CN115417204A - Plastic film winding machine for plastic industry production - Google Patents

Abstract

The invention belongs to the technical field of plastic industry production, and particularly relates to a plastic film winding machine for plastic industry production, which comprises a mounting plate, wherein the outer wall of one side of the mounting plate is rotatably connected with a barrel, two groups of transversely distributed openings are formed in the barrel, a plurality of openings in the same group are distributed in an annular array, two groups of bottom supports are arranged in the barrel, a plurality of bottom supports in the same group are distributed in an annular array, the plurality of bottom supports and the plurality of openings in the same group are in the same vertical plane, the top of each bottom support is rotatably connected with two supporting plates, the tops of two adjacent supporting plates on the two adjacent bottom supports are rotatably connected with a same contact plate, the cross section of the contact plate is arranged in an arc shape, a plurality of uniformly distributed tension springs are fixedly connected between the two adjacent bottom supports, and a tension mechanism is arranged in the barrel. According to the invention, the bottom support is propped open through the first supporting ring in the shape of a circular truncated cone, the supporting plate on the bottom support moves outwards, and the winding drum is propped and fixed through the plurality of contact plates, so that the winding drums with different inner diameters can be fixed.

Description

A plastic film winding machine for plastic industry production

technical field

The invention relates to the technical field of plastic industry production, in particular to a plastic film winding machine for plastic industry production.

Background technique

In the receiving part of the coil processing production line, the raw materials are mechanically wound into coils, which are widely used in paper rolls, cloth rolls, plastic rolls, and metal coil processing production lines. The design is diversified according to the actual process requirements. The common ones are Simple winders, hydraulic winders, and winders generally have strict requirements on the inner diameter of the roll, the outer diameter of the roll, the thickness and width of the roll material.

In the production of the plastic industry, the film needs to be wound up on the sleeve by a winder after processing, but most of the shafts used by the existing winder to drive the sleeve to rotate can only be sleeved with a sleeve of one specification, and cannot Effectively fix sleeves with different internal diameter specifications, so corresponding improvements are made to address this problem.

Contents of the invention

Based on the technical problem that existing winders cannot fix sleeves of different specifications, the invention proposes a plastic film winder for plastic industry production.

A plastic film winder for the plastic industry proposed by the present invention comprises a mounting plate, the outer wall of one side of the mounting plate is rotatably connected to a cylinder body, and two groups of transversely distributed openings are provided on the cylinder body. The openings are distributed in a circular array. There are two sets of bottom brackets in the cylinder. The multiple bottom brackets of the same group are distributed in a circular array. The multiple bottom brackets and multiple openings of the same group are in the same vertical plane, and the top of the bottom brackets rotates. Two support plates are connected, and the two support plates are passed through the same corresponding opening, and the tops of the adjacent two support plates on the adjacent two bottom brackets are rotatably connected to the same contact plate, and the cross-section of the contact plate is set as Arc-shaped, multiple evenly distributed tension springs are fixedly connected between two adjacent bottom brackets, and a tensioning mechanism is arranged in the cylinder.

Preferably, the tensioning mechanism includes an electric push rod, the electric push rod penetrates and is fixed on the mounting plate, the output shaft of the electric push rod is connected with a first shaft, and the first shaft passes through a plurality of bottom brackets in the same group , two first support rings are rotatably connected to the first shaft rod, and the cross section of the first support rings is circular truncated.

Preferably, the tensioning mechanism includes a second shaft, the second shaft is fixedly connected to the side of the mounting plate close to the cylinder, the second shaft is arranged on the axis of the cylinder, and two shafts are opened on the top of the second shaft. The guide groove is slidingly connected with two symmetrically distributed guide blocks. The guide block is sleeved and fixed with a collar. The collar is rotatably connected with a second support ring. A driving mechanism is connected.

Preferably, the drive mechanism includes a second motor, the second motor is fixedly connected to the side of the mounting plate away from the cylinder, the same drive shaft is rotatably connected between the two guide grooves, and the drive shaft and the output shaft of the second motor are fixed There are two sets of reverse threads on the driving shaft, and a threaded connection is formed between the driving shaft and the guide block.

