Vertical longitudinal stretching unit and film longitudinal stretching machine

Abstract

The invention provides a vertical longitudinal stretching unit and a film longitudinal stretching machine. The invention provides a vertical longitudinal stretching unit. The vertical longitudinal stretching unit comprises a vertical guide roller assembly, a driving assembly and a transmission assembly. The vertical guide roller assembly comprises a guide roller frame and a guide roller array installed on the guide roller frame. The guide roller array comprises two rows of guide rollers which are arranged in a staggered manner, and each row of guide rollers comprises N guide rollers; the driving assembly comprises a mounting frame and a motor array; the motor array is installed on the side, away from the guide roller frame, of the installation frame. The motor array is matched with the guide roller array, the motor array comprises two rows of motors which are arranged in a staggered manner, and each row of motors comprises N motors; the transmission assembly comprises a universal coupling array matched with the guide roller array; and each motor transmits torque to the corresponding guide roller through one universal coupling in the universal coupling array. The vertical type longitudinal stretching unit and the thin film longitudinal stretching machine are small in occupied area, high in driving capacity and high in productivity.

Description

Technical Field

[0001] The present application relates to the technical field of plastic film stretching, and in particular to a vertical longitudinal stretching unit and a film longitudinal stretching machine. Background Art

[0002] Plastic film has gradually become an indispensable material in modern industry and daily life due to its versatility and cost-effectiveness. In recent years, with the emergence of new equipment, the production process of plastic film has become more and more perfect, and the quality of the produced plastic film has become higher and higher.

[0003] The longitudinal stretching unit in the film longitudinal stretching machine plays an important role in the manufacture of high-performance plastic films. The longitudinal stretching unit can longitudinally stretch the plastic film. Currently, the most common longitudinal stretching unit is a horizontal longitudinal stretching unit, which occupies a large area. Summary of the invention

[0004] In view of this, the present application provides a vertical longitudinal stretching unit and a film longitudinal stretching machine, so as to reduce the floor space occupied by the longitudinal stretching unit and improve the driving capacity of the longitudinal stretching unit.

[0005] Specifically, the present application is implemented through the following technical solutions:

[0006] The first aspect of the present application provides a vertical longitudinal stretching unit, which includes a vertical guide roller assembly, a driving assembly and a transmission assembly; wherein:

[0007] The vertical guide roller assembly includes a guide roller frame and a guide roller array mounted on the guide roller frame; wherein the guide roller array includes two rows of guide rollers arranged in a staggered manner, and each row of guide rollers includes N guide rollers;

[0008] The driving assembly includes a mounting frame and a motor array; wherein the motor array is mounted on a side of the mounting frame away from the guide roller frame; the motor array matches the guide roller array, and the motor array includes two rows of motors arranged in an alternating manner, and each row of motors includes N motors;

[0009] The transmission assembly includes a universal coupling array that matches the guide roller array, and each motor transmits torque to the corresponding guide roller through a universal coupling in the universal coupling array; wherein the motor array and the guide roller array have a matching relationship in position, and the matching relationship is determined based on the allowable working range of the universal coupling and the preset roller gap range between two adjacent guide rollers.

[0010] The second aspect of the present application provides a film longitudinal stretching machine, which includes a plurality of longitudinal stretching units, at least one of the plurality of longitudinal stretching units is any vertical longitudinal stretching unit provided in the first aspect of the present application.

[0011] The vertical longitudinal stretching machine unit provided in the present application is provided with a vertical guide roller assembly, a drive assembly and a transmission assembly, and a guide roller frame and a guide roller array installed on the guide roller frame are provided on the vertical guide roller assembly, a mounting frame and a motor array installed on the mounting frame are provided on the drive assembly, and a universal coupling array matching the guide roller array is provided on the transmission assembly, and the guide roller array includes two rows of guide rollers arranged in an alternating manner, each row of guide rollers includes N guide rollers, and the motor array is matched with the guide roller array, so that a motor can be connected to its corresponding guide roller through a universal coupling device, and thus, since both the guide roller array and the motor array are arranged vertically, the floor space can be reduced, and thus a high-power motor with a larger motor size can be used, which can improve the overall power of the drive assembly, improve its driving ability, and thus improve production capacity.

[0012] In addition, the vertical longitudinal stretching unit provided by the present application is provided with a guide roller frame including a base, and a pair of fixed side plates and a pair of movable side plates arranged on the base, a row of guide rollers in the guide roller array is installed on the pair of fixed side plates, another row of guide rollers in the guide roller array is installed on the pair of movable side plates, and the pair of movable side plates can be moved in a direction away from or close to the pair of fixed side plates, and the movable stroke of the pair of movable side plates is equal to 2 times the spacing in the width direction between a row of guide rollers installed on the pair of movable side plates and a row of motors corresponding to the row of guide rollers, so that during use, the pair of movable side plates can be in an un-stretched state, and when the guide rollers need to be disassembled, the pair of movable side plates can be in a stretched state, so that the disassembly and assembly of the guide rollers can be facilitated. In addition, by making the movable stroke of the pair of movable side plates equal to 2 times the spacing in the width direction between a row of guide rollers installed on the pair of movable side plates and a row of motors corresponding to the row of guide rollers, the axis angle of the universal coupling is within the allowable range of work regardless of whether the pair of movable side plates are in a stretched state or a unstretched state.

[0013] Furthermore, the vertical longitudinal stretching unit provided in the present application is configured with a first support beam and a second support beam between a first fixed side plate and a motor mounting plate of a pair of fixed side plates close to the drive assembly, and the first support beam and the second support beam are made of equal length, and the first support beam and the second support beam are arranged at diagonal positions of the first fixed side plate. In this way, not only the overall stiffness of the vertical longitudinal stretching unit can be improved to ensure the stability of the equipment during operation, but also the motor mounting plate can be kept parallel to the first fixed side plate to the greatest extent, thereby ensuring the parallelism of the motor output shaft and the guide roller shaft head, thereby meeting the Z-shaped or W-shaped layout requirements of the universal coupling, so that the universal coupling can achieve equal angular velocity transmission and ensure the installation and positioning accuracy of the drive assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of a vertical longitudinal stretching unit shown as an exemplary embodiment of the present application;

