Rolling and edge cutting structure for PE film production

Abstract

The utility model relates to a winding and edge cutting structure for PE (polyethylene) film production, which comprises a rack, a guide-in roller arranged on the rack, a reversing roller arranged on the lower side of the guide-in roller, and a pair of cutter mechanisms arranged on the front side of the reversing roller, the lower side of the cutter mechanism is provided with a pair of pressing rod mechanisms which are adjustable in distance and used for being pressed on cut film edge waste materials, the rear side of the reversing roller is provided with a clamping and conveying roller mechanism used for clamping and conveying PE film materials and the film edge waste materials, and the lower side of the reversing roller is provided with a guiding-out roller used for guiding out the PE film materials. The edge cutting structure is beneficial to cutting of the side edges of the PE film and separation of film edge waste materials and PE film materials.

Description

TECHNICAL FIELD

[0001] The utility model relates to a winding and edge cutting structure for PE film production. BACKGROUND

[0002] After the production of PE film is completed, the side edge of the PE film needs to be cut before winding so that the PE film material can meet the specification requirements. However, the current film edge cutting mechanism is inconvenient to adjust the distance, and the film edge waste is easily attached to the PE film material after cutting, causing damage to the PE film material. At the same time, it is inconvenient for the film material to pass through the mechanism for clamping and feeding the film edge waste and the PE film material. SUMMARY

[0003] The utility model aims at providing a winding and edge cutting structure for PE film production, which helps to cut the side edge of the PE film and separate the film edge waste from the PE film material.

[0004] The technical scheme of the utility model is as follows: a winding and edge cutting structure for PE film production, comprising a rack, a guide roller is arranged on the rack, a reversing roller is arranged on the lower side of the guide roller, a pair of distance-adjustable cutting knife mechanisms are arranged on the front side of the reversing roller, a pair of distance-adjustable pressure rod mechanisms for pressing on the film edge waste after cutting are arranged on the lower side of the cutting knife mechanisms, a clamping roller mechanism for clamping and feeding the PE film material and the film edge waste is arranged on the rear side of the reversing roller, and a guide roller for discharging the PE film material is arranged on the lower side of the reversing roller.

[0005] Further, the cutting knife mechanism comprises a first horizontal rod fixed on both sides of the rack, a sliding seat is horizontally and slidingly connected to the first horizontal rod, a fixed seat is installed on the upper side of the sliding seat, and a cutting knife extending obliquely to the lower rear side and adjustable in extension is installed on the fixed seat.

[0006] Further, a horizontal sliding rail is fixed on the upper side of the first horizontal rod, the sliding seat is slidingly matched with the horizontal sliding rail, an extension plate extending downward is arranged on the front side of the sliding seat, and a first hand-tight bolt is screw-connected to the extension plate in the longitudinal direction.

[0007] Further, an insertion slot extending obliquely to the lower rear side is arranged on the fixed seat, an insertion rod is inserted into the insertion slot, the cutting knife is fixed to the lower end of the insertion rod and penetrates the fixed seat, a guide slot penetrating the insertion slot and parallel to the insertion slot is formed on one side of the fixed seat, and a second hand-tight bolt penetrating the guide slot is screw-connected to the insertion rod.

[0008] Further, the fixed seat is provided with two groups of parallel insertion slots corresponding to the cutting knife.

[0009] Further, the pressure rod mechanism comprises a second cross rod fixed on both sides of the frame, a fixing block is sleeved on the second cross rod, a third hand-tight bolt is screwed on the fixing block and locked with the second cross rod, and a pressure rod is fixed on the fixing block and passes through between the cutter mechanism and the reversing roller and is close to the reversing roller.

[0010] Further, the pinch roller mechanism comprises a driving roller rotationally connected with the frame and driven to rotate by the driving mechanism, and a pressure roller is arranged on the upper side of the driving roller and is driven to press on the driving roller by the lifting mechanism.

