Intermittent presser foot mechanism

Abstract

The utility model relates to an intermittent presser foot mechanism, and relates to the technical field of chip production auxiliary equipment.The intermittent presser foot mechanism comprises a mounting base, a rotating rod and a presser foot, the presser foot is arranged on the mounting base and slidably connected with the mounting base in the vertical direction, the middle of the rotating rod is rotatably connected with the mounting base, one end of the rotating rod is rotatably connected with the presser foot, and the other end of the rotating rod is rotatably connected with the mounting base; the other end is connected with an intermittent driving piece for driving the rotating rod to rotate back and forth; the intermittent driving part comprises a cam, a driving groove is formed in one end of the rotating rod, the cam is inserted into the driving groove, the outer side wall of the cam abuts against the inner side wall of the driving groove, and the cam is coaxially connected with a driving motor driving the cam to rotate. According to the intermittent presser foot mechanism, the copper sheet can be fixed periodically, and when the chip is installed on the copper sheet, the copper sheet is fixed, so that the stability of the copper sheet is improved, the possibility of position deviation of the copper sheet is reduced, the installation precision of the chip is improved, and the subsequent chip processing precision is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of chip production auxiliary equipment, and in particular to an intermittent presser foot mechanism. Background Art

[0002] Currently, when producing chips, copper sheets are often used as chip carriers to transport the chips. The chips are fixed to the copper sheets and then transported by conveying the copper sheets. This requires the chips to be fixed to the copper sheets using a corresponding mounting mechanism. However, due to the thinness of the copper sheets themselves, when the mounting mechanism installs the chips on the copper sheets, the copper sheets are easily displaced or deformed due to external forces. This will cause the position of the chips on the copper sheets to shift, which in turn affects the accuracy of subsequent chip processing. Utility Model Content

[0003] The present application provides an intermittent presser foot mechanism, the purpose of which is to fix the copper sheet when the chip is installed on the copper sheet, thereby improving the stability of the copper sheet, reducing the possibility of position deviation of the copper sheet, and improving the chip installation accuracy to ensure the subsequent chip processing accuracy.

[0004] The intermittent presser foot mechanism provided in this application adopts the following technical solution:

[0005] An intermittent presser foot mechanism comprises a mounting seat, a rotating rod and a presser foot, the presser foot being arranged on the mounting seat and being slidably connected to the mounting seat in a vertical direction, the middle portion of the rotating rod being rotatably connected to the mounting seat, one end of the rotating rod being rotatably connected to the presser foot, and the other end being connected to an intermittent driving member for driving the rotating rod to rotate back and forth; the intermittent driving member comprises a cam, a driving groove being provided at one end of the rotating rod, the cam being inserted into the driving groove, and the outer side wall of the cam abutting against the inner side wall of the driving groove, the cam being coaxially connected to a driving motor for driving the cam to rotate.

[0006] By adopting the above technical solution, the intermittent presser foot mechanism is designed through the combination of the mounting base, the rotating rod, and the presser foot. When the intermittent driving member drives the rotating rod to rotate back and forth, the end of the rotating rod facing the presser foot will fluctuate in the vertical direction, which will cause the presser foot to perform periodic vertical fluctuations. Therefore, when the intermittent presser foot mechanism is used for conveying copper sheets, the periodic fluctuation of the presser foot will enable the presser foot to periodically press the copper sheet. Therefore, when the copper sheet needs to be conveyed, the presser foot is separated from the copper sheet, which can ensure the normal conveyance of the copper sheet. When installing the chip, the presser foot presses the copper sheet to fix the copper sheet and reduce the possibility of the copper sheet shifting.

[0007] In this embodiment, the intermittent drive member can realize the reciprocating motion of the rotating rod through the cooperation of the driving motor and the cam, and the structural design of the cam, thereby satisfying the periodic ups and downs motion of the presser foot in the vertical direction. This can improve the degree of automation of the entire processing process.

[0008] Optionally, two first sliders are provided under the presser foot, the two first sliders are arranged in sequence along the length direction of the presser foot, the lower sides of the two first sliders are arranged flush, and the first sliders are slidably connected to the presser foot along the length direction of the presser foot.

