Color paste recovery device of rotary screen printer

Abstract

The utility model relates to a color paste recovery device of a circular screen printer, which comprises a rack, a recovery barrel and a recovery track, the recovery track is used for guiding color paste into the recovery barrel, a scraper is slidably connected in the recovery track, the bottom of the scraper is in contact with the inner wall of the recovery track, and the scraper is connected with a moving assembly. The moving assembly is used for driving the scraper to move in the length direction of the recycling rail, and the scraper is connected with a driving assembly which is used for driving the scraper to move in the vertical direction. The scraper pushes the color paste, the flow speed of the color paste in the recovery track is increased, and the working efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of rotary screen printing machines, and in particular to a color paste recovery device for a rotary screen printing machine. Background Art

[0002] Polyester is a fiber-forming polymer made from purified terephthalic acid (or dimethyl terephthalate) and ethylene glycol through esterification, transesterification, and polycondensation. The fibers, produced through spinning and post-processing, have the greatest advantages of excellent wrinkle resistance and shape retention. During the polyester fabric production process, printing machines are often used to enhance the fabric's aesthetic appeal.

[0003] Chinese patent publication number CN118046665A discloses a rotary screen printing machine comprising a machine body, on which more than one rotary screen printing roller is rotatably mounted. The rollers are arranged at equal intervals along the direction of transport of the polyester fabric. A scraper assembly is removably mounted within the rotary screen printing roller. A recovery track and a collection drum are provided at one end of the rotary screen printing roller. One end of the recovery track is located below the liquid outlet end of the rotary screen printing roller, and the recovery track is used to direct the color paste into the collection drum. A scraper assembly and a flushing assembly are spaced apart along the axial direction of the rotary screen printing roller within the rotary screen printing roller. The scraper assembly is used to scrape off excess color paste from the rotary screen printing roller. This patent application has the following effects: the scraper assembly scrapes the color paste from the rotary screen printing roller, and the color paste enters the collection drum along the recovery track, thereby reducing color paste waste.

[0004] Regarding the above-mentioned related technologies, the texture of the color paste is usually relatively dense, and there is a situation where the flow rate of the color paste on the recovery track is slow, which leads to low recovery efficiency and affects the efficiency of the entire production process. Utility Model Content

[0005] In order to speed up the flow rate of the color paste in the recovery track and improve work efficiency, the present application provides a color paste recovery device for a rotary screen printing machine.

[0006] The present application provides a color paste recovery device for a rotary screen printing machine adopts the following technical solution:

[0007] A color paste recovery device for a rotary screen printing machine includes a frame, a recovery barrel, and a recovery track connected to the frame. The feed end of the recovery track is arranged below the liquid outlet end of the rotary screen body. The recovery track is used to introduce the color paste into the recovery barrel. A scraper is slidably connected to the recovery track. The bottom of the scraper contacts the inner wall of the recovery track. The scraper is slidably connected to the recovery track along the length direction of the recovery track. The scraper is connected to a moving component, and the moving component is used to drive the scraper to move along the length direction of the recovery track. The scraper is connected to a driving component, and the driving component is used to drive the scraper to move in the vertical direction.

[0008] By adopting the above technical solution, when recycling the color paste, the color paste is discharged through the liquid outlet end of the circular screen body and drips into the recovery track. The recovery track guides the color paste into the recovery barrel. When the color paste enters the recovery barrel through the recovery track, the moving component drives the scraper to move back and forth along the length direction of the recovery track, so that the scraper pushes the color paste into the recovery barrel. The scraper pushes the color paste, thereby increasing the flow rate of the color paste in the recovery track and improving work efficiency. When the scraper moves to the recovery track close to one end of the recovery barrel, the driving component drives the scraper to move upward in the vertical direction, so that the scraper is away from the inner wall of the recovery track. The moving component drives the scraper to move along the length direction of the recovery track, and the scraper is away from the inner wall of the recovery track. In this way, the scraper is avoided as much as possible from pushing the color paste away from the recovery barrel when the scraper moves and approaches the circular screen body, thereby facilitating the discharge of the color paste.

[0009] Optionally, a movable groove is opened on the outer wall of one side along the width direction of the recovery track, and the length direction of the movable groove is consistent with the length direction of the recovery track. The movable component includes a screw rod, a slider, and a first motor. The length direction of the screw rod is consistent with the length direction of the recovery track. The screw rod is rotatably connected to the movable groove, the first motor is connected to the recovery track, and the output shaft of the first motor is connected to one end of the screw rod. The slider is threadedly sleeved on the screw rod, and the slider is slidably connected to the movable groove along the length direction of the recovery track, and one end of the scraper is connected to the slider.

