Sawtooth edge cutting device for extrusion molding strip forming

Abstract

The invention discloses a sawtooth edge cutting device for extrusion molding strip forming. Comprising a rack, a preheating mechanism, a sawtooth edge cutting mechanism, a sawtooth edge grinding mechanism and a waste sawtooth edge discharging hopper, wherein the preheating mechanism is arranged at the feeding end of the rack and is used for preheating an extruded strip; the sawtooth edge cutting mechanism is arranged in the center of the rack and is used for cutting the sawtooth edge of the extruded strip; the sawtooth edge grinding mechanism is arranged at the discharging end of the rack and is used for grinding the sawtooth edge of the extruded strip; sliding return mechanisms are arranged on the portions, located on the two sides of the sawtooth edge cutting mechanism, of the rack, and the sawtooth edge cutting mechanism is connected to the sliding return mechanisms in a sliding mode. The extrusion molding strip is preheated through the preheating mechanism, then the sawtooth edge cutting operation is conducted through the sawtooth edge cutting mechanism, then the sawtooth edge of the extrusion molding strip is ground through the sawtooth edge grinding mechanism, the cut waste sawtooth edge is discharged from the waste sawtooth edge discharging hopper, the device can be integrated with an extrusion molding production line, the automatic sawtooth edge cutting operation is achieved, and the production efficiency is improved. Production cost is reduced, and waste of manpower and material resources is reduced.

Description

Technical Field

[0001] The invention relates to the field of extrusion molding, in particular to a sawtooth edge cutting device for extrusion strip molding. Background Art

[0002] Extrusion molding is also called extrusion in plastic processing. In the process of extrusion, the pressure of hydraulic press is applied to the mold itself, which is called extrusion. It refers to the process in which the material passes through the action between the barrel and the screw of the extruder, is plasticized by heat, and is pushed forward by the screw, and continuously passes through the die to form various cross-section products or semi-finished products. Generally, the edges of extruded strips are smooth, but some products require serrated edges. This situation cannot be formed by simple extrusion. The edges of the extruded strips need to be cut into serrated edges. Due to the material limitations of the extruded strips, they are usually cut by thermal cutting after they are completely hardened. This requires the installation of a thermal cutting machine, which not only increases the cost of the enterprise, but also requires special staff to operate, wasting manpower and material resources. Summary of the invention

[0003] In order to solve one or some technical problems existing in the prior art, the purpose of this application is to provide a sawtooth edge cutting device for extruded strip molding, which can be integrated with the extrusion production line to realize automated sawtooth edge cutting operation, reduce production costs, and reduce waste of manpower and material resources.

[0004] In order to solve the above-mentioned existing technical problems, the purpose of this application is achieved by adopting the following technical solutions: a sawtooth edge cutting device for extruded strip molding, including a frame, a preheating mechanism for preheating the extruded strip at the feeding end of the frame, a sawtooth edge cutting mechanism for cutting the sawtooth edge of the extruded strip at the center of the frame, a sawtooth edge grinding mechanism for grinding the sawtooth edge of the extruded strip at the discharging end of the frame, and a waste sawtooth edge discharge hopper arranged on the frame below the sawtooth edge cutting mechanism, and sliding return mechanisms are provided on both sides of the sawtooth edge cutting mechanism on the frame, and the sawtooth edge cutting mechanism is slidably connected to the sliding return mechanism. The extruded strip is preheated by the preheating mechanism, and then the sawtooth edge cutting operation is performed by the sawtooth edge cutting mechanism, and then the sawtooth edge of the extruded strip is ground by the sawtooth edge grinding mechanism, and the cut waste sawtooth edge is discharged from the waste sawtooth edge discharge hopper, which can be collected and recycled. The device can be integrated with the extrusion production line to realize automatic sawtooth edge cutting operation.

[0005] Preferably, the preheating mechanism comprises a bracket arranged on the frame, a preheating box arranged on the bracket for the extruded strip to pass through, and a heater arranged on the preheating box. The heater heats so that the preheating box forms a heating chamber for heating the extruded strip, ensuring that the extruded strip passing through is heated evenly and has a good cutting effect.

