CN103158999A - No-scratching belt conveyor for conveying stamping workpieces - Google Patents

Abstract

A no-scratching belt conveyor for conveying stamping workpieces comprises a machine frame portion and a plurality of belts arranged side by side. The belts are driven by the same drive motor to rotate, and auxiliary support assemblies are arranged in the gap between two adjacent belts. A plurality of strong magnetic blocks are arranged on the front portions of start ends of the belts and are located under the belts. Each auxiliary support assembly comprises a support plate, a hairbrush roller and a lift cylinder. A plurality of airbrush rollers are arranged on the support plates side by side through round pins along the direction of the gaps between the belts. The lift cylinders which are used for driving the support plates to carry out up-and-down displacement are arranged under the support plates. Through arrangement of a plurality of sets of auxiliary support assemblies in the gaps between the belts, the stamping workpieces are separated from the belts in the stamping and cutting process, the belts are matched with the suction function of the strong magnetic blocks under the belts to enable the stamping workpieces to form attaching force on the belts at the moment of placing of the stamping workpieces, and the relative slide between the stamping workpieces and the belts is avoided.

Description

A non-scratch belt conveyor for conveying stamping workpieces

technical field

The invention relates to a belt conveyor, in particular to a non-scratch belt conveyor for conveying stamping workpieces.

Background technique

Automotive stampings, as the name suggests, are metal stampings that make up auto parts. Among automobile stamping parts, some parts become auto parts directly after stamping, and the other parts need to be welded, machined, or painted before they can become auto parts after stamping. Parts such as car body shells are typical examples. The steel materials used for cold stamping are mainly steel plates and steel strips. During the actual stamping and subsequent conveying and painting processes, scratches are not allowed, otherwise the appearance will be directly affected, which is absolutely not allowed.

At present, large and wide belts are used in the conveying process of automobile shell stamping parts, that is, the stamping workpiece is directly placed on the belt for conveying. The problems that are likely to arise with this general-purpose belt are:

1. During the process of shearing the sheet by the press, since the belt moves at a constant speed and the workpiece is in a static state, the two will slip relative to each other, causing direct damage. First, the belt is easy to scratch the stamping workpiece, causing The surface of the part is damaged, and the second is that the stamping workpiece directly scratches the belt, causing damage to the belt and reducing the service life of the belt.

2. The belt is of fixed width, and the width of the belt conveying different workpieces is different, and the adaptability is poor.

Contents of the invention

In order to solve the deficiencies of the prior art, the present invention provides a non-scratch belt conveyor for conveying stamping workpieces. One is to solve the problem of relative sliding between the existing belt and the workpiece, and the other is to have adjustability in the length and width directions. , improve the overall adaptability.

The technical solution adopted by the present invention to solve the technical problem is: a non-scratch belt conveyor for conveying stamping workpieces, including a frame part and several belts arranged side by side, and all the belts rotate under the drive of the same driving motor, It is characterized in that an auxiliary support assembly is provided in the gap between two adjacent belts, a number of strong magnetic blocks are provided at the front of the starting end of the belt, and the strong magnetic blocks are located directly below the belts,

The auxiliary support assembly includes a support plate, a brush roller and a lifting cylinder, and several brush rollers are installed side by side on the support plate through round pins along the belt gap direction, and a lifter for driving the up and down displacement of the support plate is installed under the support plate. The cylinder, the high point of the brush roller has two limit positions higher than the effective bearing surface of the belt and lower than the effective bearing surface of the belt. When the high point of the brush roller is higher than the effective bearing surface of the belt, the brush roller and the workpiece Contact, while the belt and the workpiece are separated; when the high point of the brush roller is lower than the effective bearing surface of the belt, the brush roller is in contact with the belt, and the brush roller is separated from the workpiece, and the switching process is only to lift the cylinder The reversing action; and in the two states, the strong magnetic block always has an attraction effect.

The frame part includes a crossbeam, a belt mounting frame, a pulley and a first motor, the belt mounting frame is installed on the crossbeam through a linear guide rail, and its position on the crossbeam can be adjusted under the drive of the first motor, and the The belt forms a horizontal U-shaped profile on the belt mounting frame through six pulleys, and a lead screw for adjusting the effective carrying length of the belt is installed on the belt mounting frame, and the lead screw acts under the drive of the second motor, which can Effectively adjust the carrying length of the belt to improve adaptability.

Further, the belt installation frame includes a fixed frame and a mobile frame, the fixed frame is L-shaped, the mobile frame is located at the front upper part of the fixed frame, and the two parts are connected by a first linear track, the The second motor is installed on the fixed frame, and the nut matched with the lead screw is installed on the movable frame, and the two parts are driven and relatively moved by the lead screw.

Further, there is an anti-collision structure at the front end of the belt, including an anti-collision bar, a spring and a travel switch. On belt mounts and in conjunction with bumper bars.

The belt is a timing belt with teeth.

