Automatic feeding mechanism of calender

Abstract

The utility model relates to the field of rubber production, and in particular to an automatic feeding mechanism of a calender. The utility model comprises: a calender body and a reciprocating feeding assembly installed on one side thereof, a spiral feeding mechanism with a preheating function is installed on a side of the feeding assembly away from the calender body, the reciprocating feeding assembly comprises an inclined conical feeding hopper and two mounting plates, the two sides of the conical feeding hopper are respectively connected with mounting seats, the mounting seats are respectively penetrated with guide rods, the two ends of the guide rods are respectively connected with the opposite sides of the mounting plate, the conical feeding hopper is driven to reciprocate by a telescopic rod assembly, an intermittent feeding effect is formed, the rubber material is evenly distributed on the rubber mixing roller of the calender body, and the rubber material is more evenly calendered between the roller sections, the calendered rubber sheet is prevented from being too thick, and the defects of bubbles, impurities and the like in the rubber are reduced.

Description

Technical Field

[0001] The utility model relates to the field of rubber production, in particular to an automatic feeding mechanism of a calender. Background Art

[0002] A calender is a device that uses the pressure and friction of rollers to continuously process materials. In the production of rubber tires, calenders are mainly used to press and extend rubber raw materials, glue and other materials into films of a certain thickness and surface shape, or to coat fiber cord canvas or steel cord with glue. Calenders are one of the important equipment in the production of rubber tires. They run through multiple links in tire production, including raw material processing, steel cord coating with glue, inner liner and tread manufacturing, etc. The precise processing of the calender can ensure that the quality and performance of the tire meet the design requirements.

[0003] With regard to the above-mentioned related technologies, the inventors found that before the rubber enters the calender, it needs to be refined on a hot mill. Only after refining can the rubber be placed on the calender for calendering and rubber refining to improve the plasticity of the rubber. The rubber after refining is generally directly transported to the rubber mixing roller of the calender for calendering operation, and intermittent feeding cannot be performed, resulting in excessive feeding of rubber and relatively aggregated rubber, making the calendered rubber sheet too thick, with a rough and uneven surface, and even causing defects such as bubbles and impurities. Utility Model Content

[0004] The utility model mainly solves the technical problem of providing an automatic feeding mechanism of a calender, which is convenient for intermittent feeding, prevents the calendered rubber sheet from being too thick, and reduces defects such as bubbles and impurities in the rubber.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide an automatic feeding mechanism of a calender, comprising: a calender body and a reciprocating feeding assembly installed on one side thereof, wherein a spiral feeding mechanism with a preheating function is installed on a side of the feeding assembly away from the calender body;

[0006] The reciprocating feeding assembly includes an inclined conical feeding hopper and two mounting plates, the two sides of the conical feeding hopper are respectively connected with mounting seats, the mounting seats are respectively penetrated with guide rods, the two ends of the guide rods are respectively connected with the opposite sides of the mounting plate, one of the mounting plates is connected with a telescopic rod assembly for driving the conical feeding hopper to reciprocate, the discharge end of the spiral feeding mechanism is always located on the inner side of the conical feeding hopper and does not contact it, and the bottom end of the conical feeding hopper is located above between the rubber mixing rollers of the calender body.

[0007] By adopting the above technical solution, the spiral feeding mechanism transfers the refined rubber to the conical feeding hopper. As the telescopic rod assembly telescopes, the conical feeding hopper is driven to move back and forth, forming an intermittent feeding effect, so that the rubber is evenly distributed on the rubber mixing roller of the calender body, and the rubber is more evenly calendered between each section of the roller, reducing the possibility of local accumulation and over-calendering, thereby preventing the calendered rubber sheet from being too thick and reducing defects such as bubbles and impurities in the rubber.

[0008] In a preferred example, the utility model can be further configured as follows: the spiral feeding mechanism includes a plurality of brackets and an inclined heat-conducting shell member, the higher end of the heat-conducting shell member is provided with an arc-shaped discharge port, the lower end of the heat-conducting shell member is equipped with a feed hopper, the arc-shaped discharge port is always located on the inner side of the conical feeding hopper and does not contact it, the inner side of the heat-conducting shell member is rotatably connected to an auger, the surface of the arc-shaped discharge port is connected to a second mounting plate, and the second mounting plate is connected to a drive device for driving the auger to rotate.

