Spraying device for machining center shield production and using method of spraying device

Abstract

The invention relates to the technical field of shield plate paint spraying, in particular to a spraying device for machining center shield production and a using method thereof.The spraying device comprises a positioning part, a displacement device is slidably inserted into the positioning part, and shield plates are placed at the top end of the displacement device and in the positioning part correspondingly; the displacement device comprises a shifting piece, side end supports, a receiving support, a guide rod, a supporting cross frame, a contact bottom rod and positioning sliding plates, the side end supports are fixedly installed at the tops of the two ends of the supporting cross frame, the positioning sliding plates are fixedly installed at the opposite ends of the side end supports, and the receiving support is fixedly installed at the side ends, away from the side end supports, of the positioning sliding plates; the bottom of the front end of the contact bottom rod is rotationally installed at the front end in the receiving support, the guide rod is rotationally installed at the side end, close to the positioning sliding plate, of the receiving support, and the shifting piece is fixedly installed at the rear end of the bottom of the guide rod. Through the arrangement of the displacement device and the positioning part, the purpose that the protective cover plate paint spraying device conducts cyclic feeding supplement and synchronous discharging of the protective cover plate is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of shield plate spray painting, in particular to a spraying device for producing shields in a machining center and a use method thereof. Background Art

[0002] The machining center guard is an important accessory used to protect the safety of machine tools and operators. The machining center guard refers to an outer protective device that protects the machining center. It has good sealing properties and can prevent iron chips, coolant, and accidental accidents of tools.

[0003] A paint spraying device is a device used to spray paint evenly on the surface of an object. It uses compressed air to atomize the paint and spray it onto the surface of the object. This device is suitable for spraying various coatings, including oil paint, latex paint, etc. By spraying paint on the surface of the board, the board surface can be given corrosion resistance and waterproof functions, thereby extending the service life of the board.

[0004] At present, when the shield plate spraying device on the market is in use, due to the flat spraying method, only one shield plate can be sprayed in a short time. At the same time, the shield plate needs to be turned over twice to spray paint on both sides, resulting in the existing shield plate spraying device being unable to perform the functions of cyclic feeding, replenishment and synchronous discharge. Therefore, a device is needed to improve the above problem. Summary of the invention

[0005] In view of the problems in the prior art, the present invention provides a spraying device for producing a machining center shield and a method of using the spraying device.

[0006] The technical solution adopted by the present invention to solve its technical problems is: a spray device for producing a machining center shield and a method of using the same, including a positioning component, a displacement device is slidably inserted inside the positioning component, and shield plates are placed on the top of the displacement device and inside the positioning component respectively, and the displacement device includes a paddle, a side end bracket, a receiving bracket, a guide rod, a supporting cross frame, a contact bottom rod and a positioning slide plate, the side end bracket is fixedly mounted on the top of both ends of the supporting cross frame, the positioning slide plate is fixedly mounted on the opposite end of the side end bracket, the receiving bracket is fixedly mounted on the side end of the positioning slide plate away from the side end bracket, the front end bottom of the contact bottom rod is rotatably mounted on the inner front end of the receiving bracket, the guide rod is rotatably mounted on the side end of the receiving bracket close to the positioning slide plate, and the paddle is fixedly mounted on the bottom rear end of the guide rod.

[0007] Specifically, the positioning component includes a receiving device and a guiding device, and the receiving device is fixedly mounted on the rear end bottom of the guiding device.

