Cutting device and its application in material receiving machine

Abstract

This invention discloses a cutting device and its application in a receiving machine. The cutting device includes a base and a platform assembly, a cutting blade assembly, and a drive assembly. The platform assembly includes a limiting platform and a cover plate; the cutting blade assembly includes cutting blades; and the drive assembly includes a power motor and a rotating spindle. Multiple transmission mechanisms are driven onto the rotating spindle and are respectively connected to the platform assembly and the cutting blade assembly to drive them to generate their respective movements, jointly completing a series of cutting actions. Through the above-described configuration, the cooperation of the platform assembly and the cutting blade assembly allows for the smooth cutting of the material strip placed on the material carrier channel. Furthermore, since each action is driven by the same drive assembly, the overall structure is simple, highly integrated, and does not require complex control programs. High-precision synchronization or differentiation can be achieved through the cooperation between the structures, meeting the requirements of the coordination sequence between multiple processes.

Description

Technical Field

[0001] The invention relates to the technical field of SMT surface mounting, in particular to a material cutting device and application thereof on a material receiving machine. Background Art

[0002] SMT refers to surface mount technology, a new generation of electronic assembly technology. It compresses traditional electronic components into devices that are only a few tenths of the volume, thereby achieving high density, high reliability, miniaturization, low cost, and automated production of electronic product assembly.

[0003] Splicing is an important process in surface mounting technology. Its main function is to join two strips to form a continuous strip. The two strips can be directly bonded, or an extra small strip can be pressed and fastened to the two strips at both ends. This can extend the feeding time of the strip, and many small strip segments can be joined to form a new strip for continued use, reducing costs.

[0004] However, there is a necessary step before joining the materials, that is, to cut the ends of the two material strips to be joined by a cutting device, cut off the blank section at the end of each section of the material strip, and also ensure that the two sections of the material strip can be relatively flush, so that when the tapes are subsequently joined, whether it is bonding or buckling, a qualified new tape can be formed.

[0005] When the cutting device in the prior art performs material strip shearing, the overall structure is complex and the control process is complicated, resulting in high equipment cost and low applicability. Summary of the invention

[0006] In order to solve the defects in the prior art, the present invention proposes a cutting device and its application in a material receiving machine.

[0007] The technical solution adopted by the present invention is that the cutting device comprises a base body and:

[0008] A carrier assembly, comprising a position-limiting carrier and a cover plate, wherein a carrier flow channel is formed on one side of the position-limiting carrier, and a first relative stroke is provided between the cover plate and the position-limiting carrier, and in the first relative stroke, the cover plate covers or opens a part or all of an upper opening of the carrier flow channel;

[0009] A cutting blade assembly, comprising a cutting blade, wherein the cutting blade and the carrier flow channel have a second relative stroke, and in the second relative stroke, the cutting blade enters or exits the carrier flow channel;

[0010] The driving assembly includes a power motor and a rotating spindle, wherein the power motor is power-connected to the rotating spindle, and the rotating spindle is power-connected to a first transmission mechanism and a second transmission mechanism, wherein the first transmission mechanism is power-connected to the limiting platform and / or the cover plate to form the first relative stroke; and the second transmission mechanism is power-connected to the cutting blade and / or the platform assembly to form the second relative stroke.

[0011] Preferably, the cover plate is slidably connected to the base along the direction of the first relative stroke, and a first limit groove perpendicular to the direction of the first relative stroke is also opened on the cover plate. The first transmission mechanism includes a first driving wheel and a first driven wheel in meshing transmission, the first driving wheel is coaxially fixed with the rotating main shaft, and the first driven wheel is fixed with an eccentric first limit device, and the first limit device is slidably penetrated into the first limit groove.

[0012] Preferably, the cutter assembly also includes a sliding seat slidably connected to the base along the direction of the second relative stroke, the cutting blade is arranged on the sliding seat, and the sliding seat is also provided with a second limiting groove perpendicular to the direction of the second relative stroke, the second transmission mechanism includes a second driving wheel and a second driven wheel of meshing transmission, the second driving wheel is coaxially fixed with the rotating main shaft, and the second driven wheel is fixed with an eccentric second limiting device, and the second limiting device is slidably penetrated into the second limiting groove.

[0013] Preferably, the first driving wheel is a sector gear, the first driven wheel is a full gear, and the teeth of the sector gear mesh with the teeth of the full gear for transmission; the second driving wheel is a sector gear, the second driven wheel is a full gear, and the teeth of the sector gear mesh with the teeth of the full gear for transmission;

[0014] Furthermore, the teeth of the first driving wheel and the teeth of the second driving wheel are overlapped or staggered in the axial direction of the rotating main shaft.