[0009] By adopting the above technical solution, the driving device drives the auger to continuously transport the rubber, ensuring that the rubber remains stable during the transportation process and reducing the accumulation and blockage of materials during the transportation process. The arc-shaped discharge port is curved in shape, which can better adapt to the layout of the production site, making the transportation path more flexible and compact.

[0010] In a preferred example, the utility model can be further configured as follows: the heat-conducting shell member includes an inner tube body and an outer tube body, a heat-conducting cavity is formed between the inner tube body and the outer tube body, a spiral guide ring plate is connected to the heat-conducting cavity, an oil inlet is connected to one side of the top of the outer tube body, and an oil outlet is connected to one side of the bottom of the outer tube body, and one end of the oil inlet and the oil outlet respectively extend into the heat-conducting cavity.

[0011] By adopting the above technical scheme, the external heat transfer oil flows along the oil inlet into the heat transfer cavity, and under the action of the spiral guide ring plate, the external heat transfer oil is made to move in a spiral motion in the heat transfer cavity, so that its heat is fully utilized to preheat and keep the transported rubber material warm, thereby improving the calendering efficiency of the calender body, and the heat transfer oil after the spiral motion is discharged along the oil outlet, forming a complete circulating oil circuit.

[0012] In a preferred example, the utility model can be further configured as follows: the telescopic rod assembly includes no less than one electric push rod, and one end of the electric push rod is respectively connected to the conical feeding hopper.

[0013] By adopting the above technical solution, the electric push rod drives the conical feeding hopper to move back and forth when it telescopes, and the rubber inside is evenly distributed on the rubber mixing roller of the calender body, so as to realize intermittent feeding, which is helpful to control the temperature and plasticity of the rubber. By controlling the appropriate temperature through the calender body, it is helpful to improve the plasticity, tensile properties, anti-fatigue performance, etc. of the rubber.

[0014] In a preferred example, the utility model can be further configured as follows: a polyurethane anti-collision plate is respectively connected to one side of the conical feeding hopper close to the mounting plate.

[0015] By adopting the above technical solution, when the conical feeding hopper moves back and forth, the polyurethane anti-collision plate prevents the conical feeding hopper from generating pressure and causing deformation when it contacts with the mounting plate, thereby improving the anti-collision protection performance of the conical feeding hopper.

[0016] In a preferred example, the present invention can be further configured as follows: the cross section of the feed hopper is conical.

[0017] By adopting the above technical solution, the refractory rubber material passes through the feed hopper and cooperates with the auger to enter the heat-conducting shell for continuous feeding, and the cross-section of the feed hopper is conical, which effectively improves the transportation efficiency.

[0018] In summary, the utility model includes at least one of the following beneficial technical effects of the automatic feeding mechanism of the calender:

[0019] 1. The conical feeding hopper is driven to move back and forth by the telescopic rod assembly to form an intermittent feeding effect, so that the rubber is evenly distributed on the rubber mixing roller of the calender body, and the rubber is more evenly calendered between the rollers of each section, preventing local accumulation and reducing the load of the calender body, and preventing the calendered rubber sheet from being too thick, reducing defects such as bubbles and impurities in the rubber.

[0020] 2. The driving device drives the auger to continuously convey the rubber material to ensure that the rubber material remains stable during the conveying process. During this process, the external heat transfer oil flows along the oil inlet into the heat transfer cavity, and under the action of the spiral guide ring plate, the external heat transfer oil moves in a spiral motion in the heat transfer cavity, making full use of its heat to preheat and keep the conveyed rubber material warm, thereby improving the calendering efficiency of the calender body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work, among which:

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the reciprocating feeding assembly of the utility model;

[0024] Figure 3 It is a schematic structural diagram of the heat-conducting housing member of the utility model.

