Single-gate discharging device of double-roller machine

Abstract

The utility model discloses a double-roller machine single-gate discharging device which 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. The utility model aims to provide the single-gate blanking device of the double-roller machine, which can adjust the feeding speed, and solves the problem that the size of the feeding hole of the existing sand making machine is not changed and the requirement of adjusting the feeding speed cannot be met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of roll type sand making machine, especially a single gate discharging device of a pair roller machine. BACKGROUND

[0002] The roll type sand making machine usually includes fixed roller and movable roller, and the material is fed from the upper part of the two rollers, is continuously taken into the roller by the extrusion roller, and is discharged from the machine with ideal particle size. The relative movement of the two rollers crushes the stones into sand. The patent number CN202021220681X of the patent document of China was granted on April 13, 2021, and the "pair roller type sand making machine" is disclosed. The application includes a vertical frame, a first rolling roller, a second rolling roller and a driving motor. The first rolling roller and the second rolling roller form a rolling channel. The first rolling roller is rotatably connected to the frame. The driving motor is connected to the frame. The driving motor is used to drive the rotation of the first rolling roller. The frame is provided with a plurality of support feet. The support feet include a bottom plate, a raised plate, a top plate and a stand column arranged in sequence from bottom to top. The bottom plate is provided with a positioning ring. The deficiency of the prior art roll type sand making machine is that the size of the feed inlet remains unchanged, so the feed speed cannot be adjusted as needed. SUMMARY

[0003] The utility model aims at providing a single gate discharging device of a pair roller machine, which can adjust the feed speed, solves the problem that the size of the feed inlet of the existing sand making machine cannot be adjusted to meet the need of adjusting the feed speed.

[0004] The above technical problem is solved by the following technical scheme: a single gate discharging device of a pair roller machine includes a static feed inlet located above two rolling cylinders. The device is characterized in that it further includes a feed cylinder connected to the upper end of the feed inlet. The feed cylinder is provided with a left fixed discharging guide gate and a movable discharging guide gate. The left fixed discharging guide gate, the movable discharging guide gate and the front and rear side walls of the feed cylinder enclose a dynamic feed inlet with a wide upper end and a narrow lower end. The middle part of the movable discharging guide gate is hinged to the front and rear walls of the feed cylinder. One end of the movable discharging 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 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 cylinder. During use, the movable discharging guide gate is driven by the driving rod to swing around the hinge point in the middle part, thereby changing the size of the dynamic feed inlet and the discharging speed. This avoids the pair roller machine from idling without material and the feed cylinder from being blocked or running out of material. Running out of material can easily damage the feed cylinder and avoid the feed from being blocked. The existing feed inlet has a fixed size, which cannot solve the above problems.

[0005] As preferred, the feeding cylinder is provided with a right fixed discharging guide gate, which is located above the movable discharging guide gate, the lower end of the movable discharging guide gate is lower than the lower end of the right fixed discharging guide gate, and the lower end of the movable discharging guide gate extends to the left beyond the right fixed discharging guide gate. This can save labor when adjusting the movable discharging guide gate.

[0006] As preferred, the upper surface of the right fixed discharging guide gate is provided with a plurality of right speed-reducing strips distributed in the up-down direction, which extend in the front-back direction, and the upper surface of the left fixed discharging guide gate is provided with a plurality of left speed-reducing strips distributed in the up-down direction, which extend in the front-back direction. This can slow down the discharging speed, reduce the impact on the crushing cylinder of the roller mill, and prolong the service life of the roller mill. The existing feeding is to pursue smoothness, and the impact problem caused by the fast discharging speed is ignored, and it is believed that the crushing roller is made of iron and does not matter.

[0007] As preferred, the part of the movable discharging guide gate constituting the dynamic feeding port is provided with a thickened plate. This can prolong the service life of the movable discharging guide gate.