Preferably, the first motor is fixedly connected to the side of the mounting plate away from the barrel, the output shaft of the first motor is connected to a connecting shaft, the other side of the connecting shaft runs through the mounting plate and is fixedly connected to a gear, and the barrel is sleeved and fixed There are ring gears, ring gears and gear meshing connections.

Preferably, a positioning ring is sheathed and fixed on the cylinder, and the positioning ring is arranged between the opening and the ring gear. The top and bottom outer walls of the cylinder are fixedly connected with two ear pieces symmetrically distributed at both ends, and the two ears There is the same rolling ball connected between the blocks.

Preferably, the same fixing plate is fixedly connected between the inner walls on both sides of the opening, a socket is opened on the fixing plate, and an insertion rod is fixedly connected to the outer surface of the bottom support, and the insertion rod is inserted into the socket.

Preferably, the opposite sides of the contact plates of the two groups are provided with an introduction part, the introduction part and the contact plate are integrated, and the cross section of the introduction part is set in an arc shape.

Preferably, the outer surface of the contact plate is provided with multiple groups of anti-slip parts distributed in an annular array, the anti-slip parts and the contact plate are integrated, and the cross-section of the anti-slip parts is set in a trapezoidal shape.

Preferably, multiple sets of positioning strips distributed in an annular array are fixedly connected to the peripheral outer wall of the first support ring, and the distance between two positioning strips in the same group is equal to the width of the bottom bracket.

Compared with the prior art, the present invention provides a plastic film winder for plastic industry production, which has the following beneficial effects:

1. This kind of plastic film winder used in the plastic industry, puts the reel for rewinding the plastic film on the cylinder body, so that the reel and the positioning ring are tightly attached, and then starts the electric push rod, and the output shaft of the electric push rod Drive the whole of the first shaft and the first support ring to move to the left. Since the cross-section of the first support ring is a circular truncated shape, the first support ring can expand the multiple bottom brackets of the same group, and the tension spring is stretched. , its reverse elastic force makes multiple bottom brackets close to the first support ring, the support plate on the bottom bracket moves outward, and then drives the contact plate to move outward, and the reel can be tightened by multiple contact plates Fixed, so that it is convenient to fix the rolls with different inner diameters.

2. This kind of plastic film winder for plastic industry is equipped with an introduction part with an arc-shaped cross section. The two introduction parts are respectively located at the two ends of the reel. When the end of the reel touches the lead-in part, the position of the reel can be corrected through the arc-shaped face of the lead-in part, so that it is convenient to put the sleeve on the cylinder body, and a rolling ball is provided. When the reel is inserted into the cylinder body At this time, the inner wall of the reel can be placed on the rolling ball, and in the process of advancing the reel, the moving resistance is reduced by the rotating rolling ball, so as to facilitate the process of fitting the reel.

3. This kind of plastic film winder for plastic industry is equipped with a contact plate, and the cross section of the contact plate is arc-shaped, which can better make contact with the inner wall of the reel, thereby improving the safety of the reel after it is fixed. Stability, and an anti-slip part is provided on the surface of the contact plate. The cross-section of the anti-slip part is trapezoidal, that is, when the contact plate follows the cylinder to rotate and rewind, the frictional resistance between the contact plate and the reel can be increased through the anti-slip part, thereby further improving Stability after fixing to the reel.

4. There are positioning strips, and the two positioning strips can always be stuck on both ends of the bottom support. When rotating and winding, the bottom support exerts force on the positioning strips, so that the first support ring keeps synchronously rotating with the bottom support, so that The relative rotation between the base support and the first support ring is effectively avoided, thereby effectively reducing wear.