[0008] Specifically, the receiving device includes a connecting rear rod, a collecting cavity, an L-shaped side frame, a connecting rope, a first synchronization rod, a first support rod, a first blocking frame, a first rack, a second blocking frame, a gear, a second rack, a second synchronization rod, a second support rod and a reset spring. The connecting rear rod is equidistantly fixedly installed at the rear end bottom of the collecting cavity, the second support rod and the first support rod are symmetrically fixedly installed on both sides of the collecting cavity, and the second support rod is located above the first support rod, the second synchronization rod is slidably sleeved on the second support rod, the second blocking frame is symmetrically fixedly installed at the bottom of the second synchronization rod, and the reset spring is symmetrically fixedly installed on the collecting cavity. The first locking cam is fixedly mounted on the bottom end of the first locking cam and the second locking cam is fixedly mounted on the bottom end of the second locking cam. The first locking cam is fixedly mounted on the top end of the first locking cam. The gears are symmetrically rotatably mounted on both sides of the collecting cavity and are located between the second rack and the first rack. The L-shaped side frames are fixedly mounted on the bottom ends of both sides of the collecting cavity and are located behind the second support rod. The connecting rope is fixedly mounted between the L-shaped side frames and the first locking cam.

[0009] Specifically, the guide device includes a supporting base, a driving motor, a screw, a paint spray gun, a guide ramp, a protective side plate, a front guide frame and a heating frame. The driving motor is fixedly installed at the rear end bottom of the supporting base, the guide ramp is fixedly installed at the front end of the supporting base, the protective side plates are fixedly installed on both sides of the top of the guide ramp, the screw is fixedly installed at the front end center of the driving motor, the front guide frame is fixedly installed at the inner front end of the supporting base, the heating frame and the paint spray gun are symmetrically fixedly installed inside the supporting base, and the heating frame is located in front of the paint spray gun.

[0010] Specifically, the supporting cross frame is threadedly sleeved on the outer ring of the screw rod, the bottom end of the connecting rear rod is connected to the rear end bottom of the supporting base frame, and the positioning slide plate is slidably inserted into the interior of the supporting base frame.

[0011] Specifically, the paddle is arranged in an L shape, and the bottom end of the paddle is aligned with the rear end of the bottom of the contact bottom rod, the front end bottom of the contact bottom rod is rotatably mounted on the inner front end of the receiving bracket, the front end surface of the guide rod is inclined at 45°, and the guide rod is aligned with the front guide frame.

[0012] Specifically, the rear end bottom of the front guide frame is inclined at 45°, the side end bracket is aligned with the connecting rope, and sockets compatible with the second blocking frame are symmetrically provided on both sides of the collecting cavity. The gap between the first blocking frame and the second blocking frame is equal to the thickness of the shield plate, and the second blocking frame is inclined at 15° near the side end top of the collecting cavity.

[0013] Specifically, the paint spray gun and the heating rack are located at the top and bottom of the receiving bracket, grooves are provided at the top and bottom of the inner part of the supporting base, and the positioning slide plate is located inside the grooves.

[0014] Specifically, the supporting base also includes bolts, vertical rods and a connecting base. The bolts are symmetrically rotatably installed on both sides of the top of the supporting base. The connecting base is threadedly sleeved on the outer circle of the bolts. The vertical rods are symmetrically fixedly installed on both sides of the top of the supporting base, and the vertical rods pass through the interior of the connecting base.

[0015] A method for using a spraying device for producing a machining center shield, comprising the following steps:

[0016] S1. First, the shield plates are stacked and placed inside the collecting chamber. The shield plates can be prevented from falling by setting the first blocking frame. Then, the driving motor can be started to drive the screw rod to rotate, so that the supporting cross frame can drive the receiving bracket to move to the rear end;

[0017] S2. Afterwards, when the side bracket squeezes the connecting rope and stretches it to the limit position, the receiving bracket can be vertically aligned with the collecting cavity. At the same time, the first blocking frame will move outward, so that the shield plate can fall onto the receiving bracket, completing the supply of the shield plate. Subsequently, when the supporting cross frame moves to the front end, the connecting rope can be released, and the second blocking frame can be inserted into the collecting cavity, thereby preventing the shield plate inside the collecting cavity from falling down in advance.

