Servo edge material shearing structure

Abstract

The invention relates to a servo trimming structure, which comprises a support frame body, a servo trimming mechanism, a servo trimming mechanism and a servo trimming mechanism, wherein a to-be-trimmed material is arranged on the support frame body; the material shearing unit comprises a position adjusting assembly, a shearing driving assembly, a guide plate and scissors, the guide plate is provided with a first kidney-shaped groove and a second kidney-shaped groove, two handles of the scissors are connected with a first connecting rod and a second connecting rod respectively, and the other end, away from the scissors, of the first connecting rod is connected with a first rolling wheel; the other end, away from the scissors, of the second connecting rod is connected with a second roller, the first roller is in rolling connection with the first kidney-shaped groove, the second roller is in rolling connection with the second kidney-shaped groove, and the shearing driving assembly drives the guide plate to move to achieve opening and closing of the scissors. According to the servo trimming structure, return driving force is stable, notches are regular and uniform, the product yield and consistency are well guaranteed, the use value of equipment is further improved, and better economic value is created.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding, in particular to a structure of a servo trimming material. Background Art

[0002] At present, the tail of injection molded parts has cutting edges, which are all cut manually with scissors. On the one hand, the cutting is not neat, resulting in unqualified injection molded parts after molding, which seriously affects the appearance of the injection molded parts. On the other hand, during manual operation, workers' hands are easily fatigued, which increases the labor intensity of workers, and the production efficiency is low, which increases the cost of the enterprise.

[0003] To solve the above problem, Chinese patent CN 201520756588.3 discloses an injection molding machine edge material shearing device, including: a support, a lower blade seat, a lower blade, an upper blade, an upper blade mounting seat, a double-axis cylinder, a double-axis cylinder mounting seat, a linear guide and a slider; the support is provided with a mounting hole, the lower blade seat is a "U"-shaped structure, the lower blade seat is fixedly mounted on the support and close to the left side of the support by bolts, the lower blade is fixedly mounted on the top surface of the lower blade seat by bolts, the linear guide is fixedly mounted on the top surface of the support by bolts, the slider is mounted on the linear guide and can slide left and right, the double-axis cylinder mounting seat is fixedly mounted on the top surface of the support and close to the right side of the support, the double-axis cylinder is fixedly mounted on the top surface of the double-axis cylinder mounting seat by bolts, the left end of the piston rod of the double-axis cylinder is fixedly mounted on the right side of the upper blade mounting seat, the bottom surface of the upper blade mounting seat is fixedly mounted on the top surface of the slider, and the upper blade is fixed to the top surface of the upper blade mounting seat by bolts. However, this solution is only applicable to the case where there is a trimmed edge at the tail of the injection molded part. When the trim of the injection molded part is on the side wall, the shearing action generated by the staggered upper and lower blades cannot remove the trim. Therefore, the above solution has poor adaptability. Summary of the invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the problem that the edge material shearing device in the prior art not only has poor shearing adaptability, but also has an irregular shape of the cut, resulting in poor product consistency.

[0005] In order to solve the above technical problems, the present invention provides a structure of servo trimming material, comprising: a support frame, on which is provided a material to be trimmed; a trimming unit, which is arranged on the support frame, and the trimming unit is provided with at least one; the trimming unit comprises a position adjustment component, a shearing drive component, a guide plate and scissors, the position adjustment component is arranged on the support frame, the shearing drive component is arranged on the position adjustment component, the guide plate and the shearing drive component are fixedly connected, the guide plate is provided with a first waist-shaped groove and a second waist-shaped groove, the first waist-shaped groove and the second waist-shaped groove are arranged in an "eight" shape, and the A hinged support seat is provided on the position adjustment component, and the blade shaft of the scissors is rotatably connected to the hinged support seat. The two handles of the scissors are respectively connected with a first connecting rod and a second connecting rod, the other end of the first connecting rod away from the scissors is connected with a first roller, and the other end of the second connecting rod away from the scissors is connected with a second roller, the first roller is arranged in a first waist-shaped groove, and the first roller and the first waist-shaped groove are rollingly connected, the second roller is arranged in a second waist-shaped groove, and the second roller and the second waist-shaped groove are rollingly connected, and the shearing drive component drives the guide plate to move to realize the opening and closing of the scissors.

