A feeding device for a polishing machine

Abstract

The present invention relates to a feeding device of a polishing machine, which includes a lifting beam, a material hopper, a material box and a material box cover plate. By arranging the lifting beam and the material hopper at the feeding port of the polishing machine, the material box can be placed on the material hopper. The lifting motor on the lifting beam can drive the material hopper to rise through a lifting arm. The material box cover plate that can block part of the opening of the material box can prevent the castings and materials in the material box from scattering during the rising process of the material hopper, so that the castings and materials in the material box can fall into the feeding port of the polishing machine through the inclined feeding section after the material hopper rises to a preset position. Thus, the castings can be automatically filled into the polishing machine, saving manpower and improving efficiency, and solving the problem of time-consuming and laborious manual loading.

Description

Technical Field

[0001] The present invention relates to the polishing technology of castings, in particular to a feeding device for a polishing machine. Background Art

[0002] Lost foam casting (also known as full-mold casting) is a new casting method in which paraffin or foam models similar in size and shape to the casting are bonded and combined into a model cluster. After brushing and drying the refractory coating, it is vibrated and shaped in dry quartz sand and poured under negative pressure, causing the model to gasify and the liquid metal to occupy the position of the model, and then forming a casting after solidification and cooling. Lost foam casting is a new process with almost no machining allowance and precise forming. This process does not require mold removal, parting surfaces, or cores, so the casting has no flash, burrs, or draft angles, and reduces the dimensional errors caused by core combination. The surface roughness of the casting can reach Ra3.2 to 12.5 μm; the dimensional accuracy of the casting can reach CT7 to 9; the machining allowance is at most 1.5 to 2 mm, which can greatly reduce the cost of machining. Compared with the traditional sand casting method, it can reduce the machining time by 40% to 50%.

[0003] The castings manufactured by lost foam casting need to be transferred to a polishing machine for polishing the inner and outer surfaces of the castings. Due to the different sizes and shapes of the castings, it is time-consuming and laborious for manual loading of the castings into the polishing machine, and there is an urgent need for improvement. Summary of the Invention

[0004] The purpose of the present invention is to provide a feeding device for a polishing machine, which can automatically load castings into the polishing machine and solve the problem of time-consuming and laborious manual loading.

[0005] To solve the above problems, the present invention provides a feeding device for a polishing machine, including a lifting beam, a material hopper, a material box, and a material box cover plate. The material hopper is hinged and fixed to the feeding port of the polishing machine. The lifting beam is fixed in front of the polishing machine and above the feeding port. The material hopper includes a horizontal material box buckling part, a vertical connecting part, and an inclined feeding part. The material box is buckled on the horizontal material box buckling part. The end of the inclined feeding part is hinged to the feeding port through a hinge shaft. The lower end of the vertical connecting part is hinged with a lifting arm, and the upper end of the lifting arm is connected to a lifting motor fixed on the lifting beam. The upper end of the vertical connecting part is also hinged with the material box cover plate for blocking a part of the opening of the material box.

[0006] The feeding device for a polishing machine provided by the present invention also has the following technical features:

[0007] Further, a hopper connecting arm is provided at the feeding port of the polishing machine, and the end of the inclined feeding part is hinged to the hopper connecting arm through a hinge shaft.

[0008] Further, a buckle plate extending upward is provided at the end of the horizontal bin buckling part, and a buckling plate for buckling the upper edge of the material bin is provided at the upper end of the buckle plate.

[0009] Further, a hanging hole is provided at the upper end of the lifting arm, and the hoisting motor is connected to the hanging hole through a hinge and a hook.

[0010] Further, a protective hanging plate is also fixed on a side wall of the material bin cover plate, a supporting roller corresponding to the protective hanging plate is installed on the column of the hoisting beam, and when the horizontal bin buckling part of the material hopper is in a horizontal position, the supporting roller abuts against the lower side of the protective hanging plate so that the material bin cover plate is separated from the material bin.

[0011] Further, a supporting arm is provided on the column, the supporting roller is installed on the supporting arm, and a clamping groove corresponding to the protective hanging plate is provided in the middle of the supporting roller.

[0012] Further, the end of the protective hanging plate is bent away from the material bin cover plate to form a hanging ear, a cover plate anti - detachment groove matched with the hanging ear is also provided on the material hopper, and when the material hopper rises to a preset height, the hanging ear is clamped into the cover plate anti - detachment groove to prevent the material bin cover plate from detaching from the material bin during the continuous lifting process of the material hopper.

