POGOPIN elastic force testing device

Abstract

The present invention relates to the technical field of detection and sorting equipment, and in particular to a POGOPIN elastic force detection device. The present invention provides a POGOPIN elastic force detection device with good fixing effect, including a material guide rack, a detection component, a pushing component, a package collection frame, a servo motor, a rotating rack and a fixing mechanism, etc. The material guide rack is fixedly connected with a detection component, the material guide rack is fixedly connected with a pushing component, the material guide rack is fixedly connected with a pair of package collection frames, the material guide rack is fixedly connected with a servo motor, the material guide rack is rotatably connected with a rotating rack, the rotating rack is used to place POGOPIN, the output end of the servo motor is fixedly connected to the rotating rack, and a fixing mechanism is provided on the rotating rack. The present invention can limit and fix the POGOPIN during elastic force testing through components such as servo motors and pressure blocks, so as to avoid displacement of the POGOPIN when it is subjected to pressure, thereby affecting the test results. At the same time, the POGOPIN can be sorted according to the test results to ensure the quality of the packaged products, thereby improving the detection and sorting accuracy of the POGOPIN elastic force detection device.

Description

Technical Field

[0001] The present invention relates to the technical field of detection and sorting equipment, and in particular to a POGOPIN elastic force detection device. Background Art

[0002] POGOPIN is a precision connector used in mobile phones and other electronic products. It is widely used in semiconductor equipment for connection. It is a spring-type probe formed by three basic components: needle shaft, spring, and needle tube. It is pre-pressed by a precision instrument cat's eye. It has a precise spring structure inside. Therefore, before packaging POGOPIN, it is necessary to check the elasticity of its spring structure and sort it to ensure the quality of the product.

[0003] In the patent with publication number CN109107910A, a spring pin connector elastic force detection machine is disclosed, including a frame, a feeding mechanism installed on the frame, a material picking and transferring mechanism installed on the frame, a force measuring mechanism installed on the frame, and a product storage unit, wherein the feeding mechanism has a discharge port, the feeding mechanism can transport the spring pin connector to the discharge port, the force measuring mechanism includes a force sensor and a force measuring drive assembly connected to the force sensor, the force measuring drive assembly can drive the force sensor to reciprocate in the up and down directions, and the product storage unit includes a good product box and a bad product box The material picking and transporting mechanism can take out the spring pin connector at the discharge port, and the material picking and transporting mechanism can transport the spring pin connector to the bottom of the force sensor, and the material picking and transporting mechanism can transport the spring pin connector to the product storage unit, but this elastic force testing machine only uses a vacuum suction nozzle to adsorb and fix the bottom of the POGOPIN. The contact and fixing area between the machine as a whole and the POGOPIN is small, so that the POGOPIN is easily displaced under pressure during the elastic force testing, resulting in inaccurate elastic force testing, and affecting the subsequent sorting accuracy and the quality of the packaged products.

[0004] Based on the above situation, the present invention proposes a POGOPIN elastic force detection device with good fixing effect. Summary of the invention

[0005] In order to overcome the shortcomings that the contact and fixing area between the existing elastic force testing machine and the POGOPIN is small, so that the POGOPIN is easily displaced when subjected to pressure during the elastic force testing, thereby causing inaccurate elastic force testing and affecting the subsequent sorting accuracy and the quality of the packaged product, the present invention provides a POGOPIN elastic force testing device with good fixing effect.

[0006] The POGOPIN elastic force detection device includes a material guide rack, a detection component, a pushing component, a package collection frame, a servo motor, a rotating rack and a fixing mechanism. The material guide rack is fixedly connected to the detection component, the material guide rack is fixedly connected to the pushing component, the pushing component is fixedly connected to a pressure sensor, and the pressure sensor is electrically connected to the detection component. The material guide rack is fixedly connected to a pair of package collection frames, the material guide rack is fixedly connected to the servo motor, the servo motor is electrically connected to the detection component, the material guide rack is rotatably connected to the rotating rack, the rotating rack is used to place the POGOPIN, the output end of the servo motor is fixedly connected to the rotating rack, and a fixing mechanism is provided on the rotating rack.

[0007] As a preferred technical solution of the present invention, the detection component is fixedly connected to a display screen.