[0015] Preferably, a support plate is fixedly connected to the base, the support plate is directly opposite to the limiting platform and the upper end surface is flush, a gap is left between the support plate and the limiting platform to form the carrier flow channel, and a platform driving component is also provided on the base, and the platform driving component drives the limiting platform and / or the support plate to move.

[0016] Preferably, a blanking notch is opened at one end of the support plate, one side of the blanking notch is connected to the carrier flow channel, a support block is rotatably connected in the blanking notch, one end of the support block extends along the carrier flow channel to the second relative stroke of the cutting blade, and the other end extends in the opposite direction to the end of the carrier flow channel.

[0017] Preferably, the rotating main shaft is also transmission-connected with a third transmission mechanism, and the third transmission mechanism includes a first cam coaxially fixed with the rotating main shaft, and a first connecting rod rotationally connected to the base, the first cam is provided with a first guiding arc surface and a second guiding arc surface, the radii of the circles on which the first guiding arc surface and the second guiding arc surface are located are different, and the two circles are smoothly connected through a transition section, one end of the second connecting rod is rotationally connected to the support block, and the other end is tightly fitted against the first guiding arc surface or the second guiding arc surface.

[0018] Preferably, the limiting carrier is provided with an avoidance groove, one end of which is opened and communicated with the carrier flow channel, and the avoidance groove is located on the movement path of the second relative stroke of the cutting blade.

[0019] Preferably, the cutting device further comprises a fixed blade, which is located directly below the carrier flow channel and on the movement path of the second relative stroke of the cutting blade, and the bottom of the material to be processed placed on the carrier flow channel is supported on the fixed blade during cutting.

[0020] Preferably, a slidably connected receiving top plate is provided on the base, the fixed blade is fixedly mounted on the end of the receiving top plate, and the rotating main shaft is also transmission-connected with a fourth transmission mechanism, the fourth transmission mechanism includes a second cam coaxially fixed with the rotating main shaft, and a second connecting rod rotatably connected to the base, the second cam is provided with a first arc groove and a second arc groove, the radii of the first arc groove and the second arc groove are different and are smoothly connected through a transition section, one end of the second connecting rod is rotationally connected to the receiving top plate, and the other end is limitedly fitted in the first arc groove or the second arc groove.

[0021] Preferably, the first cam and the second cam are two cams coaxially arranged; or, the first cam and the second cam are the same cam, and the first arc groove and the second arc groove are opened on the same side of the cam, and the first guide arc surface and the second guide arc surface are arranged on the peripheral side surface of the cam.

[0022] The present invention also proposes an application of the above-mentioned cutting device on a material receiving machine.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. Through the cooperation of the carrier assembly and the cutter assembly, the material strip placed on the carrier flow channel can be cut smoothly. Moreover, since each action is driven by the same drive assembly, the overall structure is simple, the integration is high, and no complex control program is required. Through the cooperation relationship between the structures, high-precision synchronization or difference can be achieved to meet the cooperation order requirements between multiple processes;

[0025] 2. The cutting blade is circular and can be driven by a motor or cooperate with a fixed blade. There are various ways to cut the material strip, which can achieve different cutting effects. At the same time, since the blade completes the cutting during the walking and rotating process, the cutting wear of the entire blade is relatively uniform, which extends the service life;

[0026] 3. When the material strip is cut, the limiting structures such as the limiting platform, the supporting plate, and the cover plate can fully ensure the stability of the material strip, so the cutting accuracy is guaranteed and the cutting quality can be improved;

[0027] 4. As the size of the material strip changes, the position of the limit platform can also be changed accordingly, so that the width of the carrier flow channel can be adjusted and changed. At the same time, due to the setting of the avoidance groove, the cutting blade will not interfere with the position of the limit platform when cutting. Therefore, the cutting device can adapt to material strips of different widths and has a wider range of adaptability;

[0028] 5. Due to the setting of the support block, when it rotates downward, the waste gap on the support plate is opened. At this time, the cut waste strip can be directly discharged from the gap, achieving the effect of automatic waste discharge, eliminating the step of manual picking, and more automated;

[0029] 6. The fixed blade can support the bottom of the material belt and cooperate with the cutting blade, which can not only ensure a good cutting effect, but also reduce the stress deformation of the material belt during the cutting process and maintain the good shape of the material belt. In addition, due to the setting of the fourth transmission mechanism, the fixed blade can be raised and lowered and can be avoided in time to match the shape and size of the material belt and reduce interference. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention is described in detail below with reference to the embodiments and accompanying drawings, wherein:

[0031] Figure 1 is a schematic diagram of the overall structure of an embodiment;

[0032] Figure 2 It is an isometric view of the limit stage;

[0033] Figure 3 It is an isometric view of the receiving top plate;

[0034] Figure 4 It is a structural schematic diagram of a base body provided with a supporting plate portion;

[0035] Figure 5 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0036] Figure 6 yes Figure 5 The front view behind the power motor is omitted;

[0037] Figure 7 yes Figure 5 The isometric view after the power motor is omitted;

[0038] Figure 8 yes Figure 5 The bottom-up isometric view after the power motor is omitted;

[0039] Fig. 9 It is a schematic diagram of the connection structure of the rotating main shaft, the driving wheel and the cam;

[0040] Fig.10 yes Fig. 9 Front view from the cam side.