[0010] By adopting the above technical solution, the first motor drives the screw to rotate, so that the slider slides along the length direction of the recovery track and is connected to the movable groove. The scraper follows the movement of the slider, thereby driving the scraper to move along the length direction of the recovery track, so that the scraper pushes the color paste, increases the flow rate of the color paste on the recovery track, speeds up the speed of the color paste entering the recovery barrel, and improves work efficiency.

[0011] Optionally, the slider is provided with a lifting groove, the length direction of the lifting groove is consistent with the vertical direction, one end of the scraper is embedded in the lifting groove, the scraper is connected to a lifting block, the lifting block is slidably connected in the lifting groove along the vertical direction, and the driving assembly is used to drive the lifting block to slide in the vertical direction and be connected in the lifting groove.

[0012] By adopting the above technical solution, when in use, the driving component drives the lifting block to slide in the vertical direction and connect to the lifting slot. Under the limiting effect of the lifting slot, the lifting block moves stably in the predetermined direction, and the scraper moves stably in the predetermined direction.

[0013] Optionally, the driving assembly includes a first spring, a pushing block, and a moving part. The length direction of the first spring is consistent with the vertical direction. One end of the first spring is connected to the inner wall of the lifting slot along its length direction, and the other end of the first spring is connected to the bottom of the lifting block. The length direction of the pushing block is consistent with the length direction of the recovery rail. The pushing block is slidably connected to the frame. The moving part is used to drive the pushing block to move along the width direction of the recovery rail. The pushing block is used to push the lifting block and drive the lifting block to embed into the lifting slot. When the scraper cleans the recovery rail, the bottom of the pushing block contacts the top of the lifting block. When the lifting block is embedded in the lifting slot, the bottom of the scraper contacts the inner wall of the recovery rail, and the first spring is squeezed and deformed.

[0014] By adopting the above technical solution, when the scraper contacts the inner wall of the recovery track, the pushing block squeezes the lifting block, so that the lifting block is embedded in the lifting groove, and the lifting block squeezes the first spring, causing the first spring to deform. When the moving assembly drives the scraper to move to the recovery track close to one end of the recovery barrel, the moving part drives the pushing block to move along the width direction of the recovery track and makes the pushing block move away from the lifting block, so that the first spring restores its shape. The first spring pushes the lifting block to move upward in the vertical direction, and the scraper follows the lifting block to move upward in the vertical direction, so that the scraper is away from the inner wall of the recovery track, so as to facilitate the scraper to move to the recovery track close to one end of the circular screen body, and the scraper pushes the color paste away from the recovery barrel.

[0015] Optionally, a first guide surface is provided at the bottom of the pushing block, and a second guide surface is provided at the top of the lifting block close to the pushing block. The first guide surface is inclined and contacts the second guide surface.

[0016] By adopting the above technical solution, the moving part drives the pushing block to move along the width direction of the recovery track, so that the pushing block is close to the lifting block, and the first guide surface contacts the second guide surface. When the pushing block moves along the width direction of the recovery track, it is guided by the first guide surface and the second guide surface. The pushing block drives the lifting block to move downward in the vertical direction, so that the lifting block is embedded in the lifting groove, and the scraper follows the lifting block to move downward in the vertical direction, so that the bottom of the scraper contacts the inner wall of the recovery track, thereby facilitating the scraper to push the color paste into the recovery barrel.

[0017] Optionally, a filter box is connected to the recycling barrel, the top of the filter box is opened, and the bottom of the filter box is provided with a plurality of filter holes.

[0018] By adopting the above technical solution and adding a filter box, impurities in the color paste can be reduced, making it easier to recycle the color paste.

[0019] Optionally, a push rod is rotatably connected inside the filter box, the bottom of the push rod contacts the inner wall of the bottom of the filter box, the length direction of the push rod is consistent with the radial direction of the recovery barrel, and a rotating part is connected inside the recovery barrel, which is used to drive the push rod to rotate.

[0020] By adopting the above technical solution, when the color paste passes through the filter hole, the impurities in the color paste accumulate in the filter box. At the same time, the rotating part drives the push rod to rotate, and the push rod pushes the impurities in the filter box, thereby avoiding the situation where impurities clog the filter hole as much as possible and increasing the speed of the color paste to improve the filter hole.

