Calender gap adjustment mechanism

Abstract

The application discloses a calender gap adjusting mechanism, which comprises a gap adjusting seat, a bearing matching sliding seat provided with lifting displacement on the gap adjusting seat, a lifting driving source for adjusting the lifting displacement of the bearing matching sliding seat, a transfer plate arranged at the bottom of the bearing matching sliding seat, the lifting driving source comprising a rotary jacking screw and an automatic rotary driving source connected with the rotary jacking screw, and a dynamic balance matching part arranged between the transfer plate and the free end of the rotary jacking screw. The dynamic balance matching part can realize automatic gap adjusting precision control, thereby meeting the requirement of automatic dynamic gap precision adjustment, and the calender thickness of the product can be sensitively and highly precisely adjusted, and the calender quality is obviously improved. The dynamic matching design of the circular arc matching can meet the requirement of high-precision adjustment of the lifting displacement and the micro-offset matching, and the wear is small, and the effective service life is long. The calender gap adjusting mechanism is easy to assemble and construct, is especially suitable for old mechanism transformation, has low transformation cost, and is easy to assemble, disassemble and maintain.

Description

TECHNICAL FIELD

[0001] The present application relates to a calender gap adjusting mechanism, and belongs to the technical field of calender gap adjusting mechanisms. BACKGROUND

[0002] A calender is a machine that is used to press and spread rubber or plastic into a certain thickness and surface shape of a rubber sheet at a certain temperature, and can be used to coat fiber cord fabric or steel cord fabric. The calender can be divided into two-roll, three-roll, four-roll, and five-roll calenders according to the number of rollers, and can be divided into "L" type, "T" type, "F" type, "Z" type, and "S" type according to the arrangement of the rollers.

[0003] During the calendering process of the calender, the calender gap needs to be adjusted, and the calender gap adjusting mechanism is generally used to adjust the adjacent gap of the roller body to meet the thickness requirement of the calendering material.

[0004] The calender gap adjusting mechanism generally includes a bearing connected to the roller shaft, a gap adjusting seat, a bearing matching sliding seat with lifting displacement on the gap adjusting seat, and a lifting driving source for adjusting the lifting displacement of the bearing matching sliding seat. The lifting displacement of the bearing matching sliding seat is controlled by the lifting driving source to adjust the gap.

[0005] In the prior art, the lifting driving source generally adopts a hand screw to convert the rotary displacement into the lifting displacement of the bearing matching sliding seat. After the gap is pre-adjusted before the calendering operation, the calendering production is carried out. The traditional hand screw gap is relatively fixed, and there is a certain thickness bounce during the calendering process, so it is difficult to guarantee the uniformity of the calendering. In addition, the traditional screw and the bearing matching sliding seat are matched by the rod top, and the top rod is a planar or conical structure. The alignment between the top rod and the bearing matching sliding seat generally requires matching with the radial direction of the roller. During the rotary driving process of the traditional top rod, there is a certain deviation, which can be eliminated during manual adjustment, but it is difficult to realize dynamic adjustment during the calendering operation. SUMMARY

[0006] The purpose of the present application is to solve the problems of the prior art, and to propose a calender gap adjusting mechanism to solve the problem that the traditional calender gap adjusting mechanism cannot meet the dynamic adjustment requirement.

[0007] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows:

[0008] The calender gap adjusting mechanism includes a gap adjusting seat, a bearing matching sliding seat with lifting displacement on the gap adjusting seat, and a lifting driving source for adjusting the lifting displacement of the bearing matching sliding seat,

[0009] The bottom of the bearing adapter sliding base is provided with an adapter plate, the lifting driving source comprises a rotary jacking screw, an automatic rotary driving source connected with the rotary jacking screw,

[0010] The adapter plate and the free end of the rotary jacking screw are provided with a dynamic balance matching part.

[0011] Preferably, the dynamic balance matching part comprises a balance block provided with a circular arc groove on the adapter plate, and a circular arc matching protrusion matched with the circular arc groove on the free end of the rotary jacking screw.

[0012] Preferably, the outer periphery of the balance block is provided with a stop ring seat key matched with the adapter plate.

[0013] Preferably, the dynamic balance matching part comprises a balance base provided with a circular arc protrusion on the adapter plate, and a flat head matching block on the free end of the jacking screw.

[0014] Preferably, the bottom of the adapter plate is provided with a stop ring seat, and the stop ring seat is provided with a thrust bearing matched with the rotary jacking screw.

