阅读说明：本技术 一种新能源电机外壳涂料浸涂装置 (New forms of energy motor housing coating dip-coating device ) 是由 邹玉丹 于 2021-08-23 设计创作，主要内容包括：本发明涉及新能源附属装置的技术领域,特别是涉及一种新能源电机外壳涂料浸涂装置,其结构简单,可自动对泡沫模型进行浸涂耐火材料,减小操作者的劳动强度,提高加工效率；包括：盛放箱,盛放箱内部中空且顶部连通有开口,盛放箱用于盛放耐火涂料；支撑机构,用于放置泡沫模型；导向机构,包括连接板,连接板固定安装在盛放箱上,连接板上设置有移动孔和导向孔,移动孔呈竖直状,导向孔包括竖直段以及与竖直段顶部连通的圆弧形段；驱动机构,包括气缸,用于驱动支撑机构进行动作。(The invention relates to the technical field of new energy accessory devices, in particular to a new energy motor shell coating dip-coating device which is simple in structure, can automatically dip-coat a foam model with a refractory material, reduces the labor intensity of an operator and improves the processing efficiency; the method comprises the following steps: the storage box is hollow, the top of the storage box is communicated with an opening, and the storage box is used for storing refractory paint; the supporting mechanism is used for placing the foam model; the guide mechanism comprises a connecting plate, the connecting plate is fixedly arranged on the containing box, a moving hole and a guide hole are formed in the connecting plate, the moving hole is vertical, and the guide hole comprises a vertical section and an arc-shaped section communicated with the top of the vertical section; and the driving mechanism comprises an air cylinder and is used for driving the supporting mechanism to act.)

1. The utility model provides a new forms of energy motor housing coating dip-coating device which characterized in that includes:

the fireproof coating storage box comprises a storage box (1), wherein the interior of the storage box (1) is hollow, the top of the storage box (1) is communicated with an opening, and the storage box (1) is used for storing fireproof coating;

the supporting mechanism is used for placing the foam model;

the guide mechanism comprises a connecting plate (2), the connecting plate (2) is fixedly arranged on the containing box (1), a moving hole (3) and a guide hole are formed in the connecting plate (2), the moving hole (3) is vertical, and the guide hole comprises a vertical section (4) and an arc-shaped section (5) communicated with the top of the vertical section (4);

the driving mechanism comprises an air cylinder (6) and is used for driving the supporting mechanism to act.

2. The coating dip-coating device for the new energy motor housing is characterized in that the driving mechanism further comprises a fixing plate (7) fixedly connected with the containing box (1), a connecting block (8) is mounted on the fixing plate (7), and the mounting end of the air cylinder (6) is rotatably connected with the connecting block (8) through a connecting shaft (9).

3. The coating dip-coating device for the new energy motor housing according to claim 2, wherein the supporting mechanism comprises a guide shaft (10) rotatably mounted at the telescopic end of the air cylinder (6), a first guide bearing (11) is arranged on the guide shaft (10), the first guide bearing (11) is in contact with the inner wall of the guide hole, and a connecting frame (12) shaped like a Chinese character '7' is rotatably mounted at the other end of the guide shaft (10);

the other end of the connecting frame (12) is fixedly connected with a transition frame (13), the other end of the transition frame (13) is fixedly connected with a supporting column (14), and the upper half area of the supporting column (14) is fixedly connected with a limiting assembly for limiting the foam model;

the support column (14) is hollow, an opening is communicated with one side, close to the connecting plate (2), of the support column (14), a sliding column (15) is slidably mounted inside the support column (14), a push plate (16) is fixedly connected onto the sliding column (15), the push plate (16) extends out of the support column (14) along the opening, a support plate (17) is fixedly connected onto the support column (14), a telescopic rod (18) is fixedly connected between the support plate (17) and the push plate (16), a first support ring (19) is fixedly connected onto the fixed end of the telescopic rod (18), a second support ring (20) is fixedly connected onto the telescopic rod (18), a first reset spring (21) is sleeved onto the telescopic rod (18), and two ends of the first reset spring (21) are respectively contacted with the first support ring (19) and the second support ring (20);

