Winding device for PET blister sheet production

Abstract

The utility model discloses a winding device for PET (Polyethylene Terephthalate) plastic uptake sheet production, relates to the related technical field of PET plastic uptake sheet production, and aims to solve the problems that in the prior art, in the winding process, the diameter of a winding drum is larger and larger along with winding, the distance between the winding drum and a dust removal structure is always changed, so that the tension degree of a sheet is larger and larger, the sheet is stressed unevenly, and the production efficiency is increased. And local cracks and even fractures are easy to occur. Vertical rectangular grooves are formed in the supporting vertical plate in a left-right penetrating mode, and vertical sliding blocks are connected into the two vertical rectangular grooves in a sliding mode. A second dust removal roller is rotationally connected to the lower end between the two vertical sliding blocks through a bearing, a middle connecting bridge is fixed to the upper end between the two vertical sliding blocks, an adjusting threaded rod is connected to the middle connecting bridge in a threaded mode, and a C-shaped connecting plate is arranged in the middle connecting bridge along the lower end of the adjusting threaded rod; and a first dust removal roller is rotationally connected into the C-shaped connecting plate through a bearing.

Description

TECHNICAL FIELD

[0001] The utility model relates to the production related technical field of PET blister sheet, specifically to a winding device for PET blister sheet production. BACKGROUND

[0002] PET (polyethylene terephthalate) as a kind of thermoplastic plastic, because of its excellent physical properties, chemical stability and environmental protection characteristics, has been widely used in blister processing field.PET blister sheet production mainly involves batching and mixing, pre-crystallization and drying, extrusion plasticization, two-way stretching, cooling and setting and subsequent processing and other processes.In batching and mixing stage, commonly used PET masterbatch chip and raw materials such as bright chip are stirred uniformly by metering mixer and then sent to next process.Pre-crystallization and drying are to increase the softening point of polymer, avoid resin particles adhering to each other or forming a group, and remove water in resin to prevent hydrolysis or bubble generation during melt extrusion.Subsequently, PET chip is heated and melted by single screw or double screw extruder, and is cast into sheet by clothes hanger type die and other molds, forming a certain thickness and uniformity.The PET sheet enters the longitudinal stretching and transverse stretching stage after cooling and setting by quenching roller, and obtains the required physical and mechanical properties in longitudinal and transverse directions through preheating, stretching, heat setting and cooling processes.The film after two-way stretching is subjected to edge cutting, thickness measurement and corona treatment processes, and finally becomes qualified PET blister sheet.

[0003] In the production process of PET blister sheet, winding is a crucial link.The winding device not only needs to wind the produced sheet neatly, but also needs to ensure that the sheet does not deviate, wrinkle or break during winding.

[0004] For example, the Chinese authorized patent with publication number CN 219378116 U (a winding device for PET sheet) includes a support frame and a dust removal mechanism; the dust removal mechanism includes a bearing frame, a lifting piece, an adjusting mechanism, a first rotating piece and a second rotating piece; the bearing frame is fixed on the support frame, and the two ends of the first rotating piece are rotatably connected with the bearing frame; the lifting piece is slidingly arranged on the bearing frame, the adjusting mechanism is used for adjusting the height of the lifting piece, and the two ends of the second rotating piece are rotatably connected with the two ends of the lifting piece.This application improves the dust removal effect of the winding device on PET sheet.

[0005] Although the above-mentioned prior art has the functions of winding and dust removal, the diameter of the winding drum increases as the winding becomes larger during the winding process, and the distance from the dust removal structure is always changing, which makes the tension of the sheet become larger and larger, and the sheet is unevenly stressed, which is easy to cause local cracks or even breakage. UTILITY MODEL CONTENTS

[0006] The utility model discloses a purpose lies in providing a kind of winding device for PET blister sheet production, to solve the diameter of the winding drum in the winding process in the background art proposed with winding bigger and bigger, the distance from dust removal structure is always changing, so that the tension of sheet is bigger and bigger, so that sheet stress is uneven, prone to local crack even rupture problem.

[0007] To achieve the above object, the utility model provides the following technical scheme: a kind of winding device for PET blister sheet production, including lower support base, the two sides of lower support base upper end front end are all welded and fixed with support vertical plate, vertical rectangular slot is opened in the left and right of support vertical plate, third drive motor is centrally mounted on the upper end of one side support vertical plate, second threaded rod is mounted in vertical rectangular slot along the output shaft end of third drive motor, two vertical rectangular slots are all slidably connected with vertical sliding block, the output shaft end of third drive motor is centrally mounted on the upper end of one side vertical sliding block, and the output shaft end of third drive motor is centrally mounted on the upper end of one side vertical sliding block.