[0018] S3. Finally, when the receiving bracket drives the shield plate to pass through the paint spray gun and the heating rack in sequence, it can go through the painting and drying work. Then, when the receiving bracket moves to the front end to the extreme position, the guide rod can contact the front guide frame, so that the paddle can drive the rear end of the contact bottom rod to rotate upward, so that the shield plate can slide along the surface of the contact bottom rod to the guide inclined plate, completing the discharge work of the shield plate.

[0019] Beneficial effects of the present invention:

[0020] First, when the side end bracket of the present invention moves to the rear end until it contacts the connecting rope, the connecting rope can be squeezed to pull the first blocking bracket to move, so that the shield plate at the bottom layer inside the collecting chamber can be released and moved to the receiving bracket. At the same time, when the first blocking bracket is displaced, it can drive the second blocking bracket to insert into the collecting chamber, so as to prevent the upper shield plate inside the collecting chamber from falling down prematurely, so that the receiving bracket can only carry one shield plate to be displaced at a time, and through the setting of the reset spring, the second blocking bracket can be driven to reset when the connecting rope loses pressure, thereby completing the work of cyclic feeding and replenishment of the shield plate.

[0021] Secondly, when the supporting cross frame of the present invention moves to the extreme position toward the front end, it can drive the guide rod to contact the front guide frame. Through the restriction of the front guide frame, the front end of the guide rod can be tilted downward, and the rear end of the guide rod will be tilted upward, so that the paddle can drive the rear end of the contact bottom rod to tilt upward, and the front end of the contact bottom rod is rotatably installed on the front end bottom of the receiving bracket, so that the contact bottom rod can be rotated upward with the front end of the receiving bracket as the base point, so that the shield plate can slide downward along the surface of the contact bottom rod to the guide inclined plate, completing the work of synchronous discharge of the shield plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the main body of the present invention from the front perspective;

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the displacement device of the present invention from the front perspective;

[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of the positioning component in the present invention from a front perspective;

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the receiving device of the present invention from the front perspective;

[0027] Figure 5 For the present invention Figure 4 A local enlarged schematic diagram of point A;

[0028] Figure 6 It is a schematic diagram of the three-dimensional structure of the receiving device of the present invention from a rear perspective;

[0029] Figure 7 It is a schematic diagram of the three-dimensional structure of the guide device of the present invention from a front perspective;

[0030] Figure 8 It is a schematic diagram of the three-dimensional structure from the front perspective of the second embodiment of the support base in the present invention.

[0031] In the figure: 1-displacement device, 2-positioning component, 3-shield plate, 4-paddle, 5-side end bracket, 6-receiving bracket, 7-guide rod, 8-support cross frame, 9-contact bottom rod, 10-receiving device, 11-guide device, 12-connecting rear rod, 13-collecting chamber, 14-L-shaped side frame, 15-connecting rope, 16-first synchronization rod, 17-first support rod, 18-first blocking frame, 19-first rack, 20-second blocking frame, 21-gear, 22-second rack, 23-second synchronization rod, 24-second support rod, 25-support base frame, 26-drive motor, 27-screw rod, 28-paint spray gun, 29-guide ramp, 30-protective side plate, 31-front guide frame, 32-heating frame, 33-positioning slide plate, 34-bolt, 35-vertical rod, 36-connecting base frame, 37-reset spring. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0033] The present invention is further described below in conjunction with the accompanying drawings.

[0034] Example 1

[0035] like Figure 1 and Figure 2 As shown, a spraying device for producing a machining center shield of the present invention and a method of using the same include a positioning component 2, a displacement device 1 is slidably inserted inside the positioning component 2, a shield plate 3 is placed at the top of the displacement device 1 and inside the positioning component 2, respectively, the displacement device 1 includes a paddle 4, a side end bracket 5, a receiving bracket 6, a guide rod 7, a supporting cross frame 8, a contact bottom rod 9 and a positioning slide plate 33, the side end bracket 5 is fixedly mounted on the top of both ends of the supporting cross frame 8, the positioning slide plate 33 is fixedly mounted on the opposite end of the side end bracket 5, the receiving bracket 6 is fixedly mounted on the side end of the positioning slide plate 33 away from the side end bracket 5, the front end bottom of the contact bottom rod 9 is rotatably mounted on the inner front end of the receiving bracket 6, the guide rod 7 is rotatably mounted on the side end of the receiving bracket 6 close to the positioning slide plate 33, and the paddle 4 is fixedly mounted on the bottom rear end of the guide rod 7.