[0008] As preferred, two material level meters for detecting the height of the stones filled in the feeding cylinder are arranged in the feeding cylinder and distributed in the up-down direction. When the material in the feeding cylinder accumulates to be detected by the upper material level meter, the dynamic feeding port is enlarged to speed up the feeding, and when the material in the feeding cylinder accumulates to be undetected by the lower material level meter, the dynamic feeding port is reduced to slow down but not stop the feeding. This can maintain the material in the set material level range and avoid the material directly impacting the guide gate when entering the feeding cylinder.

[0009] As preferred, the front and back ends of the middle part of the movable discharging guide gate are hinged to the front and back walls of the feeding cylinder through a front-back first hinge shaft, the movable discharging guide gate is connected to one end of the driving rod through a front-back second hinge shaft, and the driving rod translation structure is hinged to the feeding cylinder through a front-back third hinge shaft. The movable discharging guide gate will not sway when swinging. This can improve the accuracy of controlling the discharging.

[0010] As preferred, the driving rod translation structure includes a gear box for driving the driving rod to translate and a driving motor for driving the gear box, which are connected together, the gear box is hinged to the feeding cylinder, and the driving motor is fixed to the shell of the gear box. The structure is simple and the layout is convenient.

[0011] As preferred, the driving rod is connected to the upper end of the movable discharging guide gate. This can design the force arm of the driving rod to be long, thereby reducing the force for opening and closing the movable discharging guide gate, so that a small-power motor can also drive.

[0012] The feeding inlet size can be adjusted, so that the feeding speed can be changed by changing the feeding inlet size. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a three-dimensional structural schematic view of the utility model;

[0014] Figure 2 is a schematic view of removing the feeding cylinder and feeding.

[0015] In the figure: the rolling cylinder 1, the static feeding inlet 2, the machine shell 3, the feeding cylinder 4, the left fixed down-feeding guide gate 5, the movable down-feeding guide gate 6, the dynamic feeding inlet 7, the front-to-back first hinge shaft 8, the front-to-back second hinge shaft 9, the driving rod 10, the driving rod translation structure 11, the front-to-back third hinge shaft 12, the gear box 13, the driving motor 14, the right fixed down-feeding guide gate 15, the right deceleration strip 16, the left deceleration strip 17, the thickened plate 18, the material level meter 19. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0017] Referring to Figure 1 and Figure 2The application discloses a single gate discharging device of a roller mill, which comprises a static feeding port 2 arranged above two rolling cylinders 1. The rolling cylinders are arranged in a shell 3. The static feeding port is arranged at the upper end of the shell. The device further comprises a feeding cylinder 4 which is connected to the upper end of the feeding port. The feeding cylinder is provided with a left fixed discharging guide gate 5 and a movable discharging guide gate 6. The left fixed discharging guide gate, the movable discharging guide gate and the front and back sidewalls of the feeding cylinder form a dynamic feeding port 7 which is wide at the upper end and narrow at the lower end. The front and back ends of the middle part of the movable discharging guide gate are connected to the front and back walls of the feeding cylinder through a front and back first hinge shaft 8. The upper end of the movable discharging guide gate is connected to one end of a driving rod 10 through a front and back second hinge shaft 9. The other end of the driving rod is connected to a driving rod translation structure 11 which drives the driving rod to translate along the extension direction of the driving rod. The driving rod translation structure is hinged to the feeding cylinder through a front and back third hinge shaft 12. The driving rod translation structure comprises a gear box 13 which drives the driving rod to translate and a driving motor 14 which drives the gear box. The gear box is hinged to the feeding cylinder through the front and back third hinge shaft. The driving motor is fixed to the shell of the gear box. The feeding cylinder is provided with a right fixed discharging guide gate 15 which is arranged above the movable discharging guide gate. The lower end of the movable discharging guide gate is lower than the lower end of the right fixed discharging guide gate and protrudes to the left of the right fixed discharging guide gate. The upper surface of the right fixed discharging guide gate is provided with a plurality of right speed-reducing strips 16 which are distributed along the up and down direction and extend along the front and back direction. The upper surface of the left fixed discharging guide gate is provided with a plurality of left speed-reducing strips 17 which are distributed along the up and down direction and extend along the front and back direction. The part of the movable discharging guide gate which forms the dynamic feeding port is provided with a thickened plate 18. The feeding cylinder is provided with two level meters 19 which are distributed along the up and down direction and detect the height of the stones filled in the feeding cylinder. When the material in the feeding cylinder is accumulated to the height detected by the upper level meter, the dynamic feeding port is enlarged to accelerate the feeding. When the material in the feeding cylinder is accumulated to the height which cannot be detected by the lower level meter, the dynamic feeding port is reduced to slow down the feeding but not to stop the feeding. The material can be maintained in a set level range, and the material can not directly impact the guide gate when entering the feeding cylinder.