[0008] Preferably, the lower end between the two vertical sliding blocks is rotatably connected with the second dust removal roller through the bearing, the upper end between the two vertical sliding blocks is fixed with the intermediate connecting bridge, the intermediate connecting bridge is threadedly connected with the adjusting threaded rod, the upper end of the adjusting threaded rod is fixed with the connecting hand wheel, the C-shaped connecting plate is arranged in the intermediate connecting bridge along the lower end of the adjusting threaded rod, the adjusting threaded rod is connected with the C-shaped connecting plate through the bearing, and the first dust removal roller is rotatably connected in the C-shaped connecting plate.

[0009] Preferably, the upper end of the lower support base is welded and fixed with the L-shaped support plate on one side, the first limiting piece and the second limiting piece are arranged on the both sides of the lower end of the horizontal plate of the L-shaped support plate, and the first limiting piece and the second limiting piece are arranged on the both sides of the lower end of the horizontal plate of the L-shaped support plate.

[0010] Preferably, the second drive motor is mounted on the outer side of the horizontal plate of the L-shaped support plate, the horizontal rectangular slot is opened in the horizontal plate of the L-shaped support plate, and the first threaded rod is connected in the horizontal rectangular slot along the output shaft end of the second drive motor.

[0011] Preferably, the horizontal rectangular slot is slidably connected with the horizontal sliding piece, the horizontal sliding piece is threadedly connected with the first threaded rod, and the horizontal sliding piece extends downward.

[0012] Preferably, the first limiting piece and the second limiting piece both include a transmission shaft, a limiting disc and a limiting block, the transmission shaft is fixed to the outer side of the limiting disc, the limiting block is fixed to the inner side of the limiting disc, and the transmission shaft of the first limiting piece is connected with the horizontal sliding piece through the bearing.

[0013] Preferably, the inner lower end of the vertical plate of the L-shaped support plate is provided with a first driving motor, the outer lower end of the vertical plate of the L-shaped support plate is connected with a first transmission wheel along the output shaft end of the first driving motor, and the outer upper end of the vertical plate of the L-shaped support plate is provided with a second transmission wheel, which is connected with a transmission shaft of a second limiting piece, and the second transmission wheel is in transmission connection with the first transmission wheel through a transmission belt.

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

[0015] (1) In the utility model, the third driving motor drives the second threaded rod to rotate, drives the vertical sliding block and the dust removal roller to move up and down, and after the winding drum winds the PET blister sheet, the diameter becomes larger and larger, the movable vertical sliding block can move upward, so that the winding progress of the winding drum is matched, the tension of the PET blister sheet is kept in the appropriate range, and the winding effect is ensured.

[0016] (2) In the utility model, the first dust removal roller and the second dust removal roller are arranged, dust on the upper and lower surfaces of the PET blister sheet is effectively removed, and the product quality and the production efficiency are greatly improved.

[0017] (3) In the utility model, the second driving motor drives the first threaded rod to rotate, so that the transverse sliding part in threaded connection with the first threaded rod moves, drives the first limiting piece to move reversely towards the second limiting piece, the limiting inner groove at the other end of the winding drum is inserted into the limiting block on the first limiting piece, the winding drum is fixed in position, the rapid limiting and fixing of the winding drum are realized, and the operation is simple, time-saving and labor-saving. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of a main view angle of a winding device for PET blister sheet production of the utility model;

[0019] Figure 2 It is a whole structure schematic view of a rear view angle of a winding device for PET blister sheet production of the utility model;

[0020] Figure 3 It is a front view of a winding device for PET blister sheet production of the utility model;

[0021] Figure 4 It is a structure schematic view of the winding device for PET blister sheet production of the utility model after removing the winding drum;

[0022] Figure 5The utility model discloses a kind of winding drum of winding device for PET blister sheet production.

[0023] In the drawing: 1, lower support seat;2, L-shaped support plate;3, first drive motor;4, first transmission wheel;5, second transmission wheel;6, transmission belt;7, second drive motor;8, transverse rectangular groove;9, first threaded rod;10, transverse sliding member;11, first limiting piece;12, second limiting piece;13, transmission shaft;14, limiting disc;15, limiting block;16, winding drum;17, limiting inner groove;18, support vertical plate;19, vertical rectangular groove;20, third drive motor;21, second threaded rod;22, vertical sliding block;23, middle connecting bridge;24, connecting hand wheel;25, adjusting threaded rod;26, C-shaped connecting plate;27, first dust removal roller;28, second dust removal roller. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0025] Please refer to Figures 1-5 The utility model provides an embodiment:

[0026] (1) adjusting matching and dust removal structure: the two sides of the upper end of the lower support seat 1 are both welded and fixed with support vertical plates 18, and vertical rectangular grooves 19 are penetrated and arranged on the support vertical plates 18. The upper end of one side of the support vertical plate 18 is centrally provided with a third drive motor 20, and a second threaded rod 21 is arranged on the output shaft end of the third drive motor 20 in the vertical rectangular groove 19.

