CN105127328A - Automatic needle bending machine for tube welded with columnar needles - Google Patents

Abstract

The needle tube automatic needle moving machine for bending needle tube columnar needles includes a frame, wherein a support mechanism is installed on the frame, and a looper linkage mechanism is installed on the longitudinal side of the support mechanism; the looper linkage mechanism includes Fix the needle positioning plate for the radial cylindrical needle on the outer circumference of the needle tube. A connecting rod is arranged above the needle positioning plate. A needle moving shaft is arranged at the end close to the columnar needle. The upper end of the connecting rod is fixed by a bearing and a bracket. Below the needle positioning plate Install claws, the outer end of the claws is connected with the first power device, the first power device can drive the claws to clamp the columnar needle, and the second power device is arranged above the needle moving shaft, and the second power device is connected with the needle moving shaft , and can drive the needle moving shaft to complete the downward bending of the columnar needle. It is a special equipment for bending needle-shaped cylindrical needles. It can completely replace manual labor and has a high degree of automation, thereby improving production efficiency, saving labor resources, reducing costs, and has many advantages such as convenient operation, precise control, stable needle movement, and high yield. item advantage.

Description

Needle tube automatic needle moving machine

technical field

The invention relates to a bending tool, in particular to an automatic needle-moving machine for needle-shaped tubes used for bending cylindrical needles of needle-shaped tubes.

Background technique

The needle-shaped tube heat exchange tube group made of needle-shaped tubes has high heat transfer efficiency, and is especially suitable for compact waste heat boilers, fuel oil, gas-fired boilers and oil heaters. Welded on the surface of the heat exchange tube, viewed from the same cross-section of the needle tube, multiple cylindrical needles are equally arranged on the outer circumference of the needle tube; Arranged in multiple rows, wherein the length, diameter, spacing and inclination of the columnar needles can be flexibly set as required. It has the advantages of good heat transfer performance, small size, light weight, good self-cleaning and wear resistance, especially for the heat exchange of oil medium, which has irreplaceable advantages.

In the production and use of needle tube heat exchange tube groups, in order to make the structural arrangement more compact or to arrange more heat exchange tubes to meet the requirements of heat exchange area, it is necessary to arrange the adjacent columnar needles between the longitudinal heat exchange tubes The bending is transverse, see Fig. 11 for the structure diagram of the needle-shaped tube in the prior art, and Fig. 12 for the structure diagram of the columnar needle in Fig. 11 after bending. At present, the bending of the columnar needles of the needle-shaped tube can only be done manually, because the arrangement of the columnar needles in the axial direction of the same needle-shaped tube is relatively dense. In order to ensure the yield and avoid damage, the labor of the workers is greatly increased. Intensity, low efficiency, time-consuming and labor-intensive, increased cost.

Chinese patent (application number 201210557926.1, authorized announcement date January 21, 2015) discloses "a pneumatic pin bending machine", including a worktable, two cylinders, a cylinder fixing plate, a thimble fixing plate, and a slideway fixing frame , Slideway support frame, thimble push plate, push rod, thimble plate, thimble press plate, thimble push plate slider, sliding cover, switch lever, looper push plate, looper cover plate and skeleton positioning plate. The invention uses compressed air as the power to push the cylinder to run, realizes the smooth insertion of the lead pin into the frame lead position, and bends the side of the frame at 100 degrees, thus realizing the whole process of automatic pin top bending in the production of transformers. It solves the problem of bending the needle by using the looper push plate 14 to slide on the slideway 15-1 on the bottom surface of the looper cover plate 15. When guiding the needle, the operation of bending the guiding needle can be completed (the guiding needle is bent at 100 degrees on the side of the skeleton). The defects of this invention include: first, the bending angle of the guide pins cannot be well controlled, that is, bending at any angle cannot be realized; The bending cannot be applied to the bending of multiple rows of guide pins on the same surface; the third is that there is no fixing and protective device for the starting part of the guide pin bending and the bending process, which may easily cause the guide pins to break or fall off. Therefore, The yield rate is poor; the fourth is that for the bending of the columnar needles arranged in equal parts on the circumference of the needle tube, the positioning and fixing of the needle tube and the columnar needles cannot be realized, nor can it be applied to the bending problem of the columnar needles.

