Compression roller with heating function and three-roller calender

Abstract

The compression roller with the heating function comprises a roller cylinder, a supporting plate, a lantern ring, a shaft body, an electric heating piece, an end plate and a rotating shaft, the roller cylinder is provided with a hole body, the supporting plate is connected into the hole body, the lantern ring is connected to the supporting plate, the shaft body is inserted into the hole body along the axis of the roller cylinder, the shaft body is arranged on the lantern ring, and the electric heating piece is arranged on the shaft body in the length direction of the shaft body. The end plates are connected to the two ends of the roller, and the rotating shaft is connected to the end plates and used for being rotationally connected with a rack of the three-roller calender. The shaft body is positioned in the roller through the lantern ring and the supporting plate, the electric heating piece is arranged in the roller in the length direction of the roller through the shaft body, and the roller is heated through the electric heating piece to improve the heat of the roller. Therefore, the rubber can keep good ductility after contacting with the roller, and the problem that the rubber is easy to adhere to the surface of the roller due to too low temperature of the roller is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to calender technology field especially a kind of compression roller and three-roll calender with heating function. BACKGROUND

[0002] Calender, also known as roller press, pair roller and rolling mill, is an important material processing equipment. Calender is mainly composed of roller, frame, roller gap adjusting device, transmission device, lubrication system, control system and roll dismounting device. The working principle of calender is roughly the same as that of open mill. When the material with certain temperature and plasticity (such as rubber compound) is fed between two counter-rotating rollers, the material is pulled into the roller gap under the action of friction, and the material is extruded and stretched due to the gradual reduction of the roller gap section. Many calendering processes require that the matched rollers work at a certain speed ratio to further mix, knead and increase the plasticity of the material, and finally the rubber sheet with certain thickness and width is calendered through the smallest roller gap.

[0003] A patent named "Rubber Three-Roll Calender" is disclosed in Chinese Patent Database, with publication number CN219820410U and publication date October 13, 2023. The rubber three-roll calender includes a frame, a first support seat and a second support seat arranged on the frame, the second support seat is slidably connected to the frame, a plurality of sliding blocks are slidably connected to the first support seat and the second support seat, a calendering roller is rotatably connected between the opposite two sliding blocks, a locking device is arranged on the support frame for fixing the plurality of sliding blocks, a driving device is arranged on the frame for driving the plurality of calendering rollers to rotate, and a fixing device is arranged on the frame for fixing the second support seat. The three-roll calender does not have a heating structure in the calendering roller. When high-temperature rubber contacts with low-temperature calendering roller, due to the strong extrusion of the calendering roller on the rubber, there is a risk that part of the high-temperature rubber will fall off and stick to the low-temperature calendering roller. At the same time, rubber only has good ductility and plasticity at a certain temperature. The low-temperature calendering roller will transfer the heat of the rubber, thereby reducing the temperature of the rubber material, thus reducing the deformation ability of the rubber and the smoothness of the rubber material moving between the compression rollers, thereby reducing the quality of the calendered product. UTILITY MODEL CONTENT

[0004] The present application provides a compression roller with heating function to improve the smoothness of rubber material during the rolling process, reduce the risk of high-temperature rubber sticking to the surface of low-temperature compression roller during the rolling process, and solve the problem of decreased deformation ability of rubber material due to heat absorption by the compression roller. The present application also discloses a three-roll calender.

[0005] One aspect of the present application provides a compression roller with heating function, comprising:

[0006] Roller, having a hole body;

[0007] Support plate, connected in the hole body;

[0008] Sleeve ring, connected to the support plate;

[0009] Shaft body, inserted into the hole body along the roller axis, the shaft body is arranged on the sleeve ring;

[0010] Electric heating element, arranged along the length direction of the shaft body in the shaft body;

[0011] End plate, connected to both ends of the roller;

[0012] Rotary shaft, connected to the end plate, the rotary shaft is used for rotary connection with the frame of a three-roller calender.

[0013] The beneficial effects of the above embodiment are that the shaft body is positioned in the roller through the sleeve ring and the support plate, and the electric heating element is arranged in the roller along the length direction of the roller through the shaft body, the roller heat is improved through the electric heating element in the roller, so that the rubber can maintain good ductility after contacting with the roller and the problem that the rubber is easily adhered to the surface of the roller due to the too low temperature of the roller is avoided.

[0014] On the basis of the above embodiment, the embodiments of the present application can also be improved as follows:

[0015] In one of the embodiments of the present application: the connecting piece connects the support plate and the sleeve ring. The beneficial effect of this step is that the connection of the support plate and the sleeve ring is realized, thereby improving the stability of the structure.

