Presser foot structure capable of reducing warping
By designing a presser foot structure including a mounting base, mounting rod, presser foot, rotating rod and spring, the problem of warping and transport instability of copper sheets during chip production is solved, and higher stability and lower scratch risk is achieved.
Patent Information
- Application Number
- CN202422135436.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-08-30
AI Technical Summary
During the chip production process, the copper sheet is prone to warp due to thinness, affecting the chip's position accuracy and subsequent processing accuracy. In the prior art, elastic baffles are used to fix the copper sheet, but their structure is unstable and it is easy to deform during cleaning or disassembly, resulting in unstable conveying of the copper sheet and increasing the risk of scratching.
A presser foot structure is designed to reduce warpage, including a mounting base, mounting rod, presser foot, rotating rod and spring. The presser foot provides stable downcomer by combining the mounting rod and the rotating rod, using springs to reduce the possibility of copper sheet warping, and adjusts the pressure through adjusting the bolts to adapt to different working conditions.
This structure maintains the presser foot pressure through continuous spring tension, improves the stability of copper sheet conveying, reduces the risk of warping and scratching, and is suitable for different working conditions.
Smart Images
Figure CN223023232U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of chip production auxiliary equipment, and in particular to a pressing foot structure for reducing warping. Background Art
[0002] Currently, when producing chips, in order to achieve the transportation of chips, copper sheets are often used as carriers for chips. The chips are fixed on the copper sheets, and then the transportation of the chips is realized by transporting the copper sheets. During the transportation of the copper sheets, since the copper sheets are relatively thin, it is easy for the copper sheets to warp, which will affect the position accuracy of the chips on the copper sheets, and further affect the subsequent processing accuracy of the chips. In the prior art, in order to prevent the copper sheets from warping during transportation, elastic retaining sheets are often provided on the copper sheets. The elastic retaining sheets press down and fix the copper sheets, which can improve the stability of the copper sheet transportation.
[0003] However, the structure of the elastic retaining sheet is unstable. When cleaning or disassembling and assembling the elastic retaining sheet, it is easy for the elastic retaining sheet to deform, which may lead to insufficient downward pressure of the elastic retaining sheet on the copper sheet, reducing the stability of the copper sheet transportation. Even worse, the elastic retaining sheet may extend to the area where the chips are attached to the copper sheet. During the transportation of the copper sheet, the deformed elastic retaining sheet is likely to scratch the copper sheet. Utility Model Content
[0004] This application provides a pressing foot structure for reducing warping, aiming to improve the stability of the copper sheet during transportation and reduce the possibility of scratching the copper sheet.
[0005] The pressing foot structure for reducing warping provided by this application adopts the following technical solution:
[0006] A pressing foot structure for reducing warping includes a mounting base located on one side of the copper sheet in the width direction; a mounting rod located above the copper sheet, with the length direction of the mounting rod arranged along the width direction of the copper sheet. There are two pressing feet provided on the mounting rod. The two pressing feet are spaced along the length direction of the mounting rod, and the lower sides of the pressing feet abut against the copper sheet; a rotating rod with the length direction arranged along the length direction of the copper sheet. The middle of the rotating rod is rotatably connected to the mounting base. One end of the rotating rod is connected to the mounting rod, and a spring is provided at the other end of the rotating rod. The spring is located between the rotating rod and the mounting base in the vertical direction, and the upper end of the spring is connected to the rotating rod, and the lower end is connected to the mounting base.
[0007] By adopting the above technical solution, two pressing feet are arranged on the mounting rod, and the two pressing feet are arranged at intervals along the length direction of the mounting rod, so that the two pressing feet can press both sides of the copper sheet in the width direction. The pressing feet apply pressure to the copper sheet, thereby reducing the possibility of warping of the copper sheet during transportation. The middle of the rotating rod is rotatably connected to the mounting seat, and a spring is arranged at one end of the rotating rod, and the other end is connected to the mounting column, so that the elastic force of the spring can be used to realize the stable pressure of the pressing feet on the copper sheet. This can provide stable and uniform pressure for the copper sheet and improve the stability of copper sheet transportation. Since the pressure of the pressing feet on the copper sheet in this application is provided by the spring and the pressing feet themselves do not have strong elasticity, the structural stability of the pressing feet is such that the pressing feet are not easily deformed during cleaning or disassembly, which can reduce the possibility of scratching the copper sheet by the pressing feet. Therefore, the pressing foot structure of this application can improve the stability of the copper sheet during transportation and reduce the possibility of scratching the copper sheet.