[0041] 1. Cutting blade; 2. Sliding seat; 3. Position limiting platform; 4. Material belt; 5. Avoidance groove; 6. Receiving top plate; 61. Fourth transmission mechanism; 7. Cutting groove; 8. Fixed blade; 9. Base; 10. Mounting plate; 11. Cover plate; 12. Step; 13. Cutting groove; 14. Support plate; 15. Blanking notch; 16. Support block; 161. Third transmission mechanism; 17. First transmission mechanism; 18. Second transmission mechanism; 21 , power motor; 22, rotating main shaft; 231, first driving wheel; 232, first driven wheel; 233, second driving wheel; 234, second driven wheel; 241, first limiting groove; 25, first cam; 251, first arc groove; 252, second arc groove; 253, first guiding arc surface; 254, second guiding arc surface; 271, first limiting device; 28, transition section; 29, first connecting rod; 30, second connecting rod. DETAILED DESCRIPTION

[0042] The present invention mainly provides a cutting device, which is mainly used for cutting products with strip structures such as materials to be processed, such as the processing process of material strips in surface mounting technology. For the convenience of explanation, the materials to be processed in the following embodiments are all taken as material strips, and in actual production, they can be other products that need to be cut.

[0043] Embodiment 1, cutting device, such as Figure 1 As shown, it includes a base 9 and the following main components arranged on the base 9:

[0044] The platform assembly includes a limiting platform 3 and a cover plate 11, wherein a carrier flow channel is formed on one side of the limiting platform 3, and there is a first relative stroke between the cover plate 11 and the limiting platform 3, and in the first relative stroke, the cover plate 11 covers or opens part or all of the upper opening of the carrier flow channel;

[0045] A cutting blade assembly, comprising a cutting blade 1, wherein the cutting blade 1 has a second relative stroke with the carrier flow channel, and in the second relative stroke, the cutting blade 1 enters or exits the carrier flow channel;

[0046] Drive components such as Figure 5 As shown, it includes a power motor 21 and a rotating spindle 22, the power motor 21 and the rotating spindle 22 are connected to each other through a synchronous belt, the rotating spindle 22 is connected to a first transmission mechanism 17 and a second transmission mechanism 18, the first transmission mechanism 17 is connected to the limiting platform 3 and / or the cover plate 11 to form the first relative stroke; the second transmission mechanism 18 is connected to the cutting blade 1 and / or the platform assembly to form the second relative stroke.

[0047] In this embodiment, the material belt 4 enters the carrier flow channel from one end, and then the cover plate 11 slides to press and limit the material belt, and then cooperates with the cutting blade 1 to slide and cut, so as to achieve the effect of automatically cutting the material belt. Moreover, the driving sources of the cover plate 11 and the cutting blade 1 are the same rotating spindle 22, which makes the cooperation smoother and the structure more compact.

[0048] In one embodiment, Figure 1-4 As shown, a horizontally fixed mounting plate 10 is fixedly mounted on the base 9, and a supporting plate 14 is detachably connected to one side of the mounting plate 10 by bolts. The limiting platform 3 is mounted on the base 9 and is located on one side of the supporting plate 14. The side edge of the limiting platform 3 is directly opposite to the side edge of the supporting plate 14, and a carrier flow channel for placing the material belt is reserved between the two. That is, after the material belt enters from one side of the carrier flow channel, the two sides of the material belt are overlapped on the limiting platform 3 and the supporting plate 14 respectively, so as to carry out subsequent conveying, cutting and bonding processes.

[0049] In one embodiment, Figure 1-4 As shown, a carrier driving member is provided on the base 9, and the carrier driving member drives the limit carrier 3 to approach or move away from the mounting plate 10, so as to achieve the effect of adjusting the width of the carrier flow channel, so that the device can be suitable for material strips 4 of various widths. Specifically, the carrier driving member can be one of a cylinder, an oil cylinder, a linear motor or a lead screw pair, etc., and correspondingly, a slide rail is provided on the base 9, and the limit carrier 3 slides on the slide rail to form a sliding fit. In another embodiment, the carrier driving member can also be fixed on the limit carrier 3, and it is used to drive the base 9 or the supporting plate 14 to slide, which can also achieve the effect of adjusting the width of the carrier flow channel.