[0013] Further, a fan - shaped cover plate anti - detachment plate is provided at the vertical connecting part of the material hopper, and an arc - shaped cover plate anti - detachment groove is provided on the anti - detachment plate.

[0014] The present invention has the following beneficial effects: By arranging a hoisting beam and a material hopper at the feeding port of the polishing machine, a material bin can be placed on the material hopper, the hoisting motor on the hoisting beam can drive the material hopper to rise upward through the lifting arm, and the material bin cover plate that can block part of the opening of the material bin can prevent the castings and materials in the material bin from scattering during the rising process of the material hopper, so that after the material hopper rises to a preset position, the castings and materials in the material bin can fall into the feeding port of the polishing machine through the inclined feeding section. Thus, the castings can be automatically filled into the polishing machine, saving manpower and improving efficiency, and solving the problem that manual feeding is time - consuming and laborious. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural view of the feeding device of the polishing machine according to an embodiment of the present invention;

[0016] Figure 2 is a schematic structural view of the feeding device in an embodiment of the present invention;

[0017] Figure 3 is Figure 2 a partial enlarged view of part A in

[0018] Figure 4 is Figure 2 a partial enlarged view of part B in

[0019] Figure 5 is Figure 2 a side view of the feeding device in

[0020] Figure 6 a schematic structural view of the feeding device during the lifting process in an embodiment of the present invention;

[0021] Figure 7 is Figure 6 a partial enlarged view of part C in

[0022] Figure 8 a schematic structural view of the feeding device when lifted to the highest position in an embodiment of the present invention;

[0023] Figure 9 is Figure 8 a partial enlarged view of part D in Specific Embodiments

[0024] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments may be combined with each other.

[0025] As Figures 1 to 9 shown in an embodiment of the feeding device of the polishing machine of the present invention, the feeding device of the polishing machine in this embodiment includes a lifting beam 20, a material hopper 30, a material box 40, and a material box cover plate 50. The material hopper 30 is hinged and fixed to the feeding port 11 of the polishing machine 10. The lifting beam 20 is fixed in front of the polishing machine 10 and above the feeding port 11. The material hopper 30 includes a horizontal material box buckling portion 31, a vertical connecting portion 32, and an inclined feeding portion 33. The material box 40 is buckled on the horizontal material box buckling portion 31. The end of the inclined feeding portion 33 is hinged to the feeding port 11 through a hinge shaft 12. The lower end of the vertical connecting portion 32 is hinged with a lifting arm 60, and the upper end of the lifting arm 60 is connected to a lifting motor 21 fixed on the lifting beam 20. The upper end of the vertical connecting portion 32 is also hinged with a material box cover plate 50 for blocking a part of the opening of the material box 40. In this application, by arranging a lifting beam and a material hopper at the feeding port of the polishing machine, a material box can be placed on the material hopper, the lifting motor on the lifting beam can drive the material hopper to rise through the lifting arm, and the material box cover plate that can block a part of the opening of the material box can prevent the castings and materials in the material box from scattering during the rising of the material hopper, so that the castings and materials in the material box can fall into the feeding port of the polishing machine through the inclined feeding portion after the material hopper rises to a preset position. Thus, the polishing machine can be automatically filled with castings, saving manpower and improving efficiency, and solving the problem that manual loading is time-consuming and laborious.

[0026] In one embodiment of the present application, preferably, the area of the material box cover plate 50 is greater than or equal to 1 / 2 of the opening area of the material box 40 and less than or equal to 2 / 3 of the opening area of the material box 40. Thus, it can prevent the castings and materials in the material box from scattering during the lifting process of the material hopper, and can ensure that the castings and materials in the material box can smoothly fall into the feed port of the polishing machine through the inclined feeding part after the material hopper is lifted to the preset position.

[0027] In one embodiment of the present application, preferably, a hopper connecting arm 13 is provided at the feed port 11 of the polishing machine 10, and the end of the inclined feeding part 33 is hinged to the hopper connecting arm 13 through a hinge shaft 12. Preferably, an upwardly extending clamping plate 311 is provided at the end of the horizontal material box clamping part 31, and a clamping plate 312 for clamping the upper edge of the material box 40 is provided at the upper end of the clamping plate 311. Thus, the material box 40 is reliably fixed to the horizontal material box clamping part, preventing the material box from separating from the horizontal material box clamping part during the lifting process of the material hopper. Preferably, a hanging hole is provided at the upper end of the lifting arm 60, and the hoisting motor 21 is connected to the hanging hole through a hinge 22 and a hook 23.

