Automatic double-sided polishing tool for strip steel

Abstract

The automatic double-sided polishing tool for the strip steel solves the problems that manual polishing of the strip steel is prone to causing artificial fatigue, low in polishing precision, thinned, deformed and the like, the driving mechanism and the driven mechanism can stretch the strip steel, thermal deformation during polishing is avoided, automatic double-sided polishing of the strip steel is achieved through the front face polishing mechanism and the back face polishing mechanism, and production efficiency is improved. The polishing device comprises a main frame, and the main frame further comprises a driving mechanism, a polishing mechanism, a polishing mechanism and a polishing mechanism. The driven mechanism comprises a driven turntable for winding and placing to-be-polished strip steel; the polishing mechanism is located between the driving mechanism and the driven mechanism and comprises a front face polishing mechanism for polishing the front face of the steel belt and a back face polishing mechanism for polishing the back face of the steel belt.

Description

TECHNICAL FIELD

[0001] The utility model relates to high pressure cracking reactor manufacturing field especially is related to high pressure cracking reactor inner part grid's strip steel processing field, concretely relates to a strip steel double -sided automatic polishing frock. BACKGROUND

[0002] High pressure cracking reactor inner part grid is made by strip steel strip of wide 20mm, thick 1mm, and the strip steel surface needs polishing treatment, and the polishing precision is Ra0.2, and when generally producing, the strip steel is polished by manual polishing, and the strip steel polishing operation needs to polish the front and back respectively.

[0003] If manual polishing is used, on the one hand, manual operation can only polish one side, and the operator holds polishing equipment to polish, and long -time operation not only the labor intensity of personnel is big, and the polishing efficiency is low, on the other hand, the manual polishing is greatly influenced by human factors, and under the condition that the operator is tired for long -time operation, not only the polishing precision is uneven, causes local polishing precision to be unqualified, thickness to be thinned, strip steel to be seriously deformed etc., influences the quality of grid production in the later period, and even causes rework, and the hearing, visual acuity, reaction speed of the operator under the fatigue state are reduced, the operation safety is reduced, the probability of safety accidents is increased, and heat is also generated in the polishing operation process, and the strip steel strip is easily deformed in waves, increases the orthopedic operation, secondary polishing operation, and further reduces the operation efficiency. UTILITARIAN CONTENT

[0004] The utility model provides a strip steel double -sided automatic polishing frock, overcomes the problem of manual polishing of strip steel, and the active mechanism and driven mechanism can stretch the strip steel, avoid the heat deformation when polishing, and the front polishing mechanism and back polishing mechanism realize automatic double -sided polishing of strip steel.

[0005] The utility model is realized through the following technical schemes:

[0006] A strip steel double -sided automatic polishing frock, including main frame, the main frame still includes on,

[0007] Active mechanism, including the active turntable for driving the strip steel after winding polishing;

[0008] Driven mechanism, including the driven turntable for winding the strip steel to be polished;

[0009] Polishing mechanism, between active mechanism and driven mechanism, it includes the front polishing mechanism of polishing the front of steel band and the back polishing mechanism of polishing the back of steel band.

[0010] Further, the waxing device is fixed on the main frame, and the waxing device is located between the driving mechanism and the polishing mechanism.

[0011] The waxing device comprises a waxing shell fixed on the main frame, the side wall of the waxing shell is provided with a guide hole allowing the polished steel belt to pass through, the inner top and bottom of the waxing shell are respectively screw-connected with adjusting bolts, the tail end of the adjusting bolt is fixed with a spring, and the other end of the spring is fixed with a wax block.

[0012] When the polished steel belt passes through the guide hole, the two wax blocks are respectively in contact with the front surface and the back surface of the polished steel belt by rotating the adjusting bolt.

[0013] Further, the two sets of positioning wheel groups are located between the waxing device and the polishing mechanism.

[0014] The positioning wheel group comprises two positioning rollers arranged in an up-down mode, the positioning rollers are rotationally connected to the main frame, and a gap allowing the steel belt to pass through is arranged between the two positioning rollers.

[0015] Further, the top of the main frame is provided with a polishing driving motor,

[0016] The front polishing mechanism and the back polishing mechanism both comprise a polishing wheel, the polishing wheel is rotationally connected to the main frame through a wheel shaft, and the output shaft of the polishing driving motor is respectively in transmission connection with the wheel shaft of the front polishing mechanism and the back polishing mechanism through two sets of chain wheel transmission mechanisms.