[0006] In one embodiment of the present invention, one end of the first connecting rod having the first roller is provided with a first guide wheel, and one end of the second connecting rod having the second roller is provided with a second guide wheel, the first guide wheel and the second guide wheel are in contact with the side of the guide plate, and the first guide wheel and the second guide wheel can roll along the side of the guide plate.

[0007] In one embodiment of the present invention, the shear drive assembly includes a servo motor, a transmission assembly, a screw, a screw support seat and a moving block, the servo motor is connected to the screw through the transmission assembly, the screw support seat is fixedly set on the position adjustment assembly, the screw is set on the screw support seat, the moving block and the screw nut on the screw are fixedly connected, and the guide plate is locked on the moving block by a fastener.

[0008] In one embodiment of the present invention, the transmission assembly includes a driving wheel, a gear belt and a driven wheel, the driving wheel is connected to the rotating shaft of the servo motor, the gear belt is sleeved on the driving wheel and the driven wheel, and the driven wheel is connected to one end of the screw rod.

[0009] In one embodiment of the present invention, the position adjustment assembly is provided with a first linear guide rail, the moving block is provided with a slider 1, the slider 1 is arranged on the first linear guide rail, and the slider 1 can slide along the first linear guide rail.

[0010] In one embodiment of the present invention, the position adjustment assembly includes a slide cylinder and a movable plate, the slide cylinder is fixedly mounted on a support frame, the movable plate is connected to a slider of the slide cylinder, the shearing unit is arranged on the movable plate, and the slide cylinder drives the scissors to move closer to or away from the position to be sheared.

[0011] In one embodiment of the present invention, a material shifting plate is provided on the hinged support seat, the lower end of the material shifting plate is configured as an inclined portion, the lower end of the inclined portion is horizontally positioned lower than the tip of the scissors, and the material shifting plate is used to shift the material to be sheared.

[0012] In one embodiment of the present invention, a first slot-type photoelectric switch and a second slot-type photoelectric switch are provided on the support frame, and a sensor sheet is provided on the movable plate. The signal between the sensor sheet and the first slot-type photoelectric switch and the second slot-type photoelectric switch is used to feedback the position of the movable plate.

[0013] In one embodiment of the present invention, a pressing assembly is provided on the support frame, and the pressing assembly includes a cylinder mounting bracket, a pressing cylinder and a pressing head. The cylinder mounting bracket is fixedly connected to the support frame, the pressing cylinder is mounted on the cylinder mounting bracket, the pressing head is connected to the piston rod of the pressing cylinder, and the pressing cylinder drives the pressing head to press on the product to be sheared.

[0014] In one embodiment of the present invention, the structure of the servo trimming material further includes a waste collection bucket, which is located below the material to be trimmed on the support frame, and the material to be trimmed cut by the scissors directly falls into the waste collection bucket.

[0015] The above technical solution of the present invention has the following beneficial effects compared with the prior art: The servo trimming structure described in the present invention places the product to be trimmed at the designated position of the support frame, the pressing mechanism is actuated to press the product to be trimmed, the slide mechanism of the position adjustment component extends to move the upper scissors into place, the shearing drive component drives the guide plate to move in a straight line, and then drives the scissors to cut the trimmings on the product, the trimmings fall into the waste collection box, and the slide mechanism of the position adjustment component retreats. With this structure, the return driving force is stable and the cutting rules are unified, so that the product yield and consistency are well guaranteed, the use value of the equipment is further improved, and better economic value is created. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below according to specific embodiments of the present invention in conjunction with the accompanying drawings, wherein Figure 1 It is a schematic diagram of the overall structure of the servo trimming material structure in a preferred embodiment of the present invention; Figure 2The structure of the shearing unit in the preferred embodiment of the present invention is shown in FIG. Figure 1 ; Figure 3 The structure of the shearing unit in the preferred embodiment of the present invention is shown in FIG. Figure 2 ; Figure 4 The structure of the shearing unit in the preferred embodiment of the present invention is shown in FIG. Figure 3 ; Figure 5 It is a schematic diagram of the partial structure of the shearing unit in the preferred embodiment of the present invention; Figure 6 It is a schematic structural diagram of a material pressing assembly in a preferred embodiment of the present invention.

