Scraper swing arm structure of screen printing machine

Abstract

The utility model relates to the technical field of screen printing machines, in particular to a scraper swing arm structure of a screen printing machine, which comprises a bottom plate, two sides of the bottom plate are provided with driving components, the sides where the driving components are located are defined as a front side and a rear side, and a scraper component is arranged in the middle of the bottom plate and comprises a mounting plate which extends front and back and is horizontally arranged. A base extending up and down is arranged above the mounting plate, a T-shaped fixing plate extending up and down is arranged on the right side of the base, a first servo motor is arranged on the right side of the T-shaped fixing plate, the output end of the first servo motor is defined to face downwards, a worm extending up and down is arranged at the lower end of the first servo motor, and a turbine matched with the worm is arranged on the left side of the worm. A scraper connecting shaft extending front and back is arranged at the center of the middle of the turbine. A scraper is fixed to the lower end of the scraper connecting shaft. The first servo motor and the turbine worm transmission structure are arranged on the mounting plate, so that the device can control the angle of the scraper through the motor, manual adjustment is not needed, and the working efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of screen printing machines, in particular to a scraper swing arm structure of a screen printing machine. Background Art

[0002] A screen printer is a device that uses screen holes for printing. Its working principle is to press ink down through the screen through the screen holes, causing the screen to deform, thereby squeezing out the ink to form a print. Screen printers are widely used in printing various materials and products. Their high precision, high efficiency and high flexibility make them an indispensable printing equipment in the printing industry.

[0003] For example, a Chinese patent application with application publication number CN118046666A discloses a flat screen screen printing machine, which includes a frame with a main printing platform, a clamping module on the main printing platform, and a flipping mechanism on the main printing platform. By setting up the flipping mechanism, the printed material can be flipped up and down to complete the printing on the front and back of the printed material, thereby improving the efficiency of double-sided printing.

[0004] However, the screen printing machine also has certain defects: 1. The scraper structure of the screen printing machine requires manual adjustment of the scraper angle when printing different materials, which reduces the working efficiency; 2. The screen printing machine has a double scraper structure, which increases the complexity of the equipment and the maintenance cost of the equipment. Utility Model Content

[0005] The utility model provides a scraper swing arm structure of a screen printing machine, which solves the technical problem of low operating efficiency caused by manual adjustment of the scraper angle when the screen printing machine performs printing operations on different materials.

[0006] In order to solve the above problems, the utility model provides a scraper swing arm structure of a screen printing machine adopts the following technical solutions:

[0007] A scraper swing arm structure of a screen printing machine includes a base plate, drive assemblies are provided on both sides of the base plate, the sides where the drive assemblies are located are defined as the front and rear sides, a scraper assembly is provided in the middle of the base plate, the scraper assembly includes a mounting plate extending front and back and arranged horizontally, a base extending up and down is provided above the mounting plate, a T-shaped fixing plate extending up and down is provided on the right side of the base, a first servo motor is provided on the right side of the T-shaped fixing plate, the output end of the first servo motor is defined to face downward, a worm extending up and down is provided at the lower end of the first servo motor, a turbine cooperating with the worm is provided on the left side of the worm, a scraper connecting shaft extending front and back is provided at the wheel center in the middle of the turbine, and a scraper is fixed to the lower end of the scraper connecting shaft.

[0008] Its beneficial effect is that by arranging the first servo motor and the worm gear transmission structure on the mounting plate, the device can control the scraper angle through the motor without manual adjustment, thereby improving the operating efficiency of the equipment.

[0009] Furthermore, the front and rear sides of the right end of the base are provided with slide rails extending up and down, and two rectangular sliders are provided between the T-shaped fixing plate and the base. The two sliders are slidably installed on the two slide rails, and the T-shaped fixing plate is fixedly connected to the two sliders.

[0010] Furthermore, the left side of the base has a second servo motor, and its output end is defined to face upward. The right end of the base is provided with a screw extending up and down between the two slide rails, and the upper end of the screw and the upper end of the second servo motor are provided with pulleys, and a belt is provided between the two pulleys; the right end of the base has a fixed seat, the upper end of the screw is passed through the fixed seat, and the lower end of the screw is passed through the base, a nut is sleeved on the outer circumference of the screw, and the outer side of the nut has a nut seat fixed on the T-shaped fixed plate to drive the T-shaped fixed plate to move up and down.