[0009] By adopting the above-mentioned technical solution, the two first sliders are arranged in sequence along the length direction of the presser foot, the lower sides of the two first sliders are flush, and the first sliders are both slidably connected to the presser foot along the length direction of the presser foot. This can adjust the distance between the two first sliders, and then adjust the length of the entire presser foot, so that the length of the presser foot can match copper sheets of different sizes, which can increase the scope of application of the intermittent presser foot mechanism of this application.

[0010] Optionally, an elastic pad is provided at the lower side of the presser foot, the length direction of the elastic pad is arranged along the length direction of the presser foot, the elastic pad is located at the lower side of the first slider, and the two first sliders are detachably connected to the elastic pad.

[0011] By adopting the above technical solution, an elastic pad is provided under the lower side of the presser foot, which can buffer the pressure of the presser foot on the copper sheet and reduce the deformation of the copper sheet caused by uneven force, thereby reducing the damage of the presser foot to the copper sheet.

[0012] Optionally, a plurality of slots are provided on the lower side of the first sliding block, and a plurality of posts are provided on the upper side of the elastic pad. The posts are provided in one-to-one correspondence with the slots, and the posts are engaged with the corresponding slots.

[0013] By adopting the above technical solution, the slot on the lower side of the first slider cooperates with the clamping column on the upper side of the elastic pad, thereby realizing rapid disassembly and assembly of the elastic pad and the slider. Such structural design improves the convenience of assembly and maintenance of the elastic pad.

[0014] Optionally, the presser foot is provided with a plurality of fixing bolts, and the presser foot is opened with a plurality of fixing holes, and the plurality of fixing holes are arranged in a one-to-one correspondence with the fixing bolts, the fixing bolts are plugged into the corresponding fixing holes, and the fixing bolts are connected to the corresponding inner walls of the fixing holes through threads; the fixing bolts are arranged in a one-to-one correspondence with the first slider, and one end of the fixing bolt abuts against the corresponding first slider.

[0015] By adopting the above technical solution, through the cooperation between the fixing bolt and the fixing hole, when the fixing bolt is tightened, the fixing bolt abuts against the first slider, which can achieve fixation of the corresponding position of the first slider.

[0016] Optionally, a plurality of scales are provided on the side wall of the first sliding block, and the plurality of scales are arranged in sequence and spaced apart along the length direction of the presser foot.

[0017] By adopting the above technical solution, the scale on the side wall of the first slider provides an intuitive reference for adjusting the position of the first slider, which facilitates quick and accurate adjustment of the position of the first slider to accommodate copper sheets of different sizes.

[0018] Optionally, a filling block is provided between the two first sliders, the filling block is detachably connected to the presser foot, the lower side of the filling block is flush with the lower side of the first slider, and the opposite sides of the filling block respectively contact with the corresponding first sliders.

[0019] By adopting the above technical solution, the setting of the filling block can fill the gap between the two first sliders. When the presser foot presses the copper sheet, the setting of the filling block ensures that the copper sheet is evenly stressed, reducing damage to the copper sheet.

[0020] Optionally, the middle portion of the elastic pad is detachably connected to the filling block.

[0021] By adopting the above technical solution, the elastic pad and the filling block are detachably connected, which enables the filling block to be made into an elastic pad, thereby improving the stability of the elastic pad installation.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. The intermittent presser foot mechanism of the present application can periodically fix the copper sheet, and fix the copper sheet when the chip is installed on the copper sheet, thereby improving the stability of the copper sheet, reducing the possibility of position deviation of the copper sheet, and improving the chip installation accuracy, ensuring the subsequent chip processing accuracy.

[0024] 2. The present application can adjust the length of the presser foot through the setting of the first slider, so that the intermittent presser foot mechanism of the present application can be suitable for copper sheets of different sizes.

[0025] 3. The present application can reduce the impact of the presser foot on the copper sheet by setting the elastic pad, thereby reducing the damage of the presser foot to the copper sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the presser foot mechanism of Example 1 of the present application.

[0027] Figure 2This is a schematic diagram of the overall structure of the presser foot of Example 2 of the present application.

[0028] Figure 3 It is a schematic diagram of the exploded structure of the presser foot of Example 2 of the present application.