[0028] In one embodiment of the present application, preferably, a protective hanging plate 51 is further fixed on one side wall of the material box cover plate 50, a supporting wheel 25 corresponding to the protective hanging plate 51 is installed on the column 24 of the hoisting beam 20, and when the horizontal material box clamping part 31 of the material hopper 30 is in a horizontal position, the supporting wheel 25 abuts against the lower side of the protective hanging plate 51, causing the material box cover plate 50 to separate from the material box 50; specifically, the protective hanging plate 51 is fixed on the material box cover plate 50 and moves with the material box cover plate 50. By providing the supporting wheel and the protective hanging plate, the rotation angle of the material box cover plate can be limited. When the horizontal material box clamping part of the material hopper is in a horizontal position, the supporting wheel can abut against the lower side of the protective hanging plate, causing the material box cover plate to separate from the material box, and the empty material box can be conveniently removed, thus facilitating the replacement of the material box. Preferably, a supporting arm 26 is provided on the column 24, a supporting wheel 25 is installed on the supporting arm 26, and a clamping groove 27 corresponding to the protective hanging plate 51 is provided in the middle of the supporting wheel 25, and the width of the clamping groove 27 is greater than or equal to the thickness of the protective hanging plate 51.

[0029] In one embodiment of the present application, preferably, an end portion of the protective hanging plate 51 is bent away from the material box cover plate 50 to form a hanging ear 52. The material hopper 30 is further provided with a cover plate anti - detachment groove 34 that cooperates with the hanging ear 52. When the material hopper 30 is raised to a preset height, the hanging ear 52 is snapped into the cover plate anti - detachment groove 34 to prevent the material box cover plate 50 from detaching from the material box 40 during the continuous lifting of the material hopper 30. Preferably, a fan - shaped cover plate anti - detachment plate 35 is provided on the vertical connecting portion 32 of the material hopper 30, and an arc - shaped cover plate anti - detachment groove 34 is provided on the anti - detachment plate 35. Thus, after the material hopper 30 is raised to the preset height, the hanging rod 52 can accurately be snapped into the cover plate anti - detachment groove 34. During the continuous lifting of the material hopper, through the cooperation of the hanging ear 52 and the cover plate anti - detachment groove 34, the material box cover plate 50 can be reliably locked on the material hopper 30, effectively preventing the material box cover plate 50 from detaching from the material box 40.

[0030] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A feeding device for a polishing machine, characterized in that, it includes a lifting beam, a material hopper, a material box and a material box cover plate. The material hopper is hinged and fixed at the feeding port of the polishing machine. The lifting beam is fixed in front of the polishing machine and above the feeding port. The material hopper includes a horizontal material box buckling part, a vertical connecting part and an inclined feeding part. The material box is buckled on the horizontal material box buckling part. The end of the inclined feeding part is hinged to the feeding port through a hinge shaft. The lower end of the vertical connecting part is hinged with a lifting arm, and the upper end of the lifting arm is connected to a lifting motor fixed on the lifting beam. The upper end of the vertical connecting part is also hinged with the material box cover plate for blocking part of the opening of the material box; a hopper connecting arm is provided at the feeding port of the polishing machine, and the end of the inclined feeding part is hinged to the hopper connecting arm through a hinge shaft; a protective hanging plate is also fixed on one side wall of the material box cover plate, and a supporting wheel corresponding to the protective hanging plate is installed on the column of the lifting beam. When the horizontal material box buckling part of the material hopper is in a horizontal position, the supporting wheel abuts against the lower side of the protective hanging plate so that the material box cover plate is separated from the material box; a supporting arm is provided on the column, and the supporting wheel is installed on the supporting arm. A clamping groove corresponding to the protective hanging plate is provided in the middle of the supporting wheel; the end of the protective hanging plate is bent in a direction away from the material box cover plate to form a hanging ear, and a cover plate anti-detachment groove for cooperating with the hanging ear is also provided on the material hopper. When the material hopper is lifted to a preset height, the hanging ear is clamped into the cover plate anti-detachment groove to prevent the material box cover plate from detaching from the material box during the continuous lifting of the material hopper; a fan-shaped cover plate anti-detachment plate is provided on the vertical connecting part of the material hopper, and an arc-shaped cover plate anti-detachment groove is provided on the anti-detachment plate.

2. The feeding device according to claim 1, characterized in that: The end of the horizontal material box buckling part is provided with a buckling plate extending upward, and the upper end of the buckling plate is provided with a buckling plate for buckling the upper edge of the material box.

3. The feeding device according to claim 1, characterized in that: The upper end of the lifting arm is provided with a hanging hole, and the lifting motor is connected to the hanging hole through a hinge and a hook.

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