Steel belt bending machine for corrugated pipe production

Abstract

The utility model relates to the technical field of corrugated pipe manufacturing, and particularly discloses a steel belt bending machine for corrugated pipe production, which comprises a shell, the shell is divided into an upper shell and a lower shell which can be separated, a convex roller mechanism is mounted in the upper shell, a groove mechanism is mounted in the lower shell, the convex roller mechanism is opposite to the groove mechanism, and the convex roller mechanism is connected with the lower shell. The top end of the air cylinder is fixedly connected with the bottom end of the upper shell. The shell is divided into the upper shell and the lower shell which can be separated, the convex roller mechanism is mounted in the upper shell, and the groove mechanism is mounted in the lower shell, so that the convex roller mechanism and the groove mechanism can be separated, and a gap formed between the convex roller mechanism and the groove mechanism can be changed according to the thickness of an extruded steel belt; and the device can be matched with and extrude steel belts with different thicknesses, the application range is wide, and the extrusion effect is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of bellows manufacturing, in particular to a steel strip bending machine for bellows production. Background Art

[0002] Bellows are widely used in petrochemical, instrumentation, aerospace, chemical, electric power, cement, metallurgy and other industries. Bellows contain protruding corrugated parts. In order to improve the strength of the bellows, steel-plastic materials are used to make steel-plastic bellows. Steel-plastic bellows are added with steel belts in the plastic layer of the bellows. The steel belts need to be bent to form a protruding "V"-shaped tip to make the bellows form a protruding part and strengthen the ring stiffness of the bellows.

[0003] The existing steel strip forming process is to first use a punching machine to extrude the concave surface, and then perform a subsequent edge correction method. This method goes through two processes, and the second process correction method cannot accurately correct the bending size of the steel strip, resulting in low yield, and the two forming processes take a long time, resulting in low efficiency. In order to improve the efficiency of steel strip bending and forming and improve the accurate correction of the bending size of the steel strip, the Chinese utility model patent with the publication number "CN217617077U" discloses a steel strip bending machine, which passes the straight steel strip through the gap between the convex roller and the groove of the extrusion mechanism, and the flat steel strip is rolled and extruded by the convex roller so that the steel strip forms a V-shaped pointed groove. The groove wheel mode is set in three groups, the first group of wheel grooves performs preliminary extrusion on the steel strip, the second group of wheel grooves is processed again, and the third group of groove wheels extrudes the V-shaped groove of the steel strip again. From the third group of groove wheels to the first group of groove wheels, the protruding part of the convex roller gradually increases, and the extrusion of the groove of the steel strip gradually deepens, thereby improving the extrusion efficiency and avoiding multiple extrusions using a punching machine. Since the convex roller and the groove are fixedly arranged in the shell, the gap spacing formed between the convex roller and the groove is fixed and cannot be adapted to the extrusion of steel strips of different thicknesses. When it is necessary to extrude very thick or very thin steel strips, it is difficult for a very thick steel strip to pass through the gap between the convex roller and the groove. A very thin steel strip cannot fit tightly into the gap when it passes through the gap between the convex roller and the groove, resulting in unsatisfactory bending and forming effects. Utility Model Content

[0004] The utility model aims to provide a steel strip bending machine for producing corrugated pipes, so as to solve the problem that the gap spacing formed between the convex roller and the groove of the existing steel strip bending machine is fixed.

[0005] In order to solve the above problems, the technical solutions provided are as follows:

[0006] A steel strip bending machine for corrugated pipe production includes a shell, which is divided into a separable upper shell and a lower shell. A convex roller mechanism is installed in the upper shell, and a groove mechanism is installed in the lower shell. The convex roller mechanism is opposite to the groove mechanism. A cylinder is fixedly arranged on the lower shell, and the top end of the cylinder is fixedly connected to the bottom end of the upper shell.

[0007] The basic principle of the above technical solution is: the upper shell is lifted up and moved upward by the cylinder, so that the upper shell is separated from the lower shell, and the upper shell moves upward together with the convex roller mechanism, so that the gap between the convex roller mechanism and the groove mechanism can be changed according to the thickness of the steel strip to be extruded.

[0008] The beneficial effect of the above technical solution is that: compared with the existing convex roller and groove which are fixedly arranged in the shell and the gap spacing formed between the convex roller and the groove is fixed, the technical solution divides the shell into separable upper and lower shells, the convex roller mechanism is installed in the upper shell, and the groove mechanism is installed in the lower shell, so that the convex roller mechanism and the groove mechanism can be separated, and then the gap formed between the convex roller mechanism and the groove mechanism can be changed according to the thickness of the extruded steel strip, so that this device can be adapted to extrude steel strips of different thicknesses, which not only has a wide range of applications, but also does not affect the extrusion effect.

[0009] Furthermore, a limit block is fixedly connected to the upper outer portion of the lower shell, and a vertically arranged slide groove is provided on the limit block. A protruding slider is provided on the outer side of the upper shell, and the slider is slidably connected in the slide groove. When the cylinder lifts the upper shell and moves it upward, the slider on the upper shell slides in the slide groove of the limit block, limiting that the convex roller mechanism in the upper shell is still opposite to the groove mechanism after the upper shell moves upward, thereby preventing the convex roller mechanism and the groove mechanism from being misaligned.

[0010] Furthermore, the side of the slide groove is provided with scale lines, through which the sliding height of the slider in the slide groove can be clearly seen, so that the upward movement height of the upper shell can be known, and the size of the gap change between the convex roller mechanism and the groove mechanism can be known.

