Automatic material head shearing mechanism and chip mounter material belt detaching and connecting equipment

Abstract

The invention provides an automatic material head shearing mechanism and chip mounter material belt detaching and connecting equipment, the automatic material head shearing mechanism comprises a first clamping mechanism, a first driving mechanism, a cutting mechanism and a material head stripping mechanism, the first driving mechanism drives the first clamping mechanism to move, and the first clamping mechanism can clamp or loosen a material disc and drive the material disc to rotate; the material head stripping mechanism comprises a base, a clamping assembly and a material head lifting assembly, the material head lifting assembly abuts against the outer ring of a material belt in the material disc when the material disc rotates so that the material head of the material belt can be lifted, the material head can be conveniently clamped by the clamping assembly, and meanwhile the first driving mechanism enables the first clamping mechanism to ascend so that the material belt can be pulled open; the cutting mechanism comprises a mounting base, a first cutting assembly and a conveying assembly, the conveying assembly receives and downwards conveys the material heads led out of the material disc, the first cutting assembly cuts the material heads after the material heads are conveyed to the preset position, the working efficiency of the material belt treatment process is effectively improved, and the working efficiency of the material belt treatment process is improved; and the vertical cutting mode is adopted, so that the space utilization rate is increased.

Description

Technical Field

[0001] The present invention relates to the field of surface mount technology (SMT), and in particular to an automatic material cutting mechanism and a material strip removal device for a chip mounter. Background Art

[0002] With the rapid development of the electronics manufacturing industry, the demand for miniaturization, high density and automated assembly of electronic components is increasing. SMT technology has become an indispensable part of modern electronics manufacturing because it can achieve high-efficiency and high-quality assembly of electronic products, and the automation level and operating efficiency of the placement machine have become important indicators to measure its performance. In the SMT patch process, the material tray of the feeding station can be used to feed the material tape to the placement machine so that the placement machine can complete the patch work. Usually, when the material tape in the old material tray of the feeding station is about to run out, a new material tray needs to be taken, and the tape head of the new material tray and the tape tail of the old material tray are connected through the tape disassembly machine.

[0003] When the current material stripping and splicing machine joins the material strips, it is necessary to lead out the material head on the new material tray for shearing. However, in the prior art, when the mechanism handles the leading and shearing of the material head, the mechanism structure is often more complicated, which not only occupies a large space but also has low overall work efficiency. Summary of the invention

[0004] The purpose of the present application is to provide an automatic cutting head mechanism to solve the problem of low efficiency in the material cutting process of the material tray in the prior art. In addition, the present application also provides a SMT machine material strip removal device including an automatic cutting head mechanism.

[0005] To achieve this goal, this application adopts the following technical solutions:

[0006] The present application provides an automatic shearing head mechanism, which includes a first clamping mechanism, a first driving mechanism, a cutting mechanism and a stripping head mechanism, wherein:

[0007] The driving end of the first driving mechanism is connected to the first clamping mechanism, and the first driving mechanism is configured to drive the first clamping mechanism to move horizontally and lift up and down, and the first clamping mechanism is configured to clamp or release the material tray and drive the material tray to rotate;

[0008] The stripping head mechanism includes a base, a clamping assembly and a lifting head assembly. The lifting head assembly is arranged on the base and located below the material tray. The lifting head assembly is configured to abut against the outer ring of the material belt in the material tray at the lifting head position to lift the material head of the material belt in cooperation with the rotation of the material tray; the clamping assembly is arranged on one side of the lifting head assembly. The clamping assembly is configured to clamp the material head after the material head of the material belt is lifted. The first driving mechanism drives the material tray at the lifting head position to rise so as to pull the material belt apart by a predetermined length.

[0009] The cutting mechanism is located on one side of the stripping head mechanism, and the cutting mechanism includes a mounting seat, a first cutting component and a conveying component. The conveying component is arranged on the mounting seat, and the conveying component is configured to receive and convey the material head led out from the material tray downward; the first cutting component is arranged on the mounting seat and located above the conveying component, and the first cutting component is configured to cut the material head after the conveying component conveys the material head to a preset length.