The lower part of the crossbeam is installed on the base through wheels and guide rails, and moves sideways under the drive of a horizontally installed oil cylinder, and at the same time, a locking mechanism is provided between the crossbeam and the base.

The beneficial effects of the present invention are: the present invention sets multiple sets of auxiliary support assemblies in the belt gap, so that the stamping workpiece is isolated from the belt during the stamping and shearing process, and at the same time cooperates with the attraction of the strong magnet below, so that the stamping workpiece is A fit force is formed on the belt at the moment of placement, preventing relative sliding between the stamping workpiece and the belt.

At the same time, the belt frame part is designed so that it can be adjusted in the width and length directions, which improves the applicability of the belt and is suitable for the transportation of stamping parts of various specifications, especially the transportation of stamping parts of automobile bodies.

Description of drawings

Fig. 1 is the schematic diagram of belt section of the present invention;

Fig. 2 is A--A sectional view in Fig. 1

Fig. 3 is a schematic cutaway view of the belt gap;

Fig. 4 is B--B sectional view among Fig. 3;

Fig. 5 is a partial enlarged view at C in Fig. 3;

FIG. 6 is a partially enlarged view at D in FIG. 4 .

In the figure: 11 beam, 12 belt mounting frame, 13 pulley, 14 first motor, 15 rack and pinion transmission mechanism, 16 belt clearance, 17 linear guide rail, 2 belt, 21 first linear slide rail, 22 second motor, 23 screw, 24 nut, 31 anti-collision bar, 32 spring, 33 limit switch, 41 wheel, 42 base, 43 oil cylinder, 44 locking mechanism, 5 auxiliary support assembly, 51 support plate, 52 brush roller, 53 Lifting cylinder, 54 round pins, 6 strong magnetic blocks.

Detailed ways

As shown in Figures 1 to 6, a non-impact belt conveyor for conveying punched workpieces includes a frame part and several belts arranged side by side, and all the belts rotate under the drive of the same driving motor.

Define the X-axis as the front-to-back direction (also called the vertical direction), and the Y-axis as the left-right direction (also called the horizontal direction).

The frame part includes a beam 11 , a belt mounting frame 12 , a pulley 13 and a first motor 14 , and a pair of beams 11 are arranged across and perpendicular to the moving direction of the belt 2 . A linear guide rail 17 is installed on the upper side of the beam 11. The belt mounting frame 12 is installed on the beam through the linear guide rail and can slide left and right. It is the installation basis of the belt pulley and other components. The specific structure can be designed with reference to the attached drawings, and there may be other deformations form. Then the first motor 14 is installed on one side of the belt mounting frame 12, and the rack and pinion transmission mechanism 15 is installed between the first motor 14 and the crossbeam 11, and the position of the belt mounting frame on the crossbeam can be adjusted under the driving of the first motor 14 , form the adjustment of the belt gap 16, and then realize the adjustment of the total width of the belt. There are four groups of belt mounting frames 12 and first motors 14, forming four parallel groups of belts. In the actual operation process, the first motor uses a synchronous motor to cooperate with an encoder to achieve precise adjustment, which is easily realized by those skilled in the art and will not be repeated here. At the same time, in order to achieve the synchronous effect, the first motor simultaneously drives the front and rear ends of the belt mounting frame to move through the transmission shaft, which is also a commonly used technical means in engineering.

The belt 2 is a synchronous belt with teeth, which can improve the synchronous performance. The main body of the belt mounting frame is divided into upper and lower parts. The upper and lower parts are connected by the first linear slide rail 21, which can slide relatively, and the belt can be adjusted while sliding. shape, the length of the belt 2 on the effective conveying surface can be adjusted by the first linear slide rail 21 like this. The second motor 22 is installed on the upper part of the belt mounting frame, and the upper part of the belt mounting frame is also divided into two parts, the front and rear parts, the upper part can be stretched under the effect of the leading screw, and the matching nut of the leading screw is fixed on the belt. On the upper part of the mounting bracket, the output shaft of the second motor 22 is equipped with a leading screw 23, and the leading screw cooperates with a nut 24. When the second motor is working, due to the function of the screw and the nut, the upper part of the belt mounting frame will be elongated or shortened, and the shape of the corresponding belt will be deformed and supplemented, and the effective load-bearing length of the belt in the length direction can be adjusted, which is very easy Achieved. It is common knowledge that a nut support point is required on the lead screw to achieve this adjustment. Of course, it is not ruled out that there are other structural forms that can adjust the effective carrying length of the belt in the length direction, such as a parallelogram structure.

There is an anti-collision structure at the front end of the belt 2, which includes an anti-collision bar 31, a spring 32 and a travel switch 33, the spring 32 is sleeved on the anti-collision bar, and the anti-collision bar 31 is slidably inserted on the belt mounting frame, Under the impact of external force, the anti-collision bar 31 can be compressed, and the travel switch is installed on the belt mounting frame and cooperates with the anti-collision bar. When the anti-collision bar moves to a predetermined position, the travel switch is triggered, and then the protection program is started.