[0017] Description of the accompanying drawings: support frame 1, shearing unit 2, position adjustment component 21, hinged support seat 210, slide cylinder 211, moving plate 212, shearing drive component 22, servo motor 221, transmission component 222, screw 223, screw support seat 224, moving block 225, driving wheel 226, gear belt 227, first linear guide rail 228, slider 229, guide plate 23, scissors 24, first connecting rod 241, second connecting rod 242, first roller 243, second roller 244, first guide wheel 245, second guide wheel 246, first waist groove 25, second waist groove 26, DETAILED DESCRIPTION

[0018] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0019] Reference Figure 1-5As shown, the structure of the servo trimming material of the present invention comprises: a support frame 1 and a trimming unit 2; the support frame 1 is provided with a material to be trimmed; the trimming unit 2 is arranged on the support frame 1, and the trimming unit 2 is provided with at least one; the trimming unit 2 comprises a position adjustment component 21, a shearing drive component 22, a guide plate 23 and a pair of scissors 24, the position adjustment component 21 is arranged on the support frame 1, the shearing drive component 22 is arranged on the position adjustment component 21, the guide plate 23 and the shearing drive component 22 are fixedly connected, the guide plate 23 is provided with a first waist-shaped groove 25 and a second waist-shaped groove 26, the first waist-shaped groove 25 and the second waist-shaped groove 26 are arranged in an "eight" shape, and the position adjustment component 21 is provided with a There is an articulated support seat 210, and the blade axis of the scissors 24 is rotatably connected to the articulated support seat 210. The two handles of the scissors 24 are respectively connected with a first connecting rod 241 and a second connecting rod 242. The other end of the first connecting rod 241 away from the scissors 24 is connected with a first roller 243, and the other end of the second connecting rod 242 away from the scissors 24 is connected with a second roller 244. The first roller 243 is arranged in the first waist-shaped groove 25, and the first roller 243 and the first waist-shaped groove 25 are rollingly connected. The second roller 244 is arranged in the second waist-shaped groove 26, and the second roller 244 and the second waist-shaped groove 26 are rollingly connected. The shearing drive assembly 22 drives the guide plate 23 to move to realize the opening and closing of the scissors 24.

[0020] In the above structure, the first connecting rod 241 is provided with a first roller 243 at one end thereof and a first guide wheel 245, and the second connecting rod 242 is provided with a second roller 244 at one end thereof and a second guide wheel 246, the first guide wheel 245 and the second guide wheel 246 are in contact with the side of the guide plate 23, and the first guide wheel 245 and the second guide wheel 246 can roll along the side of the guide plate 23.

[0021] Reference Figure 3 , 4As shown, the shear drive assembly 22 includes a servo motor 221, a transmission assembly 222, a screw 223, a screw support seat 224 and a moving block 225. The servo motor 221 is connected to the screw 223 through the transmission assembly 222. The screw support seat 224 is fixedly arranged on the position adjustment assembly 21. The screw 223 is arranged on the screw support seat 224. The moving block 225 is fixedly connected to the screw nut on the screw 223. The guide plate 23 is locked on the moving block 225 by a fastener. The transmission assembly 222 includes a driving wheel 226, a gear belt 227 and a driven wheel. The driving wheel 226 is connected to the rotating shaft of the servo motor 221. The gear belt 227 is sleeved on the driving wheel 226 and the driven wheel. The driven wheel is connected to one end of the screw 223. The position adjustment assembly 21 is provided with a first linear guide rail 228 , and the moving block 225 is provided with a slider 1 229 . The slider 1 229 is disposed on the first linear guide rail 228 , and the slider 1 229 can slide along the first linear guide rail 228 .

[0022] On the high-pressure syringe assembly equipment, a servo motor 221 is used to drive the guide plate 23 to move linearly, thereby driving the scissors 24 to move, and finally accurately cutting off the edge material of the product.