[0010] Optionally, the automatic material head cutting mechanism further includes a material head positioning mechanism, which includes a positioning component, a distance measuring component and a coil diameter measuring component, the distance measuring component is arranged below the material tray, and the distance measuring component is configured to detect the height of the material tray to control the first driving mechanism to drive the first clamping mechanism to descend to a certain height;

[0011] The coil diameter measuring component is configured to measure the outer diameter data of the material strip in the material tray, the positioning component is installed under the material tray, and the positioning component is configured to photograph and position the material head of the material tray to obtain the position information of the material head of the material tray. The first clamping mechanism controls the material head of the material tray to rotate to directly below the first clamping mechanism according to the position information of the material head and the outer diameter data of the material strip in the material tray.

[0012] Optionally, the automatic material cutting head mechanism also includes a frame, a second driving mechanism and a second clamping mechanism. The second driving mechanism is fixedly mounted on the frame, and the driving end of the second driving mechanism is connected to the second clamping mechanism. The second driving mechanism is configured to drive the second clamping mechanism to lift and move horizontally. The second clamping mechanism is located above the cutting mechanism. The second clamping mechanism is configured to clamp or release the cut material strip above the first cutting component and rotate it to a certain angle.

[0013] Optionally, the conveying assembly includes a first driving assembly, a second driving assembly, a conveying roller and a clamping roller, wherein:

[0014] The conveying roller is rotatably mounted on the mounting seat, the clamping roller is rotatably mounted on the mounting seat and can be close to or away from the conveying roller, the driving end of the first driving assembly is connected to the conveying roller, and the driving end of the second driving assembly is connected to the clamping roller;

[0015] The second driving assembly drives the clamping roller to move close to the conveying roller to clamp the material belt between the clamping roller and the conveying roller;

[0016] The first driving assembly drives the conveying roller to rotate so as to convey the material strip clamped by the clamping roller and the conveying roller downward.

[0017] Optionally, the cutting mechanism further includes a second cutting assembly and a waste box, the second cutting assembly is mounted on the mounting seat and is located below the conveying assembly, and the second cutting assembly is configured to perform cutting at the conveying head of the conveying assembly;

[0018] The top of the waste box is open and is located directly below the second cutting assembly, and the material heads cut by the second cutting assembly automatically fall into the waste box.

[0019] Optionally, the clamping assembly includes a third driving member, a third clamping member and a fourth clamping member, the third clamping member and the fourth clamping member are vertically arranged in parallel along the second direction, the driving end of the third driving member is connected to the third clamping member and / or the fourth clamping member, and the third driving member is configured to drive the third clamping member and the fourth clamping member to move closer to or away from each other along the second direction to clamp or release the material head of the material strip on the material tray.

[0020] Optionally, a clamping protrusion extending toward the fourth clamping member is provided at the top end of the third clamping member, a first inclined clamping surface is provided at the bottom surface of the clamping protrusion, a plurality of teeth are arranged in parallel on the first clamping surface, and an inclined second clamping surface is provided at the top end of the fourth clamping member, and the material head is clamped by the cooperation of the first clamping surface and the second clamping surface.

[0021] Optionally, at least one adsorption hole is provided on the second clamping surface, and an adsorption cavity is provided on the fourth clamping member. The first end of the adsorption cavity is connected to the adsorption hole, and the second end of the adsorption cavity is connected to the exhaust device. The exhaust device is configured to extract the air in the adsorption cavity to form a negative pressure for adsorbing and fixing the material head on the second clamping surface.

[0022] Optionally, the stripping head mechanism also includes a blowing assembly, which is arranged on a side of the clamping assembly away from the lifting head assembly. The blowing assembly is configured to blow air toward the material head of the material strip after the lifting head assembly lifts the material head of the material strip, so as to keep the material head in the lifted state.

[0023] A material strip removal device for a chip placement machine comprises any one of the above-mentioned automatic material cutting head mechanisms.

[0024] Compared with the prior art, the automatic shearing head mechanism proposed in this application has the following advantages:

[0025] 1) Through the cooperation of the first clamping mechanism, the first driving mechanism, the cutting mechanism and the stripping head mechanism, not only the material head on the material tray is automatically lifted and cut, thereby improving the working efficiency of the material strip processing process, but also a vertical shearing method of the material strip is adopted, which has a reasonable layout, small overall space occupation, and stable and reliable operation.

