Single-gate discharging device of double-roller machine

Abstract

The single-gate discharging device comprises a static feeding port located above two rolling cylinders and a feeding cylinder in butt joint with the upper end of the feeding port, and a left discharging guide flashboard and a movable discharging guide flashboard are arranged in the feeding cylinder. A dynamic feeding port with the wide upper end and the narrow lower end is defined by the left discharging guide flashboard, the movable discharging guide flashboard and the front side wall and the rear side wall of the feeding cylinder, the middle of the movable discharging guide flashboard is hinged to the front wall and the rear wall of the feeding cylinder, and one end of the movable discharging guide flashboard is hinged to one end of a driving rod. The other end of the driving rod is connected with a driving rod translation structure which drives the driving rod to translate in the extending direction of the driving rod, and the driving rod translation structure is hinged to the feeding cylinder. According to the single-gate discharging device of the double-roller machine, the feeding speed can be adjusted, and the problem that the requirement for adjusting the feeding speed cannot be met due to the fact that the size of a feeding port of an existing sand making machine is not changed is solved.

Description

Technical Field

[0001] The invention relates to the technical field of roller sand making machines, in particular to a single-gate unloading device for a roller machine. Background Art

[0002] A roller sand making machine usually includes a fixed roller and a movable roller. The material is fed from above the two rollers, and is continuously brought between the rollers by the squeezing roller, and discharged from the bottom of the machine with an ideal particle size. The stone is crushed into sand by the relative movement of the two rollers. In the Chinese patent literature, patent number CN202021220681X was authorized and announced on April 13, 2021. The application includes a vertical frame, a first rolling roller, a second rolling roller and a drive motor. A rolling channel is formed between the first rolling roller and the second rolling roller. The first rolling roller is rotatably connected to the frame, and the drive motor is connected to the frame. The drive motor is used to drive the first rolling roller to rotate. The frame is provided with a number of supporting feet, and the supporting feet include a bottom plate, a lifting plate, a top plate and a column arranged in sequence from bottom to top, and a positioning ring is provided on the bottom plate. The shortcoming of the roller sand making machine in the prior art is that the size of the feed port remains unchanged, so that the feed speed cannot be adjusted as needed. Summary of the invention

[0003] The present invention aims to provide a single-gate unloading device for a double-roller machine with adjustable feeding speed, which solves the problem that the size of the feeding port of the existing sand making machine is unchanged and cannot meet the need of feeding speed adjustment.

[0004] The above technical problems are solved by the following technical solutions: a single-gate unloading device for a double-roller machine, comprising a static feed port located above two rolling drums, and characterized in that it also comprises a feed drum docked at the upper end of the feed port, wherein a left unloading guide gate plate and a dynamic unloading guide gate plate are arranged in the feed drum, and the left unloading guide gate plate, the dynamic unloading guide gate plate and the front and rear side walls of the feed drum surround a dynamic feed port which is wide at the upper end and narrow at the lower end, and the middle part of the dynamic unloading guide gate plate is hinged to the front and rear walls of the feed drum, one end of the dynamic unloading guide gate plate is connected to one end of a driving rod, and the other end of the driving rod is connected to a driving rod translation structure which drives the driving rod to translate along the extension direction of the driving rod, and the driving rod translation structure is hinged to the feed drum. When in use, the driving rod is used to drive the guide gate plate to swing with the hinge point in the middle as the axis according to the needs, so as to change the size of the dynamic feed port to change the feeding speed, avoid the roller machine running without material and the feed barrel being blocked and without material. If there is no material, the feed barrel is easily damaged when the material is fed again, and it can also avoid the phenomenon of jamming caused by the feed. The existing feed is of fixed size and cannot solve the above problems.

[0005] Preferably, a right fixed material guide gate is provided in the feed barrel, the right fixed material guide gate is located above the dynamic material guide gate, the lower end of the dynamic material guide gate is lower than the lower end of the right fixed material guide gate, and the lower end of the dynamic material guide gate exceeds the right fixed material guide gate to the left, so that labor is saved when adjusting the dynamic material guide gate.

[0006] Preferably, the upper surface of the right fixed material feeding guide gate is provided with a plurality of right speed reduction strips distributed in the up-down direction, and the right speed reduction strips extend in the front-back direction. The upper surface of the left material feeding guide gate is provided with a plurality of left speed reduction strips distributed in the up-down direction, and the left speed reduction strips extend in the front-back direction. It can slow down the material feeding speed, reduce the impact on the rolling cylinder of the roller machine, and play a role in extending the life of the roller machine. The existing feeding is all about pursuing unobstructed feeding, ignoring the problem that unobstructed feeding speed will be fast, and fast feeding speed will have a great impact on the equipment, and it is believed that the rolling roller is made of iron and it does not matter.