[0021] Optionally, the rotating member is provided with a second motor, the second motor is connected to the bottom of the recovery barrel, the output shaft of the second motor is connected to a rotating rod, the length direction of the rotating rod is consistent with the vertical direction, the rotating rod is rotatably connected in the recovery barrel, the central axis of the rotating rod is collinear with the central axis of the recovery barrel, the top end of the rotating rod passes through the bottom of the filter box in the vertical direction, the top end of the rotating rod is threadedly sleeved with a mounting cover, and the push rod is connected to the peripheral side of the mounting cover along one end of its length direction.

[0022] By adopting the above technical solution, after long-term use, impurities will adhere to the surface of the push rod. The installation cover can be rotated to keep the installation cover away from the rotating rod, and the push rod can be kept away from the filter box, thereby facilitating the cleaning and replacement of the push rod.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The moving assembly drives the scraper to move back and forth along the length direction of the recovery track, so that the scraper pushes the color paste into the recovery barrel. The scraper pushes the color paste, thereby increasing the flow rate of the color paste in the recovery track and improving work efficiency. When the scraper moves to the recovery track close to one end of the recovery barrel, the driving assembly drives the scraper to move upward in the vertical direction, so that the scraper is away from the inner wall of the recovery track. The moving assembly drives the scraper to move along the length direction of the recovery track, and the scraper is away from the inner wall of the recovery track. This avoids the scraper from moving close to the rotary screen body and pushing the color paste away from the recovery barrel, thereby facilitating the discharge of the color paste.

[0025] 2. The first motor drives the screw to rotate, causing the slider to slide along the length of the recovery track and connect to the movable groove. The scraper follows the movement of the slider, thereby driving the scraper to move along the length of the recovery track. The scraper pushes the colorant, increasing the flow rate of the colorant on the recovery track and accelerating the speed at which the colorant enters the recovery barrel, thereby improving work efficiency.

[0026] 3. When the scraper contacts the inner wall of the recovery track, the pushing block squeezes the lifting block, so that the lifting block is embedded in the lifting groove, and the lifting block squeezes the first spring, causing the first spring to deform. When the moving assembly drives the scraper to move to the recovery track close to one end of the recovery barrel, the moving part drives the pushing block to move along the width direction of the recovery track and makes the pushing block move away from the lifting block, so that the first spring restores its shape. The first spring pushes the lifting block to move upward in the vertical direction, and the scraper follows the lifting block to move upward in the vertical direction, so that the scraper is away from the inner wall of the recovery track, so as to facilitate the scraper to move to the recovery track close to one end of the circular screen body, and the scraper pushes the color paste away from the recovery barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional structural diagram of this embodiment.

[0028] Figure 2 It is a top view of this embodiment.

[0029] Figure 3 This embodiment Figure 2 Enlarged view of part A.

[0030] Figure 4 This embodiment Figure 2 Cross-sectional view along the BB direction.

[0031] Figure 5 This embodiment Figure 1 Magnified view of part D.

[0032] Figure 6 This embodiment Figure 2 Cross-sectional view along CC direction.

[0033] Explanation of the accompanying drawings: 100, frame; 200, recovery barrel; 210, filter box; 211, support ring; 212, filter hole; 220, second motor; 230, rotating rod; 240, mounting cover; 250, liquid outlet pipe; 260, push rod; 300, recovery track; 310, moving groove; 400, moving assembly; 410, screw rod; 420, slider; 421, lifting groove; 422, lifting block; 430, first motor; 500, driving assembly; 510, first spring; 520, push block; 530, first cylinder; 600, scraper. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-6 This application is described in further detail.

[0035] The present application embodiment discloses a color paste recovery device for a rotary screen printing machine. Figure 1 and Figure 2A color paste recovery device for a rotary screen printing machine includes a frame 100, a recovery bucket 200, and a recovery track 300. The recovery track 300 is connected to the frame 100 and has a C-shaped cross-section. One end of the recovery track 300 is positioned below the liquid outlet of the rotary screen body along its length, while the other end of the recovery track 300 is tilted downward. The recovery bucket 200 is open at the top and is located directly below the discharge end of the recovery track 300.

