Local shielding device for workpiece paint spraying protection

Abstract

The utility model relates to a local shielding device for workpiece paint spraying protection, and relates to the technical field of workpiece paint spraying protection. The pressing roller and the containing roller are arranged at intervals, the pressing roller is connected with the containing roller through a mounting frame, the pressing roller is rotationally connected with the mounting frame, and the pressing roller is used for abutting against the assembling face of the round hole in the workpiece and can roll on the assembling face so that the adhesive tape can be attached to the assembling face; and the handle assembly is connected with the mounting frame and used for manually pushing the pressing roller to move. Due to the fact that the pressing roller is connected with the containing roller through the installation frame and rotationally connected with the installation frame, a worker can evenly attach the adhesive tape to the assembly face by pushing the pressing roller to move, the adhesive tape does not need to be fixed by hands, and the problems that in the prior art, manual adhesive tape pasting is prone to being not firm, and the adhesive tape can not be fixed easily are solved. And in the paint spraying process, paint is attached to the assembling face and needs to be trimmed after being dried, and time and labor are wasted.

Description

Technical Field

[0001] The utility model relates to the technical field of workpiece spray protection, in particular to a local shielding device for workpiece spray paint protection. Background Art

[0002] In order to prevent oxidation corrosion and meet product appearance requirements, the finished metal parts generally need to be painted. However, metal parts may have a large number of circular grooves and holes of different sizes, which need to be assembled with other parts. In order not to affect the assembly accuracy, paint cannot adhere to the assembly surface of the circular grooves and holes. Therefore, they need to be temporarily protected by means of tape and jig support. If special jigs are used for protection, they generally need to be customized according to the shape of the tool workpiece. The design, development and production process of the jig is long, time-consuming and labor-intensive, and the reuse rate is not high. Therefore, it is generally used to protect the assembly surface by tape.

[0003] In the prior art, there is a local shielding device for metal rudder surface painting, such as patent number CN115445880A, which includes a handle, a shaft column, a rotary cutting tool, a silicone pressure head, a tape reel and a tape holder. The shaft column is installed at the lower end of the handle, and the silicone pressure head is embedded in the end of the shaft column. The rotary cutting tool includes a spring, a tool holder, a circular rotary blade, a shell and a rotating button. The spring is arranged on the upper part of the shaft column, and the circular rotary blade is retracted in the shell. The shell is connected to the spring in the shaft column through the tool holder. The rotating button is installed at the bottom of the rotary cutting tool. The rotating button is used to control the rotation and contraction of the circular rotary blade and the cutting of the tape; the device assists the tape to be pasted on the circular grooves and circular holes of the metal rudder surface. The highly elastic silicone pressure head can be applied to all sizes of circular grooves and circular holes on the metal rudder surface, and the tape can be accurately pasted to the circular grooves and circular holes that do not need to be painted. The use of this device is simple to operate, efficient and time-saving.

[0004] However, the local shielding device used for painting metal rudder surfaces is generally only suitable for the case where the diameter of the circular hole is smaller than the width of the tape. When the diameter of the circular hole is larger than the width of the tape, multiple laminations are required to protect the circular hole assembly surface, which reduces production efficiency and affects the production schedule. The efficiency of manual tape sticking is low, and the worker needs to hold the tape with one hand and stick it with the other hand. During the sticking process, the tape is not easy to align along the edge, and it is difficult to apply force during the process. The pressing pressure is uneven, which makes it easy to stick loosely, which leads to the paint adhering to the assembly surface during the painting process, and the paint needs to be dried and trimmed, which is time-consuming and labor-intensive. Utility Model Content

[0005] The present application provides a local shielding device for workpiece paint protection, which can solve the problem that the local shielding device for metal rudder surface painting in the prior art is generally only suitable for the situation that the diameter of the circular hole is smaller than the width of the tape. When the diameter of the circular hole is larger than the width of the tape, multiple laminations are required to protect the circular hole assembly surface, which reduces production efficiency and affects the production schedule. The efficiency of manual tape sticking is low, and the worker needs to hold the tape with one hand and stick it with the other hand. During the sticking process, the tape is not easy to align along the edge, and it is difficult to apply force during the process. The pressing pressure is uneven, which makes it easy to stick loosely, which leads to the problem that the paint adheres to the assembly surface during the painting process and needs to be dried and trimmed, which is time-consuming and labor-intensive.