[0016] In one of the embodiments of the present application: further comprising: a gland, the gland is sleeved on the end of the shaft body and connected with the sleeve ring. The beneficial effect of this step is that the shaft body is connected with the sleeve ring through the gland, thereby improving the stability of the positioning of the shaft body.

[0017] In one of the embodiments of the present application: the outer periphery of the shaft body is connected with a first positioning strip, the inner ring of the sleeve ring is provided with a first positioning groove, and the first positioning strip is slidingly inserted into the first positioning groove. The beneficial effect of this step is that the first positioning strip and the first positioning groove are inserted and positioned, thereby increasing the positioning structure of the shaft body in the radial direction, reducing the shear stress of the connecting piece between the gland and the shaft body, and thereby improving the stability of the positioning of the shaft body.

[0018] In one of the embodiments of the present application: the end plate is provided with a second positioning strip, the roller is provided with a second positioning groove corresponding to the second positioning strip, and the second positioning strip is inserted into the second positioning groove. The beneficial effect of this step is that the second positioning strip and the second positioning groove are inserted and positioned, thereby increasing the positioning of the end plate relative to the roller in the radial direction, and thereby improving the stability of the connection between the end plate and the roller.

[0019] Two aspects of the application provide a three-roller calender, including the compression roller with heating function BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings required to be used in the specific embodiments or the prior art description will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0021] Figure 1 The structure diagram of the compression roller with heating function is shown in the figure.

[0022] Figure 2 The structure diagram of the compression roller with heating function is shown in the figure. Figure 1 The sectional view along A-A.

[0023] In the figure, 1 is a roller, 101 is a second positioning groove, 2 is a support plate, 3 is a sleeve ring, 301 is a first positioning groove, 4 is a shaft body, 401 is a first positioning strip, 5 is an electric heating element, 6 is an end plate, 601 is a second positioning strip, 7 is a rotating shaft, 8 is a connecting piece, 9 is a compression cover, and 10 is a conductive slip ring. DETAILED DESCRIPTION

[0024] In the present application, unless otherwise explicitly specified and limited, the terms in the present application should be understood in a broad sense. For example, the connection can be fixed connection, or detachable connection or integral, can be directly connected, or indirectly connected through an intermediate medium. If it involves power, electronic equipment, it can also be an electrical connection or a communication signal connection. For ordinary skilled in the art, different terms in the present application can be understood according to the specific circumstances, and the specific meaning of the scope should be limited to the function of the present application.

[0025] In the description of the present application, it should be understood that the orientation terms or position relationship descriptions are based on the orientation or position relationship shown in the drawings, or based on the orientation or position relationship in actual use, only for the convenience of describing the content of the present application and simplifying the description, and not indicating or implying that the devices or elements indicated must have a specific orientation, structure and operation, therefore, it cannot be understood as a limitation of the present application.

[0026] Example one

[0027] As Figure 1 , 2As shown in the figure, a heating function of the compression roller, including: roller 1, support plate 2, collar 3, shaft 4, electric heating element 5, end plate 6, shaft 7, roller 1 has hole body 101, support plate 2 is connected in the hole body 101, collar 3 is connected to the support plate 2, shaft 4 is inserted into the hole body 101 along the axis of the roller 1, shaft 4 is arranged on the collar 3, electric heating element 5 is arranged along the length direction of the shaft 4, end plate 6 is connected to both ends of the roller 1, shaft 7 is connected to the end plate 6, shaft 7 is used for rotating connection with the rack of three roller calender.

[0028] Specifically, as shown in Figure 1 、 2 The support positioning structure formed by the support plate 2 and the collar 3 has two groups and forms a symmetrical structure at both ends of the hole body 101, the support structure is used for positioning and supporting both ends of the shaft 4, the support plate 2 has four pieces and is arranged in a cross-shaped structure in the hole body 101, the support plate 2 is arranged along the radial direction of the hole body 101, the support plate 2 is connected to the collar 3 in four directions at the same time, which can improve the structural strength of the connection with the collar 3.

[0029] Specifically, as shown in Figure 1 、 2 The compression roller further comprises: a connecting piece 8, the connecting piece 8 connects the support plate 2 and the collar 3, the outer periphery of the collar 3 is a square structure, the inner ring is a circular structure matched with the shaft 4, the connecting piece 8 is an L-shaped bracket, one plate body of the connecting piece 8 is connected with the support plate 2, and the other plate body is connected with the outer wall of the collar 3, realizing the connection of the support plate 2 and the collar 3, thereby improving the stability of the structure.

[0030] Specifically, as shown in Figure 1 、 2 The compression roller further comprises: a compression cover 9, the compression cover 9 is sleeved on the end of the shaft 4 and connected with the collar 3, the shaft 4 and the collar 3 are connected through the compression cover 9, improving the stability of the shaft 4 positioning.