[0036] Reference Figure 1 and Figure 3 A scraper 600 is slidably connected to the recycle track 300. The scraper 600 has a C-shaped cross-section, with the bottom of the scraper 600 in contact with the inner wall of the recycle track 300, and the convex side of the scraper 600 in contact with the inner wall of the recycle track 300. The scraper 600 is connected to a moving assembly 400, which is used to drive the scraper 600 along the length of the recycle track 300. The scraper 600 is also connected to a driving assembly 500, which is used to drive the scraper 600 in a vertical direction.

[0037] When in use, the moving component 400 drives the scraper 600 to slide along the length direction of the recovery track 300 and connect to the recovery track 300, and the driving component 500 drives the scraper 600 to move in the vertical direction, so that the scraper 600 pushes the color paste to move, accelerates the flow rate of the color paste in the recovery track 300, and improves the color paste recovery efficiency.

[0038] Reference Figure 3 and Figure 4 The recovery track 300 is provided with a movable groove 310 on both sides of the outer wall along its width direction, and the length direction of the movable groove 310 is consistent with the length direction of the recovery track 300. The moving assembly 400 includes a screw rod 410, a slider 420, and a first motor 430. The length direction of the screw rod 410 is consistent with the length direction of the recovery track 300. The screw rod 410 is rotated and connected to the corresponding side inner wall of the movable groove 310 at both ends along its length direction. The first motor 430 is connected to the recovery track 300 away from the round net body. The output shaft of the first motor 430 extends along the length direction of the recovery track 300 and passes through the inner wall of one end of the movable groove 310. The output shaft of the first motor 430 is connected to one end of the screw rod 410. The slider 420 is threadedly sleeved on the screw rod 410, and the slider 420 is embedded in the movable groove 310, and the slider 420 is slidably connected in the movable groove 310 along the length direction of the recovery track 300.

[0039] Reference Figure 3 and Figure 4The length of the slider 420 is aligned with the vertical direction. The slider 420 is provided with a lifting slot 421, the depth of which is aligned with the vertical direction. The lifting slot 421 is open at both ends along the width direction of the recovery track 300. A lifting block 422 is slidably connected within the lifting slot 421. The lifting block 422 is slidably connected within the lifting slot 421 along the vertical direction. The scraper 600 is connected to the lifting block 422 along its length, near the end of the recovery track 300. The first motor 430 drives the screw rod 410 to rotate, causing the slider 420 to slide along the length of the recovery track 300 and connect to the movable slot 310. The scraper 600 moves with the slider 420, so that when the colorant is recovered, the scraper 600 pushes the colorant into the recovery bucket 200.

[0040] Reference Figure 4 and Figure 5 , there are two drive assemblies 500, and the drive assemblies 500 correspond one to one with the lifting block 422. The drive assembly 500 includes a first spring 510, a push block 520, and a moving part. The length direction of the first spring 510 is consistent with the vertical direction. The bottom end of the first spring 510 is connected to the bottom inner wall of the lifting groove 421, and the top end of the first spring 510 is connected to the bottom of the lifting block 422. A second guide surface is provided at the top of the lifting block 422, and the second guide surface is a hemispherical surface. The length direction of the push block 520 is consistent with the length direction of the recovery track 300, and the push block 520 is provided on one side of the recovery track 300 along the width direction of the recovery track 300. A first guide surface is provided at the bottom of the push block 520, and the first guide surface is provided at one end of the push block 520 close to the lifting block 422. The first guide surface is inclined, and the first guide surface is in contact with the second guide surface.

[0041] Reference Figure 4 and Figure 5 The moving element is a first cylinder 530, which is connected to the frame 100 and located on the side of the push block 520 away from the lifting block 422. The piston rod of the first cylinder 530 extends along the width of the recovery track 300 and is connected to the push block 520. When the convex side of the scraper 600 contacts the inner wall of the recovery track 300, the bottom of the push block 520 contacts the top of the lifting block 422, and the lifting block 422 is embedded in the lifting groove 421.

[0042] When the scraper 600 pushes the color paste, the lifting block 422 is embedded in the lifting groove 421, and the first guide surface contacts the second guide surface. When the scraper 600 moves to the bottom end of the recovery track 300, the first cylinder 530 drives the pushing block 520 to move along the width direction of the recovery track 300, so that the pushing block 520 moves away from the lifting block 422. The first spring 510 restores its shape and pushes the lifting block 422 to move upward in the vertical direction, so that the scraper 600 follows the lifting block 422 to move, and the scraper 600 moves away from the recovery track 300, so as to avoid the situation where the scraper 600 pushes the color paste away from the recovery barrel 200 when the scraper 600 moves.