5. Put the reel used for rolling up the plastic film on the cylinder body, so that the reel and the positioning ring are tightly attached, and then start the second motor, and the output shaft of the second motor drives the drive shaft to rotate. Under the action of the reverse thread, The two guide blocks of the same group are moved close to each other, and the guide blocks synchronously drive the collar and the second support ring to move. Since the cross section of the second support ring is circular, the two second support rings can move the same The multiple bottom brackets of the group are stretched, the tension spring is stretched, and its reverse elastic force makes the multiple bottom brackets close to the second support ring, and the support plate on the bottom bracket moves outward, and then drives the contact plate to The reel can be tightened and fixed through multiple contact plates, so that reels with different inner diameters can be easily fixed.

Description of drawings

Fig. 1 is the first angle structure schematic diagram of a kind of plastic industry production plastic film winder that the present invention proposes;

Fig. 2 is the second angle structure schematic diagram of a plastic film winder for plastic industry production proposed by the present invention;

Fig. 3 is a cylinder sectional structure schematic diagram of a plastic film winder for plastic industry production proposed by the present invention;

Fig. 4 is a structural schematic diagram of the tightening mechanism of a plastic film winder for plastic industry production proposed by the present invention;

Fig. 5 is the schematic diagram of enlarged structure at A of a kind of plastic film winder for plastic industry production proposed by the present invention;

Fig. 6 is a schematic diagram of the installation structure of the first support ring of a plastic film winder for plastic industry production proposed by the present invention;

Fig. 7 is a schematic view of the contact plate structure of a plastic film winder for plastic industry production proposed by the present invention;

Fig. 8 is a schematic diagram of the installation structure of the second shaft rod of a plastic film winder for plastic industry production proposed by the present invention;

Fig. 9 is a schematic diagram of enlarged structure at B of a plastic film winder for plastic industry production proposed by the present invention;

Fig. 10 is a schematic diagram of the positioning bar installation structure of a plastic film winder for plastic industry production proposed by the present invention.

In the figure: 1. Mounting plate; 2. Cylinder body; 3. Opening; 4. Bottom support; 5. Support plate; 6. Contact plate; 7. Tension spring; 8. Electric push rod; 9. First shaft 10, the first support ring; 11, positioning ring; 12, ring gear; 13, the first motor; 14, connecting shaft; 15, gear; 16, fixed plate; 17, inserting rod; 18, socket; Block; 20, rolling ball; 21, introduction part; 22, anti-skid part; 23, positioning bar; 24, second motor; 25, guide groove; 26, guide block; 27, collar; 28, drive shaft; 29, Reverse thread; 30, the second support ring; 31, the second shaft rod.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

Example 1

Referring to Fig. 1-7 and Fig. 10, a plastic film winder for plastic industry production includes a mounting plate 1, the outer wall of one side of the mounting plate 1 is rotatably connected to a cylinder body 2, and two sets of horizontally distributed coils are arranged on the cylinder body 2. Openings 3, multiple openings 3 in the same group are distributed in a circular array, two sets of bottom brackets 4 are arranged in the cylinder body 2, multiple bottom brackets 4 in the same group are distributed in a circular array, multiple bottom brackets 4 in the same group and multiple The two openings 3 are in the same vertical plane, and the top of the bottom support 4 is rotatably connected with two support plates 5, and the two support plates 5 are installed in the same corresponding opening 3, and the two adjacent support plates 4 are connected to each other. The tops of the adjacent two support plates 5 are rotatably connected with the same contact plate 6, the cross-section of the contact plate 6 is arranged in an arc shape, and a plurality of evenly distributed tension springs 7 are fixedly connected between the two adjacent bottom brackets 4. 2 is provided with a tightening mechanism.

Further, the tightening mechanism includes an electric push rod 8, which is penetrated and fixed on the mounting plate 1, and the output shaft of the electric push rod 8 is connected with a first shaft 9, and the first shaft 9 is passed through multiple Inside the bottom support 4, two first support rings 10 are rotatably connected to the first shaft rod 9, and the cross section of the first support rings 10 is circular truncated.