[0011] Further, the lifting mechanism comprises a crank-shaped plate, shaft portions at both ends of the pressure roller are rotationally connected with one end of the crank-shaped plate, a corner portion of the crank-shaped plate is rotationally connected with the frame through a shaft rod, and the other end of the crank-shaped plate is hingedly connected with a slantingly arranged air cylinder, and the other end of the air cylinder is hingedly connected with the frame.

[0012] Further, third cross rods are arranged on both sides below the leading-out roller and fixed with the frame, a fixing seat capable of being axially adjusted along the third cross rod is installed on the third cross rod, and a guide pipe for film edge waste to pass through is installed on the rear side of the fixing seat.

[0013] Further, the guide pipe is connected with a bellows for guiding the film edge waste to a waste collecting device.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] 1. The edge cutting structure helps to cut the side edges of the PE film and can adjust the interval according to the requirement, and the adjustment is convenient; the setting of the pressure rod mechanism helps to separate the film edge waste from the PE film material, so that the film edge waste is not adhered to the PE film material.

[0016] 2. The pressure roller of the pinch roller mechanism can be lifted to conveniently drive the PE film material and the film edge waste to be conveyed backward; meanwhile, the setting of the guide pipe and the bellows facilitates the output of the film edge waste. DRAWINGS

[0017] Fig. 1 It is a structural schematic view of the utility model;

[0018] Fig. 2 It is a sectional view of the utility model;

[0019] Fig. 3 It is an enlarged view of the cutter mechanism of the utility model;

[0020] In the figure: 1 - lead-in roller 2 - reversing roller 3 - lead-out roller 4 - PE film 5 - PE film material 6 - film edge waste 10 - cutter mechanism 11 - first cross bar 12 - sliding seat 13 - fixed seat 131 - guide groove 14 - cutter 15 - transverse sliding rail 16 - extension plate 17 - first hand bolt 18 - insertion rod 181 - second hand bolt 20 - pressure rod mechanism 21 - second cross bar 22 - fixed block 23 - third hand bolt 24 - pressure rod 30 - pinch roller mechanism 31 - driving roller 32 - pressure roller 33 - elbow plate 34 - shaft 35 - air cylinder or oil cylinder 41 - third cross bar 42 - fixed seat 43 - guide pipe 44 - corrugated pipe. DETAILED DESCRIPTION

[0021] In order to make the above features and advantages of the utility model more obvious, the following specific examples are given, and the detailed description is as follows with reference to the drawings, but the utility model is not limited to this.

[0022] REFERENCE Figs. 1 to 3

[0023] A winding and edge cutting structure for PE film production, comprising a rack, a lead-in roller 1 is rotatably connected to the rack, a reversing roller 2 is rotatably connected to the rack below the lead-in roller, a pair of cutter mechanisms 10 with adjustable spacing are arranged on the front side of the reversing roller, a pair of pressure rod mechanisms 20 with adjustable spacing for pressing on the cut film edge waste are arranged below the cutter mechanisms, a pinch roller mechanism 30 for clamping the PE film material and the film edge waste is arranged on the rear side of the reversing roller, and a lead-out roller 3 is rotatably connected to the rack below the reversing roller and used for leading out the PE film material, so that the PE film material after side edge cutting is sent into the film winding mechanism for winding.

[0024] In this embodiment, the cutter mechanism comprises first cross bars 11 fixed on both sides of the rack, sliding seats 12 are respectively connected to the first cross bars in transverse sliding mode, fixed seats 13 are installed on the upper sides of the sliding seats, cutters 14 extending obliquely downward and adjustable in length are installed on the fixed seats, so as to adjust the length of the cutters extending out.

[0025] In this embodiment, transverse sliding rails 15 are fixed on the upper sides of the first cross bars, the sliding seats are in sliding cooperation with the transverse sliding rails, extension plates 16 extending downward are arranged on the front sides of the sliding seats, first hand bolts 17 are screwed on the extension plates in longitudinal mode, and the sliding seats are locked by rotating and tightening the first hand bolts to abut against the first cross bars.

