PVC sheet production structure

Abstract

The utility model discloses a PVC (polyvinyl chloride) sheet production structure, which belongs to the technical field of PVC sheet production and comprises a fixing frame, fan-shaped gears and toothed plates are arranged on two sides of the fixing frame, the fan-shaped gears are meshed with the toothed plates, an extension rod is arranged on one of the fan-shaped gears, a driving mechanism is mounted on one side of the fixing frame, and the driving mechanism is mounted on the other side of the fixing frame. The upper roller is rotatably mounted at the lower end of the toothed plate; the lower roller is rotatably mounted at the lower end of the fixing frame. The extension rod is arranged, the motor is arranged at the end, away from the sector gear, of the extension rod, the sector gear can rotate in a small range when one end of the extension rod rotates in a large range, and therefore movement of the toothed plate is better controlled, and the adjusting precision is improved; parameters adjusted each time can be seen at the terminal, follow-up adjustment and positioning can be facilitated on the basis of the parameters, it is ensured that when a certain specification is produced, the positions adjusted each time are the same, and adjustment can be rapidly conducted in place.

Description

Technical Field

[0001] The utility model belongs to the technical field of PVC sheet production, in particular to a PVC sheet production structure. Background Art

[0002] PVC sheet is polyvinyl chloride sheet, which is a sheet plastic material made of polyvinyl chloride as the main raw material through a specific processing technology. PVC sheet has a series of characteristics, such as certain flexibility and strength, good corrosion resistance, relatively high chemical stability, and good insulation and fire resistance. The PVC sheet production structure is a special equipment for processing PVC raw materials into sheet products. The Chinese patent announcement number CN206796520U discloses an easily adjustable PVC sheet extrusion device, which relates to the field of PVC sheet extrusion equipment. The easily adjustable PVC sheet extrusion device includes a fixed seat, and the left and right sides of the top of the fixed seat are symmetrically fixedly installed with a first support seat, and a first rotating shaft is movably connected between the two first supporting seats, and the surface of the first rotating shaft is sleeved with a first roller. The PVC sheet extrusion equipment which is easy to adjust is provided with a motor and a threaded rod, a movable block and a first connecting rod, and a guide rod and a spring, so that the motor drives the threaded rod to rotate, so that the movable block drives the first connecting rod to move, thereby driving the second roller to move stably along the guide rod under the action of the spring, so that the distance between the first roller and the second roller is easy to adjust, and because the two sides of the second roller move synchronously, it is not easy to cause deviation, so that the output quality of the PVC sheet is not affected.

[0003] The problem with the prior art is that the PVC sheet extrusion equipment adjusts the distance between the two rollers through the cooperation of a motor, a threaded rod and a movable block. If the thickness of the PVC produced for the first time is 1, the second time is 2, and the third time is 1, since the adjustment mechanism has no adjustment memory, it takes a long time to adjust each time. When encountering products of the same specification, it cannot be quickly adjusted to the last position, resulting in low adjustment efficiency. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model provides a PVC sheet production structure, which has the advantages of high adjustment accuracy, stable adjustment, memory function and high adjustment efficiency. It solves the problem that the existing adjustment mechanism has no adjustment memory, each adjustment takes a long time, and when encountering products of the same specifications, it cannot be quickly adjusted to the last position, resulting in low adjustment efficiency.

[0005] The utility model is implemented as follows: a PVC sheet production structure comprises a fixed frame, sector gears and toothed plates are arranged on both sides of the fixed frame, the sector gears are meshedly connected with the toothed plates, an extension rod is arranged on one of the sector gears, a movable groove is opened in the extension rod, a driving mechanism is installed on one side of the fixed frame, the driving mechanism comprises a servo motor and a toothed plate, one side of the toothed plate is eccentrically rotatably connected with an I-shaped wheel, the I-shaped wheel is movably arranged in the movable groove, an upper roller for PVC sheet extrusion is rotatably installed at the lower end of the toothed plate, and a lower roller is rotatably installed at the lower end of the fixed frame.