[0025] In the figure: 1, calender body; 20, reciprocating feeding assembly; 30, spiral feeding mechanism;

[0026] 21. Conical feeding hopper; 22. Mounting plate 1; 23. Mounting seat; 24. Guide rod; 25. Telescopic rod assembly; 26. Polyurethane anti-collision plate;

[0027] 31. heat-conducting housing; 32. arc-shaped discharge port; 33. feed hopper; 34. auger; 35. drive device; 36. bracket; 37. second mounting plate;

[0028] 251. Electric push rod;

[0029] 311. Inner tube body; 312. Outer tube body; 313. Heat transfer cavity; 314. Spiral guide ring plate; 315. Oil inlet; 316. Oil outlet. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0031] It should be noted that these drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0032] Reference Figure 1-3, is an automatic feeding mechanism of a calender disclosed in the utility model, comprising: a calender body 1 and a reciprocating feeding assembly 20 installed on one side thereof, a spiral feeding mechanism 30 with a preheating function is installed on the side of the feeding assembly away from the calender body 1, the reciprocating feeding assembly 20 comprises an inclined conical feeding hopper 21 and two mounting plates 22, the two sides of the conical feeding hopper 21 are respectively connected with mounting seats 23, guide rods 24 are respectively penetrated on the mounting seats 23, the two ends of the guide rods 24 are respectively connected to the opposite sides of the mounting plates 22, one of the mounting plates 22 is connected with a telescopic rod assembly 25 for driving the conical feeding hopper 21 to reciprocate, the telescopic rod assembly 25 comprises at least one electric push rod 251, one end of the electric push rod 251 is divided into The spiral feeding mechanism 30 is connected to the conical feeding hopper 21, and the discharging end of the spiral feeding mechanism 30 is always located on the inner side of the conical feeding hopper 21 and does not contact it. The bottom end of the conical feeding hopper 21 is located above the rubber mixing rollers of the calender body 1; the spiral feeding mechanism 30 evenly conveys the rubber compound after the hot mill to the conical feeding hopper 21, and prevents the rubber compound after the hot mill from being calendered in the form of huge blocks, thereby improving the uniformity of the calendering of the rubber compound, and drives the conical feeding hopper 21 to move back and forth under the action of the electric push rod 251, so that the conveyed rubber compound is evenly distributed on the rubber mixing rollers of the calender body 1, to prevent concentrated accumulation, and form interval feeding, so that the rubber compound is more evenly calendered between the rollers of each section, thereby preventing the calendered rubber sheet from being too thick, and reducing defects such as bubbles and impurities in the rubber.

[0033] The spiral feeding mechanism 30 includes a plurality of brackets 36 and a heat-conducting shell member 31 which is arranged obliquely. The higher end of the heat-conducting shell member 31 is provided with an arc-shaped discharge port 32. The lower end of the heat-conducting shell member 31 is provided with a feed hopper 33. The cross section of the feed hopper 33 is conical. The arc-shaped discharge port 32 is always located on the inner side of the conical feeding hopper 21 and does not contact it. The inner side of the heat-conducting shell member 31 is rotatably connected with an auger 34. The surface of the arc-shaped discharge port 32 is connected with a mounting plate 2 37. The mounting plate 2 37 is connected with a driving device 35 for driving the auger 34 to rotate. The heat-conducting shell member 31 includes an inner tube body 311 and an outer tube body 312. A heat-conducting cavity 313 is formed between the inner tube body 311 and the outer tube body 312. A spiral guide ring plate 314 is connected in the heat-conducting cavity 313. The top side of the outer tube body 312 is connected with an oil inlet 315 , an oil outlet 316 is connected to one side of the bottom of the outer tube body 312, and one end of the oil inlet 315 and the oil outlet 316 respectively extend into the heat conduction cavity 313; the driving device 35 is a servo motor. When the driving device 35 drives the auger 34 to transport and output materials, the curved shape of the arc-shaped outlet 32 ​​can effectively reduce the accumulation and blockage of materials during the transportation process, and better adapt to the layout of the production site. The outer wall of the spiral guide ring plate 314 is connected to the outer tube body 312, and the inner wall is connected to the inner tube body 311, so that the heat conduction cavity 313 forms a spiral guide channel. When the driving device 35 drives the auger 34 to continuously transport the rubber material, the external heat conduction oil flows along the oil inlet 315 into the heat conduction cavity 313, and under the action of the spiral guide ring plate 314, the heat conduction oil moves in a spiral motion in the heat conduction cavity 313, so as to fully preheat and insulate the transported rubber material.