[0050] In one embodiment, Figure 1-4As shown, a relief groove 5 is provided on the limiting platform 3, one end of which is open and communicated with the carrier flow channel, and the relief groove 5 is located on the movement path of the second relative stroke of the cutting blade 1. Due to the provision of the relief groove 5, the cutting blade 1 can move deeper along the second relative stroke when cutting the material strip 4, thereby ensuring that the material strip 4 supported on the limiting platform 3 is cut as much as possible, and avoiding interference between the cutting blade 1 and the limiting platform 3.

[0051] In one embodiment, Figure 5-10 As shown, the cover plate 11 is slidably connected to the mounting plate 10 along the direction of the first relative stroke, and a first limiting groove 241 perpendicular to the direction of the first relative stroke is also opened on the cover plate 11. The first transmission mechanism 17 includes a first driving wheel and a first driven wheel of meshing transmission. The first driving wheel is coaxially fixed with the rotating main shaft 22, and the first driven wheel is fixed with an eccentric first limiting device 271, and the first limiting device 271 is slidably penetrated into the first limiting groove 241.

[0052] In this embodiment, if Figure 1 As shown, the direction of the first relative stroke is the X-axis direction, and the direction of the first limit groove 241 is the Z-axis direction. The power motor 21 is fixed on the base 9. Figure 5-10 As shown, the rotating main shaft 22 is connected to the power motor and arranged along the Y axis. Since the first driving wheel is coaxially fixed with the rotating main shaft 22, and when the first driving wheel rotates, it drives the first driven wheel to rotate in the same vertical plane, and the first limiting device 271 is eccentrically arranged on the side of the first driven wheel, the first limiting device 271 rotates in the vertical plane. Since the first limiting device 271 is slidably inserted in the vertically opened first limiting groove 241, that is, the first limiting device 271 and the cover plate 11 will only have a relative movement in the vertical direction, and in the horizontal direction, the first limiting device 271 will drive the entire cover plate 11 to move synchronously, thereby realizing the horizontal reciprocating motion of the cover plate 11 under the drive of the rotating main shaft 22, that is, forming a first relative stroke.

[0053] In another embodiment, the limiting platform 3 and the mounting plate 10, or the limiting platform 3 and the supporting plate 14, are fixed on the same movable base, and the first limiting groove 241 is opened on the base, and the first transmission mechanism 17 cooperates with the first limiting groove 241, so that when the cover plate 11 is fixed, the first transmission mechanism 17 drives the base to move, and can also form a first relative stroke between the cover plate 11 and the carrier flow channel.

[0054] In one embodiment, Figure 1As shown, the cutter assembly further comprises a sliding seat 2 slidably connected to the base body 9 along the direction of the second relative stroke, and the cutting blade 1 is arranged on the sliding seat 2. Figure 5-10 As shown, the sliding seat 2 is also provided with a second limiting groove perpendicular to the direction of the second relative stroke, and the second transmission mechanism 18 includes a second driving wheel and a second driven wheel in meshing transmission, the second driving wheel is coaxially fixed with the rotating main shaft 22, and the second driven wheel is fixed with an eccentric second limiting device, and the second limiting device is slidably inserted into the second limiting groove. The second limiting device has the same structure as the first limiting device, both of which are limiting pins eccentrically fixed on the gear, inserted and slidably matched in the limiting groove. In another embodiment, the second limiting device and the first limiting device can also be other structures, such as a cam follower or a bearing structure.

[0055] In this embodiment, if Figure 1 As shown, the direction of the second relative stroke is the same as the direction of the first relative stroke, both along the X-axis direction, and in one embodiment, the sliding seat 2 is slidably connected to the cover plate 11, so that the second relative stroke also occurs on the cover plate 11. Specifically, as Figure 5-10 As shown, a guide rail arranged along the second relative stroke direction is provided on the cover plate 11, and the bottom of the sliding seat 2 is slidably sleeved on the guide rail. The second limiting groove is also opened along the vertical Z-axis direction and is parallel to the first limiting groove 241. Therefore, when the second driving wheel rotates, it drives the second driven wheel to rotate in the same vertical plane. The second limiting device is eccentrically arranged on the side of the second driven wheel, so the second limiting device rotates in the vertical plane. Since the second limiting device is slidably inserted in the second limiting groove opened vertically, only relative movement in the vertical direction occurs between the second limiting device and the sliding seat 2, and in the horizontal direction, the second limiting device drives the entire sliding seat 2 to move synchronously, thereby realizing the horizontal reciprocating motion of the sliding seat 2 under the drive of the rotating main shaft 22, that is, forming the second relative stroke.

[0056] In another embodiment, the limiting platform 3 and the mounting plate 10, or the limiting platform 3 and the supporting plate 14, are fixed on the same movable base, and the second limiting groove is opened on the base, and the second transmission mechanism 18 cooperates with the second limiting groove, so that when the sliding base 2 is fixed, the second transmission mechanism 18 drives the base to move, and can also form a second relative stroke between the cutting blade 1 and the carrier flow channel.

