CN212048171U - Film pre-winding cutting device - Google Patents

Abstract

A film pre-winding cutting device belongs to the field of feed machinery equipment. The utility model discloses a material says that the exit end four corners outside slides and is provided with the scute, the scute says that the stack is fixed with the angle cover that extends scute length in material way exit end one side, the long direction edges and corners portion and the long direction limit portion of angle cover are the cutter cutting part, be provided with the telescoping device on two opposite faces that the material was said respectively, the last other end that is connected with the scute of telescoping device, the fodder material piece is extruded the material and is said before the export, the scute says along the material with the angle cover and extends to the export direction, form fixed frame, winding mechanism carries out the film in advance at its periphery, back in the crowded film to the fixed frame periphery of fodder piece, the angle cover withdraws from the film and cuts off the inlayer film, the utility model discloses utilize simple structure to replace the automatic.

Description

Film pre-winding cutting device

Technical Field

The invention relates to a winding and cutting device, in particular to a film pre-winding and cutting device, and belongs to the field of feed machinery.

Background

The existing silage is divided into manual or mechanical baling when baling and packaging, and the mechanical baling mostly adopts a special baling machine, and can be divided into a straw baling machine, a grass baling machine and the like according to the types of raw materials. Generally, the feed is small in size, so that the crushed feed needs to be extruded into a block shape, and then the block is wrapped by a plastic film, which is referred to as a coating process in the industry. When the material blocks are pushed out from the interior of the packaging machine, the material blocks need to be withdrawn and wrapped simultaneously, plastic films are wrapped on the periphery of the whole material blocks, films are pre-wrapped around the material blocks except for two end faces in the advancing direction during wrapping, the pre-wrapped plastic films are still connected to the previous material blocks, a special automatic cutting mechanism needs to be arranged, the plastic films are cut by a cutter when the material blocks slide out, the plastic films wrapped on the periphery of the material blocks are separated from the previous material block wrapping films, or the films are cut and separated before and after each material block is wrapped, so that the completeness of the material blocks is guaranteed, and the material blocks can be conveyed in a subsequent process. However, the packaging machine provided with the dedicated automatic plastic film cutting mechanism has a relatively complex structure, and has a long operation flow, long packaging time, high equipment cost, large volume, high operation cost and relatively low production efficiency of film packaging due to the film mooring device and the film cutting device.

Patent 201821601114.1 discloses a horizontal and vertical cross compound winding full-coating silage compression and coating equipment, and fig. 3 is a schematic side structure diagram of the horizontal and vertical cross compound winding full-coating silage compression and coating equipment. The film coating equipment comprises a storage device 100, a compression device 200, a forming chamber 300 supporting rack 400, a winding mechanism 500, a longitudinal moving mechanism 600, a bottom frame 700, a turntable part 800 and a leading-out part 900, wherein a discharge hole is formed in the lower part of the storage device 100, the forming chamber 300 is arranged below the storage device 100 and is connected with the storage device through the discharge hole, a stirring driving mechanism 101 is arranged on the storage device 100, the compression device 200 comprises a main compression cylinder 201 and a main cylinder push plate 202, a piston rod of the main compression cylinder 201 is fixed with the main cylinder push plate 202, the main cylinder push plate 202 is in sliding fit with an inner cavity of the forming chamber 300, the main compression cylinder 201, the storage device 100 and the forming chamber 300 are fixed on the front part of the bottom frame 700, a baffle extending forwards is fixed at the upper end of the main cylinder push plate 202, the baffle is horizontally arranged along the front-back direction, and, the front end of the baffle can block the discharge hole, and the baffle is used for blocking the discharge hole when the compression device compresses the material after the material at the discharge hole enters the forming chamber 300; the supporting frame 400 comprises a rear supporting cylinder 401, a rear cylinder push plate 402 and a tying and cutting device 403, wherein the rear supporting cylinder 401 is arranged at the rear end of the base frame 700, the rear cylinder push plate 402 and the tying and cutting device 403 are fixed on a piston rod of the rear supporting cylinder 401, the tying and cutting device 403 is used for cutting a film on one side connected with a rectangular material block 11 after material compression, and the end part of the film on the other side is fixed on the tying and cutting device 403; the longitudinal moving mechanism 600 is arranged at the rear part of the base frame 700 and can move back and forth along the base frame 700, 601 is a sliding table, and the winding mechanism 500 and the turntable part 800 are fixed on the longitudinal moving mechanism 600.

