Cutting device for silica gel protective film production

Abstract

The utility model belongs to the technical field of silica gel protective film production, and particularly relates to a cutting device for silica gel protective film production, which comprises a workbench, a wind-up roll is rotatably mounted on the workbench, a motor is fixedly mounted on one side of the workbench and positioned on one side of the wind-up roll, and an output shaft of the motor penetrates through the workbench and is coaxially connected with the wind-up roll. A sliding rod is slidably installed on the workbench and located on one side of the winding roller, an air cylinder is fixedly installed on the workbench and located above the sliding rod, the telescopic end of the air cylinder penetrates through the workbench and is fixedly connected with the top of the sliding rod, and a raw material roller is rotatably installed on the workbench and located on one side of the sliding rod; the second limiting groove is formed in the sliding rod, and a T-shaped block is movably installed in the second limiting groove; when the whole device is used, a worker can change the position of the cutter conveniently, tools are not needed, operation is easy, meanwhile, the cutter can be disassembled and assembled conveniently, operation is easy, and tools are not needed.

Description

Technical Field

[0001] The utility model belongs to the technical field of silicone protective film production, in particular to a cutting device for silicone protective film production. Background Art

[0002] Silicone protective film is a PET protective film that is formed by attaching a layer of organic silicone coating to the original PET film. It has many characteristics, including high-precision extrusion coating, high cleanliness, no white spots, white fog, sand holes, no drawing, no scratches, etc.

[0003] Most cutting devices for producing silicone protective films have some disadvantages when in use, such as: the cutting blade of the cutting device needs to be replaced when damaged, the cutting blade is worn out, resulting in inaccurate or incomplete cutting, and the cutting device cannot quickly replace the blade. At the same time, the position of the cutting blade on the cutting device cannot be adjusted, resulting in the inability to cut silicone protective films of different widths. In view of this, we propose a cutting device for producing silicone protective films. Utility Model Content

[0004] The purpose of the utility model is to provide a cutting device for producing a silicone protective film to solve the problems raised in the above-mentioned background technology.

[0005] In view of this, the utility model provides a cutting device for producing a silicone protective film, comprising:

[0006] A workbench, a winding roller is rotatably installed on the workbench, a motor is fixedly installed on one side of the workbench, the motor is located on one side of the winding roller, and the output shaft of the motor passes through the workbench and is coaxially connected to the winding roller, a sliding rod is slidably installed on the workbench and located on one side of the winding roller, a cylinder is fixedly installed on the workbench and located above the sliding rod, the telescopic end of the cylinder passes through the workbench and is fixedly connected to the top of the sliding rod, and a raw material roller is rotatably installed on the workbench and located on one side of the sliding rod;

[0007] A limiting groove three, wherein the limiting groove three is provided in the sliding rod, and a T-shaped block is movably installed in the limiting groove three;

[0008] A fixing assembly, the fixing assembly is located in the T-shaped block and is used to fix the position of the T-shaped block;

[0009] A limiting groove 1, wherein the limiting groove 1 is provided in the T-shaped block, and a limiting column is movably installed in the limiting groove 1, and the lower end of the limiting column passes through the limiting groove 1 and extends to the outside and is fixedly installed with a tool;

[0010] A limiting component is located in the tool and is used to limit the position of the limiting column.

[0011] In this technical solution, the motor is first started, and the motor is powered on to drive the winding roller to rotate, and the winding roller can pull the silicone protective film to move, and then the cylinder is started, and the cylinder is powered on to drive the sliding rod to slide up and down, thereby achieving the effect of cutting the silicone protective film;

[0012] When the position of the tool needs to be adjusted, the T-shaped block can be lifted up through the fixed component, and the T-shaped block can be pulled to the appropriate position by observing the scale line, and the T-shaped block can be pulled down and fixed through the fixed component, which is convenient for personnel to change the position of the tool without the use of tools and is simple to operate;

[0013] When the tool needs to be disassembled, the limit column can be rotated 90° through the set limit assembly, and then the tool is pulled down, and the tool drives the limit column to disengage from the limit groove, and the tool can be disassembled;

[0014] When the tool needs to be installed, first place the new tool under the T-block, then the limit column will be inserted into the limit slot, and then the tool will be rotated 90°, and the tool will drive the limit column to rotate 90°. The position of the limit column can be fixed by the set limit assembly, which facilitates the installation of the tool without the need for tools.