[0006] In a first aspect, an embodiment of the present application provides a local shielding device for workpiece paint protection, comprising:

[0007] A placement roller is used to place the tape;

[0008] A pressing roller is arranged at a distance from the placing roller and connected to the placing roller through a mounting frame. The pressing roller is rotatably connected to the mounting frame. The pressing roller is used to abut against the assembly surface of the circular hole on the workpiece and can roll on the assembly surface to attach the adhesive tape to the assembly surface.

[0009] A handle assembly is connected to the mounting frame and is used to manually push the pressing roller to move.

[0010] In combination with the first aspect, in one embodiment, the mounting frame includes:

[0011] A short shaft rod, which passes through the axis of the placement roller, and the placement roller can rotate around the short shaft rod;

[0012] A long shaft rod, which passes through the axis of the pressing roller, and the pressing roller can rotate around the short shaft rod;

[0013] A connecting rod connects the short shaft rod and the long shaft rod and is perpendicular to the short shaft rod and the long shaft rod.

[0014] In combination with the first aspect, in one embodiment, a first annular baffle is provided on the placing roller, and a second annular baffle is provided on the pressing roller, the first annular baffle and the second annular baffle are respectively located at one end of the placing roller and the pressing roller close to the connecting rod, and the first annular baffle and the second annular baffle are located in the same plane.

[0015] In combination with the first aspect, in one embodiment, a third annular baffle is further provided on the pressing roller, and the third annular baffle is spaced apart from the second annular baffle. The third annular baffle is located at an end of the pressing roller away from the connecting rod, and the distance between the third annular baffle and the second annular baffle is greater than the width of the assembly surface. The third annular baffle is used to cooperate with the second annular baffle to limit the position of the pressing roller on the assembly surface.

[0016] In combination with the first aspect, in one embodiment, a fastening sleeve is provided at one end of the placement roller away from the first annular baffle, and the fastening sleeve is threadedly connected to the placement roller to limit the position of the tape.

[0017] In combination with the first aspect, in one embodiment, the short shaft rod and the long shaft rod are both provided with a shoulder and a groove, a bearing is provided at the shoulder, the groove is located on the side of the bearing away from the shoulder, a retaining ring is provided at the groove, the shoulder and the retaining ring are used to cooperate to limit the position of the bearing, and the placing roller and the pressing roller are rotatably arranged on the short shaft rod and the long shaft rod through the bearing.

[0018] In combination with the first aspect, in one embodiment, the inner holes of the placing roller and the pressing roller for allowing the short shaft rod and the long shaft rod to pass through are both provided with steps, and the steps are used to abut against the outer ring of the bearing.

[0019] In combination with the first aspect, in one embodiment, the short shaft rod and the long shaft rod are both provided with through holes, the through holes are used for cylindrical pins to pass through, and the cylindrical pins are used to connect the short shaft rod and the connecting rod, and the long shaft rod and the connecting rod, respectively.

[0020] In combination with the first aspect, in one embodiment, the handle assembly includes handles disposed at both ends of the long shaft.

[0021] In combination with the first aspect, in one embodiment, a rubber layer is provided on the rolling surface of the pressing roller.

