Plastic profile heating chipless cutting machine

Abstract

The utility model discloses a plastic profile heating chipless cutting machine, and particularly relates to the technical field of plastic profile production and processing, which comprises a receding groove which is arranged at the top of a rack and divides a conveying mechanism into a front conveying area and a rear conveying area, a support frame is fixedly arranged at the top of the rack, and the top of the support frame is connected with an extrusion plate in a sliding mode through two sliding plates. A heat conduction rod is installed at the bottom of the extrusion plate, a lifting plate slidably connected with the two sliding plates is arranged above the extrusion plate, a plurality of extrusion springs are fixedly installed between the lifting plate and the extrusion plate, positioning mechanisms are installed on the two sides of the extrusion plate, and correction mechanisms are arranged in front of and behind the receding groove. According to the plastic profile cutting device, the heat conduction rod gradually conducts hot cutting on the plastic profile, the heating area is limited to the cutting position of the plastic profile, then the stress exerted on the plastic profile by the heat conduction rod is reduced, the plastic profile is cut open only in a hot melting mode, the service life of the heat conduction rod is prolonged, and the influence on the product quality of the plastic profile is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic profile production and processing, in particular to a plastic profile heating and chip-free cutting machine. Background Art

[0002] Patent publication number CN103317538A relates to a plastic profile heating and chip-free cutting machine, including a frame, an electric heating water tank and a cutting device are arranged on the frame, an electric heating pipe is arranged in the electric heating water tank, and the profile to be cut enters the cutting device after being heated by the electric heating pipe. The plastic profile heating and chip-free cutting machine of the invention has a simple design, and adopts a combination of an electric heating water tank and a cutting device. The water in the electric heating water tank is heated to a temperature that reduces the brittleness of the PVC profile and increases the shaping of the PVC profile. The processed profile then enters the cutting device for cutting, which solves the problem of dust pollution during cutting and affects the health of workers. The plastic profile heating and chip-free cutting machine has a simple and reliable structure, low manufacturing cost, environmental protection and no noise, safe and reliable electrical control, simple operation and convenient maintenance, low machine failure rate and high production efficiency.

[0003] The above technology cannot accurately heat the cut parts of the plastic profile, resulting in a large amount of unnecessary heat energy consumption during the heating process, and will also cause the non-cut parts of the plastic profile to melt under the action of heat, causing the plastic profile to deform and affecting the product quality of the plastic profile. Utility Model Content

[0004] The utility model aims to provide a plastic profile heating and chip-free cutting machine.

[0005] The technical problem solved by the utility model is that the cutting part of the plastic profile cannot be accurately heated, resulting in unnecessary heat energy consumption, which will cause the non-cutting part of the plastic profile to melt, thereby causing the plastic profile to deform and affecting product quality.

[0006] The utility model can be realized through the following technical scheme: it comprises a frame, a conveying mechanism is installed on the frame, a clearance groove which divides the conveying mechanism into a front conveying area and a rear conveying area is opened on the top of the frame, a support frame is fixedly installed at the position of the clearance groove on the top of the frame, slide plates are slidably arranged on both sides of the top of the support frame, extrusion plates are fixedly installed at the bottom ends of the two slide plates at the same time, a heat conducting rod is installed at the bottom of the extrusion plate, a lifting plate which is slidably connected to the two slide plates is provided above the extrusion plate, a plurality of extrusion springs are fixedly installed between the lifting plate and the extrusion plate, positioning mechanisms for fixing the position of plastic profiles are installed on both sides of the extrusion plate, and correction mechanisms are provided before and after the clearance groove.

[0007] A further technical improvement of the utility model is that the positioning mechanism includes a pair of sliding rods that are slidably arranged on the same side of the lifting plate and the extrusion plate, the bottom ends of the pair of sliding rods are fixedly installed with positioning plates, and a tension spring that is sleeved on the outer peripheral wall of the sliding rod is fixedly installed between the top end of the sliding rod and the top of the lifting plate.

[0008] Furthermore, the bottom of the positioning plate is made of rubber material, which increases the friction force on the top of the plastic profile and prevents the plastic profile from slipping at its bottom.

[0009] Furthermore, a fixed-length mechanism is provided in the rear conveying area of ​​the conveying mechanism, which includes a length-limiting plate slidably connected to the support plate and the positioning plate, a threaded rod is threadedly connected to the top of the length-limiting plate, and one end of the threaded rod is rotatably connected to one side of the support plate.