[0026] In this embodiment, the fixed seat is provided with an oblique downward slot, the plug rod 18 is inserted in the slot, the cutter is fixed at the lower end of the plug rod and penetrates the fixed seat, a guide slot 131 is arranged on one side of the fixed seat and penetrates the slot and is parallel to the slot, the second hand-tight bolt 181 is screwed on the plug rod and penetrates the guide slot, and the locking of the cutter is realized by rotating the second hand-tight bolt.

[0027] In this embodiment, the two groups of parallel slots on the fixed seat are correspondingly provided with cutters, so that the two groups of cutters can be replaced and used.

[0028] In this embodiment, the pressure rod mechanism includes the second cross rod 21 fixed on both sides of the rack, the fixed block 22 is sleeved on the second cross rod, the third hand-tight bolt 23 is screwed on the fixed block and is locked with the second cross rod, the pressure rod 24 is fixed on the fixed block and penetrates the gap between the cutter mechanism and the reversing roller and is close to the reversing roller, the pressure rod is pressed on the edge of the film edge waste close to the PE film material side, so that the film edge waste is separated from the PE film material and is pulled away by a certain distance.

[0029] In this embodiment, in order to clamp and feed the film edge waste and the PE film material, the clamping and feeding roller mechanism includes the driving roller 31 rotationally connected with the rack and driven to rotate by the driving mechanism (for example, the motor drives the driving roller to rotate through the speed reducer), and the pressure roller 32 is arranged on the upper side of the driving roller and is driven by the lifting mechanism to press on the driving roller.

[0030] In this embodiment, in order to control the lifting of the pressure roller, the lifting mechanism includes the elbow-shaped plate 33, the shaft portions at both ends of the pressure roller are rotationally connected with one end of the elbow-shaped plate, the corner portion of the elbow-shaped plate is rotationally connected with the rack through the shaft rod 34, and the shaft rod is fixed with the rack; the other end of the elbow-shaped plate is hingedly connected with the obliquely arranged air cylinder or oil cylinder 35, the other end of the air cylinder is hingedly connected with the rack, so that the pressure roller is lifted by the outward extension of the telescopic rod of the air cylinder or oil cylinder, and the pressure roller is pressed on the upper side of the driving roller when the telescopic rod is retracted.

[0031] In this embodiment, the third cross rod 41 is arranged on both sides below the guide-out roller and is fixed with the rack, the fixed seat 42 is installed on the third cross rod and can be adjusted axially, the guide pipe 43 for the film edge waste to penetrate is installed on the rear side of the fixed seat, and the corrugated pipe 44 for guiding the film edge waste to the waste collecting device is connected with the guide pipe. Thus, the film edge waste can be better guided into the waste collecting device for collection or winding through the cooperation of the guide pipe and the corrugated pipe.

[0032] The distance between the two cutter mechanisms is adjusted in advance, the PE film sent in is wound around the upper side of the guide roller and then sent downward to the reversing roller, the film edge waste (side edge) is cut by the cutter mechanism when close to the reversing roller, and the film edge waste cut is pressed close to one side of the PE film material by the pressing rod of the pressing rod mechanism, so that the film edge waste is separated from the formed PE film material, the film edge waste and the PE film material are wound around the lower side of the reversing roller and then sent between the driving roller and the pressing roller, and the film edge waste and the PE film material are pulled backward by the driving roller and the pressing roller; the PE film material is wound around the guide-out pipe and then sent backward to the film winding mechanism for winding, and the film edge waste is directly sent to the guide roller and then sent to the waste collecting device through the corrugated pipe.

[0033] The above-mentioned "first", "second" and the like are used to limit the parts, and the skilled in the art should know that the "first", "second" are only used for distinguishing the parts, and the above-mentioned words do not have special meanings unless otherwise stated.

[0034] If the utility model discloses or involves mutually fixed and connected parts or structural members, unless otherwise stated, the fixed connection can be understood as detachable fixed connection (for example, bolt or screw connection), and also can be understood as non-detachable fixed connection (for example, riveting, welding), of course, the mutually fixed connection can also be replaced by an integral structure (for example, integrally formed by using casting process) (except that integral forming process is obviously unavailable).