[0043] Reference Figure 1 and Figure 6 The bottom of the recovery barrel 200 is connected to a liquid outlet pipe 250, which is used to guide the color paste into the next processing step. The recovery barrel 200 is connected to a filter box 210. The top of the filter box 210 is open, and the central axis of the filter box 210 is collinear with the central axis of the recovery barrel 200. The top of the filter box 210 is connected to a support ring 211, and the central axis of the support ring 211 is collinear with the central axis of the filter box 210. The bottom of the support ring 211 contacts the top of the recovery barrel 200. The filter box 210 is vertically slidably connected to the recovery barrel 200, and the bottom of the filter box 210 is provided with a plurality of filter holes 212.

[0044] Reference Figure 6 A rotating member is connected to the bottom of the recycling bin 200. The rotating member is provided for the second motor 220. The output shaft of the second motor 220 extends vertically upward and is connected to a rotating rod 230. The central axis of the rotating rod 230 is collinear with the central axis of the output shaft of the second motor 220, and the central axis of the rotating rod 230 is collinear with the central axis of the filter box 210. The length of the rotating rod 230 is aligned with the vertical direction. The rotating rod 230 is rotatably connected to the recycling bin 200. The top end of the rotating rod 230 passes through the bottom of the filter box 210 in the vertical direction and is rotatably connected.

[0045] Reference Figure 6 The top of the rotating rod 230 is threadedly mounted with a mounting cap 240. The central axis of the mounting cap 240 is aligned with the central axis of the rotating rod 230, and the bottom of the mounting cap 240 contacts the bottom inner wall of the filter box 210. A push rod 260 is connected to the periphery of the mounting cap 240. The length of the push rod 260 is aligned with the radial direction of the filter box 210. One end of the push rod 260 is connected to the periphery of the mounting cap 240 along its length, and the bottom of the push rod 260 contacts the bottom inner wall of the filter box 210.

[0046] The color paste enters the filter box 210. The impurities in the color paste are reduced through the filtering effect of the filter holes 212, and the impurities are accumulated in the filter box 210. The second motor 220 drives the rotating rod 230 to rotate, so that the installation cover 240 and the push rod 260 rotate along with the rotating rod 230. The push rod 260 pushes the impurities on the bottom inner wall of the filter box 210 to minimize the impurities from clogging the filter holes 212, thereby improving the filtering efficiency of the color paste.

[0047] The implementation principle of the color paste recovery device of a rotary screen printing machine in an embodiment of the present application is as follows: when the color paste is recovered, the color paste drips into the recovery track 300 through the liquid outlet of the rotary screen body, and moves along the recovery track 300 to the recovery barrel 200, and enters the color paste in the recovery barrel 200. The color paste passes through the filter hole 212, thereby reducing impurities in the color paste.

[0048] During operation, the lifting block 422 is embedded in the lifting slot 421 and compresses the first spring 510, causing it to deform and causing the scraper 600 to contact the inner wall of the recovery track 300. As the color paste moves along the recovery track 300, the first motor 430 drives the screw 410 to rotate, causing the slider 420 to slide along the length of the recovery track 300 and connect to the moving slot 310. This allows the scraper 600 to push the color paste, thereby accelerating the movement of the color paste within the recovery track 300 and accelerating the color paste's entry into the recovery bin 200. When the scraper 600 moves to the bottom of the recovery track 300, the first cylinder 530 drives the push block 520 to move along the width of the recovery track 300, moving the push block 520 away from the lifting block 422. The first spring 510 restores its shape and pushes the lifting block 422 to slide vertically into the lifting slot 421. The lifting block 422 moves upward vertically, and the scraper 600 follows the lifting block 422 upward, moving the scraper 600 away from the inner wall of the recovery track 300. After the scraper 600 moves away from the inner wall of the recovery track 300, the moving assembly 400 drives the scraper 600 to move along the length of the recovery track 300, moving the scraper 600 closer to the cylinder body. This minimizes the situation where the scraper 600 pushes the color paste away from the recovery barrel 200 when it moves to the top of the recovery track 300.

[0049] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A color paste recovery device for a rotary screen printing machine, comprising a frame (100), a recovery barrel (200), and a recovery track (300) connected to the frame (100), wherein the feed end of the recovery track (300) is arranged below the liquid outlet end of the rotary screen body, and the recovery track (300) is used to guide the color paste into the recovery barrel (200), characterized in that: A scraper (600) is slidably connected in the recovery track (300), the bottom of the scraper (600) contacts the inner wall of the recovery track (300), and the scraper (600) is slidably connected in the recovery track (300) along the length direction of the recovery track (300). The scraper (600) is connected to a moving component (400), and the moving component (400) is used to drive the scraper (600) to move along the length direction of the recovery track (300). The scraper (600) is connected to a driving component (500), and the driving component (500) is used to drive the scraper (600) to move in a vertical direction.