[0010] Furthermore, a plurality of balls are rotatably mounted on the bottom of the length limiting plate. When the length limiting plate abuts against the top of the conveying mechanism in transmission, the balls roll on the top of the length limiting plate to avoid direct contact between the length limiting plate and the conveying mechanism, thereby preventing the length limiting plate from being worn by the conveying mechanism.

[0011] Furthermore, a scale is fixedly provided on the top of the frame at a position of the rear conveying area of ​​the conveying mechanism for accurately locating the adjusted length of the length-limiting plate to adapt to the length of the plastic profile to be cut.

[0012] Furthermore, the correction mechanism includes a pair of rotating plates provided in front and behind the yielding groove and connected to the frame by a rotating rod, a torsion spring sleeved on the outer peripheral wall of the rotating rod is fixed between the rotating plate and the frame, a roller is rotatably installed on one end of the rotating plate adjacent to the conveying mechanism, and the other ends of the two rotating plates are respectively connected to the two ends of the connecting plate for rotation. The setting of the roller helps the plastic profile to squeeze in between the two correction mechanisms.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The present application enables the heat-conducting rod to gradually heat-cut the plastic profile and limits the heating area to the cutting position of the plastic profile, thereby reducing the stress of the heat-conducting rod on the plastic profile, so that the plastic profile can be cut only by hot melting, thereby increasing the service life of the heat-conducting rod and reducing the impact on the quality of the plastic profile product.

[0015] 2. The present application uses two pairs of rotating rods to drive rollers to correct and extrude the plastic profile, thereby correcting the position of the plastic profile and the heat-conducting rod, so that the heat-conducting rod is in an accurate position when cutting the plastic profile, thereby improving the cutting quality.

[0016] 3. The present application limits the length of the plastic profile by rotating the threaded rod to adjust the length of the length-limiting plate, thereby achieving fixed-length cutting of the plastic profile. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0018] Figure 1 It is a front view of the overall structure of the utility model;

[0019] Figure 2 This is a rear view of the overall structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the position of the heat conducting rod of the utility model.

[0021] In the figure: 1. frame; 2. conveying mechanism; 3. scale; 4. give way groove; 5. support frame; 6. lifting plate; 7. extrusion spring; 8. extrusion plate; 9. heat conducting rod; 10. slide plate; 11. slide bar; 12. positioning plate; 13. tension spring; 14. support plate; 15. length limit plate; 16. threaded rod; 17. rotating plate; 18. torsion spring; 19. roller; 20. connecting plate. DETAILED DESCRIPTION

[0022] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0023] See also Figure 1-3 As shown, this embodiment provides a plastic profile heating and chipless cutting machine, including a frame 1, on which a conveying mechanism 2 is installed, the conveying mechanism 2 is divided into a front conveying area and a rear conveying area, the front conveying area and the rear conveying area have the same structure, the front conveying area and the rear conveying area both include a conveyor belt driven by two rotating rollers, a driving motor (not shown in the figure) for driving the rotating rollers to rotate is installed on the frame 1, and scales 3 are provided on both sides of the rear conveying area at the top of the frame 1, and the front conveying area and the rear conveying area are separated by a clearance groove 4 opened on the top of the frame 1, and a support frame 5 is fixedly installed at the position of the clearance groove 4 on the top of the frame 1, and a hot cutting mechanism is installed on the support frame 5, and positioning mechanisms are installed on the front and rear sides of the hot cutting mechanism, and a fixed-length component is installed on the positioning mechanism on the rear side of the hot cutting mechanism, and the plastic profile is fed into the front conveying area of ​​the conveying mechanism 2, cut at the clearance groove 4, and then discharged through the rear conveying area of ​​the conveying mechanism 2.

