Calender for producing environment-friendly elastic PVC (polyvinyl chloride) film

Abstract

The utility model discloses a calender for producing an environment-friendly elastic PVC (Polyvinyl Chloride) film, which comprises a rack, a plurality of groups of compression rollers are arranged on the inner side of the rack, a separating mechanism for increasing the distance between the compression rollers is arranged at the end part of each compression roller, and a driving mechanism is arranged on the side surface of each compression roller; the pressing roller distance adjusting mechanism is simple in structure and reasonable in design, the first motor and the driving shaft are matched with the opposite threads, accurate adjustment of the pressing roller distance is achieved, the pressing roller distance can be rapidly and accurately adjusted when materials need to be replaced or equipment needs to be maintained or production specifications need to be adjusted, in addition, the safety and reliability of the equipment are improved, and the working efficiency is improved. The press roll can be rapidly separated under emergency conditions, potential safety risks are reduced, accurate meshing and position adjustment of the main gear and the auxiliary gear are achieved through cooperation of a second motor and a sliding seat combined with a sliding rail so as to adapt to effective driving of the press roll, and due to the configuration, the press roll can be effectively driven when the calender operates normally and is maintained or repaired. The meshing state between the gears can be rapidly adjusted, and the flexibility and continuity of the production process are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of PVC film production equipment, in particular to a calender for producing environmentally friendly elastic PVC films. Background Art

[0002] Under the current trend of environmental protection and sustainable development, the production of environmentally friendly elastic PVC (polyvinyl chloride) film has gradually become an important branch of the plastics industry. Environmentally friendly elastic PVC film is widely used in packaging, construction, medical, automotive and other industries due to its excellent physical properties, chemical corrosion resistance, excellent elasticity and recyclability. With the improvement of environmental protection standards and the increase in consumer demand for environmentally friendly products, the production of high-quality environmentally friendly elastic PVC film has become one of the main challenges faced by manufacturers. This not only requires the use of environmentally friendly materials in the production process, but also requires the entire production process to be energy-saving and consumption-reducing, and reduce the impact on the environment. Therefore, the development of an efficient, energy-saving, environmentally friendly and high-quality environmentally friendly elastic PVC film production equipment is of great significance to meet market demand and promote industry development.

[0003] In the production process of environmentally friendly elastic PVC film, the calender is a key equipment, and its performance directly affects the quality and production efficiency of the film. However, the existing calender has many inconveniences in the maintenance and adjustment process, especially in the adjustment of the roller spacing and the maintenance of the rollers. Due to the limitations of the traditional calender design, the adjustment of the roller spacing often requires stopping the machine and performing it manually, which not only consumes time but also affects production efficiency. At the same time, the maintenance and replacement of the rollers are also difficult, especially in emergency situations, it becomes particularly important to quickly separate the rollers for maintenance or troubleshooting. For example, when the film is stuck or the roller is damaged, quickly and effectively dealing with the problem is the key to reducing downtime and production losses. Therefore, there is an urgent need for a calender design that can quickly adjust the roller spacing and is easy to maintain and maintain, so as to improve the production efficiency of environmentally friendly elastic PVC film and reduce maintenance costs. Utility Model Content

[0004] The purpose of the utility model is to provide a calender for producing an environmentally friendly elastic PVC film to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a calender for producing environmentally friendly elastic PVC film, comprising a frame, a plurality of groups of rollers are arranged inside the frame, a separation mechanism for increasing the roller spacing is arranged at the end of the roller, and a driving mechanism is arranged on the side of the roller;

[0006] The separation mechanism comprises:

[0007] A first motor, wherein the first motor is arranged inside the frame, and an output end of the first motor is connected to a first bevel gear;

[0008] A driving shaft, wherein the driving shaft is movably arranged inside the frame, a second bevel gear is arranged at the end of the driving shaft, the first bevel gear and the second bevel gear are connected by a bevel gear rod, and reciprocal threads are arranged on the upper and lower sides of the driving shaft;

[0009] The bearing bracket is respectively arranged on the mutually opposite threads on the upper and lower sides of the driving shaft, and the interior of the bearing bracket is rotatably connected with the pressure roller.

[0010] Preferably, the driving mechanism comprises:

[0011] A second motor, wherein a slide seat is provided at the bottom of the second motor, a slide rail is provided at the bottom of the slide seat, and the slide rail is provided on the lower end surface inside the frame, and an output end of the second motor is connected to a main gear;

[0012] A secondary gear is arranged on the side of the pressure roller, and the secondary gear is meshed and connected with the main gear.

[0013] Preferably, a clamping mechanism for fixing the drive shaft is provided on the side of the drive shaft;

[0014] The clamping mechanism comprises:

[0015] A first jacket, the first jacket being fixedly disposed inside the frame;

[0016] A second jacket is connected to the first jacket via bolts.

[0017] Preferably, the first motor is a reduction motor.

[0018] Preferably, a mounting seat is provided on the outer side of the first motor, and the mounting seat is fixedly arranged inside the frame.