[0011] Furthermore, the right side of the T-shaped fixing plate has a motor seat for fixing the first servo motor, and a coupling is provided between the worm and the first servo motor. The coupling is located in the motor seat, and a transmission box is provided at the lower end of the motor seat and located on the outside of the worm. The transmission box is fixed on the T-shaped fixing plate, and the upper and lower ends of the worm are provided with bearings fixed on the transmission box.

[0012] Furthermore, the front and rear sides of the transmission box are provided with side plates extending left and right, the right end of the side plate is fixedly connected to the transmission box, and the left end of the side plate is sleeved on the outside of the scraper connecting shaft. A bearing is provided between the side plate and the scraper connecting shaft, and the side plate is used to support the connecting shaft. There is a spacer sleeve between the turbine and the side plate, which is sleeved on the scraper connecting shaft, and the spacer sleeve is used to position the turbine.

[0013] Furthermore, the scraper connecting shaft has a fixed block at its lower end and on both the front and rear sides of the scraper connecting shaft. The lower end of the fixed block has two rectangular protrusions extending up and down in parallel. The upper end of the fixed block is fixedly connected to the scraper connecting shaft. The lower end of the fixed block has a rectangular reinforcing plate extending forward and backward. The reinforcing plate is located at the left end of the left protrusion and is fixedly connected to the left protrusion. The scraper connecting shaft also has a reinforcing block. The upper end of the reinforcing block is fixedly connected to the scraper connecting shaft, and the lower end of the reinforcing block is fixedly connected to the reinforcing plate.

[0014] Furthermore, the lower end of the reinforcement block has a left clamping plate extending forward and backward, the right side of the left clamping plate has a right clamping plate extending forward and backward, and the upper end of the right clamping plate is located between the two protrusions; a rectangular scraper extending forward and backward is provided between the right clamping plate and the left clamping plate and at the lower ends of the right clamping plate and the left clamping plate, and a plurality of screws are provided between the right clamping plate and the left clamping plate to clamp the scraper; a plunger extending left and right is provided in the middle of the reinforcement plate, and the right clamping plate is rotatably connected to the reinforcement plate through the plunger.

[0015] The beneficial effect is that the arrangement of the plunger and the fixed block enables the scraper to rotate around the plunger within the limited range of the fixed block, thereby enabling the scraper to adapt to uneven printing surfaces.

[0016] Furthermore, the drive assembly includes a third servo motor located at the rear end of the left side of the base plate, with a reducer at its lower end, and the output end of the reducer is defined as the front end. The front end of the reducer has a synchronous wheel shaft extending forward and backward, and the front and rear ends of the synchronous wheel shaft are provided with a synchronous wheel seat fixed on the base plate, and a bearing is provided between the synchronous wheel seat and the synchronous wheel shaft; the front and rear ends of the synchronous wheel shaft are also provided with pulleys, and the front and rear ends of the right side of the base plate are provided with an adjusting wheel seat, and the adjusting wheel seat is also provided with a pulley, and a belt is provided between the pulleys on the left and right sides of the base plate.

[0017] Furthermore, the front and rear sides of the base plate are provided with guide rails extending left and right, the guide rails are provided with sliders, the sliders have plate-shaped slider seats extending horizontally front and back, the front end of the front slider seat and the rear end of the rear slider seat are both provided with L-shaped pressure plates, the upper end of the L-shaped pressure plate has a rack extending left and right that cooperates with the belt, the L-shaped pressure plate is also provided with a pressure block, and the belt is located between the pressure block and the L-shaped pressure plate.

[0018] Furthermore, the slider seat at the front end of the base plate is provided with a support seat, the lower end of the front side of the mounting plate is provided with a rotating seat hinged to the support seat, the front side of the rotating seat is provided with multiple slots, the left side of the support seat is provided with a limit plate that cooperates with the slot, and the lower end of the limit plate is provided with a spring; the slider seat at the rear end of the base plate is provided with a limit seat, the lower end of the rear side of the mounting plate is provided with a limit block, and a locking pin is provided between the limit seat and the limit block.