[0026] 2) By setting an air blowing assembly on one side of the clamping assembly, it is ensured that the material head remains in a lifted state before being clamped to prevent it from falling back, thereby improving the success rate of clamping the material head, further improving the lead-out stability of the material head, reducing manual adjustments, and ensuring the smoothness and reliability of production.

[0027] 3) By providing adsorption holes on the fourth clamping member, the material head is adsorbed and fixed on the fourth clamping member through the adsorption holes, thereby further improving the success rate of clamping the material head and the stability and reliability of clamping.

[0028] 4) Through the cooperation of the conveying roller and the clamping roller, the functions of automatic clamping and automatic conveying of the material belt are realized. When cutting the material head, the material belt is conveyed by the conveying roller and the clamping roller, which improves the cutting efficiency of the material head. At the same time, the material belt is clamped by the conveying roller and the clamping roller, which not only realizes the positioning of the material belt, but also can cooperate with the driving part to implement material movement on the material belt.

[0029] 5) Through the cooperation of the material head positioning component, the distance measuring component and the roll diameter measuring component, the material strip is ensured to reach the preset measurement position to obtain the position and outer diameter information of the material head of the material strip, which facilitates the rotation of the material head to the bottom of the first clamping mechanism, improves the accuracy of the material head positioning, and ensures that the clamping component accurately clamps the material head. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate and understand the technical solutions in the embodiments of the present application, the following briefly introduces the background technology of the present application and the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present application and these drawings without paying any creative work.

[0031] Figure 1 It is a schematic diagram of the three-dimensional structure of the automatic shearing head mechanism provided in the embodiment of the present application;

[0032] Figure 2 It is a schematic diagram of the three-dimensional structure of the stripping head mechanism of the automatic shearing head mechanism provided in the embodiment of the present application;

[0033] Figure 3 It is a front view of the stripping head mechanism of the automatic shearing head mechanism provided in the embodiment of the present application;

[0034] Figure 4 It is a side view of a stripping head mechanism of an automatic shearing head mechanism provided in an embodiment of the present application;

[0035] Figure 5 It is a schematic diagram of the three-dimensional structure of the third clamping member and the fourth clamping member of the automatic shearing head mechanism provided in an embodiment of the present application;

[0036] Figure 6 yes Figure 5 The enlarged schematic diagram of point A in the middle;

[0037] Figure 7 It is a schematic diagram of the three-dimensional structure of the cutting mechanism of the automatic shearing head mechanism provided in the embodiment of the present application;

[0038] Figure 8 is a front view of a cutting mechanism of an automatic shearing head mechanism provided in an embodiment of the present application;

[0039] Fig. 9 It is a three-dimensional structural schematic diagram of the material head positioning mechanism of the automatic material head cutting mechanism provided in the embodiment of the present application. DETAILED DESCRIPTION

[0040] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are given in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thoroughly understood. It should be noted that when a component is referred to as "fixed to" another component, it can be directly on the other component or there can also be a central component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for illustrative purposes and are not intended to be the only implementation method. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by technicians in the technical field of the present application. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0041] See also Figures 1 to 9 As shown, an automatic shearing head mechanism provided in an embodiment of the present application includes a first clamping mechanism 10, a first driving mechanism 20, a cutting mechanism 30 and a stripping head mechanism 40, wherein:

[0042] The driving end of the first driving mechanism 20 is connected to the first clamping mechanism 10. The first driving mechanism 20 is configured to drive the first clamping mechanism 10 to move horizontally and lift up and down. The first clamping mechanism 10 is configured to clamp or release the material tray 50 and drive the material tray 50 to rotate.

[0043] The stripping head mechanism 40 includes a base 41, a clamping assembly 42 and a lifting head assembly 43. The lifting head assembly 43 is arranged on the base 41 and is located below the material tray 50. The lifting head assembly 43 is configured to abut against the outer ring of the material belt in the material tray 50 at the lifting head position to cooperate with the rotation of the material tray 50 to lift the material head of the material belt; the clamping assembly 42 is arranged on one side of the lifting head assembly 43. The clamping assembly 42 is configured to clamp the material head after the material head of the material belt is lifted. The first driving mechanism 20 drives the material tray 50 at the lifting head position to rise to pull the material belt apart by a predetermined length;

[0044] The cutting mechanism 30 is located on one side of the stripping head mechanism 40, and the cutting mechanism 30 includes a mounting seat 31, a first cutting component 32 and a conveying component 33. The conveying component 33 is arranged on the mounting seat 31, and the conveying component 33 is configured to receive and convey the head of material led out from the material tray 50 downward; the first cutting component 32 is arranged on the mounting seat 31 and is located above the conveying component 33, and the first cutting component 32 is configured to cut the head of material after the conveying component 33 conveys the head of material to a preset length.