[0024] A hydraulic cylinder is fixedly installed on the top of the support frame 5, and the output end of the hydraulic cylinder passes through the top of the support frame 5 and is fixedly installed with a lifting plate 6, and a plurality of extrusion springs 7 are fixedly installed at the bottom of the lifting plate 6, and an extrusion plate 8 is fixedly installed at the bottom of the plurality of extrusion springs 7, and a heat-conducting rod 9 is installed at the bottom of the extrusion plate 8, and a heating device (not shown in the figure) for heating the heat-conducting rod 9 is installed on the extrusion plate 8, and a slide plate 10 is slidably provided through both sides of the extrusion plate 8 and the top plate of the support frame 5, and the bottom of the slide plate 10 is fixedly connected to the top of the extrusion plate 8;

[0025] The lifting plate 6 descends and drives the extrusion plate 8 to move downward through a plurality of extrusion springs 7 at the same time, until the heat-conducting rod 9 at the bottom of the extrusion plate 8 abuts against the top of the plastic profile. The extrusion plate 8 is subjected to the effect of the plastic profile that has not been completely melted and cut and squeezes the plurality of extrusion springs 7 upward, so that the plurality of extrusion springs 7 are in a stressed state. The extrusion springs 7 react on the extrusion plate 8 according to their own elastic potential energy, so that the extrusion plate 8 drives the heat-conducting rod 9 to tend to be squeezed downward at the cutting position of the plastic profile, until the heat-conducting rod 9 is gradually squeezed into the give way groove 4, and the cutting area of ​​the plastic profile is cut.

[0026] The positioning mechanism includes a pair of slide bars 11 which are slidably arranged on the same side of the lifting plate 6 and the extrusion plate 8, and a positioning plate 12 is fixedly installed at the bottom ends of the pair of slide bars 11. The bottom of the positioning plate 12 is made of rubber material, and a tension spring 13 which is sleeved on the outer peripheral wall of the slide bar 11 is fixedly installed between the top end of the slide bar 11 and the top of the lifting plate 6;

[0027] Before the heat-conducting rod 9 abuts against the top of the plastic profile, the lifting plate 6 will first drive the two positioning plates 12 to buckle against the front and rear sides of the cutting area of ​​the plastic profile, until the positioning plates 12 abut against the top of the plastic profile, and then the heat-conducting rod 9 abuts against the top of the plastic profile driven by the lifting plate 6. At this time, the lifting plate 6 will move downward on the slide bar 11 and put the tension spring 13 in a stressed state. The tension spring 13 in a stressed state will react to the positioning plate 12 through the slide bar 11, so that the positioning plate 12 is firmly against the top of the plastic profile;

[0028] The fixed length assembly includes a support plate 14 slidably mounted on the top of the positioning plate 12, a limited length plate 15 is slidably arranged on one side of the support plate 14 away from the positioning plate 12, a plurality of balls are rotatably mounted on the bottom of the limited length plate 15, a threaded rod 16 is threadedly connected to the top of the limited length plate 15, and one end of the threaded rod 16 is fixedly connected to one side of the support plate 14;

[0029] Before the positioning plate 12 abuts against the top of the plastic profile, the bottom of the length-limiting plate 15 will first abut against the top of the conveying mechanism 2. At this time, a number of balls at the bottom of the length-limiting plate 15 will rotate at the top of the conveying mechanism 2 during transportation. When one end of the plastic profile abuts against the inner side of the length-limiting plate 15 during transportation, the positioning plate 12 will move down to abut against the top of the plastic profile. At this time, the change in the relative position of the positioning plate 12 and the support plate 14 in the vertical direction is achieved by the relative sliding of the two. Rotating the threaded rod 16 in the clockwise direction will cause the length-limiting plate 15 to move backward along the support plate 14 to increase the distance between the plastic profile and the inner side of the length-limiting plate 15, and vice versa. Reduce the distance between the plastic profile and the inner side of the length-limiting plate 15;

[0030] Correction mechanisms are installed at positions above the front conveying area and the rear conveying area on both sides of the top of the frame 1. The correction mechanisms include two rotating plates 17 arranged on both sides of the support frame 5. The two rotating plates 17 are rotatably connected to the top of the frame 1 through a rotating rod. A torsion spring 18 sleeved on the outer peripheral wall of the rotating rod is fixedly installed between the top of the frame 1 and the bottom of the rotating plate 17. A roller 19 is rotatably installed at one end of the rotating plate 17 adjacent to the conveying mechanism 2. The other ends of the two rotating plates 17 are rotatably connected to the two ends of the connecting plate 20 respectively.

[0031] The two rotating plates 17 are able to rotate at the same frequency through the action of the connecting plate 20. When the side wall of the plastic profile acts on the roller 19, the rotating plate 17 rotates slightly in the clockwise direction, so that the torsion spring 18 is in a stressed state. The stressed torsion spring 18 releases elastic potential energy to the rotating plate 17, so that the rotating plate 17 tends to rotate in the counterclockwise direction, thereby driving the roller 19 to react on the plastic profile, correcting the plastic profile to be aligned with the heat conducting rod 9.

