Plastic barrel screen printing machine

Abstract

The utility model relates to the technical field of plastic barrel production, and discloses a plastic barrel screen printing machine, which solves the problem that a doctor blade is inconvenient to replace at present, and comprises a rack, a printing mechanism is arranged on the rack, the printing mechanism comprises a mounting plate positioned on the outer side of the rack, and a top plate is placed at the top of the mounting plate; a knife rest is fixedly connected to the bottom of the top plate, a doctor blade is fixedly connected to the bottom of the knife rest, a through groove is formed in the mounting plate, the knife rest penetrates through the through groove, two positioning columns are fixedly connected to the top of the mounting plate, and the through groove is located between the two positioning columns; according to the utility model, through cooperation between the supporting shaft and the limiting plate, rotation of the limiting plate is facilitated, through cooperation between the stand column and the movable plate and cooperation between the spring and the connecting column, the square block can be conveniently inserted into the square groove, the limiting plate can be fixed when being sleeved in the U-shaped frame, and the limiting plate can also be fixed when being abutted against the stand column; and therefore, the doctor blade is convenient to replace.

Description

Technical Field

[0001] The utility model belongs to the technical field of plastic bucket production, and specifically relates to a screen printing machine for plastic buckets. Background Technique

[0002] A screen printing machine is a machine that uses a screen printing plate for printing. It belongs to a type of printing machine. A screen printing machine is a machine for printing text and images, and is a general term for machines or equipment used to produce printed matter. A screen printing machine belongs to a relatively representative printing device among stencil printing machines. The materials for making the screen can be nylon filaments, copper wires, steel wires, or stainless steel wires in addition to real silk. It can be divided into flat screen printing machines, curved screen printing machines, rotary screen printing machines, etc. When printing on the surface of a plastic bucket, the plastic bucket is sleeved on a roller, the roller is lifted to the screen, and screen printing ink is placed in the screen frame. A rubber squeegee is used to scrape and press on the screen frame. At this time, the ink passes through the permeable mesh holes and prints the text and images on the outer surface of the plastic bucket; according to the patent document with the authorization announcement number: CN214324548U, named "A clamping operation platform for producing plastic buckets by a screen printing machine", it includes a printing machine box body. The upper part of the front end of the printing machine box body is provided with a driving groove. The lower inner wall of the driving groove is fixed with a concave plate. The top of the concave plate is slidably connected with a sliding plate. A driving mechanism is arranged on the upper side of the sliding plate. The driving mechanism is connected to the sliding plate to realize its left-right linear motion. The front part of the lower end of the sliding plate is fixed with a scraping knife. The front end of the concave plate is fixed with two support plates. The lower ends of the two support plates are fixed with a screen frame. The front end of the printing machine box body is fixed with a fixed box. The upper end of the fixed box is open. Four electric push rods are fixed at the four corners of the lower inner wall of the fixed box. The upper ends of the four electric push rods are all fixed with a bottom plate. The rear end of the bottom plate is fixed with a rear fixing plate. The front end of the rear fixing plate is fixed with a first motor. The circumferential surface of the output end of the first motor is fixed with a support roller. Four groups of clamping mechanisms are arranged outside the support roller; each group of clamping mechanisms includes a spring groove, an L-shaped clamping block, and a second spring. The spring groove is opened at the rear part of the circumferential surface of the support roller. The second spring is fixed on the lower inner wall of the spring groove. The L-shaped clamping block is fixed at the other end of the second spring and is slidably connected in the spring groove; however, there are still the following defects:

[0003] Its scraping knife is fixed at the front part of the lower end of the sliding plate. Therefore, it is inconvenient to replace the scraping knife when it is damaged. Summary of the Utility Model

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a screen printing machine for plastic buckets, which effectively solves the problem that it is inconvenient to replace the scraping knife at present.

[0005] To achieve the above object, the utility model provides the following technical solution: a screen printing machine for plastic barrels, including a frame, on which a printing mechanism is provided;

[0006] The printing mechanism includes a mounting plate located outside the frame. On the top of the mounting plate, a top plate is placed. At the bottom of the top plate, a knife holder is fixedly connected. At the bottom of the knife holder, a squeegee is fixedly connected. A through groove is provided on the mounting plate. The knife holder penetrates through the through groove. Two positioning columns are fixedly connected to the top of the mounting plate. The through groove is located between the two positioning columns. The top plate is movably sleeved outside the two positioning columns.

[0007] Preferably, a side block is fixedly connected to the outside of the mounting plate. At the top of the side block, a support shaft is rotatably connected. At the top end of the support shaft, a limiting plate is fixedly connected. A U-shaped frame is fixedly connected to the top of the top plate. The U-shaped frame is sleeved outside the limiting plate.

[0008] Preferably, a column is fixedly connected to the top of the side block. At the top end of the column, a fixing plate is fixedly connected. A movable plate is movably sleeved outside the column. At the top of the movable plate, a U-shaped pull rod is fixedly connected. The U-shaped pull rod penetrates through the fixing plate and is movably connected to the fixing plate. A spring is fixedly connected between the movable plate and the fixing plate. The spring is sleeved outside the column. At the bottom of the movable plate, a connecting column is fixedly connected. At the bottom end of the connecting column, a square block is fixedly connected. A square groove is provided on the top of the limiting plate. The square block is inserted into the square groove.