[0045] Specifically, the first driving mechanism 20 is configured as a three-axis driving module that can drive the first clamping mechanism 10 to move along the X-axis, the Y-axis and the Z-axis.

[0046] Specifically, the first clamping mechanism 10 includes a first driving member 11, a second driving member 12, a first clamping member 13 and a second clamping member 14. The first clamping member 13 and the second clamping member 14 are arranged along a first direction ( Figure 1 The first driving member 11 is vertically arranged in parallel along the X direction, the driving end of the first driving member 11 is connected to the first clamping member 13 and / or the second clamping member 14, and the first driving member 11 is configured to drive the first clamping member 13 and the second clamping member 14 to move closer to or away from each other along the first direction to clamp or release the material head of the material belt on the material tray 50; the driving end of the second driving member 12 is connected to the material tray 50, and the second driving member is configured to drive the material tray 50 to rotate.

[0047] Specifically, the cutting mechanism 30 also includes a third driving component 34, a driving end of the third driving component 34 is connected to the conveying component 33, and the third driving component 34 is configured to drive the conveying component 33 to move closer to or away from the pulled material belt, so as to clamp the material belt and move the material belt to the cutting range of the first cutting component 32, so as to facilitate cutting of the material head.

[0048] Specifically, the material lifting head assembly 43 includes a material brush, and the brush head of the material brush abuts against the outer circle of the material belt in the material tray 50.

[0049] Through the cooperation of the first clamping mechanism 10, the first driving mechanism 20, the cutting mechanism 30 and the stripping head mechanism 40, not only the material head on the material tray 50 is automatically lifted and cut, thereby improving the work efficiency of the material strip processing process, but also a method of vertically shearing the material strip is adopted, with a reasonable layout, small overall space occupation, and stable and reliable operation.

[0050] In one embodiment, the automatic material head cutting mechanism further includes a material head positioning mechanism 60, which includes a positioning component 61, a distance measuring component 62 and a coil diameter measuring component 63. The distance measuring component 62 is arranged below the material tray 50, and the distance measuring component 62 is configured to detect the height of the material tray 50 to control the first driving mechanism 20 to drive the first clamping mechanism 10 to descend.

[0051] The coil diameter measuring component 63 is configured to measure the outer diameter data of the material strip in the material tray 50. The positioning component 61 is installed below the material tray 50. The positioning component 61 is configured to photograph and position the material head of the material tray 50 to obtain the position information of the material head of the material tray 50. The first clamping mechanism 10 controls the material head of the material tray 50 to rotate to directly below the first clamping mechanism 10 according to the position information of the material head and the outer diameter data of the material strip in the material tray 50.

[0052] Specifically, the positioning component 61 is configured as a positioning camera, and the positioning camera is adapted to be equipped with a light source installed on the material head positioning mechanism 60, and the light source is used for supplementary lighting for taking photos.

[0053] Specifically, the roll diameter measuring assembly 63 includes a Figure 1 Two optical fiber sensors 630 are spaced apart in the Y direction, and the material tray 50 is located between the two optical fiber sensors 630 to measure the roll diameter.

[0054] Specifically, the distance measuring component 62 is configured as a displacement sensor.

[0055] Through the cooperation of the material head positioning component 61, the distance measuring component 62 and the winding diameter measuring component 63, the material strip is ensured to reach the preset measurement position to obtain the position and outer diameter information of the material head of the material strip, so as to facilitate the rotation of the material head to the bottom of the first clamping mechanism 10, thereby improving the accuracy of the material head positioning and ensuring the accurate clamping of the material head by the clamping component 42.