[0006] Preferably, the sliding return mechanism comprises a bottom plate arranged on the frame, a slide bar arranged on the bottom plate, a support block arranged on the bottom plate and connected to both ends of the slide bar, and a slider slidably connected to the slide bar, the sawtooth edge cutting mechanism is connected to the slider, a return spring is sleeved on the slide bar between the slider and the support block, and the return springs on both sides of the sawtooth edge cutting mechanism are respectively arranged on the front and rear sides of the sawtooth edge cutting mechanism. When the sawtooth edge cutting mechanism clamps and cuts the extruded strip, the extruded strip drives the sawtooth edge cutting mechanism to move forward and compress the return spring on the front side. After the cutting is completed, the sawtooth edge cutting mechanism is reset under the action of the return spring on the front side, and the return spring on the rear side plays a role of buffering and limiting. The sawtooth edge cutting mechanism reciprocates to realize the continuous sawtooth edge cutting operation of the extruded strip.

[0007] Preferably, the sawtooth edge cutting mechanism comprises a support plate arranged on a slider, a sawtooth die arranged on the support plate for the extruded strip to pass through, and a support rod arranged on the support plate at both sides of the sawtooth die, a fixed plate is arranged on the top of the support rod, a cylinder is arranged on the fixed plate, a connecting plate is slidably connected to the support rod below the fixed plate, the connecting plate is connected to the piston rod of the cylinder, and a cutter head is arranged at the bottom of the connecting plate to cooperate with the sawtooth die to cut the sawtooth edge of the extruded strip. The piston rod of the cylinder pushes the connecting plate down along the support rod, driving the cutter head to press down, the sawtooth die clamps the extruded strip, the cutter head cooperates with the sawtooth die to cut the sawtooth edge of the extruded strip, and the entire sawtooth edge cutting mechanism moves forward; after the cutting is completed, the cylinder piston rod returns, the sawtooth die and the cutter head loosen, and the sawtooth edge cutting mechanism is reset under the action of the return spring on the front side.

[0008] Preferably, both upper and lower sides of the connecting plate are provided with limiting sleeves which are slidably connected to the support rods, so as to limit the telescopic length of the piston rod of the cylinder and avoid damage to components due to collision.

[0009] Preferably, a buffer spring is sleeved on the piston rod of the cylinder between the connecting plate and the fixing plate. When the piston rod of the cylinder contracts, it acts as a buffer for the connecting plate to avoid direct collision and damage to components.

[0010] Preferably, the sawtooth edge grinding mechanism includes a support plate arranged on the bottom plate, a baffle plate arranged on the support plate, and a sawtooth edge grinding plate arranged on the baffle plate for grinding the sawtooth edge of the extruded strip. The sawtooth edge is ground to grind the sharp corners into an arc to avoid scratching the workers during transportation.

[0011] Preferably, the support plate is provided with a sliding plate, the sliding plate is provided with a rotating drum and an adjusting column on both sides of the extruded strip, the sliding plate is provided with a sliding groove, and the adjusting column is slidably connected to the sliding groove. The forward direction of the extruded strip is limited to prevent the extruded strip from deviating; the adjusting column can adjust the position, which is suitable for the production of extruded strips of different widths.

[0012] Preferably, an L-shaped plate is provided on the frame at the side of the drum, and a sensor corresponding to the drum is provided on the L-shaped plate. The width of the extruded strip that has completed the serration is reduced. If the serration operation is not completed in the previous sequence, the extruded strip will get stuck in the drum. Once the drum stops rotating, the sensor senses it and sends a signal to the controller, and the controller controls the production line to stop operation for maintenance, thereby avoiding waste, reducing material resource waste, and improving production efficiency.