[0015] In the above technical solution, further, the fixing assembly includes:

[0016] Two limit grooves 2, the two limit grooves 2 are both opened in the T-shaped block and located above the limit groove 1, the two limit grooves 2 are both slidably installed with limit strips, the sides of the two limit strips away from each other respectively penetrate the two limit grooves 2 and extend into the limit groove 3, the limit strips are plugged into the limit groove 3, the front sides of the two limit strips penetrate the limit groove 2 and extend to the outside, and the sides of the two limit strips close to each other are respectively fixedly installed with a plurality of springs fixed to the inner wall of the limit groove 2.

[0017] In the present technical solution, when the position of the tool needs to be adjusted, first pinch the two limit bars and bring them closer to each other, and at the same time, several springs are squeezed and contracted. When the two limit bars enter the two limit grooves two respectively, push the T-shaped block upward, pull the T-shaped block to the appropriate position by observing the scale line, pull the T-shaped block downward, and then release the two limit bars. Under the action of the rebound force of several springs, the two limit bars slide and move away from each other, and then the two limit bars are inserted into the limit groove three, which can fix the position of the T-shaped block, making it convenient for personnel to change the position of the tool without the use of tools, and the operation is simple.

[0018] In the above technical solution, further, the limit assembly includes:

[0019] Two sliding blocks, both of which are slidably installed in a limiting groove, and the sliding block is plugged into the limiting column. A threaded rod is rotatably installed in the limiting groove, one end of the threaded rod passes through the two sliding blocks and the limiting groove and extends to the outside. The threaded rod is provided with two sections of threads with opposite rotation directions, and the threaded rod is threadedly connected to the two sliding blocks.

[0020] In the technical solution, when the tool needs to be disassembled, the operating disk is first rotated forward to drive the threaded rod to rotate forward. Under the action of the thread, the threaded rod drives the two sliding blocks to slide and move away from each other. When the two sliding blocks are disengaged from the limit column, the limit column can be rotated 90°, and then the tool is pulled downward. The tool drives the limit column to disengage from the limit groove 1, and the tool can be disassembled.

[0021] When the tool needs to be installed, first place the new tool under the T-block, then the limit column will be inserted into the limit groove, then the tool is rotated 90°, the tool drives the limit column to rotate 90°, and then the operating disk is rotated in the opposite direction, the operating disk drives the threaded rod to rotate in the opposite direction, under the action of the thread, the threaded rod drives the two sliding blocks to slide and approach each other, and then the two sliding blocks are inserted into the limit column, the position of the limit column can be fixed, so as to facilitate the installation of the tool without the use of tools.

[0022] In the above technical solution, further, an operating panel is fixedly mounted on one end of the threaded rod.

[0023] In the technical solution, an operating panel is provided to facilitate personnel to rotate the threaded rod.

[0024] In the above technical solution, further, the output shaft of the motor is rotatably connected to the workbench, and the telescopic end of the cylinder is slidably connected to the workbench.

[0025] In this technical solution, it is ensured that the output shaft of the motor can rotate in the workbench and that the telescopic end of the cylinder can slide in the workbench.

[0026] In the above technical solution, further, a scale line is provided on the workbench and located on one side of the sliding rod.

[0027] In this technical solution, personnel can conveniently observe the cutting width by observing the scale lines.

[0028] The beneficial effects of the utility model are:

[0029] 1. The cutting device for silicone protective film production can lift the T-block upwards through the fixed component when the position of the tool needs to be adjusted. By observing the scale line, the T-block can be pulled to the appropriate position. The T-block can be pulled downward and fixed through the fixed component, which is convenient for personnel to change the position of the tool without the use of tools and is easy to operate.

[0030] 2. When the cutting tool of the cutting device for silicone protective film production needs to be disassembled, the limiting column can be rotated 90 degrees through the provided limiting assembly, and then the cutting tool is pulled downward, and the cutting tool drives the limiting column to disengage from the limiting groove, and the cutting tool can be disassembled;

[0031] When the tool needs to be installed, first place the new tool under the T-block, then the limit column will be inserted into the limit slot, and then the tool will be rotated 90°, and the tool will drive the limit column to rotate 90°. The position of the limit column can be fixed by the set limit assembly, which facilitates the installation of the tool without the need for tools. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0033] Figure 2 It is a schematic diagram of the cross-sectional structure of the workbench of the utility model;

[0034] Figure 3 It is a schematic diagram of the T-shaped block area structure of the utility model;

[0035] Figure 4 It is a schematic diagram of the cross-sectional structure of the sliding rod of the utility model;

[0036] Figure 5 It is a schematic diagram of the cross-sectional structure of the T-shaped block of the utility model;

[0037] Figure 6 It is a schematic diagram of the limit column area structure of the utility model.