[0015] Figure 2 A schematic diagram of a side plate on a guide roller frame shown in an exemplary embodiment of the present application;

[0016] Figure 3 A schematic diagram of a side plate on a guide roller frame shown in another exemplary embodiment of the present application;

[0017] Figure 4A A perspective view of a vertical guide roller assembly according to an exemplary embodiment of the present application;

[0018] Figure 4B An exploded view of a vertical guide roller assembly shown as an exemplary embodiment of the present application;

[0019] Figure 5 A diagram showing the position relationship between a guide roller array and a motor array before and after a pair of movable side plates are pulled apart, showing an exemplary embodiment of the present application;

[0020] Figure 6 A schematic diagram of a mounting frame shown as an exemplary embodiment of the present application;

[0021] Figure 7 A schematic diagram of a drive assembly according to an exemplary embodiment of the present application;

[0022] Figure 8 A position relationship diagram of a guide roller array and a motor array when a pair of movable side plates are not pulled apart is shown in an exemplary embodiment of the present application;

[0023] Fig. 9 A position relationship diagram of a guide roller array and a motor array when a pair of movable side plates are not pulled apart is shown in another exemplary embodiment of the present application;

[0024] Fig.10This is a schematic diagram of a motor mounting plate shown as an exemplary embodiment of the present application.

[0025] Description of reference numerals:

[0026] 1: Vertical guide roller assembly;

[0027] 11: guide roller frame;

[0028] 111: base;

[0029] 112: a pair of side panels;

[0030] 1121: a pair of fixed side panels;

[0031] 1122: a pair of movable side panels;

[0032] 12: guide roller array;

[0033] 13: rubber roller array;

[0034] 14: Cylinder;

[0035] 2: Drive components;

[0036] 21: Mounting frame;

[0037] 211: Sun-shaped base;

[0038] 212: fixed seat;

[0039] 213: Motor mounting plate;

[0040] 2131: Lifting hole;

[0041] 2132: Sink or through hole;

[0042] 214: Support structure;

[0043] 22: Motor array;

[0044] 3: Transmission components;

[0045] 31: Universal coupling array;

[0046] 41: first support beam;

[0047] 42: Second support beam. DETAILED DESCRIPTION

[0048] Here, exemplary embodiments are described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application.

[0049] The terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The singular forms of "a", "said" and "the" used in this application are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used in this article refers to and includes any or all possible combinations of one or more associated listed items.

[0050] It should be understood that although the terms first, second, third, etc. may be used in the present application to describe various information, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0051] Specific embodiments are given below to introduce the technical solution of the present application in detail.

[0052] Figure 1 This is a schematic diagram of a vertical longitudinal stretching unit shown in an exemplary embodiment of the present application. Figure 1 The vertical stretching machine unit provided in this embodiment includes a vertical guide roller assembly 1, a drive assembly 2 and a transmission assembly 3; wherein,

[0053] The vertical guide roller assembly 1 includes a guide roller frame 11 and a guide roller array 12 mounted on the guide roller frame 11; wherein the guide roller array 12 includes two rows of guide rollers arranged in a staggered manner, and each row of guide rollers includes N guide rollers;

[0054] The driving assembly 2 includes a mounting frame 21 and a motor array 22; wherein the motor array 22 is mounted on a side of the mounting frame 21 away from the guide roller frame 11; the motor array 22 matches the guide roller array 12, and the motor array 22 includes two rows of motors arranged in an alternating manner, and each row of motors includes N motors;

[0055] The transmission assembly 3 includes a universal coupling array 31 that matches the guide roller array 12, and each motor transmits torque to the corresponding guide roller through a universal coupling in the universal coupling array 31; wherein the motor array and the guide roller array have a matching relationship in position, and the matching relationship is determined based on the allowable working range of the universal coupling and the preset roller gap range between two adjacent guide rollers.

[0056] Please note that, please refer to Figure 1As the core functional component of the vertical longitudinal stretching unit, the vertical guide roller assembly 1 is in direct contact with the stretched material during the material stretching process, guiding and supporting the stretched material to ensure that the stretched material can maintain the correct direction and orientation during the stretching process.

[0057] The vertical guide roller assembly 1 includes a guide roller frame 11 and a guide roller array 12 installed on the guide roller frame 11 .

[0058] Specifically, the guide roller frame 11 may include a base 111 and a pair of side plates 112 disposed on the base 111. The pair of side plates 112 includes two side plates disposed opposite to each other.

[0059] For details, please refer to Figure 1 In a possible implementation, the base 111 is composed of two parallel horizontal beams and two parallel longitudinal beams (it should be noted that in this application, for the convenience of distinction, the beams along the length direction are recorded as horizontal beams, and the beams along the width direction are recorded as longitudinal beams), and the two horizontal beams and the two longitudinal beams form a rectangular frame structure. In a specific implementation, one of the longitudinal beams can be set at the end of the two horizontal beams, and the other longitudinal beam can be set at a certain middle position between the two horizontal beams to form a stable base structure.

[0060] In specific implementation, the cross beam and the longitudinal beam can be connected together by fasteners, or by welding, which is not limited in this embodiment. In addition, the material of the base 111 is also selected according to actual needs, which is not limited in this embodiment.

[0061] Figure 2 A schematic diagram of a side plate on a guide roller frame shown in an exemplary embodiment of the present application. Figure 3 This is a schematic diagram of a side plate on a guide roller frame according to another exemplary embodiment of the present application. Figure 2 and Figure 3 , Figure 2 and Figure 3 A schematic diagram of one side plate constituting a pair of side plates 112 is shown. It can be understood that the two side plates constituting the pair of side plates 112 have the same appearance. The pair of side plates 112 will be explained below by taking one side plate as an example.

[0062] Please refer to Figure 2 and Figure 3 , there are two rows of fastener mounting holes on the side plate for mounting two rows of guide rollers. For details, please refer to Figure 2 ,exist Figure 2 In the example shown, the notches of the fastener mounting holes face inwards. Figure 3 In the example shown, the notch of the fastener mounting hole faces outward (it should be noted that Figure 2 and Figure 3 It is only used to illustrate the direction of the notch, and does not limit the installation position of the guide roller. The installation position of the guide roller matches the motor array. When the position of the motor array remains unchanged, the installation position of the guide roller also remains unchanged. ).