[0036] like Figure 3 The positioning component 2 includes a receiving device 10 and a guiding device 11. The receiving device 10 is fixedly mounted at the rear end bottom of the guiding device 11, which can support the receiving device 10 for placement work.

[0037] like Figure 4 , Figure 5 and Figure 6 The receiving device 10 includes a connecting rear rod 12, a collecting cavity 13, an L-shaped side frame 14, a connecting rope 15, a first synchronization rod 16, a first support rod 17, a first blocking frame 18, a first rack 19, a second blocking frame 20, a gear 21, a second rack 22, a second synchronization rod 23, a second support rod 24 and a reset spring 37. The connecting rear rod 12 is equidistantly fixedly installed at the rear end bottom of the collecting cavity 13, the second support rod 24 and the first support rod 17 are symmetrically fixedly installed on both sides of the collecting cavity 13, and the second support rod 24 is located above the first support rod 17, the second synchronization rod 23 is slidably sleeved on the second support rod 24, the second blocking frame 20 is symmetrically fixedly installed at the bottom of the second synchronization rod 23, the reset spring 37 is symmetrically fixedly installed between the collecting cavity 13 and the second synchronization rod 23, and the reset spring 37 is located at the first The outer ring of the second support rod 24, the first synchronization rod 16 is slidably sleeved on the first support rod 17, the first blocking frame 18 is symmetrically fixedly installed at the bottom end of the first synchronization rod 16, the second rack 22 is fixedly installed at the bottom end of the second blocking frame 20, the first rack 19 is fixedly installed at the top of the first blocking frame 18, the gear 21 is symmetrically rotationally installed on both sides of the collecting chamber 13, and the gear 21 is located between the second rack 22 and the first rack 19, the L-shaped side frame 14 is fixedly installed at the bottom ends of both sides of the collecting chamber 13, and the L-shaped side frame 14 is located behind the second support rod 24, the connecting rope 15 is fixedly installed between the L-shaped side frame 14 and the first blocking frame 18, when the second blocking frame 20 enters the interior of the collecting chamber 13, it can be inserted into the gap between the two shield plates 3, so that the upper and lower shield plates 3 inside the collecting chamber 13 can be separated and isolated.

[0038] like Figure 7 The guide device 11 includes a support base 25, a drive motor 26, a screw rod 27, a paint spray gun 28, a guide ramp 29, a protective side plate 30, a front guide frame 31 and a heating frame 32. The drive motor 26 is fixedly mounted on the rear end bottom of the support base 25, the guide ramp 29 is fixedly mounted on the front end of the support base 25, the protective side plate 30 is fixedly mounted on both sides of the top of the guide ramp 29, the screw rod 27 is fixedly mounted on the front end center of the drive motor 26, the front guide frame 31 is fixedly mounted on the inner front end of the support base 25, the heating frame 32 and the paint spray gun 28 are symmetrically fixedly mounted inside the support base 25, and the heating frame 32 is located in front of the paint spray gun 28. By turning on the drive motor 26 to drive the screw rod 27 to rotate forward and reverse, the support cross frame 8 can be driven to move forward and backward.