Contents of the invention

The object of the present invention is to provide a needle-shaped tube automatic needle-moving machine with high degree of automation and high needle-moving quality, which is used to solve the problems in the prior art.

In order to realize the purpose of the present invention, adopt following technical scheme:

The needle tube automatic needle moving machine for bending the needle tube cylindrical needle includes a frame on which a support mechanism for placing the needle tube is installed, and a looper linkage mechanism is installed on the longitudinal side of the support mechanism; The looper link mechanism includes a needle positioning plate. The needle positioning plate is provided with a pin shaft near the inner end of the needle tube. A needle moving shaft is arranged below the pin shaft. One end of the connecting rod is fixed to the frame, and the other end is fixed to the pin shaft through the connecting rod bearing; claws are installed below the needle moving shaft, and the inner end of the claws near the needle tube is provided with a clamping columnar needle. Jaw, its outer end is connected with the first power device, the first power device can drive the talons to insert the columnar needle into the jaws, the needle positioning plate and the talons have an inclined structure in the same direction; the frame is provided with The second power device, the second power device can drive the needle positioning plate and the inner end of the talons to move downward through the telescopic mechanism to bend the columnar needle.

The working principle of the needle-shaped tube automatic needle moving machine of the present invention is: the needle-shaped tube is placed and fixed on the support mechanism, the first power device in the looper linkage mechanism drives the talons to insert into the corresponding position of the needle-shaped tube, and the second The power device bends the needle tube to the required size through the needle-moving shaft; the first power device retracts to drive the talons to reset, and the second power device drives the needle-moving shaft to reset, completing a needle-moving process. The rack and pinion is driven by the manual or the servo motor of the walking mechanism to feed the second step according to the preset value of the electric control, and repeat the previous action process.

In order to further realize the object of the present invention, the following technical solutions can also be adopted:

As for the needle tube automatic needle moving machine described above, the first power device and the second power device are both gas-hydraulic pressurized cylinders or screw nut mechanisms driven by motors.

As for the needle tube automatic needle moving machine described above, a gas-liquid supercharging device is installed on the frame, and the gas-liquid supercharging device is composed of a gas-liquid cylinder, an oil storage bag, a briquetting block and a cylinder, and the gas-liquid cylinder piston The rod is connected to the piston rod of the cylinder through a briquetting block, the first power device is a small air-liquid cylinder, the air inlet of the small air-liquid cylinder communicates with the cylinder, and the oil storage bag is respectively connected to the oil inlet of the small air-liquid cylinder and the air-liquid cylinder Connected, the second power device is a large cylinder; when the looper linkage mechanism starts to bend the columnar needle, the piston rod of the gas-liquid cylinder stretches out so that the pressing block pushes the piston rod of the cylinder, and the gas in the cylinder is sent into the small gas-liquid cylinder Inside, the piston rod of the small air-hydraulic cylinder stretches out to drive the jaws of the pliers to extend obliquely into the end of the cylindrical needle of the needle tube, and the large cylinder stretches out to move the cylindrical needle to the required size; after the cylindrical needle is bent, the piston rod of the cylinder The extension drives the pressing block to push the piston rod of the air-hydraulic cylinder to retract, press the hydraulic oil into the small air-hydraulic cylinder through the oil storage bag, and pull the talons back horizontally to escape from the moved needle cluster.

In the automatic needle moving machine for needle tubes described above, two or four sets of looper link mechanisms are arranged symmetrically along the axis of the needle tube.

In the needle tube automatic needle moving machine described above, the needle positioning plate, the needle moving shaft and the talons have the same width in the axial direction of the needle tube.

In the automatic needle moving machine for needle tubes described above, the inner end of the talons is provided with an inclined surface of the jaw protruding from the jaw to facilitate the insertion of the columnar needle.

As for the needle tube automatic needle moving machine described above, the support mechanism is composed of a guide rail and a side plate, and two pieces of the guide rail are arranged symmetrically along the axial direction below the needle tube, and a vertical side plate is installed on the outside of the guide rail , the side panels are fixed on the frame.