[0038] The symbols in the figure are:

[0039] 1. Workbench; 2. Winding roller; 3. Motor; 4. Sliding rod; 5. Cylinder; 6. Raw material roller; 7. Limiting groove three; 8. T-shaped block; 9. Limiting groove one; 10. Limiting column; 11. Tool; 12. Limiting groove two; 13. Limiting strip; 14. Spring; 15. Sliding block; 16. Threaded rod; 17. Operating panel; 18. Scale line. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0041] In the description of the present application, it should be noted that the terms used here are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but in appropriate cases, the techniques, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0042] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0043] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0044] It should be noted that, in the present application, the terms "comprise", "include" or any other variant 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, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0045] Embodiment 1:

[0046] See also Figure 1 - Figure 6 As shown, this embodiment provides a cutting device for producing a silicone protective film, comprising:

[0047] A workbench 1, on which a winding roller 2 is rotatably mounted, a motor 3 is fixedly mounted on one side of the workbench 1, the motor 3 is located on one side of the winding roller 2, and the output shaft of the motor 3 passes through the workbench 1 and is coaxially connected to the winding roller 2, a sliding rod 4 is slidably mounted on the workbench 1 and located on one side of the winding roller 2, a cylinder 5 is fixedly mounted on the workbench 1 and located above the sliding rod 4, the telescopic end of the cylinder 5 passes through the workbench 1 and is fixedly connected to the top of the sliding rod 4, and a raw material roller 6 is rotatably mounted on the workbench 1 and located on one side of the sliding rod 4;

[0048] A limiting groove 3 7, the limiting groove 3 7 is provided in the sliding rod 4, and a T-shaped block 8 is movably installed in the limiting groove 3 7;

[0049] A fixing component, which is located in the T-shaped block 8 and is used to fix the position of the T-shaped block 8;

[0050] A limiting groove 9 is provided in the T-shaped block 8, and a limiting column 10 is movably installed in the limiting groove 9, and the lower end of the limiting column 10 passes through the limiting groove 9 and extends to the outside and is fixedly installed with a tool 11;

[0051] The limiting component is located in the tool 11 and is used to limit the position of the limiting column 10.

[0052] Among them, firstly, the motor 3 is started, and the motor 3 is powered on to drive the winding roller 2 to rotate, and the winding roller 2 can pull the silicone protective film to move, and then the cylinder 5 is started, and the cylinder 5 is powered on to drive the sliding rod 4 to slide up and down, so as to achieve the effect of cutting the silicone protective film;

[0053] When the position of the tool 11 needs to be adjusted, the T-shaped block 8 can be lifted upwards through the provided fixing assembly, and the T-shaped block 8 can be pulled to a suitable position by observing the scale line 18, and the T-shaped block 8 can be pulled downwards. The position of the T-shaped block 8 can be fixed through the provided fixing assembly, which is convenient for personnel to change the position of the tool 11, and no tools are required, and the operation is simple;

[0054] When the tool 11 needs to be disassembled, the limiting column 10 can be rotated 90° through the setting limiting assembly, and then the tool 11 is pulled downward, and the tool 11 drives the limiting column 10 to disengage from the limiting groove 9, and the tool 11 can be disassembled;

[0055] When the tool 11 needs to be installed, first place the new tool 11 under the T-block 8, then insert the limit column 10 into the limit groove 9, and then rotate the tool 11 90°. The tool 11 drives the limit column 10 to rotate 90°. The position of the limit column 10 can be fixed by the set limit assembly, which facilitates the installation of the tool 11 without the need for tools.