[0013] Preferably, the waste serrated edge discharging hopper is provided with a plurality of guide grooves to ensure the smooth sliding of the waste serrated edges, so as to facilitate collection and recycling.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The serrated edge cutting device for extruded strip molding using the above technical solution, the extruded strip is preheated by a preheating mechanism, and then the serrated edge cutting operation is performed by the serrated edge cutting mechanism, and then the serrated edge of the extruded strip is ground by the serrated edge grinding mechanism, and the cut waste serrated edges are discharged from the waste serrated edge discharge hopper and can be recycled after being collected. The device can be integrated with the extrusion production line to realize automated serrated edge cutting operation, reduce production costs, and reduce waste of manpower and material resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention;

[0017] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0018] In the figure: 1. frame; 2. bottom plate; 3. support block; 4. slide bar; 5. slider; 6. return spring; 7. support plate; 8. bracket; 9. preheating box; 10. heater; 11. serrated mold; 12. support rod; 13. limit sleeve; 14. connecting plate; 15. fixing plate; 16. buffer spring; 17. cylinder; 18. cutter head; 19. L-shaped plate; 20. sensor; 21. sliding plate; 22. rotating drum; 23. adjusting column; 24. baffle; 25. serrated edge grinding plate; 26. waste serrated edge discharge hopper; 27. guide groove; 28. support plate. DETAILED DESCRIPTION

[0019] Below, the present application is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0020] In the description of the present application, it should be understood that the terms "up", "down", "left", "right", etc., indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present application.

[0021] like Figure 1 As shown, the sawtooth edge cutting device for extruded strip molding includes a frame 1, a preheating mechanism for preheating the extruded strip at the feeding end of the frame 1, a sawtooth edge cutting mechanism for cutting the sawtooth edge of the extruded strip at the center of the frame 1, a sawtooth edge grinding mechanism for grinding the sawtooth edge of the extruded strip at the discharging end of the frame 1, and a waste sawtooth edge discharge hopper 26 arranged on the frame 1 below the sawtooth edge cutting mechanism. Both sides of the sawtooth edge cutting mechanism on the frame 1 are provided with sliding return mechanisms, and the sawtooth edge cutting mechanism is slidably connected to the sliding return mechanism. The extruded strip is preheated by the preheating mechanism, and then the sawtooth edge cutting operation is performed by the sawtooth edge cutting mechanism, and then the sawtooth edge of the extruded strip is ground by the sawtooth edge grinding mechanism. The cut waste sawtooth edge is discharged from the waste sawtooth edge discharge hopper 26, and can be collected and recycled. The device can be integrated with the extrusion production line to realize automatic sawtooth edge cutting operation.

[0022] The preheating mechanism comprises a bracket 8 arranged on the frame 1, a preheating box 9 arranged on the bracket 8 for the extruded strip to pass through, and a heater 10 arranged on the preheating box 9. The heater 10 heats so that the preheating box 9 forms a heating chamber for heating the extruded strip, ensuring that the extruded strip passing through is evenly heated and has a good cutting effect.

[0023] The sliding return mechanism comprises a bottom plate 2 arranged on the frame 1, a slide bar 4 arranged on the bottom plate 2, a support block 3 arranged on the bottom plate 2 and connected to both ends of the slide bar 4, and a slide block 5 slidably connected to the slide bar 4. The sawtooth edge cutting mechanism is connected to the slide block 5. A return spring 6 is sleeved on the slide bar 4 between the slide block 5 and the support block 3. The return springs 6 on both sides of the sawtooth edge cutting mechanism are respectively arranged on the front and rear sides of the sawtooth edge cutting mechanism. When the sawtooth edge cutting mechanism clamps and cuts the extruded strip, the extruded strip drives the sawtooth edge cutting mechanism to move forward and compress the return spring 6 on the front side. After the cutting is completed, the sawtooth edge cutting mechanism is reset under the action of the return spring 6 on the front side, and the return spring 6 on the rear side plays a role of buffering and limiting. The sawtooth edge cutting mechanism reciprocates to realize the continuous sawtooth edge cutting operation of the extruded strip.