[0029] Figure 4 This is a schematic diagram of the exploded structure of another position of the presser foot in Example 2 of the present application.

[0030] In the figure, 1. mounting seat; 11. guide seat; 2. rotating rod; 3. presser foot; 31. slide groove; 32. fixing hole; 33. fixing bolt; 34. mounting groove; 35. closing plate; 4. intermittent driving member; 41. cam; 42. driving motor; 43. driving groove; 5. first slider; 51. guide block; 52. scale; 6. filling block; 61. mounting block; 7. elastic pad; 71. clamping column; 72. clamping groove. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1 -Attached Figure 4 , further details of this application are given.

[0032] Example 1: An intermittent presser foot mechanism, referring to Figure 1 , includes a mounting seat 1, a rotating rod 2 and a presser foot 3. A guide seat 11 is provided on the mounting seat 1. The guide seat 11 is slidably connected to the mounting seat 1 in the vertical direction, and the upper side of the guide seat 11 is rotatably connected to the rotating rod 2, and the lower side of the guide seat 11 is connected to the presser foot 3. The rotating rod 2 is rotatably connected to the mounting seat 1 along the middle part of its own length direction, and one end of the rotating rod 2 is rotatably connected to the guide seat 11. At this time, the rotating rod 2 and the mounting seat 1 form a lever. When one end of the rotating rod 2 rotates, the other end of the rotating rod 2 drives the guide seat 11 to move in the vertical direction, and then drives the presser foot 3 to move in the vertical direction. In this embodiment, when the presser foot 3 moves a large distance in the vertical direction, one end of the rotating rod 2 is rotatably connected to the guide seat 11, and the guide seat 11 is slidably connected to the rotating rod 2 along the length direction of the rotating rod 2.

[0033] Reference Figure 1An intermittent driving member 4 is provided at one end of the rotating rod 2 away from the guide seat 11. The intermittent driving member 4 includes a cam 41. A driving groove 43 is provided on the rotating rod 2. The cam 41 is inserted into the driving groove 43, and the outer wall of the cam 41 abuts against the inner wall of the driving groove 43. The cam 41 is coaxially connected to a driving motor 42. When the driving motor 42 drives the cam 41 to rotate, the structural setting of the cam 41 enables the rotating rod 2 to reciprocate with the rotating axis between the rotating rod 2 and the mounting seat 1 as the center point. Therefore, the ups and downs movement of one end of the rotating rod 2 will cause the other end of the rotating rod 2 to ups and down, thereby driving the guide seat 11 to ups and down in the vertical direction, thereby realizing the reciprocating movement of the presser foot 3 in the vertical direction, which can meet the intermittent working requirements of the presser foot mechanism of the present application.

[0034] The implementation principle of the embodiment of the present application is as follows: when the drive motor 42 drives the cam 41 to rotate, the presser foot 3 periodically fluctuates as the cam 41 rotates. When installing the chip, the presser foot 3 descends to press the copper sheet, which can increase the stability of the copper sheet and prevent the copper sheet from shifting, thereby improving the installation accuracy of the chip; after the chip is installed, the presser foot 3 rises, at which point the presser foot 3 is separated from the copper sheet, and the copper sheet can be transported normally. According to the actual periodic switching between copper sheet transportation and chip installation, the drive motor 42 is adjusted, and then the speed of the cam 41 is adjusted, thereby changing the frequency of the periodic fluctuations of the presser foot 3, so that the periodic fluctuations of the presser foot 3 can adapt to the periodic switching between copper sheet transportation and chip installation, thereby improving work efficiency and the degree of automation of the entire process.

[0035] Example 2: An intermittent presser foot mechanism, referring to Figure 1 and Figure 2 The difference between this embodiment and embodiment 1 is that two first sliders 5 are provided on the lower side of the presser foot 3. The two first sliders 5 are arranged in sequence along the length direction of the presser foot 3, and the two first sliders 5 are both slidably connected to the presser foot 3 along the length direction of the presser foot 3. A filler block 6 is provided between the two first sliders 5. The filler block 6 is detachably connected to the presser foot 3, and the opposite sides of the filler block 6 respectively contact the corresponding first slider 5. The undersides of the two first sliders 5 and the undersides of the filler block 6 are flush with each other. By adjusting the distance between the two first sliders 5 and installing a filler block 6 of corresponding size between the two first sliders 5, the gap between the two first sliders 5 can be filled, thereby extending the length of the presser foot 3, so that the presser foot 3 can be applied to copper sheets of different sizes.