[0039] The support cross frame 8 is threadedly sleeved on the outer ring of the screw rod 27, the bottom end of the connecting rear rod 12 is connected to the rear end bottom of the support base frame 25, the positioning slide plate 33 is slidably inserted into the interior of the support base frame 25, the paddle 4 is L-shaped, and the bottom end of the paddle 4 is aligned with the bottom rear end of the contact bottom rod 9, the front end bottom of the contact bottom rod 9 is rotatably mounted on the inner front end of the receiving bracket 6, the front end surface of the guide rod 7 is inclined at 45°, and the guide rod 7 is aligned with the front guide frame 31, and the rear end bottom of the front guide frame 31 is inclined at 45°. It is arranged obliquely, with the side end bracket 5 aligned with the connecting rope 15, and symmetrically provided with plug holes adapted to the second blocking frame 20 on both sides of the collecting chamber 13. The gap between the first blocking frame 18 and the second blocking frame 20 is equal to the thickness of the shield plate 3. The second blocking frame 20 is arranged at an angle of 15° near the top of the side end of the collecting chamber 13. The paint spray gun 28 and the heating frame 32 are located at the top and bottom of the receiving bracket 6. The inner top and bottom of the supporting base 25 are provided with grooves, and the positioning slide plate 33 is located inside the grooves.

[0040] A method for using a spraying device for producing a machining center shield, comprising the following steps:

[0041] S1. First, the shield plate 3 is stacked and placed inside the collecting chamber 13. The shield plate 3 can be prevented from falling by setting the first blocking frame 18. Then, the driving motor 26 can be started to drive the screw rod 27 to rotate, so that the supporting cross frame 8 can drive the receiving bracket 6 to move to the rear end;

[0042] S2, after that, when the side end bracket 5 squeezes the connecting rope 15 and stretches it to the limit position, the receiving bracket 6 can be vertically aligned with the collecting cavity 13, and at the same time, the first blocking frame 18 will move outward, so that the shield plate 3 can fall onto the receiving bracket 6, completing the supply of the shield plate 3, and then, when the supporting cross frame 8 moves to the front end, the connecting rope 15 can be released, and the second blocking frame 20 can be inserted into the collecting cavity 13, thereby preventing the shield plate 3 inside the collecting cavity 13 from falling down in advance;

[0043] S3. Finally, when the receiving bracket 6 drives the shield plate 3 to pass through the paint spray gun 28 and the heating rack 32 in sequence, it can go through the painting and drying work. Then, when the receiving bracket 6 moves to the extreme position toward the front end, the guide rod 7 can contact the front guide frame 31, so that the paddle 4 can drive the rear end of the contact bottom rod 9 to rotate upward, so that the shield plate 3 can slide along the surface of the contact bottom rod 9 to the guide inclined plate 29, completing the discharge work of the shield plate 3.