[0057] Through the above-mentioned arrangement, the width of the carrier flow channel is first adjusted according to the width of the material belt 4. After the material belt 4 enters the carrier flow channel, the cover plate 11 has a first relative stroke relative to the material belt 4, and presses the material belt 4 to limit it on the carrier flow channel, thereby improving the stability during cutting. Subsequently, the cutting blade 1 enters and exits the carrier flow channel under the second relative stroke, and cuts off the end of the material belt 4.

[0058] In one embodiment, Figure 1-3 As shown, the cutting device further includes a fixed blade 8, which is located directly below the carrier flow channel and on the motion path of the second relative stroke of the cutting blade 1, and the bottom of the material to be processed placed on the carrier flow channel is supported on the fixed blade 8 during cutting. Specifically, a receiving top plate 6 is provided on the base 9 in a sliding connection, and the fixed blade 8 is fixedly installed in a cutting groove 7 opened on the end of the receiving top plate 6, and the rotating main shaft 22 is also transmission-connected with a fourth transmission mechanism 61, and the lifting and lowering of the receiving top plate 6 is realized by the fourth transmission mechanism 61.

[0059] With the cooperation of the fixed blade 8, the cutting blade 1 adopts a circular blade and is rotatably connected to the sliding seat 2. When the cutting blade 1 moves in the second relative stroke, the material strip 4 supported on the fixed blade 8 can be cut off. However, after the end of the material strip 4 is cut off, the broken part of the waste needs to be processed, so optimization needs to be performed for this problem.

[0060] In one embodiment, Figure 1-4 As shown, the cover plate 11 is provided with a cutting groove 13, and the cutting groove 13 is open at one end connected to the carrier flow channel, and the cutting blade 1 is in or partially in the cutting groove 13. A blanking notch 15 is provided at one end of the support plate 14, and one side of the blanking notch 15 is connected to the carrier flow channel, and a support block 16 is rotatably connected in the blanking notch 15, and one end of the support block 16 extends along the carrier flow channel to the second relative stroke of the cutting blade 1, and the other end extends in the opposite direction to the end of the carrier flow channel. Through such a design, since the support block 16 is located on one side of the cutting groove 13, and the other end of the support block 16 extends to the end of the carrier flow channel, the waste formed by the material strip 4 placed on the carrier flow channel after being cut will be placed on the support block 16, and since the support block 16 is rotatably connected to the blanking notch 15, when the support block 16 rotates downward, the waste will naturally fall, thereby achieving the effect of automatic material removal.

[0061] In one embodiment, Figure 1-4As shown, the supporting plate 14 and the side opposite to the limiting platform 3 are both concavely formed with a step 12 for placing the material to be processed, so that when the material strip to be processed enters the carrier flow channel, its two sides can be limited and constrained at the step 12, which is more conducive to maintaining the stability of the material strip when it is cut. Correspondingly, the support block 16 is also provided with a step 12, and when the support block 16 rotates to a horizontal state, the step 12 of the support block 16 is aligned with the step 12 of the supporting plate 14.

[0062] Correspondingly, such as Figure 1-4 As shown, the rotating main shaft 22 is also connected to a third transmission mechanism 161, and the third transmission mechanism 161 is used to drive the support block 16 to rotate in the blanking notch 15 to switch between a horizontal state and a vertical downward state.

[0063] In the above multiple embodiments, Figure 1 and 5 As shown, there are four transmission components, namely, the first transmission mechanism 17, the second transmission mechanism 18, the third transmission mechanism 161 and the fourth transmission mechanism 61, which are all connected to the rotating main shaft 22, and then drive different objects respectively to complete their respective actions. In this way, the four power sources originally required are integrated into one power source, which reduces the cost, saves components, and also reduces the occupied space of the overall equipment. However, as different embodiments, the above four transmission components can also be provided with independent power sources respectively. The following is an example of the above four transmission components sharing the same power source.

[0064] In one embodiment, Figure 5-10 As shown, the power motor 21 is fixed on the base 9, and the rotating main shaft 22 is arranged horizontally and connected to the power motor. The first transmission mechanism 17 includes a first driving wheel and a first driven wheel of meshing transmission, the first driving wheel is coaxially fixed with the rotating main shaft 22, and the first driven wheel is fixed with an eccentric first limit device 271, and the first limit device 271 is slidably penetrated in the first limit groove 241. The first driving wheel is a sector gear, and the first driven wheel is a complete gear. The teeth of the sector gear mesh with the teeth of the complete gear for transmission. Of course, in another embodiment, the arrangement can also be reversed, that is, the first driven wheel is a sector gear and the first driving wheel is a complete gear.

