Uniform painting device for canvas primer

Abstract

The utility model relates to the technical field of painting canvas primer coating, in particular to a uniform painting canvas primer coating device which comprises a box body, first stepping motors are symmetrically and fixedly installed on the two side walls of the box body, first ball screws are horizontally arranged in the box body in a penetrating mode, and the outer ends of the first ball screws are fixedly connected with output shafts of the corresponding first stepping motors; a first sliding rod is transversely fixed in the box body, the inner end of the first ball screw is connected with a connecting shaft sleeve, and the two ends of the connecting shaft sleeve are rotationally connected with the first ball screw. The two painting rollers move in a staggered manner, so that the contact surfaces of the two painting rollers and the canvas can be overlapped, the canvas area between the two painting rollers can be fully contacted with the painting rollers, and the phenomenon of non-uniform painting of the primer of the canvas is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to picture frame bottom paint daub technical field more specifically, relate to a picture frame bottom paint even daub device. BACKGROUND

[0002] Picture frame, as a kind of heavy texture woven fabric, plays a vital role in the field of painting.In the creation, painter will cut the picture frame with flat head nail and carefully straighten to ensure the flatness and tightness of painting surface, which is fixed on the frame or the frame of the easel border.Picture frame surface usually will be painted a layer of white primer, to provide an ideal substrate for painting.Standard oil painting frame is usually sold in roll unit, which is made of strong and specially woven flax material, which is not only durable, but also can add unique texture and charm to the painting.

[0003] The picture frame bottom paint daub device in prior art will exist the situation that local primer is unevenly daubed on picture frame during use, such as the document with the announcement number CN215507488U in prior art, a silk picture frame coating even daub device is disclosed, the two sleeves are horizontally moved in opposite directions during operation.However, due to the gap between the rollers at the bottom of the sleeve, the picture frame area between the two rollers cannot be in full contact with the rollers, which leads to uneven primer daubing in the area. UTILITY MODEL CONTENTS

[0004] The utility model provides a picture frame bottom paint even daub device, by making two rollers staggered movement, the contact surface of two rollers and picture frame can be overlapped, and then the picture frame area between two rollers can be in full contact with the rollers, to avoid uneven primer daubing on picture frame.

[0005] The utility model provides a picture frame bottom paint even daub device, including:

[0006] Box body, the both sides wall of box body is fixedly installed with first stepper motor, first ball screw is horizontally arranged in the box body, and the outer end of each first ball screw is fixedly connected with the output shaft of corresponding first stepper motor;First sliding rod is transversely fixed in the box body, and the inner end of first ball screw is connected with connecting shaft sleeve, and the both ends of connecting shaft sleeve are rotatably connected with first ball screw;

[0007] Coating assembly, which is arranged in the box body, includes:

[0008] Slide plate, which is fixedly installed on the outer wall of ball nut of first ball screw, is slidably connected with first sliding rod;

[0009] Hinge seat, which is vertically fixedly installed at the bottom of each slide plate;

[0010] A rotating shaft is horizontally arranged in each hinge base and is rotationally connected with the hinge base;

[0011] A torsion spring is sleeved on each rotating shaft;

[0012] A connecting arm is fixed to the free end of each rotating shaft;

[0013] A coating roller is rotationally connected with two symmetrically arranged connecting arms at both ends thereof.

[0014] Preferably, one end of the torsion spring is fixedly connected with the rotating shaft, and the other end of the torsion spring is fixedly connected with the hinge base.

[0015] Preferably, a second stepper motor is fixedly connected with the outer wall of the box body, and a second ball screw is rotationally connected with the inner wall of the box body, and the output end of the second stepper motor is fixedly connected with the second ball screw.

[0016] Preferably, a second sliding rod is fixedly connected with the inner wall of the box body, and a nozzle is slidingly connected with the outer wall of the second sliding rod, and the nozzle is fixedly installed on the outer wall of a ball nut of the second ball screw.

[0017] Preferably, a liquid collecting groove is formed in the bottom of the inner wall of the box body, two electric sliding rails are fixedly connected with the inner wall of the liquid collecting groove, and a liquid discharge pipe is fixedly connected with the outer wall of the box body and extends into the liquid collecting groove.

[0018] Preferably, a supporting plate is arranged in the box body, the bottom of the supporting plate is fixedly connected with the sliding part of the electric sliding rail, and the bearing surface of the supporting plate is a V-shaped flow guide structure with an opening facing downward, comprising two inclined side walls extending outward from top to bottom, and a first arc surface is formed at the joint of the two inclined side walls and protrudes upward.

[0019] Preferably, two parallel fixed grooves are formed in the top of the supporting plate along the length direction thereof, the inner wall of the fixed groove is recessed to form an arc-shaped pressing groove, and a second arc surface is arranged at the bottom edge of the inclined side wall on both sides of the supporting plate.

