correction rollers 202, it is necessary to change the distance between the two sides. At this time, under the pull, when the left side tilts forward, the two correction rollers Shaft 202 pulls and drives the right rotating seat 206 to move backward, thereby driving the right sliding sleeve 208 to slide backward on the right guide rod 204. When the left side tilts backward, the two correction rollers 202 pull and drive the right rotating seat 206 to move forward. This adapts to the length changes caused by the change in inclination under the figure-eight design. By tilting the two correction rollers 202 forward or backward, different tension forces are applied to both sides of the fabric 101. By changing the relative transport direction of the correction rollers 202, the transport direction of the fabric 101 is centered. By monitoring whether the fabric 101 is centered in real time, and cooperating with the cylinder 201 to automatically push the correction rollers 202 to change the inclination, the transport guide of the fabric 101 is adjusted in a timely manner when the transport direction of the fabric 101 changes, avoiding deviation. There is no need for special manual adjustment, which reduces labor costs, improves the automation level of the equipment, and increases work efficiency, thereby reducing labor intensity and long-term production costs.

[0040] Example 2

[0041] Reference Figure 2 This embodiment differs from Embodiment 1 in that: the support rod 304 is movably connected to the top of the two support seats 301, the support sleeve 303 is movably connected to the outside of the support rod 304, the top of the support seat 301 has an elongated hole 302, and both sides of the bottom of the support rod 304 have threaded grooves. A first fixing bolt is threaded into the threaded groove. The first fixing bolt consists of a first threaded post and a hexagonal part. The first threaded post is movably inserted into the corresponding elongated hole 302, and the hexagonal part is pressed tightly against the bottom of the corresponding support seat 301. The inner side of the support sleeve 303 is in movable contact with the outer side of the support rod 304, and a T-shaped screw is pressed tightly against the rear side of the support rod 304. A threaded hole for threaded connection with the T-shaped screw is opened on the rear side of the support sleeve 303.

[0042] This embodiment can appropriately adjust the relative positions of the centering sensor 3 in the front-back and left-right directions at the initial stage; it avoids errors after installation that may affect its use, and improves the accuracy and flexibility of use.

[0043] The usage method of this embodiment differs from that of Embodiment 1 in that it also has the following functions: Furthermore, by using the threaded groove, elongated hole 302, and first fixing bolt to fix the support rod 304, personnel can loosen the first fixing bolt with a wrench to release the fixation of the support rod 304. The elongated hole 302 allows the corresponding first fixing bolt to move back and forth, enabling appropriate adjustment of the front-to-back relative position of the centering sensor 3 initially. Additionally, by using a T-shaped screw and threaded hole to fix the support sleeve 303, rotating the T-shaped screw in the reverse direction releases the locking of the support sleeve 303, facilitating lateral adjustment of the support sleeve 303 on the support rod 304. After adjustment, the T-shaped screw can be used to tighten the support rod 304 and lock the support sleeve 303. This further facilitates appropriate adjustment of the left-to-right relative position of the centering sensor 3 initially, avoiding errors after installation that could affect its use, and improving accuracy and flexibility.

[0044] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An automatic fabric centering device for a printing equipment, comprising fabric (101) disposed inside a printing equipment frame (1), wherein the automatic centering device body is mounted on the printing equipment frame (1), characterized in that: The automatic centering device body includes: The fixed base (2) consists of two sets, which are respectively fixedly connected to both sides of the printing equipment frame (1); The support assembly is fixedly connected to the outside of the printing equipment frame (1); The centering sensor (3) is fixedly connected to the front side of the support assembly, and the right side of the fabric (101) is located inside the centering sensor (3); The swivel support tilting assembly is installed on top of the two fixed seats (2); The correction rollers (202) are in two sets and are installed inside the swivel support tilting assembly. The front end of the fabric (101) passes around the bottom of the correction roller (202) on the rear side and the top of the correction roller (202) on the front side in sequence.

2. The automatic fabric centering device for printing equipment according to claim 1, characterized in that: The support assembly includes two support seats (301), which are fixedly connected to both sides of the printing equipment frame (1). The top of the two support seats (301) is connected to the same support rod (304), and the outside of the support rod (304) is connected to a support sleeve (303). The centering sensor (3) is fixedly connected to the front side of the support sleeve (303).

3. The automatic fabric centering device for printing equipment according to claim 2, characterized in that: The support rod (304) is fixedly connected to the top of the two support seats (301) by welding, and the support sleeve (303) is fixedly connected to the outside of the support rod (304) by welding.

4. The automatic fabric centering device for printing equipment according to claim 2, characterized in that: The support rod (304) is movably connected to the top of the two support seats (301), and the support sleeve (303) is movably connected to the outside of the support rod (304).

5. The automatic fabric centering device for printing equipment according to claim 4, characterized in that: The top of the support base (301) is provided with an elongated hole (302), and the bottom sides of the support rod (304) are provided with threaded grooves. A first fixing bolt is threaded into the threaded groove. The first fixing bolt is composed of a first threaded post and a hexagonal part. The first threaded post is movably inserted into the corresponding elongated hole (302), and the hexagonal part is pressed tightly against the bottom of the corresponding support base (301). The inner side of the support sleeve (303) is in movable contact with the outer side of the support rod (304). A T-shaped screw is pressed tightly against the rear side of the support rod (304), and a threaded hole for threaded connection with the T-shaped screw is provided on the rear side of the support sleeve (303).

6. The automatic fabric centering device for printing equipment according to claim 1, characterized in that: The swivel support tilting assembly includes two U-shaped seats, which are respectively fixedly connected to the top of the corresponding fixed seat (2). The two U-shaped seats are designed in a figure-eight shape. Two guide rods (204) are fixedly connected between the inner walls of the front and rear sides of the U-shaped seats. A cylinder (201) is fixedly installed on the rear side of the U-shaped seat on the left side. A support plate (203) is provided inside the U-shaped plate. Two sliding sleeves (208) are fixedly connected to the bottom of the support plate (203). The sliding sleeves (208) are slidably sleeved on the corresponding guide rods (204). The extended end of the cylinder (201) extends into the U-shaped seat on the left side and is fixedly installed on the support plate (203) on the left side. A rotating shaft (205) is rotatably installed on the top of the support plate (203). A rotating seat (206) is fixedly sleeved on the rotating shaft (205). Two correction rollers (202) are rotatably installed between the two rotating seats (206).

7. The automatic fabric centering device for printing equipment according to claim 6, characterized in that: A fixed sleeve is fixedly connected to the bottom of the support plate (203) located on the left side, and a lead screw is fixedly connected to the extended end of the cylinder (201). Two nuts (207) are threaded on the lead screw, and the two nuts (207) are pressed into contact with the front and rear sides of the fixed sleeve respectively.

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