[0065] In this embodiment, if Figure 5-10 As shown, on the first driving wheel and the first driven wheel, the arc length corresponding to the teeth of the sector gear is equal to the circumference of the teeth of the complete gear, so that when the driving wheel rotates the angle corresponding to the sector gear, the driven wheel rotates one circle. In one embodiment, the arc length corresponding to the teeth of the sector gear is equal to half the circumference of the teeth of the complete gear, so that when the driving wheel rotates the angle corresponding to the sector gear, the driven wheel rotates half a circle.

[0066] The second transmission mechanism 18 includes a second driving wheel and a second driven wheel which are meshed and driven. Figure 5-10 As shown, the second driving wheel is coaxially fixed with the rotating main shaft 22, and the second driven wheel is fixed with an eccentric second limiting device, and the second limiting device is slidably inserted into the second limiting groove. The second driving wheel is a sector gear, and the second driven wheel is a complete gear. The teeth of the sector gear mesh with the teeth of the complete gear for transmission. Of course, in another embodiment, the arrangement can also be reversed, that is, the second driven wheel is a sector gear, and the second driving wheel is a complete gear.

[0067] In this embodiment, if Figure 5-10 As shown, on the second driving wheel and the second driven wheel, the arc length corresponding to the teeth of the sector gear is equal to the circumference of the teeth of the complete gear, so that when the driving wheel rotates the angle corresponding to the sector gear, the driven wheel rotates one circle. In one embodiment, the arc length corresponding to the teeth of the sector gear is equal to half the circumference of the teeth of the complete gear, so that when the driving wheel rotates the angle corresponding to the sector gear, the driven wheel rotates half a circle.

[0068] Since the two driving wheels are coaxially fixed on the rotating main shaft 22, when the rotating main shaft 22 rotates, it can drive the two rotating wheels to rotate synchronously, thereby forming two movements, namely, driving the cover plate 11 to move to form a first relative stroke and driving the sliding seat 2 to move to form a second relative stroke.

[0069] Since the cover plate 11 needs to press the material strip 4 before the cutting blade 1 is started to cut the material strip when the material strip is cut, the two relative strokes need to be in a certain order. Therefore, in one embodiment, the teeth of the first driving wheel and the teeth of the second driving wheel are overlapped or staggered in the axial direction of the rotating main shaft 22. As a preferred embodiment of this embodiment, Figure 5-10 As shown, the toothed portion of the first driving wheel and the toothed portion of the second driving wheel are completely staggered in the axial direction of the rotating main shaft 22 .

[0070] The third transmission mechanism 161 includes a first cam 25 coaxially fixed to the rotating main shaft 22, and a first connecting rod 29 rotatably connected to the base 9. Figure 5-10As shown, the first cam 25 is provided with a first guide arc surface 253 and a second guide arc surface 254, the radii of the circumference of the first guide arc surface 253 and the second guide arc surface 254 are different and smoothly connected through the transition section 28, one end of the first connecting rod 29 is rotatably connected to the support block 16, and the other end is closely attached to the first guide arc surface 253 or the second guide arc surface 254. Since the radii of the circumference of the first guide arc surface 253 and the second guide arc surface 254 are different, and one end of the first connecting rod 29 is always closely attached to the guide arc surface, when one end of the first connecting rod 29 transitions from the first guide arc surface 253 to the second guide arc surface 254, the end of the first connecting rod 29 undergoes a lifting movement in the vertical direction, and correspondingly, the other end of the first connecting rod 29 connected to the support block 16 also undergoes a reverse lifting movement synchronously, and the position of the support block 16 is also maintained stable in the second guide arc surface 254.

[0071] The fourth transmission mechanism 61 includes a second cam coaxially fixed to the rotating main shaft 22, and a second connecting rod 30 rotatably connected to the base 9. Figure 5-10 As shown, the second cam is provided with a first arc groove 251 and a second arc groove 252, the first arc groove 251 and the second arc groove 252 have different radii and are smoothly connected through the transition section 28, one end of the second connecting rod 30 is rotatably connected to the receiving top plate 6, and the other end is limitedly matched in the first arc groove 251 or the second arc groove 252. Since the radii of the first arc groove 251 and the second arc groove 252 are different, and one end of the second connecting rod 30 is slidably limited therein, when the second cam rotates, after the end of the second connecting rod 30 enters the second arc groove 252 from the first arc groove 251, the end undergoes a lifting displacement in the vertical direction, so that correspondingly, the end of the second connecting rod 30 connected to the receiving top plate 6 undergoes a synchronous and reverse lifting motion, and in the entire second arc groove 252, the second connecting rod 30 will maintain the state of the height, that is, the receiving top plate 6 and the fixed blade 8 maintain a stable position state.