[0008] As a preferred technical solution of the present invention, the fixing mechanism for clamping and fixing the POGOPIN includes a top frame, a spring, a pressure block and a guide path, the rotating frame is slidably connected to a pair of top frames, a spring is fixed between the top frame and the rotating frame, the rotating frame is slidably connected to a pair of pressure blocks, the top frame is squeezed and matched with the pressure blocks on the same side, the top frame is provided with a guide path, and the pressure blocks slide in the guide path on the same side.

[0009] As a preferred technical solution of the present invention, the pressing block is made of rubber and has a curved surface.

[0010] As a preferred technical solution of the present invention, it also includes a material unloading mechanism for unloading POGOPIN in an orderly manner, the material unloading mechanism is arranged on the material guide frame, the material unloading mechanism includes a mounting frame, a driving motor, a gear assembly, a storage bucket and a material block, wherein the gear assembly includes an upper gear and a lower gear, and the upper gear is meshed with the lower gear, the material guide frame is fixedly connected to the mounting frame, the mounting frame is fixedly connected to the driving motor, the mounting frame is rotatably connected to pairs of material blocks, the material blocks are provided with circumferentially distributed material storage grooves, the pairs of material blocks are respectively fixedly connected to the upper gear and the lower gear in the gear assembly, the output end of the driving motor is fixedly connected to the material block on one side, and the mounting frame is fixedly connected to the storage bucket.

[0011] As a preferred technical solution of the present invention, it also includes a buffer mechanism for buffering the fall of the POGOPIN, the buffer mechanism is arranged on the material guide rack, the buffer mechanism includes a baffle rod, a rotating rod and a weight block, the material guide rack is rotatably connected to a pair of rotating rods, the rotating rods are fixedly connected to the baffle rods, and the baffle rods are fixedly connected to the weight block.

[0012] As a preferred technical solution of the present invention, the material guide rack and the baffle rod are both fixedly connected with rubber serrated pads.

[0013] As a preferred technical solution of the present invention, it also includes a knocking mechanism for preventing the POGOPIN from getting stuck. The knocking mechanism is arranged on the storage bucket, and the knocking mechanism includes a vibration block, a pushing frame, an elastic member, a knocking block and a mounting block. The storage bucket is fixedly connected to the vibration block, the storage bucket is fixedly connected to the mounting block, the mounting block is slidably connected to the pushing frame, the pushing frame is extruded and matched with the upper gear in the gear assembly, a pair of elastic members are fixedly connected between the pushing frame and the mounting block, the pushing frame is fixedly connected to the knocking block, and the knocking block and the vibration block are knocked and matched.

[0014] As a preferred technical solution of the present invention, the jacking frame is provided with a curved surface.

[0015] As a preferred technical solution of the present invention, it also includes vibration balls, and the vibration block is movably connected with a pair of vibration balls.

[0016] The beneficial effects of the present invention are:

[0017] 1. The present invention uses components such as a servo motor and a pressure block to limit and fix the POGOPIN during the elastic force test to prevent the POGOPIN from deflecting when under pressure, thereby affecting the test results. At the same time, the POGOPIN can be sorted according to the test results to ensure the quality of the packaged products, thereby improving the detection and sorting accuracy of the POGOPIN elastic force detection device.

[0018] 2. The present invention can realize the orderly and automatic unloading of POGOPINs through components such as gear assemblies and material blocks, without the need for manual placement one by one, thereby improving the user experience and also speeding up the detection and sorting efficiency of the POGOPIN elastic force detection device.

[0019] 3. The present invention can buffer and decelerate the falling POGOPIN through components such as the baffle rod and the weight block, thereby preventing the POGOPIN from falling into the packaging collection frame at a fast speed, thereby causing bumps and damages, etc., and improving the protective effect of the POGOPIN elastic force detection device on the POGOPIN.

[0020] 4. The present invention uses components such as vibration blocks and vibration balls to continuously vibrate and deflect the POGOPINs in the storage bucket by knocking until the POGOPINs at the bottom fall into the storage tank with the material blocks, thereby preventing multiple POGOPINs from squeezing each other and getting stuck when they want to enter the storage tank at the same time, thereby avoiding the need for manual inspection and unblocking, reducing the labor intensity of workers and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0022] Figure 2It is a three-dimensional structural schematic diagram of components such as the material guide rack, the detection assembly and the packaging collection frame of the present invention.