[0022] The beneficial effects brought by the technical solution provided in the embodiments of the present application include:

[0023] When the local shielding device for paint protection of workpieces is used, the tape is placed on the placing roller, the pressing roller is spaced apart from the placing roller and connected to the placing roller through a mounting frame, the pressing roller is rotatably connected to the mounting frame, the pressing roller is used to abut against the assembly surface of the circular hole on the workpiece, and can roll on the assembly surface to fit the tape on the assembly surface, and the handle assembly is connected to the mounting frame for manually pushing the pressing roller to move. Since the pressing roller is connected to the placing roller through the mounting frame, and the pressing roller is rotatably connected to the mounting frame, the worker can stick the tape on the assembly surface by pushing the pressing roller to move, and the tape can be evenly stuck on the assembly surface without fixing the tape by hand. This solves the problem that the local shielding device for metal rudder surface spray painting in the prior art is generally only suitable for the situation that the diameter of the circular hole is smaller than the width of the tape. When the diameter of the circular hole is larger than the width of the tape, multiple stickings are required to protect the circular hole assembly surface, which reduces production efficiency and affects the production schedule. Manual tape sticking is less efficient, and the worker needs to hold the tape with one hand and stick it with the other hand. During the sticking process, the tape is not easy to align along the edge, and it is difficult to apply force during the process. The pressing pressure is uneven, which makes it easy to stick loosely, which leads to the problem that the paint adheres to the assembly surface during the spraying process and needs to be dried and trimmed, which is time-consuming and labor-intensive. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 The utility model is a structural schematic diagram of a local shielding device for protecting a workpiece from paint spraying.

[0026] Figure 2 The utility model is a schematic diagram of a partial shielding device embodiment for protecting a workpiece from paint spraying on a workpiece.

[0027] In the figure: 1. pressing roller; 11. second annular baffle; 12. third annular baffle; 2. workpiece; 21. assembly surface; 3. placing roller; 31. first annular baffle; 4. tape; 5. handle assembly; 51. handle; 6. mounting frame; 61. short shaft rod; 62. long shaft rod; 63. connecting rod; 64. cylindrical pin; 7. retaining ring; 8. bearing; 9. fastening sleeve. DETAILED DESCRIPTION

[0028] 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 are within the scope of protection of this application.

[0029] The embodiment of the present application provides a local shielding device for workpiece paint protection, which can solve the problem in the prior art that the local shielding device for metal rudder surface painting is generally only suitable for the situation that the diameter of the circular hole is smaller than the width of the tape. When the diameter of the circular hole is larger than the width of the tape, multiple bondings are required to protect the circular hole assembly surface, which reduces production efficiency and affects the production schedule. The efficiency of manual tape sticking is low, and the worker needs to hold the tape with one hand and stick it with the other hand. During the sticking process, the tape is not easy to align along the edge, and it is difficult to apply force during the process. The pressing pressure is uneven, which makes it easy to stick loosely, which leads to the problem that the paint adheres to the assembly surface during the painting process and needs to be dried and trimmed, which is time-consuming and labor-intensive.

[0030] like Figure 1 and Figure 2 As shown, the present application provides a local shielding device for workpiece paint protection, which includes:

[0031] A roller 3 is placed for placing an adhesive tape 4;

[0032] A pressing roller 1 is spaced apart from the placing roller 3 and connected to the placing roller 3 via a mounting frame 6. The pressing roller 1 is rotatably connected to the mounting frame 6. The pressing roller 1 is used to abut against the assembly surface 21 of the circular hole on the workpiece 2 and can roll on the assembly surface 21 to attach the adhesive tape 4 to the assembly surface 21.

[0033] The handle assembly 5 is connected to the mounting frame 6 and is used for manually pushing the pressing roller 1 to move.

[0034] When using the local shielding device for paint protection of workpieces, the tape 4 is placed on the placing roller 3, the pressing roller 1 is spaced apart from the placing roller 3, and is connected to the placing roller 3 through the mounting frame 6, the pressing roller 1 is rotatably connected to the mounting frame 6, the pressing roller 1 is used to abut against the assembly surface 21 of the circular hole on the workpiece 2, and can roll on the assembly surface 21 to fit the tape 4 on the assembly surface 21, and the handle assembly 5 is connected to the mounting frame 6 for manually pushing the pressing roller 1 to move. Since the pressing roller 1 and the placing roller 3 are connected by the mounting frame 6, and the pressing roller 1 and the mounting frame 6 are rotatably connected, the worker can stick the tape 4 on the assembly surface 21 by pushing the pressing roller 1 to move, and the tape 4 can be evenly stuck on the assembly surface 21 without fixing the tape 4 by hand, which solves the problem that the local shielding device for metal rudder surface painting in the prior art is generally only suitable for the situation that the diameter of the circular hole is smaller than the width of the tape. When the diameter of the circular hole is larger than the width of the tape, multiple stickings are required to protect the circular hole assembly surface, which reduces production efficiency and affects the production schedule. The efficiency of manual tape sticking is low, and the worker needs to hold the tape with one hand and stick it with the other hand. During the sticking process, the tape is not easy to align along the edge, and it is difficult to apply force during the process. The pressing pressure is uneven, which is easy to stick loosely, which leads to the problem that the paint adheres to the assembly surface during the painting process and needs to be dried and trimmed, which is time-consuming and labor-intensive.

