CN217704680U

CN217704680U - Can cut off structure that tip warp after stretch bending

Info

Publication number: CN217704680U
Application number: CN202220727716.1U
Authority: CN
Inventors: 杨富杰; 章义; 钱华敏
Original assignee: Ningbo Huina Machinery Co ltd
Current assignee: Ningbo Huina Machinery Co ltd
Priority date: 2022-03-31
Filing date: 2022-03-31
Publication date: 2022-11-01
Anticipated expiration: 2032-03-31

Abstract

The utility model relates to a stretch bending and excision technical field. The utility model provides a can excise structure that tip warp after bending, includes the base, the base on erect and install the stretch bending mould, one side of stretch bending mould is open side, is equipped with the stretch bending material in the stretch bending mould, the both ends of stretch bending mould all are equipped with the excision structure, the excision structure including excising the base, seted up curved rotation groove on the excision base, rotate on the rotation groove and be equipped with the excision frame, be equipped with the fixed block that can upwards overturn on the excision frame, be equipped with the cutter on one side of fixed block. The utility model provides a structure which can cut out the deformation of the end part after stretch bending, can cut out the deformation section after stretch bending, can adjust the cutting-out angle according to the actual situation, and can effectively reduce the deformation condition when the material is cut out; the technical problems that the structure and the function of a die are single, the cutting effect of the end part of a material after stretch bending is poor, and the process is complex in the prior art are solved.

Description

Can cut off structure that tip warp after stretch bending

Technical Field

The utility model relates to a stretch bending and excision technical field especially relate to a structure that can cut out tip deformation after stretch bending.

Background

The stretch bender levels a strip according to the elastoplasticity extension theory of the material, and the basic principle is as follows: under the tension applied by the tension roller group, the strip to be leveled continuously passes through a plurality of groups of small-diameter bending rollers which are alternately arranged up and down, and under the combined action of stretching and bending, plastic extension is generated along the length direction, so that the length of each longitudinal fiber of the strip tends to be consistent, and the flatness of the strip is improved. Many situations need to stretch and bend materials through a stretch bender in production, but the stretch bender needs to be matched with a specific mould for use, the existing mould matched with the stretch bender has a single function, two ends of the materials subjected to stretch bending are clamped by the stretch bender to deform, and the deformation section is cut off and is transferred to other procedures to be carried out, so that the working efficiency is reduced, and the production cost is indirectly increased.

As in application No.: CN201720104041.4, chinese patent with application date of 2017, 20/01: a bending die for a stretch bender comprises a bottom plate, wherein two groups of positioning devices are symmetrically arranged on the bottom plate, and each positioning device comprises a bending module for embedding a water cut, a clamping block moving towards or away from the bending module and used for clamping the water cut, and a clamping cylinder driving the clamping block to move; a sawing gap is formed between the two groups of positioning devices, and a sawing assembly for penetrating the sawing gap is arranged between the two groups of positioning devices on the bottom plate. This utility model provides a mould only can assist the stretch bender to accomplish the function of stretch bending, and the both ends of material after the stretch bender stretch bending can produce and warp, if want to cut off both ends then need be with the help of other processes, and the function is single, and can't satisfy the actual demand, has increased production time, has reduced production efficiency, consequently has the modified necessity.

SUMMERY OF THE UTILITY MODEL

The utility model provides a structure capable of cutting out end deformation after stretch bending, which can cut out a deformation section after stretch bending, adjust the cutting-out angle according to the actual condition and effectively reduce the deformation condition when cutting out materials; the technical problems that the structure and the function of a die are single, the cutting effect of the end part of a material after stretch bending is poor, and the process is complex in the prior art are solved.

The above technical problem of the utility model is solved through following technical scheme: the utility model provides a can excise structure that tip warp after bending, includes the base, the base on erect and install the stretch bending mould, one side of stretch bending mould is open side, is equipped with the stretch bending material in the stretch bending mould, the both ends of stretch bending mould all are equipped with the excision structure, the excision structure including excising the base, seted up curved rotation groove on the excision base, rotate on the rotation groove and be equipped with the excision frame, be equipped with the fixed block that can upwards overturn on the excision frame, be equipped with the cutter on one side of fixed block. The stretch bending method comprises the steps that stretch bending materials are placed into a stretch bending die from an open side, then the stretch bending materials are clamped by a three-dimensional stretch bending machine to be subjected to stretch bending, the stretch bending materials are gradually attached to the stretch bending die and are gradually formed, the stretch bending materials at the positions clamped by the three-dimensional stretch bending machine deform and need to be cut off, the position of a cutting base is fixed to guarantee the cutting of a deformation section of the stretch bending materials, the deformation position of the stretch bending materials is not fixed, but the cutter is perpendicular to the stretch bending material method as much as possible during cutting off, the angle of a cutting frame is adjusted according to actual conditions, the angle of the cutting frame can be adjusted through a rotating groove, the cutter is guaranteed to be perpendicular to the stretch bending material method, then the fixing block turns downwards, and the fixing block drives the cutter to rotate to gradually cut off the deformation section of the stretch bending materials.