[0044] The working principle of Example 1 is as follows: when in use, the shield plate 3 is first stacked and placed inside the collecting chamber 13. When the first blocking frame 18 is kept in a normal state, it can be located at the bottom of the collecting chamber 13, so that the shield plate 3 can be prevented from falling from the bottom of the collecting chamber 13. Subsequently, the driving motor 26 can be turned on to drive the screw rod 27 to rotate clockwise, so that the supporting cross frame 8 can be displaced to the rear end. When the supporting cross frame 8 moves to the rear end, the side end bracket 5 can be driven to contact the connecting rope 15. The connecting rope 15 is installed between the L-shaped side frame 14 and the first blocking frame 18, so that when the connecting rope 15 is squeezed, the connecting rope 15 can drive the first blocking frame 18 to move to the end away from the collecting chamber 13. At the same time, when the first blocking frame 18 is displaced, it can drive The first rack 19 moves at the bottom end of the gear 21, thereby driving the second rack 22 to move toward one end close to the collecting chamber 13, so that the second blocking frame 20 can be inserted into the interior of the collecting chamber 13. The spacing between the second blocking frame 20 and the first blocking frame 18 is equal to the thickness of the shield plate 3, and the surface of the second blocking frame 20 close to the collecting chamber 13 is inclined at 15°. When the second blocking frame 20 enters the interior of the collecting chamber 13, it can be inserted into the bottom end of the second shield plate 3 in the collecting chamber 13, thereby preventing the upper shield plate 3 in the collecting chamber 13 from falling down prematurely. When the connecting rope 15 is squeezed to the limit position, the supporting cross frame 8 can drive the receiving bracket 6 to move to be vertically aligned with the bottom end of the collecting chamber 13, thereby collecting The shield plate 3 at the bottom end of the cavity 13 can fall onto the contact bottom rod 9, completing the work of placing the shield plate 3 on the contact bottom rod 9. Subsequently, the drive motor 26 can be started to drive the screw rod 27 to rotate counterclockwise, so that the support cross frame 8 can be displaced to the front end, and the positioning slide plate 33 slides in the groove inside the support base frame 25, so that the shield plate 3 can be supported to move in a straight line. When the side end bracket 5 is out of contact with the connecting rope 15, the elasticity of the return spring 37 will drive the second blocking frame 20 to move toward the end away from the collection cavity 13. At the same time, the second blocking frame 20 can drive the gear 21 to rotate through the second rack 22, so that the first rack 19 can drive the first blocking frame 18 to move toward the end close to the collection cavity 13, so that the first blocking frame 18 can A barrier is formed at the bottom end of the collecting chamber 13 to prevent the shield plate 3 inside the collecting chamber 13 from falling downward. Subsequently, when the shield plate 3 moves to be vertically aligned with the paint spray gun 28, the paint spray gun 28 can be turned on. The paint spray gun 28 adopts a double-layer structure so that the shield plate 3 can be sprayed with paint on the upper and lower surfaces when passing through the paint spray gun 28. Subsequently, when the shield plate 3 enters the bottom end of the heating rack 32, the heating rack 32 can be turned on to roast the upper and lower surfaces of the shield plate 3, thereby quickly drying the paint on the surface of the shield plate 3. Subsequently, when the paint is completely dry, the supporting cross frame 8 can drive the shield plate 3 to continue to move toward the front end until the guide rod 7 contacts the front guide frame 31, so that the front end of the guide rod 7 can be rotated and tilted downward along the rear end bottom of the front guide frame 31.Thus, the rear end of the guide rod 7 can drive the paddle 4 to tilt upward, and the front end bottom of the contact bottom rod 9 is rotated and installed on the inner front end of the receiving bracket 6, so that the contact bottom rod 9 can rotate upward with the front end bottom of the receiving bracket 6 as the base point. When the contact bottom rod 9 maintains an inclined posture, the shield plate 3 will slide downward along the surface of the contact bottom rod 9 to the guide inclined plate 29. At the same time, the setting of the protective side plate 30 can ensure that the shield plate 3 is discharged in a straight line on the guide inclined plate 29 to complete the discharge of the shield plate 3. Moreover, when the supporting cross frame 8 is reset to the rear end, the guide rod 7 can be driven to disengage from the front guide frame 31, and the contact bottom rod 9 will rotate downward and reset by its own weight until the contact bottom rod 9 fits with the inner bottom end of the receiving bracket 6, so that the contact bottom rod 9 can be placed in a horizontal state. Moreover, when the contact bottom rod 9 is reset, the paddle 4 can be squeezed and displaced downward at the same time, so that the guide rod 7 can be reset synchronously, so that the guide rod 7 can contact the front guide frame 31 again to complete the work.

[0045] Example 2

[0046] On the basis of Example 1, Figure 8 As shown, the support base 25 also includes bolts 34, vertical rods 35 and a connecting base 36. The bolts 34 are symmetrically rotatably installed on both sides of the top of the support base 25. The connecting base 36 is threadedly sleeved on the outer ring of the bolts 34. The vertical rods 35 are symmetrically fixedly installed on both sides of the top of the support base 25, and the vertical rods 35 pass through the interior of the connecting base 36.

