CN204954517U - Quick elevation structure of bottom roll of grinder - Google Patents

Abstract

The utility model discloses a quick elevation structure of bottom roll of grinder, including the bottom roll that is located frame top and with the fixing base of minute row in the left and right both sides of frame, the tip of bottom roll is provided with the bearing frame, preceding on the fixing base is provided with preceding swing arm, back swing arm after, respectively, lever connection is passed through to the upper end of preceding swing arm, back swing arm, the department is provided with T type seat in the middle of on the lever, T type seat is connected with the bearing frame of bottom roll, wherein but connect through rotary joint between lever and the T type seat, the rear end of back swing arm is connected with push -pull air cylinder, wherein connect through pulling out the fork between back swing arm and the push -pull air cylinder, the lever steering structure that this structure is formed through preceding swing arm, lever, back swing arm to the grinder, cooperation T type seat control bottom roll goes up and down, realizes the quick lift control to the bottom roll, the easy maintenance of simple structure not only, in addition to parts especially cylinder require lowerly, be favorable to technological popularization and application.

Description

A rapid lifting structure of the bottom roller of a sanding machine

technical field

The utility model relates to the field of sanding machines, in particular to a lifting control structure for the bottom roller of the sanding machine.

Background technique

The metal plate sander is a kind of metal surface that is uneven, uneven in thickness, and does not meet the process requirements by physical treatment with abrasive cloth, grinding wheel, sandpaper, scouring pad, non-woven polishing wheel, etc. to make it smoother. The equipment with flatness, uniform thickness and consistent standards is mostly used in the production of various veneers, the production of standard structural parts, the toy handicraft industry, the decoration and furniture industry, the floor wall panel building material industry, etc., among which the sand roller of the sander is the one for grinding The important part of the step is to grind the plate with the bottom roller. For details, please refer to the "Continuous Sand Mill for Metal Plate Surface" with the patent number 201210181208.9. During the processing of the equipment, the bottom roller under the sanding roller will go up and down, especially when an emergency needs to be stopped. For details, please refer to the "Automatic Lifting Device for Thickness Roller of Sanding Machine" with application number 200920167728.8. However, once the bottom roller is not loosened in time or is not stable enough, the sand roller clamping the metal plate will inevitably wear it at this time, directly making the original metal plate scrapped, so it is necessary to improve this problem.

Contents of the invention

In order to overcome the deficiencies of the prior art, the utility model provides a fast lifting structure for the bottom roller of a sander.

The technical scheme that the utility model solves its technical problem adopts is:

A fast lifting structure for the bottom roller of a sanding machine, comprising a bottom roller located above the frame and fixed seats arranged on the left and right sides of the frame, the end of the bottom roller is provided with a bearing seat, the The front and rear on the fixed seat are respectively provided with a front swing arm and a rear swing arm. The upper ends of the front swing arm and the rear swing arm are connected by a lever, and a T-shaped seat is arranged in the middle of the lever. The seat is connected with the bearing seat of the bottom roller, wherein the lever and the T-shaped seat are connected through a rotatable joint, and the rear end of the rear swing arm is connected with a push-pull cylinder, wherein the rear swing arm and the push-pull cylinder are connected by a Fork connection.

As a preferred item, fixed guide rods are respectively arranged between the front end and the rear end of the bearing seat and the T-shaped seat, and guide sleeves connected with the machine frame are covered on the outer surface of the fixed guide rods.

As a preferred option, a top plate is provided at the lower end of the guide sleeve, wherein a bearing spring is provided at a middle position between the top plate and the T-shaped seat.

As a preferred option, a guide ring and an oil seal are arranged between the fixed guide rod and the guide sleeve.

As a preferred option, the front swing arm and the rear swing arm on the left and right sides of the frame are respectively connected by a front eccentric shaft and a rear eccentric shaft.

As a preferred option, height-adjustable bolts are arranged between the T-shaped seat and the rotatable joint.