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the detection component, POGOPIN and pushing component of the present invention.

[0024] Figure 4 It is a three-dimensional structural schematic diagram of the servo motor, rotating frame, top frame and other components of the present invention.

[0025] Figure 5 It is a schematic diagram of the cross-sectional three-dimensional structure of the top frame, spring, pressure block and other components of the present invention.

[0026] Figure 6 It is a three-dimensional structural schematic diagram of components such as the spring, the pressure block and the guide path of the present invention.

[0027] Figure 7 It is a three-dimensional structural schematic diagram of the components such as the mounting frame, driving motor and gear assembly of the present invention.

[0028] Figure 8 It is a schematic diagram of the cross-sectional three-dimensional structure of the gear assembly, storage bucket, material block and other components of the present invention.

[0029] Fig. 9 It is a schematic diagram of the three-dimensional structure of the material block, the driving motor and the POGOPIN of the present invention.

[0030] Fig.10 It is a schematic diagram of the three-dimensional structure of the material guide frame, the baffle rod and the rotating frame of the present invention.

[0031] Fig.11 It is a schematic diagram of the three-dimensional structure of the baffle rod, the rotating rod and the weight block of the present invention.

[0032] Fig.12 It is a three-dimensional structural schematic diagram of components such as the vibration block, the ejector frame and the elastic member of the present invention.

[0033] Fig.13 It is a schematic diagram of the cross-sectional three-dimensional structure of the elastic member, the knocking block and the mounting block of the present invention.

[0034] Explanation of the reference numerals: 1: material guide rack, 11: detection component, 1101: POGOPIN, 1102: pushing component, 12: packaging collection frame, 13: servo motor, 14: rotating rack, 15: top rack, 16: spring, 17: pressure block, 18: guide way, 2: mounting rack, 21: driving motor, 22: gear assembly, 23: storage bucket, 24: material block, 3: stop rod, 31: rotating rod, 32: weight block, 4: vibration block, 41: top rack, 42: elastic member, 43: knocking block, 44: mounting block, 45: vibration ball. DETAILED DESCRIPTION

[0035] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] Example 1

[0037] POGOPIN elastic force testing device, such as Figure 1-Figure 6 As shown, it includes a material guide rack 1, a detection component 11, a pushing component 1102, a package collection frame 12, a servo motor 13, a rotating frame 14 and a fixing mechanism. The detection component 11 is fixedly connected to the front side of the material guide rack 1, the pushing component 1102 is fixedly connected to the upper part of the material guide rack 1, the pressure sensor is fixedly connected to the rear side of the pushing component 1102, and the pressure sensor is electrically connected to the detection component 11, the package collection frame 12 is fixedly connected to the left and right sides of the material guide rack 1, the servo motor 13 is fixedly connected to the front side of the material guide rack 1, the servo motor 13 is electrically connected to the detection component 11, the rotating frame 14 is rotatably connected to the upper part of the material guide rack 1, the rotating frame 14 is used to place POGOPIN1101, the output end of the servo motor 13 is fixedly connected to the rotating frame 14, and a fixing mechanism is provided on the rotating frame 14.

[0038] like Figure 2 As shown, a display screen is fixedly connected to the front side of the detection component 11.

[0039] like Figure 4-Figure 6 As shown, the fixing mechanism for clamping and fixing POGOPIN1101 includes a top frame 15, a spring 16, a pressure block 17 and a guide path 18. The top frame 15 is slidably connected to the left and right sides of the rotating frame 14. The spring 16 is fixed between the top frame 15 and the rotating frame 14. The pressure blocks 17 are slidably connected to the left and right sides of the rotating frame 14. The top frame 15 is squeezed and matched with the pressure blocks 17 on the same side. The top frame 15 is provided with a guide path 18, and the pressure blocks 17 slide in the guide path 18 on the same side.

[0040] like Figure 5 and Figure 6 As shown, the pressing block 17 is made of rubber and has a curved surface.