[0019] The beneficial effect is that the arrangement of the rotating seat and the locking pin enables the rear end of the mounting plate to rotate upward, thereby providing a larger operating space when replacing the scraper and improving the convenience of operation.

[0020] The beneficial effects of the scraper swing arm structure of a screen printing machine provided by the utility model are:

[0021] 1. By arranging the first servo motor and the worm gear transmission structure on the mounting plate, the equipment can control the scraper angle through the motor without manual adjustment, thereby improving the operating efficiency of the equipment.

[0022] 2. The setting of the rotating seat and the locking pin enables the rear end of the mounting plate to rotate upward, thereby providing a larger operating space when replacing the scraper and improving the convenience of operation.

[0023] 3. The arrangement of the plunger and the fixed block enables the scraper to rotate around the plunger within the limited range of the fixed block, so that the scraper can adapt to the uneven printing surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0025] Figure 1 The utility model provides an overall structure of a scraper swing arm structure of a screen printing machine Figure 1 ;

[0026] Figure 2 The utility model provides an overall structure of a scraper swing arm structure of a screen printing machine Figure 2 ;

[0027] Figure 3 for Figure 1 Schematic diagram of the structure of the middle scraper assembly Figure 1 ;

[0028] Figure 4 for Figure 1 Schematic diagram of the structure of the middle scraper assembly Figure 2 ;

[0029] Figure 5 for Figure 4 A partial enlarged schematic diagram of point A in the middle;

[0030] Figure 6 A partial cross-sectional view of a scraper swing arm structure of a screen printing machine provided by the utility model Figure 1 ;

[0031] Figure 7 A partial cross-sectional view of a scraper swing arm structure of a screen printing machine provided by the utility model Figure 2 ;

[0032] Figure 8 for Figure 1 Schematic diagram of the matching of the mounting plate and the limit seat shown;

[0033] Figure 9 for Figure 1 Schematic diagram of the matching of the mounting plate and the rotating seat shown;

[0034] Figure 10 for Figure 7 The structural diagram of the L-shaped pressing plate shown;

[0035] Figure 11 for Figure 9 Schematic diagram of the structure of the middle limit plate.

[0036] Description of reference numerals:

[0037] 1. Base plate; 2. Drive assembly; 21. Third servo motor; 211. Reducer; 22. Synchronous wheel shaft; 23. Synchronous wheel seat; 231. Bearing; 24. Belt; 25. Adjusting wheel seat; 26. Pulley; 27. Guide rail; 271. Limit screw; 28. Slider; 281. Slider seat; 282. L-shaped pressure plate; 283. Pressure block; 284. Rack; 285. Limit seat; 2851. Limit block; 286. Locking pin; 287. Support seat; 2871. Limit plate; 2872. Spring; 288. Rotating seat; 2881. Slot;

[0038] 3. Scraper assembly; 31. Mounting plate; 311. Handle; 32. Base; 321. Slide rail; 322. Fixed seat; 33. Second servo motor; 34. Screw; 341. Nut; 342. Nut seat; 35. T-shaped fixing plate; 351. First servo motor; 352. Motor seat; 353. Coupling; 354. Transmission box; 355. Worm; 356. Turbine; 357. Side plate; 358. Spacer; 36. Scraper connecting shaft; 361. Fixed block; 362. Reinforcement block; 363. Bump; 37. Reinforcement plate; 371. Plunger; 372. Left clamping plate; 373. Right clamping plate; 374. Screw; 38. Scraper. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0040] The main idea of ​​the present invention is to provide a first servo motor 351 and a worm gear 356 355 transmission structure on the mounting plate 31 so that the device can control the angle of the scraper 38 by the motor without manual adjustment, thereby improving the operating efficiency of the device.

[0041] After introducing the basic principles of the present invention, various non-limiting embodiments of the present invention are described in detail below. The numbers of any elements in the drawings are for illustration only and not for limitation, and any names are for distinction only and do not have any limiting meaning.