The beneficial effect of the utility model is: the structure aims at the fast lifting requirement of the sander to the bottom roller, through reasonable structural improvement, especially through the lever control structure composed of the front swing arm, the lever and the rear swing arm, and cooperates with the T-shaped seat Control the lifting of the bottom roller to realize the rapid lifting control of the bottom roller. Not only the structure is simple and easy to maintain, but also the requirements for components, especially the cylinder, are low, which is conducive to the popularization and application of technology. In addition, with the design of the fixed guide rod, the movement is further improved Stability, and through the design of the front and rear eccentric shafts, it is convenient for the flexible fine-tuning of the lifting structure for the wear of the bottom roller.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is a perspective view of the utility model;

Fig. 2 is a left view of the utility model;

Fig. 3 is an exploded view of the left view part of the utility model.

detailed description

Referring to Fig. 1, Fig. 2 and Fig. 3, a bottom roller rapid lifting structure of a sander includes a bottom roller 2 located above the frame 1 and fixed seats 11 arranged on the left and right sides of the frame 1, The end of the bottom roller 2 is provided with a bearing housing 21 . The front and rear on the fixed seat are respectively provided with a front swing arm 3 and a rear swing arm 4, and the upper ends of the front swing arm 3 and the rear swing arm 4 are connected by a lever 5, that is, the front swing arm 3 and the rear swing arm 4 It is rotatably connected with the lever 5 and the fixed seat 11 to form a movable structure. A T-shaped seat 6 is provided in the middle of the lever 5, and the T-shaped seat 6 is connected to the bearing seat 21 of the bottom roller 2, wherein the lever 5 and the T-shaped seat 6 are connected by a rotatable joint 51, That is, the lifting activity of the T-shaped seat 6 can drive the bottom roller 2 to lift. The rear end of the rear swing arm 4 is connected with a push-pull cylinder 41 , wherein the rear swing arm 4 and the push-pull cylinder 41 are connected by a fork 42 . During specific work, when the push-pull cylinder 41 does telescopic action, it can drive the fork 42 to rotate, and then control the rotation of the rear swing arm 4, and the rear swing arm 4 can drive the lever 5 to swing up and down, and then control the T-shaped seat 6 to lift, and then Realize the rapid lifting control of the bottom roller 2. Compared with the original structure of directly controlling the bottom roller 2 with a motor or an oil cylinder, this structure utilizes the leverage principle of the lever 5 and cooperates with the universal motion guiding part of the rotatable joint 51 and the bearing seat 21 to control the vertical lifting of the bottom roller 2. The push-pull cylinder 41 and other parts have lower requirements on tolerance and wear resistance, and the lifting is more stable, which can better adapt to the requirements for the fast lifting control of the bottom roller 2.

A height-adjustable bolt 52 is arranged between the T-shaped seat 6 and the rotatable joint 51, so that the height of the bottom roller 2 can be fine-tuned during assembly, and the adaptability is stronger.

As another embodiment, referring to Fig. 1, Fig. 2 and Fig. 3, a bottom roller rapid lifting structure of a sander includes a bottom roller 2 located above the frame 1 and arranged on the left and right sides of the frame 1 The fixed seat 11 on both sides, the end of the bottom roller 2 is provided with a bearing seat 21, the front and rear on the fixed seat are respectively provided with a front swing arm 3, a rear swing arm 4, the front swing arm 3, The upper end of the rear swing arm 4 is connected by a lever 5, and a T-shaped seat 6 is arranged in the middle of the lever 5, and the T-shaped seat 6 is connected with the bearing housing 21 of the bottom roller 2, wherein the lever 5 and the T-shaped The seats 6 are connected by a rotatable joint 51, and the rear end of the rear swing arm 4 is connected with a push-pull cylinder 41, wherein the rear swing arm 4 and the push-pull cylinder 41 are connected by a fork 42, and the bearing seat 21 Between the front end and the rear end of the T-shaped seat 6, fixed guide rods 7 are respectively arranged, and the outer cover of the fixed guide rods 7 is equipped with a guide sleeve 71 connected with the frame 1, and the structure of the fixed guide rod 7 is matched by the guide sleeve 7. Guide the bottom roller 2 to rise and fall quickly, and the movement stability can be guaranteed. The lower end of the guide sleeve 71 is provided with a top plate 8, wherein the middle position between the top plate 8 and the T-shaped seat 6 is provided with a bearing spring 81, which can be used as an auxiliary guide for the guide error in the vertical direction of the fixed guide rod 7. , and assist in maintaining the balance at the fixed guide rods 7 on both sides of the T-shaped seat 6. A guide ring 72 and an oil seal 73 are arranged between the fixed guide rod 7 and the guide sleeve 71 to further improve the movement stability.