[0027] The two vertical rectangular grooves 19 are both slidably connected with vertical sliding blocks 22, and one side of the vertical sliding block 22 is connected with the second threaded rod 21 through screw connection. The upper end between the two vertical sliding blocks 22 is fixed with a middle connecting bridge 23, the middle connecting bridge 23 is screw-connected with an adjusting threaded rod 25, and the upper end of the adjusting threaded rod 25 is fixed with a connecting hand wheel 24. By manually rotating the connecting hand wheel 24, the up-and-down movement of the adjusting threaded rod 25 is realized, and then the height of the dust removal roller is adjusted to adapt to PET blister sheet of different specifications.

[0028] The lower end between the two vertical sliding blocks 22 is rotatably connected with a second dust removal roller 28 through a bearing, the middle connecting bridge 23 is provided with a C-shaped connecting plate 26 along the lower end of the adjusting threaded rod 25, the adjusting threaded rod 25 is connected with the C-shaped connecting plate 26 through a bearing, and the C-shaped connecting plate 26 is rotatably connected with a first dust removal roller 27 through a bearing. The stability and flexibility of the first dust removal roller 27 and the second dust removal roller 28 in the up-and-down movement process are ensured, and the dust on the upper surface of the PET blister sheet is effectively removed.

[0029] (2)Rolling and limiting structure: the lower end of the L-shaped support plate 2 is welded and fixed on the upper end of the lower support base 1, the first limiting piece 11 and the second limiting piece 12 are arranged on the lower end of the upper horizontal plate of the L-shaped support plate 2 respectively, and the rolling cylinder 16 is connected between the first limiting piece 11 and the second limiting piece 12, and the first limiting piece 11 and the second limiting piece 12 provide a stable support structure for the limiting and fixing of the rolling cylinder 16. The limiting inner groove 17 is centrally arranged on the two side faces of the rolling cylinder 16, the limiting inner groove 17 is matched with the limiting block 15 in shape, and the following rotation of the rolling cylinder 16 in the limiting and fixing process is ensured.

[0030] The second driving motor 7 is installed on the outer side of the upper horizontal plate of the L-shaped support plate 2, the horizontal rectangular groove 8 is vertically and penetratingly arranged on the upper horizontal plate of the L-shaped support plate 2, the first threaded rod 9 is connected to the output shaft end of the second driving motor 7 in the horizontal rectangular groove 8, the horizontal sliding piece 10 is slidingly connected in the horizontal rectangular groove 8, the horizontal sliding piece 10 is threadedly connected with the first threaded rod 9, and the horizontal sliding piece 10 extends downward; through the driving of the second driving motor 7, the rapid movement of the first limiting piece 11 is realized.

[0031] The first limiting piece 11 and the second limiting piece 12 each include the transmission shaft 13, the limiting disc 14 and the limiting block 15, the transmission shaft 13 is fixedly arranged on the outer side of the limiting disc 14, the limiting block 15 is fixedly arranged on the inner side of the limiting disc 14, the transmission shaft 13 on the first limiting piece 11 is connected with the horizontal sliding piece 10 through a bearing, the stability and flexibility of the limiting piece in the horizontal movement process are ensured, and the rapid limiting and fixing of the rolling cylinder 16 are realized.

[0032] The first driving motor 3 is installed on the inner side of the lower end of the vertical plate of the L-shaped support plate 2, the first transmission wheel 4 is connected to the output shaft end of the first driving motor 3 on the outer side of the lower end of the vertical plate of the L-shaped support plate 2, the second transmission wheel 5 is installed on the outer side of the upper end of the vertical plate of the L-shaped support plate 2, the second transmission wheel 5 is connected with the transmission shaft 13 on the second limiting piece 12, and the second transmission wheel 5 is drivingly connected with the first transmission wheel 4 through the transmission belt 6. Through the driving of the first driving motor 3, the stable rotation of the rolling cylinder 16 is realized, and the winding work of the PET blister sheet is completed.

[0033] Working principle: the limiting inner groove 17 at one end of the rolling cylinder 16 is inserted into the limiting block 15 on the second limiting piece 12, the second driving motor 7 drives the first threaded rod 9 to rotate, the horizontal sliding piece 10 threadedly connected with the first threaded rod 9 moves, drives the first limiting piece 11 to move reversely towards the second limiting piece 12, the limiting inner groove 17 at the other end of the rolling cylinder 16 is inserted into the limiting block 15 on the first limiting piece 11, and the rolling cylinder 16 is limited and fixed.