Further, the drive mechanism includes a second motor 24, the second motor 24 is fixedly connected to the side of the mounting plate 1 away from the cylinder body 2, the same drive shaft 28 is rotatably connected between the two guide grooves 25, and the drive shaft 28 and the first The output shafts of the two motors 24 are fixedly connected, and the drive shaft 28 is provided with two sets of reverse threads 29, and a screw connection is formed between the drive shaft 28 and the guide block 26.

Further, the first motor 13 is fixedly connected to the side of the mounting plate 1 away from the cylinder 2, the output shaft of the first motor 13 is connected to the connecting shaft 14, and the other side of the connecting shaft 14 runs through the mounting plate 1 and is fixedly connected to the gear 15. A ring gear 12 is sheathed and fixed on the cylinder body 2, and the ring gear 12 and the gear 15 are meshed and connected.

Further, a positioning ring 11 is sheathed and fixed on the cylinder body 2, and the positioning ring 11 is arranged between the opening 3 and the ring gear 12. The top and bottom outer walls of the cylinder body 2 are fixedly connected with two ear pieces symmetrically distributed at both ends. 19, the same rolling ball 20 is rotatably connected between the two lugs 19 .

Further, the same fixed plate 16 is fixedly connected between the inner walls on both sides of the opening 3, and a socket 18 is opened on the fixed plate 16, and an insertion rod 17 is fixedly connected to the outer surface of the bottom support 4, and the insertion rod 17 is inserted into the socket 18 , that is to say, the bottom bracket 4 can move directionally in the socket 18 along with the insertion rod 17, thereby improving the stability of the bottom bracket 4 during the movement process, and because the first support ring 10 pushes the bottom bracket 4 from one side , the pushing force has horizontal and vertical component forces, the vertical component forces the bottom support 4 to move upward, and the horizontal component force can make the static friction between the insertion rod 17 and the inner wall of the socket 18 The force is improved, so that the overall stress of the bottom bracket 4 is stable.

Further, the opposite sides of the two sets of contact plates 6 are provided with an introduction portion 21 , the introduction portion 21 and the contact plate 6 are integrated, and the cross section of the introduction portion 21 is arranged in an arc shape.

Further, the outer surface of the contact plate 6 is provided with multiple groups of anti-slip parts 22 distributed in an annular array, the anti-slip parts 22 and the contact plate 6 are integrated, and the cross-section of the anti-slip parts 22 is set in a trapezoidal shape.

Furthermore, multiple sets of positioning strips 23 distributed in an annular array are fixedly connected to the peripheral outer wall of the first support ring 10 , and the distance between two positioning strips 23 in the same group is equal to the width of the bottom support 4 .

Working principle: When in use, put the reel for rolling up the plastic film on the cylinder body 2, so that the reel and the positioning ring 11 are in close contact, and then start the electric push rod 8, and the output shaft of the electric push rod 8 drives the first shaft 9 and the first support ring 10 move to the left as a whole. Since the cross section of the first support ring 10 is in the shape of a truncated cone, the first support ring 10 can expand the multiple bottom brackets 4 of the same group, and the tension spring 7 is pulled Stretching, its reverse elastic force makes a plurality of bottom brackets 4 close to the first support ring 10, the support plate 5 on the bottom bracket 4 moves outwards, and then drives the contact plate 6 to move outwards, which can pass through multiple contacts. The plate 6 tightens and fixes the reel, so that the reels with different inner diameters can be easily fixed. After the reel is fixed, the first motor 13 can be started, and the output shaft of the first motor 13 drives the connecting shaft 14 and the gear 15 Rotate, the gear 15 meshes to drive the ring gear 12, the barrel 2 and the reel to rotate as a whole, so that the plastic film can be rolled up. Further, an arc-shaped introduction part 21 is provided, and two introduction parts 21 They are respectively located at both ends of the reel. When the reel is put on the cylinder body 2, if the end of the reel is against the introduction part 21, the position of the reel can be corrected through the arc of the introduction part 21. Thereby, it is convenient to put the sleeve on the cylinder body 2, and a rolling ball 20 is provided. When the reel is inserted into the cylinder body 2, the inner wall of the reel can rest on the rolling ball 20. During the process of advancing the reel, The moving resistance of the rolling ball 20 is reduced, so that the reel assembly process is facilitated. Further, a contact plate 6 is provided, and the cross section of the contact plate 6 is arc-shaped, so that it can be better in contact with the inner wall of the reel. , so as to improve the stability after the reel is fixed, and an anti-skid part 22 is provided on the surface of the contact plate 6. The cross-section of the anti-skid part 22 is trapezoidal. The part 22 improves the frictional resistance between the reel and the reel, thereby further improving the stability after the reel is fixed. Further, positioning strips 23 are provided, and the two positioning strips 23 can always be stuck on the two ends of the bottom support 4. When rotating and winding, the bottom support 4 exerts force on the positioning bar 23, so that the first support ring 10 keeps synchronously rotating with the bottom support 4, thereby effectively avoiding the relative rotation between the bottom support 4 and the first support ring 10, thereby Effectively reduce wear and tear.

