Cutting device for printer part production

Abstract

The utility model discloses a cutting device for printer part production, which comprises a conveying base, a cutter driving mechanism and a clamping component, the cutter driving mechanism comprises two driving plates which are oppositely arranged, inclined kidney-shaped holes are arranged on the two driving plates, a cutter rest with a cutter at the bottom is arranged between the driving plates, and the clamping component is arranged on the conveying base. The tool rest comprises a guide part extending into the inclined kidney-shaped hole, a lifting guide mechanism is arranged on the tool rest, the two driving plates are connected with driving rods, the two driving rods are connected with a linear driving device, and the driving plates are driven by the linear driving device to move so as to drive the tool rest to ascend and descend; guide seats are arranged on the two sides of the conveying base, a sliding seat is arranged between the two guide seats, a movable rod is arranged on the sliding seat in a penetrating mode, a baffle used for blocking injection molding parts is arranged at the top of the movable rod, and a second spring is arranged between the sliding seat and the baffle. The cutting device can automatically realize continuous part cutting operation of the injection molding part with a plurality of parts.

Description

Technical Field

[0001] The utility model belongs to the technical field of printer processing equipment, and specifically relates to a cutting device for producing printer parts, especially an automatic cutting device for cutting between multiple parts formed by one-shot injection molding. Background Technique

[0002] A printer is one of the output devices of a computer, mainly used to print the processing results of the computer on relevant media, and can be divided into laser printers and inkjet printers. When producing printer parts such as plates and decorative parts, in the prior art, they are generally processed by injection molding. For the processing of small injection-molded parts, there are usually multiple cavities in the injection mold. After injection molding, these parts are demolded together and connected by formed plastic connecting rods. Therefore, after demolding, we need to cut and separate these connected parts.

[0003] The cutting devices adopted in the prior art generally include a clamping device and a cutting knife. For example, an automatic cutting device for producing printer parts based on PLC control disclosed in CN213614566U includes a bottom plate. Chutes are opened at positions near both sides of the upper end of the bottom plate. A first telescopic rod is installed inside the chutes. One end of the first telescopic rod is connected to a slider. A clamping plate is installed on the upper end of the slider. Baffles are fixedly arranged at positions near both ends of the right side surface of the clamping plate. The baffles are perpendicularly installed to the clamping plate. Motors are installed at positions near both ends of the left and right sides of the bottom plate. The two clamping plates cooperate with each other. The slider is movably arranged in the chute through the first telescopic rod. The clamping plate is movably installed on the bottom plate through the cooperation of the slider, the first telescopic rod and the chute. The lower end of the clamping plate is closely attached to the upper surface of the bottom plate. When processing with this cutting device, it can only clamp the workpiece through the clamping plate and align the cutting knife with the position to be cut for cutting. When cutting multiple parts on an injection-molded part separately, multiple cutting operations at multiple positions are required. Therefore, it is necessary to manually take out the cut parts after one cutting operation, clamp and position them again, and then perform cutting. After multiple cutting and part-taking operations, each part in the injection-molded part with multiple parts can be taken down separately. The operation is troublesome, continuous automatic cutting cannot be achieved, and the processing efficiency is low. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the utility model provides a cutting device for producing printer parts, which can automatically realize the continuous cutting operation of parts of an injection-molded part with multiple parts, is more convenient to operate, and effectively improves the processing efficiency.