[0056] In this embodiment, the fixing component includes:

[0057] Two limiting grooves 12, both limiting grooves 12 are arranged in the T-shaped block 8 and are located above the limiting groove 1 9, both limiting grooves 12 are slidably installed with limiting strips 13, the two limiting strips 13 are separated from each other on one side and respectively penetrate the two limiting grooves 12 and extend into the limiting groove 3 7, the limiting strips 13 are plugged and matched with the limiting groove 3 7, the front sides of the two limiting strips 13 are penetrated through the limiting groove 12 and extend to the outside, and the two limiting strips 13 are fixedly installed with a plurality of springs 14 fixed to the inner wall of the limiting groove 2 12 on one side and close to each other;

[0058] Among them, when the position of the tool 11 needs to be adjusted, first pinch the two limit strips 13 and bring them close to each other, and at the same time, the springs 14 are squeezed and contracted. When the two limit strips 13 enter the two limit grooves 12 respectively, push the T-shaped block 8 upward, and pull the T-shaped block 8 to the appropriate position by observing the scale line 18, pull the T-shaped block 8 downward, and then release the two limit strips 13. Under the action of the rebound force of the springs 14, the two limit strips 13 slide and move away from each other, and then the two limit strips 13 are inserted into the limit groove 7, which can fix the position of the T-shaped block 8, making it convenient for personnel to change the position of the tool 11, and no tools are needed, and the operation is simple.

[0059] In this embodiment, the limit assembly includes:

[0060] Two sliding blocks 15, both sliding blocks 15 are slidably installed in the limiting groove 9, and the sliding blocks 15 are plugged and matched with the limiting column 10, a threaded rod 16 is rotatably installed in the limiting groove 9, one end of the threaded rod 16 passes through the two sliding blocks 15 and the limiting groove 9 and extends to the outside, the threaded rod 16 is provided with two sections of threads with opposite rotation directions, and the threaded rod 16 is threadedly connected with the two sliding blocks 15;

[0061] When the tool 11 needs to be disassembled, the operating disk 17 is first rotated forward to drive the threaded rod 16 to rotate forward. Under the action of the thread, the threaded rod 16 drives the two sliding blocks 15 to slide and move away from each other. When the two sliding blocks 15 are disengaged from the limiting column 10, the limiting column 10 can be rotated 90°, and then the tool 11 is pulled downward. The tool 11 drives the limiting column 10 to disengage from the limiting groove 9, and the tool 11 can be disassembled.

[0062] When the tool 11 needs to be installed, first place the new tool 11 under the T-block 8, then the limit column 10 will be inserted into the limit groove 9, then the tool 11 is rotated 90°, the tool 11 drives the limit column 10 to rotate 90°, and then the operating disk 17 is rotated in the opposite direction, the operating disk 17 drives the threaded rod 16 to rotate in the opposite direction, under the action of the thread, the threaded rod 16 drives the two sliding blocks 15 to slide and approach each other, and then the two sliding blocks 15 are inserted into the limit column 10, the position of the limit column 10 can be fixed, so as to facilitate the installation of the tool 11 without the need for tools.

[0063] Embodiment 2:

[0064] This embodiment provides a cutting device for producing silicone protective film, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0065] In this embodiment, an operating panel 17 is fixedly mounted on one end of the threaded rod 16 .

[0066] The operating panel 17 is provided to facilitate personnel to rotate the threaded rod 16 .

[0067] Embodiment 3:

[0068] This embodiment provides a cutting device for producing silicone protective film, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0069] In this embodiment, the output shaft of the motor 3 is rotatably connected to the workbench 1 , and the telescopic end of the cylinder 5 is slidably connected to the workbench 1 .

[0070] Herein, it is ensured that the output shaft of the motor 3 can rotate in the workbench 1 , and that the telescopic end of the cylinder 5 can slide in the workbench 1 .

[0071] Embodiment 4:

[0072] This embodiment provides a cutting device for producing silicone protective film, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0073] In this embodiment, a scale line 18 is provided on the workbench 1 and located on one side of the sliding rod 4 .

[0074] Among them, by observing the scale line 18, it is convenient for personnel to observe the cutting width.

[0075] Working principle: First, start the motor 3. The motor 3 is powered on to drive the winding roller 2 to rotate. The winding roller 2 can pull the silicone protective film to move. Then start the cylinder 5. The cylinder 5 is powered on to drive the sliding rod 4 to slide up and down, thereby cutting the silicone protective film.

