Film tearing mechanism

Abstract

The utility model provides a film tearing mechanism, and belongs to the technical field of machinery. The problem of poor stability in the prior art is solved. The film tearing mechanism comprises a machine frame and further comprises a feeding channel, a support, a first material belt disc, a second material belt disc, a film tearing roller and a driving assembly, the feeding channel and the support are both fixedly connected to the machine frame, and the first material belt disc and the second material belt disc are axially fixed to the two ends of the support respectively. The first material belt disc is located on the rear portion of the second material belt disc in the feeding direction of the feeding channel, the film tearing roller is movably connected to the lower portion of the support, adhesive tape stored in the first material belt disc is wound around the film tearing roller and connected to the second material belt disc, the driving assembly is connected to the support, and in the initial state, the film tearing roller is located over the feeding channel. And after the driving assembly drives the film tearing roller to swing, the film tearing roller can get close to the feeding channel. The film tearing mechanism is high in stability.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinery and relates to a film tearing mechanism. Background Art

[0002] During the machining process of precision workpieces, a protective film needs to be attached to them, for example, the protective film on a semi-finished mobile phone.

[0003] When the workpiece enters the corresponding process for processing, the protective film needs to be torn off.

[0004] In existing industrial production, the protective film is generally torn off by operators. This operation method is labor-intensive, and whether the protective film is completely torn off depends entirely on the operator's experience, resulting in not only low operating efficiency but also poor stability. Summary of the Invention

[0005] The purpose of the utility model is to provide a film tearing mechanism with high working efficiency and compact structure in order to solve the above problems existing in the prior art.

[0006] The objectives of this utility model can be achieved through the following technical solutions:

[0007] The film-tearing mechanism comprises a frame, characterized in that it also comprises a feeding channel, a bracket, a first material strip reel, a second material strip reel, a film-tearing roller and a driving assembly, wherein the feeding channel and the bracket are fixedly connected to the frame, the first material strip reel and the second material strip reel are axially fixed at both ends of the bracket respectively, and the first material strip reel is located at the rear of the second material strip reel along the feeding direction of the feeding channel, the film-tearing roller is movably connected to the lower part of the bracket, the tape stored on one part of the material strip reel is wound around the film-tearing roller and connected to the second material strip reel, the driving assembly is connected to the bracket, and in the initial state, the film-tearing roller is located directly above the feeding channel, and after the driving assembly drives the film-tearing roller to swing, the film-tearing roller can move closer to the feeding channel.

[0008] In the above-mentioned film tearing mechanism, along the moving direction of the workpiece at the feeding channel, the above-mentioned film tearing roller, the second material tape reel and the first material tape reel are arranged from front to back.

[0009] In the above-mentioned film tearing mechanism, a transition roller fixedly connected to the bracket is provided between the second material tape reel and the film tearing roller, and the adhesive tape can be wound around the transition roller.

[0010] In the above-mentioned film tearing mechanism, the bracket is further provided with a tensioning assembly, and the tensioning assembly and the first material tape reel are respectively located on both sides of the second material tape reel.

[0011] In the above-mentioned film tearing mechanism, the tensioning assembly includes a fixed roller and a movable roller. The above-mentioned fixed roller is fixedly connected to the bracket, and the above-mentioned movable roller is connected to the bracket through a fastener and the movable roller is adjacent to the fixed roller. A material transfer channel for the tape to pass through is formed between the fixed roller and the movable roller.

[0012] In the above-mentioned film tearing mechanism, the driving assembly includes a film tearing cylinder, a rocker arm and a roller seat. The middle part of the above-mentioned roller seat is hinged on the bracket, the above-mentioned film tearing roller is movably connected to the outer end of the roller seat, the middle part of the above-mentioned rocker arm is hinged on the bracket, the film tearing cylinder is fixedly connected to the bracket and the piston rod of the film tearing cylinder is opposite to one end of the rocker arm, and the other end of the above-mentioned rocker arm is located at the inner end of the roller seat. Under the action of its own gravity, the roller seat has a tendency to swing down to its inner end and rest against the other end of the rocker arm.