[0024] The serrated edge cutting mechanism includes a support plate 7 arranged on a slider 5, a serrated die 11 arranged on the support plate 7 for the extruded strip to pass through, and a support rod 12 arranged on the support plate 7 and located on both sides of the serrated die 11. A fixed plate 15 is provided on the top of the support rod 12, and a cylinder 17 is provided on the fixed plate 15. A connecting plate 14 is slidably connected to the support rod 12 below the fixed plate 15, and the connecting plate 14 is connected to the piston rod of the cylinder 17. A cutter head 18 is provided at the bottom of the connecting plate 14 for cooperating with the serrated die 11 to cut the serrated edge of the extruded strip. The piston rod of the cylinder 17 pushes the connecting plate 14 downward along the support rod 12, driving the cutter head 18 to press down, the serrated die 11 clamps the extruded strip, and the cutter head 18 cooperates with the serrated die 11 to cut the serrated edge of the extruded strip, and the entire serrated edge cutting mechanism moves forward; after the cutting is completed, the piston rod of the cylinder 17 returns, the serrated die 11 and the cutter head 18 loosen, and the serrated edge cutting mechanism is reset under the action of the return spring 6 on the front side.

[0025] The upper and lower sides of the connecting plate 14 are provided with limit sleeves 13 that are slidably connected to the support rod 12. The telescopic length of the piston rod of the cylinder 17 is limited to avoid collision and damage to components. The piston rod of the cylinder 17 is sleeved with a buffer spring 16 between the connecting plate 14 and the fixed plate 15. When the piston rod of the cylinder 17 is retracted, it plays a buffer role on the connecting plate 14 to avoid direct collision and damage to components.

[0026] The sawtooth edge grinding mechanism includes a support plate 28 arranged on the bottom plate 2, a baffle plate 24 arranged on the support plate 28, and a sawtooth edge grinding plate 25 arranged on the baffle plate 24 for grinding the sawtooth edge of the extruded strip. The sawtooth edge is ground to grind the sharp corner into an arc to avoid scratching the staff during transportation.

[0027] The support plate 28 is provided with a sliding plate 21, and the sliding plate 21 is provided with a rotating drum 22 and an adjusting column 23 on both sides of the extruded strip. The sliding plate 21 is provided with a sliding groove, and the adjusting column 23 is slidably connected to the sliding groove. The forward direction of the extruded strip is limited to prevent the extruded strip from deviating; the adjusting column 23 can adjust the position, which is suitable for the production of extruded strips of different widths.

[0028] The frame 1 is provided with an L-shaped plate 19 at the side of the drum 22, and the L-shaped plate 19 is provided with a sensor 20 corresponding to the drum 22. The width of the extruded strip that has completed the sawtooth cutting is reduced. If the sawtooth cutting operation is not completed in the previous sequence, the extruded strip will get stuck in the drum 22. Once the drum 22 stops rotating, the sensor 20 senses it and sends a signal to the controller, and the controller controls the production line to stop operation for maintenance, thereby avoiding waste, reducing material resource waste, and improving production efficiency.

[0029] The waste sawtooth edge discharging hopper 26 is provided with a plurality of guide grooves 27 to ensure the smooth descent of the waste sawtooth edge for easy collection and recycling.

[0030] like Figure 2 As shown, combined Figure 1 , a discharge port a is provided below the sawtooth die 11, and a discharge port b is provided in the center of the bottom plate 2. The waste sawtooth edges cut from the sawtooth die 11 are discharged from the discharge port a and arrive on the support plate 7. During the cutting process, the sawtooth edge cutting mechanism will complete a process of forward movement and resetting, which will drive the waste sawtooth edges to shift. Due to the effect of inertia, the waste sawtooth edges will fall to the discharge port b, and then reach the waste sawtooth edge discharge hopper 26 from the discharge port b for discharge. A recycling bag can be provided at the end of the waste sawtooth edge discharge hopper 26 to recycle the waste sawtooth edges and reduce production costs. A push-out plate can also be provided on the side of the discharge port a on the bottom plate 2 to improve the discharge effect of the waste sawtooth edges and avoid accumulation.

[0031] The above-mentioned implementation modes are only preferred implementation modes of the present application and cannot be used to limit the scope of protection of the present application. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present application shall fall within the scope of protection required by the present application.