[0032] When the utility model is in use, first observe the scale 3 and adjust the limit plate to the length of the plastic profile to be cut, introduce the plastic profile into the front conveying area of ​​the conveying mechanism 2, then make the limit plate abut against the top of the conveying mechanism 2 and then convey the plastic profile to the rear conveying area of ​​the conveying mechanism 2, until the introduction end of the plastic profile abuts against the inner side of the length-limiting plate 15, and then make the two positioning plates 12 abut against the front and rear of the cutting area of ​​the plastic profile, so that the cutting area of ​​the plastic profile is firmly fixed at the bottom of the heat-conducting rod 9, and then let the heat-conducting rod gradually heat-cut the cutting area of ​​the plastic profile, and then move the lifting plate 6 upward, the lifting plate 6 first drives the heat-conducting rod upward by the first spring that is no longer stressed, until it is separated from the cut surface of the plastic profile, the stress state of the second spring is released and drives the positioning plate 12 to separate from the top of the plastic profile through the sliding rod 11, and finally the positioning plate 12 drives the limit plate to separate from the top of the conveying mechanism 2, so that the cut plastic profile is conveyed to the specified position, and the continuous cutting of the plastic profile can be completed during the reciprocating lifting process of the lifting plate 6.

[0033] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A plastic profile heating chipless cutting machine, comprising a frame (1), characterized in that: The frame (1) is provided with a conveying mechanism (2), the top of the frame (1) is provided with a clearance groove (4) for dividing the conveying mechanism (2) into a front conveying area and a rear conveying area, a support frame (5) is fixedly installed at a position on the top of the frame (1) corresponding to the clearance groove (4), both sides of the top of the support frame (5) are slidably provided with slide plates (10), the bottom ends of the two slide plates (10) are simultaneously fixedly installed with extrusion plates (8), the bottom of the extrusion plates (8) is provided with a lifting plate (6) slidably connected to the two slide plates (10), a plurality of extrusion springs (7) are fixedly installed between the lifting plate (6) and the extrusion plate (8), both sides of the extrusion plate (8) are provided with positioning mechanisms for fixing the position of the plastic profile, and the front and rear of the clearance groove (4) are provided with correction mechanisms.

2. A plastic profile heating chipless cutting machine according to claim 1, characterized in that: The positioning mechanism comprises a pair of slide bars (11) which are slidably arranged on the same side of the lifting plate (6) and the extrusion plate (8), the bottom ends of the pair of slide bars (11) are fixedly mounted with positioning plates (12), and a tension spring (13) which is sleeved on the outer peripheral wall of the slide bars (11) is fixedly mounted between the top ends of the slide bars (11) and the top of the lifting plate (6).

3. A plastic profile heating chipless cutting machine according to claim 2, characterized in that: The bottom of the positioning plate (12) is made of rubber material.

4. A plastic profile heating chipless cutting machine according to claim 2, characterized in that: The rear conveying area of ​​the conveying mechanism (2) is provided with a length-fixing mechanism, the length-fixing mechanism comprising a length-limiting plate (15) slidably connected to the positioning plate (12) by a support plate (14), a threaded rod (16) being threadedly connected through the top of the length-limiting plate (15), and one end of the threaded rod (16) being rotatably connected to one side of the support plate (14).

5. A plastic profile heating chipless cutting machine according to claim 4, characterized in that: A plurality of balls are rotatably mounted on the bottom of the length limiting plate (15).

6. A plastic profile heating chipless cutting machine according to claim 1, characterized in that: A scale (3) is fixedly provided on the top of the frame (1) at a position of the rear conveying area of ​​the conveying mechanism (2).

7. A plastic profile heating chipless cutting machine according to claim 1, characterized in that: The correction mechanism comprises a pair of rotating plates (17) provided in front and behind the yielding groove (4) and rotatably connected to the frame (1) by a rotating rod, a torsion spring (18) sleeved on the outer peripheral wall of the rotating rod is fixedly provided between the rotating plate (17) and the frame (1), a roller (19) is rotatably mounted on one end of the rotating plate (17) adjacent to the conveying mechanism (2), and the other ends of the two rotating plates (17) are rotatably connected to the two ends of the connecting plate (20) respectively.

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