[0063] Please refer to Figure 2 When the notch of the fastener mounting hole faces inward, each side panel can be a spliced ​​side panel formed by splicing two base panels, and each base panel is provided with a row of fastener mounting holes. Figure 3 Furthermore, when the notch of the fastener installation opening faces outward, the side panel can be a spliced ​​side panel formed by splicing two substrates, each substrate being provided with a row of fastener installation holes, or it can be a whole large substrate, and the large substrate is provided with two rows of fastener installation holes.

[0064] It should be noted that when each side panel is composed of a substrate, the substrate is fixed. Further, when each side panel is a spliced ​​side panel formed by splicing two substrates, that is, when a pair of side panels 112 is composed of two pairs of substrates, the two pairs of substrates can perform relative opening and closing movements, that is, if one pair of substrates is fixed, the other pair of substrates can move.

[0065] Please refer to Figure 2 and Figure 3 ,exist Figure 2 In the example shown, the notch of the fastener mounting hole faces inwards. In order to facilitate the disassembly and assembly of the guide roller, the two pairs of substrates can perform relative opening and closing movements, with one pair of substrates being fixed and the other pair of substrates being movable. Figure 3 In the example shown, when the side panel is composed of two base plates, at this time, since the notches of the fastener mounting holes face outward, the guide rollers can be directly disassembled and assembled from both sides (it should be noted that before disassembling the guide rollers, the outer rubber rollers need to be removed first). Therefore, at this time, the two pairs of base plates can perform relative opening and closing movements or not.

[0066] Please refer to Figure 2 and Figure 3 The direction of the notch is set according to actual needs and is not limited in this embodiment.

[0067] Preferably, Figure 4A A three-dimensional view of a vertical guide roller assembly shown as an exemplary embodiment of the present application. Figure 4B This is an exploded view of a vertical guide roller assembly according to an exemplary embodiment of the present application. Figure 4A and Figure 4B ,exist Figure 4A and Figure 4BIn the example shown, the guide roller frame 11 in the vertical guide roller assembly 1 includes a base 111, and a pair of fixed side plates 1121 and a pair of movable side plates 1122 arranged on the base 111; wherein the pair of movable side plates 1122 can move in a direction away from or close to the pair of fixed side plates 1121; one row of guide rollers in the guide roller array 12 is installed on the pair of fixed side plates 1121, and another row of guide rollers in the guide roller array 12 is installed on the pair of movable side plates 1122;

[0068] The movable stroke of the pair of movable side plates is equal to twice the spacing in the width direction between a row of guide rollers installed on the pair of movable side plates and a row of motors corresponding to the row of guide rollers.

[0069] For details, please continue to refer to Figure 4A and Figure 4B A pair of fixed side panels 1121 and a pair of movable side panels 1122 are both arranged on the longitudinal beams in the base 111, wherein a spliced ​​side panel is formed by splicing a fixed side panel and a movable side panel, and a pair of fixed side panels 1121 and a pair of movable side panels 1122 together constitute two spliced ​​side panels, and the two spliced ​​side panels are respectively arranged on the two cross beams of the base 111 of the guide roller frame 11 to form a pair of side panels 112.

[0070] It can be understood that, in one embodiment, a pair of fixed side plates 1121 can be arranged near the strip inlet side, and a pair of movable side plates 1122 can be arranged near the strip outlet side; in another embodiment, a pair of fixed side plates 1121 can be arranged near the strip outlet side, and a pair of movable side plates 1122 can be arranged near the strip inlet side. In this embodiment, no limitation is imposed on this.

[0071] Please refer to Figure 4B In a possible implementation, a pair of side plates 112 are mounted on a side plate mounting plate, a pair of movable side plates 1122 and the side plate mounting plate are mounted on a slideway, and in addition, a transmission side ( Figure 4B The side panel mounting plate (right side in the figure) is fixed to the base by welding or bolting. Further, preferably, the non-drive side (also called the operating side, Figure 4B The side panel mounting plate (on the left side in the middle) is placed on a smooth plate (wherein the smooth plate refers to a plate with a small friction coefficient, which can be a stainless steel plate, a copper plate, a wear-resistant plastic plate, etc.), the smooth plate and the base are fixed with countersunk screws, and the fastener mounting surface is not higher than the smooth plate surface.

[0072] It should be noted that, referring to the above description, since a smooth plate is arranged under the side plate mounting plate on the operating side, the side plate mounting plate on the transmission side is similar to the side plate mounting plate on the operating side, but not at the same height. In addition, the side plate mounting plate on the transmission side can also be made into one piece with the base.

[0073] It should be noted that after the smooth plate is allowed to be at a temperature higher than room temperature, the guide roller drives the side plate on the non-drive side to expand along the axial direction of the guide roller, thereby preventing the guide roller from generating curvature due to thermal expansion and constraints on both ends, affecting parallelism and further affecting the thickness uniformity on the cross section of the strip.

[0074] Figure 5 This is a diagram showing the position relationship between the guide roller array and the motor array before and after a pair of movable side plates are pulled apart, according to an exemplary embodiment of the present application. Figure 5 , the movable stroke of the pair of movable side plates is equal to twice the distance in the width direction between a row of guide rollers installed on the pair of movable side plates and a row of motors corresponding to the row of guide rollers. In this way, whether before or after the pair of movable side plates are pulled apart, the axis angle of the universal coupling is within the allowable working range.

[0075] Specifically, the guide roller array 12 includes two rows of guide rollers arranged in a staggered manner, and each row of guide rollers includes N guide rollers. It can be understood that the number of guide rollers included in each row of guide rollers is set according to actual needs and is not limited here. For example, in a possible implementation, each row of guide rollers may include three guide rollers, four guide rollers, and five guide rollers.

[0076] It should be noted that the guide rollers in the two columns of the guide roller array 12 are arranged in an interlaced manner. For example, in one embodiment, in each column of guide rollers, the distance between two adjacent guide rollers is the same; further, for the first column of guide rollers and the second column of guide rollers, they are staggered by a certain distance in the direction of the row (the width direction in the figure), and staggered by a certain distance in the direction of the column (the height direction in the figure), so as to form two columns of guide rollers arranged in an interlaced manner.