[0006] As a preferred embodiment of the utility model, adjustment grooves for adjusting the upper roller are provided on both sides of the fixing frame, and a mounting frame is fixedly mounted on one side of the fixing frame.

[0007] As a preferred embodiment of the utility model, the driving mechanism also includes an angle sensor and a driven gear, the angle sensor and the servo motor are both fixedly mounted on one end of the mounting frame, the output shaft of the servo motor is fixedly connected to the middle part of one side of the gear disk, the driven gear is fixedly mounted on the input shaft of the angle sensor, and the driven gear is meshingly connected to the gear disk.

[0008] As a preferred embodiment of the utility model, the upper ends of the two tooth plates are provided with limiting grooves, and the upper ends of both sides of the fixing frame are fixedly connected with T-shaped limiting blocks.

[0009] As a preferred embodiment of the present invention, the limiting block is slidably connected to the inner wall of the limiting groove.

[0010] As a preferred embodiment of the present invention, both sides of the fixing frame are fixedly connected with fixing seats, and a connecting shaft is rotatably connected inside the two fixing seats.

[0011] As a preferred embodiment of the present invention, both ends of the connecting shaft are fixedly connected to two sector gears respectively.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model sets an extension rod and sets the motor at one end of the extension rod away from the fan gear. When one end of the extension rod rotates greatly, the fan gear rotates slightly, thereby better controlling the movement of the tooth plate and improving the adjustment accuracy.

[0014] 2. The utility model sets an angle sensor and a driven gear to make the driven gear mesh with the toothed disc, so that the toothed disc drives the driven gear to rotate during the rotation process. The rotation data of the driven gear is recorded by the angle sensor. The angle sensor is electrically connected to the terminal of the production system, and the parameters of each adjustment can be seen at the terminal. Based on the parameters, subsequent adjustment and positioning can be facilitated to ensure that when producing a certain specification, the position of each adjustment is the same and can be quickly adjusted into place. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall first-view three-dimensional structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the overall second-viewing perspective three-dimensional structure of the utility model;

[0017] Figure 3 For the utility model Figure 1 A magnified view of the structure at center;

[0018] Figure 4 For the utility model Figure 2 Enlarged view of the structure at point B in the middle.

[0019] In the figure: 1, fixed frame; 101, adjustment slot; 2, driving mechanism; 3, mounting frame; 4, sector gear; 5, toothed plate; 501, limit slot; 502, limit block; 6, lower roller; 7, upper roller; 201, servo motor; 202, angle sensor; 203, toothed disc; 204, driven gear; 205, I-shaped wheel; 401, fixed seat; 402, connecting shaft; 403, extension rod; 404, movable slot. DETAILED DESCRIPTION

[0020] In order to further understand the content, features and effects of the utility model, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0021] The structure of the utility model is described in detail below in conjunction with the accompanying drawings.

[0022] like Figures 1 to 4 As shown, a PVC sheet production structure provided by an embodiment of the utility model includes a fixed frame 1, fan gears 4 and toothed plates 5 are arranged on both sides of the fixed frame 1, the fan gears 4 are meshingly connected with the toothed plates 5, an extension rod 403 is arranged on one of the fan gears 4, a movable groove 404 is opened in the extension rod 403, a driving mechanism 2 is installed on one side of the fixed frame 1, the driving mechanism 2 includes a servo motor 201 and a toothed plate 203, one side of the toothed plate 203 is eccentrically connected to an I-shaped wheel 205, the I-shaped wheel 205 is movably arranged in the movable groove 404, an upper roller 7 for PVC sheet extrusion is rotatably installed at the lower end of the toothed plate 5, and a lower roller 6 is rotatably installed at the lower end of the fixed frame 1.

[0023] Furthermore, adjustment slots 101 for adjusting the upper roller 7 are provided on both sides of the fixing frame 1 , and a mounting frame 3 is fixedly mounted on one side of the fixing frame 1 .