four first fixing blocks (22) are equidistantly mounted at the bottom end of the sliding column (15), an inclined rod (23) is connected to the first fixing blocks (22) in an upper shaft mode, the other end of the inclined rod (23) is connected with a second fixing block (24) in a shaft mode, a cross arm (25) used for supporting a foam model is fixedly mounted on the second fixing block (24), the other end of the cross arm (25) is connected with a third fixing block (26) in a shaft mode, and the third fixing block (26) is fixed to the bottom end of the supporting column (14);

a support shaft (27) is rotatably mounted at the corner of the connecting frame (12), a second guide bearing (28) which is in contact with the inner wall of the moving hole (3) is arranged on the support shaft (27), two groups of V-shaped rails (29) are fixedly connected to the connecting plate (2), and V-shaped wheels (30) which are in sliding fit with the V-shaped rails (29) are mounted on the support shaft (27);

a fixing frame (31) is fixedly installed on the connecting plate (2), a roller (32) is rotatably installed at the other end of the fixing frame (31), and the roller (32) is used for preventing the push plate (16) from rotating.

4. The coating dip-coating device for the new energy motor housing according to claim 3, wherein the supporting mechanism further comprises a connecting column (33) fixed on the left side and the right side of the supporting column (14), an adjusting rod (34) is slidably mounted on the connecting column (33), a first locking bolt (35) for fixing the position of the adjusting rod (34) is in threaded connection with the connecting column (33), and one end of the adjusting rod (34) far away from the supporting column (14) is arc-shaped.

5. The coating dip-coating device for the new energy motor housing according to claim 1, further comprising a material receiving mechanism, wherein the material receiving mechanism comprises a material receiving box (36) connected with the containing box (1), the material receiving box (36) is hollow and has an open top, supporting legs are mounted at four corners of the bottom of the material receiving box (36), the bottom of the material receiving box (36) is in an inverted cone shape, and the bottom of the material receiving box (36) is communicated with a discharge valve.

6. The coating dip-coating device for the new energy motor housing according to claim 2, wherein the driving mechanism further comprises a supporting block (37) fixed on the connecting plate (2), a square rod (38) is slidably mounted on the supporting block (37), an arc-shaped block (39) in contact with the guide shaft (10) is arranged at the top of the square rod (38), a second return spring (40) is sleeved on the square rod (38), and two ends of the second return spring (40) are respectively in close contact with the arc-shaped block (39) and the supporting block (37).

7. The new energy motor housing coating dip-coating device according to claim 3, characterized in that a reinforcing rod (41) is fixedly connected to the connecting frame (12).

8. The coating dip-coating device for the new energy motor housing is characterized in that the limiting assembly comprises at least three stop rods (42) connected with the supporting column (14), an adjusting rod (43) is slidably mounted on each stop rod (42), and a second locking bolt (44) used for fixing the position of the adjusting rod (43) is in threaded connection with each stop rod (42).

Technical Field

The invention relates to the technical field of new energy accessory devices, in particular to a new energy motor shell coating dip-coating device.

Background

In the field of new energy, motors are widely used. An electric machine (an electromagnetic device for realizing electric energy conversion or transmission according to the electromagnetic induction law, the electric machine is represented by a letter M (old standard is represented by D) in a circuit, the electric machine mainly plays a role in generating driving torque and serving as a power source of electric appliances or various machines, a generator is represented by a letter G in the circuit, the electric machine mainly plays a role in converting mechanical energy into electric energy, and a shell of the electric machine is an important component of the electric machine.

Motor housing adds man-hour, need go up the dip-coating fire resistant coating with the foam model, and in the prior art, adopt the manual work to arrange the foam model in scribbling the pond inside more, this kind of mode needs the continuous foam model of pushing down of operator to overturn etc. to it, so that its surperficial whole dip-coating refractory material, this kind of mode has increased operator's intensity of labour undoubtedly, and machining efficiency is not high.

Disclosure of Invention

In order to solve the technical problem, the invention provides a new energy motor shell coating dip-coating device which is simple in structure, can automatically dip-coat a foam model with a refractory material, reduces the labor intensity of an operator, and improves the processing efficiency.