[0007] Preferably, a thickened plate is provided at the portion of the dynamic material discharge guide gate that constitutes the dynamic material feed port, so as to extend the service life of the dynamic material discharge guide gate.

[0008] Preferably, two level gauges are arranged in the feed barrel and distributed in the up-down direction to detect the height of the stones in the feed barrel. When the material in the feed barrel accumulates to the level gauge located above, the dynamic feed port is enlarged to speed up the feeding. When the material in the feed barrel accumulates to the level gauge located below, the dynamic feed port is reduced to reduce but not reduce the feeding. The material can be maintained within the set material level range to avoid direct impact on the guide gate when the material enters the feed barrel.

[0009] Preferably, the front and rear ends of the middle part of the movable material discharge guide gate are respectively hinged to the front and rear walls of the feed barrel through a front-to-back first hinge shaft, the movable material discharge guide gate is connected to one end of the driving rod through a front-to-back second hinge shaft, and the driving rod translation structure is hinged to the feed barrel through a front-to-back third hinge shaft. The movable material discharge guide gate will not shake when it swings, which can improve the accuracy of controlling material discharge.

[0010] Preferably, the driving rod translation structure comprises a gear box connected to the driving rod for driving the driving rod to translate and a driving motor for driving the gear box, the gear box is hinged to the feed, and the driving motor is fixed to the housing of the gear box. The structure is simple and the layout is convenient.

[0011] Preferably, the driving rod is connected to the upper end of the dynamic material discharge guide gate. The force arm driven by the driving rod can be designed to be long, thereby reducing the force of opening and closing the dynamic material discharge guide gate, so that a small power motor can also drive it.

[0012] Preferably, it also includes a support plate located below the left material guide gate plate, the upper end of which is fixed with the feed barrel, and a feed trough located at the upper end of the feed barrel, the opening direction line of the feed trough intersects with the left material guide gate plate, the left material guide gate plate is disconnected from the feed barrel and can move relatively, the lower end of the support plate is fixed with the feed barrel through an inclined support frame, the lower surface of the left material guide gate plate is fixedly connected with a guide rod penetrating the support plate, the guide rod is sleeved with a shock-absorbing spring for driving the left material guide gate plate to reset, a sound insulation sponge is arranged between the support plate and the left material guide gate plate, and when the left material guide gate plate is in a free state, the thickness of the sound insulation sponge is equal to the distance between the left material guide gate plate and the support plate. This can reduce the damage to the left fixed material guide gate plate during material discharge, and reduce the amount of noise transmitted during material feeding.

[0013] Preferably, it also includes a water storage tank located outside the feed barrel, and a receiving chamber is enclosed between the left side wall of the feed barrel, the support plate and the inclined support frame. A push-type nozzle is arranged in the receiving chamber, and the water inlet pipe of the push-type nozzle is input into the water storage tank. The push-type nozzle is fixed together with the guide rod. The upper end of the support plate is provided with two water baffles distributed in the front-to-back direction, and a water supply trough is enclosed between the support plate and the two water baffles, and the nozzle of the push-type nozzle is located in the water supply trough. It can spray water on the material entering the roller machine synchronously during feeding, and the water is brought to the rolling roller by the stone to cool the rolling roller, so as to avoid the rolling roller from softening due to long-term action, which is easy to wear and shorten the service life. The water is output through the sound insulation sponge, which can improve the sound insulation effect of the sound insulation sponge.

[0014] The beneficial effect of the present invention is that the size of the feed opening can be adjusted, so that the feed speed can be changed by changing the size of the feed opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the first embodiment of the present invention; Figure 2 It is a schematic diagram of removing the feed barrel and feeding; Figure 3 is a schematic diagram of a second embodiment of the present invention; Figure 4 for Figure 3 A local enlarged schematic diagram of point A.