[0009] Preferably, a U-shaped round rod is fixedly connected to the outside of the frame. The mounting plate is movably sleeved outside the U-shaped round rod.

[0010] Preferably, a motor is fixedly installed inside the frame. A screw rod is fixedly connected to the motor. The end of the screw rod away from the motor is rotatably connected to the frame. A nut sleeve is threadedly sleeved outside the screw rod. The mounting plate is fixed to the outside of the nut sleeve.

[0011] Preferably, a screen frame is fixedly installed on the outside of the frame below the squeegee. Two connecting plates are symmetrically and fixedly connected between the top of the screen frame and the frame.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) In the utility model, through the cooperation between the support shaft and the limiting plate, it is convenient for the limiting plate to rotate. And through the cooperation between the column, the movable plate, the spring and the connecting column, it is convenient for the square block to be inserted into the square groove, which can fix the limiting plate when it is sleeved in the U-shaped frame and can also fix the limiting plate when it abuts against the column, so as to facilitate the replacement of the squeegee;

[0014] (2) Through the cooperation between the motor, the screw sleeve and the screw rod, it is convenient for the mounting plate to slide along the U-shaped round rod, and then the scraping knife can move left and right to squeeze the ink through the screen frame onto the circumferential surface of the plastic bucket, so as to facilitate scraping and leveling the ink on the screen frame and printing it onto the surface of the plastic bucket. Brief Description of the Drawings

[0015] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model.

[0016] In the drawings:

[0017] Figure 1 is a schematic structural diagram of the plastic bucket screen printing machine of the present utility model;

[0018] Figure 2 is a schematic structural diagram of the printing mechanism of the present utility model;

[0019] Figure 3 is a schematic structural diagram of the mounting plate of the present utility model;

[0020] Figure 4 is a disassembled structural diagram of the mounting plate and the top plate of the present utility model;

[0021] Figure 5 is a disassembled structural diagram of the column and the limiting plate of the present utility model.

[0022] In the figure: 1, frame; 2, printing mechanism; 201, mounting plate; 202, scraping knife; 203, knife rest; 204, U-shaped round rod; 205, screw rod; 206, screw sleeve; 207, motor; 208, side block; 209, support shaft; 2010, column; 2011, limiting plate; 2012, U-shaped frame; 2013, top plate; 2014, through groove; 2015, positioning column; 2016, square block; 2017, square groove; 2018, connecting column; 2019, spring; 2020, U-shaped pull rod; 2021, fixing plate; 2022, movable plate; 3, screen frame; 4, connecting plate. Detailed Embodiment

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments; based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0024] Embodiment 1, consisting of Figure 1Given that, the utility model includes a frame 1, and a printing mechanism 2 is provided on the frame 1.

[0025] Specifically, as Figures 2 - 5 given, the printing mechanism 2 includes a mounting plate 201 located outside the frame 1. A top plate 2013 is placed on the top of the mounting plate 201. A knife holder 203 is fixedly connected to the bottom of the top plate 2013. A scraping knife 202 is fixedly connected to the bottom of the knife holder 203. A through groove 2014 is provided on the mounting plate 201. The knife holder 203 passes through the through groove 2014. Two positioning columns 2015 are fixedly connected to the top of the mounting plate 201. The through groove 2014 is located between the two positioning columns 2015. The top plate 2013 is movably sleeved outside the two positioning columns 2015. A side block 208 is fixedly connected to the outside of the mounting plate 201. A support shaft 209 is rotatably connected to the top of the side block 208. A limiting plate 2011 is fixedly connected to the top end of the support shaft 209. A U-shaped frame 2012 is fixedly connected to the top of the top plate 2013. The U-shaped frame 2012 is sleeved outside the limiting plate 2011. A column 2010 is fixedly connected to the top of the side block 208. A fixing plate 2021 is fixedly connected to the top end of the column 2010. A movable plate 2022 is movably sleeved outside the column 2010. A U-shaped pull rod 2020 is fixedly connected to the top of the movable plate 2022. The U-shaped pull rod 2020 passes through the fixing plate 2021 and is movably connected to the fixing plate 2021. A spring 2019 is fixedly connected between the movable plate 2022 and the fixing plate 2021. The spring 2019 is sleeved outside the column 2010. A connecting column 2018 is fixedly connected to the bottom of the movable plate 2022. A square block 2016 is fixedly connected to the bottom end of the connecting column 2018. A square groove 2017 is provided on the top of the limiting plate 2011. The square block 2016 is inserted into the square groove 2017;