[0008] Optionally, an adjusting bolt is further arranged on the rotating rod. The adjusting bolt is threadedly connected to the rotating rod, and the axial direction of the adjusting bolt is arranged vertically or obliquely in the vertical direction. The lower end of the adjusting bolt abuts against the mounting seat.
[0009] By adopting the above technical solution, since the adjusting bolt is threadedly connected to the rotating rod and the lower end of the adjusting bolt abuts against the mounting seat, the length of the lower end of the adjusting bolt extending out of the rotating rod can be changed by screwing the adjusting bolt, which can limit the rotation angle of the rotating rod, and further can change the pressure applied by the pressing feet on the copper sheet, so that the pressing foot structure of this application can be applicable to different working conditions.
[0010] Optionally, a first hole is formed through the rotating rod. One end of the mounting rod is in plug-in fit with the first hole, and the mounting rod is slidably connected to the inner wall of the first hole along its own length direction.
[0011] By adopting the above technical solution, the formation of the first hole realizes the detachable connection between the rotating rod and the mounting rod. At the same time, it is also convenient to adjust the position of the mounting rod along the length direction of the mounting rod itself.
[0012] Optionally, a second hole is formed in the rotating rod. One end of the second hole communicates with the first hole; a first bolt is arranged on the rotating rod. The first bolt is in plug-in fit with the second hole, the first bolt is threadedly connected to the inner wall of the second hole, and one end of the first bolt abuts against the mounting rod.
[0013] By adopting the above technical solution, through the threaded connection between the first bolt and the second hole, after the installation rod and the rotating rod are fixed in position, by tightening the first bolt, one end of the first bolt abuts against the installation rod, which can fix the relative positions of the installation rod and the rotating rod, prevent displacement during the copper sheet conveying process, and ensure the stability of the presser foot structure.
[0014] Optionally, the presser foot includes an installation block and a long pressing plate. The installation block is connected to the installation rod. The length direction of the long pressing plate is arranged along the length direction of the copper sheet, and one end of the long pressing plate is connected to the installation block, and the lower side of the long pressing plate abuts against the copper sheet.
[0015] By adopting the above technical solution, since the long pressing plate abuts against the copper sheet, the pressing action of the presser foot on the copper sheet is realized. At the same time, due to the shape setting of the long pressing plate, the contact area between the presser foot and the copper sheet can be increased, thereby optimizing the pressure distribution and reducing the possibility of warping of the copper sheet due to uneven pressure.
[0016] Optionally, the lower side of the installation block is spaced from the copper sheet. One end of the long pressing plate facing the installation block is bent obliquely upward and connected to the installation block, and the bent portion of the long pressing plate is in an arc transition.
[0017] By adopting the above technical solution, the arc-shaped bending design on the long pressing plate helps to reduce the scratching and damage to the copper sheet, while maintaining the uniform distribution of pressure.
[0018] Optionally, the presser foot is slidably connected to the installation rod along the length direction of the installation rod.
[0019] By adopting the above technical solution, the presser foot can slide along the installation rod, which can adjust the relative positions between the two presser feet, so that the presser foot structure of the present application can adapt to copper sheets of different sizes, and the applicable range of the presser foot structure of the present application can be improved.
[0020] Optionally, a sliding hole is penetrated through the presser foot. The installation rod is inserted and matched with the sliding hole, and the installation rod is slidably connected to the inner wall of the sliding hole along its own length direction; a fixing hole is opened on the presser foot. One end of the fixing hole is communicated with the sliding hole. A fixing bolt is inserted into the fixing hole. The fixing bolt is threadedly connected with the inner wall of the fixing hole, and one end of the fixing bolt abuts against the installation rod.
[0021] By adopting the above technical solution, firstly, the opening of the sliding hole realizes the sliding connection between the presser foot and the installation rod. Secondly, due to the matching setting of the fixing hole and the fixing bolt, after the position of the presser foot is fixed, the presser foot and the installation rod can be fixed, which can prevent the presser foot from displacing during the copper sheet conveying process.