[0042] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0043] Embodiment 1 of the scraper swing arm structure of a screen printing machine provided by the utility model:

[0044] like Figures 1 to 11 As shown, the scraper arm structure of the screen printing machine includes a base plate 1, and a drive assembly 2 is provided on the front and rear sides of the base plate 1. The sides where the drive assembly 2 is located are defined as the front and rear sides. A scraper assembly 3 is also provided in the middle of the base plate 1.

[0045] First, let me introduce the scraper assembly 3. The scraper assembly 3 includes a mounting plate 31, which extends horizontally in the front-to-back direction. The mounting plate 31 has a base 32 extending up and down, and the base 32 is fixedly connected to the mounting plate 31. The right end of the base 32 and the front and rear sides of the base 32 are both provided with vertically extending slide rails 321 in parallel, and a slider 28 is slidably penetrated on the slide rail 321. The right side of the base 32 also has a T-shaped fixing plate 35 extending up and down, and the T-shaped fixing plate 35 and the slider 28 are fixedly connected so that the T-shaped fixing plate 35 can move along the slide rail 321.

[0046] In addition, a second servo motor 33 is provided at the left end of the base 32, and the output end of the second servo motor 33 is defined to face upward. The second servo motor 33 is fixed on the base 32, and a pulley 26 is provided at its upper end; a lead screw 34 extending up and down is provided at the right end of the base 32, and the lead screw 34 is located between the two slide rails 321, and a fixed seat 322 is provided at the upper end of the base 32. The lead screw 34 is passed through the fixed seat 322, and the lower end of the lead screw 34 is passed through the bottom of the base 32, and a pulley 26 is provided at the upper end of the lead screw 34, and a belt 24 is provided between the two pulleys 26 to drive the lead screw 34 to rotate through the second servo motor 33.

[0047] The screw 34 is also provided with a nut 341 that cooperates with it. A nut seat 342 is fixedly connected to the nut 341 on the outer peripheral surface of the nut 341. The right side of the nut seat 342 is fixedly connected to the T-shaped fixing plate 35, so that the T-shaped fixing plate 35 can be driven up and down by the rotation of the screw 34.

[0048] In addition, a rectangular motor base 352 fixedly connected to the T-shaped fixing plate 35 is provided on the right side of the motor base 35. The motor base 352 is a hollow structure. The upper end of the motor base 352 is provided with a first servo motor 351. The output end of the first servo motor 351 is defined as the lower end. The lower end of the first servo motor 351 is provided with a coupling 353. The coupling 353 is located in the motor base 352. The lower end of the coupling 353 has a worm 355 extending up and down. The lower end of the motor base 352 has a rectangular transmission box 354. The transmission box 354 is a hollow structure. The transmission box 354 is fixedly connected to the T-shaped fixing plate 35. The worm 355 is located in the transmission box 354. The upper and lower ends of the worm 355 are provided with deep groove ball bearings 231. The bearing 231 It is fixed on the transmission box 354; the front and rear sides of the transmission box 354 both have side plates 357 extending left and right, the right end of the side plate 357 is fixed on the transmission box 354, and the left end of the side plate 357 is penetrated by a scraper connecting shaft 36 extending forward and backward, and a deep groove ball bearing 231 is provided between the side plate 357 and the scraper connecting shaft 36, and the side plate 357 is used to support the connecting shaft; a turbine 356 cooperating with the worm 355 is provided between the two side plates 357 and located on the scraper connecting shaft 36, so as to drive the scraper connecting shaft 36 to rotate through the first servo motor 351, and a spacer sleeve 358 is provided between the turbine 356 and the front and rear side plates 357, and the spacer sleeve 358 is used to position the turbine 356.

[0049] Then, a fixed block 361 extending up and down is provided at the lower end of the scraper connecting shaft 36 and located on the front and rear sides of the scraper 38. The lower end of the fixed block 361 has two rectangular protrusions 363 extending up and down in parallel. The upper end of the fixed block 361 is fixedly connected to the scraper connecting shaft 36, and the lower end of the fixed block 361 has a rectangular reinforcing plate 37 extending forward and backward. The reinforcing plate 37 is located at the left end of the left protrusion 363 and is fixedly connected to the left protrusion 363; there are also two reinforcing blocks 362 below the scraper connecting shaft 36, the reinforcing block 362 is located between the two fixed blocks 361, the upper end of the reinforcing block 362 is fixedly connected to the scraper connecting shaft 36, and the lower end of the reinforcing block 362 is fixedly connected to the reinforcing plate 37.

