Calender capable of conveniently adjusting distance between rollers

Abstract

The utility model relates to the technical field of calendaring machines, in particular to a calendaring machine convenient for adjusting the distance between rollers, which comprises a rack, a calendaring structure is arranged above the rack, the calendaring structure comprises a support frame arranged at the top of the rack, the middle part of the support frame is rotatably connected with a driving compression roller, and the driving compression roller is sleeved with a rhombic frame; the top of the rhombic frame is fixed to the position of the supporting frame, the bottom end of the rhombic frame is in lifting sliding fit with the supporting frame and is connected with the bottom of the supporting frame through a lifting adjusting mechanism, and the left side and the right side of the rhombic frame are both rotationally connected with auxiliary pressing rollers located above the central axis of the driving pressing roller. And the structure is simple, and the manufacturing cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of calenders, in particular to a calender for conveniently adjusting the distance between rollers. Background Technique

[0002] A calender is a machine that presses and spreads materials such as rubber, silica gel, silicone rubber, phase change materials, PTFE or plastics into films of a certain thickness and surface shape, and can apply rubber to fiber cord fabric or steel cord fabric. Calenders can be divided into two-roll, three-roll, four-roll and five-roll calenders according to the number of rollers; they can also be divided into "L" type, "T" type, "F" type, "Z" type and "S" type according to the arrangement of the rollers. The most widely used is the "L" type three-roll calender. In actual applications, the distance between the rollers needs to be adjusted accordingly. The patent with the publication number CN104309043A discloses a three-roll calender, which includes: a frame, in which three pressing rollers arranged in an "L" shape are provided, namely: a second pressing roller, a first pressing roller horizontally located on one side of the second pressing roller, and a third pressing roller vertically located above the second pressing roller. The three pressing rollers are respectively rotated under the drive of a calendering drive mechanism. The structure of the distance adjustment device is: both ends of the first and third pressing rollers are respectively arranged in a movable bearing seat, and the movable bearing seats are all movably arranged in the frame. Each movable bearing seat is connected to the inner end of a screw through a connecting piece. The screw and the connecting piece are axially locked and can rotate radially. Each screw is threadedly fitted in the first threaded through hole of a threaded sleeve, and all the threaded sleeves are fixedly installed on the frame. The outer end of the screw is connected to a rotation drive device for driving the screw to rotate. At least one lifting rod is also connected to each movable bearing seat. Each lifting rod movably passes through the installation through hole of the corresponding threaded sleeve. A spring and an adjusting pressing plate are arranged on each lifting rod. The two ends of the spring respectively abut between the threaded sleeve and the adjusting pressing plate. The elastic force of the spring makes the movable bearing seat tend to approach the corresponding threaded sleeve, so that the thread teeth on the screw are tightly abutted against the thread teeth meshing in the first threaded through hole; a pair of vertical guide rails are arranged on the frame outside the discharging area of the third pressing roller. The lifting bracket is slidably arranged on the pair of guide rails through the sliding grooves on both sides. A plurality of guide rollers for guiding the calendered products output by the third pressing roller are arranged on the lifting bracket. The guide rollers are arranged parallel to the third pressing roller. A lifting drive device for driving the lifting bracket to lift is arranged on the frame. Its overall structure is relatively complex, and the pressing rollers on both sides need to be adjusted separately. The distance adjustment is cumbersome and the structure is complex, and the manufacturing cost is relatively high. Therefore, a calender for conveniently adjusting the distance between rollers with fast distance adjustment, simple operation, simple structure and low manufacturing cost is designed. Content of the Utility Model

[0003] (1) Technical Problems to be Solved

[0004] In view of the deficiencies of the prior art, the present utility model provides a calender that facilitates adjusting the distance between rollers, which can simultaneously perform rapid distance adjustment, has a simple operation and a simple structure, and has a relatively low manufacturing cost.