[0031] Specifically, as shown in Figure 1 The outer periphery of the shaft 4 is connected with a first positioning strip 401, the first positioning strip 401 has a plurality of roots, the first positioning strip 401 is arranged on the outer periphery of the shaft 4 and parallel to the axis of the shaft 4, the inner ring of the collar 3 is provided with a first positioning groove 301 corresponding to the first positioning strip 401, and the first positioning strip 401 is slidably inserted into the first positioning groove 301. The first positioning strip 401 and the first positioning groove 301 are connected and positioned, which increases the positioning structure of the shaft 4 in the radial direction, reduces the shearing stress of the connecting piece 8 between the compression cover 9 and the shaft 4, and improves the stability of the shaft 4 positioning.

[0032] Specifically, as shown in Figure 1As shown, the end plate 6 is provided with a second positioning strip 601, which is arranged on the surface of the end plate 6 facing the hole body 101, and is arranged radially on the end plate 6. The roller 1 is provided with a second positioning groove 101 corresponding to the second positioning strip 601, and the second positioning strip 601 is inserted into the second positioning groove 101. Through the insertion and positioning of the second positioning strip 601 and the second positioning groove 101, the positioning of the end plate 6 relative to the roller 1 in the radial direction is increased, thereby improving the stability of the connection between the end plate 6 and the roller 1.

[0033] Specifically, the electric heating element 5 adopts an electric heating wire, which is wound along the length direction of the shaft body 4 and connected to the surface of the shaft body 4. Through the shaft body 4, the electric heating wire is uniformly arranged along the length direction of the hole body 101, and direct contact between the electric heating wire and the roller 1 is avoided. The electric heating wire is electrically connected to the conductive slip ring 10 connected to the rotating shaft 7. The conductive slip ring 10 is sleeved on the rotating shaft 7 and electrically connected to the electric heating wire through a wire. The conductive slip ring 10 is also electrically connected to the power supply through a wire. This structure realizes the electrical transmission function of the rotating part.

[0034] When the heating roller with heating function is used, the electric heater is turned on to heat the roller, and the temperature of the roller is increased. When the temperature meets the working requirements, the calender is started to perform extrusion work on the rubber entering the gap between the rollers. In this process, the increase of the temperature of the rubber helps to increase the plasticity of the rubber compound, making it easier to be stretched and formed under the action of the roller, which is crucial for improving the quality and production efficiency of the calendered product. The rubber compound is subjected to strong extrusion and stretching action in the gap between the rollers. The heated roller can make the calendering process more smooth, reduce the adhesion of the rubber compound on the roller, thereby reducing energy consumption and production cost. At the same time, the heated roller also helps to improve the density and uniformity of the calendered product, making it have better physical properties and appearance quality.

[0035] Example Two

[0036] A three-roll calender, comprising the heating roller with heating function disclosed in Example One.

[0037] The above is only an embodiment of the present application, and the common knowledge of specific structures and properties in the scheme is not described in detail, the ordinary skilled person in the art knows all the ordinary technical knowledge in the technical field of the present application before the application date or the priority date, can know all the prior art in the field, and has the ability to apply conventional experimental means before that date, the ordinary skilled person in the art can improve and implement the present scheme under the inspiration given in the present application, and some typical known structures or known methods should not be an obstacle for the ordinary skilled person in the art to implement the present application. It should be pointed out that, for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, which will not affect the effect and practicality of the present application.

Claims

1. A compression roller having a heating function, characterized by, The application relates to a heating roller, comprising: a roller with a hole body; a support plate connected to the hole body; a sleeve ring connected to the support plate; a shaft body inserted into the hole body along the roller axis, the shaft body being arranged on the sleeve ring; an electric heating element arranged along the length direction of the shaft body; an end plate connected to both ends of the roller; a rotating shaft connected to the end plate, the rotating shaft being used for rotating connection with the frame of a three-roller calender.

2. The press roller according to claim 1, characterized in that Further comprising: a connecting piece connecting the support plate and the sleeve ring.

3. The press roller of claim 1, wherein Further comprising: a gland cover sleeved on the end of the shaft body and connected with the sleeve ring.

4. The press roll of claim 1, wherein, A first positioning strip is connected to the outer periphery of the shaft body, a first positioning groove is arranged in the inner ring of the sleeve ring, and the first positioning strip is slidingly inserted into the first positioning groove.

5. The press roll of claim 1, wherein, The end plate is provided with a second positioning strip, and a second positioning groove is arranged in the roller corresponding to the second positioning strip, and the second positioning strip is inserted into the second positioning groove.

6. A three-roll calender characterized by The application further relates to a heating roller, comprising the heating roller according to any one of claims 1-5.

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