[0056] In one embodiment, the automatic cutting head mechanism also includes a frame 35, a second driving mechanism 36 and a second clamping mechanism 37. The second driving mechanism 36 is fixedly mounted on the frame 35. The driving end of the second driving mechanism 36 is connected to the second clamping mechanism 37. The second driving mechanism 36 is configured to drive the second clamping mechanism 37 to rise, fall and move laterally. The second clamping mechanism 37 is located above the cutting mechanism 30. The second clamping mechanism 37 is configured to clamp or release the cut material strip above the first cutting component 32 and rotate it to a certain angle.

[0057] Specifically, the second clamping mechanism 37 is configured as an electric rotating clamping jaw.

[0058] Specifically, the second clamping mechanism 37 clamps the material strip and then rotates to a certain angle to facilitate conveying the material strip to the material receiving platform for receiving the material.

[0059] Through the cooperation of the second driving mechanism 36 and the second clamping mechanism 37, the material strip pulled out from the top of the cutting mechanism 30 is stably clamped, preventing the material strip from deviating from the preset position after cutting, thereby causing damage to the equipment and the material strip itself.

[0060] In one embodiment, the conveying assembly 33 includes a first driving assembly 330, a second driving assembly 331, a conveying roller 332 and a clamping roller 333, wherein:

[0061] The conveying roller 332 is rotatably mounted on the mounting seat 31, the clamping roller 333 is rotatably mounted on the mounting seat 31 and can be close to or away from the conveying roller 332, the driving end of the first driving assembly 330 is connected to the conveying roller 332, and the driving end of the second driving assembly 331 is connected to the clamping roller 333;

[0062] The second driving assembly 331 drives the clamping roller 333 to move close to the conveying roller 332 to clamp the material strip between the clamping roller 333 and the conveying roller 332;

[0063] The first driving assembly 330 drives the conveying roller 332 to rotate so as to convey the material strip clamped by the clamping roller 333 and the conveying roller 332 downward.

[0064] Through the cooperation of the conveying roller 332 and the clamping roller 333, the functions of automatic clamping and automatic conveying of the material strip are realized. When cutting the material head, the material strip is conveyed by the conveying roller 332 and the clamping roller 333, which improves the cutting efficiency of the material head. At the same time, the material strip is clamped by the conveying roller 332 and the clamping roller 333, which not only realizes the positioning of the material strip, but also can cooperate with the driving component to implement material movement on the material strip.

[0065] In one embodiment, the cutting mechanism 30 further includes a second cutting assembly 38 and a waste box 39. The second cutting assembly 38 is mounted on the mounting seat 31 and is located below the conveying assembly 33. The second cutting assembly 38 is configured to perform cutting at the conveying head of the conveying assembly 33.

[0066] The top of the waste box 39 is open and is located directly below the second cutting assembly 38 , and the material heads cut by the second cutting assembly 38 automatically fall into the waste box 39 .

[0067] Specifically, the first cutting assembly 32 and the second cutting assembly 38 are both horizontally arranged electric scissors or pneumatic scissors.

[0068] By installing the second cutting assembly 38 below the conveying assembly 33, the cut material head is cut to prevent the material strip from being too long to accurately enter the waste box 39.

[0069] In one embodiment, the clamping assembly 42 includes a third driving member 420, a third clamping member 421 and a fourth clamping member 422. The third clamping member 421 and the fourth clamping member 422 are vertically arranged in parallel along the second direction. The driving end of the third driving member 420 is connected to the third clamping member 421 and / or the fourth clamping member 422. The third driving member 420 is configured to drive the third clamping member 421 and the fourth clamping member 422 to move closer to or away from each other along the first direction to clamp or release the material head of the material belt on the material tray 50.

[0070] Through the cooperation of the third driving member 420, the third clamping member 421 and the fourth clamping member 422, not only is it ensured that the head of the material strip can be firmly clamped after being lifted and can be smoothly released when needed, thereby improving the reliability and controllability of the operation, but also the clamping and releasing process can be automatically completed in continuous production, significantly improving production efficiency.

[0071] In one embodiment, a clamping protrusion 423 extending toward the fourth clamping member 422 is provided at the top end of the third clamping member 421, and a first inclined clamping surface 4230 is provided at the bottom surface of the clamping protrusion 423. A plurality of teeth are arranged in parallel on the first clamping surface 4230. An inclined second clamping surface 4220 is provided at the top end of the fourth clamping member 422. The material head is clamped by the cooperation of the first clamping surface 4230 and the second clamping surface 4220.