[0077] The drive assembly 2 is introduced below. Specifically, the drive assembly 2 serves as the power source of the vertical longitudinal stretching unit and provides the required power and torque for material stretching.

[0078] Specifically, the drive assembly 2 includes a mounting frame 21 and a motor array 22. The motor array 22 is installed on a side of the mounting frame 21 away from the guide roller frame 11. The motor array 22 matches the guide roller array 12 in the vertical guide roller assembly 1, and includes two groups of motors arranged in an alternating manner, and each column of motors includes N motors.

[0079] It should be noted that the specific structural form of the mounting bracket 21 is set according to actual needs and is not limited in this embodiment.

[0080] For example, Figure 6 This is a schematic diagram of a mounting frame according to an exemplary embodiment of the present application. Figure 6 ,exist Figure 6In the example shown, the mounting frame 21 includes a motor mounting plate, a first ground mounting plate, a support beam and a second ground mounting plate, wherein the first ground mounting plate is used to support and fix the motor mounting plate, the support beam is used to support the motor mounting plate so that it is in a vertical direction, and the second ground mounting plate is used to support and fix the support beam.

[0081] Optionally, in a possible implementation, the mounting frame 21 may include a motor mounting plate, a support structure and a base; the motor mounting plate is fixed on the base in a manner perpendicular to the base, and the support structure is used to support the motor mounting plate.

[0082] It should be noted that the specific structural forms of the base and the support structure are set according to actual needs and are not limited in this embodiment. For example, in one possible implementation, the base can be a base composed of a whole plate, and the support structure can be a triangular plate, and the two right-angled sides of the triangular plate are respectively attached to the base and the motor mounting plate.

[0083] Preferably, Figure 7 This is a schematic diagram of a drive assembly according to an exemplary embodiment of the present application. Figure 7 In a possible implementation, the mounting frame 21 includes a Japanese-shaped base 211, a fixing base 212, a motor mounting plate 213 and a supporting structure 214; wherein,

[0084] The fixing seat 212 is installed at the internal crossbeam position of the I-shaped base 211; the fixing seat 212 is used to fix and support the motor mounting plate 213;

[0085] The motor mounting plate 213 is fixed on the fixing seat 212 to provide a mounting space for the motor array 22;

[0086] One end of the support structure 214 is connected to the motor mounting plate 213, and the other end is connected to the I-shaped base 211; wherein the support structure 214 is used to support the motor mounting plate 213 to prevent the motor mounting wall panel from tipping over.

[0087] It should be noted that the mounting frame 21 can provide a stable support platform for the motor array 22. A solid mounting frame 21 can ensure that the motor array 22 does not move during operation, thereby ensuring the safety of the motor array 22. Therefore, the material used to make the mounting frame 21 needs to meet a certain rigidity. For example, in one embodiment, the mounting frame 21 can be made of steel.

[0088] It should be noted that the "日" - shaped base 211 consists of a rectangular frame and an internal cross - beam. The internal cross - beam divides the rectangular frame into two "口" - shaped areas. These two "口" - shaped areas are the installation working platforms on both sides of the motor mounting plate 213, which can provide standing and operating space for the operator to install, maintain, and inspect the motor.

[0089] Specifically, the fixing seat 212 is an L - shaped fixing seat or a groove - like fixing seat. The fixing seat 212 is installed at the position of the internal cross - beam of the "日" - shaped base 211. There is a mounting plate at the position of the internal cross - beam of the "日" - shaped base 211, and the fixing seat 212 can be fixedly installed on the mounting plate. Further, the motor mounting plate 213 is fixed on the fixing seat 212 to support the motor mounting plate 213 and ensure the stability of the motor.

[0090] It should be noted that the fixing seat 212 can be fixed to the mounting plate at the position of the internal cross - beam by means of bolt mechanical connection, welding, etc. In this embodiment, the fixing method of the fixing seat 212 is not limited.

[0091] Further, one end of the support structure 214 is connected to the motor mounting plate 213, and the other end is connected to the "日" - shaped base 211. The support structure 214 is used to support the motor mounting plate 213 to effectively prevent the motor mounting plate 213 from tipping over.

[0092] Specifically, the support structure 214 can be located on the side of the motor mounting plate 213 where the motor is installed, or on the side of the motor mounting plate 213 where the motor is not installed. In this embodiment, it is not limited. In addition, the support structure 214 can support the middle part of the motor mounting plate 213 or the two sides of the motor mounting plate 213. In this embodiment, it is not limited. In addition, the support structure 214 can be a support member in the form of an inclined support, a vertical support, a side support, a support rib plate, etc. In this embodiment, its structural form is not limited. In addition, the support structure 214 can be composed of multiple support members. In this embodiment, the specific number of multiple support members is not limited. In addition, when the support structure 214 is composed of multiple support members, their installation positions and structural forms can be the same or different. In this embodiment, it is not limited.

[0093] Optionally, in one possible implementation, please continue to refer to Figure 7, in a possible implementation, the support structure 214 may include a first diagonal support and a second diagonal support. The first diagonal support and the second diagonal support are respectively installed on both sides of the motor mounting plate 213 in the width direction. Each diagonal support is installed on the side of the motor mounting plate 213 where the motor array 22 is not installed. Each diagonal support forms a triangular structure with the vertical plane where the motor mounting plate 213 is located and the horizontal plane where the "day"-shaped base 211 is located.

[0094] Specifically, by installing the diagonal support on the side where the motor is not installed, it is possible to avoid the diagonal support affecting the motor array 22 and avoid the diagonal support affecting the disassembly and assembly of the motor array 22.

[0095] In addition, by making the first diagonal support and the second diagonal support form a triangular structure with the vertical plane where the motor mounting plate 213 is located and the horizontal plane where the "day"-shaped base is located, a strong supporting effect can be formed on the motor mounting plate 213.

[0096] It can be understood that, in order to better exert the supporting effect of the triangular structure, the connection position of the first support and the second support at the end connected to the motor mounting plate 213 needs to be higher than the center of gravity height of the motor mounting plate 213 and the motor array 22. In specific implementation, the specific connection position is set according to the actual situation, and it is not limited in this embodiment. For example, in one embodiment, the connection positions of the first diagonal support and the second diagonal support with the motor mounting plate 213 are located at half of the motor mounting plate 213, and the number of motors above the connection positions of the first diagonal support and the second diagonal support with the motor mounting plate 213 is not higher than two. For another example, in another embodiment, the included angle between the first diagonal support and the second diagonal support and the horizontal plane is 60°, and this angle can provide the best supporting stability.