[0024] In the present application, the upper roller 7 and the lower roller 6 are driven by a driving device of the production equipment. The driving source of the driving device can be set to a motor. The driving mechanism 2 drives the sector gear 4 to rotate, and the sector gear 4 drives the tooth plate 5 to move upward or downward accordingly, thereby driving the upper roller 7 to move synchronously, and realizing the adjustment of the spacing between the upper roller 7 and the lower roller 6. Through the spacing adjustment, the thickness of the produced PVC sheet can be controlled to ensure that the product meets the required specifications. Through appropriate pressure, the conveying of the sheet can also be stabilized to avoid problems such as deviation and accumulation of the sheet during the production process, thereby ensuring the smooth progress of production.

[0025] Furthermore, the driving mechanism 2 also includes an angle sensor 202 and a driven gear 204. The angle sensor 202 and the servo motor 201 are both fixedly mounted on one end of the mounting frame 3. The output shaft of the servo motor 201 is fixedly connected to the middle of one side of the gear disk 203. The driven gear 204 is fixedly mounted on the input shaft of the angle sensor 202, and the driven gear 204 is meshingly connected to the gear disk 203.

[0026] During adjustment, the toothed disc 203 is driven to rotate by starting the motor, and the toothed disc 203 drives the I-shaped wheel 205 to rotate eccentrically. The I-shaped wheel 205 slides in the movable groove 404 of the extension rod 403, and drives the extension rod 403 to rotate around the connecting shaft 402, thereby driving the two sector gears 4 to rotate. Through the engagement between the sector gear 4 and the toothed plate 5, the toothed plate 5 slides upward or downward accordingly, so that the height of the upper roller 7 changes accordingly, and the spacing adjustment is realized.

[0027] By providing an extension rod 403 and providing a motor at one end of the extension rod 403 away from the sector gear 4, the sector gear 4 can rotate slightly when one end of the extension rod 403 rotates significantly, thereby better controlling the movement of the toothed plate 5 and improving the adjustment accuracy.

[0028] The toothed disc 203 drives the driven gear 204 to rotate during the rotation process. The rotation data of the driven gear 204 is recorded by the angle sensor 202. The angle sensor 202 is electrically connected to the terminal of the production system. The parameters of each adjustment can be seen at the terminal. Based on the parameters, subsequent adjustment and positioning can be facilitated to ensure that when producing a certain specification, the position of each adjustment is the same and can be quickly adjusted into place.

[0029] Furthermore, the upper ends of the two tooth plates 5 are provided with limiting grooves 501 , and the upper ends of both sides of the fixing frame 1 are fixedly connected with T-shaped limiting blocks 502 , and the limiting blocks 502 are slidably connected to the inner walls of the limiting grooves 501 .

[0030] In the present application, the limit block 502 limits the tooth plate 5 to the left and right, ensuring that the tooth plate 5 slides up and down vertically on the ground under the drive of the sector gear 4, thereby improving the stability of the adjustment and preventing the two ends of the upper roller 7 from tilting.

[0031] Furthermore, both sides of the fixing frame 1 are fixedly connected with fixing seats 401 , and connecting shafts 402 are rotatably connected inside the two fixing seats 401 , and both ends of the connecting shaft 402 are fixedly connected to the two sector gears 4 respectively.

[0032] In the present application, by setting a connecting shaft 402, on the one hand, the two sector gears 4 can be installed, and on the other hand, it can play a role of connection and transmission between the two sector gears 4, so that the two sector gears 4 rotate synchronously, thereby ensuring that the tooth plates 5 on both sides rise and fall synchronously.