[0005] In order to solve the above technical problems, the utility model is solved by the following technical solutions: a cutting device for producing printer parts, comprising a conveying base, a cutter driving mechanism and a clamping assembly, the cutter driving mechanism comprising two oppositely arranged driving plates, both of which are provided with oblique waist holes, a knife holder with a cutter at the bottom is provided between the driving plates, the knife holder comprises a guide portion extending into the oblique waist hole, a lifting guide mechanism is provided on the knife holder, both of the driving plates are connected with a driving rod, both of the driving rods are connected with a linear driving device, the driving plate is driven to move by the linear driving device to drive the knife holder to lift; a first inclined surface for pressing down a baffle is provided on the side of the driving plate, guide seats are provided on both sides of the conveying base, a sliding seat is provided between the two guide seats, a movable rod is penetrated on the sliding seat, a baffle for blocking the injection molded part is provided on the top of the movable rod, a second spring is provided between the sliding seat and the baffle, and the first inclined surface presses down the baffle so that the cut injection molded part passes over the baffle. When the cutting device for printer parts production is in use, the injection molded part is placed on the conveying base, and is conveyed by the conveying base to abut against the baffle. The injection molded part is then clamped by the clamping assembly, and then the parts on the injection molded part or the connecting rods between the parts are cut off by the cutter to discharge the material. When cutting the injection molded part, the linear drive device drives the drive plate to move, and the oblique waist hole on the drive plate cooperates with the guide part of the tool holder to drive the tool holder to move downward to cut the injection molded part. At the same time, the first inclined surface on the side of the drive plate presses down the baffle. After cutting the injection molded part, the baffle will be pressed down to the bottom of the injection molded part, and the cut injection molded part will pass over the baffle to discharge the material, thereby completing automatic cutting. Therefore, the cutting device can automatically realize the continuous cutting operation of the injection molded part with multiple parts, which is more convenient to operate and effectively improves the processing efficiency.

[0006] In the above technical solution, preferably, the clamping assembly includes a movable part located on both sides of the conveying base, guide rods passing through the movable part are provided on both sides of the conveying base, a first spring is provided on the guide rod to push the movable part toward each other to clamp the injection molded part, a sleeve is provided on the movable part, the drive rod axially passes through the sleeve, a conical drive head matching the sleeve is provided on the drive rod, the conical drive head extends into the sleeve to release the injection molded part, and the conical drive head is separated from the sleeve to clamp the injection molded part. The use of this structure can drive the two movable parts to move toward or away from each other to clamp or release the injection molded part while the linear drive device drives the tool holder to rise and fall. Specifically, when the tool holder moves down, the conical drive head is separated from the sleeve, and the movable part is clamped by the elastic force of the first spring. When the tool holder moves up, the conical drive head extends into the sleeve, and the conical drive head props up the two movable parts to release the injection molded part.

[0007] In the above technical solution, preferably, the clamping assembly includes a guide sleeve rotatably arranged on the tool rest near the baffle side. An air spring with both ends hinged is arranged between the guide sleeve and the tool rest. The air spring elastically limits the guide sleeve on the tool rest. A pressure rod is inserted through the guide sleeve. The bottom of the pressure rod is hinged with a pressing seat. A pressing spring is arranged between the pressing seat and the guide sleeve. A first roller is arranged at the top of the pressure rod. A second inclined surface cooperating with the first roller is arranged on the tool rest. As the tool rest descends, the pressure rod rises relative to the tool rest and presses the injection molded part by the pressing seat. When the first roller abuts against the second inclined surface, the injection molded part is cut off. As the tool rest continues to descend, the second inclined surface guides the guide sleeve to rotate, and laterally pushes the cut-off injection molded part out of the material by the pressing seat. With this structure, not only can the clamping of the injection molded part during the cutting process be realized, but also the cut-off injection molded part can be laterally pushed out of the material during the process of the tool rest continuing to press down after the injection molded part is cut off.

[0008] In the above technical solution, preferably, deburring brush rollers are rotatably arranged on at least one side of the tool rest. A gear is arranged on the rotating shaft of the deburring brush roller. A rack cooperating with the gear is arranged on the conveying base. As the tool rest rises and falls, the gear and the rack cooperate to drive the deburring brush roller to rotate. With this structure, after the cutting tool cuts off the injection molded part, the deburring brush roller can automatically remove the burrs on the cut-off end face.