[0050] Then, the lower end of the reinforcement block 362 has a rectangular left clamping plate 372 extending forward and backward, and the right side of the left clamping plate 372 is provided with a rectangular right clamping plate 373 extending forward and backward. The upper end of the right clamping plate 373 is located between the two protrusions 363, and a rectangular scraper 38 extending forward and backward is provided between the right clamping plate 373 and the left clamping plate 372. The scraper 38 is located at the lower ends of the left clamping plate 372 and the right clamping plate 373. A plurality of screws 374 are provided between the left clamping plate 372 and the right clamping plate 373 to clamp the scraper 38. The middle part of the reinforcement plate 37 has a plunger 371 extending left and right, and the right clamping plate 373 is rotatably mounted on the plunger 371 so that the scraper 38 can rotate around the plunger 371 within the limit range of the fixed block 361, so that the scraper 38 can adapt to the uneven printing surface.

[0051] The drive assembly 2 is introduced below. The drive assembly 2 includes a third servo motor 21 located at the rear end of the left side of the base plate 1, and a reducer 211 is provided at the lower end thereof. The output end of the reducer 211 is defined as the front end. The front end of the reducer 211 has a synchronous wheel shaft 22 extending forward and backward. The front and rear ends of the synchronous wheel shaft 22 are provided with a synchronous wheel seat 23 fixed on the base plate 1, and a deep groove ball bearing 231 is provided between the synchronous wheel seat 23 and the synchronous wheel shaft 22; the front and rear ends of the synchronous wheel shaft 22 are also provided with pulleys 26, and the front and rear ends of the right side of the base plate 1 are provided with an adjusting wheel seat 25, and the adjusting wheel seat 25 is provided with a pulley 26. A belt 24 is provided between the pulleys 26 on the left and right sides of the base plate 1 to drive the scraper assembly 3 to move left and right.

[0052] Then, the front and rear sides of the base plate 1 are provided with guide rails 27 extending left and right, and the left end of the guide rail 27 has a limit screw 271 fixed to the base plate 1, and a rectangular slider 28 is provided on the guide rail 27. The upper end of the slider 28 is horizontally provided with a plate-shaped slider seat 281 extending front and back, and the front side of the front end slider seat 281 and the rear side of the rear end slider seat 281 are both provided with an L-shaped pressure plate 282. The upper end of the L-shaped pressure plate 282 has a rack 284 extending left and right that cooperates with the belt 24. A pressure block 283 is also provided on the L-shaped pressure plate 282. The pressure block 283 is used to press down the belt 24 to cooperate with the rack 284. The belt 24 is located between the pressure block 283 and the L-shaped pressure plate 282 to drive the slider seat 281 to move left and right.

[0053] The slider seat 281 at the front end of the base plate 1 is provided with a support seat 287, and the lower end of the front side of the mounting plate 31 is provided with a rotating seat 288 hinged to the support seat 287. The front side of the rotating seat 288 is provided with two left and right extending slots 2881, and the left side of the support seat 287 is provided with a limit plate 2871 that cooperates with the slot 2881, and the lower end of the limit plate 2871 is provided with a spring 2872 to provide support for the mounting plate 31 when replacing the scraper 38; the slider seat 281 at the rear end of the base plate 1 is provided with a limit seat 285, and the lower end of the rear side of the mounting plate 31 is provided with a limit block 2851 that cooperates with the limit seat 285, and a locking pin 286 is provided between the limit seat 285 and the limit block 2851, and the locking pin 286 is used to lock the mounting plate 31, and the left side of the rear end of the mounting plate 31 is provided with a handle 311, and the handle 311 is used to apply force to lift the scraper 38.