Example 2

Referring to Figures 1-9, a plastic film winder for the plastic industry, including a mounting plate 1, the outer wall of one side of the mounting plate 1 is rotatably connected to a cylinder 2, and the cylinder 2 is provided with two sets of transversely distributed openings 3, The plurality of openings 3 in the same group are distributed in an annular array, and two sets of bottom brackets 4 are arranged in the cylinder body 2. The plurality of bottom brackets 4 in the same group are distributed in a circular array. The plurality of bottom brackets 4 and the plurality of openings 3 in the same group In the same vertical plane, two support plates 5 are rotatably connected to the top of the bottom support 4, and the two support plates 5 are passed through the same corresponding opening 3, and the adjacent two support plates on the adjacent two support plates 4 The top of the support plate 5 is rotatably connected with the same contact plate 6, the cross section of the contact plate 6 is arranged in an arc shape, and a plurality of evenly distributed tension springs 7 are fixedly connected between two adjacent bottom brackets 4, and the cylinder body 2 is provided with There is a tightening mechanism.

Further, the tensioning mechanism includes a second shaft 31, the second shaft 31 is fixedly connected to the side of the mounting plate 1 close to the cylinder 2, the second shaft 31 is arranged on the axis of the cylinder 2, the second shaft 31 Two guide grooves 25 are opened on the top, and two symmetrically distributed guide blocks 26 are slidably connected in the guide grooves 25. A collar 27 is sleeved and fixed on the guide block 26, and a second supporting ring 30 is rotatably connected to the collar 27. The cross-section of the second support ring 30 is set in a circular truncated shape, and the guide block 26 is connected with a driving mechanism.

Further, the drive mechanism includes a second motor 24, the second motor 24 is fixedly connected to the side of the mounting plate 1 away from the cylinder body 2, the same drive shaft 28 is rotatably connected between the two guide grooves 25, and the drive shaft 28 and the first The output shafts of the two motors 24 are fixedly connected, and the drive shaft 28 is provided with two sets of reverse threads 29, and a screw connection is formed between the drive shaft 28 and the guide block 26.

Further, the first motor 13 is fixedly connected to the side of the mounting plate 1 away from the cylinder 2, the output shaft of the first motor 13 is connected to the connecting shaft 14, and the other side of the connecting shaft 14 runs through the mounting plate 1 and is fixedly connected to the gear 15. A ring gear 12 is sheathed and fixed on the cylinder body 2, and the ring gear 12 and the gear 15 are meshed and connected.

Further, a positioning ring 11 is sheathed and fixed on the cylinder body 2, and the positioning ring 11 is arranged between the opening 3 and the ring gear 12. The top and bottom outer walls of the cylinder body 2 are fixedly connected with two ear pieces symmetrically distributed at both ends. 19, the same rolling ball 20 is rotatably connected between the two lugs 19 .