[0009] In the above technical solution, preferably, a discharge chute is obliquely arranged on the top of the baffle. The discharge chute includes at least two discharge ports. A guide plate controlled by a swing motor is arranged on the upper surface of the discharge chute. The guide plate swings to guide the falling injection molded part to one of the discharge ports. With this structure, the swing motor can be controlled by a PLC controller to swing, and different parts, connecting rods or cut-off surplus materials cut from the injection molded part can be respectively guided to discharge materials, so as to automatically classify each part, connecting rod or cut-off surplus material in different directions.

[0010] In the above technical solution, preferably, the conveying base includes a support frame. A plurality of conveying rollers and a positioning part located below the cutting tool are arranged in the support frame. An opening matching the cutting tool is arranged in the positioning part.

[0011] In the above technical solution, preferably, matching grooves aligned with the first inclined surfaces are arranged on both sides of the baffle. Second rollers are arranged at the bottoms of the matching grooves. With this structure, the cooperation between the first inclined surface and the baffle is smoother.

[0012] In the above technical solution, preferably, second guide grooves are arranged on both of the guide seats. The two driving plates slide in the second guide grooves corresponding to the two guide seats one by one. With this structure, the sliding of the driving plate is more stable.

[0013] Compared with the prior art, the utility model has the following beneficial effects: when this cutting device for printer parts production is in use, an injection molded part is placed on the conveying base and conveyed by the conveying base until it abuts against the baffle. Then, the injection molded part is clamped by the clamping assembly, and then the parts on the injection molded part or the connecting rods between the parts are cut off by the cutter and discharged. When cutting the injection molded part, the linear driving device drives the driving plate to move. The obliquely elongated holes on the driving plate cooperate with the guiding part of the tool holder to drive the tool holder to move downward to cut the injection molded part. At the same time, the first inclined surface on the side of the driving plate presses down the baffle. After cutting the injection molded part, the baffle will be pressed down below the injection molded part, and the cut injection molded part will cross over the baffle and be discharged, thus completing automatic cutting. Therefore, this cutting device can automatically realize the continuous cutting operation of the parts of an injection molded part with multiple parts, which is more convenient to operate and effectively improves the processing efficiency. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model.

[0015] Figure 2 It is a schematic diagram of the structure of the conveying base in an embodiment of the utility model.

[0016] Figure 3 It is a schematic diagram of the structure of a clamping assembly in an embodiment of the utility model.

[0017] Figure 4 It is a schematic diagram of the structure of the conical driving head in an embodiment of the utility model.

[0018] Figure 5 It is a schematic diagram of the structure of the cooperation between the guiding seat and the baffle in an embodiment of the utility model.

[0019] Figure 6 It is a schematic diagram of the structure of another clamping assembly in an embodiment of the utility model.

[0020] Figure 7 It is a schematic diagram of the state when another clamping assembly is pressed down in an embodiment of the utility model.

[0021] Figure 8 It is a schematic diagram of the state when another clamping assembly continues to be pressed down in an embodiment of the utility model.

[0022] Figure 9 It is a schematic diagram of the installation structure of the deburring brush roller in an embodiment of the utility model. Detailed Embodiment

[0023] The following further describes the utility model in detail in conjunction with the drawings and the specific embodiments: Refer to Figures 1 to 9, A cutting device for the production of printer parts, including a conveying base 1, a cutter driving mechanism 2 and a clamping assembly. The conveying base 1 includes a support frame 11. Inside the support frame 11, there are several conveying rollers 12 and a positioning part 13 located below the cutter 23. Inside the positioning part 13, there is an opening 14 matching the cutter 23. The several conveying rollers 12 are driven by belt drive and driven by a driving motor, or the upper surface of the conveying base 1 is inclined for conveying the injection molded parts 10. During processing, the injection molded parts 10 can be abutted against the baffle 34 under the conveyance of the conveying rollers 12.