Preferably, the cutting structure further comprises a pressure plate between the fixing block and the stretch bending die, the pressure plate is fixed on the fixing block, a positioning plate is arranged on one side, opposite to the cutter, of the fixing block, and the positioning plate is fixedly connected with the pressure plate. At the in-process of fixed block upset downwards, press the flitch to push down the outside of stretch bending material, play the effect of centre gripping stretch bending material with the cooperation of stretch bending mould, avoid stretch bending material to take place the condition of displacement or deformation when the excision, the locating plate the effect lies in to pressing the location of flitch, presses flitch and locating plate joint fixed, avoids at the during operation because the influence of vibrations or outside power leads to pressing the flitch skew, and then with the cutter collision condition of influence work.

Preferably, the rotating groove is an arc-shaped groove with two symmetrically distributed open ends opposite to each other. The rotating grooves are arc-shaped grooves with opposite open ends, the open ends of the two arc-shaped grooves on the same side are opposite, namely the two rotating grooves form a shape similar to a bracket, so that the cutting frame can rotate in situ when the angle is changed, displacement is not generated, and the cutting knife can be conveniently controlled to be vertical to a stretch bending material method.

Preferably, the number of the rotation grooves in each cutting structure is 4. 2 relative rotation grooves are formed in the same side of each cutting base, 2 rotation grooves are symmetrically formed in the other side of each cutting base, and the cutting frame is installed between the rotation grooves in two different sides.

Preferably, the width of the cutting knife is gradually reduced from the opening side to the closing side of the stretch bending die, and the maximum width of the cutting knife is larger than the width of the stretch bending material. The width of the cutter is gradually reduced from the outer side to the inner side to form a sharp edge, the sharp edge of the cutter can cut the stretch-bending material open when the fixing block drives the cutter to overturn downwards, then the deformation section of the stretch-bending material is gradually cut off along with the increase of the width of the cutter, and the deformation of the stretch-bending material in the cutting process can be reduced as much as possible by the cutter.

Preferably, the fixed block is driven by a motor. The drive mode of fixed block can be drive modes such as hydro-cylinder or cylinder, the utility model discloses use the motor to explain as the example, the motor drive fixed block upwards or overturn downwards, the fixed block upwards overturns and is convenient for put into and take out the stretch bending material, and the fixed block overturns downwards and amputates the deformation section of stretch bending material.

Therefore, the utility model discloses a structure that can cut off tip after stretch bending warp possesses following advantage: the stretch bending die can cut off the deformation sections at two ends of the material after stretch bending, effectively reduces the deformation of the material during cutting, has stable cutting effect, does not need to take out the material for other process operations, and has high processing efficiency.

Drawings

Fig. 1 is a schematic three-dimensional structure diagram of a structure capable of cutting off end deformation after stretch bending.

Fig. 2 is a schematic top view of the structure of fig. 1.

Fig. 3 is a perspective view of the cut-out structure of fig. 1.

Fig. 4 is a schematic top view of the structure of fig. 3.

Fig. 5 is a left side view of the structure of fig. 3.

Fig. 6 is an enlarged view at a in fig. 2.

In the figure, a base 1, a stretch bending die 2, stretch bending materials 3, a discharging frame 4, a cylinder 5, a gas rod 6, a cutting structure 7, a cutting base 8, a rotating groove 9, a cutting frame 10, a motor 11, a fixing block 12, a cutter 13, a pressure plate 14 and a positioning plate 15.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example (b): as shown in fig. 1, 2, 3, 4, 5 and 6, a structure capable of cutting end deformation after stretch bending comprises a base 1, a stretch bending die 2 is erected on the base 1, the outer side of the stretch bending die 2 is an open side, the inner side of the stretch bending die 2 is a closed side, stretch bending materials 3 are arranged in the stretch bending die 2, a discharging frame 4 is arranged at the center of the inner side of the stretch bending die 2, the discharging frame 4 is fixedly arranged on the base 1, an air cylinder 5 is fixedly arranged on the discharging frame 4, an air rod 6 is slidably arranged in the air cylinder 5, the free end of the air rod 6 extends into the stretch bending die 2, the air rod 6 can push out the stretch bending materials 3, cutting structures 7 are arranged at both ends of the stretch bending die 2, each cutting structure 7 comprises a cutting base 8, each cutting base 8 is located at the inner side of the stretch bending die 2, each cutting base 8 is arranged on the base 1 through a bolt, and the position of each cutting base 8 can be adjusted, 4 curved rotating grooves 9 have been seted up to the symmetry on