[0026] In the initial state, the limit plate 2011 abuts against the column 2010, and the square block 2016 is inserted into the square groove 2017. First, both the squeegee 202 and the tool rest 203 penetrate through the through groove 2014 until the top plate 2013 is located on top of the mounting plate 201. At the same time, the top plate 2013 is sleeved outside the two positioning posts 2015. Then, the U-shaped pull rod 2020 is pulled upward to drive the movable plate 2022 to slide upward along the column 2010. At this time, the spring 2019 is compressed, and at the same time, the connecting column 2018 drives the square block 2016 to rise and move out of the square groove 2017. Then, the limit plate 2011 is rotated until it is sleeved inside the U-shaped frame 2012. Then, the U-shaped pull rod 2020 is released. At this time, the spring 2019 resets to drive the movable plate 2022 to slide downward along the column 2010, and drives the square block 2016 to descend and insert into the square groove 2017 through the connecting column 2018 to limit the limit plate 2011 and limit the top plate 2013 to prevent it from moving upward, completing the installation of the squeegee 202. When the limit plate 2011 moves out of the U-shaped frame 2012 and abuts against the column 2010, the limiting effect on the top plate 2013 is released, and the squeegee 202 can be disassembled, and finally the replacement of the squeegee 202 is realized.

[0027] Specifically, it is given by Figures 1 - 2 Outside the frame 1, a U-shaped round rod 204 is fixedly connected. The mounting plate 201 is movably sleeved outside the U-shaped round rod 204. Inside the frame 1, a motor 207 is fixedly installed. A screw rod 205 is fixedly connected to the motor 207. The end of the screw rod 205 away from the motor 207 is rotatably connected to the frame 1. A nut 206 is threadedly sleeved outside the screw rod 205. The mounting plate 201 is fixed outside the nut 206. Outside the frame 1, a screen frame 3 is fixedly installed below the squeegee 202. Between the top of the screen frame 3 and the frame 1, two connecting plates 4 are symmetrically and fixedly connected;

[0028] In the working state, first start the motor 207 to drive the screw rod 205 to rotate, drive the mounting plate 201 to slide along the U-shaped round rod 204 through the nut 206, and drive the squeegee 202 to move left and right, squeeze the ink through the screen frame 3 onto the circumferential surface of the plastic bucket, and scrape the ink on the screen frame 3 evenly, and print it on the surface of the plastic bucket. Finally, the printing process on the surface of the plastic bucket is completed.

Claims

1. A screen printing machine for plastic barrels, comprising a frame (1), characterized in that: The frame (1) is provided with a printing mechanism (2); The printing mechanism (2) comprises a mounting plate (201) located outside the frame (1); a top plate (2013) is placed on the top of the mounting plate (201); a knife holder (203) is fixedly connected to the bottom of the top plate (2013); an ink scraper (202) is fixedly connected to the bottom of the knife holder (203); a through groove (2014) is provided on the mounting plate (201); the knife holder (203) passes through the through groove (2014); two positioning columns (2015) are fixedly connected to the top of the mounting plate (201); the through groove (2014) is located between the two positioning columns (2015); and the top plate (2013) is movably sleeved on the outside of the two positioning columns (2015).

2. A plastic barrel screen printing machine according to claim 1, characterized in that: The outer side of the mounting plate (201) is fixedly connected to a side block (208), the top of the side block (208) is rotatably connected to a support shaft (209), the top end of the support shaft (209) is fixedly connected to a limit plate (2011), the top of the top plate (2013) is fixedly connected to a U-shaped frame (2012), and the U-shaped frame (2012) is sleeved on the outer side of the limit plate (2011).

3. A plastic barrel screen printing machine according to claim 2, characterized in that: The top of the side block (208) is fixedly connected to a column (2010), the top of the column (2010) is fixedly connected to a fixed plate (2021), the outer side of the column (2010) is movably sleeved with a movable plate (2022), the top of the movable plate (2022) is fixedly connected to a U-shaped pull rod (2020), the U-shaped pull rod (2020) passes through the fixed plate (2021) and is movably connected to the fixed plate (2021), and the movable plate (2022) A spring (2019) is fixedly connected to the fixed plate (2021), and the spring (2019) is sleeved on the outer side of the column (2010). The bottom of the movable plate (2022) is fixedly connected to a connecting column (2018), and the bottom end of the connecting column (2018) is fixedly connected to a square block (2016). The top of the limiting plate (2011) is provided with a square groove (2017), and the square block (2016) is inserted into the square groove (2017).

4. The screen printing machine for plastic barrels according to claim 1, characterized in that: The outer side of the frame (1) is fixedly connected with a U-shaped round rod (204), and the mounting plate (201) is movably sleeved on the outer side of the U-shaped round rod (204).

5. The screen printing machine for plastic barrels according to claim 1, characterized in that: A motor (207) is fixedly installed inside the frame (1), a screw rod (205) is fixedly connected to the motor (207), one end of the screw rod (205) away from the motor (207) is rotatably connected to the frame (1), a screw sleeve (206) is threadedly sleeved on the outer side of the screw rod (205), and the mounting plate (201) is fixed to the outer side of the screw sleeve (206).

6. The screen printing machine for plastic barrels according to claim 1, characterized in that: A screen frame (3) located below the ink scraper (202) is fixedly mounted on the outer side of the frame (1), and two connecting plates (4) are symmetrically fixedly connected between the top of the screen frame (3) and the frame (1).

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