The invention relates to a new energy motor shell coating dip-coating device, which comprises:

the storage box is hollow, the top of the storage box is communicated with an opening, and the storage box is used for storing refractory paint;

the supporting mechanism is used for placing the foam model;

the guide mechanism comprises a connecting plate, the connecting plate is fixedly arranged on the containing box, a moving hole and a guide hole are formed in the connecting plate, the moving hole is vertical, and the guide hole comprises a vertical section and an arc-shaped section communicated with the top of the vertical section;

and the driving mechanism comprises an air cylinder and is used for driving the supporting mechanism to act.

Preferably, actuating mechanism still include with hold case fixed connection's fixed plate, install the connecting block on the fixed plate, the cylinder installation end passes through the connecting axle with the connecting block and rotates to be connected.

Preferably, the supporting mechanism comprises a guide shaft rotatably mounted at the telescopic end of the air cylinder, a first guide bearing is arranged on the guide shaft, the first guide bearing is in contact with the inner wall of the guide hole, and a connecting frame in a 7 shape is rotatably mounted at the other end of the guide shaft;

the other end of the connecting frame is fixedly connected with a transition frame, the other end of the transition frame is fixedly connected with a supporting column, and the upper half area of the supporting column is fixedly connected with a limiting assembly for limiting the foam model;

the supporting column is hollow, an opening is communicated with one side, close to the connecting plate, of the supporting column, a sliding column is slidably mounted in the supporting column, a push plate is fixedly connected to the sliding column, the push plate extends out of the supporting column along the opening, a supporting plate is fixedly connected to the supporting column, a telescopic rod is fixedly connected between the supporting plate and the push plate, a first supporting ring is fixedly connected to the fixed end of the telescopic rod, a second supporting ring is fixedly connected to the telescopic end of the telescopic rod, a first reset spring is sleeved on the telescopic rod, and two ends of the first reset spring are respectively in contact with the first supporting ring and the second supporting ring;

four first fixed blocks are equidistantly mounted at the bottom end of the sliding column, the first fixed blocks are connected with an inclined rod in an upper shaft mode, the other end of the inclined rod is connected with a second fixed block in a shaft mode, a cross arm used for supporting the foam model is fixedly mounted on the second fixed block, the other end of the cross arm is connected with a third fixed block in a shaft mode, and the third fixed block is fixed at the bottom end of the supporting column;

a support shaft is rotatably arranged at the corner of the connecting frame, a second guide bearing which is in contact with the inner wall of the moving hole is arranged on the support shaft, two groups of V-shaped rails are fixedly connected to the connecting plate, and V-shaped wheels which are in sliding fit with the V-shaped rails are arranged on the support shaft;

the connecting plate is fixedly provided with a fixing frame, the other end of the fixing frame is rotatably provided with a roller, and the roller is used for preventing the push plate from rotating.

Preferably, the supporting mechanism further comprises a connecting column fixed on the left side and the right side of the supporting column, an adjusting rod is slidably mounted on the connecting column, a first locking bolt used for fixing the position of the adjusting rod is connected to the connecting column through threads, and one end, far away from the supporting column, of the adjusting rod is arc-shaped.

Preferably, still include receiving mechanism, receiving mechanism includes and holds the workbin that connects that the case is connected, connects inside cavity of workbin and open-top, connects four angle departments in workbin bottom and all installs the landing leg, connects the workbin bottom to be the back taper, connects workbin bottom intercommunication to have the discharge valve.

Preferably, the driving mechanism further comprises a supporting block fixed on the connecting plate, a square rod is slidably mounted on the supporting block, an arc-shaped block in contact with the guide shaft is arranged at the top of the square rod, a second return spring is sleeved on the square rod, and two ends of the second return spring are respectively in close contact with the arc-shaped block and the supporting block.

Preferably, a reinforcing rod is fixedly connected to the connecting frame.

Preferably, the limiting assembly comprises at least three stop rods connected with the supporting column, adjusting rods are slidably mounted on the stop rods, and second locking bolts used for fixing the positions of the adjusting rods are connected to the stop rods in a threaded mode.

