Cutting device for plastic straw

Abstract

The utility model belongs to the technical field of plastic straw processing equipment, and particularly relates to a plastic straw cutting device which comprises a machine frame and a linkage rotating shaft transversely rotating on the machine frame, the front end and the rear end of the linkage rotating shaft are sleeved with a front linkage wheel and a rear linkage wheel respectively, and a conveying channel is transversely arranged on the machine frame. The conveying channel comprises a front cutting pipeline and a rear cutting pipeline which are coaxially arranged on the machine frame, and the side wall of the front cutting pipeline is provided with a flat cutting through groove through vertical cutting, and the flat cutting blade can penetrate through the flat cutting through groove. A beveling through groove allowing the beveling blade to penetrate through is formed in the side wall of the rear cutting pipeline through beveling cutting. On the basis of the structure in the prior art, the cutting position between the blade and the corresponding pipeline is reasonably optimized, so that the two sides, located at the notch, of the plastic suction pipe are supported in the pipeline, and the cut notch is smooth, flat and free of burrs.

Description

TECHNICAL FIELD

[0001] The utility model belongs to plastic straw processing equipment technical field, especially point to a kind of cutting device of plastic straw. BACKGROUND

[0002] The cutting device for plastic straw disclosed in the prior Chinese utility model patent (authorized publication number CN220807737U) includes a rack, a linkage shaft is rotatably connected to the rack, a front linkage wheel and a rear linkage wheel are sleeved on the linkage shaft, a conveying channel is formed on the rack along the axial direction of the linkage shaft, an oblique cutting blade is obliquely arranged on the outer ring wall of the front linkage wheel, a flat cutting blade is arranged on the outer ring wall of the rear linkage wheel, the oblique cutting blade and the flat cutting blade can cut the plastic pipe in the conveying channel, and the flat cutting blade corresponds to the middle position of the conveying channel. Furthermore, the conveying channel includes an oblique cutting channel and a flat cutting channel arranged on the rack, the oblique cutting channel and the flat cutting channel are located on the same axis, the end surface of the oblique cutting channel close to the oblique cutting blade is a curved surface that can cooperate with the oblique cutting blade, and the end surface of the flat cutting channel close to the flat cutting blade is a flat surface that can cooperate with the flat cutting blade. That is, the cutting of the plastic straw is realized by the cutting cooperation between the flat cutting blade and the end surface of the flat cutting channel and the cutting cooperation between the oblique cutting blade and the end surface of the oblique cutting channel. However, it is found in actual processing that the plastic straw is in a state of being partially located in the corresponding channel and being partially suspended during cutting, and the cutout obtained by such cutting is rough and has burrs. SUMMARY

[0003] The utility model aims to provide a cutting device for plastic straw, which reasonably optimizes the cutting position between the blade and the corresponding channel, so that the plastic straw is supported in the channel on both sides of the cutout, and the cutout obtained by such cutting is smooth, flat and burr-free.

[0004] The utility model is implemented as follows:

[0005] A cutting device for plastic straw includes a rack and a linkage shaft transversely rotating on the rack, a front linkage wheel and a rear linkage wheel are respectively sleeved on the front and rear ends of the linkage shaft, a conveying channel for conveying a long plastic pipe forward is transversely arranged on the rack, a flat cutting blade and an oblique cutting blade for cutting the plastic pipe in the conveying channel are respectively arranged on the front linkage wheel and the rear linkage wheel, the conveying channel includes a front cutting channel and a rear cutting channel coaxially arranged on the rack, a flat cutting groove through which the flat cutting blade can pass is formed on the side wall of the front cutting channel by vertical cutting, and an oblique cutting groove through which the oblique cutting blade can pass is formed on the side wall of the rear cutting channel by inclined cutting.

[0006] In the cutting device of plastic straw, a material feeding top cover is arranged above the conveying channel and has an arc structure with an opening downward.

[0007] In the cutting device of plastic straw, a slope channel is arranged on the side wall of the rear linkage wheel, and a mounting seat is arranged in the slope channel.

[0008] In the cutting device of plastic straw, a slope channel is arranged on the side wall of the rear linkage wheel, and a mounting seat is arranged in the slope channel.

[0009] In the cutting device of plastic straw, a slope channel is arranged on the side wall of the rear linkage wheel, and a mounting seat is arranged in the slope channel.

[0010] Compared with the prior art, the utility model has the advantages of:

[0011] On the basis of the prior art structure, the cutting position between the blade and the corresponding pipeline is reasonably optimized, so that the plastic straw is supported on the pipeline on both sides of the cutout, and the cutout cut out in this way is smooth, flat and burr-free. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 is Figure 1 A local enlarged view of part A in

[0014] In the figure: 1, rack; 2, linkage shaft; 3, front linkage wheel; 4, rear linkage wheel; 5, beveling blade; 6, front cutting pipeline; 7, rear cutting pipeline; 8, flat cutting channel; 9, beveling channel; 10, material feeding top cover; 11, mounting seat; 12, actuator; 13, locking screw; 14, mounting washer. DETAILED DESCRIPTION

[0015] The utility model will be further described below with specific embodiments, referring to Figures 1-2 :

[0016] The utility model provides a cutting device of plastic straw, including frame 1 and the linkage rotation shaft 2 of transverse rotation in frame 1, and the front and rear ends of linkage rotation shaft 2 are respectively equipped with front linkage wheel 3 and rear linkage wheel 4, and frame 1 is provided with the conveying channel of long strip shape plastic tube forward conveying transversely, and the front linkage wheel 3 and rear linkage wheel 4 are respectively equipped with the flat cutting blade and bevel cutting blade 5 for cutting plastic tube in conveying channel, and the conveying channel includes coaxially arranged front cutting pipeline 6 and rear cutting pipeline 7 in frame 1, and the side wall of front cutting pipeline 6 is formed with flat cutting through slot 8 by vertical cutting, and the side wall of rear cutting pipeline 7 is formed with bevel cutting through slot 9 by inclined cutting.