The winding mechanism 500 is provided with a rectangular material block 11 coated by a coating, after the rectangular material block 11 is coated by the coating by the rotary table part 800 to complete four surfaces of upper, lower, left and right, the longitudinal moving mechanism 600 is positioned at the front part of the stroke, when the piston rod of the supporting cylinder 401 moves backwards and the piston rod of the main compression cylinder 201 moves forwards, the rotary table part 800 receives the rectangular material block 11, rotates the rectangular material block 11 by 90 degrees, and coats the rotated rectangular material block 11 by the coating winding; the guiding-out part 900 is fixed on the bottom frame 700 and located at the rear part of the molding bin 300, and is used for enabling the rectangular material block 11 to freely fall under gravity and fall onto the guiding-out part 900 when the longitudinal moving mechanism 600 moves backwards and the piston rod of the supporting cylinder 401 moves backwards, so that the rectangular material block 11 is guided out.

Fig. 4 is a schematic view of the end face structure of the film roll winding mechanism. Fig. 5 is an enlarged view of a portion of the film roll winding structure. The winding mechanism 500 is used for coating the film arranged on the winding mechanism 500 with the rectangular material block 11, and the structure is as follows: the winding mechanism 500 comprises a film roll 501, a winding motor 507, a winding bracket 506, a winding frame 508, a pressing guide wheel 509, driving guide wheels 510 and a linkage mechanism 511, wherein the winding bracket 506 is fixed on the longitudinal moving mechanism 600, the left side and the right side of the upper side of the winding bracket 506 are respectively and rotatably provided with one driving guide wheel 510, the two driving guide wheels 510 synchronously rotate through the linkage mechanism 511, the left side and the right side of the lower side of the winding bracket 506 are respectively and rotatably provided with one pressing guide wheel 509, and the winding frame 508 is positioned by the pressing guide wheel 509 and the driving guide wheels 510, so that the winding bracket 506 rotatably supports the winding frame 508; one of the driving guide wheels 510 is driven to rotate by a winding motor 507, the winding motor 507 is fixed on the winding bracket 506, so that the driving guide wheel 510 rotates to drive the winding frame 508 to rotate, and the film roll 501 is arranged on the winding frame 508.

The winding frame 508 is provided with a film roll 501, and the structure is as follows: the winding mechanism 500 further comprises a film roller support 502, a film roller I503, a film roller II 504 and a film roller support shaft 505, the film roller support 502 is rotatably mounted on the film roller support shaft 505, the film roller support shaft 505 is fixed on a winding frame 508, the film roller I503 and the film roller II 504 are rotatably mounted on the film roller support 502, the film roll 501 is rotatably mounted on a film reel which is fixed on the winding frame 508 and is not coaxial with the film roller support shaft 505, a torsion spring is arranged on the film roller support shaft 505 and between the film roller support 502 and the winding frame 508 to realize that the film roller I is attached to the film roll 501, a damper is arranged between the end of the film roller I503 and the film roller support 502 to provide rotation damping for the film roller I503 so that tension exists after the film passes around the film roller I503, the film of the film roll 501 passes around the film roller I503 and then passes around the film roller II 504 to wind out the rectangular winding block 11, a protrusion inclined towards the outer side is arranged on the film roller I503, so that the film of the film roll 501 unwinds without crimping.

The winding mechanism 500 further comprises a third film roller 513, the third film roller 513 is rotatably mounted on the film roller support 502, and the film of the film roll 501 bypasses the first film roller 503.

