Ultrathin plastic sheet slitting device

Abstract

The utility model discloses an ultrathin plastic sheet slitting device which comprises a lower machine base, a lower conveying belt is arranged on the upper portion in the lower machine base, an upper machine shell is arranged on the upper side of the lower machine base, a lifting machine frame is arranged in the upper machine shell through a lead screw, an upper conveying belt is arranged on the lower side of the lifting machine frame, and a slitting machine base is arranged outside a horizontal conveying discharging port at one end of the lower machine base and one end of the upper machine shell. A lifting plate is arranged on the lower portion in the slitting machine base in an elastic sliding mode, a slitting blade is arranged on the side, with the aperture of the machine shell, of the lifting plate, and a cam driving cutting mechanism is arranged on the upper side of the slitting blade. And the upper conveying belt is arranged in the upper machine shell through the lifting rack and the lead screw, so that the lead screw can drive the upper conveying belt to be adjusted in a lifting mode, the distance between the upper conveying belt and the lower conveying belt is adjusted, and the requirement for horizontal conveying and slitting treatment of the ultrathin plastic sheets can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic sheet slitting, in particular to an ultra-thin plastic sheet slitting device. Background Art

[0002] Plastic sheet refers to the material used to produce thermoformed products such as disposable plastic cups, plates, bowls, dishes, and boxes. It is widely used in packaging for food, vegetables, fruit, beverages, dairy products, industrial parts, and other fields. Ultra-thin plastic sheet has a thickness of 0.1-0.5mm and requires slitting during processing.

[0003] The application number 202122635937.4 in the prior art is a plastic sheet slitting device, which includes a base, support plates are provided on both sides of the top of the base, and electric push rods are fixedly connected to the two sides of the bottom of the support plate, and the bottom end of the electric push rod is fixedly connected to the top of the base. The plastic sheet slitting device drives the plastic sheet to move by rotating the rotating roller and is blocked by the baffle. Since the distance between the slitting knife and the baffle is constant, fixed-length cutting is achieved. The first hydraulic cylinder drives the pressure plate to move down and fix the plastic sheet, and then the electric push rod drives the slitting knife to rise and fall, and the rodless cylinder drives the slitting knife to reciprocate horizontally to cut the plastic sheet, and then the second hydraulic cylinder drives the baffle to descend to release the restriction on the plastic sheet. The rotating roller rotates to drive the cut plastic sheet to unload, and then the second hydraulic cylinder drives the baffle to rise and return to its original position, forming a cycle, thereby improving the slitting efficiency. However, it is inconvenient to adjust the spacing between the upper conveyor belt and the lower transmission belt, which is inconvenient for horizontal transportation and slitting of ultra-thin plastic sheets. Utility Model Content

[0004] The purpose of the utility model is to provide an ultra-thin plastic sheet slitting device to solve the problem in the prior art that it is inconvenient to adjust the distance between the upper conveyor belt and the lower transmission belt, thereby making it inconvenient to horizontally transport and slitting the ultra-thin plastic sheet.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an ultra-thin plastic sheet slitting device, comprising a lower base, a lower conveyor belt is provided on the upper inner part of the lower base, an upper shell is provided on the upper side of the lower base, and a lifting frame is provided inside the upper shell through a lead screw, the lead screw comprises a lead rod arranged on the inner wall at both ends of the upper shell, and one end of the lead rod is transmission-connected to a second motor, the two ends of the lifting frame are respectively threadedly connected to the two lead rods, an upper conveyor belt is provided on the lower side of the lifting frame, a slitting machine base is provided outside the horizontally conveying discharge port of the lower base and one end of the upper shell, a lifting plate is elastically slidingly provided on the lower inner part of the slitting machine base, and a slitting blade is provided on one side of the lifting plate aperture shell, a cam-driven cutting mechanism is provided on the upper side of the slitting blade, and a blade cooling mechanism is also provided on the inner wall of the lower end of the slitting machine base.

[0006] Furthermore, a loading platform and a unloading platform are provided on the upper sides of both ends of the lower machine base, and the height of the loading platform is higher than that of the unloading platform. Inspection ports and inspection covers are provided in the middle of one side of the lower machine base and the upper machine shell.