[0022] In summary, the present application includes at least one of the following beneficial technical effects:
[0023] 1. In the present application, the spring continuously maintains tension, so that the presser foot continuously maintains a downward pressing trend. Thus, during the conveying process of the copper sheet, the copper sheet is ensured to be flat and warping is avoided; the presser foot itself does not have strong elasticity, so the structural stability of the presser foot is such that during the cleaning or disassembly process, the presser foot is not easily deformed, which can reduce the possibility of the presser foot scratching the copper sheet.
[0024] 2. By setting the adjusting bolt in the present application, the pressure exerted by the presser foot on the copper sheet can be adjusted, so that the presser foot structure of the present application can be applicable to different working conditions.
[0025] 3. By setting the structure of the presser foot in the present application, the possibility of copper sheet warping can be reduced, and the possibility of the copper sheet being scratched can also be reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 is the overall structural schematic diagram of the presser foot structure of the present application when it is working.
[0027] Figure 2 is the overall structural schematic diagram of the presser foot structure of the present application.
[0028] In the figure, 1 is the mounting base; 2 is the mounting rod; 3 is the presser foot; 31 is the mounting block; 311 is the sliding hole; 312 is the fixing hole; 313 is the fixing bolt; 32 is the long pressing plate; 4 is the rotating rod; 41 is the adjusting bolt; 42 is the adjusting hole; 43 is the first hole; 44 is the second hole; 45 is the first bolt; 5 is the spring; 100 is the copper sheet. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0029] The following will further describe the present application in detail with reference to the Figure 1 - reference Figure 2 drawings.
[0030] A presser foot structure for reducing warping, referring to Figure 1 and Figure 2 , includes a mounting base 1, a mounting rod 2 and two presser feet 3. The mounting base 1 is located on one side of the copper sheet 100 in the width direction, and the length direction of the mounting base 1 is arranged along the length direction of the copper sheet 100. The mounting rod 2 is located above the copper sheet 100, and the length direction of the mounting rod 2 is arranged along the width direction of the copper sheet 100, and one end of the length direction of the mounting rod 2 is connected to the mounting base 1. The two presser feet 3 are both arranged on the mounting rod 2, and the two presser feet 3 are arranged at intervals along the length direction of the mounting rod 2. The lower sides of the two presser feet 3 both abut against the copper sheet 100. The mounting base 1 and the mounting rod 2 realize the installation of the two presser feet 3, and the two presser feet 3 can press both sides of the copper sheet 100 in the width direction, which can improve the stability of the conveyance of the copper sheet 100.
[0031] Reference Figure 1 and Figure 2 A rotating rod 4 is arranged between the mounting base 1 and the mounting rod 2. The rotating rod 4 is located above the mounting base 1. The length direction of the rotating rod 4 is arranged along the length direction of the copper strip. The middle part of the rotating rod 4 is rotatably connected to the mounting base 1, and the axial direction of the rotating shaft between the rotating rod 4 and the mounting base 1 is arranged along the width direction of the copper sheet 100. Such a structural arrangement makes the rotating rod 4 and the mounting base 1 form a lever.
[0032] Reference Figure 1 and Figure 2 One end of the rotating rod 4 is connected to the mounting rod 2, and a spring 5 is arranged at the other end of the rotating rod 4. The spring 5 is located between the rotating rod 4 and the mounting base 1 along the vertical direction. The spring 5 is arranged along the vertical direction. The upper end of the spring 5 is connected to the rotating rod 4, and the lower end of the spring 5 is connected to the upper side of the mounting base 1. Under the action of the elastic force of the spring 5 itself, the end of the rotating rod 4 far from the spring 5 has a tendency to move downward, which enables the mounting rod 2 and the pressing foot 3 to stably press the copper sheet 100.