[0033] The working principle of this utility model:

[0034] The starting motor drives the toothed disc 203 to rotate, and the toothed disc 203 drives the I-shaped wheel 205 to rotate eccentrically. The I-shaped wheel 205 slides in the movable groove 404 of the extension rod 403, and drives the extension rod 403 to rotate around the connecting shaft 402, thereby driving the two sector gears 4 to rotate. Through the engagement between the sector gear 4 and the toothed plate 5, the toothed plate 5 slides upward or downward accordingly, so that the height of the upper roller 7 changes accordingly, and the adjustment of the spacing between the upper roller 7 and the lower roller 6 is achieved, so that the thickness of the produced PVC sheet can be controlled. The toothed disc 203 drives the driven gear 204 to rotate during the rotation process. The rotation data of the driven gear 204 is recorded by the angle sensor 202. The angle sensor 202 is electrically connected to the terminal of the production system, and the parameters of each adjustment can be seen at the terminal. Based on the parameters, subsequent adjustment and positioning can be facilitated to ensure that when producing a certain specification, the position of each adjustment is the same and can be quickly adjusted into place.

[0035] To sum up: this PVC sheet production structure, by setting an extension rod 403 and setting the motor at one end of the extension rod 403 away from the fan gear 4, can make the fan gear 4 rotate slightly when one end of the extension rod 403 rotates greatly, so as to better control the movement of the tooth plate 5 and improve the adjustment accuracy. By setting an angle sensor 202 and a driven gear 204, the driven gear 204 is meshed with the toothed disc 203, so that the toothed disc 203 drives the driven gear 204 to rotate during the rotation process. The rotation data of the driven gear 204 is recorded by the angle sensor 202. The angle sensor 202 is electrically connected to the terminal of the production system, and the parameters of each adjustment can be seen at the terminal. Based on the parameters, subsequent adjustment and positioning can be facilitated to ensure that when producing a certain specification, the position of each adjustment is the same and can be quickly adjusted into place.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PVC sheet production structure, comprising a fixing frame (1), characterized in that: Sector gears (4) and toothed plates (5) are provided on both sides of the fixed frame (1), the sector gears (4) being meshedly connected with the toothed plates (5), an extension rod (403) being provided on one of the sector gears (4), a movable groove (404) being provided in the extension rod (403), a driving mechanism (2) being installed on one side of the fixed frame (1), the driving mechanism (2) comprising a servo motor (201) and a toothed plate (203), an I-shaped wheel (205) being eccentrically rotatably connected to one side of the toothed plate (203), the I-shaped wheel (205) being movably arranged in the movable groove (404), an upper roller (7) for PVC sheet extrusion being rotatably installed on the lower end of the toothed plate (5), and a lower roller (6) being rotatably installed on the lower end of the fixed frame (1).

2. A PVC sheet production structure as claimed in claim 1, characterized in that: Adjustment slots (101) for adjusting the movement of the upper roller (7) are provided on both sides of the fixed frame (1), and a mounting frame (3) is fixedly mounted on one side of the fixed frame (1).

3. A PVC sheet production structure as claimed in claim 2, characterized in that: The driving mechanism (2) further comprises an angle sensor (202) and a driven gear (204); the angle sensor (202) and the servo motor (201) are both fixedly mounted on one end of the mounting frame (3); the output shaft of the servo motor (201) is fixedly connected to the middle of one side of the toothed disc (203); the driven gear (204) is fixedly mounted on the input shaft of the angle sensor (202); and the driven gear (204) is meshingly connected to the toothed disc (203).

4. A PVC sheet production structure as claimed in claim 1, characterized in that: The upper ends of the two tooth plates (5) are provided with limiting grooves (501), and the upper ends of both sides of the fixing frame (1) are fixedly connected with T-shaped limiting blocks (502).

5. A PVC sheet production structure as claimed in claim 4, characterized in that: The limiting block (502) is slidably connected to the inner wall of the limiting groove (501).

6. A PVC sheet production structure as claimed in claim 1, characterized in that: Both sides of the fixing frame (1) are fixedly connected with fixing seats (401), and connecting shafts (402) are rotatably connected inside the two fixing seats (401).

7. A PVC sheet production structure as claimed in claim 6, characterized in that: Both ends of the connecting shaft (402) are fixedly connected to two sector gears (4) respectively.

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