[0023] Reference Figure 3 , 4 As shown, the position adjustment component 21 includes a slide cylinder 211 and a movable plate 212. The slide cylinder 211 is fixedly set on the support frame 1. The movable plate 212 is connected to the slider of the slide cylinder 211. The shearing unit 2 is set on the movable plate 212. The slide cylinder 211 drives the scissors 24 to approach or move away from the position to be sheared.

[0024] In the above structure, a material shifting plate 27 is provided on the hinged support seat 210, and the lower end of the material shifting plate 27 is set as an inclined portion 271. The horizontal position of the lower end of the inclined portion 271 is lower than the tip of the scissors 24. The material shifting plate 27 is used to shift the material to be cut.

[0025] In the above structure, the support frame 1 is provided with a first slot-type photoelectric switch 11 and a second slot-type photoelectric switch 12, and the movable plate 212 is provided with a sensor sheet 213. The signal between the sensor sheet 213 and the first slot-type photoelectric switch 11 and the second slot-type photoelectric switch 12 is used to feedback the position of the movable plate 212.

[0026] Reference Figure 6As shown, a pressing assembly 3 is provided on the support frame 1, and the pressing assembly 3 includes a cylinder mounting bracket 31, a pressing cylinder 32 and a pressing head 33. The cylinder mounting bracket 31 is fixedly connected to the support frame 1, and the pressing cylinder 32 is installed on the cylinder mounting bracket 31. The pressing head 33 is connected to the piston rod of the pressing cylinder 32, and the pressing cylinder 32 drives the pressing head 33 to press on the product to be sheared.

[0027] In addition, the structure of the servo trimming material further includes a waste collection bucket 4 , which is located below the material to be trimmed on the support frame 1 , and the material to be trimmed cut by the scissors 24 directly falls into the waste collection bucket 4 .

[0028] The working method of the servo trimming structure of the present invention comprises the following steps: S1, the slide cylinder 211 drives the moving plate 212 to move upward, driving the shear drive assembly 22 and the scissors 24 to move upward, avoiding the product placement position of the support frame 1; S2, placing the product to be cut on the product placement position of the support frame 1, at this time, the scissors 24 are at the position of the product to be cut; S3, the slide cylinder 211 drives the moving plate 212 to move toward the product to be sheared, so that the position of the product to be sheared is located between the blade tips of the scissors 24; S4, the servo motor 221 is started, driving the driving wheel 226 to rotate, the driving wheel 226 drives the driven wheel to rotate through the gear belt 227, and then drives the screw rod 223 to rotate, and the screw rod nut moves along the axis direction of the screw rod 223; S5, the moving block 225 synchronizes the screw nut to move along the axis direction of the screw 223, so that the guide plate 23 moves toward the product to be sheared; S6. Since the first waist-shaped groove 25 and the second waist-shaped groove 26 are arranged in an "eight" shape, and the end of the small end opening between the first waist-shaped groove 25 and the second waist-shaped groove 26 is far away from the product to be sheared, when the guide plate 23 moves, the first roller 243 rolls in the first waist-shaped groove 25, and the second roller 244 rolls in the second waist-shaped groove 26. The first roller 243 and the second roller 244 move from the side of the large end opening of the first waist-shaped groove 25 and the second waist-shaped groove 26 to the side of the small end opening, thereby driving the first connecting rod 241 and the second connecting rod 242 to use the hinged support seat 210 as a fulcrum, so that the distance between one end of the first connecting rod 241 and the second connecting rod 242 is reduced, and the two handles of the scissors 24 are pressed together by the first connecting rod 241 and the second connecting rod 242, so that the distance between the blade tips of the scissors 24 is reduced, and the position to be sheared is sheared; S7, the cut waste falls into the waste collection bucket 4; S8, the position adjustment component 21 and the shearing drive component 22 are reset, and the product after the waste is sheared is removed from the support frame 1.

[0029] Obviously, the above embodiments are merely examples for clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the protection scope of the invention.