[0033] Reference Figure 1 and Figure 2 An adjusting bolt 41 is also arranged on the rotating rod 4, and the adjusting bolt 41 is located between the spring 5 and the mounting rod 2 along the length direction of the rotating rod 4, and the adjusting bolt 41 is located on the side of the rotating shaft between the mounting base 1 and the rotating rod 4 close to the mounting rod 2. The rotating rod 4 is provided with an adjusting hole 42, the adjusting hole 42 penetrates through the rotating rod 4, and the adjusting hole 42 is a threaded hole. The adjusting bolt 41 is inserted and matched with the adjusting hole 42, and the adjusting bolt 41 is threadedly connected with the inner wall of the adjusting hole 42. The axial direction of the adjusting bolt 41 is arranged along the vertical direction or is inclined in the vertical direction, and the lower end of the adjusting bolt 41 abuts against the upper side of the mounting base 1.
[0034] Reference Figure 1 and Figure 2 Since the lower end of the adjusting bolt 41 abuts against the mounting base 1, the end of the rotating rod 4 connected to the mounting rod 2 can be limited, thereby controlling the downward pressing force of the pressing foot 3 on the copper sheet 100. By screwing the adjusting bolt 41, changing the length of the lower end of the adjusting bolt 41 extending out of the adjusting hole 42 can change the downward pressing force of the pressing foot 3, so that the pressing foot structure of the present application can adapt to different working conditions.
[0035] Reference Figure 1 and Figure 2 The mounting rod 2 is detachably connected to the rotating rod 4. A first hole 43 is formed in the rotating rod 4, the first hole 43 penetrates through the rotating rod 4, the mounting rod 2 is inserted and matched with the first hole 43, and the mounting rod 2 is slidably connected to the inner wall of the first hole 43 along its own length direction. Such a structural arrangement facilitates the installation of the mounting rod 2 and the mounting rod 2.
[0036] Reference Figure 1 andFigure 2 Moreover, a second hole 44 is formed in the rotating rod 4. One end of the second hole 44 communicates with the first hole 43, and the axial direction of the first hole 43 is perpendicular to the axial direction of the second hole 44. The second hole 44 is a threaded hole, and a first bolt 45 is inserted into the second hole 44. The first bolt 45 is threadedly connected to the inner wall of the second hole 44, and one end of the first bolt 45 abuts against the mounting rod 2. By tightening the first bolt 45, the first bolt 45 can be pressed tightly against the mounting rod 2, so as to fix the mounting rod 2 and the rotating rod 4, and improve the connection stability between the mounting rod 2 and the rotating rod 4.
[0037] Referring to Figure 1 and Figure 2 As shown in FIGS.
[0038] Referring to Figure 1 and Figure 2 The pressing foot 3 includes a mounting block 31 and a long pressing plate 32. The length directions of both the mounting block 31 and the long pressing plate 32 are arranged along the length direction of the copper sheet 100. One end of the mounting block 31 is detachably connected to the mounting rod 2, and the other end is connected to the long pressing plate 32. The lower side of the mounting block 31 is spaced from the copper sheet 100, and the lower side of the long pressing plate 32 abuts against the copper sheet 100. One end of the long pressing plate 32 facing the corresponding mounting block 31 is inclined upward and bent, and the upper end of the bent portion of the long pressing plate 32 is fixedly connected to the corresponding mounting block 31, and the bent portion of the long pressing plate 32 is in an arc transition.
[0039] Referring to Figure 1 and Figure 2 The arrangement of the long pressing plate 32 can increase the contact length between the pressing foot 3 and the copper sheet 100, thereby increasing the pressing area of the pressing foot 3, improving the stability of the copper sheet 100 conveying, and reducing the possibility of the copper sheet 100 warping. The arc transition setting on the long pressing plate 32 can prevent the pressing foot 3 from scratching the copper sheet 100.
[0040] Referring to Figure 1 and Figure 2 A sliding hole 311 is formed through the mounting block 31. The sliding hole 311 is inserted and matched with the mounting rod 2, and the mounting rod 2 is slidably connected to the inner wall of the sliding hole 311 along its own length direction. The formation of the sliding hole 311 facilitates the installation of the pressing foot 3 on the mounting rod 2, and also facilitates adjusting the distance between the two pressing feet 3 according to the actual size of the copper sheet 100, thereby improving the applicable range of the pressing foot structure of the present application.