[0035] like Figure 1 and Figure 2 As shown, in some optional embodiments, the mounting frame 6 includes:

[0036] A short shaft rod 61 passes through the axis of the placement roller 3, and the placement roller 3 can rotate around the short shaft rod 61;

[0037] A long shaft 62 passes through the axis of the pressing roller 1, and the pressing roller 1 can rotate around the short shaft 61;

[0038] The connecting rod 63 connects the short shaft rod 61 and the long shaft rod 62 and is perpendicular to the short shaft rod 61 and the long shaft rod 62 .

[0039] In this embodiment, the specific structure of the mounting frame 6 is specifically described. The mounting frame 6 includes a short shaft rod 61, a long shaft rod 62 and a connecting rod 63, wherein the short shaft rod 61 passes through the axis of the placing roller 3, and the placing roller 3 can rotate around the short shaft rod 61, and the long shaft rod 62 passes through the axis of the pressing roller 1, and the pressing roller 1 can rotate around the short shaft rod 61. The connecting rod 63 connects the short shaft rod 61 and the long shaft rod 62, and is perpendicular to the short shaft rod 61 and the long shaft rod 62. The structure is simple and easy to manufacture.

[0040] like Figure 1 and Figure 2As shown, in some optional embodiments, a first annular baffle 31 is provided on the placing roller 3, and a second annular baffle 11 is provided on the pressing roller 1. The first annular baffle 31 and the second annular baffle 11 are respectively located at one end of the placing roller 3 and the pressing roller 1 close to the connecting rod 63, and the first annular baffle 31 and the second annular baffle 11 are located in the same plane.

[0041] In this embodiment, a first annular baffle 31 is provided on the placing roller 3, and a second annular baffle 11 is provided on the pressing roller 1. The first annular baffle 31 and the second annular baffle 11 are respectively located at one end of the placing roller 3 and the pressing roller 1 close to the connecting rod 63, and the first annular baffle 31 and the second annular baffle 11 are located in the same plane. The first annular baffle 31 is used to abut against the workpiece 2 to facilitate positioning of the placing roller 3 on the assembly surface 21. When the first annular baffle 31 and the second annular baffle 11 are located in the same plane, the pulling-out process of the tape 4 is smoother.

[0042] like Figure 1 and Figure 2 As shown, in some optional embodiments, a third annular baffle 12 is further provided on the pressing roller 1. The third annular baffle 12 is spaced apart from the second annular baffle 11. The third annular baffle 12 is located at the end of the pressing roller 1 away from the connecting rod 63. The distance between the third annular baffle 12 and the second annular baffle 11 is greater than the width of the assembly surface 21. The third annular baffle 12 is used to cooperate with the second annular baffle 11 to limit the position of the pressing roller 1 on the assembly surface 21.

[0043] In this embodiment, a third annular baffle 12 is further provided on the pressing roller 1. The third annular baffle 12 is spaced apart from the second annular baffle 11. The third annular baffle 12 is located at the end of the pressing roller 1 away from the connecting rod 63. The distance between the third annular baffle 12 and the second annular baffle 11 is greater than the width of the assembly surface 21. The third annular baffle 12 is used to cooperate with the second annular baffle 11 to limit the position of the pressing roller 1 on the assembly surface 21 to prevent the pressing roller 1 from detaching from the assembly surface 21 when rolling.