[0054] The working principle of the scraper swing arm structure is as follows: first, driven by the third servo motor 21 and the reducer 211, the synchronous wheel shaft 22 drives the belts 24 on the front and rear sides of the scraper assembly 3 to move left and right, and the belt 24 drives the scraper assembly 3 to move left and right by cooperating with the L-shaped pressure plate 282; in addition, the second servo motor 33 drives the screw 34 to rotate through the belt 24, and then drives the T-shaped fixed plate 35 up and down through the nut 341 on the screw 34, so that the scraper 38 can complete the rising and falling movements; in addition, the first servo motor 351 drives the worm 355 to rotate through the coupling 353, and the worm 355 cooperates with the turbine 356 mounted on the scraper connecting shaft 36 for transmission, so that the scraper connecting shaft 36 can rotate under the drive of the first servo motor 351, and then can drive the scraper 38 to rotate through the fixed block 361 to complete the adjustment of the scraper 38 angle.

[0055] When replacing the scraper 38, first remove the locking pin 286, then apply force to the handle 311 to lift the scraper 38 upward, and then the spring 2872 pushes the limit plate 2871 upward to lock the slot 2881. At this time, the scraper 38 can be replaced. The setting of the slot 2881 and the limit plate 2871 improves the convenience of replacing the scraper 38.

[0056] Embodiment 2 of the scraper swing arm structure of a screen printing machine provided by the utility model:

[0057] The main difference between it and embodiment 1 is that: the first servo motor

[0058] In Example 1, the second servo motor and the lead screw are driven by a belt.

[0059] In this embodiment, the second servo motor and the lead screw are driven by a coupling.

[0060] Embodiment 3 of the scraper swing arm structure of a screen printing machine provided by the utility model:

[0061] The main difference between it and Example 1 is:

[0062] In Example 1, the left clamping plate and the right clamping plate are fixedly connected by screws.

[0063] In this embodiment, the left clamping plate and the right clamping plate are fixed by bolts.

[0064] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "width", "horizontal", "top", "bottom", "inside", "outside" and other terms indicating orientation or positional relationships are based on the orientation or positional relationships shown in the drawings of this specification. They are only for the purpose of facilitating the explanation of the scheme of the utility model and simplifying the description, rather than explicitly or implicitly indicating that the devices or elements involved must have the specific orientation, be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as limitations on the scheme of the utility model.

[0065] In addition, in the description of this specification, “a plurality of” means at least two, for example, two, three or more, etc., unless otherwise clearly and specifically defined.

Claims

1. A scraper arm structure for a screen printing machine, comprising a base plate, drive assemblies disposed on both sides of the base plate, the drive assemblies being defined as the front and rear sides, and a scraper assembly disposed in the middle of the base plate, characterized in that: The scraper assembly includes a mounting plate extending forward and backward and arranged horizontally, a base extending upward and downward is provided above the mounting plate, a T-shaped fixing plate extending upward and downward is provided on the right side of the base, a first servo motor is provided on the right side of the T-shaped fixing plate, and the output end of the first servo motor is defined to face downward, a worm extending upward and downward is provided at the lower end of the first servo motor, a turbine cooperating with the worm is provided on the left side of the worm, a scraper connecting shaft extending forward and backward is provided at the center of the wheel in the middle of the turbine, and a scraper is fixed to the lower end of the scraper connecting shaft.

2. The scraper arm structure of a screen printing machine according to claim 1, characterized in that: The front and rear sides of the right end of the base are provided with slide rails extending up and down, and two rectangular sliders are provided between the T-shaped fixing plate and the base. The two sliders are slidably installed on the two slide rails, and the T-shaped fixing plate is fixedly connected to the two sliders.

3. The scraper arm structure of a screen printing machine according to claim 2, characterized in that: The left side of the base is provided with a second servo motor, and its output end is defined to face upward. The right end of the base is provided with a screw extending up and down between the two slide rails, and the upper end of the screw and the upper end of the second servo motor are both provided with pulleys, and a belt is provided between the two pulleys; the right end of the base is provided with a fixed seat, the upper end of the screw is passed through the fixed seat, and the lower end of the screw is passed through the base, a nut is sleeved on the outer circumference of the screw, and a nut seat is provided on the outer side of the nut and is fixed on the T-shaped fixed plate to drive the T-shaped fixed plate to move up and down.