[0005] (II) Technical Solution

[0006] To achieve the above object, the present utility model provides the following technical solution: A calender that facilitates adjusting the distance between rollers, including a frame, a calendering structure is arranged above the frame, the calendering structure includes a support frame installed on the top of the frame, a driving roller is rotatably connected to the middle of the support frame, a diamond-shaped frame is sleeved on the driving roller, the top of the diamond-shaped frame is fixedly positioned with the support frame, the bottom end of the diamond-shaped frame is in lifting and sliding cooperation with the support frame and is connected to the bottom of the support frame through a lifting adjustment mechanism, and auxiliary rollers located above the central axis of the driving roller are rotatably connected to both the left and right sides of the diamond-shaped frame.

[0007] Preferably, the diamond-shaped frame includes an upper connecting shaft and a lower connecting shaft located on the upper and lower sides of the driving roller, the upper connecting shaft, the lower connecting shaft and the two auxiliary rollers are hinged into a diamond shape through a plurality of connecting bars, the upper connecting shaft is rotatably connected to the support frame, and the lower connecting shaft is in lifting and sliding cooperation with the bottom of the support frame.

[0008] Preferably, lifting sliding grooves are opened on both sides of the bottom of the support frame, sliding seats are in lifting and sliding cooperation in the lifting sliding grooves, and both ends of the lower connecting shaft are rotatably connected to the two sliding seats respectively.

[0009] Preferably, the lifting adjustment mechanism includes an adjustment driving cylinder fixedly installed at the bottom of the support frame, an adjustment shaft sleeve is sleeved on the lower connecting shaft, and the top output end of the adjustment driving cylinder is fixedly connected to the bottom of the adjustment shaft sleeve.

[0010] Preferably, a thickness measuring mechanism is further arranged at the position below the driving roller, and the thickness measuring mechanism includes a thickness gauge fixedly installed on the inner bottom of the support frame through a riding shaft frame.

[0011] Preferably, a driving motor for driving the driving roller to rotate is fixedly installed on the support frame.

[0012] Preferably, multiple groups of calendering structures are arranged at intervals on the top of the frame.

[0013] Preferably, the frame includes a bottom frame with support positioning platforms fixedly connected to both sides of the top, the support frame is placed on the two support positioning platforms and is detachably installed on the two support positioning platforms.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, the present utility model provides a calender that facilitates adjusting the distance between rollers, and has the following beneficial effects:

[0016] The calender for facilitating the adjustment of the roller spacing can drive the bottom of the diamond-shaped frame to move up and down through the lifting adjustment mechanism, so that the diamond-shaped frame can be telescopically moved up and down. While moving up and down, it synchronously moves longitudinally, so that the two auxiliary pressure rollers move relative to the driving pressure roller to the two sides or towards the middle. At the same time, when moving towards the two sides, it moves up synchronously, and when moving towards the middle, it moves down, quickly adjusting the spacing from the driving pressure roller. The calender for facilitating the adjustment of the roller spacing can simultaneously perform rapid distance adjustment, with simple operation, simple structure, and low manufacturing cost. Brief Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the whole of the present utility model;

[0018] Figure 2 It is a schematic structural diagram of the whole of the present utility model from other perspectives;

[0019] Figure 3 It is a schematic structural diagram of the present utility model without a frame;

[0020] Figure 4 It is a schematic structural diagram of the cooperation of the driving pressure roller, auxiliary pressure roller and lifting adjustment mechanism of the present utility model.

[0021] Reference signs in the drawings: 1, support positioning table; 2, support frame; 3, driving pressure roller; 4, auxiliary pressure roller; 5, driving motor; 6, upper connecting shaft; 7, lower connecting shaft; 8, upper connecting bar; 9, lower connecting bar; 10, lifting chute; 11, sliding seat; 12, adjusting bushing; 13, adjusting driving cylinder; 14, riding shaft frame; 15, thickness gauge. Detailed Description of the Embodiment

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Embodiment:

[0024] Please refer to Figures 1-4, A calender for facilitating the adjustment of the distance between calender rollers, comprising a frame. Above the frame is provided a calendering structure. The calendering structure includes a support frame 2 installed on the top of the frame. A driving roller 3 is rotatably connected to the middle of the support frame 2. A diamond-shaped frame is sleeved on the driving roller 3. The top of the diamond-shaped frame is fixedly positioned with the support frame 2. The bottom end of the diamond-shaped frame is in lifting and sliding fit with the support frame 2 and is connected to the bottom of the support frame 2 through a lifting adjustment mechanism. On the left and right sides of the diamond-shaped frame are rotatably connected with auxiliary rollers 4 located above the central axis of the driving roller 3.