Further, the same fixed plate 16 is fixedly connected between the inner walls on both sides of the opening 3, and a socket 18 is opened on the fixed plate 16, and an insertion rod 17 is fixedly connected to the outer surface of the bottom support 4, and the insertion rod 17 is inserted into the socket 18 , that is, the bottom bracket 4 can move directionally in the socket 18 along with the insertion rod 17 , thereby improving the stability of the bottom bracket 4 during the moving process.

Further, the opposite sides of the two sets of contact plates 6 are provided with an introduction portion 21 , the introduction portion 21 and the contact plate 6 are integrated, and the cross section of the introduction portion 21 is arranged in an arc shape.

Further, the outer surface of the contact plate 6 is provided with multiple groups of anti-slip parts 22 distributed in an annular array, the anti-slip parts 22 and the contact plate 6 are integrated, and the cross-section of the anti-slip parts 22 is set in a trapezoidal shape.

Working principle: when in use, put the reel for rolling up the plastic film on the cylinder body 2, so that the reel and the positioning ring 11 are in close contact, and then start the second motor 24, and the output shaft of the second motor 24 drives the drive shaft 28 to rotate , under the action of the reverse thread 29, the two guide blocks 26 of the same group are moved close to each other, and the guide block 26 drives the collar 27 and the second support ring 30 to move synchronously. shape, the two second support rings 30 can stretch out the multiple bottom brackets 4 of the same group from both sides, the tension spring 7 is stretched, and its reverse elastic force makes the multiple bottom brackets 4 close to the second support On the ring 30, the support plate 5 on the bottom bracket 4 moves outward, and then the contact plate 6 is moved outward, so that the reel can be tightened and fixed by a plurality of contact plates 6, so that it is convenient to adjust the reel with different inner diameters. After the reel is fixed, the first motor 13 can be started, the output shaft of the first motor 13 drives the connecting shaft 14 and the gear 15 to rotate, and the gear 15 meshes to drive the ring gear 12, the barrel 2 and the reel as a whole Rotate to realize the retraction of the plastic film. Further, an arc-shaped introduction part 21 is provided. The two introduction parts 21 are respectively located at both ends of the reel. When it is on, if the end of the reel is against the introduction part 21, the position of the reel can be corrected through the arc of the introduction part 21, so that it is convenient to put the sleeve on the cylinder body 2, and a rolling ball 20 is provided. When the reel is inserted into the cylinder body 2, the inner wall of the reel can rest on the rolling ball 20. During the process of advancing the reel, the rolling ball 20 reduces its movement resistance, thus facilitating the process of fitting the reel. , further, a contact plate 6 is provided, and the cross section of the contact plate 6 is arc-shaped, which can better make contact with the inner wall of the reel, thereby improving the stability after fixing the reel, and on the surface of the contact plate 6 An anti-slip part 22 is provided, and the cross-section of the anti-slip part 22 is trapezoidal, that is, when the contact plate 6 follows the cylinder body 2 to rotate and wind up, the frictional resistance between the reel and the reel can be improved through the anti-slip part 22, thereby further improving the resistance to the reel. Stability after fixation.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship indicated by "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device or element Must be in a particular orientation, be constructed in a particular orientation, and operate in a particular orientation, and therefore should not be construed as limiting the invention.

Claims (10)

1. The utility model provides a mould industry production and use plastic film rolling machine, including mounting panel (1), a serial communication port, mounting panel (1) one side outer wall rotates and is connected with barrel (2), set up two sets of transverse distribution's opening (3) on barrel (2), a plurality of opening (3) of organizing on the same side are the annular array and distribute, be provided with two sets of collet (4) in barrel (2), a plurality of collet (4) of organizing on the same side are the annular array and distribute, a plurality of collet (4) and a plurality of opening (3) of organizing on the same side are in same vertical plane, collet (4) top is rotated and is connected with two backup pad (5), two backup pad (5) are worn to locate in the same opening (3) that corresponds, the top of two adjacent backup pad (5) on two adjacent collet (4) is rotated and is connected with same contact plate (6), contact plate (6) cross-section sets to the arc, a plurality of evenly distributed's tensioning spring (7) of fixedly connected with between two adjacent collet (4), be provided with and prop tight mechanism in barrel (2).