Fig. 6 is a front view of the schematic view of the tie cutting device. FIG. 7 is a top plan view of the schematic view of the tie cutting device. The tie cutting device 403 comprises tie cutting rods 4031, tie cutting remaining points 4032, tie cutting remaining tiles 403, tie cutting hydraulic cylinders 4034, tie cutting connecting rods 4036 and tie cutting remaining tiles 4033, the rear cylinder push plate 402 is of a square flat plate structure, the square diagonal positions of the rear cylinder push plate are respectively hinged with one tie cutting rod 4031, the two tie cutting rods 4031 are identical in structure and driving mode, the tie cutting rods 4031 are L-shaped, and the driving structure of the tie cutting rods 4031 is as follows: the hinged position of the tie cutting bar 4031 and the rear cylinder push plate 402 is positioned at an L-shaped corner, one L-shaped side of the tie cutting bar 4031 is hinged with one end of a tie cutting connecting rod 4036, the other end of the tie cutting connecting rod 4036 is hinged with a piston rod of a tie cutting hydraulic cylinder 4034, the position of the tie cutting bar 4031 when being opened is controlled, a film coated with a rectangular material block 11 is blocked between the tie cutting bar 4031 and the rear cylinder push plate 402, when the tie cutting bar 4031 is closed, the tie cutting bar 4031 is pressed down, the tie cutting bar and the rear cylinder push plate 402 both have cutting edges, the film is cut at a cutting point 4035, the other L-shaped side of the tie cutting bar 4031 is used for cutting the film, the edge facing to the outer side of the rear cylinder push plate 402 and attached to the rear cylinder push plate 402 is arranged in an arc transition, the concave round corner of a tie cutting tile 4033 fixed on the rear cylinder push plate 402 is adapted, the other L-shaped side of the tie cutting bar 4031 is horizontally arranged along the left-right direction, and seen, if the frame 508 rotates anticlockwise, the hinged position of one tie cutting rod 4031 and the rear cylinder push plate 402 is positioned at the upper left corner of the rear cylinder push plate 402, the circular arc on the other L-shaped edge of the tie cutting rod 4031 is attached and pressed with the concave round corner of the tie cutting tile 4033, and the cut end of the film is tied and retained on the tie cutting point 4032; a tie cutting tile retaining and tie cutting hydraulic cylinder 4034 is fixed on the rear cylinder push plate 402; the cut-out tile is made of rubber or other elastic material or is coated with elastic material.

Wrapping four surfaces of a rectangular material block by adopting a winding mechanism in the circumferential direction, and rotating the rectangular material block by 90 degrees by adopting the rotation of a turntable part to realize the winding of the remaining surfaces of the rectangular material block; the tying and cutting device is adopted, so that the film is cut and tied after the rectangular material block is wound, and a foundation is provided for coating the next rectangular material block; the front oil cylinder and the rear oil cylinder are adopted for pressing, and the front position and the rear position of the rectangular material block can be moved according to the working requirement; and a guiding-out part is adopted, and the coated rectangular material block is guided out by utilizing the inclined plane of the guiding-out part.

As described above, the cutting device 403 is quite complicated in that the film is cut by the cutting blade provided on the cutting bar and the rear cylinder push plate 402.

How to separate the wound film from the equipment in the process of withdrawing the wound film without using a special cutting device is the key point of simplifying the film cutting device.

Disclosure of Invention

Aiming at the problems that the packaging machine provided with a special plastic film automatic cutting mechanism in the prior art has complex structure, long operation flow, long packaging time and high equipment cost, and the packing machine has large volume, high running cost, relatively low production efficiency of film packing and the like, the invention provides a film pre-winding cutting device and a method thereof, the device arranges the pre-winding cutting device at a discharge port, before the material block is pushed out, a plastic film is obliquely lapped on the corner sleeves at the inner side, the outer periphery of a winding frame formed by the four corner sleeves is wound along with the rotation of the film, in the material block pushing process, the inner layer of the plastic film which is tied on the corner sleeve is automatically cut off by the blade part of the corner sleeve, and the plastic film automatic cutting mechanism is replaced by a simple structure, so that the manufacturing cost of equipment can be reduced, the volume of a packaging machine is reduced, and the packaging efficiency is improved.