[0025] Specifically, the diamond-shaped frame includes an upper connecting shaft 6 and a lower connecting shaft 7 located on the upper and lower sides of the driving roller 3. The upper connecting shaft 6, the lower connecting shaft 7 and the two auxiliary rollers 4 are hinged into a diamond shape by a plurality of connecting bars. The upper connecting shaft 6 is rotatably connected to the support frame 2. The lower connecting shaft 7 is in lifting and sliding fit with the bottom of the support frame 2. By means of a plurality of connecting bars, it is convenient to form a diamond shape with the upper connecting shaft 6, the lower connecting shaft 7 and the two auxiliary rollers 4. Further, the connecting bars located on the upper and lower sides are respectively set as an upper connecting bar 8 and a lower connecting bar 9. The length of the upper connecting bar 8 is shorter than that of the lower connecting bar 9, reducing the stability of the overall structure and improving the adjustment effect.

[0026] Specifically, on both sides of the bottom of the support frame 2 are provided lifting chutes 10. A sliding seat 11 is in lifting and sliding fit in the lifting chutes 10. The two ends of the lower connecting shaft 7 are respectively rotatably connected to the two sliding seats 11. Through the cooperation of the lifting chutes 10 and the sliding seats 11, it is convenient to conduct lifting guidance on the lower connecting shaft 7 and increase the stability of the lifting of the lower connecting shaft 7.

[0027] Specifically, the lifting adjustment mechanism includes an adjustment driving cylinder 13 fixedly installed at the bottom of the support frame 2. An adjustment sleeve 12 is sleeved on the lower connecting shaft 7. The top output end of the adjustment driving cylinder 13 is fixedly connected to the bottom of the adjustment sleeve 12. Through the telescopic movement of the adjustment driving cylinder 13, it is convenient to drive the lower connecting shaft 7 to conduct lifting adjustment through the adjustment sleeve 12.

[0028] Specifically, a thickness measuring mechanism is also provided at the position below the driving roller 3. The thickness measuring mechanism includes a thickness gauge 15 fixedly installed on the inner bottom of the support frame 2 through a riding shaft frame 14. Further, the thickness gauge 15 can be set as an ultrasonic detector. Through the thickness gauge 15, the thickness of the coil after one-time calendering can be measured.

[0029] Specifically, a driving motor 5 for driving the driving roller 3 to rotate is fixedly installed on the support frame 2. Through the driving motor 5, it is convenient to drive the driving roller 3 to rotate.

[0030] Specifically, the calendering structure is set as multiple groups and spaced on the top of the frame. By setting two groups of calendering structures, it is convenient to conduct calendering in multiple times, reducing the burden of single-time calendering and improving the calendering effect.

[0031] Specifically, the frame includes a bottom frame with support positioning platforms 1 fixedly connected to both sides of the top. The support frame 2 is placed on the two support positioning platforms 1 and detachably installed on the two support positioning platforms 1. The support frame 2 and the support positioning platforms 1 are detachably connected by bolts. With the two support positioning platforms 1, it is convenient to support the support frame 2 and at the same time convenient to disassemble the support frame 2.

[0032] During use, the film is introduced from one side auxiliary roller 4, bypasses the bottom of the driving roller 3, and then bypasses the top of the auxiliary roller 4 on the other side. When the required calendering thickness is reached, the lifting adjustment mechanism is activated to adjust the up and down elongation state of the diamond telescopic frame, thereby adjusting the distance between the two auxiliary rollers 4 and the driving roller 3. Then, by rotating the driving roller 3, with the assistance of the two auxiliary rollers 4, the film is driven for secondary calendering.