[0072] Through the cooperation between the first clamping surface 4230 and the second clamping surface 4220, it is convenient to clamp the material strip head more tightly, ensure that the position of the lead-out material strip head is fixed and prevented from loosening, thereby improving the stability of the working process of the mechanism and the production efficiency.

[0073] In one embodiment, at least one adsorption hole 4221 is provided on the second clamping surface 4220, and an adsorption cavity is provided on the fourth clamping member 422. The first end of the adsorption cavity is connected to the adsorption hole 4221, and the second end of the adsorption cavity is connected to the exhaust device. The exhaust device is configured to extract the air in the adsorption cavity to form a negative pressure for adsorbing and fixing the material head on the second clamping surface 4220.

[0074] Through the cooperation of the adsorption hole 4221, the adsorption chamber and the exhaust device, the material head of the material strip is stably adsorbed in the clamping position, providing double fixing protection, ensuring the stability and safety of the lead-out process, and further improving production efficiency.

[0075] In one embodiment, the stripping head mechanism 40 also includes a blowing assembly 44, which is arranged on a side of the clamping assembly 42 away from the lifting head assembly 43. The blowing assembly 44 is configured to blow air toward the material head of the material strip after the lifting head assembly 43 lifts the material head of the material strip, so as to keep the material head in the lifted state.

[0076] Specifically, the blowing assembly 44 includes a blowing nozzle 440, an air pipe and an external air source. The blowing port of the blowing nozzle 440 is set toward the downward lifting head assembly 43. The setting height of the blowing nozzle 440 is the same as the setting height of the lifting head assembly 43. The blowing nozzle 440 is connected to the first end of the air pipe, and the second end of the air pipe is connected to the external air source. The external air source supplies high-pressure gas into the air pipe and discharges it through the blowing port of the blowing nozzle 440.

[0077] By providing a blowing assembly 44 on one side of the clamping assembly 42, it is ensured that the material head remains in a lifted state before being clamped to prevent it from falling back or falling off, further improving the lead-out stability of the material head, reducing manual adjustments, and ensuring smoothness and reliability of production.

[0078] A material strip removal device for a chip placement machine comprises any one of the above-mentioned automatic material cutting head mechanisms.

[0079] The above embodiments are only to illustrate the basic principles and characteristics of the present application. The present application is not limited by the above examples. Without departing from the spirit and scope of the present application, the present application may be subject to various changes and modifications, which are within the scope of the present application to be protected. The scope of protection claimed in the present application is defined by the attached claims and their equivalents.

Claims

1. An automatic shearing head mechanism, characterized in that: The automatic shearing head mechanism comprises a first clamping mechanism, a first driving mechanism, a cutting mechanism and a stripping head mechanism, wherein: The driving end of the first driving mechanism is connected to the first clamping mechanism, and the first driving mechanism is configured to drive the first clamping mechanism to move horizontally and lift up and down, and the first clamping mechanism is configured to clamp or release the material tray and drive the material tray to rotate; The stripping head mechanism includes a base, a clamping assembly and a lifting head assembly, wherein the lifting head assembly is arranged on the base and below the material tray, and the lifting head assembly is configured to abut against the outer ring of the material belt in the material tray at the lifting head position to cooperate with the rotation of the material tray to lift the material head of the material belt; the clamping assembly is arranged on one side of the lifting head assembly, and the clamping assembly is configured to clamp the material head of the material belt after the material head of the material belt is lifted, and the first driving mechanism drives the material tray at the lifting head position to rise so as to pull the material belt apart by a predetermined length; The cutting mechanism is located on one side of the stripping head mechanism, and the cutting mechanism includes a mounting seat, a first cutting component and a conveying component. The conveying component is arranged on the mounting seat, and the conveying component is configured to receive and convey the material head led out from the material tray downward; the first cutting component is arranged on the mounting seat and located above the conveying component, and the first cutting component is configured to cut the material head after the conveying component conveys the material head to a preset length.