[0013] In the above-mentioned film tearing mechanism, the frame is further provided with a material moving assembly for grabbing the workpiece after film tearing and turning the grabbed workpiece over.

[0014] In the above-mentioned film tearing mechanism, the material moving assembly includes a material moving block, a slide plate 1, a slide plate 2, a driving member 1 and a driving member 2. The material moving block is in the shape of a long block and is fixedly connected to the frame. The above-mentioned slide plate 1 is connected to the upper part of the material moving block. The driving member 1 is fixedly connected to the material moving block and the driving member 1 can drive the slide plate 1 to move horizontally along the material moving block. The above-mentioned slide plate 2 is connected to the slide plate 1. The above-mentioned driving member 2 is fixedly connected to the slide plate 1 and the driving member 2 can drive the slide plate 2 to move horizontally along the slide plate 1. The slide plate 1 is also connected to a vacuum suction cup for grabbing a workpiece, and a transmission mechanism is provided between the slide plate 1 and the slide plate 2, which can flip the vacuum suction cup when the slide plate 2 moves relative to the slide plate 1.

[0015] In the above-mentioned film tearing mechanism, the transmission mechanism includes a rotating shaft, a transmission gear and a rack, the vacuum suction cup includes a frame-shaped body and an adsorption disc fixedly connected to the body, the above-mentioned rotating shaft is fixedly connected to the body and the transmission gear is located in the middle of the rotating shaft, the rotating shaft is axially fixedly connected to the slide one, the above-mentioned rack is fixedly connected to the slide two and the rack is meshed with the transmission gear.

[0016] In the above-mentioned film tearing mechanism, the above-mentioned feeding channel, bracket, material tape reel 1, material tape reel 2, film tearing roller and driving assembly form a film tearing unit, and the number of the adsorption plates is two, and the two adsorption plates are respectively connected to the left and right ends of the main body, and each adsorption plate corresponds to a film tearing unit.

[0017] Compared with the prior art, the film tearing mechanism can quickly complete the film tearing operation after the workpiece to be torn moves intermittently along the feeding channel, and has a relatively high degree of automation and high operating efficiency.

[0018] At the same time, the material transfer component corresponds to the coordinated action of the two film tearing units, which not only further improves its operating efficiency, but also makes the workpiece after film tearing easier to be grasped by the robot in subsequent processes, and its discharge stability is also relatively high.

[0019] In addition, the material transfer assembly is arranged adjacent to the corresponding two film tearing units, and the structure of the entire machine is relatively compact, which has high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural diagram of the film tearing mechanism.

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of the film tearing mechanism in another direction.

[0022] Figure 3 It is a structural diagram of the material transfer component.

[0023] In the figure, 1. frame; 23. material feeding channel; 24. bracket; 25. material reel 1; 26. material reel 2; 27. film tearing roller; 28. transition roller; 29. fixed roller; 30. movable roller; 31. film tearing cylinder; 32. rocker arm; 33. roller seat; 34. material transfer block; 35. slide plate 1; 36. slide plate 2; 37. driving part 1; 38. driving part 2; 39. vacuum suction cup; 39a. body; 39b. suction cup; 40. rotating shaft; 41. transmission gear; 42. rack. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] It should be noted that when a component is referred to as being "mounted on" another component, it may be mounted directly on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component. When a component is considered to be "fixed to" another component, it may be directly fixed to the other component or there may be a central component.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit this invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] like Figure 1 and Figure 2 and Figure 3 As shown, the film tearing mechanism includes a frame 1, and also includes a feeding channel 23, a bracket 24, a material tape reel 1 25, a material tape reel 26, a film tearing roller 27 and a driving assembly. The above-mentioned feeding channel 23 and the bracket 24 are fixed on the frame 1, and the above-mentioned material tape reel 1 25 and the material tape reel 2 26 are axially fixed at the two ends of the bracket 24 respectively. Along the feeding direction of the feeding channel 23, the above-mentioned material tape reel 1 25 is located at the rear of the material tape reel 2 26, and the film tearing roller 27 is movably connected to the lower part of the bracket 24. The tape stored at the material tape reel 1 25 is wound around the film tearing roller 27 and connected to the material tape reel 2 26. The above-mentioned driving assembly is connected to the bracket 1. In the initial state, the film tearing roller 27 is located directly above the feeding channel 23. After the driving assembly drives the film tearing roller 27 to swing, the film tearing roller 27 can move closer to the feeding channel 23.