[0041] When people need to test the elastic force of POGOPIN1101, they can first place the narrower end of POGOPIN1101 on the rotating frame 14, and then use the pushing component 1102 and the pressure sensor to squeeze and compress POGOPIN1101 backward. After POGOPIN1101 is compressed to a suitable degree, the pressure sensor will transmit the elastic force data at this time to the detection component 11 and display it on the screen. Then, the pushing component 1102 and the pressure sensor will move in the opposite direction to reset, and the POGOPIN1101 will be compressed to a suitable degree. OPIN1101 will then return to its original state, during which the pushing assembly 1102 will also squeeze the top frame 15, causing the top frame 15 and the guide track 18 to move backwards, and the spring 16 will be compressed immediately, and the top frame 15 and the guide track 18 will move backwards to contact and squeeze the pressing block 17, and cause the pressing blocks 17 on the left and right sides to move toward each other until the POGOPIN1101 is clamped and fixed, so that the POGOPIN1101 can be limited and fixed in cooperation with the rotating frame 14 to prevent the POGOPIN1101 from deflecting when it is squeezed, thereby The test result is affected. After the pushing component 1102 and the pressure sensor are reset, the top frame 15 and the guide path 18 will move forward and reset under the action of the spring 16, and the pressure blocks 17 on the left and right sides will move back and reset to release the POGOPIN 1101. Then the detection component 11 will control the servo motor 13 according to whether the elastic force data of the POGOPIN 1101 meets the standard. When the elastic force of the POGOPIN 1101 is qualified, the detection component 11 will make the servo motor 13 drive the rotating frame 14 and other components to rotate clockwise, so that Qualified POGOPIN1101 falls along the material guide rack 1 into the packaging collection frame 12 on the right, and when the elastic force of POGOPIN1101 is unqualified, the detection component 11 will cause the servo motor 13 to drive the rotating rack 14 and other components to rotate counterclockwise, so that the unqualified POGOPIN1101 falls along the material guide rack 1 into the packaging collection frame 12 on the left, so as to sort the POGOPIN1101 and ensure the quality of the packaged products. After the sorting is completed, the servo motor 13 drives the rotating rack 14 and other components to move in the opposite direction and reset.

[0042] Example 2

[0043] On the basis of Example 1, Figure 7-Figure 9As shown, it also includes a feeding mechanism for allowing POGOPIN1101 to feed in an orderly manner. The feeding mechanism is arranged on the material guide frame 1, and the feeding mechanism includes a mounting frame 2, a driving motor 21, a gear assembly 22, a storage bucket 23 and a material block 24, wherein the gear assembly 22 includes an upper gear and a lower gear, and the upper gear is meshed with the lower gear. The top of the material guide frame 1 is fixedly connected to the mounting frame 2, the lower front part of the mounting frame 2 is fixedly connected to the driving motor 21, the upper and lower sides of the mounting frame 2 are rotatably connected to the material block 24, the outer side of the material block 24 is provided with a circumferentially distributed material storage trough, the upper and lower front sides of the upper and lower material blocks 24 are respectively fixedly connected to the upper gear and the lower gear in the gear assembly 22, the output end of the driving motor 21 is fixedly connected to the lower material block 24, and the top of the mounting frame 2 is fixedly connected to the storage bucket 23.

[0044] When a large number of POGOPIN1101 need to be tested for elasticity, since the efficiency of placing the POGOPIN1101 one by one manually is low, a material discharge mechanism is provided. Before the elasticity test, people can first put a large number of POGOPIN1101 into the storage bucket 23 in an orderly manner with the narrower end facing forward, and then start the driving motor 21 to drive the lower gear and the lower material block 24 to move clockwise, thereby driving the upper gear and the upper material block 24 to move counterclockwise. At this time, the POGOPIN1101 at the bottom of the storage bucket 23 will first fall into the storage trough one by one with the rotation of the upper material block 24, and then be driven by the counterclockwise rotation. It moves 180° and enters the storage trough on the top of the lower material block 24, and is finally rotated 180° clockwise and falls on the rotating frame 14. After that, whenever the POGOPIN1101 on the rotating frame 14 completes the elastic force test and sorting, the driving motor 21 will drive the lower material block 24 to rotate 90° clockwise, so that the next POGOPIN1101 falls on the rotating frame 14, and the upper material block 24 will rotate 90° counterclockwise and allow the new POGOPIN1101 to fall into the storage trough, so that the orderly and automatic unloading of POGOPIN1101 can be achieved, thereby accelerating the overall testing and sorting efficiency.