[0011] Furthermore, a pointer pointing to the scale line is provided at the center of the end of the slider, so that reading is more convenient through the pointer pointing.

[0012] Furthermore, a controller is provided on the housing, and the controller is electrically connected to the cylinder. The telescopic speed and telescopic height of the cylinder are controlled by the controller.

[0013] Furthermore, symmetrically, mounting grooves are provided on both sides of the upper end of the lower shell, and the cylinder body of the cylinder is fixedly mounted in the mounting grooves by bolts, and the top end of the telescopic tube of the cylinder is fixedly supported on the bottom end of the upper shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of an embodiment of the utility model;

[0015] Figure 2 It is a schematic diagram of the front view structure of the limit block.

[0016] The reference numerals in the drawings of the specification include: upper shell 1, lower shell 2, convex roller mechanism 3, groove mechanism 4, cylinder 5, limit block 6, slide groove 7, slider 8, pointer 9, controller 10, steel belt A. DETAILED DESCRIPTION

[0017] The following is further described in detail through specific implementation methods:

[0018] The embodiment is basically as shown in the attached Figure 1-2 As shown:

[0019] A steel strip bending machine for corrugated pipe production, such as Figure 1 As shown, the housing comprises a shell, which is divided into a separable upper shell 1 and a lower shell 2. A convex roller mechanism 3 is installed in the upper shell 1, and a groove mechanism 4 is installed in the lower shell 2. The installation method of the convex roller mechanism 3 and the groove mechanism 4 in the housing is described in detail in the Chinese utility model patent application document with the publication number "CN217617077U", and no further description is given here. The convex roller mechanism 3 is opposite to the groove mechanism 4. The left and right sides of the upper end of the lower shell 2 are symmetrically provided with placement grooves, and a cylinder 5 is fixedly placed in the placement groove by bolts. The cylinder body of the cylinder 5 is in the placement groove, and the top end of the telescopic cylinder of the cylinder 5 is fixedly supported on the bottom end of the upper shell 1. Limiting blocks 6 are welded on both sides of the upper outer side of the lower shell 2, and a vertically arranged slide groove 7 is provided on the limiting block 6. The surface of the limiting block 6 is provided with a scale line on the side of the slide groove 7. A slider 8 protruding out of the upper shell 1 is provided on the outer side of the upper shell 1. The slider 8 is slidably connected in the slide groove 7, and a pointer 9 pointing to the scale line is threadedly connected at the end of the slider 8. A controller 10 is provided on the side of the upper shell 1 , and the controller 10 is electrically connected to the cylinder 5 .

[0020] The specific implementation process is as follows:

[0021] The cylinder 5 is started by the controller 10. The cylinder 5 can be extended and retracted to lift the upper shell 1 and move it up and down, so that the convex roller mechanism 3 installed in the upper shell 1 can move up and down. The convex roller mechanism 3 can change the gap spacing between it and the groove mechanism 4 when it moves up and down to adapt to the extrusion of steel strips A of different thicknesses. When the upper shell 1 moves up and down, the slider 8 thereon slides in the slide groove 7 of the limit block 6, limiting the upper shell 1 to move straight up and down, avoiding the misalignment of the convex roller mechanism 3 and the groove mechanism 4. The slider 8 slides up and down, and according to the scale line pointed by the pointer 9, the moving distance of the convex roller mechanism 3 can be accurately read, thereby knowing the distance of the gap spacing between the convex roller mechanism 3 and the groove mechanism 4. This device divides the shell into separable upper and lower shells 2, a convex roller mechanism 3 is installed in the upper shell 1, and a groove mechanism 4 is installed in the lower shell 2, so that the convex roller mechanism 3 and the groove mechanism 4 can be separated, and then the gap formed between the convex roller mechanism 3 and the groove mechanism 4 can be changed according to the thickness of the extruded steel strip A, so that the device can be adapted to extrude steel strips A of different thicknesses, which not only has a wide range of applications, but also does not affect the extrusion effect.

[0022] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A steel strip bending machine for corrugated pipe production, comprising a housing, characterized in that: The shell is divided into a separable upper shell and a lower shell. A convex roller mechanism is installed in the upper shell, and a groove mechanism is installed in the lower shell. The convex roller mechanism is opposite to the groove mechanism. A cylinder is fixedly arranged on the lower shell, and the top end of the cylinder is fixedly connected to the bottom end of the upper shell.

2. A steel strip bending machine for corrugated pipe production according to claim 1, characterized in that: A limiting block is fixedly connected to the upper outer portion of the lower shell body, a vertically arranged sliding groove is provided on the limiting block, and a protruding sliding block is provided on the outer side of the upper shell body, and the sliding block is slidably connected in the sliding groove.

3. A steel strip bending machine for corrugated pipe production according to claim 2, characterized in that: The side surface of the slide groove is provided with scale lines.

4. A steel strip bending machine for corrugated pipe production according to claim 3, characterized in that: A pointer pointing to the scale line is arranged at the center of the end of the sliding block.

5. The steel strip bending machine for corrugated pipe production according to claim 1, characterized in that: The shell is provided with a controller, and the controller is electrically connected with the cylinder.

6. The steel strip bending machine for corrugated pipe production according to claim 1, characterized in that: The upper end of the lower shell is symmetrically provided with mounting grooves on both sides, the cylinder body of the cylinder is fixedly mounted in the mounting grooves by bolts, and the top end of the telescopic tube of the cylinder is fixedly supported on the bottom end of the upper shell.

Images