[0028] The workpiece to be torn passes through the feed channel 23 intermittently.

[0029] The tape reel 1 25 is used to store the tape, and the tape reel 26 is used to reel in waste tape.

[0030] When the workpiece to be torn off at the feed channel 23 moves to the position directly below the tearing roller 27, the drive assembly drives the tearing roller 27 downward. Since the adhesive tape is wound around the tearing roller 27, the adhesive tape will be tightly attached to the workpiece to be torn off. After the tape reel 26 is wound, the film on the workpiece can be torn off stably, and the torn film can be stably carried away along with the adhesive tape.

[0031] Once the film tearing operation is completed, the driving assembly resets the film tearing roller 27. The reset film tearing roller 27 moves upward away from the workpiece at the feeding channel 23, waiting for the next workpiece to be film-torn to enter.

[0032] Along the moving direction of the workpiece at the feeding channel 23, the film tearing roller 27, the second material belt reel 26 and the first material belt reel 25 are arranged from front to back.

[0033] A transition roller 28 fixedly connected to the bracket 24 is provided between the second material tape reel 26 and the film tearing roller 27 , and the adhesive tape can be wound around the transition roller 28 .

[0034] The setting of the transition roller 28 can properly tension the adhesive tape to prevent the adhesive tape from being too loose.

[0035] The bracket 24 also has a tensioning assembly, and the tensioning assembly and the first material reel 25 are respectively located on both sides of the second material reel 26.

[0036] The tensioning assembly can prevent the adhesive tape entering the second tape reel 26 from being too loose.

[0037] The tensioning assembly includes a fixed roller 29 and a movable roller 30. The fixed roller 29 is fixedly connected to the bracket 24. The movable roller 30 is connected to the bracket 24 through a fastener and the movable roller 30 is adjacent to the fixed roller 29. A material passage for the tape to pass through is formed between the fixed roller 29 and the movable roller 30.

[0038] After the fastener is adjusted, the gap between the movable roller 30 and the fixed roller 29 can be changed accordingly, so that the tension of the tape can be properly adjusted, and corresponding adjustments can be made according to different operating requirements, effectively improving its applicability.

[0039] The driving assembly includes a film tearing cylinder 31, a rocker arm 32 and a roller seat 33. The middle part of the above-mentioned roller seat 33 is hinged on the bracket 24, the above-mentioned film tearing roller 27 is movably connected to the outer end of the roller seat 33, the middle part of the above-mentioned rocker arm 32 is hinged on the bracket 24, the film tearing cylinder 31 is fixedly connected to the bracket 24 and the piston rod of the film tearing cylinder 31 is opposite to one end of the rocker arm 32, and the other end of the above-mentioned rocker arm 32 is located at the inner end of the roller seat 33. Under the action of its own gravity, the roller seat 33 has a tendency to swing down to its inner end and abut against the other end of the rocker arm 32.

[0040] In the initial state, the film-tearing roller 27 on the roller seat 33 is away from the feeding channel 23 .

[0041] After the film tearing cylinder 31 presses the swing rod 32, the swing rod 32 presses the roller seat 33. After the roller seat 33 is pressed, the film tearing roller 27 on it swings down to the feeding channel 23, thereby driving the tape to be stably attached to the workpiece to be torn.

[0042] The frame 1 also has a material moving component for grabbing the workpiece after film tearing and turning the grabbed workpiece over.

[0043] The workpiece after the film is torn can be stably moved out of the feeding channel 23 by the material moving assembly. And the workpiece after being moved out is turned over to facilitate the robot to grab it in the subsequent process.