[0020] Preferably, the second arc surface and the arc-shaped segment of the pressing groove are smoothly connected to form an S-shaped structure, and the side wall of the fixed groove extends to the edge of the supporting plate and is in communication with the pressing groove and the second arc surface on the corresponding side.

[0021] Preferably, two pressing plates are arranged in the fixed groove, the arc end of each pressing plate is arranged towards the pressing groove, two guide rods are fixedly connected with the outer wall of each pressing plate, the end of each guide rod penetrates through the supporting plate and is slidingly connected with the supporting plate, an adjusting screw is rotationally connected with the outer wall of each pressing plate, and the end of the adjusting screw penetrates through the supporting plate and is threadedly connected with the supporting plate.

[0022] By means of the above technical scheme, the present application has the following beneficial effects:

[0023] 1. The staggered movement of the two coating rollers allows the contact surfaces between the two rollers and the canvas to overlap, thus ensuring that the canvas area between the two rollers is in full contact with the rollers and preventing uneven application of the primer to the canvas.

[0024] 2. The electric slide rail moves the tray to the outside of the box. The canvas is laid on top of the tray, and both ends of the canvas are placed in the fixing grooves. By rotating the adjusting screw, the arc end of the pressure plate is pushed to press the canvas into the pressure groove. This design makes it easy for the operator to fix and straighten the ends of the canvas. The S-shaped structure formed by the combination of the second arc surface and the pressure groove can improve the firmness of the canvas installation. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a partial structural schematic diagram of the present invention;

[0027] Figure 3 This is a schematic diagram of the installation structure of the tray of this utility model;

[0028] Figure 4 This is a partial structural schematic diagram of the pallet of this utility model;

[0029] Figure 5 This is a schematic diagram of the installation structure of the coating roller of this utility model;

[0030] Figure 6 This is a schematic diagram of the installation structure of the connecting arm of this utility model.

[0031] In the diagram: 1. Box body; 2. Liquid collection tank; 3. Drain pipe; 4. Support plate; 5. First arc surface; 6. Fixing groove; 7. Pressure plate; 8. Guide rod; 9. Adjusting screw; 10. Pressure groove; 11. Second arc surface; 12. Slide plate; 13. Hinge seat; 14. Rotating shaft; 15. Torsion spring; 16. Connecting arm; 17. Coating roller; 18. First stepper motor; 19. First ball screw; 20. Coupling sleeve; 21. First slide rod; 22. Second stepper motor; 23. Second ball screw; 24. Second slide rod; 25. Nozzle; 26. Electric slide rail. Detailed Implementation

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0033] like Figure 1 ,Figure 2 , Figure 5 and Figure 6 As shown, a canvas primer uniform coating device includes a housing 1. A first stepper motor 18 is symmetrically fixedly installed on both side walls of the housing 1. A first ball screw 19 is horizontally inserted inside the housing 1, and the outer end of each first ball screw 19 is fixedly connected to the output shaft of the corresponding first stepper motor 18. A first slide rod 21 is horizontally fixed inside the housing 1. A connecting sleeve 20 is connected to the inner end of the first ball screw 19, and the two ends of the connecting sleeve 20 are rotatably connected to the first ball screw 19 respectively.

[0034] The coating assembly, which is set inside the housing 1, includes a slide plate 12, a hinge seat 13, a rotating shaft 14, a torsion spring 15, a connecting arm 16, and a coating roller 17. The slide plate 12 is fixedly installed on the outer wall of the ball nut on the first ball screw 19, and the slide plate 12 is slidably connected to the first slide rod 21; the hinge seat 13 is vertically fixedly installed at the bottom of each slide plate 12.

[0035] A rotating shaft 14 is horizontally inserted through each hinge seat 13, and the rotating shaft 14 is rotatably connected to the hinge seat 13; a torsion spring 15 is sleeved on each rotating shaft 14, one end of the torsion spring 15 is fixedly connected to the rotating shaft 14, and the other end of the torsion spring 15 is fixedly connected to the hinge seat 13; the preload of the torsion spring 15 keeps the coating roller 17 in contact with the canvas surface, ensuring the uniformity of the coating thickness; when the coating roller 17 crosses the V-shaped guide structure of the support plate 4, the torque of the torsion spring 15 can prevent the coating roller 17 from detaching from the canvas, avoiding the generation of strip-shaped uncoated areas;

[0036] The connecting arm 16 is fixed to the free end of each rotating shaft 14; the two ends of the coating roller 17 are respectively rotatably connected to the two symmetrically arranged connecting arms 16.

[0037] By cooperating with the first ball screw 19 and the two stepper motors 18 arranged symmetrically, and combined with the linkage design of the coupling sleeve 20, the bidirectional independent drive of the coating roller 17 is realized, so that the coating roller 17 can alternately cover the canvas surface and eliminate the seam marks of unidirectional coating through the staggered motion trajectory.