As for the needle tube automatic needle moving machine as described above, the frame includes a bottom plate, a frame is installed on the front and rear sides above the bottom plate, a top plate is installed on the top of the frame, a vertical plate is installed on the lateral side of the frame, and a round hole is opened in the middle of the vertical plate , the supporting mechanism is arranged in the circular hole.

As for the needle tube automatic needle moving machine described above, the needle tube transmission frame is arranged on both sides of the frame, and the needle tube transmission frame includes a plurality of height-adjustable bases. A horizontal support is installed on the upper part of the support leg, and a longitudinal roller is arranged on the support.

As for the above-mentioned automatic needle moving machine for needle tubes, a traveling mechanism is installed on the support, and the traveling mechanism includes a servo motor, and a rack and pinion meshed between the rotating shaft and the roller shaft of the servo motor is provided.

Beneficial effects of the present invention:

1. The needle-shaped tube automatic needle moving machine of the present invention is a special equipment for bending needle-shaped tube columnar needles, which can completely replace manual work, can realize fully automatic control, has high production efficiency, saves labor resources, and reduces production costs. A power device is used to complete the bending process, and the bending quality of the columnar needles is controllable; in addition, multiple sets of looper linkage mechanisms can be symmetrically arranged along the axis of the needle tube, and multiple rows of columnar needles on the axis of the needle tube can be completed at one time. Bending, to further increase production speed and increase production efficiency.

2. The columnar needle can be bent to any angle through the looper linkage mechanism; during the bending process, the talons and the needle-moving shaft cooperate to complete the positioning and fixing of the columnar needle, so that the starting position of the needle-moving can be controlled Accurate, stable needle quality, not easy to fall off and break, and thus can ensure a high yield. At the same time, in order to facilitate the insertion of columnar needles into the jaws, an inclined surface protruding out of the jaws is provided at the inner end of the talons.

3. The structure of the present invention is compact, and multiple sets of looper linkage mechanisms are arranged symmetrically along the axial direction of the needle tube; the operation is convenient, the walking mechanism drives the needle tube forward, and the servo motor drives the rack and pinion to feed according to the preset value of the electric control. In the looper link mechanism, the control system detects that the steel pipe starts to move. After completing a needle moving process, the servo motor of the traveling mechanism drives the rack and pinion to advance to the second step according to the preset value, and repeats the previous action process with the same process. The needle is moved in steps, and the rack and pinion feeding method can better ensure the feeding accuracy of the needle tube.

4. The needle-shaped tube automatic needle moving machine of the present invention, since the needle-shaped tube is bent and the claws are clamped inside, a gas-liquid booster device is used, and the gas-liquid booster cylinder drives the claws to move forward and is pushed by air to ensure the speed. The retracting end of the pliers is driven by hydraulic oil, which increases the retracting force of the pliers, and the quality of needle moving is stable and the yield is high.

To sum up, the present invention has many advantages such as compact structure, convenient operation, precise control, not easy to drop the needle, stable size of the needle, good quality, high production efficiency, high yield and high degree of automation.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is a structural schematic diagram of the looper linkage mechanism in Fig. 1 (the small air-hydraulic cylinder and the large cylinder are not shown).

Fig. 3 is a view taken along direction B of Fig. 2 .

Fig. 4 is a structural schematic diagram of a single set of the looper linkage mechanism in Fig. 2 .

FIG. 5 is a schematic perspective view of FIG. 4 .

FIG. 6 is a schematic structural diagram of the rack in FIG. 1 .

Fig. 7 is an enlarged cross-sectional view along line A-A of Fig. 4 .

Fig. 8 is a schematic structural view of the running mechanism in Fig. 1 .

FIG. 9 is a schematic diagram of the transfer frame in FIG. 1 .

Fig. 10 is a schematic structural view of the gas-liquid booster device in Fig. 1 .

Fig. 11 is a schematic structural view of a needle tube in the prior art.

Fig. 12 is a structural schematic view of the bent columnar needle in Fig. 11 .

