Pressing device of open mill

Abstract

The utility model discloses a material pressing device of an open mill, which comprises the open mill, supports are arranged at the upper end of the open mill, a sliding chute is arranged in the side wall of each support, a blanking hopper is arranged between the supports, the blanking hopper is positioned above two rollers of the open mill, and a lifting device is arranged in each support and is in power connection with the blanking hopper. A pressing mechanism is arranged on the support and located in the discharging hopper, and guiding devices are arranged on the discharging hopper and the support. The utility model belongs to the technical field of blanking of open mills, and particularly relates to a material pressing device of an open mill, which is used for solving the problems of high labor intensity and potential safety hazard caused by manual material pressing when the open mill is used for feeding rubber in the prior art.

Description

Technical Field

[0001] The utility model belongs to the technical field of material feeding of an open mixing mill, in particular to a material pressing device of an open mixing mill. Background Art

[0002] Open mixing mill is the abbreviation of open rubber mixing mill. In plastic products factories, people are accustomed to calling it a two-roll mill. The rubber material entering the open mixing mill for extrusion is generally mixed and made by an internal mixer. After the rubber material is processed in the internal mixer, it is generally in a lump or pile shape, and is accompanied by a lot of loose rubber materials of irregular sizes and shapes. Large pieces of lump or pile rubber are easy to accumulate between the two rollers of the open mixing mill and are difficult to enter the roller gap between the two rollers for extrusion. That is, the existing open mixing mill is prone to difficulty in eating rubber, affecting the processing efficiency.

[0003] In the prior art, in order to ensure smooth rubber feeding of the mixing mill, the rubber is often squeezed manually with the help of tools, which has some disadvantages: manual pressing is labor-intensive, and the pressing tool is easily sucked into the two rollers of the mixing mill, posing a safety hazard. Therefore, improvements are needed. Utility Model Content

[0004] The technical problem to be solved by the utility model is that in the prior art, when the open mixing mill is eating glue, it is necessary to press the material manually, which has great labor intensity and potential safety hazards.

[0005] In order to realize the above functions, the technical scheme adopted by the utility model is as follows: a material pressing device of an open mill, comprising an open mill, a bracket is provided at the upper end of the open mill, a slide groove is provided in the side wall of the bracket, a lower hopper is provided between the brackets, the lower hopper is located above the two rollers of the open mill, a lifting device is provided in the bracket and is dynamically connected to the material discharge, a material pressing mechanism is provided on the bracket and is located in the lower hopper, and a guiding device is provided on the lower hopper and the bracket; the material pressing mechanism comprises a hydraulic cylinder, and the hydraulic cylinder is fixedly connected to the lower end surface of the bracket The output end of the hydraulic cylinder is provided with a lifting plate, and the lifting plate is arranged in the shape of a hollow cavity. A pressing plate is slidably provided in the lifting plate, and a limiting plate is provided at the upper end of the pressing plate. A spring is provided at the upper end of the limiting plate, and the other end of the spring is connected to the inside of the lifting plate. When the hydraulic cylinder drives the lifting plate to descend, the pressing plate descends synchronously, and the pressing plate can press and feed the rubber material between the two rollers of the mixing mill. At the same time, the limiting plate at the upper end of the pressing plate can prevent the pressing plate from detaching from the lifting plate, so that the mixing mill can be pressed more safely, reliably and efficiently.

[0006] Furthermore, the lifting device includes a slider, which is fixed to the two side walls of the lower hopper, and the slider slides in the slide groove. A motor is provided inside the bracket, and a bevel gear 1 is provided at the output end of the motor. A screw rod is rotatably provided in the slide groove and is threadedly connected to the slider. A bevel gear 2 is provided at the upper end of the screw rod and is meshed with bevel gear 1. The lifting and lowering of the lower hopper is achieved through the lifting device, which helps the rubber in the lower hopper to fall smoothly between the two rollers of the mixing mill.

[0007] Furthermore, the guide device includes a guide column, which is fixed to the lower end surface of the bracket. The two side walls of the lower hopper are fixed with ring sleeves, and the guide column passes through the ring sleeves. By setting up the guide device, it is ensured that the lifting plate is relatively stable when lifting and lowering, and there will be no deflection, so that the material pressing of the open mixing mill is more uniform.

[0008] Preferably, an end plate is provided at the lower end of the guide column, and the end plate can prevent the guide column from escaping from the ring sleeve.

[0009] Preferably, the lower end of the pressing plate is configured in a pointed cone shape.

[0010] Preferably, the limiting plate is always subjected to the elastic force of the spring.