[0019] Preferably, a rubber layer is provided on the inner side of the first jacket and the second jacket.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] The calender for producing an environmentally friendly elastic PVC film is provided with a separation mechanism, which includes a first motor, a first bevel gear, a drive shaft, a second bevel gear, a bevel gear rod, a reciprocal thread, and a bearing bracket. The first motor and the drive shaft cooperate with the reciprocal thread to achieve precise adjustment of the pressure roller spacing, so that when it is necessary to replace materials, perform equipment maintenance, or adjust production specifications, the pressure roller spacing can be adjusted quickly and accurately. In addition, the mechanism also increases the safety and reliability of the equipment, ensuring that the pressure rollers can be quickly separated in an emergency, reducing potential safety risks;

[0022] The calender for producing environmentally friendly elastic PVC film is provided with a driving mechanism, which includes a second motor, a slide seat, a slide rail, a main gear, and a sub-gear. The second motor cooperates with the slide seat in combination with the slide rail to achieve precise meshing and position adjustment of the main gear and the sub-gear to adapt to the effective driving of the pressing roller. This configuration enables the meshing state between the gears to be quickly adjusted during normal operation, maintenance or repair of the calender, thereby ensuring the flexibility and continuity of the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a front structural schematic diagram of the utility model;

[0024] Figure 2 This is a schematic diagram of the internal structure of the side frame of the utility model;

[0025] Figure 3 This is a schematic diagram of the clamping mechanism structure of the utility model;

[0026] Figure 4 It is a schematic structural diagram of the connection between the pressure roller and the bearing bracket of the utility model.

[0027] In the figure: 1, frame; 2, pressure roller; 3, separation mechanism; 301, first motor; 302, first bevel gear; 303, drive shaft; 304, second bevel gear; 305, bevel gear rod; 306, reciprocal thread; 307, bearing bracket; 4, driving mechanism; 401, second motor; 402, slide seat; 403, slide rail; 404, main gear; 405, sub gear; 5, clamping mechanism; 501, first jacket; 502, second jacket; 6, mounting seat; 7, rubber layer. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "setting" should be understood in a broad sense, for example, it can be fixed connection, setting, or detachable connection, setting, or integrated connection, setting. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "several" is two or more, unless otherwise clearly and specifically defined. Example

[0032] See also Figure 1-4 As shown, the utility model provides a technical solution of a calender for producing an environmentally friendly elastic PVC film: a calender for producing an environmentally friendly elastic PVC film, comprising a frame 1, a plurality of groups of pressing rollers 2 are arranged inside the frame 1, a separation mechanism 3 for increasing the spacing between the pressing rollers 2 is arranged at the end of the pressing rollers 2, and a driving mechanism 4 is arranged on the side of the pressing rollers 2;

[0033] The separation mechanism 3 includes a first motor 301, a drive shaft 303, and a bearing bracket 307. The first motor 301 is arranged inside the frame 1. The output end of the first motor 301 is connected to the first bevel gear 302. The drive shaft 303 is movably arranged inside the frame 1. The end of the drive shaft 303 is provided with a second bevel gear 304. The first bevel gear 302 and the second bevel gear 304 are connected by a bevel gear rod 305. The upper and lower sides of the drive shaft 303 are provided with reciprocal threads 306. The bearing brackets 307 are respectively arranged on the drive shaft 303. On the reciprocal threads 306 on the upper and lower sides, the interior of the bearing bracket 307 is rotatably connected to the pressure roller 2. In this embodiment, the reciprocal threads 306 are thread structures with opposite directions and the same thread pitch. In the specific implementation process, the separation mechanism 3 can be respectively set on both sides of the pressure roller 2, or independently set on a single side. When the pressure roller 2 needs to be separated, the first motor 301 drives the drive shaft 303 to rotate. At this time, the upper and lower pressure rollers 2 will be separated under the movement of the drive shaft 303 and the bearing bracket 307, and the shutdown operation can be performed at this time.

[0034] The driving mechanism 4 includes a second motor 401 and a sub-gear 405. A slide 402 is installed at the bottom of the second motor 401. A slide rail 403 is arranged at the bottom of the slide 402. The slide rail 403 is fixedly installed on the lower end surface inside the frame 1. The output end of the second motor 401 is connected to a main gear 404. The sub-gear 405 is fixed to the side of the pressure roller 2. The sub-gear 405 and the main gear 404 are meshed and connected with each other. In the actual working process, the inside of the slide rail 403 can be provided with a block to realize the locking and releasing of the position of the second motor 401. In the normal working process of the calender, the second motor 401 directly drives the main gear 404 to rotate, and then the sub-gear 405 is as shown in FIG. Figure 2 The mutual linkage shown is for normal calendering work. When maintenance or repair is performed, the positions of the two sub-gears 405 change, so the main gear 404 needs to be disengaged from the sub-gear 405. In this process, it is first necessary to release the locking relationship between the slide rail 403 and the second motor 401, and then disengage the main gear 404 from the sub-gear 405 to perform the operation. When re-engagement is required, it can be achieved through the above-mentioned reverse process.