Compared with the prior art, the invention has the beneficial effects that: hold incasement portion and place refractory coating, through actuating mechanism, guiding mechanism and supporting mechanism's mutually supporting, the operator arranges the foam model in on the supporting mechanism, but self-holding, the upset, dip-coating afterwards in the refractory coating who holds the incasement, after finishing, make the earlier rise of foam model through actuating mechanism, it is rotatory to the horizontality afterwards, it is rotatory to continue afterwards, release the foam model, the operator takes off and repairs flaw department after the release, for manual mode among the prior art, the whole process of this device only needs the user to place and take off the foam model, reduce user's intensity of labour greatly, and improve machining efficiency, and reduced the influence to user's health.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is an isometric view of FIG. 1 of the present invention;

FIG. 4 is a top perspective view of the left rear side of the concealed receiver and holding bin of FIG. 1;

FIG. 5 is a partial enlarged view of portion A of FIG. 4;

FIG. 6 is a partial enlarged view of portion A of FIG. 5;

FIG. 7 is a partial enlarged view of portion B of FIG. 5;

FIG. 8 is a partial enlarged view of portion B of FIG. 4;

FIG. 9 is a schematic front view of the connection of the connecting plate, the moving hole, the vertical section, the circular arc section, the cylinder, the transition frame, the support column, the roller, etc., when the second guide bearing is located at the top end of the moving hole and the first guide bearing is located at the junction of the vertical section and the circular arc section;

FIG. 10 is a schematic front view of the connection of the connecting plate, the moving hole, the vertical section, the circular arc section, the cylinder, the transition frame, the supporting column, the roller, and the like when the supporting column is in a horizontal state;

in the drawings, the reference numbers: 1. a containing box; 2. a connecting plate; 3. moving the hole; 4. a vertical section; 5. a circular arc section; 6. a cylinder; 7. a fixing plate; 8. connecting blocks; 9. a connecting shaft; 10. a guide shaft; 11. a first guide bearing; 12. a connecting frame; 13. a transition frame; 14. a support pillar; 15. a sliding post; 16. pushing the plate; 17. a support plate; 18. a telescopic rod; 19. a first support ring; 20. a second support ring; 21. a first return spring; 22. a first fixed block; 23. a diagonal bar; 24. a second fixed block; 25. a cross arm; 26. a third fixed block; 27. a support shaft; 28. a second guide bearing; 29. a V-shaped track; 30. a V-shaped wheel; 31. a fixed mount; 32. a roller; 33. connecting columns; 34. adjusting a rod; 35. a first locking bolt; 36. a material receiving box; 37. a support block; 38. a square rod; 39. an arc-shaped block; 40. a second return spring; 41. a reinforcing bar; 42. a stop lever; 43. an adjusting lever; 44. and a second locking bolt.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 10, the new energy motor housing coating dip-coating device of the present invention includes:

the fire-resistant paint container comprises a containing box 1, wherein the containing box 1 is hollow, the top of the containing box 1 is communicated with an opening, and the containing box 1 is used for containing fire-resistant paint;

the supporting mechanism is used for placing the foam model;

the guide mechanism comprises a connecting plate 2, the connecting plate 2 is fixedly arranged on the containing box 1, a moving hole 3 and a guide hole are formed in the connecting plate 2, the moving hole 3 is vertical, and the guide hole comprises a vertical section 4 and an arc-shaped section 5 communicated with the top of the vertical section 4;

and the driving mechanism comprises an air cylinder 6 and is used for driving the supporting mechanism to act.

In this embodiment, hold 1 inside refractory coating of placing of case, through actuating mechanism, guiding mechanism and supporting mechanism's mutually supporting, the operator arranges the foam model in on the supporting mechanism, but self-holding, the upset, dip into subsequently and hold in 1 interior refractory coating of case, after the dip-coating finishes, make the earlier rise of foam model through actuating mechanism, it is rotatory to the horizontality afterwards, it is rotatory afterwards to continue, release the foam model, the operator takes off and repairs flaw department after the release, for manual mode among the prior art, this device whole process only needs the user to place and take off the foam model, reduce user's intensity of labour greatly, and the machining efficiency is improved, and the influence to user's health has been reduced.

Further, as shown in fig. 1 and 3, the driving mechanism further includes a fixing plate 7 fixedly connected to the containing box 1, a connecting block 8 is mounted on the fixing plate 7, and the mounting end of the air cylinder 6 is rotatably connected to the connecting block 8 through a connecting shaft 9.

In the embodiment, the mounting end of the air cylinder 6 is rotatably mounted on the connecting block 8 through the connecting shaft 9, and when the piston rod of the air cylinder 6 extends or shortens, the angle of the air cylinder 6 is adaptively changed.