[0018] In use, the movable discharging guide gate is swung around the hinge point in the middle part through the driving rod according to the requirement, so that the size of the dynamic feeding port is changed, the discharging speed is changed, the roller mill is prevented from idling and the feeding cylinder is prevented from being blocked and empty. When the feeding cylinder is empty, the feeding cylinder is not easily damaged and the feeding is not blocked.

[0019] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and implementations, it is to be understood that the terminology used is for the purpose of descriptive clarity and that it is intended to be limited only by the words recited in the appended claims. The scope of the present application shall be limited only by the claims.

[0020] While the embodiments of the present application have been shown and described with respect to particular embodiments thereof, it will be understood by those skilled in the art that various changes in form and details can be made therein without departing from the spirit and scope of the application. Therefore, the scope of the application should not be limited by the embodiments, but should be defined only in accordance with the following claims and their equivalents.

Claims

1. A single gate roll mill machine outfeed device comprising a static feed inlet located above two roll cylinders, characterized in that, The feeding cylinder is arranged on the upper end of the feeding port, and the left fixed down material guide gate and the movable down material guide gate are arranged in the feeding cylinder.

2. A single gate roll mill material discharge apparatus according to claim 1, wherein, The right fixed down material guide gate is arranged in the feeding cylinder, and the upper end of the movable down material guide gate is higher than the lower end of the right fixed down material guide gate.

3. A single gate roll mill material discharge apparatus according to claim 2, wherein, The upper surface of the right fixed down material guide gate is provided with a plurality of right speed reduction strips distributed in the up-down direction, and the left fixed down material guide gate is provided with a plurality of left speed reduction strips distributed in the up-down direction.

4. A single gate downer device for a pair roller machine according to claim 1 or 2 or 3, characterized in that, The part of the movable down material guide gate constituting the dynamic feeding port is provided with a thickened plate.

5. A single gate downer device for a pair roller machine as claimed in claim 1 or 2 or 3, wherein, Two material level meters for detecting the height of the filled stones in the feeding cylinder are arranged in the feeding cylinder.

6. A single gate roll down device for a pair of rolls as claimed in claim 1 or 2 or 3 wherein, The front and rear ends of the middle part of the movable down material guide gate are respectively connected to the front and rear walls of the feeding cylinder through a front and rear first hinge shaft, the movable down material guide gate is connected to one end of the driving rod through a front and rear second hinge shaft, and the driving rod translation structure is connected to the feeding cylinder through a front and rear third hinge shaft.

7. A single gate downer device for a pair roller machine as claimed in claim 1 or 2 or 3, wherein, The driving rod translation structure comprises a gear box for driving the driving rod to translate and a driving motor for driving the gear box, the gear box is connected to the driving rod, and the driving motor is fixed to the shell of the gear box.

8. A single gate downer device for a pair roller machine according to claim 1 or 2 or 3, wherein, The driving rod is connected to the upper end of the movable down material guide gate.

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