[0097] It should be noted that the fixed seat 212 and the support structure 214 jointly support the motor mounting plate 213, and the two form a double-insurance design, which can prevent the motor mounting plate from tipping over and ensure the structural safety and reliability of the drive assembly 2. In addition, placing the diagonal support on the side of the motor mounting plate 213 where the motor is not installed (i.e., the diagonal support is on the side of the motor output shaft) does not affect the disassembly, assembly, wiring and other operations of the motor, and is convenient for maintaining the motor. Further, installing the diagonal support on the outermost side of the motor mounting plate 213 can ensure the largest supporting area and improve the supporting stability.

[0098] Please continue to refer to Figure 7It can be understood that the motor array 22 matches the guide roller array 12, and this matching includes both a matching relationship in quantity and a matching relationship in position. That is, one motor corresponds to one guide roller, and the matching relationship between the motor array and the guide roller array in position is determined based on the allowable working range of the universal coupling and the preset roller gap range of two adjacent guide rollers. That is, the matching relationship between the two in position needs to meet the allowable working range of the universal coupling, and also requires that the motors in the same row do not interfere with each other, the motors in the same column do not interfere with each other, and the roller gaps of two adjacent motors (same row, different columns) are within the preset roller gap range of two adjacent guide rollers (that is, the roller gaps of two adjacent motors are within the preset range). A specific embodiment will be given below to explain in detail the matching relationship between the motor array and the guide roller array in position, which will not be repeated here.

[0099] Furthermore, the vertical longitudinal stretching unit provided in the present application also includes a transmission assembly 3, which serves as a bridge between the drive assembly 2 and the guide roller array 12, and is responsible for transmitting the power and torque generated by the motor array 22 in the drive assembly 2 to the guide roller. Figure 1 The transmission assembly 3 includes a universal coupling array 31, which is matched with the guide roller array 12, and each motor transmits torque to the corresponding guide roller through a universal coupling in the universal coupling array 31.

[0100] The vertical longitudinal stretching unit provided in the present embodiment is provided with a vertical guide roller assembly, a drive assembly and a transmission assembly, and a guide roller frame and a guide roller array installed on the guide roller frame are provided on the vertical guide roller assembly, a mounting frame and a motor array installed on the mounting frame are provided on the drive assembly, and a universal coupling array matching the guide roller array is provided on the transmission assembly, and the guide roller array includes two rows of guide rollers arranged in an alternating manner, each row of guide rollers includes N guide rollers, and the motor array is matched with the guide roller array, so that a motor can be connected to its corresponding guide roller through a universal coupling device, and thus, since both the guide roller array and the motor array are arranged vertically, the floor space occupied can be reduced. In addition, in the vertical longitudinal stretching unit provided in the present embodiment, the installation space of the guide roller array and the motor array is not limited, and a high-power motor with a larger motor size can be used, which can improve the overall power of the drive assembly, improve its driving ability, and thus improve the production capacity.

[0101] Two specific embodiments are given below to illustrate in detail the positional relationship between the guide roller array and the motor array.

[0102] Specifically, Figure 8 This is a positional relationship diagram of a guide roller array and a motor array when a pair of movable side plates are not pulled apart, as shown in an exemplary embodiment of the present application. Figure 8 ,exist Figure 8 In the example shown, each column of guide rollers includes an even number of guide rollers; wherein,

[0103] The distance between the two rows of guide rollers in the width direction is equal to n; the distance between the two rows of guide rollers in the height direction is equal to k; the distance between two adjacent guide rollers in each row of guide rollers is equal to 2k; wherein the values ​​of n and k satisfy that the roller gap range between two adjacent guide rollers is within a preset range;

[0104] The spacing between the first column of motors and a column of guide rollers corresponding to the column of motors in the two columns of motors in the width direction is equal to m1, and the spacing between the second column of motors and a column of guide rollers corresponding to the column of motors in the width direction is equal to m2;

[0105] Each column of motors includes a first group of motors and a second group of motors, and the first group of motors and the second group of motors are symmetrically arranged about a designated center line; the designated center line is a symmetry line of two guide rollers in the middle of a column of guide rollers corresponding to the column of motors; the distance in height direction between the target motor closest to the designated center line in each column of motors and its corresponding target guide roller is a1; the spacing between two adjacent motors in each column of motors is equal to B; wherein B=2k+2a1; wherein m1, m2, and a1 are determined based on the allowable working range of the universal joint.

[0106] Please refer to Figure 8 ,exist Figure 8 In the example shown, each row of guide rollers includes 4 guide rollers. Figure 8 In the figure, the letter R represents the guide roller, the letter M represents the motor, i represents the row, j represents the column, the value of i is 1 to 4, the value of j is 1 to 2, and in addition, the motor Mij corresponds to the guide roller Rij, that is, in Figure 8 In the example shown, R11, R21, R31 and R41 are guide rollers in the first column, R12, R22, R32 and R42 are guide rollers in the second column, M11, M21, M31 and M41 are motors in the first column, and M12, M22, M32 and M42 are motors in the second column.

[0107] In each row of guide rollers, the distance between two adjacent guide rollers in the height direction is equal, which is equal to 2k. In addition, the distance between the first row of guide rollers and the second row of guide rollers in the width direction is n, and the distance between them in the height direction is k. In which, n and k are based on the roller gap range between two adjacent guide rollers (i is the same, j is different) being within a preset range, wherein the preset range is set according to actual needs and is not limited in this embodiment. For example, in one embodiment, the preset range is within 16 to 19 mm (excluding 16 mm and 19 mm).