The technical scheme adopted by the invention is as follows: a film pre-winding cutting device comprises a horizontally arranged rectangular tubular material channel, a main cylinder push plate for pushing out feed along the material channel, an extrusion-molded feed block and a film winding mechanism for wrapping the periphery of the feed block, wherein angle plates are arranged on the outer sides of four corners of the outlet end of the material channel in a sliding manner, angle sleeves for extending the length of the angle plates are fixedly stacked on one side of the outlet end of the material channel, the long-direction edges and the long-direction edges of the angle sleeves for extending the length of the angle plates are film cutting tool edges, two opposite surfaces on the outer side of the material channel are respectively provided with a telescopic device, the telescopic devices are connected with the other end of the angle plates, the feed block is extruded out of the outlet of the material channel, the angle plates and one part of the angle sleeves extend towards the outlet direction along the material channel to form a winding frame for winding the film, the film winding mechanism winds a plurality of layers of films on, the angle plate and the angle sleeve withdraw from the packed film, and the edge part of the film cutting tool cuts off the inner layer film;

further, the telescopic device comprises a hydraulic cylinder, the hydraulic cylinder and the length direction of the material channel are fixed on the side surface of the material channel in the same direction, the end part of a cylinder rod of the hydraulic cylinder faces the outlet side of the material channel, the end part of the cylinder rod of the hydraulic cylinder is fixedly connected to a movable plate in the vertical direction, sliding holes are formed in the two end parts of the movable plate, guide pillars in the horizontal direction are arranged in the sliding holes, and the two ends of the movable plate are respectively;

furthermore, the angle plate and the angle sleeve are in an angle iron shape, an L-shaped movable guide plate of the angle plate and the angle sleeve is arranged at the position of the material channel close to the angle, one surface of the L-shaped movable guide plate is positioned above the thickness direction of the edges of the angle plate and the angle sleeve, and the edge of the other side of the L-shaped movable guide plate is fixed on the outer surface of the material channel;

furthermore, the film cutting tool of the corner sleeve is a serrated structure tool or a hook-shaped tool, the width of the film cutting tool of the corner sleeve is larger than that of the corner plate, and the serrated structure tool or the hook-shaped tool is arranged on the edge of the corner sleeve larger than that of the corner plate;

furthermore, the side length of the end face at one end in the extending direction of the corner sleeve is larger than the side length of the end face at one end which is fixedly overlapped on the corner plate;

furthermore, fixed stop blocks are arranged at the left end and the right end of the guide pillar, a gap is formed between the guide pillar and the side face of the material channel, and the gap is larger than the thickness of the slide rail.

The invention has the following positive effects: angle plates are arranged outside four corners of the outlet end of the material channel in a sliding mode, and angle sleeves for extending the lengths of the angle plates are fixedly stacked on one side of the outlet end of the material channel; the corner sleeve is beneficial to stretching along the length direction of the material channel and winding a sealing film on the corner sleeve, and particularly the long-direction corner part and the long-direction side part of the corner sleeve for extending the length of the corner plate are designed into film cutting tools, so that the inner-layer film wound on the corner sleeve is cut off when a material block exits along the material channel, and the material block film and the film of the material block wrapped in the previous direction are separated from each other; the two opposite surfaces of the material channel are respectively provided with the telescopic devices, the telescopic devices are connected with the other ends of the angle plates, so that the angle plates and part of the angle sleeves extend towards the outlet direction along the material channel before a feed block is extruded out of the outlet of the material channel, a film is wound on a square winding frame formed by the angle plates and the angle sleeves, the feed block is extruded into the film, the pre-wound film is gradually wound on the four surfaces of the winding frame, and after the feed block is extruded into the square winding frame and the film wound on the square winding frame, the angle plates and the angle sleeves withdraw from the packaged film; the end part of the cylinder rod of the hydraulic cylinder is fixedly connected with the movable plate in the vertical direction, the two end parts of the movable plate are provided with the sliding holes, the movable plate is favorable to move along the guide post, in particular, the material channel is provided with the L-shaped movable guide plate of the angle plate and the angle sleeve at the position close to the angle part, one surface of the L-shaped movable guide plate is positioned above the thickness direction of the angle plate and the angle sleeve, the edge part of the other edge of the L-shaped movable guide plate is fixed on the outer surface of the material channel, so that a sliding groove for the angle plate and the angle sleeve to interact along the two length directions can be formed, the deviation of the angle plate and the angle sleeve in the moving process can be prevented, by utilizing the device, the material block and the material block supporting angle sleeve can be wrapped by utilizing the plastic film winding mechanism before the material block is pushed out, when the angle, the purpose is in order to reduce equipment manufacturing cost, reduce baling press's volume, improve packing efficiency.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural view of the corner fitting of the present invention.

Fig. 3 is a schematic side structure view of the horizontal cross composite winding full-coating ensiling compression coating equipment.