[0041] Reference Figure 1 and Figure 2 The implementation principle of the embodiment of the present application is as follows: when conveying the copper sheet 100, under the action of the spring 5, the end of the rotating rod 4 connected to the spring 5 rises, and the end of the rotating rod 4 connected to the mounting rod 2 falls, which makes the two presser feet 3 press on both sides of the copper sheet 100 in the width direction, which ensures that the copper sheet 100 remains flat and avoids warping during the conveying process of the copper sheet 100. By turning the adjusting bolt 41 and changing the length of the adjusting bolt 41 extending out of the adjusting hole 42, the downward pressure of the presser foot 3 can be adjusted, so that the presser foot structure can adapt to different working conditions.
[0042] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A presser foot structure for reducing warping, characterized in that: include: A mounting seat (1), the mounting seat (1) being located on one side in the width direction of the copper sheet (100); A mounting rod (2), the mounting rod (2) being located on the upper side of the copper sheet (100), the length direction of the mounting rod (2) being arranged along the width direction of the copper sheet (100), the mounting rod (2) being provided with two presser feet (3), the two presser feet (3) being arranged at intervals along the length direction of the mounting rod (2), and the lower sides of the presser feet (3) being in contact with the copper sheet (100); A rotating rod (4), wherein the length direction of the rotating rod (4) is arranged along the length direction of the copper sheet (100), the middle part of the rotating rod (4) is rotatably connected to the mounting seat (1), one end of the rotating rod (4) is connected to the mounting rod (2), and the other end of the rotating rod (4) is provided with a spring (5), the spring (5) is located between the rotating rod (4) and the mounting seat (1) in the vertical direction, and the upper end of the spring (5) is connected to the rotating rod (4), and the lower end is connected to the mounting seat (1).
2. A presser foot structure for reducing warping according to claim 1, characterized in that: The rotating rod (4) is also provided with an adjusting bolt (41), the adjusting bolt (41) being connected to the rotating rod (4) via a thread, and the adjusting bolt (41) is axially arranged in a vertical direction or inclined in a vertical direction, and the lower end of the adjusting bolt (41) is in contact with the mounting seat (1).
3. A presser foot structure for reducing warping according to claim 1, characterized in that: The rotating rod (4) is provided with a first hole (43) extending therethrough, one end of the mounting rod (2) is plugged into and fitted with the first hole (43), and the mounting rod (2) is slidably connected to the inner wall of the first hole (43) along its length direction.
4. A presser foot structure for reducing warping according to claim 3, characterized in that: The rotating rod (4) is provided with a second hole (44), one end of which is connected to the first hole (43); the rotating rod (4) is provided with a first bolt (45), the first bolt (45) is plug-fitted into the second hole (44), the first bolt (45) is connected to the inner wall of the second hole (44) by a thread, and one end of the first bolt (45) is in contact with the mounting rod (2).
5. A presser foot structure for reducing warping according to claim 1, characterized in that: The presser foot (3) comprises a mounting block (31) and a long pressing plate (32); the mounting block (31) is connected to the mounting rod (2); the length direction of the long pressing plate (32) is arranged along the length direction of the copper sheet (100); one end of the long pressing plate (32) is connected to the mounting block (31); the lower side of the long pressing plate (32) contacts the copper sheet (100).
6. A presser foot structure for reducing warping according to claim 5, characterized in that: The lower side of the mounting block (31) is spaced apart from the copper sheet (100); one end of the long pressing plate (32) is inclined and bent upwards towards the mounting block (31) and connected to the mounting block (31); and the bending portion of the long pressing plate (32) forms an arc-shaped transition.
7. A presser foot structure for reducing warping according to claim 1, characterized in that: The presser foot (3) is slidably connected to the mounting rod (2) along the length direction of the mounting rod (2).
8. A presser foot structure for reducing warping according to claim 7, characterized in that: The presser foot (3) is provided with a sliding hole (311) extending therethrough, the mounting rod (2) is plugged into and fitted with the sliding hole (311), and the mounting rod (2) is slidably connected to the inner wall of the sliding hole (311) along its length direction; The presser foot (3) is provided with a fixing hole (312), one end of the fixing hole (312) is communicated with the sliding hole (311), a fixing bolt (313) is inserted into the fixing hole (312), the fixing bolt (313) is connected to the inner wall of the fixing hole (312) by means of a thread, and one end of the fixing bolt (313) is in contact with the mounting rod (2).