[0072] It should be noted that a bearing is fixed to the side surface of one end of the second connecting rod, and the axial surface of the bearing is slidably matched with the first arc groove or the second arc groove, thereby forming a limit matching action between the second connecting rod and the first arc groove or the second arc groove; a bearing is fixed to the side surface of one end of the first connecting rod, and the axial surface of the bearing is slidably matched with the first guide arc surface or the second guide arc surface, thereby forming a limit matching action between the first connecting rod and the first guide arc surface or the second guide arc surface. Moreover, since the guide arc surface is opened on the circumferential surface of the cam, in order to keep the bearing at the end of the first connecting rod in a tight state with it, a necessary tension spring structure is also provided, so that the end bearing of the first connecting rod is always tightly fitted to the circumferential surface of the cam.

[0073] In one embodiment, the third transmission mechanism 161 is used to drive the receiving top plate 6 to move up and down, and the fourth transmission mechanism 61 is used to drive the supporting block 16 to rotate.

[0074] In one embodiment, the first cam 25 and the second cam are two cams 25 arranged coaxially; or, in another embodiment, as Figure 5-10 As shown, the first cam 25 and the second cam are the same cam 25, and the first arc groove 251 and the second arc groove 252 are opened on the same side of the cam 25, and the first guide arc surface 253 and the second guide arc surface 254 are arranged on the peripheral side surface of the cam 25, that is, the driving of two transmission mechanisms can be realized by one cam 25.

[0075] Since the transition sections 28 in the third transmission mechanism 161 and the fourth transmission mechanism 61 are processes that cause the state and position of the driven object to change, and the arc grooves and the guide arc surfaces are used to maintain different states of the driven objects, the angular position of the transition section 28 relative to the rotating main shaft 22 can be reasonably set to adjust the order of occurrence of different actions.

[0076] In one embodiment, Figure 5-10 As shown, the sector-shaped teeth of the first driving wheel 231 correspond to one-third of the angular area of ​​the rotating main shaft 22, the sector-shaped teeth of the second driving wheel 233 correspond to another staggered one-third of the angular area of ​​the rotating main shaft 22, and the four transition sections 28 contained in the third transmission mechanism 161 and the fourth transmission mechanism 61 are arranged in the remaining one-third of the angular area between the two driving gears.

[0077] When the action occurs, the rotating main shaft 22 rotates under the drive of the power motor 21. When the rotating main shaft 22 rotates the first one-third of the angle, the four driving mechanisms all move synchronously, and the first driving wheel 231 first meshes with the first driven wheel 232 to drive the cover plate 11 to move, and then the first driving wheel 231 disengages from the first driven wheel 232, and the cover plate 11 remains in position;

[0078] The main shaft 22 continues to rotate, driving the cam 25 to continue to rotate until the first connecting rod 29 is separated from the first arc groove 251, passes through the transition section 28 and enters the second arc groove 252, at which time the receiving top plate 6 is lifted once; at the same time, the end of the second connecting rod 30 also passes through the transition section 28 from the first guide arc surface 253 and enters the second guide arc surface 254, so that the support block 16 also rotates once;

[0079] Then the main shaft 22 continues to rotate, and the second driving wheel 233 rotates to a position where it meshes with the second driven wheel 234, at which time the sliding seat 2 is driven to move, and the cutting blade 1 forms a second relative stroke to complete the cutting action. At the same time, the second driving wheel 233 is disengaged from the second driven wheel 234, and the sliding seat 2 is reset and remains stationary.

[0080] As the rotating main shaft 22 rotates, the cam 25 continues to rotate, and the first connecting rod 29 and the second connecting rod 30 pass through the transition section 28 respectively. One end of the first connecting rod 29 returns from the second arc groove 252 to the first arc groove 251, and the top plate 6 is reset. At the same time, one end of the second connecting rod 30 returns from the second guide arc surface 254 to the first guide arc surface 253, and the support block 16 rotates and resets.

[0081] At this point, the rotating main shaft 22 completes one rotation.

[0082] The present invention also proposes an application of the cutting device as described above on a material receiving machine. Specifically, two cutting devices can be arranged symmetrically on the left and right, and a material receiving machine is arranged in the middle, so that cutting is performed on both sides respectively, and the cut material strips 44 are joined at the middle material receiving machine to form a complete material receiving production line.