excision base

8, 2 rotating grooves 9's of homonymy open end is relative, rotating groove 9 is last to rotate to install and to amputate frame 10, fixed mounting has motor 11 on the excision frame 10, motor 11 is located stretch bending die 2's inboard, still install fixed block 12 on the excision frame 10, fixed block 12 is located stretch bending die 2's the outside, fixed block 12 rotates to be installed on excision frame 10, fixed block 12 can upwards overturn through the drive of motor 11, fixed mounting has cutter 13 on the fixed block 12 lateral wall, the width of cutter 13 inwards reduces gradually, form a sharp sword, fixed mounting has pressure flitch 14 on the face that fixed block 12 and stretch bending die 2 contacted, fixed mounting has locating plate 15 on the relative one side of cutter 13 on fixed block 12, locating plate 15 is fixed with pressure flitch 14 joint.

In an initial state, the motors 11 at the two ends of the stretch bending die 2 drive the fixed block 12 to rotate upwards, the fixed block 12 drives the cutter 13, the material pressing plate 14 and the positioning plate 15 to move upwards, then the middle part of the linear stretch bending material 3 is clamped into the stretch bending die 2, the two ends of the stretch bending material 3 are clamped by the stretch bending machine, then the stretch bending machine bends the stretch bending material 3 into the shape of the stretch bending die 2 until the stretch bending material 3 is completely attached to the stretch bending die 2, but the two ends of the stretch bending material 3 deform due to the clamping of the stretch bending machine, so that the two ends of the stretch bending material 3 need to be cut off, the position of the cutting base 8 is adjusted, the deformed material can be cut off by the cutter 13, then the angle of the cutting frame 10 is adjusted according to the angle of the stretch bending material 3, the angle of the cutting frame 10 can be adjusted by the rotating groove 9, the cutter 13 is ensured to be perpendicular to the method of the stretch bending material 3, the secondary deformation of the stretch bending material 3 in the cutting process is avoided, then the motor 11 at the two ends of the stretch bending die 2 drives the fixing block 12 to rotate downwards, the pressing plate 14 presses the outer side of the stretch bending material 3 in the downward rotation process of the fixing block 12, the displacement or deformation of the stretch bending material 3 in the cutting process is avoided, the positioning plate 15 is used for positioning the position of the pressing plate 14, the situation that the pressing plate 14 deflects due to the influence of vibration or lateral force factors during working and further influences the working condition of the cutter 13 is avoided, the sharp edge of the cutter 13 cuts the stretch bending material 3 along with the overturning of the fixing block 12, then the deformed section of the stretch bending material 3 is completely cut along with the increasing of the width of the cutter 13, the motor 11 drives the fixing block 12 to overturn upwards to return to the initial position after cutting is finished, the air cylinder 5 drives the air rod 6 to push outwards, and the air rod 6 pushes out the stretch bending material 3, facilitating removal of the stretch-bent material 3.

Claims

1. The utility model provides a can cut off structure that tip warp after stretch bending, includes the base, its characterized in that: the base on erect and install the stretch bending mould, one side of stretch bending mould is open side, is equipped with the stretch bending material in the stretch bending mould, the both ends of stretch bending mould all are equipped with the excision structure, the excision structure including excising the base, seted up curved rotation groove on the excision base, rotate on the rotation groove and be equipped with the excision frame, be equipped with the fixed block that can upwards overturn on the excision frame, be equipped with the cutter on one side of fixed block.

2. The stretch-bendable removable end deformation structure of claim 1, wherein: the cutting structure further comprises a material pressing plate between the fixing block and the stretch bending die, the material pressing plate is fixed on the fixing block, a positioning plate is arranged on one side, opposite to the cutter, of the fixing block, and the positioning plate is fixedly connected with the material pressing plate.

3. The stretch-bendable removable end deformation structure of claim 1, wherein: the middle part of stretch bending mould be equipped with the play work or material rest, the play work or material rest is located the confined side of stretch bending mould, is equipped with the cylinder on the play work or material rest, is equipped with the gas pole in the cylinder, the gas pole extends to and pushes out stretch bending material in the stretch bending mould.

4. The stretch-bendable removable end deformation structure of claim 1, wherein: the rotating groove is an arc-shaped groove with two symmetrically distributed open ends opposite to each other.

5. A stretch-cuttable end deformation structure as claimed in claim 1 or 2, wherein: the number of the rotating grooves in each cutting structure is 4.

6. A stretch-cuttable end deformation structure as claimed in claim 1 or 2, wherein: the width of the cutting knife is gradually reduced from the opening side to the closing side of the stretch bending die, and the maximum width of the cutting knife is larger than the width of the stretch bending material.

7. A stretch-cuttable end deformation structure as claimed in claim 1 or 2, wherein: the fixed block is driven by a motor.