2. The color paste recovery device for a rotary screen printing machine according to claim 1, characterized in that: The recovery track (300) is provided with a moving groove (310) on an outer wall along one side of the width direction thereof, and the length direction of the moving groove (310) is consistent with the length direction of the recovery track (300). The moving assembly (400) comprises a screw rod (410), a slider (420), and a first motor (430). The length direction of the screw rod (410) is consistent with the length direction of the recovery track (300). The screw rod (410) is rotatably connected to the moving groove (310). The first motor (430) is connected to the recovery track (300), and the output shaft of the first motor (430) is connected to one end of the screw rod (410). The slider (420) is threadedly sleeved on the screw rod (410). The slider (420) is slidably connected to the moving groove (310) along the length direction of the recovery track (300). One end of the scraper (600) is connected to the slider (420).

3. The color paste recovery device for a rotary screen printing machine according to claim 2, characterized in that: The slider (420) is provided with a lifting groove (421), the length direction of the lifting groove (421) is consistent with the vertical direction, one end of the scraper (600) is embedded in the lifting groove (421), the scraper (600) is connected to a lifting block (422), the lifting block (422) is connected to the lifting groove (421) in a sliding manner along the vertical direction, and the driving component (500) is used to drive the lifting block (422) to slide in the vertical direction and be connected to the lifting groove (421).

4. The color paste recovery device for a rotary screen printing machine according to claim 3, characterized in that: The driving assembly (500) includes a first spring (510), a pushing block (520), and a moving part. The length direction of the first spring (510) is consistent with the vertical direction. One end of the first spring (510) is connected to the inner wall of the lifting groove (421) along its length direction. The other end of the first spring (510) is connected to the bottom of the lifting block (422). The length direction of the pushing block (520) is consistent with the length direction of the recovery track (300). The pushing block (520) is slidably connected to the frame (100). The moving part is used to drive the pushing block (520). The block (520) moves along the width direction of the recovery track (300), and the pushing block (520) is used to push the lifting block (422) and drive the lifting block (422) to be embedded in the lifting groove (421). When the scraper (600) cleans the recovery track (300), the bottom of the pushing block (520) contacts the top of the lifting block (422). When the lifting block (422) is embedded in the lifting groove (421), the bottom of the scraper (600) contacts the inner wall of the recovery track (300), and the first spring (510) is squeezed and deformed.

5. The color paste recovery device for a rotary screen printing machine according to claim 4, characterized in that: A first guide surface is provided at the bottom of the pushing block (520), and a second guide surface is provided at the top of the lifting block (422) close to the pushing block (520). The first guide surface is inclined and in contact with the second guide surface.

6. The color paste recovery device for a rotary screen printing machine according to claim 1, characterized in that: A filter box (210) is connected to the recycling barrel (200), the top of the filter box (210) is open, and a plurality of filter holes (212) are provided at the bottom of the filter box (210).

7. The color paste recovery device for a rotary screen printing machine according to claim 6, characterized in that: A push rod (260) is rotatably connected inside the filter box (210), the bottom of the push rod (260) contacts the inner wall of the bottom of the filter box (210), the length direction of the push rod (260) is consistent with the radial direction of the recovery barrel (200), and a rotating member is connected inside the recovery barrel (200), and the rotating member is used to drive the push rod (260) to rotate.

8. The color paste recovery device for a rotary screen printing machine according to claim 7, characterized in that: The rotating member is provided by a second motor (220), the second motor (220) is connected to the bottom of the recovery barrel (200), the output shaft of the second motor (220) is connected to a rotating rod (230), the length direction of the rotating rod (230) is consistent with the vertical direction, the rotating rod (230) is rotatably connected in the recovery barrel (200), the central axis of the rotating rod (230) is colinear with the central axis of the recovery barrel (200), the top end of the rotating rod (230) passes through the bottom of the filter box (210) in the vertical direction, the top end of the rotating rod (230) is threadedly sleeved with a mounting cover (240), and the push rod (260) is connected to the peripheral side of the mounting cover (240) along one end of its length direction.

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