[0083] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cutting device, comprising a base, characterized in that: Also includes: A carrier assembly, comprising a position-limiting carrier and a cover plate, wherein a carrier flow channel is formed on one side of the position-limiting carrier, and a first relative stroke is provided between the cover plate and the position-limiting carrier, and in the first relative stroke, the cover plate covers or opens a part or all of an upper opening of the carrier flow channel; A cutting blade assembly, comprising a cutting blade, wherein the cutting blade and the carrier flow channel have a second relative stroke, and in the second relative stroke, the cutting blade enters or exits the carrier flow channel; The driving assembly comprises a power motor and a rotating spindle, wherein the power motor is connected to the rotating spindle in a power connection, and the rotating spindle is connected to a first transmission mechanism and a second transmission mechanism in a power connection, wherein the first transmission mechanism is connected to the limiting platform and / or the cover plate in a power connection to form the first relative stroke; and the second transmission mechanism is connected to the cutting blade and / or the platform assembly in a power connection to form the second relative stroke; The first transmission mechanism includes a first driving wheel and a first driven wheel engaged in meshing transmission, and the second transmission mechanism includes a second driving wheel and a second driven wheel engaged in meshing transmission; The first driving wheel is a sector gear, the first driven wheel is a full gear, the teeth of the sector gear mesh with the teeth of the full gear for transmission; the second driving wheel is a sector gear, the second driven wheel is a full gear, the teeth of the sector gear mesh with the teeth of the full gear for transmission; Furthermore, the teeth of the first driving wheel and the teeth of the second driving wheel are overlapped or staggered in the axial direction of the rotating main shaft.

2. The cutting device according to claim 1, characterized in that: The cover plate is slidably connected to the base along the direction of the first relative stroke, and a first limiting groove perpendicular to the direction of the first relative stroke is also opened on the cover plate. The first transmission mechanism includes the first driving wheel and the first driven wheel of meshing transmission, the first driving wheel is coaxially fixed with the rotating main shaft, and the first driven wheel is fixed with an eccentric first limiting device, and the first limiting device is slidably penetrated into the first limiting groove.

3. The cutting device according to claim 2, characterized in that: The cutter assembly also includes a sliding seat slidably connected to the base along the direction of the second relative stroke, the cutting blade is arranged on the sliding seat, and the sliding seat is also provided with a second limiting groove perpendicular to the direction of the second relative stroke. The second transmission mechanism includes the second driving wheel and the second driven wheel of meshing transmission, the second driving wheel is coaxially fixed with the rotating main shaft, and the second driven wheel is fixed with an eccentric second limiting device, and the second limiting device is slidably penetrated into the second limiting groove.

4. The cutting device according to claim 1, characterized in that: A supporting plate is fixedly connected to the base, the supporting plate is opposite to the limiting platform and the upper end surface is flush, a gap is left between the supporting plate and the limiting platform to form the carrier flow channel, and a platform driving component is also provided on the base, and the platform driving component drives the limiting platform and / or the supporting plate to move.

5. The cutting device according to claim 4, characterized in that: A blanking notch is formed at one end of the support plate, one side of the blanking notch is connected to the carrier flow channel, a support block is rotatably connected in the blanking notch, one end of the support block extends along the carrier flow channel to the second relative stroke of the cutting blade, and the other end extends in the opposite direction to the end of the carrier flow channel.

6. The cutting device according to claim 5, characterized in that: The rotating main shaft is also transmission-connected with a third transmission mechanism, and the third transmission mechanism includes a first cam coaxially fixed with the rotating main shaft, and a first connecting rod rotationally connected to the base, the first cam is provided with a first guiding arc surface and a second guiding arc surface, the radii of the circles on which the first guiding arc surface and the second guiding arc surface are located are different, and the circles are smoothly connected through a transition section, one end of the second connecting rod is rotationally connected to the support block, and the other end is tightly fitted against the first guiding arc surface or the second guiding arc surface.

7. The cutting device according to claim 6, characterized in that: The limiting carrier is provided with an avoidance groove, one end of which is opened and communicated with the carrier flow channel, and the avoidance groove is located on the movement path of the second relative stroke of the cutting blade.

8. The cutting device according to claim 7, characterized in that: The cutting device also includes a fixed blade, which is located directly below the carrier flow channel and on the movement path of the second relative stroke of the cutting blade, and the bottom of the material to be processed placed on the carrier flow channel is supported on the fixed blade during cutting.

9. The cutting device according to claim 8, characterized in that: The base is provided with a receiving top plate in a sliding connection, the fixed blade is fixedly mounted on the end of the receiving top plate, and the rotating main shaft is also transmission-connected with a fourth transmission mechanism, the fourth transmission mechanism includes a second cam coaxially fixed with the rotating main shaft, and a second connecting rod rotationally connected to the base, the second cam is provided with a first arc groove and a second arc groove, the radii of the first arc groove and the second arc groove are different and are smoothly connected through a transition section, one end of the second connecting rod is rotationally connected to the receiving top plate, and the other end is limitedly fitted in the first arc groove or the second arc groove.

10. The cutting device according to claim 9, characterized in that: The first cam and the second cam are two cams arranged coaxially; or, the first cam and the second cam are the same cam, and the first arc groove and the second arc groove are opened on the same side of the cam, and the first guide arc surface and the second guide arc surface are arranged on the peripheral side surface of the cam.

11. Use of the cutting device according to any one of claims 1 to 10 in a material receiving machine.

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