[0007] Furthermore, the lower conveyor belt and the upper conveyor belt are both rubber conveyor belts, and the lower conveyor belt and the upper conveyor belt are arranged correspondingly up and down.

[0008] Furthermore, the outer sides of the lower conveyor belt and the upper conveyor belt are both provided with sheet pressing ribs, and a plurality of sheet pressing ribs are provided at equal intervals.

[0009] Furthermore, the upper casing and the inner wall of the slitting machine base are both provided with limiting sliding grooves, and the two ends of the lifting plate are elastically slidably arranged in the limiting sliding grooves through guide rods and springs.

[0010] Furthermore, the cam-driven cutting mechanism includes an active cam that is rotatably arranged on the inner wall of the slitting machine base through a transmission shaft, and the active cam is arranged in the middle of the lifting plate, and one end of the transmission shaft is connected to the first motor through a gear set.

[0011] Furthermore, the blade cooling mechanism includes a water-cooled wiping layer arranged on the inner wall of the lower end of the slitting machine base, and one side of the water-cooled wiping layer is connected to the water tank outside the slitting machine base through a water pipe and a flow rate regulating valve.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The utility model uses the lower conveyor belt and the upper conveyor belt provided in the machine base to horizontally clamp, convey and load the plastic sheets, which is convenient for continuous slitting of the plastic sheets. The upper conveyor belt is arranged in the upper housing through a lifting frame and a lead screw, so that the upper conveyor belt can be driven to rise and fall by the lead screw, thereby adjusting the distance between the upper conveyor belt and the lower conveyor belt, which can meet the needs of horizontal conveying and slitting of ultra-thin plastic sheets.

[0014] 2. The utility model is provided with a slitting machine base outside the discharge port for horizontal transmission through the lower machine base and one end of the upper machine shell. A lifting plate is elastically slidably provided at the lower part of the slitting machine base, and a slitting blade is provided on one side of the lifting plate aperture machine shell. A cam-driven cutting mechanism is provided on the upper side of the slitting blade, so that the lifting plate and the slitting blade are driven to rise and fall by the cam-driven cutting mechanism. After a single downward movement, the slitting blade moves upward under the action of the spring, thereby realizing continuous slitting processing of ultra-thin plastic sheets, with strong transmission stability and high slitting efficiency.

[0015] 3. The utility model is also provided with a blade cooling mechanism through the inner wall of the lower end of the slitting machine base. The blade cooling mechanism includes a water-cooled wiping layer arranged on the inner wall of the lower end of the slitting machine base. One side of the water-cooled wiping layer is connected with the water tank outside the slitting machine base through a water pipe and a flow rate regulating valve, so that the water in the water tank is transported to the water-cooled wiping layer through the water pipe and the flow rate regulating valve, which can wipe and cool one side of the raised and lowered slitting blade, and has a good cooling effect, which is convenient for continuous cutting and use of the slitting blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is the main view of the overall internal structure of the utility model;

[0019] Figure 3 This is an enlarged schematic diagram of the structure of point A of the utility model

[0020] Figure 4 This is a schematic diagram of the slitting blade structure of the utility model;

[0021] Figure 5 This is a schematic structural diagram of the cam-driven cutting mechanism of the present utility model.