[0038] In some embodiments, such as Figure 2 As shown, a second stepper motor 22 is fixedly connected to the outer wall of the housing 1, and a second ball screw 23 is rotatably connected to the inner wall of the housing 1. The output end of the second stepper motor 22 is fixedly connected to the second ball screw 23. A second slide rod 24 is fixedly connected to the inner wall of the housing 1, and a nozzle 25 is slidably connected to the outer wall of the second slide rod 24. The nozzle 25 is fixedly installed on the outer wall of the ball nut on the second ball screw 23.

[0039] The second stepper motor 22 drives the second ball screw 23 to rotate, the nozzle 25 slides along the outer wall of the second slide bar 24, and the external delivery pump sprays the primer through the nozzle 25 onto the surface of the canvas and coating roller 17.

[0040] In some embodiments, such asFigure 1 and Figure 2 As shown in the drawings, the inner wall of the box 1 is provided with a liquid collecting groove 2, the inner wall of the liquid collecting groove 2 is fixedly connected with two electric sliding rails 26, the outer wall of the box 1 is fixedly connected with a liquid discharge pipe 3, the end of the liquid discharge pipe 3 extends into the liquid collecting groove 2, the box 1 is provided with a supporting plate 4, the bottom of the supporting plate 4 is fixedly connected with the sliding part on the electric sliding rail 26;

[0041] The primer flows to the liquid collecting groove 2, and the liquid can be discharged through the liquid discharge pipe 3.

[0042] In some embodiments, as shown in Figure 3 and Figure 4 The carrying surface of the supporting plate 4 is a V-shaped flow guide structure with an opening facing downward, which includes two inclined side walls extending outward from top to bottom, and a first arc surface 5 is formed at the joint of the two inclined side walls and protrudes upward, two parallel fixed grooves 6 are formed on the top of the supporting plate 4 along the length direction, the inner side wall of the fixed groove 6 is recessed to form an arc-shaped pressing groove 10, a second arc surface 11 is arranged at the bottom edge of the inclined side wall on both sides of the supporting plate 4, the second arc surface 11 is smoothly connected with the arc-shaped section of the pressing groove 10 to form an S-shaped structure, and the side wall of the fixed groove 6 extends to the edge of the supporting plate 4 and is in communication with the pressing groove 10 and the second arc surface 11 on the corresponding side;

[0043] The inclined side walls of the V-shaped flow guide structure make the excess primer flow naturally to the liquid collecting groove 2 to realize liquid discharge and avoid the accumulation of paint leading to the penetration of the back of the canvas;

[0044] The S-shaped fixed structure forms a wavy pre-tensioning state of the canvas in the fixed groove 6 through three-point pressing, which eliminates the local relaxation problem under the traditional flat tensioning mode;

[0045] In some embodiments, as shown in Figure 3 and Figure 4 Two pressing plates 7 are arranged in the fixed groove 6, the arc end of the pressing plate 7 is arranged towards the pressing groove 10, two guide rods 8 are fixedly connected to the outer wall of the pressing plate 7, the end of the guide rod 8 penetrates through the supporting plate 4 and is in sliding connection with the supporting plate 4, and an adjusting screw 9 is rotatably connected to the outer wall of the pressing plate 7, the end of the adjusting screw 9 penetrates through the supporting plate 4 and is in threaded connection with the supporting plate 4.

[0046] By rotating the adjusting screw 9, the arc end of the pressing plate 7 is pushed to press the canvas in the pressing groove 10 to fix and straighten the canvas;

[0047] Working principle: the electric sliding rail 26 drives the supporting plate 4 to move, the supporting plate 4 is moved to the outside of the box 1, the canvas is laid on the top of the supporting plate 4, the two ends of the canvas are respectively placed in the fixed groove 6, the arc end of the pressing plate 7 is pushed to press the canvas in the pressing groove 10 by rotating the adjusting screw 9, the canvas is fixed and straightened, and the electric sliding rail 26 moves the supporting plate 4 into the box 1;

[0048] The second stepper motor 22 drives the second ball screw 23 to rotate, the nozzle 25 slides along the outer wall of the second slide rod 24, and the external conveying pump sprays the primer to the surface of the canvas and the coating roller 17 through the nozzle 25;

[0049] One of the first stepper motors 18 drives the first ball screw 19 to rotate, and the slide plate 12 on the same side of the first stepper motor 18 slides along the outer wall of the first slide rod 21; the slide plate 12 drives the coating roller 17 to move through the hinge base 13 and the connecting arm 16, and the coating roller 17 rolls along the top of the supporting plate 4 to press the canvas, so that the coating roller 17 can move to the other inclined wall of the supporting plate 4 to uniformly apply the paint on the canvas; the coating roller 17 can fully contact the canvas under the torsion of the torsion spring 15; the first stepper motor 18 reversely rotates to move the coating roller 17 to the initial position.