[0047] When implementing this embodiment, the connecting base 36 is threadedly sleeved on the outer ring of the bolt 34, and the bolt 34 can be screwed and rotated to drive the connecting base 36 to move up and down, so that the distance between the heating frame 32 and the shield plate 3 can be adjusted. At the same time, the connecting base 36 is slidably sleeved on the outer ring of the vertical rod 35, so that the connecting base 36 can drive the heating frame 32 to move up and down in a straight line, thereby improving the docking accuracy of the heating frame 32 and the shield plate 3 and completing the work.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spraying device for producing a shield of a machining center, comprising a positioning component (2), a displacement device (1) is slidably inserted inside the positioning component (2), shield plates (3) are respectively placed at the top of the displacement device (1) and inside the positioning component (2), and characterized in that: The displacement device (1) comprises a paddle (4), a side end bracket (5), a receiving bracket (6), a guide rod (7), a supporting cross frame (8), a contact bottom rod (9) and a positioning slide plate (33), wherein the side end bracket (5) is fixedly mounted on the top of both ends of the supporting cross frame (8), the positioning slide plate (33) is fixedly mounted on the opposite end of the side end bracket (5), the receiving bracket (6) is fixedly mounted on the side end of the positioning slide plate (33) away from the side end bracket (5), the front end bottom of the contact bottom rod (9) is rotatably mounted on the inner front end of the receiving bracket (6), the guide rod (7) is rotatably mounted on the side end of the receiving bracket (6) close to the positioning slide plate (33), and the paddle (4) is fixedly mounted on the bottom rear end of the guide rod (7).

2. The spraying device for producing a machining center shield according to claim 1 is characterized in that: The positioning component (2) comprises a receiving device (10) and a guiding device (11), wherein the receiving device (10) is fixedly mounted on the rear end bottom of the guiding device (11).

3. The spraying device for producing a machining center shield according to claim 2 is characterized in that: The receiving device (10) comprises a connecting rear rod (12), a collecting chamber (13), an L-shaped side frame (14), a connecting rope (15), a first synchronization rod (16), a first support rod (17), a first blocking frame (18), a first rack (19), a second blocking frame (20), a gear (21), a second rack (22), a second synchronization rod (23), a second support rod (24) and a reset spring (37). The connecting rear rod (12) is fixedly mounted at an equal distance at the bottom of the rear end of the collecting chamber (13). The second support rod (24) and the first support rod (17) are symmetrically fixedly mounted on both sides of the collecting chamber (13). The second support rod (24) is located above the first support rod (17). The second synchronization rod (23) is slidably sleeved on the second support rod (24). The second blocking frame (20) is symmetrically fixedly mounted at the bottom of the second synchronization rod (23). The reset spring (37) is symmetrically fixedly mounted. The first synchronous rod (16) is slidably sleeved on the first support rod (17); the first blocking frame (18) is symmetrically fixedly mounted on the bottom end of the first synchronous rod (16); the second rack (22) is fixedly mounted on the bottom end of the second blocking frame (20); the first rack (19) is fixedly mounted on the top end of the first blocking frame (18); the gear (21) is symmetrically rotationally mounted on both sides of the collecting chamber (13); and the gear (21) is located between the second rack (22) and the first rack (19); the L-shaped side frame (14) is fixedly mounted on the bottom ends of both sides of the collecting chamber (13); and the L-shaped side frame (14) is located behind the second support rod (24); and the connecting rope (15) is fixedly mounted between the L-shaped side frame (14) and the first blocking frame (18).

4. The spraying device for producing a machining center shield according to claim 3 is characterized in that: The guide device (11) comprises a support base (25), a drive motor (26), a screw rod (27), a paint spray gun (28), a guide ramp (29), a protective side plate (30), a front guide frame (31) and a heating frame (32), wherein the drive motor (26) is fixedly mounted at the bottom of the rear end of the support base (25), the guide ramp (29) is fixedly mounted at the front end of the support base (25), the protective side plate (30) is fixedly mounted on both sides of the top of the guide ramp (29), the screw rod (27) is fixedly mounted at the front end center of the drive motor (26), the front guide frame (31) is fixedly mounted at the inner front end of the support base (25), the heating frame (32) and the paint spray gun (28) are symmetrically fixedly mounted inside the support base (25), and the heating frame (32) is located in front of the paint spray gun (28).