As another embodiment, referring to Fig. 1, Fig. 2 and Fig. 3, a bottom roller rapid lifting structure of a sander includes a bottom roller 2 located above the frame 1 and arranged on the left and right sides of the frame 1 The fixed seat 11 on both sides, the end of the bottom roller 2 is provided with a bearing seat 21, the front and rear on the fixed seat are respectively provided with a front swing arm 3, a rear swing arm 4, the front swing arm 3, The upper end of the rear swing arm 4 is connected by a lever 5, and a T-shaped seat 6 is arranged in the middle of the lever 5, and the T-shaped seat 6 is connected with the bearing housing 21 of the bottom roller 2, wherein the lever 5 and the T-shaped The seats 6 are connected by a rotatable joint 51, and the rear end of the rear swing arm 4 is connected with a push-pull cylinder 41, wherein the rear swing arm 4 and the push-pull cylinder 41 are connected by a fork 42, and the frame 1 The front swing arm 3 and the rear swing arm 4 on the left and right sides are respectively connected by a front eccentric shaft 31 and a rear eccentric shaft 43 . When used for a long time, the diameter of the bottom roller 2 will become smaller due to wear. At this time, the height of the bottom roller and the vertical direction of the emery roller can be adjusted by readjusting the installation angle of the front eccentric shaft 31 and the rear eccentric shaft 43. Flatness adjustment. Specifically, the rear eccentric shaft 43 is used for rough adjustment by the push-pull cylinder 41 through the lever principle, and the front eccentric shaft 31 is equipped with a hand wheel for manual fine-tuning.

According to the above principles, the utility model can also make appropriate changes and modifications to the above embodiments. Therefore, the utility model is not limited to the specific implementation manners disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model.

Claims (6)

1. the bottom roller fast lifting structure of a sander, comprise the bottom roller (2) that is positioned at frame (1) top and with point to be listed in frame (1) left, the holder (11) of right both sides, the end of described bottom roller (2) is provided with bearing block (21), it is characterized in that: before on described holder, after be respectively arranged with front swing arm (3), rear-swing arm (4), described front swing arm (3), the upper end of rear-swing arm (4) is connected by lever (5), middle on described lever (5) is provided with T-shaped seat (6), described T-shaped seat (6) is connected with the bearing block (21) of bottom roller (2), connected by But rotary joint (51) between wherein said lever (5) and T-shaped seat (6), the rear end of described rear-swing arm (4) is connected with push-and-pull cylinder (41), connected by fork (42) between wherein said rear-swing arm (4) and push-and-pull cylinder (41).

2. the bottom roller fast lifting structure of a kind of sander according to claim 1, it is characterized in that: between the front and back ends of described bearing block (21) and T-shaped seat (6), be respectively arranged with fixed guide pole (7), outside described fixed guide pole (7), be set with the fairlead (71) be connected with frame (1).

3. the bottom roller fast lifting structure of a kind of sander according to claim 2, it is characterized in that: the lower end of described fairlead (71) is provided with top board (8), and between wherein said top board (8) and T-shaped seat (6), middle position is provided with pressure-bearing spring (81).

4. the bottom roller fast lifting structure of a kind of sander according to claim 2, is characterized in that: be provided with guide collar (72) and oil sealing (73) between described fixed guide pole (7) and fairlead (71).

5. the bottom roller fast lifting structure of a kind of sander according to claim 1, is characterized in that: connect respectively by pre-eccentric axle (31), rear eccentric shaft (43) between the front swing arm (3) of described frame (1) arranged on left and right sides, rear-swing arm (4).

6. the roller fast lifting structure at the bottom of a kind of sander according to claim 1, is characterized in that: be provided with adjustable height bolt (52) between described T-shaped seat (6) and But rotary joint (51).