[0035] In addition, the terms used to represent the position relationship or shape in any of the above-mentioned technical solutions of the utility model include the approximate, similar or close state or shape unless otherwise stated.

[0036] Any part provided by the utility model can be assembled by a plurality of individual components, or can be an individual component manufactured by an integral forming process.

[0037] The above-mentioned is only a preferred embodiment of the utility model, and any change and modification made according to the patent application scope of the utility model shall belong to the coverage range of the utility model.

Claims

1. A winding and trimming structure for PE film production, comprising a frame, characterized in that, The rack is provided with an import roller, a reversing roller is arranged below the import roller, a pair of cutting knife mechanisms with adjustable spacing are arranged in front of the reversing roller, a pair of pressure rod mechanisms with adjustable spacing and used for pressing on the film edge waste after cutting are arranged below the cutting knife mechanisms, a pinch roller mechanism used for clamping and feeding PE film materials and film edge waste is arranged at the rear side of the reversing roller, and a lead-out roller used for leading out the PE film materials is arranged below the reversing roller.

2. The winding and slitting structure for PE film production according to claim 1, characterized in that, The cutting knife mechanism comprises first horizontal rods fixed on both sides of the rack, sliding seats are transversely and slidingly connected to the first horizontal rods respectively, fixed seats are arranged on the upper sides of the sliding seats, and cutting knives extending obliquely to the rear lower sides and being telescopically adjustable are arranged on the fixed seats.

3. The winding and slitting structure for PE film production according to claim 2, characterized in that, Horizontal sliding rails are fixed on the upper sides of the first horizontal rods, the sliding seats are slidingly matched with the horizontal sliding rails, and extension plates extending downward are arranged on the front sides of the sliding seats.

4. The winding and slitting structure for PE film production according to claim 2 or 3, characterized in that, Insert slots extending obliquely to the rear lower sides are arranged on the fixed seats, insert rods are arranged in the insert slots, the cutting knives are fixed on the lower ends of the insert rods and pass through the fixed seats, guide grooves passing through the insert slots and being parallel to the insert slots are arranged on one side of the fixed seat, and second hand tight bolts passing through the guide grooves are screwed on the insert rods.

5. The winding and slitting structure for PE film production according to claim 4, characterized in that, The fixed seats are provided with two groups of upper and lower parallel insert slots and correspondingly provided with cutting knives.

6. The winding and slitting structure for PE film production according to claim 1, 2, 3 or 5, characterized in that, The pressure rod mechanism comprises second horizontal rods fixed on both sides of the rack, fixed blocks are sleeved on the second horizontal rods, third hand tight bolts locking the second horizontal rods are screwed on the fixed blocks, and pressure rods with upper ends passing through between the cutting knife mechanism and the reversing roller and close to the reversing roller are fixed on the fixed blocks.

7. The winding and slitting structure for PE film production according to claim 1, 2, 3 or 5, characterized in that, The pinch roller mechanism comprises a driving roller rotationally connected with the rack and driven to rotate by a driving mechanism, and a pressure roller driven to press on the driving roller by a lifting mechanism is arranged on the upper side of the driving roller.

8. The winding and slitting structure for PE film production according to claim 7, characterized in that, The lifting mechanism comprises a crank-shaped plate, shaft portions at both ends of the pressure roller are rotationally connected with one end of a crank-shaped plate, the corner portion of the crank-shaped plate is rotationally connected with the rack through a shaft rod, and obliquely arranged air cylinders are hinged to the other end of the crank-shaped plate, and the other end of the air cylinders is hinged to the rack.

9. The winding and slitting structure for PE film production according to claim 1, characterized in that, Third horizontal rods fixed with the rack are arranged below both sides of the lead-out roller, fixed seats capable of being axially adjusted along the third horizontal rods are arranged on the third horizontal rods, and guide pipes used for the film edge waste to pass through are arranged on the rear sides of the fixed seats.

10. The winding and slitting structure for PE film production according to claim 9, characterized in that, The guide pipes are connected with corrugated pipes used for guiding the film edge waste to the waste collecting equipment.

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