[0033] It should be noted that the phrases "an embodiment", "embodiment", "exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include specific features, structures or characteristics, but not necessarily every embodiment includes such specific features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. Moreover, when combining specific features, structures or characteristics with an embodiment, implementing such features, structures or characteristics in combination with other embodiments, whether explicitly or implicitly described, is within the knowledge scope of those skilled in the art.

[0034] It should be easily understood that the terms "on", "above", and "over" in this disclosure should be interpreted in the broadest manner, such that "on" not only means "directly on something", but also includes the meaning of "on something" with intermediate features or layers therebetween, and "above" or "over" not only includes the meaning of "above" or "over something", but may also include the meaning of "above" or "over something" with no intermediate features or layers therebetween (i.e., directly on something).

[0035] In addition, for the convenience of description, spatial relative terms may be used in the text, such as "below", "beneath", "under", "above", "over", etc., to describe the relationship of one element or feature relative to other elements or features as shown in the figures. The spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation shown in the drawings. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatial relative descriptive terms used in the text may be interpreted accordingly.

[0036] It should be noted that in this text, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A calender for facilitating the adjustment of the roller spacing, characterized in that: It includes a frame, and a rolling structure is arranged above the frame. The rolling structure includes a support frame (2) installed on the top of the frame. A driving roller (3) is rotatably connected to the middle of the support frame (2). A diamond-shaped frame is sleeved on the driving roller (3). The top of the diamond-shaped frame is fixedly positioned with the support frame (2). The bottom end of the diamond-shaped frame is in lifting and sliding cooperation with the support frame (2) and is connected to the bottom of the support frame (2) through a lifting adjustment mechanism. Auxiliary rollers (4) located above the central axis of the driving roller (3) are rotatably connected to both the left and right sides of the diamond-shaped frame.

2. The calender according to claim 1, which is convenient for adjusting the distance between the rollers, is characterized in that: The diamond-shaped frame includes an upper connecting shaft (6) and a lower connecting shaft (7) located on the upper and lower sides of the driving roller (3). The upper connecting shaft (6), the lower connecting shaft (7) and the two auxiliary rollers (4) are hinged into a diamond shape by a plurality of connecting bars. The upper connecting shaft (6) is rotatably connected to the support frame (2). The lower connecting shaft (7) is in lifting and sliding cooperation with the bottom of the support frame (2).

3. The calender according to claim 2, which is convenient for adjusting the distance between the rollers, is characterized in that: Lifting sliding grooves (10) are respectively opened on both sides of the bottom of the support frame (2). Sliding seats (11) are in lifting and sliding cooperation in the lifting sliding grooves (10). The two ends of the lower connecting shaft (7) are respectively rotatably connected to the two sliding seats (11).

4. The calender according to claim 3, characterized in that: The lifting adjustment mechanism includes an adjustment driving cylinder (13) fixedly installed at the bottom of the support frame (2). An adjustment sleeve (12) is sleeved on the lower connecting shaft (7). The top output end of the adjustment driving cylinder (13) is fixedly connected to the bottom of the adjustment sleeve (12).

5. The calender according to claim 4, which is convenient for adjusting the distance between the rollers, is characterized in that: A thickness measuring mechanism is further arranged at the position below the driving roller (3). The thickness measuring mechanism includes a thickness gauge (15) fixedly installed at the inner bottom of the support frame (2) through a riding shaft frame (14).

6. The calender according to claim 5, characterized in that: A driving motor (5) for driving the driving roller (3) to rotate is fixedly installed on the support frame (2).

7. The calender according to claim 6, characterized in that: The rolling structure is arranged in multiple groups and spaced on the top of the frame.

8. The calender according to claim 7, characterized in that: The frame includes a bottom frame with support positioning platforms (1) fixedly connected to both sides of the top. The support frame (2) is placed on the two support positioning platforms (1) and is detachably installed on the two support positioning platforms (1).

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