5. The spraying device for producing a machining center shield according to claim 4 is characterized in that: The supporting cross frame (8) is threadedly sleeved on the outer ring of the screw rod (27), the bottom end of the connecting rear rod (12) is connected to the rear end bottom of the supporting base frame (25), and the positioning slide plate (33) is slidably inserted into the interior of the supporting base frame (25).

6. The spraying device for producing a machining center shield according to claim 5 is characterized in that: The paddle (4) is arranged in an L-shape, and the bottom end of the paddle (4) is aligned with the bottom rear end of the contact bottom rod (9), the front end bottom of the contact bottom rod (9) is rotatably mounted on the inner front end of the receiving bracket (6), the front end surface of the guide rod (7) is arranged to be inclined at 45 degrees, and the guide rod (7) is aligned with the front guide frame (31).

7. The spraying device for producing a machining center shield according to claim 6 is characterized in that: The rear end bottom of the front guide frame (31) is inclined at 45 degrees, the side end bracket (5) is aligned with the connecting rope (15), and the two sides of the collection chamber (13) are symmetrically provided with plug holes adapted to the second blocking frame (20), the gap between the first blocking frame (18) and the second blocking frame (20) is equal to the thickness of the shield plate (3), and the second blocking frame (20) is inclined at 15 degrees near the top of the side end of the collection chamber (13).

8. The spraying device for producing a machining center shield according to claim 7 is characterized in that: The paint spray gun (28) and the heating rack (32) are located at the top and bottom of the receiving bracket (6), and grooves are formed at the top and bottom of the inner part of the supporting base (25), and the positioning slide plate (33) is located inside the grooves.

9. The spraying device for producing a machining center shield according to claim 8, characterized in that: The support base (25) further comprises bolts (34), vertical rods (35) and a connecting base (36), wherein the bolts (34) are symmetrically rotatably mounted on both sides of the top of the support base (25), the connecting base (36) is threadedly sleeved on the outer ring of the bolts (34), the vertical rods (35) are symmetrically fixedly mounted on both sides of the top of the support base (25), and the vertical rods (35) penetrate the interior of the connecting base (36).

10. A method for using a spray coating device for producing a machining center shield, using the spray coating device for producing a machining center shield as claimed in claim 9, characterized in that: It includes the following steps: S1. First, the shield plate (3) is stacked and placed inside the collecting chamber (13). The shield plate (3) can be prevented from falling by setting the first blocking frame (18). Then, the driving motor (26) can be started to drive the screw rod (27) to rotate, so that the supporting cross frame (8) can drive the receiving bracket (6) to move toward the rear end; S2. Afterwards, when the side bracket (5) squeezes the connecting rope (15) and stretches it to the limit position, the receiving bracket (6) can be vertically aligned with the collecting chamber (13). At the same time, the first blocking frame (18) will move outward, so that the shield plate (3) can fall onto the receiving bracket (6), completing the supply of the shield plate (3). Subsequently, when the supporting cross frame (8) moves toward the front end, the connecting rope (15) can be released, and the second blocking frame (20) can be inserted into the interior of the collecting chamber (13), thereby preventing the shield plate (3) inside the collecting chamber (13) from falling downward in advance; S3. Finally, when the receiving bracket (6) drives the shield plate (3) to pass through the paint spray gun (28) and the heating rack (32) in sequence, the paint spraying and drying work can be carried out. Subsequently, when the receiving bracket (6) moves to the extreme position toward the front end, the guide rod (7) can contact the front guide rack (31), so that the paddle (4) can drive the rear end of the contact bottom rod (9) to rotate upward, so that the shield plate (3) can slide along the surface of the contact bottom rod (9) to the guide inclined plate (29), and the discharge work of the shield plate (3) is completed.

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