2. The automatic shearing head mechanism according to claim 1, characterized in that: The automatic material head cutting mechanism further includes a material head positioning mechanism, which includes a positioning component, a distance measuring component and a coil diameter measuring component, wherein the distance measuring component is arranged below the material tray, and the distance measuring component is configured to detect the height of the material tray to control the descending height of the first clamping mechanism driven by the first driving mechanism; The coil diameter measuring component is configured to measure the outer diameter data of the material strip in the material tray, the positioning component is installed below the material tray, and the positioning component is configured to photograph and position the material head of the material tray to obtain the position information of the material head of the material tray, and the first clamping mechanism controls the material head of the material tray to rotate to directly below the first clamping mechanism according to the position information of the material head and the outer diameter data of the material strip in the material tray.

3. The automatic shearing head mechanism according to claim 1, characterized in that: The automatic material cutting head mechanism also includes a frame, a second driving mechanism and a second clamping mechanism, the second driving mechanism is fixedly mounted on the frame, the driving end of the second driving mechanism is connected to the second clamping mechanism, the second driving mechanism is configured to drive the second clamping mechanism to rise and fall and move laterally, the second clamping mechanism is located above the cutting mechanism, and the second clamping mechanism is configured to clamp or release the material strip being cut above the first cutting component and rotate to a certain angle.

4. The automatic shearing head mechanism according to claim 1, characterized in that: The conveying assembly comprises a first driving assembly, a second driving assembly, a conveying roller and a clamping roller, wherein: The conveying roller is rotatably mounted on the mounting seat, the clamping roller is rotatably mounted on the mounting seat and can be moved closer to or farther from the conveying roller, the driving end of the first driving assembly is connected to the conveying roller, and the driving end of the second driving assembly is connected to the clamping roller; The second driving assembly drives the clamping roller to move close to the conveying roller to clamp the material belt between the clamping roller and the conveying roller; The first driving assembly drives the conveying roller to rotate so as to convey the material strip clamped by the clamping roller and the conveying roller downward.

5. The automatic shearing head mechanism according to claim 1 is characterized in that: The cutting mechanism further comprises a second cutting assembly and a waste box, wherein the second cutting assembly is mounted on the mounting seat and is located below the conveying assembly, and the second cutting assembly is configured to carry out cutting when the conveying assembly conveys the material head; The top of the waste box is open and is located directly below the second cutting assembly, and the material heads cut by the second cutting assembly automatically fall into the waste box.

6. The automatic shearing head mechanism according to claim 1, characterized in that: The clamping assembly includes a third driving member, a third clamping member and a fourth clamping member, the third clamping member and the fourth clamping member are vertically arranged in parallel along the second direction, the driving end of the third driving member is connected to the third clamping member and / or the fourth clamping member, and the third driving member is configured to drive the third clamping member and the fourth clamping member to move closer to or away from each other along the second direction to clamp or release the material head of the material belt on the material tray.

7. The automatic shearing head mechanism according to claim 6, characterized in that: The top end of the third clamping member is provided with a clamping protrusion extending toward the fourth clamping member, the bottom surface of the clamping protrusion is provided with an inclined first clamping surface, a plurality of teeth are arranged in parallel on the first clamping surface, and the top end of the fourth clamping member is provided with an inclined second clamping surface, and the material head is clamped by the cooperation of the first clamping surface and the second clamping surface.

8. The automatic shearing head mechanism according to claim 7, characterized in that: At least one adsorption hole is provided on the second clamping surface, and an adsorption cavity is provided on the fourth clamping member. The first end of the adsorption cavity is communicated with the adsorption hole, and the second end of the adsorption cavity is connected to an exhaust device. The exhaust device is configured to extract air in the adsorption cavity to form a negative pressure for adsorbing and fixing the material head on the second clamping surface.

9. The automatic shearing head mechanism according to claim 1, characterized in that: The stripping head mechanism also includes an air blowing assembly, which is arranged on a side of the clamping assembly away from the lifting head assembly. The air blowing assembly is configured to blow air toward the material head of the material strip after the lifting head assembly lifts the material head of the material strip, so as to keep the material head in the lifted state.

10. A device for disassembling tapes of a chip mounter, characterized in that: The SMT machine tape unsplicing device comprises the automatic cutting head mechanism as described in any one of claims 1-9.

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