[0108] In addition, please refer to Figure 8For a row of motors, it is divided into two groups by the center line of the two guide rollers in the middle of the corresponding row of guide rollers (for the convenience of distinction, the center line is recorded as a specific center line). For the convenience of explanation, they are recorded as the first group of motors and the second group of motors respectively; for example, in Figure 8 In the example shown, for the first column of motors, the two guide rollers in the middle of the corresponding column of guide rollers are R21 and R31, respectively. The center lines of the two guide rollers are shown in the figure. Further, the first group of motors includes M11 and M21, and the second group of motors includes M31 and M41. The first group of motors and the second group of motors are arranged symmetrically about the specified center line, that is, M11 and M41 are arranged symmetrically about the specified center line, and M21 and M31 are arranged symmetrically about the specified center point. Further, the distance in the height direction between the motor closest to the specified center line in each column of motors (referred to as the target motor) and its corresponding guide roller (referred to as the target guide roller) is a1; that is, the distance in the height direction between M31 and R31 is a1, so that the distance between M31 and M21 is equal to 2a1+2k, that is, the distance between two adjacent motors in each column of motors is 2k+2a1. It should be noted that a1 is determined based on the allowable working range of the universal coupling.

[0109] For further information, please refer to Figure 8 , the spacing between the first column of motors and the corresponding column of guide rollers in the two columns of motors in the width direction is equal to m1, and the spacing between the second column of motors and the corresponding column of guide rollers in the width direction is equal to m2. Among them, m1 and m2 can be the same or different, and are not limited in this embodiment. In addition, m1 and m2 are determined based on the working allowable range of the universal coupling.

[0110] It can be understood that the value of m1+m2+n needs to ensure that the motors in the same row do not interfere with each other, and the value of 2k+2a1 needs to ensure that the motors in the same column do not interfere with each other. In addition, when the above requirements are met, each value should be taken at or close to the lower limit to make the motor mounting plate smaller and the motor space layout compact.

[0111] Fig. 9 This is another exemplary embodiment of the present application, the position relationship diagram of the guide roller array and the motor array when a pair of movable side plates are not pulled apart. Please refer to Fig. 9 ,exist Fig. 9 In the example shown, each column of guide rollers includes an odd number of guide rollers; wherein,

[0112] Each row of guide rollers includes an odd number of guide rollers; wherein,

[0113] The distance between the two rows of guide rollers in the width direction is equal to n; the distance between the two rows of guide rollers in the height direction is equal to k; the distance between two adjacent guide rollers in each row of guide rollers is equal to 2k; wherein the values ​​of n and k satisfy that the roller gap range between two adjacent guide rollers is within a preset range;

[0114] The spacing between the first column of motors and a column of guide rollers corresponding to the column of motors in the two columns of motors in the width direction is equal to m1, and the spacing between the second column of motors and a column of guide rollers corresponding to the column of motors in the width direction is equal to m2;

[0115] The distance in height direction between the installation position of the central motor at the center position in each column of motors and the installation position of the guide roller corresponding to the central motor is 0; the other motors in each column of motors except the central motor are arranged symmetrically about the central motor; the distance between two adjacent motors in each column of motors is equal to A; wherein A=2k+A1; m1, m2 and A1 are determined based on the allowable working range of the universal joint.

[0116] For details, please refer to Fig. 9 ,exist Fig. 9 In the example shown, each row of guide rollers includes 5 guide rollers. Fig. 9 In the figure, the letter R represents the guide roller, the letter M represents the motor, i represents the row, j represents the column, the value of i is 1 to 5, and the value of j is 1 to 2. In addition, the motor Mij corresponds to the guide roller Rij, that is, in Fig. 9 In the example shown, R11, R21, R31, R41 and R51 are the first column guide rollers, R12, R22, R32, R42 and R52 are the second column guide rollers, M11, M21, M31, M41 and M51 are the first column motors, and M12, M22, M32, M42 and M52 are the second column motors.

[0117] In each row of guide rollers, the distance between two adjacent guide rollers in the height direction is equal, which is equal to 2k. In addition, the distance between the first row of guide rollers and the second row of guide rollers in the width direction is n, and the distance between them in the height direction is k, wherein n and k are based on the roller gap range between two adjacent guide rollers (i is the same, j is different) being within a preset range, wherein the preset range is set according to actual needs and is not limited in this embodiment. For example, in one embodiment, the preset range is within 16 to 19 mm (excluding 16 mm and 19 mm).

[0118] In addition, please refer to Fig. 9For a row of motors, the distance in the height direction between the installation position of the central motor at the center and the installation position of the guide roller corresponding to the central motor is 0, that is, the distance in the height direction between M31 and R31 is 0, and the distance in the height direction between M32 and R32 is 0. Furthermore, the other motors are arranged symmetrically about the central motor, that is, M11 and M51 are arranged symmetrically about M31, M21 and M41 are arranged symmetrically about M31; that is, M12 and M52 are arranged symmetrically about M32, and M22 and M42 are arranged symmetrically about M32.

[0119] Furthermore, the distance between two adjacent motors in each column of motors is equal to A; wherein A=2k+A1; and A1 is determined based on the allowable working range of the universal coupling.

[0120] In addition, please continue to refer to Fig. 9 , the spacing between the first column of motors and the corresponding column of guide rollers in the two columns of motors in the width direction is equal to m1, and the spacing between the second column of motors and the corresponding column of guide rollers in the width direction is equal to m2. Among them, m1 and m2 can be the same or different, and are not limited in this embodiment. In addition, m1 and m2 are determined based on the working allowable range of the universal coupling.

[0121] It can be understood that the value of m1+m2+n needs to ensure that the motors in the same row do not interfere with each other, and the value of 2k+A1 needs to ensure that the motors in the same column do not interfere with each other. In addition, when the above requirements are met, each value should be taken at or close to the lower limit to make the motor mounting plate smaller and the motor space layout compact.

[0122] The above two embodiments provide two positional arrangements of guide roller arrays and motor arrays. In this way, by accurately setting the positional relationship between the guide roller array and the motor array, on the one hand, the compactness of the equipment can be improved, and the volume of the vertical longitudinal stretching unit can be reduced, saving floor space, which is beneficial to the layout and integration of the production line. On the other hand, n and k are determined based on the preset roller gap range, and key parameters such as m1, m2, a1 or A1 are determined based on the allowable working range of the universal joint, so that the transmission between each motor and the guide roller is more flexible and adaptable, so as to absorb slight errors or vibrations in the mechanical system, ensure the smooth operation of the entire stretching process, and extend the service life of the equipment.