[0022] In the figure: 1. Lower machine base; 2. Upper machine housing; 3. Lower conveyor belt; 4. Upper conveyor belt; 5. Lifting frame; 6. Pressing rib; 7. Screw; 8. Second motor; 9. Slitting machine base; 10. Unloading platform; 11. Loading platform; 12. Lifting plate; 13. Slitting blade; 14. Guide rod; 15. Limiting slide; 16. Spring; 17. Water tank; 18. Water pipe; 19. Flow rate regulating valve; 20. Water-cooled wiping layer; 21. Discharge port; 22. Inspection port; 23. Inspection cover; 24. Gear set; 25. First motor; 26. Transmission shaft; 27. Active cam. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1, Figure 2 , Figure 3 , Figure 4 , Figure 5 In the embodiment of the present invention, an ultra-thin plastic sheet slitting device includes a lower base 1, a lower conveyor belt 3 is provided on the upper part of the lower base 1, an upper casing 2 is provided on the upper side of the lower base 1, and a lifting frame 5 is provided inside the upper casing 2 through a screw, the screw includes a screw rod 7 arranged on the inner wall of both ends of the upper casing 2, and one end of the screw rod 7 is transmission-connected to a second motor 8, the two ends of the lifting frame 5 are respectively threadedly connected to the two screw rods 7, and an upper conveyor belt 4 is provided on the lower side of the lifting frame 5, so that the plastic sheet can be horizontally clamped, conveyed and loaded for processing, which is convenient for continuous slitting of the plastic sheet, and the upper conveyor belt 4 is arranged in the upper casing 2 through the lifting frame 5 and the screw, so that the upper conveyor belt 4 can be driven to rise and fall by the screw, thereby adjusting the distance between the upper conveyor belt 4 and the lower conveyor belt, which can meet the horizontal conveying and slitting processing of ultra-thin plastic sheets.

[0025] like Figure 1 and Figure 2 As shown, in order to improve the anti-slip property of the outer side of the conveyor belt, the lower conveyor belt 3 and the upper conveyor belt 4 are both rubber conveyor belts, and the lower conveyor belt 3 and the upper conveyor belt 4 are arranged correspondingly up and down, and the outer sides of the lower conveyor belt 3 and the upper conveyor belt 4 are provided with sheeting ribs 6, and a plurality of sheeting ribs 6 are arranged at equal intervals, which is convenient for horizontal clamping and conveying of plastic sheets.

[0026] like Figure 2 、 Figure 3 and Figure 5 As shown, in order to drive the lifting plate 12 and the slitting blade 13 to lift and cut back and forth for cutting, a slitting machine base 9 is provided outside the discharge port 21 for horizontal transmission at one end of the lower machine base 1 and the upper machine shell 2, and a lifting plate 12 is elastically slidably provided at the lower part of the slitting machine base 9, and a slitting blade 13 is provided on one side of the aperture housing of the lifting plate 12, and a cam-driven cutting mechanism is provided on the upper side of the slitting blade 13, and the cam-driven cutting mechanism includes an active cam 27 rotatably arranged on the inner wall of the slitting machine base 9 through a transmission shaft 26, and the active cam 27 is arranged on the upper middle part of the lifting plate 12, and one end of the transmission shaft 26 is connected to the first motor 25 through a gear set 24, so that the first motor 25 of the cam-driven cutting mechanism drives the transmission shaft 26 and the active cam 11 to rotate and adjust, thereby driving the lifting plate 12 and the slitting blade 13 to lift and cut back and forth for adjustment, and after a single downward movement, the slitting blade 13 moves up under the action of the spring 16, thereby realizing continuous slitting of ultra-thin plastic sheets, with strong transmission stability and high slitting efficiency.

[0027] like Figure 3As shown, in order to facilitate the wiping and water-cooling treatment of one side of the lifted slitting blade 13, a blade cooling mechanism is also provided on the inner wall of the lower end of the slitting machine base 9, and the blade cooling mechanism includes a water-cooling wiping layer 20 arranged on the inner wall of the lower end of the slitting machine base 9, and one side of the water-cooling wiping layer 20 is connected to the water tank 17 outside the slitting machine base 9 through a water pipe 18 and a flow rate regulating valve 19, so that the water in the water tank 17 is transported to the water-cooling wiping layer 20 through the water pipe 18 and the flow rate regulating valve 19, so that one side of the lifted slitting blade 13 can be wiped and water-cooled, and the cooling effect is good, which is convenient for the continuous cutting and use of the slitting blade 13, and the upper shell 2 and the inner wall of the slitting machine base 9 are both provided with a limiting slide groove 15, and the two ends of the lifting plate 12 are elastically slidably arranged in the limiting slide groove 15 by the guide rod 14 and the spring 16, which can guide the lifting plate 12 and the slitting blade 13 that are lifted and adjusted, so as to improve the cutting accuracy.