[0024] The cutter driving mechanism 2 includes two oppositely arranged driving plates 21. Oblique waist-shaped holes 22 are provided on both driving plates 21. A tool holder 24 with a cutter 23 at the bottom is arranged between the driving plates 21. The tool holder 24 includes a guiding part 25 extending into the oblique waist-shaped holes 22. A lifting guiding mechanism 26 is provided on the tool holder 24. The lifting guiding mechanism 26 includes a guiding cylinder. A guiding member is movably inserted into the guiding cylinder, and this guiding member is fixedly connected to the tool holder 24. Both driving plates 21 are connected with driving rods 27. The two driving rods 27 are connected with a linear driving device 28 through a plate body. The linear driving device 28 can be a cylinder or a hydraulic cylinder. The driving plates 21 are driven by the linear driving device 28 to move to drive the tool holder 24 to lift and lower. A first inclined surface 211 for pressing down the baffle 34 is arranged on the side of the driving plate 21. Guide seats 3 are provided on both sides of the conveying base 1. A sliding seat 32 is arranged between the two guide seats 3. A movable rod 33 is inserted through the sliding seat 32. A baffle 34 for blocking the injection molded parts 10 is arranged at the top of the movable rod 33. A second spring 35 is arranged between the sliding seat 32 and the baffle 34. The first inclined surface 211 presses down the baffle 34 so that the cut injection molded parts 10 can cross over the baffle 34. When this cutting device for the production of printer parts is in use, the injection molded parts 10 are placed on the conveying base 1, conveyed by the conveying base 1 to abut against the baffle 34, then the injection molded parts 10 are clamped by the clamping assembly, and then the cutter 23 cuts off the parts on the injection molded parts 10 or the connecting rods between the parts for discharging. When cutting the injection molded parts 10, the linear driving device 28 drives the driving plates 21 to move. The oblique waist-shaped holes 22 on the driving plates 21 cooperate with the guiding parts 25 of the tool holder 24 to drive the tool holder 24 to move downwards to cut off the injection molded parts 10. At the same time, the first inclined surface 211 on the side of the driving plate 21 presses down the baffle 34. After cutting the injection molded parts 10, the baffle 34 will be pressed down below the injection molded parts 10, and the cut injection molded parts 10 will cross over the baffle 34 for blanking, thus completing automatic cutting. This cutting device can automatically realize the continuous splitting operation of the parts of the injection molded parts 10 with multiple parts, which is more convenient to operate and effectively improves the processing efficiency.

[0025] In this embodiment, there are two clamping assemblies. See Figure 3The clamping assembly includes a movable part 4 located on both sides of the conveying base 1, guide rods 41 passing through the movable part 4 are provided on both sides of the conveying base 1, and a first spring 42 is provided on the guide rod 41 to push the movable part 4 toward each other to clamp the injection molded part 10. A sleeve 43 is provided on the movable part 4, and the driving rod 27 axially passes through the sleeve 43. A conical driving head 44 matching the sleeve 43 is provided on the driving rod 27, and the conical driving head 44 extends into the sleeve 43 to loosen the injection molded part 10, and the conical driving head 44 is separated from the sleeve 43 to clamp the injection molded part 10. With this structure, the linear drive device 28 can drive the two movable parts 4 to move toward or away from each other to clamp or release the injection molded part 10 while driving the tool holder 24 to move up and down. Specifically, when the tool holder 24 moves down, the conical drive head 44 is separated from the sleeve 43, and the movable part 4 is clamped by the elastic force of the first spring 42. When the tool holder 24 moves up, the conical drive head 44 extends into the sleeve 43, and the conical drive head 44 spreads the two movable parts 4 to release the injection molded part 10. During the cutting operation, when the cutter 23 cuts off the injection molded part 10 and moves up, the two movable parts 4 release the injection molded part 10, and then the injection molded part 10 is transported by the transport base 1 to abut against the baffle 34.