[0050] The other first stepper motor 18 drives the other first ball screw 19 to rotate, so that the other coating roller 17 moves to roll along the top of the other side of the supporting plate 4 to apply the paint on the canvas; at this time, the two coating rollers 17 move staggeredly, so that the contact surfaces of the two coating rollers 17 can overlap, and the canvas area between the two coating rollers 17 can fully contact the coating rollers 17.

[0051] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this; any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A canvas primer uniformity applicator characterized by The utility model relates to a kind of coating machine, including: Box (1);The first step motor (18) of symmetrical fixed installation of both side walls of the box (1) is equipped with, first ball screw (19) is horizontally arranged in the box (1), the outer end of each first ball screw (19) is fixedly connected with the output shaft of corresponding first step motor (18);First sliding rod (21) is fixedly connected in the box (1), the inner end of first ball screw (19) is connected with connecting shaft sleeve (20), and connecting shaft sleeve (20) both ends are rotatably connected with first ball screw (19). Coating assembly, which is provided in the box (1), includes: Slide plate (12), fixedly installed on the outer wall of ball nut of first ball screw (19), the slide plate (12) is slidably connected with the first sliding rod (21); Hinge base (13), vertically fixedly installed at the bottom of each slide plate (12); Shaft (14), horizontally arranged in each hinge base (13), the shaft (14) is rotatably connected with the hinge base (13); Torsional spring (15), sleeved on each shaft (14); Connecting arm (16), fixed to the free end of each shaft (14); Coating roller (17), both ends are rotatably connected with two symmetrically arranged connecting arms (16).

2. A device for uniform application of a gesso primer to a canvas according to claim 1, characterized in that: One end of the torsional spring (15) is fixedly connected with the shaft (14), and the other end of the torsional spring (15) is fixedly connected with the hinge base (13).

3. A device for uniform application of a gesso primer to a canvas according to claim 2, wherein: The second step motor (22) is fixedly connected to the outer wall of the box (1), the second ball screw (23) is rotatably connected to the inner wall of the box (1), and the output end of the second step motor (22) is fixedly connected with the second ball screw (23).

4. A device for uniform application of a gesso primer to a canvas according to claim 3, wherein: The second sliding rod (24) is fixedly connected to the inner wall of the box (1), the outer wall of the second sliding rod (24) is slidably connected with the nozzle (25), and the nozzle (25) is fixedly installed on the outer wall of the ball nut of the second ball screw (23).

5. A device for uniform application of a gesso primer to a canvas according to claim 4, wherein: The inner wall of the box (1) is provided with a liquid collecting groove (2) at the bottom, the inner wall of the liquid collecting groove (2) is fixedly connected with two electric sliding rails (26), the outer wall of the box (1) is fixedly connected with a drain pipe (3), and the end of the drain pipe (3) extends into the liquid collecting groove (2).

6. A device for uniform application of a gesso primer to a canvas according to claim 5, wherein: The box (1) is provided with a supporting plate (4), the bottom of the supporting plate (4) is fixedly connected with the sliding part on the electric sliding rail (26), the bearing surface of the supporting plate (4) is a V-shaped flow guide structure with an opening facing downward, including two inclined side walls extending outward from top to bottom, and a first arc surface (5) is formed at the joint of the two inclined side walls and protrudes upward.

7. A device for uniform application of a gesso primer to a canvas according to claim 6, wherein: Two parallel distributed fixed grooves (6) are formed on the top of the supporting plate (4) along the length direction, the inner side wall of the fixed groove (6) is recessed to form an arc-shaped pressing groove (10), and the bottom edge of the inclined side wall on both sides of the supporting plate (4) is provided with a second arc surface (11).

8. A device for uniform application of a gesso primer to a canvas according to claim 7, wherein: The second arc surface (11) and the arc segment of the pressing groove (10) are smoothly connected, and the combination constitutes an S-shaped structure, and the side wall of the fixed groove (6) extends to the edge of the supporting plate (4) and communicates with the pressing groove (10) and the second arc surface (11) on the corresponding side.

9. A device for uniform application of a gesso primer to a canvas according to claim 8, wherein: Two pressing plates (7) are arranged in the fixing groove (6), arc ends of the pressing plates (7) are arranged towards the pressing groove (10), outer walls of the pressing plates (7) are fixedly connected with two guide rods (8), end portions of the guide rods (8) penetrate through the supporting plate (4) and are slidably connected with the supporting plate (4), outer walls of the pressing plates (7) are rotatably connected with adjusting screws (9), end portions of the adjusting screws (9) penetrate through the supporting plate (4) and are threadedly connected with the supporting plate (4).

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