4. The scraper arm structure of a screen printing machine according to claim 3, characterized in that: The right side of the T-shaped fixing plate has a motor seat for fixing the first servo motor, and a coupling is provided between the worm and the first servo motor. The coupling is located in the motor seat, and a transmission box is provided at the lower end of the motor seat and located on the outside of the worm. The transmission box is fixed on the T-shaped fixing plate, and the upper and lower ends of the worm are provided with bearings fixed on the transmission box.

5. The scraper swing arm structure of a screen printing machine according to claim 4, characterized in that: The front and rear sides of the transmission box are provided with side plates extending left and right, the right end of the side plate is fixedly connected to the transmission box, and the left end of the side plate is sleeved on the outside of the scraper connecting shaft. A bearing is provided between the side plate and the scraper connecting shaft, and the side plate is used to support the connecting shaft. There is a spacer sleeve between the turbine and the side plate, which is sleeved on the scraper connecting shaft, and the spacer sleeve is used to position the turbine.

6. The scraper arm structure of a screen printing machine according to claim 5, characterized in that: The scraper connecting shaft has a fixed block at its lower end and on both the front and rear sides thereof. The lower end of the fixed block has two rectangular protrusions extending up and down in parallel. The upper end of the fixed block is fixedly connected to the scraper connecting shaft. The lower end of the fixed block has a rectangular reinforcing plate extending forward and backward. The reinforcing plate is located at the left end of the left protrusion and is fixedly connected to the left protrusion. The scraper connecting shaft also has a reinforcing block. The upper end of the reinforcing block is fixedly connected to the scraper connecting shaft, and the lower end of the reinforcing block is fixedly connected to the reinforcing plate.

7. The scraper swing arm structure of a screen printing machine according to claim 6, characterized in that: The lower end of the reinforcement block is provided with a left clamping plate extending forward and backward, and the right side of the left clamping plate is provided with a right clamping plate extending forward and backward, and the upper end of the right clamping plate is located between the two protrusions; a rectangular scraper extending forward and backward is provided between the right clamping plate and the left clamping plate and at the lower ends of the right clamping plate and the left clamping plate, and a plurality of screws are provided between the right clamping plate and the left clamping plate to clamp the scraper; a plunger extending left and right is provided in the middle of the reinforcement plate, and the right clamping plate is rotatably connected to the reinforcement plate through the plunger.

8. The scraper arm structure of a screen printing machine according to claim 7, characterized in that: The driving assembly includes a third servo motor located at the rear end of the left side of the base plate, and a reducer is provided at the lower end thereof. The output end of the reducer is defined as the front end. The front end of the reducer has a synchronous wheel shaft extending forward and backward. The front and rear ends of the synchronous wheel shaft are provided with a synchronous wheel seat fixed on the base plate, and a bearing is provided between the synchronous wheel seat and the synchronous wheel shaft; the front and rear ends of the synchronous wheel shaft are also provided with pulleys, and the front and rear ends of the right side of the base plate are provided with an adjusting wheel seat, and the adjusting wheel seat is also provided with a pulley, and a belt is provided between the pulleys on the left and right sides of the base plate.

9. The scraper arm structure of a screen printing machine according to claim 8, characterized in that: The front and rear sides of the base plate are provided with guide rails extending left and right, and a slider is provided on the guide rail. The slider has a plate-shaped slider seat extending horizontally front and back. The front end of the front slider seat and the rear end of the rear slider seat are both provided with L-shaped pressure plates, and the upper end of the L-shaped pressure plate has a rack extending left and right that cooperates with the belt. The L-shaped pressure plate is also provided with a pressure block, and the belt is located between the pressure block and the L-shaped pressure plate.

10. The scraper swing arm structure of a screen printing machine according to claim 9, characterized in that: The slider seat at the front end of the base plate is provided with a support seat, the lower end of the front side of the mounting plate is provided with a rotating seat hinged to the support seat, the front side of the rotating seat is provided with multiple slots, the left side of the support seat is provided with a limit plate that cooperates with the slot, and the lower end of the limit plate is provided with a spring; the slider seat at the rear end of the base plate is provided with a limit seat, the lower end of the rear side of the mounting plate is provided with a limit block, and a locking pin is provided between the limit seat and the limit block.

Images