[0026] See also Figures 6 to 8 , is the working process of another clamping assembly, which includes a guide sleeve 5 rotatably arranged on the tool holder 24 near the baffle 34 side, a gas spring 51 hinged at both ends is arranged between the guide sleeve 5 and the tool holder 24, the gas spring 51 elastically limits the guide sleeve 5 on the tool holder 24, a pressure rod 52 is inserted into the guide sleeve 5, the pressure rod 52 is roughly in a vertical direction, a pressing seat 53 is hinged at the bottom of the pressure rod 52, a rubber layer for increasing friction is arranged at the bottom of the pressing seat 53, a pressing spring 54 is arranged between the pressing seat 53 and the guide sleeve 5, a first roller 55 is arranged on the top of the pressure rod 52, and the tool holder 2 4 is provided with a second inclined surface 56 cooperating with the first roller 55. As the tool holder 24 descends, the pressing rod 52 rises relative to the tool holder 24 and the pressing seat 53 presses the injection molded part 10. When the first roller 55 and the second inclined surface 56 abut against each other, the injection molded part 10 is cut off. The tool holder 24 continues to descend. The second inclined surface 56 guides the guide sleeve 5 to rotate. The pressing seat 53 at the bottom rotates while pressing the cut injection molded part 10. The pressing seat 53 moves toward the baffle 34. Due to the friction between the pressing seat 53 and the injection molded part 10, the pressed seat 53 pushes the cut injection molded part 10 out of the material. The structure can not only realize the clamping of the injection molded part 10 during the cutting process, but also can push the cut injection molded part 10 out of the material laterally during the process of the tool holder 24 continuing to press down after the injection molded part 10 is cut off.

[0027] In this embodiment, see Figure 9, deburring brush rollers 6 are rotatably arranged on both sides of the tool rest 24. A gear 61 is arranged on the rotating shaft of the deburring brush roller 6, and a rack 62 that fits with the gear 61 is arranged on the conveying base 1. As the tool rest 24 moves up and down, the gear 61 cooperates with the rack 62 to drive the deburring brush roller 6 to rotate. With this structure, after the cutting tool 23 cuts off the injection molded part, the deburring brush roller 6 can automatically remove the burrs on the cut end face. The surface of the deburring brush roller 6 is made of nylon brush filaments.

[0028] In this embodiment, a discharge chute 7 is obliquely arranged at the top of the baffle 34. The discharge chute 7 is fixed to the top of the baffle 34 by screws and can be replaced. The discharge chute 7 includes two discharge ports 71, and more discharge ports 71 can be provided according to needs. A guide plate 72 controlled by a swing motor is arranged on the upper surface of the discharge chute 7. The guide plate 72 swings to guide the falling injection molded part 10 towards one of the discharge ports 71. The swing of the swing motor can be controlled by a PLC controller to respectively guide the different parts, connecting rods or cut-off surplus materials cut from the injection molded part 10 for blanking, so as to automatically classify the various parts, connecting rods or cut-off surplus materials in different directions.

[0029] In this embodiment, to make the cooperation between the first inclined surface 211 and the baffle 34 smoother, cooperation grooves 36 aligned with the first inclined surface 211 are arranged on both sides of the baffle 34, and second rollers 37 are arranged at the bottoms of the cooperation grooves 36. When the first inclined surface 211 presses down the baffle 34, it will press on the second rollers 37, making the cooperation between the two smoother.

[0030] In this embodiment, to make the sliding of the driving plate 21 more stable, second guide grooves 310 are arranged on both guide seats 3, and the two driving plates 21 and the two guide seats 3 slide in their corresponding second guide grooves 310 one by one.

[0031] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A cutting device for producing printer parts, comprising a conveying base (1), a cutter driving mechanism (2) and a clamping assembly, characterized in that: The cutter driving mechanism (2) includes two oppositely arranged driving plates (21). Oblique waist-shaped holes (22) are provided on both of the two driving plates (21). A tool holder (24) with a cutter (23) at the bottom is arranged between the driving plates (21). The tool holder (24) includes a guiding portion (25) extending into the oblique waist-shaped holes (22). A lifting guiding mechanism (26) is provided on the tool holder (24). Both of the two driving plates (21) are connected with driving rods (27). The two driving rods (27) are connected with a linear driving device (28). The driving plates (21) are driven to move by the linear driving device (28) to drive the tool holder (24) to lift and lower. A first inclined surface (211) for pressing down the baffle (34) is arranged on the side surface of the driving plate (21). Guide seats (3) are provided on both sides of the conveying base (1). A sliding seat (32) is arranged between the two guide seats (3). A movable rod (33) passes through the sliding seat (32). A baffle (34) for blocking the injection molded part (10) is arranged at the top of the movable rod (33). A second spring (35) is arranged between the sliding seat (32) and the baffle (34). The first inclined surface (211) presses down the baffle (34) so that the cut injection molded part (10) can pass over the baffle (34).