[0017] Further, the driving disc and the driven disc are both rotationally installed on the main frame through a rotating shaft, the back surface of the main frame is provided with a transmission motor, and the output shaft of the transmission motor is connected with the rotating shaft of the driving disc.

[0018] The beneficial effects achieved by the utility model compared with the prior art are as follows:

[0019] 1、 the driving mechanism and the driven mechanism can stretch the steel belt, avoid thermal deformation during polishing, the front polishing mechanism and the back polishing mechanism realize automatic double-side polishing of the steel belt, reduce the labor intensity of the operating personnel, improve the polishing efficiency of the steel belt, make the polishing efficiency of the steel belt improve by more than 10 times, and through the research on the polishing process, the polishing precision can reach Ra0.1, the polishing precision is uniform, and the polishing quality is improved.

[0020] The utility model overcomes the problems of manual polishing of the steel belt, such as easy fatigue of workers, low polishing precision, thinning and deformation, etc.

[0021] 2. The positioning wheel assembly includes two positioning rollers distributed vertically, with a gap between the two rollers allowing the steel strip to pass through. The positioning wheel assembly ensures the straightness of the steel strip during polishing, solving the problem of steel strip thinning and deformation that easily occurs during manual polishing.

[0022] 3. The waxing device solved the problem of the strip steel turning black after polishing, thus improving the appearance quality of the polished strip steel. Attached Figure Description

[0023] Figure 1 This is the main view of the double-sided automatic polishing fixture for steel strips described in this utility model.

[0024] Figure 2 This is a rear view of the double-sided automatic polishing fixture for steel strips described in this utility model.

[0025] Figure 3 This is a side view of the double-sided automatic polishing fixture for steel strips described in this utility model.

[0026] Figure 4 This is a schematic diagram of the waxing device described in this utility model.

[0027] In the diagram: 1. Main frame, 2. Driven mechanism, 3. Front polishing mechanism, 4. Active mechanism, 5. Back polishing mechanism, 6. Waxing device, 61. Waxing housing, 62. Adjusting bolt, 63. Spring, 64. Wax block, 65. Guide hole, 7. Positioning wheel set. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0029] In the description of the utility model, it should be understood that the terms "front", "rear", "up", "down", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0030] like Figures 1-4 As shown, this utility model discloses an automatic double-sided polishing fixture for steel strips, which mainly includes a main frame 1, an active mechanism 4, a driven mechanism 2, a polishing mechanism, a waxing device 6, two sets of positioning wheel groups 7, and a sealing PC plate.

[0031] The main frame 1 is used for connecting and supporting the whole polishing device, which is composed of H-shaped steel, steel pipe and flat plate.

[0032] The driven mechanism 2 is composed of a fixed pipe acting as a rotating shaft and a driven disc, the fixed pipe is welded on the main frame 1, and the driven disc is rotatably installed on the fixed pipe. Through the driven mechanism 2, the steel strip to be polished is wound and placed on the driven disc.

[0033] The polishing mechanism is located between the driving mechanism 4 and the driven mechanism 2, and includes a front polishing mechanism 3 for polishing the front surface of the steel strip and a back polishing mechanism 5 for polishing the back surface of the steel strip. A polishing drive motor is installed on the top of the main frame 1, the front polishing mechanism 3 and the back polishing mechanism 5 each include a polishing wheel rotatably connected to the main frame 1 by a wheel shaft, and the output shaft of the polishing drive motor is drivingly connected to the wheel shafts of the front polishing mechanism 3 and the back polishing mechanism 5 through two sets of chain wheel transmission mechanisms. Alternatively, the output shaft of the polishing drive motor can be drivingly connected to the wheel shaft of the front polishing mechanism 3 through a set of chain wheel transmission mechanism, and the back polishing mechanism 5 can be controlled by the polishing drive motor alone to polish, while the back polishing mechanism 5 is fixed on the main frame 1 by a handheld polisher. In this way, the design can realize the requirement of polishing both sides of the steel strip.