[0044] The material moving assembly includes a material moving block 34, a slide 1 35, a slide 2 36, a driving member 1 37 and a driving member 2 38. The material moving block 34 is in the shape of a long block and is fixedly connected to the frame 1. The slide 1 35 is connected to the upper part of the material moving block 34. The driving member 1 37 is fixedly connected to the material moving block 34 and the driving member 1 37 can drive the slide 1 35 to translate along the material moving block 34. The slide 2 36 is connected to the slide 1 35. The driving member 2 38 is fixedly connected to the slide 1 35 and the driving member 2 38 can drive the slide 2 36 to translate along the slide 1 35. The slide 1 35 is also connected to a vacuum suction cup 39 for grasping workpieces. A transmission mechanism is provided between the slide 1 35 and the slide 2 36, which can flip the vacuum suction cup 39 when the slide 2 36 moves relative to the slide 1 35.

[0045] The transmission mechanism includes a rotating shaft 40, a transmission gear 41 and a rack 42. The vacuum suction cup 39 includes a frame-shaped body 39a and an adsorption cup 39b fixedly connected to the body 39a. The rotating shaft 40 is fixedly connected to the body 39a and the transmission gear 41 is located in the middle of the rotating shaft 40. The rotating shaft 40 is axially fixed to the slide 1 35 and the rotating shaft 40 can rotate relative to the slide 1 35. The rack 42 is fixedly connected to the slide 2 36 and the rack 42 is engaged with the transmission gear 41.

[0046] The vacuum suction cup 39 is used to grab the workpiece after the film is torn off.

[0047] After the driving member 1 37 drives the slide plate 1 35 and the slide plate 2 36 to move together, the vacuum suction cup 9 and the workpiece after film tearing that is grasped can be stably withdrawn from the feeding channel 23.

[0048] At this time, the second driving member 38 drives the second sliding plate 36 to move independently. Under the action of the transmission gear 41 and the rack 42, the vacuum suction cup 39 is turned over. After the overturn, the workpiece being grasped faces upward, making it convenient for the robot arm of the subsequent process to grasp it.

[0049] In this embodiment, the flip angle of the vacuum suction cup 39 is 180 degrees.

[0050] The above-mentioned feeding channel 23, bracket 24, material tape reel 1 25, material tape reel 2 26, film tearing roller 27 and driving assembly form a film tearing unit. The number of the adsorption disk 39b is two, and the two adsorption disks 39b are respectively connected to the left and right ends of the main body 39a, and each adsorption disk 39b corresponds to a film tearing unit.

[0051] One material transfer assembly corresponds to two film tearing units, which simplifies the overall structure of the machine and appropriately reduces its cost.

[0052] The film tearing mechanism can quickly complete the film tearing operation after the workpiece to be torn moves intermittently along the feeding channel, and has a relatively high degree of automation and high operating efficiency.

[0053] At the same time, the material transfer component corresponds to the coordinated action of the two film tearing units, which not only further improves its operating efficiency, but also makes the workpiece after film tearing easier to be grasped by the robot in subsequent processes, and its discharge stability is also relatively high.

[0054] In addition, the material transfer assembly is arranged adjacent to the corresponding two film tearing units, and the structure of the entire machine is relatively compact, which has high practical value.

[0055] The various technical features of the above-described embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the various technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0056] Those skilled in the art should recognize that the above embodiments are merely intended to illustrate the present invention and are not intended to limit the present invention. As long as they are within the spirit of the present invention, appropriate changes and modifications to the above embodiments fall within the scope of protection claimed by the present invention.

Claims

1. A film tearing mechanism, comprising a frame (1), characterized in that: The machine also includes a feeding channel (23), a bracket (24), a first material belt reel (25), a second material belt reel (26), a film tearing roller (27) and a driving assembly. The feeding channel (23) and the bracket (24) are both fixed to the frame (1). The first material belt reel (25) and the second material belt reel (26) are axially fixed at both ends of the bracket (24). Along the feeding direction of the feeding channel (23), the first material belt reel (25) is located at the second material belt reel (26). ), the film-tearing roller (27) is movably connected to the lower part of the bracket (24), the tape stored at the tape reel one (25) is wound around the film-tearing roller (27) and connected to the tape reel two (26), the above-mentioned driving component is connected to the bracket (24), and in the initial state, the film-tearing roller (27) is located directly above the feeding channel (23), and after the driving component drives the film-tearing roller (27) to swing, the film-tearing roller (27) can move closer to the feeding channel (23).