[0123] It can be understood that the pair of fixed side plates 1121 is composed of two opposite fixed side plates. For the convenience of distinction, the fixed side plate close to the driving assembly 2 is recorded as the first fixed side plate, and the other fixed side plate away from the driving assembly 2 is recorded as the second fixed side plate. Figure 1 and Figure 6In a possible implementation, the vertical longitudinal stretching unit also includes a first support beam 41 and a second support beam 42; wherein the first support beam 41 and the second support beam 42 are arranged between the first fixed side plate of the pair of fixed side plates 1121 close to the drive assembly 2 and the motor mounting plate 213; the first support beam 41 and the second support beam 42 are of equal length, and a first position where the first support beam 41 is fixedly connected to the first fixed side plate and a second position where the second support beam 42 is fixedly connected to the first fixed side plate are located at diagonal positions of the first fixed side plate.

[0124] Please also refer to Figure 1 and Figure 6 Two support beams are arranged between the first fixed side plate and the motor mounting plate 213 . The two support beams are of equal length and are located at diagonal positions of the first fixed side plate.

[0125] Please refer to Figure 4A A support beam may also be provided between a pair of side plates of the guide roller frame 11 to further enhance the rigidity of the overall equipment.

[0126] The vertical longitudinal stretching machine unit provided in this embodiment is configured by arranging a first support beam and a second support beam between a first fixed side plate and a motor mounting plate of a pair of fixed side plates close to the drive assembly, and making the first support beam and the second support beam equal in length and arranged at diagonal positions of the first fixed side plate. In this way, it can be ensured to the greatest extent that the motor mounting plate remains parallel to the first fixed side plate, thereby ensuring the parallelism of the motor output shaft and the guide roller shaft head, thereby satisfying the Z-shaped or W-shaped arrangement requirements of the universal coupling, so that the universal coupling can achieve equal angular velocity transmission. In summary, two equal-length and diagonally arranged cross beams ensure the installation and positioning accuracy of the drive assembly.

[0127] It should be noted that, please continue to refer to 4, the vertical longitudinal stretching unit provided in the present application also includes a rubber roller array 13 matching the guide roller array 12, wherein the rubber roller array 13 is installed on the guide roller frame 11, and each rubber roller is driven by a pair of cylinders 14.

[0128] For details, please refer to Figure 4A Each rubber roller is driven by a pair of cylinders, and the pair of cylinders are respectively arranged on a pair of side plates.

[0129] Fig.10 This is a schematic diagram of a motor mounting plate shown in an exemplary embodiment of the present application, please refer to Fig.10 In a possible implementation, a hoisting hole 2131 is provided on a side of the motor mounting plate 213 away from the I-shaped base 211; wherein the hoisting hole 2131 is used to hoist the motor mounting plate 213;

[0130] or,

[0131] A recessed groove or through hole 2132 is provided on one side of the motor mounting plate 213 close to the spherical base 211 , wherein the recessed groove or through hole 2132 is used to facilitate the disassembly of the longitudinal support beam close to the spherical base 211 .

[0132] For details, please refer to Fig.10 The motor mounting plate 213 is provided with two rows of staggered fastener mounting holes for mounting the motor array 22. Furthermore, in addition to the fastener mounting holes for mounting the motor array 22, a hoisting hole 2131 is also provided on the side of the motor mounting plate 213 away from the sun-shaped base 211, which can be used to hoist the motor mounting plate 213. When it is necessary to install or replace the motor in the motor array 22, the entire motor mounting plate 213 can be hoisted through the hoisting hole 2131, so that the motor mounting plate 213 can be moved to a suitable working area for operation, thereby preventing safety problems that may occur when operating in a non-operating area.

[0133] Specifically, the specific shape of the hanging hole 2131 is set according to actual needs, and is not limited in this embodiment. For example, in a possible implementation, the hanging hole can be an elliptical straight slot.

[0134] Please refer to Fig.10 In the specific implementation, there are two ways to install the motor: 1) preferably, the motor mounting plate 213 is first assembled with the motor, and the motor is hoisted as a whole through the hoisting hole 2131 on the motor mounting plate, and then connected to the mounting seat 211 on the sun-shaped base; 2) the motor mounting plate 213 is first hoisted, connected to the mounting seat 211 on the sun-shaped base, and then the motors are installed one by one. It should be noted that when installing the motor, it can be installed one by one from bottom to top, or one by one from top to bottom, or it can be installed randomly, and this is not limited in this embodiment.

[0135] In addition, a groove or through hole 2132 is also provided on one side of the motor mounting plate 213 close to the spherical base 211. It should be noted that the specific shape of the groove or through hole 2132 is set according to actual needs and is not limited in this embodiment. For example, in a possible implementation, the groove or through hole 2132 may be rectangular.

[0136] By further providing a recessed groove or through hole 2132 on one side of the motor mounting plate 213 close to the spherical base 211, the position of the support beam close to the spherical base 211 can be adjusted through the recessed groove or through hole 2132 without removing the oblique support, and the support beam can be disassembled and assembled (please refer to Figure 7 , for example, in Figure 7In the example shown, the second support beam 42 can be easily removed without removing the diagonal support through the recessed groove or through hole 2132. In this way, when it is necessary to maintain or replace the support beam disposed between the first fixed side plate and the motor mounting plate 213, the operation time can be reduced and the difficulty of the maintenance work can be reduced.

[0137] It should be noted that the specific shape of the sink or through hole 2132 is set according to actual needs and is not limited in this embodiment. For example, in a possible implementation, the sink or through hole 2132 may be in a rectangular shape.

[0138] On the basis of the above embodiments, the present application also provides a film longitudinal stretching machine, and the film longitudinal stretching machine provided by the present application is introduced below.

[0139] Specifically, the film longitudinal stretching machine provided in the present application comprises a plurality of longitudinal stretching units, at least one of the plurality of longitudinal stretching units being any one of the vertical longitudinal stretching units provided in the first aspect of the present application.

[0140] It is understandable that the film longitudinal stretching is completed by a plurality of longitudinal stretching units (including at least a cold drawing section, a hot drawing section, a heat setting section, and a cooling section). Different stretching units can select different longitudinal stretching equipment due to different motor selections. The longitudinal stretching units of the cold drawing section and the hot drawing section can use the vertical longitudinal stretching unit provided in the present application, and the remaining units use other types of vertical longitudinal stretching units, such as the first type of vertical longitudinal stretching unit, which includes a drive assembly installed on the wall panel through a sleeve.