Fig. 4 is a schematic end face structure diagram of the film roll winding mechanism.

Fig. 5 is an enlarged view of a portion of the film roll winding structure.

Fig. 6 is a front view of the schematic view of the tie cutting device.

FIG. 7 is a top plan view of the schematic view of the tie cutting device.

In the figure: 1-material channel, 2-hydraulic cylinder, 3-fixed block, 4-guide column, 5-movable plate, 6-L type movable guide plate, 7-angle plate, 8-angle sleeve, 9-film, 10-outlet, 11-material block, 801-film cutting tool, 100-storage device, 101-stirring driving mechanism, 200-compression device, 201-main compression cylinder, 202-main cylinder push plate, 300-forming cabin, 400-supporting frame, 401-rear supporting cylinder, 402-rear cylinder push plate, 403-system cutting device, 4031-system cutting rod, 4032-system cutting point, 4033-system cutting tile, 4034-system cutting hydraulic cylinder, 4035-cutting point, 4036-system cutting connecting rod, 500-winding mechanism, 501-film roll, 4032-system cutting connecting rod, 4033-system cutting tile, 4034-system cutting hydraulic cylinder, 4035-cutting point, 4036-system cutting connecting rod, 500-winding mechanism, 502-film roll support, 503-film roll I, 504-film roll II, 505-film roll support shaft, 506-winding support, 507-winding motor, 508-winding support, 509-pressing guide wheel, 510-driving guide wheel, 511-linkage mechanism, 513-film roll III, 600-longitudinal movement mechanism, 601-sliding table, 603-sliding table oil cylinder, 700-bottom frame, 800-turntable part and 801-turntable tray.

Detailed Description

In order to further explain the present invention in detail, the present invention will be further explained with reference to the drawings. In the following description, the inlet of the channel and the outlet of the channel are located in opposite directions of the channel, respectively.

For the purpose of enhancing understanding of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

It is to be noted that, in the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected" and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; the connection can be mechanical connection or electrical connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The technical scheme adopted by the invention is as follows: a film pre-winding cutting device, figure 1 is the overall structure schematic diagram of the invention, figure 2 is the structure schematic diagram of the corner sleeve of the invention, the film pre-winding cutting device includes the rectangular tube-shaped material channel 1 which is horizontally arranged, the material channel 1 is provided with the extruded feed block 11, the outer side of the four corners of the outlet 10 end of the material channel 1 is provided with the corner plate 7 in a sliding way, the corner plate 7 is fixed with the corner sleeve 8 which extends the length of the corner plate 7 on one side of the outlet 10 end of the material channel 1 in a superposition way, the long direction corner part and the long direction side part of the corner sleeve 8 which extends the length of the corner plate 7 are the cutting edge part of the film cutting tool 801, two opposite surfaces of the material channel 1 are respectively provided with the telescopic device, the telescopic device is connected with the other end of the corner plate 7, before the feed block 11 is extruded out of the outlet 10 of the material channel, the corner plate 7, the film winding mechanism 500 winds a plurality of layers of films on the periphery of the winding frame, after the feed block 11 is extruded to the inner peripheries of the winding frame and the outer periphery of the winding film by the main cylinder push plate 202, the angle plate 7 and the angle sleeve 8 withdraw from the packed film 9, and the inner layer film is cut off by the edge part of the film cutting tool 801.

The telescopic device comprises a hydraulic cylinder 2, the hydraulic cylinder 2 and the material channel 1 are fixed on the side face of the material channel 1 in the same direction of the length direction, the end part of a cylinder rod of the hydraulic cylinder 2 faces the outlet 10 side of the material channel 1, the end part of the cylinder rod of the hydraulic cylinder 2 is fixedly connected to a movable plate 5 in the vertical direction, sliding holes are formed in the two end parts of the movable plate 5, guide pillars 4 in the horizontal direction are arranged in the sliding holes, and the two ends of the movable plate 5 are respectively connected with.

The angle plate 7 and the angle sleeve 8 are in an angle iron shape, the L-shaped movable guide plate 6 of the angle plate 7 and the angle sleeve 8 is arranged at the position, close to the angle part, of the material channel 1, one side of the L-shaped movable guide plate 6 is located above the angle plate 7 and the angle sleeve 8 in the thickness direction, and the edge part of the other side of the L-shaped movable guide plate 6 is fixed on the outer surface of the material channel 1.