Further, as shown in fig. 1 to 8, the supporting mechanism includes a guide shaft 10 rotatably mounted at the telescopic end of the cylinder 6, a first guide bearing 11 is disposed on the guide shaft 10, the first guide bearing 11 contacts with the inner wall of the guide hole, and a connecting frame 12 shaped like a letter "7" is rotatably mounted at the other end of the guide shaft 10;

the other end of the connecting frame 12 is fixedly connected with a transition frame 13, the other end of the transition frame 13 is fixedly connected with a supporting column 14, and the upper half area of the supporting column 14 is fixedly connected with a limiting component for limiting the foam model;

the supporting column 14 is hollow, an opening is communicated with one side, close to the connecting plate 2, of the supporting column 14, a sliding column 15 is slidably mounted in the supporting column 14, a push plate 16 is fixedly connected to the sliding column 15, the push plate 16 extends out of the supporting column 14 along the opening, a supporting plate 17 is fixedly connected to the supporting column 14, a telescopic rod 18 is fixedly connected between the supporting plate 17 and the push plate 16, a first supporting ring 19 is fixedly connected to the fixed end of the telescopic rod 18, a second supporting ring 20 is fixedly connected to the telescopic end of the telescopic rod 18, a first return spring 21 is sleeved on the telescopic rod 18, and two ends of the first return spring 21 are respectively in contact with the first supporting ring 19 and the second supporting ring 20;

four first fixing blocks 22 are equidistantly mounted at the bottom end of the sliding column 15, an inclined rod 23 is connected to the first fixing blocks 22 in an upper shaft mode, the other end of the inclined rod 23 is connected with a second fixing block 24 in a shaft mode, a cross arm 25 used for supporting a foam model is fixedly mounted on the second fixing block 24, the other end of the cross arm 25 is connected with a third fixing block 26 in a shaft mode, and the third fixing block 26 is fixed to the bottom end of the supporting column 14;

a support shaft 27 is rotatably mounted at a corner of the connecting frame 12, a second guide bearing 28 which is in contact with the inner wall of the moving hole 3 is arranged on the support shaft 27, two groups of V-shaped rails 29 are fixedly connected to the connecting plate 2, and V-shaped wheels 30 which are in sliding fit with the V-shaped rails 29 are mounted on the support shaft 27;

the connecting plate 2 is fixedly provided with a fixing frame 31, the other end of the fixing frame 31 is rotatably provided with a roller 32, and the roller 32 is used for preventing the push plate 16 from rotating.

In this embodiment, as shown in fig. 1, in the state of the foam pattern, since the density of the foam pattern is low, the foam pattern with the tendency of floating upward is supported by the arranged limiting component, so that the foam pattern is immersed in the refractory coating for dip coating;

when the supporting shaft 27 goes up and down, the V-shaped wheels 30 are driven to move along the two V-shaped tracks 29, and the front and back positions of the supporting shaft 27 and the like are limited, so that the stability is higher when the device runs;

after the dip coating is finished, the cylinder 6 is operated to extend the piston rod of the cylinder 6, because the first guide bearing 11 is located on the vertical section 4 of the guide hole and the second guide bearing 28 is located in the vertical moving hole 3, the piston rod of the cylinder 6 extends to make the connecting frame 12, the transition frame 13 and the supporting column 14 move upwards at the same time, the foam model is driven to move upwards under the support of the cross arm 25, when the second guide bearing 28 moves to the top end of the moving hole 3, the first guide bearing 11 moves to the junction of the vertical section 4 and the circular arc section 5, as shown in the state of fig. 9, then the cylinder 6 which continues to extend makes the first guide bearing 11 move along the circular arc section 5, so that the connecting frame 12, the transition frame 13, the supporting column 14 and the foam model rotate anticlockwise by taking the supporting shaft 27 as an axis, when the push plate 16 contacts with the roller 32, as shown in the state of fig. 10, the supporting column 14 and the foam model are horizontal, the cylinder 6 is continuously extended, the connecting frame 12, the transition frame 13, the supporting column 14, the foam model and the like continuously rotate by taking the supporting shaft 27 as an axis, but the stationary roller 32 enables the push plate 16 and the sliding column 15 to move towards the right side relative to the supporting column 14 and the sliding column 15 to move towards the right side, under the matching of the first fixed block 22, the second fixed block 24, the third fixed block 26 and the inclined rod 23, the cross arms 25 are close to one side of the supporting column 14, then the cylinder 6 is stopped, the foam model is taken down, and the defect point of the foam model is repaired;