[0016] In the figure: rolling drum 1, static feed port 2, casing 3, feed drum 4, left feed guide gate 5, dynamic feed guide gate 6, dynamic feed port 7, first front-to-back hinge shaft 8, second front-to-back hinge shaft 9, drive rod 10, drive rod translation structure 11, third front-to-back hinge shaft 12, gear box 13, drive motor 14, right fixed feed guide gate 15, right speed reduction strip 16, left speed reduction strip 17, thickening plate 18, material level meter 19, support plate 20, feed trough 21, inclined support frame 22, guide rod 23, shock absorbing spring 24, sound insulation sponge 25, water storage tank 26, accommodating chamber 27, push-type sprinkler 28, water inlet pipe 33 of push-type sprinkler, water baffle 29, water supply trough 30, nozzle 31 of push-type sprinkler, shielding inclined plate 32. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Example 1, see Figure 1 and Figure 2A single-gate unloading device for a roller mill includes a static feed port 2 located above two rolling drums 1. The rolling drum is located inside a casing 3. The static feed port is arranged at the upper end of the casing. It also includes a feed barrel 4 docked at the upper end of the feed port. A left unloading guide gate plate 5 and a dynamic unloading guide gate plate 6 are arranged inside the feed barrel. The left unloading guide gate plate, the dynamic unloading guide gate plate and the front and rear side walls of the feed barrel surround a dynamic feed port 7 with a wide upper end and a narrow lower end. The front and rear ends of the middle part of the dynamic unloading guide gate plate are respectively hinged to the front and rear walls of the feed barrel through a front-to-back first hinge shaft 8. The upper end of the dynamic unloading guide gate plate is connected to one end of a driving rod 10 through a front-to-back second hinge shaft 9. The other end of the driving rod is connected to a driving rod translation structure 11 that drives the driving rod to translate along the extension direction of the driving rod. The driving rod translation structure is hinged to the feed barrel through a front-to-back third hinge shaft 12. The driving rod translation structure includes a gear box 13 connected to the driving rod for driving the driving rod to translate and a driving motor 14 for driving the gear box. The gear box is hinged with the feed through the third hinge shaft in the front-to-back direction, and the driving motor is fixed with the outer shell of the gear box. A right fixed material guide gate 15 is provided in the feeding barrel. The right fixed material guide gate is located above the dynamic material guide gate. The lower end of the dynamic material guide gate is lower than the lower end of the right fixed material guide gate, and the lower end of the dynamic material guide gate exceeds the right fixed material guide gate to the left. The upper surface of the right fixed material guide gate is provided with a plurality of right speed reduction bars 16 distributed in the up-down direction, and the right speed reduction bar extends in the front-to-back direction. The upper surface of the left material guide gate is provided with a plurality of left speed reduction bars 17 distributed in the up-down direction, and the left speed reduction bar extends in the front-to-back direction. A thickening plate 18 is provided at the part where the dynamic material guide gate constitutes the dynamic feed port. Two material level meters 19 distributed in the up-down direction are provided in the feeding barrel to detect the height of the stone filled in the feeding barrel. When the material in the feed barrel accumulates to the point where it is detected by the material level meter located above, the dynamic feed port is enlarged to speed up the feeding. When the material in the feed barrel accumulates to the point where it cannot be detected by the material level meter located below, the dynamic feed port is reduced to reduce the feeding but not the material. This can keep the material within the set material level range and prevent the material from directly hitting the guide gate when entering the feed barrel.

[0019] When in use, the driving rod is used to drive the guide gate plate to swing with the hinge point in the middle as the axis according to the needs, so as to change the size of the dynamic feed port to change the feeding speed, avoid the roller machine running without material and the feed barrel being blocked and without material. If there is no material, the feed barrel is easily damaged when the material is fed again, and it can also avoid the phenomenon of jamming caused by the feed. The existing feed is of fixed size and cannot solve the above problems.

[0020] Embodiment 2 is different from Embodiment 1 in that: See also Figure 3 and Figure 4, and also includes a support plate 20 located below the left material guide gate plate, the upper end of which is fixed with the feed barrel, and a feed trough 21 located at the upper end of the feed barrel. The opening direction line of the feed trough intersects with the left material guide gate plate. The left material guide gate plate and the feed barrel are disconnected and can move relatively. The feed barrel is fixedly and sealedly connected with a shielding inclined plate 32 that blocks the gap between the upper end of the left material guide gate plate and the feed barrel. The lower end of the support plate is fixed with the feed barrel through an inclined support frame 22. The lower surface of the left material guide gate plate is fixedly connected with a guide rod 23 that is penetrated by the support plate. The guide rod is sleeved with a shock-absorbing spring 24 that drives the left material guide gate plate to reset. A sound insulation sponge 25 is provided between the support plate and the left material guide gate plate. When the left material guide gate plate is in a free state, the thickness of the sound insulation sponge is equal to the distance between the left material guide gate plate and the support plate. It also includes a water storage tank 26 located outside the feed barrel, and a receiving chamber 27 is enclosed between the left side wall of the feed barrel, the support plate and the inclined support frame. A push-type nozzle 28 is arranged in the receiving chamber, and a water inlet pipe 33 of the push-type nozzle is input into the water storage tank. The push-type nozzle is fixed together with the guide rod. Two water baffles 29 distributed along the front-back direction are arranged at the upper end of the support plate. A water supply trough 30 is enclosed between the support plate and the two water baffles, and a nozzle 31 of the push-type nozzle is located in the water supply trough. It can spray water on the materials entering the roller machine synchronously during feeding, and the water is brought to the rolling roller by the stone to cool the rolling roller, so as to avoid the rolling roller from softening due to long-term action, which is easy to wear and shorten the service life.