The lower part of the crossbeam 11 is installed on the base 42 through the wheels 41 and guide rails, and moves sideways under the drive of the horizontally installed oil cylinder 43. Meanwhile, a locking mechanism is provided between the crossbeam and the base. The locking mechanism 44 is arranged on both sides of the front and back, and includes a briquetting block and a hydraulic oil cylinder, which is driven by the hydraulic ram to be pressed against the auxiliary block of the crossbeam to form a locking effect.

The above-mentioned belts 2 are divided into four groups, forming three groups of gaps, and an auxiliary support assembly 5 is provided in the gap between two adjacent belts, which is an independent component. The auxiliary support assembly 5 includes a support plate 51. The brush roller 52 and the lifting cylinder 53, the support plate 51 is installed horizontally, and several brush rollers 52 are installed side by side on the support plate 51 through the round pin 54 along the belt gap direction, and a driving support plate is installed under the support plate to move up and down The lifting cylinder 53 of the lifting cylinder 53 is directly fixed on the side position of the belt installation frame, which neither affects the normal operation of the belt, but also can form an effective lifting point. And the brush roller has two limit positions up and down under the effect of the lifting cylinder. During the upper limit, the highest point of the brush roller is higher than the upper surface of the belt, and during the lower limit, the lowest point of the brush roller is below the belt.

In order to cooperate with the action of the brush roller, some strong magnetic blocks 6 are provided at the front portion of the starting end of the belt, and the strong magnetic blocks are positioned directly below the belt, and the quantity of the strong magnetic blocks can be properly arranged according to actual needs. When the stamped steel parts appear above, the stamped steel parts can be tightly attached to the brush roller or the belt.

The process of conveying stamping parts is as follows:

First, the lifting cylinder in the auxiliary support assembly is driven so that the brush roller is above the belt, waiting for the arrival of the stamping parts; when the stamping parts arrive, the material is first dropped onto the brush roller;

Then, the lifting cylinder shrinks to make the stamping part fall. During the falling process, the stamping part is in contact with the belt. Due to the existence of strong magnets, the stamping part and the belt are closely attached to complete instant acceleration, and together with the belt move forward;

Repeat until the next conveying task.

The above-mentioned embodiments are only descriptions of preferred implementations of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, those skilled in the art may make various modifications and improvements to the present invention. All should expand in the scope of protection as defined in the claims of the present invention.

Claims (6)

1. carry the nothing of stamped workpieces to scratch band conveyor for one kind, comprise rack section and some belts that is set up in parallel, and all belts rotate under the driving of same drive motor, it is characterized in that, be provided with the supplemental support assembly in the gap of two belts adjacent one another are, initiating terminal front portion at described belt is provided with some magnetic blocks, and described magnetic block be positioned at belt under

Described supplemental support assembly comprises stay bearing plate, brush roll and lifts cylinder, some brush roll are arranged on stay bearing plate along the belt gap direction by round pin side by side, and a cylinder of lifting that drives the stay bearing plate upper and lower displacement is installed in stay bearing plate below, and the high point of described brush roll has the effective load-bearing surface of the belt of exceeding and lower than two kinds of end positions of the effective load-bearing surface of belt.

2. a kind of nothing of stamped workpieces of carrying according to claim 1 scratches band conveyor, it is characterized in that, described rack section comprises crossbeam, belt erecting frame, belt pulley and the first motor, described belt erecting frame is arranged on crossbeam by line slideway, and it can be adjusted in the position on crossbeam under the driving of the first motor, described belt forms horizontal U-shaped profile by six belt pulleys on the belt erecting frame, and install one and regulate the leading screw of the effective loaded length of belt on the belt erecting frame, described leading screw moves under the driving of the second motor.

3. a kind of nothing of stamped workpieces of carrying according to claim 2 scratches band conveyor, it is characterized in that, described belt erecting frame comprises fixed mount and movable stand, described fixed mount is L shaped, described movable stand is positioned at the front upper part of fixed mount, and connects by the first rectilinear orbit between two ones, and described the second motor is arranged on fixed mount, the nut that coordinates with described leading screw is arranged on movable stand, drives two ones and relative motion by leading screw.

4. a kind of nothing of stamped workpieces of carrying according to claim 2 scratches band conveyor, it is characterized in that, described crossbeam bottom by wheel and guide rails assembling on pedestal, and carry out shifted laterally under the driving of the oil cylinder of laterally installing, simultaneously, be provided with catch gear between described crossbeam and pedestal.

5. a kind of nothing of stamped workpieces of carrying according to claim 1 and 2 scratches band conveyor, it is characterized in that, front end at described belt has crash structure, comprise crash bar, spring and travel switch, described spring is nested with on crash bar and being plugged on the belt erecting frame of sliding, and described travel switch is arranged on the belt erecting frame and with crash bar and cooperatively interacts.

6. a kind of the carry nothing of stamped workpieces described according to claim l scratches band conveyor, it is characterized in that, described belt is the Timing Belt with tooth.

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