[0036] Reference Figure 2The presser foot 3 has a chute 31 on its underside, extending through the presser foot 3 along its length. A guide block 51 is provided on the upper side of the first slider 5. The guide block 51 extends along the length of the presser foot 3, and the underside of the guide block 51 is fixedly connected to the first slider 5. The guide block 51 engages with the chute 31 and slides along its length along the inner sidewall of the chute 31. The coordinated arrangement of the guide block 51 and the chute 31 establishes a sliding connection between the first slider 5 and the presser foot 3, guiding and limiting the first slider 5 and improving the stability of the first slider 5 sliding on the presser foot 3.

[0037] Reference Figure 1 and Figure 2 Two fixing holes 32 are provided on the side wall of the presser foot 3. The two fixing holes 32 are spaced apart along the length direction of the presser foot 3 and are both connected to the chute 31. A fixing bolt 33 is inserted into the fixing hole 32 and the fixing bolt 33 is connected to the inner wall of the fixing hole 32 by a thread. The fixing bolt 33 is arranged in a one-to-one correspondence with the first slider 5, and one end of the fixing bolt 33 contacts the corresponding guide block 51. When the fixing bolt 33 is loosened, the guide block 51 can slide in the chute 31, thereby adjusting the position of the corresponding first slider 5; and when the fixing bolt 33 is tightened, the fixing bolt 33 contacts the guide block 51, and the guide block 51 is fixed at this time, thereby fixing the position of the corresponding first slider 5 and preventing the first slider 5 from shifting during operation.

[0038] Reference Figure 2 and Figure 3 The guide block 51 is provided with a plurality of scales 52, which are spaced apart along the length of the guide block 51. When the first slider 5 is slid, the sliding distance of the first slider 5 can be determined by reading the scales 52 on the guide block 51. This arrangement, on the one hand, facilitates determining the distance between the two first sliders 5, and thus the length of the presser foot 3 at that time, so that the length of the presser foot 3 can be adapted to the copper sheet of corresponding size; on the other hand, it also facilitates determining the required size of the filler block 6.

[0039] Reference Figure 2 and Figure 3 The presser foot 3 has a mounting slot 34 on its underside. The mounting slot 34 extends through the presser foot 3 along its width and is located in the middle of the presser foot 3 along its length. The chute 31 is connected to the mounting slot 34. A mounting block 61 is provided on the top of the filler block 6. The mounting block 61 extends along the width of the presser foot 3 and is fixedly connected to the filler block 6 on its underside. The mounting block 61 engages with the mounting slot 34 and slides along its length along the inner sidewall of the mounting slot 34. The combination of the mounting slot 34 and the mounting block 61 facilitates the installation of a filler block 6 of corresponding size.

[0040] Reference Figure 2 and Figure 3 The presser foot 3 is provided with a closing plate 35 on both sides along its width direction. The closing plate 35 closes the mounting groove 34 and is detachably connected to the side wall corresponding to the presser foot 3. Specifically, the closing plate 35 is connected to the side wall corresponding to the presser foot 3 by bolts. The installation of the closing plate 35 can fix the filling block 6 to the presser foot 3 after the filling block 6 is installed, thereby improving the stability of the installation of the filling block 6.

[0041] Reference Figure 2 and Figure 4 Elastic pads 7 are spaced apart on the underside of the presser foot 3. The length of the elastic pads 7 is arranged along the length of the presser foot 3. The elastic pads 7 are located on the undersides of the two first sliders 5, and the elastic pads 7 are detachably connected to the undersides of the filler block 6 and the undersides of the two first sliders 5. Specifically, a plurality of slots 72 are provided on the undersides of the filler block 6 and the undersides of the two first sliders 5. A plurality of latching posts 71 are provided on the upper side of the elastic pad 7. The latching posts 71 are arranged in a one-to-one correspondence with the latching posts 72, and the latching posts 71 engage with the corresponding latching posts 72. The provision of the elastic pads 7 can reduce the impact force of the presser foot 3 on the copper sheet, reducing damage to the copper sheet. The coordinated provision of the latching posts 71 and the latching slots 72 facilitates the removal and replacement of the elastic pad 7.