[0011] Preferably, the lower discharge port of the lower hopper is arranged in a trapezoidal funnel shape and can allow the pressing plate to pass through.

[0012] Preferably, the motor is a dual-axis motor, and the arrangement of the lead screw can ensure synchronous lifting and lowering of the sliders on both sides.

[0013] The utility model adopts the above structure to achieve the following beneficial effects:

[0014] 1. The utility model can realize the pressing of the rubber material in the lower hopper to the two rollers of the mixing mill by setting a pressing mechanism. At the same time, the pressing plate can be retracted and rebounded under the action of the spring, so that the pressing of the rubber material is more elastic, and the pressing plate is prevented from directly pressing the two rollers of the mixing mill to cause mechanical damage.

[0015] 2. The utility model can realize the lifting and lowering of the lower hopper by arranging a lifting device, so that the rubber material in the lower hopper will not overflow between the two rollers of the mixing mill, and plays a role in guiding the material discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall stereogram of a material pressing device of an open mixing mill of the utility model;

[0017] Figure 2 This is a structural diagram of a lifting device of a material pressing device of an open mixing mill according to the utility model;

[0018] Figure 3 for Figure 1 Partial appearance of the middle pressure mechanism;

[0019] Figure 4 for Figure 3 The overall appearance of the middle pressure plate;

[0020] Figure 5 for Figure 1 Structural diagram of the middle guide column.

[0021] Among them, 1. open mixing mill, 2. bracket, 3. slide, 4. lower hopper, 5. lifting device, 6. pressing mechanism, 7. guide device, 8. hydraulic cylinder, 9. lifting plate, 10. pressing plate, 11. limit plate, 12. spring, 13. slider, 14. motor, 15. bevel gear 1, 16. screw rod, 17. bevel gear 2, 18. guide column, 19. ring sleeve, 20. end plate. DETAILED DESCRIPTION

[0022] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0024] like Figure 1-5 The utility model is a material pressing device for an open mill, comprising an open mill 1, a bracket 2 is provided at the upper end of the open mill 1, a chute 3 is provided in the side wall of the bracket 2, a lower hopper 4 is provided between the brackets 2, the lower hopper 4 is located above the two rollers of the open mill 1, the lower discharge port of the lower hopper 4 is arranged in a trapezoidal funnel shape and can allow a material pressing plate 10 to pass through, a lifting device 5 is provided in the bracket 2 and is dynamically connected to the material discharge, a material pressing mechanism 6 is provided on the bracket 2 and is located in the lower hopper 4, and a guide device 7 is provided on the lower hopper 4 and the bracket 2;

[0025] like Figure 1 , 3And 4, the pressing mechanism 6 includes a hydraulic cylinder 8, which is fixed to the lower end surface of the bracket 2. A lifting plate 9 is provided at the output end of the hydraulic cylinder 8. The lifting plate 9 is arranged in the shape of a hollow cavity. A pressing plate 10 is slidably arranged in the lifting plate 9. The lower end of the pressing plate 10 is arranged in a pointed cone shape. A limiting plate 11 is provided at the upper end of the pressing plate 10. A spring 12 is provided at the upper end of the limiting plate 11. The other end of the spring 12 is connected to the inside of the lifting plate 9. The limiting plate 11 will always be subject to the elastic force of the spring 12. When the hydraulic cylinder 8 drives the lifting plate 9 to descend, the pressing plate 10 descends synchronously. The pressing plate 10 can press and feed the rubber material between the two rollers of the mixing mill 1. At the same time, the limiting plate 11 at the upper end of the pressing plate 10 can prevent the pressing plate 10 from detaching from the lifting plate 9, so that the mixing mill 1 can be pressed more safely, reliably and efficiently.

[0026] like Figure 1-2 The lifting device 5 includes a slider 13, which is fixed to the two side walls of the lower hopper 4. The slider 13 slides in the slide 3. A motor 14 is provided inside the bracket 2. A bevel gear 15 is provided at the output end of the motor 14. A screw rod 16 is rotatably provided in the slide 3 and is threadedly connected to the slider 13. A bevel gear 2 17 is provided at the upper end of the screw rod 16 and is meshed with the bevel gear 15. The motor 14 is a double-axis motor 14. The setting of the screw rod 16 can meet the synchronous lifting and lowering of the sliders 13 on both sides. The lifting and lowering of the lower hopper 4 is realized by the lifting device 5, which helps the rubber in the lower hopper 4 to fall smoothly between the two rollers of the open mixing mill 1.