2. The film tearing mechanism according to claim 1, characterized in that: Along the moving direction of the workpiece at the feeding channel (23), the film tearing roller (27), the second material belt disk (26) and the first material belt disk (25) are arranged from front to back.

3. The film tearing mechanism according to claim 2, characterized in that: A transition roller (28) fixedly connected to the bracket (24) is provided between the second material tape reel (26) and the film tearing roller (27), and the adhesive tape can be wound around the transition roller (28).

4. The film tearing mechanism according to claim 3, characterized in that: The bracket (24) is also provided with a tensioning assembly, and the tensioning assembly and the first material belt reel (25) are respectively located on both sides of the second material belt reel (26).

5. The film tearing mechanism according to claim 4, characterized in that: The tensioning assembly comprises a fixed roller (29) and a movable roller (30), wherein the fixed roller (29) is fixedly connected to the bracket (24), and the movable roller (30) is connected to the bracket (24) via a fastener. The movable roller (30) is adjacent to the fixed roller (29), and a material passage for the adhesive tape to pass through is formed between the fixed roller (29) and the movable roller (30).

6. The film tearing mechanism according to claim 5, characterized in that: The driving assembly comprises a film-tearing cylinder (31), a rocker arm (32) and a roller seat (33); the middle portion of the roller seat (33) is hinged on the bracket (24); the film-tearing roller (27) is movably connected to the outer end of the roller seat (33); the middle portion of the rocker arm (32) is hinged on the bracket (24); the film-tearing cylinder (31) is fixedly connected to the bracket (24); the piston rod of the film-tearing cylinder (31) is opposite to one end of the rocker arm (32); the other end of the rocker arm (32) is located at the inner end of the roller seat (33); and the roller seat (33) has a tendency to swing downward to its inner end and abut against the other end of the rocker arm (32) under the action of its own gravity.

7. The film tearing mechanism according to claim 6, characterized in that: The frame (1) is also provided with a material moving component for grabbing the workpiece after film tearing and turning the grabbed workpiece over.

8. The film tearing mechanism according to claim 7, characterized in that: The material moving assembly comprises a material moving block (34), a slide plate 1 (35), a slide plate 2 (36), a driving member 1 (37) and a driving member 2 (38), wherein the material moving block (34) is in the shape of a long block and is fixedly connected to the frame (1), the slide plate 1 (35) is connected to the upper part of the material moving block (34), the driving member 1 (37) is fixedly connected to the material moving block (34) and the driving member 1 (37) can drive the slide plate 1 (35) to move along the material moving block (34), and the slide plate 2 (3 6) is connected to the slide plate one (35), the above-mentioned driving member two (38) is fixedly connected to the slide plate one (35) and the driving member two (38) can drive the slide plate two (36) to move along the slide plate one (35), and the slide plate one (35) is also connected to a vacuum suction cup (39) for grasping the workpiece, and a transmission mechanism is provided between the slide plate one (35) and the slide plate two (36) to enable the vacuum suction cup (39) to flip when the slide plate two (36) moves relative to the slide plate one (35).

9. The film tearing mechanism according to claim 8, characterized in that: The transmission mechanism includes a rotating shaft (40), a transmission gear (41) and a rack (42); the vacuum suction cup (39) includes a frame-shaped body (39a) and an adsorption cup (39b) fixedly connected to the body (39a); the rotating shaft (40) is fixedly connected to the body (39a) and the transmission gear (41) is located in the middle of the rotating shaft (40); the rotating shaft (40) is axially fixedly connected to the first slide (35); the rack (42) is fixedly connected to the second slide (36) and the rack (42) is meshed with the transmission gear (41).

10. The film tearing mechanism according to claim 9, characterized in that: The above-mentioned feeding channel (23), bracket (24), material belt disc one (25), material belt disc two (26), film tearing roller (27) and driving assembly form a film tearing unit, and the number of the adsorption discs (39b) is two, and the two adsorption discs (39b) are respectively connected to the left and right ends of the body (39a), and each adsorption disc (39b) corresponds to a film tearing unit.

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