[0021] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A single-gate unloading device for a roller mill, comprising a static feed port located above two rolling drums, characterized in that: It also includes a feed barrel docked at the upper end of the feed port, wherein a left feed guide gate and a dynamic feed guide gate are arranged in the feed barrel, the left feed guide gate, the dynamic feed guide gate and the front and rear side walls of the feed barrel surround a dynamic feed port which is wide at the upper end and narrow at the lower end, the middle portion of the dynamic feed guide gate is hinged to the front and rear walls of the feed barrel, one end of the dynamic feed guide gate is connected to one end of a driving rod, the other end of the driving rod is connected to a driving rod translation structure which drives the driving rod to translate along the extension direction of the driving rod, and the driving rod translation structure is hinged to the feed barrel.

2. The single-gate unloading device for a roller mill according to claim 1 is characterized in that: A right fixed material guide gate is provided in the feed barrel, and the right fixed material guide gate is located above the dynamic material guide gate. The lower end of the dynamic material guide gate is lower than the lower end of the right fixed material guide gate, and the lower end of the dynamic material guide gate exceeds the right fixed material guide gate to the left.

3. The single-gate unloading device for a roller mill according to claim 2 is characterized in that: The upper surface of the right fixed material unloading guide gate is provided with a plurality of right speed reduction strips distributed along the up-down direction, and the right speed reduction strips extend along the front-back direction. The upper surface of the left material unloading guide gate is provided with a plurality of left speed reduction strips distributed along the up-down direction, and the left speed reduction strip extends along the front-back direction.

4. The single-gate unloading device for a roller mill according to claim 1, 2 or 3, characterized in that: A thickened plate is provided at the position where the dynamic material discharge guide gate constitutes the dynamic feed port.

5. The single-gate unloading device for a roller mill according to claim 1, 2 or 3, characterized in that: It also includes two level meters arranged in the feeding barrel and distributed in the up-down direction for detecting the height to which the stones are filled in the feeding barrel.

6. The single-gate unloading device for a roller mill according to claim 1, 2 or 3, characterized in that: The front and rear ends of the middle part of the movable material discharge guide gate are respectively hinged to the front and rear walls of the feed barrel through a front-to-back first hinge shaft, the movable material discharge guide gate is connected to one end of the driving rod through a front-to-back second hinge shaft, and the driving rod translation structure is hinged to the feed barrel through a front-to-back third hinge shaft. The movable material discharge guide gate will not shake when it swings.

7. The single-gate unloading device for a roller mill according to claim 1, 2 or 3, characterized in that: The driving rod translation structure includes a gear box connected to the driving rod for driving the driving rod to translate and a driving motor for driving the gear box. The gear box is hinged to the feed, and the driving motor is fixed to the outer shell of the gear box.

8. The single-gate unloading device for a roller mill according to claim 1, 2 or 3, characterized in that: The driving rod is connected to the upper end of the dynamic material unloading guide gate.

9. The single-gate unloading device for a roller mill according to claim 1, 2 or 3, characterized in that: It also includes a support plate located below the left material lower guide gate plate, whose upper end is fixed to the feed barrel, and a feed trough located at the upper end of the feed barrel, the opening direction line of the feed trough intersects with the left material lower guide gate plate, the left material lower guide gate plate is disconnected from the feed barrel and can move relatively, the lower end of the support plate is fixed to the feed barrel through an inclined support frame, the lower surface of the left material lower guide gate plate is fixedly connected to a guide rod penetrated by the support plate, the guide rod is sleeved with a shock-absorbing spring for driving the left material lower guide gate plate to reset, a sound insulation sponge is provided between the support plate and the left material lower guide gate plate, and when the left material lower guide gate plate is in a free state, the thickness of the sound insulation sponge is equal to the distance between the left material lower guide gate plate and the support plate.

10. The single-gate unloading device for a roller mill according to claim 9, characterized in that: It also includes a water storage tank located outside the feed barrel, and an accommodating cavity is enclosed between the left side wall of the feed barrel, the support plate and the inclined support frame. A push-type nozzle is provided in the accommodating cavity, and the water inlet pipe of the push-type nozzle is input into the water storage tank. The push-type nozzle is fixed together with the guide rod, and two water baffles distributed in the front-to-back direction are provided at the upper end of the support plate. A water supply trough is enclosed between the support plate and the two water baffles, and the nozzle of the push-type nozzle is located in the water supply trough.

Images