[0027] like Figure 1 , 3 5, the guide device 7 includes a guide column 18, the guide column 18 is fixedly connected to the lower end surface of the bracket 2, and the lower end of the guide column 18 is provided with an end plate 20, and the end plate 20 can prevent the guide column 18 from escaping from the ring sleeve 19. The two side walls of the lower hopper 4 are fixedly connected with the ring sleeve 19, and the guide column 18 runs through the ring sleeve 19. By setting the guide device 7, it is ensured that the lifting plate 9 is relatively stable when lifting and lowering, and there will be no deflection, and the pressing of the material on the open mill 1 is more uniform.

[0028] During specific use, the rubber material to be kneaded is added to the lower hopper 4, and the motor 14 is started, and the bevel gear 15 meshes with the bevel gear 2 17 to rotate, and the bevel gear 2 17 drives the screw rod 16 to rotate in the chute 3, and the screw rod 16 drives the slider 13 to slide in the chute 3, and the slider 13 drives the lower hopper 4 to rise and fall until the lower outlet of the lower hopper 4 is at a suitable height between the two rollers of the mixing mill 1, and the rubber material will enter between the two rollers of the mixing mill 1 for kneading.

[0029] When auxiliary pressing feeding of the stock is required, the hydraulic cylinder 8 is started, the hydraulic cylinder 8 drives the lifting plate 9 to lift and lower, the collar 19 slides on the guide post 18, the pressure plate 10 moves downward, inserts between the two rollers of the mill 1, and presses the stock for feeding. The pressure plate 10 is subject to a resilience force and will expand and contract in the lifting plate 9. At the same time, the spring 12 will always have a downward elastic force on the pressure plate 10 to ensure that the pressure plate 10 always presses the stock. Since the upper end of the pressure plate 10 is provided with a limit plate 11, it will not break away from the lifting plate 9, which is safer and more reliable and saves manpower.

[0030] The above describes the present utility model and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. All in all, if those of ordinary skill in the art are inspired by it and, without departing from the gist of the creation of the present utility model, design similar structural manners and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present utility model.

Claims

1. A material pressing device for an open mixing mill, comprising an open mixing mill, wherein a bracket is provided at the upper end of the open mixing mill, and characterized in that: A slide groove is provided in the side wall of the bracket, a lower hopper is provided between the brackets, the lower hopper is located above the two rollers of the mixing mill, a lifting device is provided in the bracket and is dynamically connected to the lower material, a pressing mechanism is provided on the bracket and is located in the lower hopper, and a guiding device is provided on the lower hopper and the bracket.

2. A material pressing device for an open mixing mill according to claim 1, characterized in that: The pressing mechanism includes a hydraulic cylinder, which is fixed to the lower end surface of the bracket. A lifting plate is provided at the output end of the hydraulic cylinder. The lifting plate is arranged in the shape of a hollow cavity. A pressing plate is slidably provided in the lifting plate. A limiting plate is provided at the upper end of the pressing plate. A spring is provided at the upper end of the limiting plate. The other end of the spring is connected to the inside of the lifting plate.

3. A material pressing device for an open mixing mill according to claim 2, characterized in that: The lifting device includes a slider, which is fixed to the two side walls of the lower hopper and slides in a slide groove. A motor is provided inside the bracket, and a bevel gear 1 is provided at the output end of the motor. A screw rod is rotatably provided in the slide groove and is threadedly connected to the slider. A bevel gear 2 is provided at the upper end of the screw rod and is meshed with the bevel gear 1.

4. A material pressing device for an open mixing mill according to claim 3, characterized in that: The guide device comprises a guide column, which is fixed to the lower end surface of the bracket. Both side walls of the lower hopper are fixed with ring sleeves, and the guide column runs through the ring sleeves.

5. A material pressing device for an open mixing mill according to claim 4, characterized in that: An end plate is provided at the lower end of the guide column.

6. A material pressing device for an open mixing mill according to claim 5, characterized in that: The lower end of the pressing plate is arranged in a pointed cone shape.

7. A material pressing device for an open mixing mill according to claim 6, characterized in that: The limiting plate is always subjected to the elastic force of the spring.

8. A material pressing device for an open mixing mill according to claim 7, characterized in that: The lower discharge port of the lower hopper is arranged in a trapezoidal funnel shape and can allow the pressing plate to pass through.

9. A material pressing device for an open mixing mill according to claim 8, characterized in that: The motor is a double-shaft motor, and the arrangement of the lead screw can ensure synchronous lifting and lowering of the sliders on both sides.

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