[0015] Preferably, a mortise and tenon matching structure is arranged between the adapter plate and the stop ring seat.

[0016] Preferably, the bottom of the stop ring seat is provided with a detachably arranged protection ring cover.

[0017] Preferably, the free end of the rotary jacking screw is provided with a detachably arranged abutting matching end.

[0018] Preferably, the automatic rotary driving source is a rotary cylinder or a servo motor.

[0019] The beneficial effects of the present application mainly include:

[0020] 1. The dynamic balance matching part design can realize automatic gap adjustment precision control, thereby meeting the automatic dynamic gap accurate adjustment requirement, the product calendering thickness is sensitively and accurately adjusted, and the calendering quality is significantly improved.

[0021] 2. The dynamic matching design of the circular arc matching can meet the high-precision adjustment of the lifting displacement and the micro-offset matching, and has small wear and long effective service life.

[0022] 3. Easy to assemble and build, especially suitable for old mechanism transformation, low transformation cost, easy to assemble and disassemble and maintain. BRIEF DESCRIPTION OF DRAWINGS

[0023] Other features, objects, and advantages of the application will become more apparent from the following detailed description when read in connection with the following drawings:

[0024] Figure 1 is a structural schematic diagram of the calender gap adjusting mechanism embodiment one of the application.

[0025] Figure 2 is a structural schematic diagram of the calender gap adjusting mechanism embodiment two of the application. DETAILED DESCRIPTION

[0026] To make the objects, technical solutions and advantages of the embodiments of the application clearer, the technical solutions in the embodiments of the application will be described clearly and completely below in conjunction with the drawings in the embodiments of the application. Obviously, the described embodiments are only some of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0027] The application will be described in further detail below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related application, rather than limit the application. In addition, it should be noted that, for the convenience of description, only the parts related to the application are shown in the drawings. It should be noted that, in the case of no conflict, the embodiments in the application and the features in the embodiments can be combined with each other.

[0028] The application provides a calender gap adjusting mechanism, as shown in Figure 1 and Figure 2 , comprising a gap adjusting seat 1, a bearing matching sliding seat 2 provided with lifting displacement on the gap adjusting seat 1, and a lifting driving source 3 for adjusting the lifting displacement of the bearing matching sliding seat 2. The conventional lifting driving source adopts the structure of a manually rotating screw rod, which can only realize fixed gap adjustment, and at the same time, has certain adjustment deviation, and cannot adapt to dynamic adjustment production.

[0029] In the application, as shown in Figure 1 and Figure 2 , the bottom of the bearing matching sliding seat is provided with a transfer plate 4, the lifting driving source 3 comprises a rotating jacking screw rod 5 and an automatic rotating driving source 6 connected with the rotating jacking screw rod, and a dynamic balance matching part 7 is arranged between the transfer plate 4 and the free end of the rotating jacking screw rod 5.

[0030] Specific implementation process and principle description:

[0031] First, the automatic rotating driving source 6 is adopted to realize automatic lifting displacement high-precision adjustment, which can realize high-precision rotating driving of the rotating jacking screw rod 5, and meet the requirement of relatively stable and accurate rotating displacement output.

[0032] Second, through the dynamic balance matching part 7 design, so that the lifting output of the rotating jacking screw 5 is stably and accurately converted into the lifting displacement of the bearing matching sliding seat, ensuring its high-precision controllable travel, so that the thickness monitoring of the calendering material during the calendering production process can meet the front-end automatic floating high-precision adjustment demand, maintaining a relatively stable and accurate calendering output, and the product calendering quality is controllable and stable, reducing the calendering scrap rate.

[0033] Embodiment one

[0034] As shown in Figure 1 , the dynamic balance matching part 7 includes a balance block 71 provided with a circular arc groove 710 on the adapter plate, and a circular arc matching protrusion 72 provided on the free end of the rotating jacking screw and matched with the circular arc groove.

[0035] During the jacking process of the rotating jacking screw 5, the circular arc matching protrusion 72 and the circular arc groove 710 of the balance block 71 are matched to meet the demand of spherical surface matching jacking, and the existence of deviation correction adjustment and smooth jacking demand maintains a relatively reliable automatic variable adjustment, ensuring reliable one-end gap adjustment. Of course, during dynamic control, corresponding cooperation needs to be carried out according to the lifting amount and thickness of the two ends.