The film cutting knife 801 of the corner sleeve 8 is a saw-toothed structure knife or a hook-shaped knife, the width of the film cutting knife 801 of the corner sleeve 8 is larger than that of the corner plate 7, and the saw-toothed structure knife or the hook-shaped knife is arranged on the edge of the corner sleeve 8 which is larger than that of the corner plate 7.

The side length of the end face at one end in the extending direction of the corner sleeve 8 is larger than that of the end face at one end of the angle plate 7, so that the corner sleeve 8 is beneficial to cutting the film 9 when the film 9 is withdrawn.

Fixed stop blocks 3 are arranged at the left end and the right end of the guide pillar 4, a gap is formed between the guide pillar 4 and the side face of the material channel 1, and the gap is larger than the thickness of the sliding rail.

A method for cutting off a film 9, wherein the film is wound on a winding frame formed by an angle plate 7 and an angle sleeve 8 by using a film winding mechanism 500 in the prior art, a material block 11 is extruded in a material channel 10 by using feed extrusion equipment in the prior art, and the cutting off of the film on the inner layer of the winding frame comprises the following steps:

1) the crushed feed is formed in the material channel 1 and extruded into the material channel 1, and along with the pushing of the 11 pieces of the feed out of the material channel 1, hydraulic cylinders of the telescopic devices at the outer sides of the two sides of the material channel 1 push movable plates to drive angle plates 7 and angle sleeves 8 to move towards the end direction of an outlet 10 of the material channel along an L-shaped moving guide plate, and the angle sleeves 8 at the four corners of the outer wall of the material channel 1 form a square winding frame;

2) pre-winding the film 9 on the peripheries of the corner sleeves 8 and the corner plates 7 by using the film winding mechanism 500, wherein the corner sleeves 8, the corner plates 7 and the film 9 form a horizontal film square tube, and the front end of the film 9 at the moment is connected with the tail end of the previous material block 11;

3) the material block 11 is pushed into a square cylinder formed by the corner sleeve 8, the corner plate 7 and the film 9;

4) then, the material block 11 in the material channel 1 is gradually pushed out, the material block 11 expands, the film 9 is extruded and expanded, the hydraulic cylinder 2 of the telescopic device drives the angle plate 7 and the angle sleeve 8 to retract towards the inlet direction of the material channel 10, meanwhile, the angle sleeve film cutting tool 801 is driven to cut off, the film 9 is gradually cut off under the action of the tension of the film 9, the cutting of the film 9 is completed, the two continuously produced material blocks 11 wrapped by the films are separated through the cutting of the film 9, and meanwhile, the films separated from the angle plate and the angle sleeve shrink under the action of the tension to wrap the periphery of the material block 11;

5) the material block is pushed to the rotary table, the rotary table part rotates, the rectangular material block rotates by 90 degrees, the winding mechanism is used for winding the rear end face, and the residual front end face and the residual rear end face of the rectangular material block are wrapped.