Claims

1. A structure for servo trimming, characterized in that: include, A support frame, on which the material to be sheared is arranged; A material cutting unit is arranged on the supporting frame, and the number of the material cutting unit is at least one; The shearing unit includes a position adjustment component, a shearing drive component, a guide plate and scissors. The position adjustment component is arranged on a supporting frame, the shearing drive component is arranged on the position adjustment component, the guide plate and the shearing drive component are fixedly connected, the guide plate is provided with a first waist-shaped groove and a second waist-shaped groove, the first waist-shaped groove and the second waist-shaped groove are arranged in an "eight" shape, the position adjustment component is provided with a hinged support seat, the knife shaft of the scissors is rotatably connected to the hinged support seat, the two handles of the scissors are respectively connected with a first connecting rod and a second connecting rod, the other end of the first connecting rod away from the scissors is connected with a first roller, the other end of the second connecting rod away from the scissors is connected with a second roller, the first roller is arranged in the first waist-shaped groove, and the first roller is rollingly connected to the first waist-shaped groove, the second roller is arranged in the second waist-shaped groove, and the second roller is rollingly connected to the second waist-shaped groove, and the shearing drive component drives the guide plate to move to realize the opening and closing of the scissors.

2. The structure of the servo trimming material according to claim 1, characterized in that: The first connecting rod has a first roller at one end and a first guide wheel at the other end, and the second connecting rod has a second roller at one end and a second guide wheel at the other end. The first guide wheel and the second guide wheel are in contact with the side of the guide plate, and the first guide wheel and the second guide wheel can roll along the side of the guide plate.

3. The structure of the servo trimming material according to claim 1, characterized in that: The shear drive assembly includes a servo motor, a transmission assembly, a screw, a screw support seat and a moving block. The servo motor is connected to the screw through the transmission assembly, the screw support seat is fixedly set on the position adjustment assembly, the screw is set on the screw support seat, the moving block and the screw nut on the screw are fixedly connected, and the guide plate is locked on the moving block by a fastener.

4. The structure of the servo trimming material according to claim 3, characterized in that: The transmission assembly comprises a driving wheel, a gear belt and a driven wheel, the driving wheel is connected to the rotating shaft of the servo motor, the gear belt is sleeved on the driving wheel and the driven wheel, and the driven wheel is connected to one end of the screw rod.

5. The structure of the servo trimming material according to claim 4, characterized in that: The position adjustment component is provided with a first linear guide rail, the moving block is provided with a slider 1, the slider 1 is arranged on the first linear guide rail, and the slider 1 can slide along the first linear guide rail.

6. The structure of the servo trimming material according to claim 1, characterized in that: The position adjustment component includes a slide cylinder and a moving plate, wherein the slide cylinder is fixedly mounted on a support frame, the moving plate is connected to a slider of the slide cylinder, the shearing unit is arranged on the moving plate, and the slide cylinder drives the scissors to approach or move away from the position to be sheared.

7. The structure of the servo trimming material according to claim 6, characterized in that: The hinged support seat is provided with a material shifting plate, the lower end of which is arranged as an inclined portion, the lower end of which is at a horizontal position lower than the blade tip of the scissors, and the material shifting plate is used for shifting the material to be sheared.

8. The structure of the servo trimming material according to claim 6, characterized in that: The support frame is provided with a first slot-shaped photoelectric switch and a second slot-shaped photoelectric switch, and the movable plate is provided with a sensor sheet. The signal between the sensor sheet and the first slot-shaped photoelectric switch and the second slot-shaped photoelectric switch is used to feedback the position of the movable plate.

9. The structure of the servo trimming material according to claim 1, characterized in that: The support frame is provided with a pressing assembly, which includes a cylinder mounting bracket, a pressing cylinder and a pressing head. The cylinder mounting bracket is fixedly connected to the support frame, the pressing cylinder is mounted on the cylinder mounting bracket, the pressing head is connected to the piston rod of the pressing cylinder, and the pressing cylinder drives the pressing head to press on the product to be sheared.

10. The structure of the servo trimming material according to claim 1, characterized in that: The structure of the servo trimming material also includes a waste collection bucket, which is located below the material to be trimmed on the support frame, and the material to be trimmed cut by the scissors directly falls into the waste collection bucket.

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