[0034] The reverse rotation connecting hand wheel 24 drives the adjusting threaded rod 25 to rotate, so that the C-shaped connecting plate 26 moves upward, the first dust removal roller 27 moves upward synchronously, the PET blister sheet is pulled from the first dust removal roller 27 and the second dust removal roller 28, and then is wound on the winding drum 16; the reverse rotation connecting hand wheel 24 drives the adjusting threaded rod 25 to rotate, and the first dust removal roller 27 moves downward and closely contacts the PET blister sheet.

[0035] The first driving motor 3 drives the first transmission wheel 4 to rotate, the winding drum 16 is driven to rotate through the transmission relationship of the first transmission wheel 4, the second transmission wheel 5 and the transmission belt 6 and the connecting relationship of the second transmission wheel 5 and the transmission shaft 13 on the second limiting piece 12, the PET blister sheet is wound, the first dust removal roller 27 and the second dust removal roller 28 remove the dust on the upper and lower surfaces of the PET blister sheet; meanwhile, the third driving motor 20 drives the second threaded rod 21 to rotate, drives the vertical sliding block 22 in threaded connection with the second threaded rod 21 to move upward, the first dust removal roller 27 and the second dust removal roller 28 move upward synchronously, match the upper end point position of the winding drum 16 on which the PET blister sheet is wound, and keep the PET blister sheet tension in a proper range.

[0036] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-restrictive in any aspect, the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims.

Claims

1. A winding device for the production of PET blister sheet material, comprising a lower support seat (1), characterized by the fact that: The lower support seat (1) upper end front end both sides are welded and fixed with support vertical plate (18), the support vertical plate (18) is opened with vertical rectangular slot (19) on the left and right, the upper end of one side support vertical plate (18) is installed with third drive motor (20), the vertical rectangular slot (19) is installed with second threaded rod (21) along the output shaft end of third drive motor (20), two vertical rectangular slot (19) are all slidingly connected with vertical sliding block (22), one side vertical sliding block (22) is connected with second threaded rod (21) through thread, the lower end between two vertical sliding block (22) is rotatably connected with second dust roller (28), the upper end between two vertical sliding block (22) is fixed with intermediate connecting bridge (23), the intermediate connecting bridge (23) is threadedly connected with adjusting threaded rod (25), the upper end of adjusting threaded rod (25) is fixed with connecting hand wheel (24), the C-shaped connecting plate (26) is arranged in the intermediate connecting bridge (23) along the lower end of adjusting threaded rod (25), adjusting threaded rod (25) is connected with C-shaped connecting plate (26) through bearing, the first dust roller (27) is rotatably connected in the C-shaped connecting plate (26) through bearing, the first dust roller (27) and second dust roller (28) correspond to each other.

2. The winding device for PET blister sheet production according to claim 1, characterized in that: The lower support seat (1) upper end rear end one side is welded and fixed with L-shaped support plate (2), the L-shaped support plate (2) upper transverse plate lower end both sides are provided with first limiting piece (11) and second limiting piece (12) respectively.

3. The winding device for PET blister sheet production according to claim 2, characterized in that: The L-shaped support plate (2) upper transverse plate outer side is installed with second drive motor (7), the L-shaped support plate (2) upper transverse plate is opened with horizontal rectangular slot (8) on the left and right, the horizontal rectangular slot (8) is connected with first threaded rod (9) along the output shaft end of second drive motor (7).

4. The winding device for PET blister sheet production according to claim 3, characterized in that: The horizontal rectangular slot (8) is slidingly connected with horizontal sliding piece (10), the horizontal sliding piece (10) is connected with first threaded rod (9) through thread, and the horizontal sliding piece (10) extends downward.

5. The winding device for PET blister sheet production according to claim 4, characterized in that: The first limiting piece (11) and the second limiting piece (12) all include transmission shaft (13), limiting disc (14) and limiting block (15), the transmission shaft (13) is fixed centrally on the outer side of the limiting disc (14), the limiting block (15) is fixed centrally on the inner side of the limiting disc (14), and the transmission shaft (13) is connected with the horizontal sliding piece (10) through the bearing on the first limiting piece (11).

6. The winding device for PET blister sheet production according to claim 5, characterized in that: The first limiting piece (11) and the second limiting piece (12) are connected with winding drum (16), the both sides of the winding drum (16) are centrally provided with limiting inner groove (17), and the limiting inner groove (17) is matched with the limiting block (15) in shape.

7. The winding device for PET blister sheet production according to claim 5, characterized in that: The inner side lower end of the vertical plate of the L-shaped support plate (2) is provided with a first driving motor (3), the outer side lower end of the vertical plate of the L-shaped support plate (2) is connected with a first transmission wheel (4) along the output shaft end of the first driving motor (3), the outer side upper end of the vertical plate of the L-shaped support plate (2) is provided with a second transmission wheel (5), the second transmission wheel (5) is connected with a transmission shaft (13) on the second limiting piece (12), and the second transmission wheel (5) is in transmission connection with the first transmission wheel (4) through a transmission belt (6).

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