Claims

1. A sawtooth edge cutting device for extruded strip forming, characterized in that: The invention comprises a frame (1), a preheating mechanism arranged at the feeding end of the frame (1) for preheating an extruded strip, a sawtooth edge cutting mechanism arranged at the center of the frame (1) for cutting the sawtooth edges of the extruded strip, a sawtooth edge grinding mechanism arranged at the discharging end of the frame (1) for grinding the sawtooth edges of the extruded strip, and a waste sawtooth edge discharge hopper (26) arranged on the frame (1) below the sawtooth edge cutting mechanism, wherein sliding return mechanisms are arranged on both sides of the sawtooth edge cutting mechanism on the frame (1), and the sawtooth edge cutting mechanism is slidably connected to the sliding return mechanisms.

2. The sawtooth edge cutting device for extruded strip molding according to claim 1, characterized in that: The preheating mechanism comprises a support (8) arranged on the frame (1), a preheating box (9) arranged on the support (8) for the extruded strip to pass through, and a heater (10) arranged on the preheating box (9).

3. The sawtooth edge cutting device for extruded strip molding according to claim 1, characterized in that: The sliding return mechanism comprises a bottom plate (2) arranged on the frame (1), a slide bar (4) arranged on the bottom plate (2), a support block (3) arranged on the bottom plate (2) and connected to both ends of the slide bar (4), and a slide block (5) slidably connected to the slide bar (4); the saw tooth edge cutting mechanism is connected to the slide block (5); a return spring (6) is sleeved on the slide bar (4) and located between the slide block (5) and the support block (3); and the return springs (6) on both sides of the saw tooth edge cutting mechanism are respectively arranged on the front and rear sides of the saw tooth edge cutting mechanism.

4. The sawtooth edge cutting device for extruded strip molding according to claim 3, characterized in that: The sawtooth edge cutting mechanism comprises a support plate (7) arranged on a slider (5), a sawtooth die (11) arranged on the support plate (7) for the extruded strip to pass through, and a support rod (12) arranged on the support plate (7) and located on both sides of the sawtooth die (11). A fixing plate (15) is provided on the top of the support rod (12), a cylinder (17) is provided on the fixing plate (15), a connecting plate (14) is slidably connected to the support rod (12) below the fixing plate (15), the connecting plate (14) is connected to the piston rod of the cylinder (17), and a cutter head (18) is provided at the bottom of the connecting plate (14) for cooperating with the sawtooth die (11) to cut the sawtooth edge of the extruded strip.

5. The sawtooth edge cutting device for extruded strip molding according to claim 4, characterized in that: The upper and lower sides of the connecting plate (14) are both provided with limiting sleeves (13) which are slidably connected to the supporting rod (12).

6. The sawtooth edge cutting device for extruded strip molding according to claim 4, characterized in that: A buffer spring (16) is sleeved on the piston rod of the cylinder (17) between the connecting plate (14) and the fixing plate (15).

7. The sawtooth edge cutting device for extruded strip molding according to claim 3, characterized in that: The sawtooth edge grinding mechanism comprises a support plate (28) arranged on the bottom plate (2), a baffle plate (24) arranged on the support plate (28), and a sawtooth edge grinding plate (25) arranged on the baffle plate (24) for grinding the sawtooth edge of the extruded strip.

8. The sawtooth edge cutting device for extruded strip molding according to claim 7, characterized in that: The support plate (28) is provided with a sliding plate (21), and the sliding plate (21) is provided with a rotating cylinder (22) and an adjusting column (23) on both sides of the extruded strip, and the sliding plate (21) is provided with a sliding groove, and the adjusting column (23) is slidably connected to the sliding groove.

9. The sawtooth edge cutting device for extruded strip molding according to claim 8, characterized in that: An L-shaped plate (19) is provided on the frame (1) at the side of the rotating drum (22), and a sensor (20) corresponding to the rotating drum (22) is provided on the L-shaped plate (19).

10. The sawtooth edge cutting device for extruded strip molding according to claim 1, characterized in that: The waste sawtooth edge discharge hopper (26) is provided with a plurality of guide grooves (27).

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