[0034] The waxing device 6 is located between the driving mechanism 4 and the polishing mechanism, and the waxing device 6 includes a waxing shell 61 fixed on the main frame 1, a guide hole 65 allowing the polished steel strip to pass through is formed in the side wall of the waxing shell 61, and adjusting bolts 62 are threadedly connected to the top and bottom of the waxing shell 61 respectively, the head ends of the adjusting bolts 62 are located outside the waxing shell, the tail ends of the adjusting bolts 62 are fixed with springs 63, the other ends of the springs 63 are welded with square plates, and the square plates are fixed with wax blocks 64; when the polished steel strip passes through the guide hole 65, the two wax blocks 64 are brought into contact with the front surface and the back surface of the polished steel strip respectively by rotating the adjusting bolts 62.

[0035] Two sets of positioning wheel groups 7 are installed on the main frame 1, so that the waxing device 6 and the polishing mechanism are located between the two sets of positioning wheel groups 7, each set of positioning wheel group 7 includes two positioning rollers distributed above and below, the positioning rollers are rotatably connected to the main frame 1 by positioning shafts, and a gap allowing the steel strip to pass through is provided between the two positioning rollers.

[0036] The main frame 1 is sealed by a sealed PC board, which is used to seal the whole working area to avoid the pollution of polishing dust to the workshop, and the dust is absorbed by the dust removal equipment through the dust discharge port above the driven mechanism 2.

[0037] The strip steel double-face automatic polishing method step of the strip steel double-face automatic polishing tooling has the following steps:

[0038] (1) the disc-shaped strip steel to be polished is mounted on the rotating disc of the driven mechanism 2, and the strip steel should not be loosened during the mounting process, otherwise the polishing quality will be affected and deformation will occur; the outer diameter of the disc-shaped strip steel disc is 600-700 mm, and the inner diameter is 221-225 mm, so that the relative fixation of the strip steel disc is ensured;

[0039] (2) one end of the strip steel is sequentially threaded through the positioning wheel set 7, the front polishing mechanism 3, the back polishing mechanism 5, the waxing device 6 and the positioning wheel set 7;

[0040] (3) the strip steel is spot-welded and fixed on the rotating disc of the driving mechanism 4, and the welding spot is polished and smoothed to avoid scratching the strip steel; the fixed welding spot is welded by argon arc welding, the length of the welding spot is 10-15 mm, the thickness does not exceed the thickness of the strip steel, and the width is 8-10 mm; after welding, the polishing is ground to be smoothly transitioned to the driving rotating disc.

[0041] (4) the driving mechanism 4 is started, the rotating speed is adjusted to 20-30 r / min, and the strip steel to be polished is moved and coiled on the rotating disc of the driving mechanism 4;

[0042] (5) the dust removal equipment is started at the same time, the dust generated during polishing is absorbed by the dust removal equipment through the dust discharge port above the driven mechanism 2, the dust pollution is reduced, and the quality of the working environment is improved;

[0043] (6) during the movement of the strip steel to be polished, the front polishing mechanism 3 and the back polishing mechanism 5 are passed through respectively, the front and back surfaces of the strip steel are polished at the same time, and the strip steel after polishing is waxed by the waxing device 6;

[0044] (7) after the first polishing is completed, the polishing wheels of the front polishing mechanism 3 and the back polishing mechanism 5 with corresponding mesh numbers are replaced according to the polishing process, and then the second polishing operation is performed according to the steps (1)-(6), so that the polishing progress of the strip steel reaches Ra0.1, that is, the overall polishing operation of the strip steel is completed, and the polishing precision reaches the process requirement.

[0045] The driving mechanism 4 and the driven mechanism 2 can stretch the strip steel, avoid thermal deformation during polishing, realize automatic double-face polishing of the strip steel by the front polishing mechanism 3 and the back polishing mechanism 5, reduce the labor intensity of the operator, improve the polishing efficiency of the strip steel, and make the polishing efficiency of the strip steel increase by more than 10 times; through the research on the polishing process, the polishing precision can reach Ra0.1, the polishing precision is uniform, and the polishing quality is improved.

[0046] Example 1:

[0047] With the material S30408, the specification is 1 × 20 mm strip steel polishing as an example, the disc of the strip steel is installed on the driven mechanism 2 driven turntable, and then the strip steel is sequentially passed through the positioning wheel group 7, the front polishing mechanism 3, the back polishing mechanism 5, the waxing structure 6, the positioning wheel group 7, and the strip steel is spot welded and fixed on the driving mechanism 4 driving turntable, and the welding point is polished and smoothed to avoid scratching the strip steel. Then start the driving motor of the driving mechanism 4, drive the strip steel to move and coil on the driving turntable of the driving mechanism 4. During the movement of the strip steel, the strip steel is polished by the polishing belt of the front polishing mechanism 3 and the polishing wheel of the back polishing mechanism 3, realizing the simultaneous polishing of the front and back of the strip steel. After polishing, the thickness of the strip steel is 0.95-0.99mm, and the polishing precision is Ra0.1, which meets the use requirements and has no deformation, and can directly proceed to the next operation.