[0045] like Fig.10 and Fig.11 As shown, there is also a buffer mechanism for buffering the falling of POGOPIN1101, which is arranged on the material guide frame 1. The buffer mechanism includes a baffle rod 3, a rotating rod 31 and a weight block 32. The left and right sides of the material guide frame 1 are rotatably connected with the rotating rods 31 which are symmetrically distributed front and back. The baffle rod 3 is fixed to the outside of the rotating rod 31, and the bottom of the baffle rod 3 away from the rotating frame 14 is fixed to the weight block 32.

[0046] like Fig.10 As shown, the tops of the guide frame 1 and the blocking rod 3 are both fixedly connected with rubber serrated pads.

[0047] When POGOPIN1101 falls from the rotating frame 14 to the guide frame 1 after being sorted, POGOPIN1101 will first contact the end of the baffle rod 3 close to the rotating frame 14, so that the end of the baffle rod 3 close to the rotating frame 14 will rotate downward. At this time, the other end of the baffle rod 3 will rotate upward and lift the weight block 32 to cushion the fall of POGOPIN1101. Then POGOPIN1101 rolls obliquely downward along the guide frame 1 until it falls into the packaging collection frame 12. During this period, the rubber serrated pads on the surface of the guide frame 1 and the baffle rod 3 will cushion and slow down the rolling of POGOPIN1101, and the baffle rod 3 will also rotate in the opposite direction to restore its original state under the action of POGOPIN1101 and the weight block 32.

[0048] like Fig.12 and Fig.13 As shown, it also includes a knocking mechanism for preventing the POGOPIN1101 from getting stuck. The knocking mechanism is arranged on the storage bucket 23. The knocking mechanism includes a vibration block 4, a pushing frame 41, an elastic member 42, a knocking block 43 and a mounting block 44. The vibration block 4 is fixedly connected to the lower front side of the storage bucket 23, and the mounting block 44 is fixedly connected to the lower front side of the storage bucket 23. The mounting block 44 is slidably connected to the pushing frame 41 inside the mounting block 44. The pushing frame 41 is squeezed and matched with the upper gear in the gear assembly 22. Two left and right elastic members 42 are fixedly connected between the pushing frame 41 and the mounting block 44. A knocking block 43 is fixedly connected to the top of the pushing frame 41, and the knocking block 43 is knocked and matched with the vibration block 4.

[0049] like Fig.13 As shown, the bottom of the ejector frame 41 is provided with a curved surface.

[0050] like Fig.13 As shown, a vibration ball 45 is also included, and the vibration ball 45 is movably connected to the left and right sides of the vibration block 4.

[0051] When multiple POGOPINs 1101 fall at the same time and want to enter the storage tank, multiple POGOPINs 1101 may be squeezed and stuck against each other. During this period, it is time-consuming and laborious to check and clear the POGOPINs 1101 by manpower, so a knocking mechanism is provided. When the driving motor 21 drives the material block 24 and the gear assembly 22 to rotate, the serrations of the upper gear in the gear assembly 22 will contact and squeeze the ejector frame 41 in turn, so that the ejector frame 41 drives the knocking block 43 to move upward and knock the vibration block 4, and the elastic member 42 is then When the saw teeth are compressed and separated from the ejector frame 41, the ejector frame 41 and the knocking block 43 will move downward and reset under the action of gravity and the elastic member 42, so that the vibration block 4, the storage bucket 23 and the POGOPIN1101 inside thereof will continue to vibrate and shift until the POGOPIN1101 at the bottom of the storage bucket 23 shifts to fit into the storage groove at the top of the upper material block 24 and falls into it. During this period, the vibration ball 45 will also continue to vibrate and roll randomly when the vibration block 4 is knocked, thereby intensifying the vibration of the vibration block 4 and the storage bucket 23.