[0034] A polyurethane anti-collision plate 26 is connected to one side of the conical feeding hopper 21 close to the mounting plate 22; when the conical feeding hopper 21 moves back and forth, the polyurethane anti-collision plate 26 prevents the conical feeding hopper 21 from contacting the mounting plate 22 to generate pressure deformation, thereby improving the anti-collision protection performance of the conical feeding hopper 21.

[0035] The implementation principle of this embodiment is as follows: when in use, the external heat mixer pours the refining rubber into the feed hopper 33, and then the driving device 35 drives the auger 34 to rotate, and evenly conveys the rubber to the conical feeding hopper 21. At this time, the external heat transfer oil flows along the oil inlet 315 into the heat transfer cavity 313, and under the action of the spiral guide ring plate 314, the heat transfer oil spirally moves to fully preheat and keep the conveyed rubber, and then the rubber is conveyed to the conical feeding hopper 21. At this time, the electric push rod 251 drives the conical feeding hopper 21 to move back and forth, so that the conveyed rubber is evenly distributed on the rubber mixing roller of the calender body 1 to prevent concentrated accumulation and form interval feeding. At the same time, the rubber can be more evenly calendered between each section of the rollers.

[0036] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An automatic feeding mechanism for a calender, characterized in that: include: A calender body (1) and a reciprocating feeding assembly (20) installed on one side thereof, wherein a spiral feeding mechanism (30) having a preheating function is installed on the side of the feeding assembly away from the calender body (1); The reciprocating feeding assembly (20) comprises an inclined conical feeding hopper (21) and two mounting plates (22). The two sides of the conical feeding hopper (21) are respectively connected to mounting seats (23). The mounting seats (23) are respectively provided with guide rods (24). The two ends of the guide rods (24) are respectively connected to the opposite sides of the mounting plate (22). One of the mounting plates (22) is connected to a telescopic rod assembly (25) for driving the conical feeding hopper (21) to reciprocate. The discharge end of the spiral feeding mechanism (30) is always located on the inner side of the conical feeding hopper (21) and does not contact it. The bottom end of the conical feeding hopper (21) is located above between the rubber mixing rollers of the calender body (1).

2. The automatic feeding mechanism of a calender according to claim 1, characterized in that: The spiral feeding mechanism (30) comprises a plurality of brackets (36) and a heat-conducting housing member (31) arranged obliquely, wherein the higher end of the heat-conducting housing member (31) is provided with an arc-shaped discharge port (32), and the lower end of the heat-conducting housing member (31) is provided with a feed hopper (33), the arc-shaped discharge port (32) is always located on the inner side of the conical feeding hopper (21) and does not contact the conical feeding hopper (21), an auger (34) is rotatably connected to the inner side of the heat-conducting housing member (31), a second mounting plate (37) is connected to the surface of the arc-shaped discharge port (32), and a driving device (35) for driving the auger (34) to rotate is connected to the second mounting plate (37).

3. The automatic feeding mechanism of a calender according to claim 2, characterized in that: The heat-conducting housing (31) comprises an inner tube body (311) and an outer tube body (312); a heat-conducting cavity (313) is formed between the inner tube body (311) and the outer tube body (312); a spiral guide ring plate (314) is connected to the heat-conducting cavity (313); a top side of the outer tube body (312) is connected to an oil inlet (315); a bottom side of the outer tube body (312) is connected to an oil outlet (316); one end of the oil inlet (315) and one end of the oil outlet (316) respectively extend into the heat-conducting cavity (313).

4. The automatic feeding mechanism of a calender according to claim 1, characterized in that: The telescopic rod assembly (25) comprises at least one electric push rod (251), one end of each electric push rod (251) being connected to the conical feeding hopper (21).

5. The automatic feeding mechanism of a calender according to claim 1, characterized in that: The conical feeding hopper (21) is connected to a polyurethane anti-collision plate (26) on one side close to the mounting plate 1 (22).

6. The automatic feeding mechanism of a calender according to claim 2, characterized in that: The cross section of the feed hopper (33) is conical.

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