[0076] When the position of the tool 11 needs to be adjusted, first pinch the two limit bars 13 and bring them closer to each other, and at the same time, the springs 14 are squeezed and contracted. When the two limit bars 13 enter the two limit grooves 12 respectively, push up the T-shaped block 8, pull the T-shaped block 8 to a suitable position by observing the scale line 18, pull the T-shaped block 8 downward, and then release the two limit bars 13. Under the action of the rebound force of the springs 14, the two limit bars 13 slide and move away from each other, and then the two limit bars 13 are inserted into the limit grooves 7, so that the position of the T-shaped block 8 can be fixed, which is convenient for personnel to change the position of the tool 11, and no tools are needed, and the operation is simple;

[0077] When the tool 11 needs to be disassembled, the operating disk 17 is first rotated forward and the threaded rod 16 is driven to rotate forward. Under the action of the thread, the threaded rod 16 drives the two sliding blocks 15 to slide and move away from each other. When the two sliding blocks 15 are disengaged from the limiting column 10, the limiting column 10 can be rotated 90°, and then the tool 11 is pulled downward. The tool 11 drives the limiting column 10 to disengage from the limiting groove 9, and the tool 11 can be disassembled.

[0078] When the tool 11 needs to be installed, first place the new tool 11 under the T-block 8, then the limit column 10 will be inserted into the limit groove 9, then the tool 11 is rotated 90°, the tool 11 drives the limit column 10 to rotate 90°, and then the operating disk 17 is rotated in the opposite direction, the operating disk 17 drives the threaded rod 16 to rotate in the opposite direction, under the action of the thread, the threaded rod 16 drives the two sliding blocks 15 to slide and approach each other, and then the two sliding blocks 15 are inserted into the limit column 10, the position of the limit column 10 can be fixed, so as to facilitate the installation of the tool 11 without the need for tools.

[0079] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A cutting device for producing silicone protective film, characterized in that: include: A workbench (1), a winding roller (2) is rotatably mounted on the workbench (1), a motor (3) is fixedly mounted on one side of the workbench (1), the motor (3) is located on one side of the winding roller (2), and the output shaft of the motor (3) passes through the workbench (1) and is coaxially connected to the winding roller (2), a sliding rod (4) is slidably mounted on the workbench (1) and located on one side of the winding roller (2), a cylinder (5) is fixedly mounted on the workbench (1) and located above the sliding rod (4), the telescopic end of the cylinder (5) passes through the workbench (1) and is fixedly connected to the top of the sliding rod (4), and a raw material roller (6) is rotatably mounted on the workbench (1) and located on one side of the sliding rod (4); A limiting groove three (7), wherein the limiting groove three (7) is provided in the sliding rod (4), and a T-shaped block (8) is movably installed in the limiting groove three (7); A fixing assembly, the fixing assembly being located in the T-shaped block (8) and being used to fix the position of the T-shaped block (8); A limiting groove (9), wherein the limiting groove (9) is provided in the T-shaped block (8), and a limiting column (10) is movably installed in the limiting groove (9), and the lower end of the limiting column (10) passes through the limiting groove (9) and extends to the outside and is fixedly installed with a tool (11); A limiting component is located in the tool (11) and is used to limit the position of the limiting column (10).

2. A cutting device for producing silicone protective film according to claim 1, characterized in that: The fixing assembly comprises: Two limiting grooves (12), both limiting grooves (12) are arranged in the T-shaped block (8) and are located above the limiting groove (9), limiting strips (13) are slidably installed in the two limiting grooves (12), the sides of the two limiting strips (13) that are away from each other respectively penetrate the two limiting grooves (12) and extend into the limiting groove (7), the limiting strips (13) are plugged into the limiting groove (7), the front sides of the two limiting strips (13) penetrate the limiting groove (12) and extend to the outside, and the sides of the two limiting strips (13) that are close to each other are respectively fixed with a plurality of springs (14) fixed to the inner wall of the limiting groove (12).

3. A cutting device for producing silicone protective film according to claim 2, characterized in that: The limiting component comprises: Two sliding blocks (15), both of which are slidably installed in the limiting groove (9), and the sliding blocks (15) are plugged into the limiting column (10), a threaded rod (16) is rotatably installed in the limiting groove (9), one end of the threaded rod (16) passes through the two sliding blocks (15) and the limiting groove (9) and extends to the outside, the threaded rod (16) is provided with two sections of threads with opposite rotation directions, and the threaded rod (16) is threadedly connected to the two sliding blocks (15).

4. A cutting device for producing silicone protective film according to claim 3, characterized in that: An operating panel (17) is fixedly mounted on one end of the threaded rod (16).

5. A cutting device for producing silicone protective film according to claim 1, characterized in that: The output shaft of the motor (3) is rotatably connected to the workbench (1), and the telescopic end of the cylinder (5) is slidably connected to the workbench (1).

6. A cutting device for producing silicone protective film according to claim 1, characterized in that: A scale line (18) is provided on the workbench (1) and located on one side of the sliding rod (4).

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