[0141] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A vertical longitudinal stretching unit, characterized in that: The vertical longitudinal stretching unit comprises a vertical guide roller assembly, a drive assembly and a transmission assembly; wherein: The vertical guide roller assembly includes a guide roller frame and a guide roller array mounted on the guide roller frame; wherein the guide roller array includes two rows of guide rollers arranged in a staggered manner, and each row of guide rollers includes N guide rollers; The driving assembly includes a mounting frame and a motor array; wherein the motor array is mounted on a side of the mounting frame away from the guide roller frame; the motor array matches the guide roller array, and the motor array includes two rows of motors arranged in an alternating manner, and each row of motors includes N motors; The transmission assembly includes a universal coupling array that matches the guide roller array, and each motor transmits torque to the corresponding guide roller through a universal coupling in the universal coupling array; wherein the motor array and the guide roller array have a matching relationship in position, and the matching relationship is determined based on the allowable working range of the universal coupling and the preset roller gap range between two adjacent guide rollers.

2. The vertical longitudinal stretching unit according to claim 1, characterized in that: Each row of guide rollers includes an even number of guide rollers; wherein, The distance between the two rows of guide rollers in the width direction is equal to n; the distance between the two rows of guide rollers in the height direction is equal to k; the distance between two adjacent guide rollers in each row of guide rollers is equal to 2k; wherein the values ​​of n and k satisfy that the roller gap range between two adjacent guide rollers is within a preset range; The spacing between the first column of motors and a column of guide rollers corresponding to the column of motors in the two columns of motors in the width direction is equal to m1, and the spacing between the second column of motors and a column of guide rollers corresponding to the column of motors in the width direction is equal to m2; Each column of motors includes a first group of motors and a second group of motors, and the first group of motors and the second group of motors are symmetrically arranged about a designated center line; the designated center line is a symmetry line of two guide rollers in the middle of a column of guide rollers corresponding to the column of motors; the distance in height direction between the target motor closest to the designated center line in each column of motors and its corresponding target guide roller is a1; the spacing between two adjacent motors in each column of motors is equal to B; wherein B=2k+2a1; wherein m1, m2, and a1 are determined based on the allowable working range of the universal joint.

3. The vertical longitudinal stretching unit according to claim 1, characterized in that: Each row of guide rollers includes an odd number of guide rollers; wherein, The distance between the two rows of guide rollers in the width direction is equal to n; the distance between the two rows of guide rollers in the height direction is equal to k; the distance between two adjacent guide rollers in each row of guide rollers is equal to 2k; wherein the values ​​of n and k satisfy that the roller gap range between two adjacent guide rollers is within a preset range; The spacing between the first column of motors in the two columns of motors and a column of guide rollers corresponding to the column of motors in the width direction is equal to m1, and the spacing between the second column of motors and a column of guide rollers corresponding to the column of motors in the width direction is equal to m2; The distance in height direction between the installation position of the central motor at the center position in each column of motors and the installation position of the guide roller corresponding to the central motor is 0; the other motors in each column of motors except the central motor are arranged symmetrically about the central motor; the distance between two adjacent motors in each column of motors is equal to A; wherein A=2k+A1; m1, m2 and A1 are determined based on the allowable working range of the universal joint.

4. The vertical longitudinal stretching unit according to claim 2 or 3, characterized in that: The guide roller frame includes a base, and a pair of fixed side plates and a pair of movable side plates provided on the base; the pair of movable side plates can move in a direction away from or close to the pair of fixed side plates; a row of guide rollers in the guide roller array is installed on the pair of fixed side plates, and another row of guide rollers in the guide roller array is installed on the pair of movable side plates; Wherein, the movable stroke of the pair of movable side plates is equal to twice the distance in the width direction between a row of guide rollers installed on the pair of movable side plates and a row of motors corresponding to this row of guide rollers.

5. The vertical longitudinal stretching unit according to claim 4, characterized in that: The mounting frame includes a rectangular base, a fixed seat, a motor mounting plate and a support structure; wherein, The fixed seat is installed at the inner crossbeam position of the rectangular base; the fixed seat is used to fix and support the motor mounting plate; The motor mounting plate is fixed on the fixed seat and is used to provide an installation space for the motor array; One end of the support structure is connected to the motor mounting plate, and the other end is connected to the rectangular base; wherein, the support structure is used to support the motor mounting plate to prevent the motor mounting wall panel from tipping over.

6. The vertical longitudinal stretching unit according to claim 5, characterized in that: The support structure includes a first inclined support member and a second inclined support member, wherein the first inclined support member and the second inclined support member are respectively installed on both sides in the width direction of the motor mounting plate; each inclined support is installed on the side of the motor mounting plate where the motor array is not installed; each inclined support member forms a triangular structure with the vertical plane where the motor mounting plate is located and the horizontal plane where the rectangular base is located.

7. The vertical longitudinal stretching unit according to claim 6, characterized in that: The vertical longitudinal stretching unit further includes a first support beam and a second support beam; wherein, the first support beam and the second support beam are arranged between the first fixed side plate close to the driving assembly and the motor mounting plate among the pair of fixed side plates; the first support beam and the support beam are of equal length, and the first position where the first support beam is fixedly connected to the first fixed side plate and the second position where the second support beam is fixedly connected to the first fixed side plate are located at the diagonal positions of the first fixed side plate.

8. The vertical longitudinal stretching unit according to claim 7, characterized in that: A lifting hole is provided on the side of the motor mounting plate away from the rectangular base; wherein, the lifting hole is used to lift the motor mounting plate; Or, A sink or a through hole is provided on the side of the motor mounting plate close to the rectangular base; wherein, the sink or the through hole is used to facilitate the disassembly of the support beam close to the rectangular base.

9. The vertical longitudinal stretching unit according to claim 1, characterized in that: The vertical guide roller assembly further includes a rubber roller array matching the guide roller array; wherein, the rubber roller array is installed on the guide roller frame, and each rubber roller is driven by a pair of cylinders.

10. A film longitudinal stretching machine, characterized in that: The film longitudinal stretching machine includes a plurality of longitudinal stretching units, and at least one of the plurality of longitudinal stretching units is the vertical longitudinal stretching unit according to any one of claims 1-9.

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