[0048] Example 2:

[0049] With the material S30408, the specification is 1 × 20 mm strip steel polishing as an example, the disc of the strip steel is installed on the driven mechanism 2 driven turntable, and then the strip steel is sequentially passed through the positioning wheel group 7, the front polishing mechanism 3, the back polishing mechanism 5, the waxing structure 6, the positioning wheel group 7, and the strip steel is spot welded and fixed on the driving mechanism 4 driving turntable, and the welding point is polished and smoothed to avoid scratching the strip steel. Then start the driving motor of the driving mechanism 4, drive the strip steel to move and coil on the driving turntable of the driving mechanism 4. During the movement of the strip steel, the strip steel is polished by the polishing belt of the front polishing mechanism 3 and the polishing wheel of the back polishing mechanism 3, realizing the simultaneous polishing of the front and back of the strip steel. After polishing, the thickness of the strip steel is 0.95-0.99mm, and the polishing precision is Ra0.1, which meets the use requirements and has no deformation, and can directly proceed to the next operation.

[0050] And using manual polishing, with the material S30408, the specification is 1 × 20 mm strip steel, first polish one side, then polish the other side, through the test, at least 3 times of polishing is needed, the polishing precision can reach Ra0.1, through the measurement, there is local polishing precision of Ra0.2, Ra0.4, which cannot meet the polishing requirements, causing local rework, and manual polishing causes the strip steel to produce serious wave deformation, which cannot directly proceed to the next operation, and needs to be corrected before use, further affecting the production efficiency.

[0051] This embodiment has been applied in the grid production of nylon 6 project equipment high pressure cracking reactor, the equipment has been running for nearly a year, and the use effect is good. When overhauling, the size of the strip steel is measured, the thickness is 0.95-0.99mm, the polishing precision is Ra0.1, and there is no obvious change, which ensures the good operation of the equipment.

Claims

1. A double-sided automatic polishing fixture for steel strips, comprising a main frame, characterized in that, The main frame also includes, The active mechanism includes an active turntable for driving the wound polished strip. Driven mechanism, including a driven turntable for winding and placing the strip steel to be polished; The polishing mechanism, located between the active mechanism and the driven mechanism, includes a front polishing mechanism for polishing the front side of the steel strip and a back polishing mechanism for polishing the back side of the steel strip. It also includes a waxing device fixed to the main frame, the waxing device being located between the active mechanism and the polishing mechanism; The waxing device includes a waxing housing fixed to the main frame. The side wall of the waxing housing is provided with a guide hole that allows the steel strip to pass through after polishing. Adjusting bolts are threaded to the top and bottom of the waxing housing, respectively. A spring is fixed to the tail end of the adjusting bolt, and a wax block is fixed to the other end of the spring. After the polished steel strip passes through the guide hole, the two wax blocks are brought into contact with the front and back sides of the polished steel strip by rotating the adjusting bolt.

2. The automatic double-sided polishing fixture for strip steel according to claim 1, characterized in that, It also includes two sets of positioning wheels, with the waxing device and polishing mechanism located between the two sets of positioning wheels; The positioning wheel assembly includes two positioning rollers distributed vertically, which are rotatably connected to the main frame. A gap is provided between the two positioning rollers to allow the steel strip to pass through.

3. The automatic double-sided polishing fixture for strip steel according to claim 1, characterized in that, A polishing drive motor is provided at the top of the main frame. Both the front polishing mechanism and the back polishing mechanism include polishing wheels, which are rotatably connected to the main frame via axles. The output shaft of the polishing drive motor is connected to the axles of the front polishing mechanism and the back polishing mechanism respectively via two sets of sprocket transmission mechanisms.

4. The automatic double-sided polishing fixture for strip steel according to any one of claims 1-3, characterized in that, Both the active and driven turntables are rotatably mounted on the main frame via a rotating shaft. A drive motor is mounted on the back of the main frame, and the output shaft of the drive motor is connected to the rotating shaft of the active turntable.

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