[0028] like Figure 1 and Figure 2 As shown, for operation and maintenance, a loading platform 11 and a unloading platform 10 are provided on the upper sides of both ends of the lower machine base 1, and the height of the loading platform 11 is higher than that of the unloading platform 10. An inspection port 22 and an inspection cover 23 are provided in the middle of one side of the lower machine base 1 and the upper casing 2 to facilitate overall maintenance.

[0029] The working principle and usage process of the present invention are as follows: when in use, the ultra-thin plastic sheet is fed from the loading platform 11 into between the lower conveyor belt 3 and the upper conveyor belt 4, and the conveying motor at one end of the conveyor belt drives the transmission belt to rotate for horizontal conveying and loading processing, and then a slitting machine base 9 is provided on the outside of the discharge port 21 for horizontal transmission through the lower machine base 1 and one end of the upper machine shell 2. A lifting plate 12 is elastically slidably provided at the lower part of the slitting machine base 9, and a slitting blade 13 is provided on one side of the aperture machine shell of the lifting plate 12. A cam-driven cutting mechanism is provided on the upper side of the slitting blade 13, so that the lifting plate 12 and the slitting blade 13 are driven by the cam-driven cutting mechanism to drive the lifting plate 12 and the slitting blade 13 to reciprocate and rise and fall adjustment. After a single downward movement, the slitting blade 13 moves up under the action of the spring 16, thereby realizing continuous slitting processing of the ultra-thin plastic sheet, with strong transmission stability and high slitting efficiency.

[0030] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An ultra-thin plastic sheet slitting device, comprising a lower base (1), characterized in that: A lower conveyor belt (3) is provided at the upper inner portion of the lower machine base (1), an upper machine housing (2) is provided at the upper side of the lower machine base (1), and a lifting frame (5) is provided inside the upper machine housing (2) via a screw, an upper conveyor belt (4) is provided at the lower side of the lifting frame (5), a slitting machine base (9) is provided outside a discharge port (21) for horizontal transmission at one end of the lower machine base (1) and the upper machine housing (2), a lifting plate (12) is elastically slidably provided at the lower inner portion of the slitting machine base (9), and a slitting blade (13) is provided on one side of the aperture housing of the lifting plate (12), a cam-driven cutting mechanism is provided on the upper side of the slitting blade (13), and a blade cooling mechanism is also provided on the inner wall of the lower end of the slitting machine base (9).

2. The ultra-thin plastic sheet slitting device according to claim 1, characterized in that: A loading platform (11) and a unloading platform (10) are further provided on the upper sides of both ends of the lower machine base (1), and the height of the loading platform (11) is higher than that of the unloading platform (10).

3. The ultra-thin plastic sheet slitting device according to claim 1, characterized in that: The lower conveyor belt (3) and the upper conveyor belt (4) are both rubber conveyor belts, and the lower conveyor belt (3) and the upper conveyor belt (4) are arranged correspondingly up and down.

4. The ultra-thin plastic sheet slitting device according to claim 3, characterized in that: The outer sides of the lower conveyor belt (3) and the upper conveyor belt (4) are both provided with sheet pressing ribs (6), and a plurality of sheet pressing ribs (6) are provided at equal intervals.

5. The ultra-thin plastic sheet slitting device according to claim 1, characterized in that: The inner walls of the upper housing (2) and the slitting machine base (9) are both provided with limiting sliding grooves (15), and the two ends of the lifting plate (12) are elastically slidably arranged in the limiting sliding grooves (15) through guide rods (14) and springs (16).

6. The ultra-thin plastic sheet slitting device according to claim 1, characterized in that: The cam-driven cutting mechanism comprises an active cam (27) rotatably arranged on the inner wall of the slitting machine base (9) via a transmission shaft (26), and the active cam (27) is arranged on the upper middle part of the lifting plate (12), and one end of the transmission shaft (26) is connected to a first motor (25) via a gear set (24).

7. The ultra-thin plastic sheet slitting device according to claim 1, characterized in that: The blade cooling mechanism comprises a water-cooling wiping layer (20) arranged on the inner wall of the lower end of the slitting machine base (9), and one side of the water-cooling wiping layer (20) is connected to a water storage tank (17) outside the slitting machine base (9) through a water pipe (18) and a flow rate regulating valve (19).

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