2. The cutting device for producing printer parts according to claim 1, characterized in that: The clamping assembly includes movable parts (4) located on both sides of the conveying base (1). Guide rods (41) passing through the movable parts (4) are provided on both sides of the conveying base (1). A first spring (42) for pushing the movable parts (4) towards each other to clamp the injection molded part (10) is arranged on the guide rods (41). Sleeves (43) are arranged on the movable parts (4). The driving rod (27) axially passes through the sleeves (43). A conical driving head (44) matching with the sleeves (43) is arranged on the driving rod (27). The conical driving head (44) extends into the sleeves (43) to loosen the injection molded part (10), and the conical driving head (44) disengages from the sleeves (43) to clamp the injection molded part (10).

3. The cutting device for producing printer parts according to claim 1, characterized in that: The clamping assembly includes a guide sleeve (5) rotatably arranged on the tool rest (24) near the baffle (34). An air spring (51) with both ends hinged is arranged between the guide sleeve (5) and the tool rest (24). The air spring (51) elastically limits the guide sleeve (5) on the tool rest (24). A pressure rod (52) is inserted into the guide sleeve (5). A pressing seat (53) is hinged to the bottom of the pressure rod (52). A pressing spring (54) is arranged between the pressing seat (53) and the guide sleeve (5). A first roller (55) is arranged at the top of the pressure rod (52). A second inclined surface (56) cooperating with the first roller (55) is arranged on the tool rest (24). As the tool rest (24) descends, the pressure rod (52) rises relative to the tool rest (24) and presses the injection molded part (10) by the pressing seat (53). When the first roller (55) abuts against the second inclined surface (56), the injection molded part (10) is cut off. As the tool rest (24) continues to descend, the second inclined surface (56) guides the guide sleeve (5) to rotate, and the cut injection molded part (10) is laterally pushed out by the pressing seat (53).

4. A cutting device for manufacturing printer parts as described in claim 1, characterized in that: Deburring brush rollers (6) are rotatably arranged on at least one side of the tool rest (24). A gear (61) is arranged on the rotating shaft of the deburring brush roller (6). A rack (62) fitting with the gear (61) is arranged on the conveying base (1). As the tool rest (24) moves up and down, the gear (61) cooperates with the rack (62) to drive the deburring brush roller (6) to rotate.

5. A cutting device for producing printer parts according to claim 1, characterized in that: A discharge chute (7) is inclinedly arranged at the top of the baffle (34). The discharge chute (7) includes at least two discharge ports (71). A guide plate (72) controlled by a swing motor is arranged on the upper surface of the discharge chute (7). The guide plate (72) swings to guide the falling injection molded part (10) to one of the discharge ports (71).

6. The cutting device for producing printer parts according to claim 1, characterized in that: The conveying base (1) includes a support frame (11). A plurality of conveying rollers (12) and a positioning part (13) located below the cutting tool (23) are arranged inside the support frame (11). An opening (14) matching the cutting tool (23) is arranged inside the positioning part (13).

7. The cutting device for producing printer parts according to claim 1, wherein: Fitting grooves (36) aligned with the first inclined surface (211) are arranged on both sides of the baffle (34). Second rollers (37) are arranged at the bottoms of the fitting grooves (36).

8. The cutting device for manufacturing printer parts according to claim 1, characterized in that: Second guide grooves (310) are arranged on both of the guide seats (3). The two driving plates (21) slide in the second guide grooves (310) of the two guide seats (3) in a one-to-one correspondence.

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