[0044] like Figure 1 As shown, in some optional embodiments, a fastening sleeve 9 is provided at one end of the placement roller 3 away from the first annular baffle 31 , and the fastening sleeve 9 is threadedly connected to the placement roller 3 for limiting the position of the adhesive tape 4 .

[0045] In this embodiment, a fastening sleeve 9 is provided at the end of the placing roller 3 away from the first annular baffle 31. The fastening sleeve 9 is threadedly connected to the placing roller 3 and is used to limit the position of the tape 4. This is equivalent to the fastening sleeve 9 and the first annular baffle 31 cooperating to limit the displacement of the tape 4 in the axial direction, thereby preventing the tape 4 from detaching from the placing roller 3.

[0046] like Figure 1As shown, in some optional embodiments, the short shaft rod 61 and the long shaft rod 62 are both provided with a shoulder and a groove, a bearing 8 is provided at the shoulder, the groove is located on the side of the bearing 8 away from the shoulder, a retaining ring 7 is provided at the groove, and the shoulder and the retaining ring 7 are used to cooperate to limit the position of the bearing 8, and the placing roller 3 and the pressing roller 1 are rotatably arranged on the short shaft rod 61 and the long shaft rod 62 through the bearing 8.

[0047] In this embodiment, a shoulder and a groove are provided on the short shaft rod 61 and the long shaft rod 62, a bearing 8 is provided at the shoulder, the groove is located on the side of the bearing 8 away from the shoulder, a retaining ring 7 is provided at the groove, and the shoulder and the retaining ring 7 are used to cooperate to limit the position of the bearing 8. The placing roller 3 and the pressing roller 1 are rotatably arranged on the short shaft rod 61 and the long shaft rod 62 through the bearing 8, and the rotation method is specifically described. The structure is simple and easy to install.

[0048] In this example, bearings 8 are provided at both ends of the placing roller 3 and the pressing roller 1 .

[0049] In some optional embodiments, the inner holes of the placing roller 3 and the pressing roller 1 for the short shaft rod 61 and the long shaft rod 62 to pass through are both provided with steps, and the steps are used to abut against the outer ring of the bearing 8.

[0050] In this embodiment, steps are provided in the inner holes of the placing roller 3 and the pressing roller 1 for the short shaft rod 61 and the long shaft rod 62 to pass through. The steps are used to abut against the outer ring of the bearing 8, so as to limit the positions of the placing roller 3 and the pressing roller 1 on the short shaft rod 61 and the long shaft rod 62 respectively, thereby improving the structural stability of the local shielding device for workpiece paint protection.

[0051] like Figure 1 As shown, in some optional embodiments, both the short shaft rod 61 and the long shaft rod 62 are provided with through holes for passing cylindrical pins 64 , which are used to connect the short shaft rod 61 and the connecting rod 63 , and the long shaft rod 62 and the connecting rod 63 , respectively.

[0052] In this embodiment, through holes are provided on the short shaft rod 61 and the long shaft rod 62, and the through holes are used to allow the cylindrical pin 64 to pass through. The cylindrical pin 64 is used to connect the short shaft rod 61 and the connecting rod 63, and the long shaft rod 62 and the connecting rod 63 respectively. The connection through the cylindrical pin 64 has a simple structure and is easy to manufacture.

[0053] like Figure 1 and Figure 2 As shown, in some optional embodiments, the handle assembly 5 includes handles 51 disposed at both ends of the long shaft rod 62 .

[0054] In this embodiment, the structure of the handle assembly 5 is specifically described. The handle assembly 5 includes handles 51 arranged at both ends of the long shaft rod 62, which is convenient for workers to actually operate and use.

[0055] In this example, the handle 51 is threadedly connected to the long shaft 62 .

[0056] In some optional embodiments, a rubber layer is provided on the rolling surface of the pressing roller 1 .

[0057] In this embodiment, a rubber layer is provided on the rolling surface of the pressing roller 1 to increase the contact surface and the degree of fit during the pressing process, thereby ensuring that the tape is firmly adhered.