[0052] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A POGOPIN elastic force detection device, comprising a material guide frame (1), a detection component (11) and a pushing component (1102), wherein the material guide frame (1) is fixedly connected to the detection component (11), the material guide frame (1) is fixedly connected to the pushing component (1102), the pushing component (1102) is fixedly connected to a pressure sensor, and the pressure sensor is electrically connected to the detection component (11), wherein: The invention also comprises a package collection frame (12), a servo motor (13), a rotating frame (14) and a fixing mechanism. The material guide frame (1) is fixedly connected to a pair of package collection frames (12). The material guide frame (1) is fixedly connected to a servo motor (13). The servo motor (13) is electrically connected to a detection component (11). The material guide frame (1) is rotatably connected to the rotating frame (14). The rotating frame (14) is used to place a POGOPIN (1101). The output end of the servo motor (13) is connected to the rotating frame (14). ), a fixing mechanism is provided on the rotating frame (14), wherein the fixing mechanism for clamping and fixing the POGOPIN (1101) comprises a top frame (15), a spring (16), a pressure block (17) and a guide path (18), the rotating frame (14) is slidably connected with a pair of top frames (15), a spring (16) is fixed between the top frame (15) and the rotating frame (14), a pair of pressure blocks (17) are slidably connected with the rotating frame (14), the top frame (15) and the pressure blocks (17) on the same side are connected 17) is pressed and matched, the top frame (15) is provided with a guide path (18), the pressing block (17) slides in the guide path (18) on the same side, and also includes a material discharge mechanism for orderly discharge of the POGOPIN (1101), the material discharge mechanism is arranged on the guide frame (1), the material discharge mechanism includes a mounting frame (2), a driving motor (21), a gear assembly (22), a storage bucket (23) and a material block (24), wherein the gear assembly (22) includes an upper gear and a lower gear, and The upper gear meshes with the lower gear, the material guide frame (1) is fixedly connected to a mounting frame (2), the mounting frame (2) is fixedly connected to a driving motor (21), the mounting frame (2) is rotatably connected to a pair of material blocks (24), the material blocks (24) are provided with circumferentially distributed material storage grooves, the paired material blocks (24) are respectively fixedly connected to an upper gear and a lower gear in a gear assembly (22), the output end of the driving motor (21) is fixedly connected to one side of the material blocks (24), and the mounting frame (2) is fixedly connected to a storage bucket (23).

2. The POGOPIN elastic force detection device according to claim 1 is characterized in that: The detection component (11) is fixedly connected to a display screen.

3. The POGOPIN elastic force detection device according to claim 2 is characterized in that: The pressing block (17) is made of rubber and has a curved surface.

4. The POGOPIN elastic force detection device according to claim 3 is characterized in that: The invention also comprises a buffer mechanism for buffering the falling of the POGOPIN (1101), the buffer mechanism being arranged on the material guide frame (1), the buffer mechanism comprising a blocking rod (3), a rotating rod (31) and a weight block (32), the material guide frame (1) being rotatably connected to a pair of rotating rods (31), the rotating rods (31) being fixedly connected to the blocking rods (3), and the blocking rods (3) being fixedly connected to the weight block (32).

5. The POGOPIN elastic force detection device according to claim 4 is characterized in that: The material guide frame (1) and the blocking rod (3) are both fixedly connected with a rubber serrated pad.

6. The POGOPIN elastic force detection device according to claim 5, characterized in that: The invention also comprises a knocking mechanism for preventing the POGO PIN (1101) from getting stuck. The knocking mechanism is arranged on the storage bucket (23). The knocking mechanism comprises a vibration block (4), a push frame (41), an elastic member (42), a knocking block (43) and a mounting block (44). The storage bucket (23) is fixedly connected with the vibration block (4), the storage bucket (23) is fixedly connected with the mounting block (44), the mounting block (44) is slidably connected with the push frame (41), the push frame (41) is pressed and matched with the upper gear in the gear assembly (22), a pair of elastic members (42) are fixedly connected between the push frame (41) and the mounting block (44), the push frame (41) is fixedly connected with the knocking block (43), and the knocking block (43) and the vibration block (4) are knocked and matched.

7. The POGO PIN elastic force detection device according to claim 6, characterized in that: The jacking frame (41) is provided with a curved surface.

8. The POGO PIN elastic force detection device according to claim 7, characterized in that: It also includes vibration balls (45), and the vibration block (4) is movably connected with a pair of vibration balls (45).

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