then, the foam model to be treated is placed on the supporting column 14 again, then the length of the air cylinder 6 is shortened, the first guide bearing 11 moves along the arc-shaped section 5, under the action of the elastic force of the first return spring 21, the push plate 16, the sliding column 15 and the like move relative to the supporting column 14, each cross arm 25 is restored to be in a state perpendicular to the supporting shaft 27, the length of the air cylinder 6 is continuously shortened, the first guide bearing 11 moves along the arc-shaped section 5, the foam model rotates to be in a vertical state, the length of the air cylinder 6 is continuously shortened, the first guide bearing 11 moves along the vertical section 4 while the supporting shaft 27 moves along the moving hole 3, the foam model vertically moves downwards and is immersed into the refractory paint in the containing box 1, and the foam model is completely immersed into the refractory paint for dip coating under the blocking of the limiting component;

and repeating the process after the dip coating is finished.

Further, as shown in fig. 5, the supporting mechanism further includes a connecting column 33 fixed on the left and right sides of the supporting column 14, an adjusting rod 34 is slidably mounted on the connecting column 33, a first locking bolt 35 for fixing the position of the adjusting rod 34 is connected to the connecting column 33 through a thread, and one end of the adjusting rod 34 away from the supporting column 14 is arc-shaped.

In the embodiment, the relative position of the adjusting rod 34 with respect to the connecting column 33 can be adjusted, and the position of the adjusting rod 34 is fixed by the first locking bolt 35;

the circular arc one end of the adjusting rod 34 limits the foam model, so that the foam model is prevented from being excessively deviated and damaged in the processes of dip coating, overturning and the like, and the position of the adjusting rod 34 is adjusted according to the inner diameter of the foam model.

Further, as shown in fig. 3, the material receiving device further comprises a material receiving mechanism, the material receiving mechanism comprises a material receiving box 36 connected with the containing box 1, the inside of the material receiving box 36 is hollow, the top of the material receiving box is open, supporting legs are mounted at four corners of the bottom of the material receiving box 36, the bottom of the material receiving box 36 is in an inverted cone shape, and the bottom of the material receiving box 36 is communicated with a discharge valve.

In this embodiment, the coating material that is separated from the foam pattern flows into the material receiving box 36 during the rotation of the foam pattern after the dipping process, and the user opens the discharge valve to discharge the coating material for the subsequent use, thereby saving the cost.

Further, as shown in fig. 4 and 8, the driving mechanism further includes a supporting block 37 fixed on the connecting plate 2, a square rod 38 is slidably mounted on the supporting block 37, an arc block 39 contacting with the guide shaft 10 is disposed at the top of the square rod 38, a second return spring 40 is sleeved on the square rod 38, and two ends of the second return spring 40 are respectively in close contact with the arc block 39 and the supporting block 37.

In the present embodiment, when the cylinder 6 is extended as in the state shown in fig. 1, the arc-shaped block 39 is caused to provide upward power to the guide shaft 10 under the elastic force of the second return spring 40, so that the guide shaft 10 is smoother at the beginning of the movement.

Further, as shown in fig. 8, a reinforcing bar 41 is fixedly connected to the connecting frame 12.

In this embodiment, the reinforcing bar 41 is provided to prevent the connecting frame 12 from being broken at the corner.

Further, as shown in fig. 5, the limiting assembly includes at least three blocking rods 42 connected to the supporting column 14, an adjusting rod 43 is slidably mounted on the blocking rods 42, and a second locking bolt 44 for fixing the position of the adjusting rod 43 is threadedly connected to the blocking rods 42.

In this embodiment, the position of the adjusting rod 43 relative to the stopper rod 42 is adjustable and fixed by the second locking bolt 44, and the entire length of the adjusting rod 43 and the stopper rod 42 is greater than the outer diameter of the foam pattern to push the foam pattern to move downward to be immersed in the dope.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.