2. The plastic film winding machine for plastic industry production according to claim 1, wherein the tightening mechanism comprises an electric push rod (8), the electric push rod (8) penetrates through and is fixed on the mounting plate (1), an output shaft of the electric push rod (8) is connected with a first shaft rod (9), the first shaft rod (9) penetrates through a plurality of bottom supports (4) in the same group, two first supporting rings (10) are rotatably connected to the first shaft rod (9), and the cross section of each first supporting ring (10) is in a circular truncated cone shape.

3. The plastic film rolling machine for plastic industry production of claim 1, characterized in that, prop tight mechanism and include second axostylus axostyle (31), second axostylus axostyle (31) fixed connection is in the one side that mounting panel (1) is close to barrel (2), second axostylus axostyle (31) set up on barrel (2) axis, two guide way (25) have been seted up at second axostylus axostyle (31) top, sliding connection has two symmetric distribution's guide block (26) in guide way (25), the cover is established and is fixed with lantern ring (27) on guide block (26), it has second to prop ring (30) to rotate on lantern ring (27), second props ring (30) cross-section and sets up to the round platform form, guide block (26) are connected with actuating mechanism.

4. The plastic film winding machine for plastic industry production as claimed in claim 3, wherein the driving mechanism comprises a second motor (24), the second motor (24) is fixedly connected to one side, far away from the cylinder (2), of the mounting plate (1), the two guide grooves (25) are connected with a same driving shaft (28) in a rotating mode, the driving shaft (28) is fixedly connected with an output shaft of the second motor (24), two sets of reverse threads (29) are formed in the driving shaft (28), and the driving shaft (28) is in threaded connection with the guide blocks (26).

5. The plastic film winding machine for plastic industry production according to claim 1, characterized in that one side of the mounting plate (1) far away from the cylinder (2) is fixedly connected with a first motor (13), an output shaft of the first motor (13) is connected with a connecting shaft (14), the other side of the connecting shaft (14) penetrates through the mounting plate (1) and is fixedly connected with a gear (15), a gear ring (12) is fixedly sleeved on the cylinder (2), and the gear ring (12) is meshed with the gear (15) for connection.

6. The plastic film winding machine for plastic industry production as claimed in claim 5, wherein a positioning ring (11) is fixedly sleeved on the cylinder (2), the positioning ring (11) is arranged between the opening (3) and the gear ring (12), two lug blocks (19) with two ends symmetrically distributed are fixedly connected to the outer wall of the top and the outer wall of the bottom of the cylinder (2), and the same rolling ball (20) is rotatably connected between the two lug blocks (19).

7. The plastic film winding machine for plastic industry production as claimed in claim 1, wherein the same fixing plate (16) is fixedly connected between the inner walls of the two sides of the opening (3), a socket (18) is formed on the fixing plate (16), an inserting rod (17) is fixedly connected to the outer surface of the bottom support (4), and the inserting rod (17) is inserted into the socket (18).

8. The plastic film winder for plastic industry production as claimed in claim 1, wherein the opposite sides of the two sets of contact plates (6) are provided with an introduction part (21), the introduction part (21) and the contact plates (6) are of an integral structure, and the section of the introduction part (21) is arc-shaped.

9. The plastic film winder for plastic industry production as claimed in claim 1, wherein the outer surface of the contact plate (6) is provided with a plurality of groups of anti-slip parts (22) distributed in an annular array, the anti-slip parts (22) and the contact plate (6) are of an integral structure, and the cross section of each anti-slip part (22) is trapezoidal.

10. The plastic film winding machine for plastic industry production as claimed in claim 2, wherein the outer circumferential wall of the first supporting ring (10) is fixedly connected with a plurality of groups of positioning strips (23) distributed in an annular array, and the distance between two positioning strips (23) in the same group is equal to the width of the bottom support (4).

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