[0035] A clamping mechanism 5 is provided on the side of the driving shaft 303, and the clamping mechanism 5 includes a first jacket 501 and a second jacket 502. The first jacket 501 is fixedly connected to the inside of the frame 1, and the second jacket 502 is connected to the first jacket 501 by bolts. When the equipment is in operation or shut down for maintenance, in order not to affect the work, the position of the driving shaft 303 needs to be locked to avoid unnecessary influence. When locking, the operator needs to open the side cover of the frame 1, and then tighten the bolts with a manual tool so that the driving shaft 303 is completely clamped by the first jacket 501 and the second jacket 502.

[0036] The first motor 301 is a reduction motor. By designing the first motor 301 as a reduction motor, the output torque can be increased so that the motor can still provide sufficient torque under low-speed operation conditions, which is more in line with actual operation requirements.

[0037] A mounting base 6 is arranged outside the first motor 301, and the mounting base 6 is fixedly installed inside the frame 1. By providing the mounting base 6, the stability of the first motor 301 during operation can be ensured, vibration during operation can be reduced, and the stability of equipment operation can be improved.

[0038] The inner sides of the first jacket 501 and the second jacket 502 are both provided with a rubber layer 7 . The rubber layer 7 can provide better friction force, prevent the driving shaft 303 from rotating at unnecessary times, and ensure the rotation efficiency and accuracy of the pressure roller 2 .

[0039] The working principle of the utility model is as follows:

[0040] In the calender for producing an environmentally friendly elastic PVC film of the present embodiment, when the pressing roller 2 is separated, the first click 301 is first started to drive the driving shaft 303 with the first bevel gear 302 to rotate. Since the upper and lower sides of the driving shaft 303 are provided with reciprocal threads 306, the bearing bracket 307 matched therewith moves accordingly with the rotation of the driving shaft 303, so that the pressing roller 2 rotatably connected to the bearing bracket 307 can adjust the spacing as needed to achieve separation or approach. When the calender is working normally, the second motor 401 directly drives the main gear 404 to rotate, and drives the pressing roller 2 to rotate through the engagement of the sub-gear 405 to perform the calendering operation of the PVC film. When maintenance or repair is required, the lock on the slide rail 403 can be released to adjust the meshing state of the main gear 404 and the sub-gear 405 to perform the corresponding operation.

[0041] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A calender for producing an environmentally friendly elastic PVC film, comprising a frame (1), characterized in that: A plurality of groups of pressing rollers (2) are arranged inside the frame (1); separation mechanisms (3) for increasing the spacing between the pressing rollers (2) are arranged at the ends of the pressing rollers (2); and driving mechanisms (4) are arranged on the sides of the pressing rollers (2); The separation mechanism (3) comprises: A first motor (301), the first motor (301) being arranged inside the frame (1), and an output end of the first motor (301) being connected to a first bevel gear (302); A drive shaft (303), the drive shaft (303) being movably arranged inside the frame (1), a second bevel gear (304) being arranged at the end of the drive shaft (303), the first bevel gear (302) and the second bevel gear (304) being transmission-connected via a bevel gear rod (305), and reciprocal threads (306) being arranged on the upper and lower sides of the drive shaft (303); A bearing bracket (307), wherein the bearing bracket (307) is respectively arranged on the reciprocal threads (306) on the upper and lower sides of the drive shaft (303), and the interior of the bearing bracket (307) is rotatably connected to the pressure roller (2).

2. The calender for producing an environmentally friendly elastic PVC film according to claim 1, characterized in that: The driving mechanism (4) comprises: a second motor (401), wherein a slide seat (402) is disposed at the bottom of the second motor (401), a slide rail (403) is disposed at the bottom of the slide seat (402), and the slide rail (403) is disposed on the lower end surface inside the frame (1); and an output end of the second motor (401) is connected to a main gear (404); A secondary gear (405), wherein the secondary gear (405) is arranged on a side surface of the pressure roller (2), and the secondary gear (405) is meshedly connected with the main gear (404).

3. The calender for producing an environmentally friendly elastic PVC film according to claim 1, characterized in that: A clamping mechanism (5) for fixing the drive shaft (303) is provided on the side surface of the drive shaft (303); The clamping mechanism (5) comprises: A first jacket (501), the first jacket (501) being fixedly arranged inside the frame (1); A second jacket (502), wherein the second jacket (502) is connected to the first jacket (501) via bolts.

4. The calender for producing an environmentally friendly elastic PVC film according to claim 1, characterized in that: The first motor (301) is a reduction motor.

5. The calender for producing an environmentally friendly elastic PVC film according to claim 1, characterized in that: A mounting seat (6) is provided on the outer side of the first motor (301), and the mounting seat (6) is fixedly arranged inside the frame (1).

6. The calender for producing an environmentally friendly elastic PVC film according to claim 3, characterized in that: A rubber layer (7) is provided on the inner sides of the first jacket (501) and the second jacket (502).

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