[0042] The working principle of the embodiment of the present application is as follows: before using the intermittent presser foot mechanism, the distance between the two first sliders 5 is adjusted according to the width of the corresponding copper sheet. Then, a filler block 6 of a corresponding size is selected according to the spacing between the two first sliders 5. The corresponding filler block 6 is installed on the presser foot 3. Then, an elastic pad 7 is installed under the filler block 6 and the two first sliders 5. At this point, the size of the presser foot 3 can meet the requirements of the corresponding copper sheet, which allows the intermittent presser foot mechanism to be applicable to copper sheets of different sizes.

[0043] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. An intermittent presser foot mechanism, characterized in that: include: A mounting seat (1), a rotating rod (2) and a presser foot (3), wherein the presser foot (3) is arranged on the mounting seat (1) and is slidably connected to the mounting seat (1) in a vertical direction, the middle portion of the rotating rod (2) is rotatably connected to the mounting seat (1), one end of the rotating rod (2) is rotatably connected to the presser foot (3), and the other end is connected to an intermittent driving member (4) for driving the rotating rod (2) to rotate back and forth; the intermittent driving member (4) comprises a cam (41), one end of the rotating rod (2) is provided with a driving groove (43), the cam (41) is inserted into the driving groove (43), and the outer side wall of the cam (41) abuts against the inner side wall of the driving groove (43), and the cam (41) is coaxially connected to a driving motor (42) for driving the cam (41) to rotate.

2. The intermittent presser foot mechanism according to claim 1, characterized in that: Two first sliders (5) are provided on the lower side of the presser foot (3), the two first sliders (5) are arranged in sequence along the length direction of the presser foot (3), the lower sides of the two first sliders (5) are arranged flush, and the first sliders (5) are slidably connected to the presser foot (3) along the length direction of the presser foot (3).

3. The intermittent presser foot mechanism according to claim 2, characterized in that: An elastic pad (7) is provided on the lower side of the presser foot (3), and the length direction of the elastic pad (7) is provided along the length direction of the presser foot (3). The elastic pad (7) is located on the lower side of the first slider (5), and both of the first sliders (5) are detachably connected to the elastic pad (7).

4. The intermittent presser foot mechanism according to claim 3, characterized in that: A plurality of slots (72) are provided on the lower side of the first slider (5), and a plurality of clamping columns (71) are provided on the upper side of the elastic pad (7). The clamping columns (71) are arranged in a one-to-one correspondence with the clamping slots (72), and the clamping columns (71) are engaged with the corresponding clamping slots (72).

5. The intermittent presser foot mechanism according to claim 2, characterized in that: The presser foot (3) is provided with a plurality of fixing bolts (33), and the presser foot (3) is provided with a plurality of fixing holes (32). The plurality of fixing holes (32) are provided in a one-to-one correspondence with the fixing bolts (33). The fixing bolts (33) are plug-fitted into the corresponding fixing holes (32), and the fixing bolts (33) are connected to the inner walls of the corresponding fixing holes (32) through threads. The fixing bolts (33) are provided in a one-to-one correspondence with the first slider (5), and one end of the fixing bolt (33) contacts the corresponding first slider (5).

6. The intermittent presser foot mechanism according to claim 5, characterized in that: A plurality of scales (52) are provided on the side wall of the first sliding block (5), and the plurality of scales (52) are sequentially spaced along the length direction of the presser foot (3).

7. The intermittent presser foot mechanism according to claim 3, characterized in that: A filling block (6) is provided between the two first sliders (5), the filling block (6) is detachably connected to the presser foot (3), the lower side of the filling block (6) is flush with the lower side of the first slider (5), and the opposite sides of the filling block (6) respectively contact the corresponding first slider (5).

8. The intermittent presser foot mechanism according to claim 7, characterized in that: The middle portion of the elastic pad (7) is detachably connected to the gap-filling block (6).

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