[0058] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0059] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0060] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A local shielding device for workpiece paint protection, characterized in that: include: A placement roller (3) for placing the adhesive tape (4); A pressing roller (1) is arranged at a distance from the placing roller (3) and is connected to the placing roller (3) via a mounting frame (6). The pressing roller (1) is rotatably connected to the mounting frame (6). The pressing roller (1) is used to abut against an assembly surface (21) of a circular hole on a workpiece (2) and can roll on the assembly surface (21) to attach the adhesive tape (4) to the assembly surface (21); A handle assembly (5) is connected to the mounting frame (6) and is used to manually push the pressing roller (1) to move.

2. A local shielding device for workpiece paint protection as claimed in claim 1, characterized in that: The mounting frame (6) comprises: A short shaft rod (61) passes through the axis of the placement roller (3), and the placement roller (3) can rotate around the short shaft rod (61); A long shaft (62) passes through the axis of the pressing roller (1), and the pressing roller (1) can rotate around the short shaft (61); A connecting rod (63) connects the short shaft rod (61) and the long shaft rod (62) and is perpendicular to the short shaft rod (61) and the long shaft rod (62).

3. A local shielding device for workpiece paint protection as claimed in claim 2, characterized in that: The placing roller (3) is provided with a first annular baffle (31), and the pressing roller (1) is provided with a second annular baffle (11); the first annular baffle (31) and the second annular baffle (11) are respectively located at one end of the placing roller (3) and the pressing roller (1) close to the connecting rod (63), and the first annular baffle (31) and the second annular baffle (11) are located in the same plane.

4. A local shielding device for workpiece paint protection as claimed in claim 3, characterized in that: The pressing roller (1) is also provided with a third annular baffle (12), which is spaced apart from the second annular baffle (11). The third annular baffle (12) is located at one end of the pressing roller (1) away from the connecting rod (63), and the distance between the third annular baffle (12) and the second annular baffle (11) is greater than the width of the assembly surface (21). The third annular baffle (12) is used to cooperate with the second annular baffle (11) to limit the position of the pressing roller (1) on the assembly surface (21).

5. A local shielding device for workpiece paint protection as claimed in claim 3, characterized in that: A fastening sleeve (9) is provided at one end of the placement roller (3) away from the first annular baffle (31); the fastening sleeve (9) is threadedly connected to the placement roller (3) and is used to limit the position of the adhesive tape (4).

6. A local shielding device for workpiece paint protection as claimed in claim 2, characterized in that: The short shaft rod (61) and the long shaft rod (62) are both provided with a shaft shoulder and a slot, the shaft shoulder is provided with a bearing (8), the slot is located on the side of the bearing (8) away from the shaft shoulder, the slot is provided with a retaining ring (7), the shaft shoulder and the retaining ring (7) are used to cooperate to limit the position of the bearing (8), and the placing roller (3) and the pressing roller (1) are rotatably arranged on the short shaft rod (61) and the long shaft rod (62) through the bearing (8).

7. A local shielding device for workpiece paint protection as claimed in claim 6, characterized in that: The placing roller (3) and the pressing roller (1) are used to provide steps in the inner holes through which the short shaft rod (61) and the long shaft rod (62) pass, and the steps are used to abut against the outer ring of the bearing (8).

8. A local shielding device for workpiece paint protection as claimed in claim 2, characterized in that: The short shaft rod (61) and the long shaft rod (62) are both provided with through holes, the through holes are used for a cylindrical pin (64) to pass through, and the cylindrical pin (64) is used to connect the short shaft rod (61) and the connecting rod (63), and the long shaft rod (62) and the connecting rod (63), respectively.

9. A local shielding device for workpiece paint protection as claimed in claim 2, characterized in that: The handle assembly (5) comprises handles (51) arranged at both ends of the long shaft (62).

10. A local shielding device for workpiece paint protection as claimed in claim 1, characterized in that: A rubber layer is provided on the rolling surface of the pressing roller (1).

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