[0036] This embodiment can be optimized, and the outer periphery of the balance block 71 is provided with a stop ring seat key 711 matched with the adapter plate, which is easy to realize its mounting and maintenance assembly.

[0037] Embodiment two

[0038] As shown in Figure 2 , the dynamic balance matching part 7 includes a balance block 71 provided with a circular arc groove 710 on the adapter plate, and a circular arc matching protrusion 72 provided on the free end of the rotating jacking screw and matched with the circular arc groove.

[0039] That is, the plane of the flat head matching block 74 and the circular arc protrusion 730 realize the deflection and fine adjustment of the dynamic balance, so that the one-side monitoring adjustment is more smooth and stable, and the automatic output can be precisely controlled.

[0040] In one specific embodiment, the bottom of the adapter plate 4 is provided with a stop ring seat 8, and the stop ring seat 8 is provided with a thrust bearing 80 matched with the rotating jacking screw. The adapter plate and the stop ring seat are provided with a mortise and tenon matching structure. The bottom of the stop ring seat is provided with a detachable protective ring cover 81.

[0041] That is, it meets the requirements of stable matching and assembly matching of rotation.

[0042] In one specific embodiment, the free end of the rotating jacking screw 5 is provided with a detachable abutting matching end 50, i.e. the flat head matching block 74 and the circular arc matching protrusion 72 in Embodiment One and Embodiment Two, both of which are detachably carried, and are easy to disassemble, maintain and repair after long-term use and damage.

[0043] In one specific embodiment, the automatic rotating driving source is a rotating cylinder or a servo motor, i.e. using electric control or air control to realize precise variable amount adjustment, of course, there is also associated control calculation, generally through the detection data of the calender gap and the thickness of the rear-end product to carry out relevant associated operations, calculate the variable logic relationship of the control parameters and the gap threshold value, and then carry out corresponding automatic dynamic change control, which is not described in detail, it belongs to the conventional technical means of PLC control or software control, and is not expanded.

[0044] As can be seen from the above description, through the design of the dynamic balance matching part, the precision control of automatic gap adjustment can be realized, thereby meeting the demand for automatic dynamic gap precision adjustment, the product calender thickness is sensitively and highly precisely adjusted, and the calender quality is significantly improved. The dynamic matching design of the circular arc matching can meet the high-precision adjustment of the lifting displacement and the slight deviation, and has less wear and a longer effective service life. It is easy to assemble and build, especially suitable for old mechanism transformation, and has low transformation cost and is easy to assemble and disassemble and maintain.

[0045] The term "comprising" or any other similar word is intended to encompass non-exclusive inclusion, so that a process, method, article or equipment / device including a series of elements includes not only those elements, but also other elements not explicitly listed, or inherent elements of these processes, methods, articles or equipment / devices.

[0046] So far, the technical solutions of the present application have been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the present application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without departing from the principles of the present application, and the technical solutions after the changes or replacements will fall within the protection scope of the present application.

Claims

1. A calender gap adjustment mechanism, comprising a gap adjustment seat, a bearing mounting slide having a lifting displacement on the gap adjustment seat, and a lifting drive source for adjusting the lifting displacement of the bearing mounting slide, characterized in that: The bearing mounting slide has an adapter plate at its bottom, and the lifting drive source includes a rotary lifting screw and an automatic rotary drive source connected to the rotary lifting screw. A dynamic balance fit is provided between the adapter plate and the free end of the rotary lifting screw; The dynamic balancing part includes a balance block with an arc groove on the adapter plate and an arc-shaped mating protrusion on the free end of the rotating lifting screw that mates with the arc groove; the outer periphery of the balance block is provided with a retaining ring seat key that mates with the adapter plate. The bottom of the adapter plate is provided with a retaining ring seat, and the retaining ring seat is provided with a thrust bearing that cooperates with the rotating lifting screw; The adapter plate and the retaining ring seat are provided with a tenon and mortise joint structure.

2. The calender gap adjustment mechanism according to claim 1, characterized in that: The bottom of the retaining ring seat is provided with a detachable protective ring cover.

3. The calender gap adjustment mechanism according to claim 1, characterized in that: The free end of the rotary lifting screw is provided with a detachable abutment end.

4. The calender gap adjustment mechanism according to claim 1, characterized in that: The automatic rotation drive source is a rotary cylinder or a servo motor.

Images