[0017] The utility model discloses on the basis of prior art structure, the cutting position between the reasonable optimization blade and corresponding pipeline makes plastic straw be located at the both sides of the cutout and be supported in the pipeline, and the cutout cut out like this is smooth, even, no burr.

[0018] Further, in order to avoid plastic straw under the cutting action of flat cutting blade and bevel cutting blade 5 to bounce to the outside of frame 1, the frame 1 between the front cutting pipeline 6 and the rear cutting pipeline 7 is arranged with a material conveying top cover 10 located above the conveying channel, and the cross section of the material conveying top cover 10 is in the form of an arc structure with an opening facing downward.

[0019] In order to enable the bevel cutting blade 5 to be inclined and fixed on the rear linkage wheel 4, an inclined surface through slot is formed on the side wall of the rear linkage wheel 4, an installation seat 11 is arranged in the inclined surface through slot, a clamping gap for clamping the tail end of the bevel cutting blade 5 is formed between the installation seat 11 and the bottom surface of the inclined surface through slot, and the head end of the bevel cutting blade 5 extends out of the inclined surface through slot and corresponds to the position of the bevel cutting through slot 9.

[0020] Meanwhile, in order to drop the plastic straw between the flat cutting blade and the bevel cutting blade 5 and which has been cut into the receiving groove of the casing, a poking member 12 is arranged on the installation seat 11 or the rear linkage wheel 4, the outer end of the poking member 12 is a free end and can abut against the plastic tube in the conveying channel, and the poking member 12 is located at the rear side of the circumferential rotation direction of the bevel cutting blade 5.

[0021] Furthermore, the poking member 12 can be in the form of a rod, and in this embodiment, in order to control the cost of the device, a locking screw 13 penetrates the installation washer 14, the installation seat 11 and is screwed and fixed on the rear linkage wheel 4 from the outside to the inside, the poking member 12 is formed by bending a metal wire, and the inner end of the poking member 12 is wound on the locking screw 13 between the installation washer 14 and the installation seat 11.

[0022] The above embodiment is only one of the preferred embodiments of the present application, and does not limit the scope of the present application, so that: all equivalent changes made according to the shape, structure, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A cutting device for plastic straws, comprising a frame (1) and a linkage shaft (2) that rotates laterally on the frame (1), wherein a front linkage wheel (3) and a rear linkage wheel (4) are respectively fitted at the front and rear ends of the linkage shaft (2), a conveying channel for conveying long strip-shaped plastic straws forward is provided on the frame (1), and a flat cutting blade and a bevel cutting blade (5) for cutting the plastic straws in the conveying channel are respectively provided on the front linkage wheel (3) and the rear linkage wheel (4), characterized in that: The conveying channel includes a front cutting pipe (6) and a rear cutting pipe (7) coaxially mounted on the frame (1). The side wall of the front cutting pipe (6) is vertically cut to form a flat cutting groove (8) through which a flat cutting blade can pass. The side wall of the rear cutting pipe (7) is obliquely cut to form an oblique cutting groove (9) through which an oblique cutting blade (5) can pass.

2. The cutting device for plastic straws according to claim 1, characterized in that: A material conveying top cover (10) is mounted on the frame (1) located between the front cutting pipe (6) and the rear cutting pipe (7), which is located directly above the conveying channel. The cross-section of the material conveying top cover (10) is an arc-shaped structure with the opening facing downwards.

3. The cutting device for plastic straws according to claim 1, characterized in that: The rear linkage wheel (4) has an inclined through groove on its side wall. A mounting seat (11) is provided in the inclined through groove, and a clamping gap is formed between the mounting seat (11) and the bottom surface of the inclined through groove for clamping the tail end of the oblique cutting blade (5). The cutting head end of the oblique cutting blade (5) extends out of the inclined through groove and corresponds to the position of the oblique cutting through groove (9).

4. The cutting device for plastic straws according to claim 3, characterized in that: The mounting base (11) or the rear linkage wheel (4) is provided with a toggle (12). The outer end of the toggle (12) is a free end and can abut against the plastic tube in the conveying channel. The toggle (12) is located on the rear side of the circumferential rotation direction of the oblique cutting blade (5).

5. The cutting device for plastic straws according to claim 4, characterized in that: The locking screw (13) passes through the mounting washer (14) and the mounting base (11) from the outside to the inside and is screwed and fixed on the rear linkage wheel (4). The actuating element (12) is made of bent metal wire, and the inner end of the actuating element (12) is coiled around the locking screw (13) between the mounting washer (14) and the mounting base (11).

Images