The angle plates 7 are arranged outside the four corners of the outlet 10 end of the material channel 1 in a sliding manner, and the angle plates 7 are fixedly superposed with angle sleeves 8 for extending the length of the angle plates 7 on one side of the outlet 10 end of the material channel 1; the material block 11 is beneficial to stretching along the length direction of the material channel 1 and winding a sealing film on the corner sleeve 8, particularly the long-direction corner part and the long-direction edge part of the corner sleeve 8 extending the length of the corner plate 7 are designed into a film cutting tool 801, so that when the material block 11 exits along the direction of the material channel 1, the inner layer film wound on the corner sleeve 8 is cut off, and the film 9 of the material block 11 performing winding and the winding film between the previously wrapped material blocks are separated from each other; the two opposite surfaces of the material channel 1 are respectively provided with the telescopic devices, the telescopic devices are connected with the other end of the angle plate 7, so that a feed block 11 can be extruded out of the front of an outlet 10 of the material channel 1, the angle plate 7 and a part of the angle sleeve 8 extend along the material channel 1 to the direction of the outlet 10, a film 9 is wound on a square winding frame formed by the angle plate and the angle sleeve, the block is extruded into the film, the pre-wound film is gradually wound on the four surfaces of the winding frame, and after the feed block 11 is extruded into the film 9, the angle plate 7 and the angle sleeve 8 are withdrawn from the packed film 9; the end part of a cylinder rod of a hydraulic cylinder 2 is fixedly connected with a movable plate 5 in the vertical direction, two end parts of the movable plate 5 are provided with sliding holes, the movable plate 5 is favorable to move along a guide post 4, in particular, an L-shaped movable guide plate 6 of an angle plate 7 and an angle sleeve 8 is arranged at the position of a material channel 1 close to an angle part, one surface of the L-shaped movable guide plate 6 is positioned above the thickness direction of the edges of the angle plate 7 and the angle sleeve 8, the edge part of the other edge of the L-shaped movable guide plate 6 is fixed on the outer surface of the material channel 1, so that a sliding groove for the angle plate 7 and the angle sleeve 8 to interact along two length directions can be formed, the deviation of the angle plate 7 and the angle sleeve 8 in the moving process can be prevented, by utilizing the device of the invention, a material block 11 can be wrapped by a plastic film winding mechanism 500 and the material block 11 thereof to support the angle sleeve, the simple structure is used for replacing a plastic film automatic cutting mechanism, so that the manufacturing cost of equipment can be reduced, the volume of a packaging machine is reduced, and the packaging efficiency is improved.

Claims (6)

1. The utility model provides a film twines cutting device in advance, includes that the rectangle tube-shape material that the level set up says, says the film winding mechanism of main cylinder push pedal, extrusion's fodder material piece, parcel material piece periphery that releases the fodder along the material, its characterized in that: the feed channel is characterized in that angle plates are arranged on the outer sides of four corners of the outlet end of the feed channel in a sliding mode, angle plates are fixedly stacked on one side of the outlet end of the feed channel and extend angle sleeves with the length of the angle plates, the long-direction edge portions and the long-direction side portions of the angle sleeves with the length of the angle plates are film cutting tool cutting edges, two opposite faces on the outer side of the feed channel are respectively provided with a telescopic device, the telescopic devices are connected with the other ends of the angle plates, a feed block is extruded out of the feed channel and extends towards the outlet direction along the feed channel before the feed block is extruded out of the outlet, a winding frame for winding films is formed, a multi-layer film is wound on the periphery of the winding frame by a film winding mechanism, a main cylinder push plate extrudes the feed block to the.

2. The film pre-winding cutting device according to claim 1, wherein: the telescopic device comprises a hydraulic cylinder, the hydraulic cylinder and the material channel are fixed on the side face of the material channel in the same direction, the end part of a cylinder rod of the hydraulic cylinder faces the outlet side of the material channel, the end part of the cylinder rod of the hydraulic cylinder is fixedly connected to a movable plate in the vertical direction, sliding holes are formed in the two end parts of the movable plate, guide pillars in the horizontal direction are arranged in the sliding holes, and the two ends of the movable plate are respectively connected with the.

3. The film pre-winding cutting device according to claim 1, wherein: the angle plate and the angle sleeve are in an angle iron shape, the material channel is provided with an L-shaped movable guide plate of the angle plate and the angle sleeve at a position close to the angle, one side of the L-shaped movable guide plate is positioned above the thickness direction of the edge of the angle plate and the angle sleeve, and the edge of the other side of the L-shaped movable guide plate is fixed on the outer surface of the material channel.

4. The film pre-winding cutting device according to claim 1, wherein: the film cutting tool of the corner sleeve is a serrated structure tool or a hook-shaped tool, the width of the film cutting tool of the corner sleeve is larger than that of the corner plate, and the serrated structure tool or the hook-shaped tool is arranged on the edge of the corner sleeve, which is larger than that of the corner plate.

5. The film pre-winding cutting device according to claim 1, wherein: the side length of the end face at one end in the extending direction of the corner sleeve is larger than that of the end face at one end fixed on the corner plate in a superposed mode.

6. A film pre-wind cutting apparatus according to claim 2, wherein: fixed stop blocks are arranged at the left end and the right end of the guide pillar, a gap is formed between the guide pillar and the side face of the material channel, and the gap is larger than the thickness of the sliding rail.

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