Reference signs: 1-frame, 11-bottom plate, 12-frame, 13-top plate, 14-vertical plate, 15-round hole, 2-support mechanism, 21-guide rail, 22-side plate, 3-looper Linkage mechanism, 31-needle positioning plate, 32-connecting rod, 33-needle moving shaft, 34-claw pliers, 341-jaw, 342-jaw inclined surface, 35-small air-hydraulic cylinder mounting plate, 36-big cylinder Mounting plate, 4-air-hydraulic booster, 41-air-hydraulic cylinder, 42-oil storage bag, 43-briquetting block, 44-cylinder, 5-transmission frame, 51-base, 52-leg, 53-bracket, 6-traveling mechanism, 61-servo motor, 62-rack and pinion.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

As shown in Figure 1-10, this embodiment is a needle tube automatic needle moving machine for bending needle tube columnar needles, including a frame 1, on which a needle tube for placing needle tubes is installed. The support mechanism 2, the longitudinal side of the support mechanism 2 is equipped with a looper link mechanism 3; the looper link mechanism 3 includes a needle positioning plate 31, and the needle positioning plate 31 is provided with a pin near the inner end of the needle tube, and the pin shaft The needle moving shaft 33 is arranged below the needle positioning plate 31, and a telescopic mechanism is installed on the needle positioning plate 31. The telescopic mechanism includes a connecting rod 32, one end of the connecting rod 32 is fixed with the frame, and the other end is fixed with the bearing pin through the connecting rod bearing; The claw pliers 34 are installed below the needle moving shaft 33, and the inner end of the claw pliers 34 near the needle-shaped tube is provided with a jaw 341 for clamping a columnar needle, and its outer end is connected with the first power unit, and the first power unit can drive the claw pliers 34. Insert the columnar needle into the jaw 341. The needle positioning plate 31 and the talons 34 have an inclined structure in the same direction; the frame is provided with a second power device, and the second power device can drive the needle positioning plate through a telescopic mechanism. 31 and the inner ends of the talons 34 move downward to bend the cylindrical needle.

The working principle of the needle-shaped tube automatic needle moving machine of the present invention is: the needle-shaped tube is placed and fixed on the support mechanism 2, and the first power device in the looper linkage mechanism 3 drives the claw pliers 34 to insert into the corresponding needle-shaped tube. Position, the second power device bends the needle tube to the required size through the needle positioning plate 31, needle moving shaft 33, and talons 34; the first power device retracts to drive the talons 34 to reset, and the second power device drives the needle moving shaft 33 is reset, and a needle-moving process is completed at this moment. The rack and pinion 62 is driven by the servomotor 61 of the manual or walking mechanism 6 to advance to the second step according to the numerical value preset by the electric control, and the previous action flow is repeated. Wherein, the looper link mechanism 3 is a key part of the present invention, by which all the actions of positioning, clamping, fixing and bending of the cylindrical needle on the outer periphery of the needle tube can be realized, the needle positioning plate 31, the claw pliers 34 and the needle moving The shaft 33 cooperates with the first power unit and the second power unit to achieve precise control and automatic operation; the bending of multiple rows of cylindrical needles can be completed simultaneously from the needle tube axis upward, and the needle moving efficiency is high, which can greatly reduce labor strength.

As shown in FIG. 1 , the first power device and the second power device of this embodiment may adopt a gas-hydraulic pressurized cylinder or a motor-driven screw nut mechanism. Both can better realize the stable quality of the needle moving, and it is not easy to break. Relatively speaking, the power performance of the gas-hydraulic booster cylinder is better, and the maintenance is convenient.

As shown in Figure 4, in the looper linkage mechanism 3 of this embodiment, the needle moving shaft 33 is fixed on the needle positioning plate 31 by bolts, and the needle positioning plate 31 is fixed on the connecting rods on the left and right sides through the pin shaft and the connecting rod bearings. On the 32, the length of the connecting rod bearing is adjustable. The talons 34 are supported by the plates on both sides, and can slide and expand on the plates on both sides, and the remaining parts are fixed on the connecting rod 32 with bolts. When the needle-shaped tube was stretched and fed, the inner end of the talons 34 stretched out to the corresponding position of the needle-shaped tube, and then the large cylinder pressed and stretched out to move the columnar needle, the talons 34 retreated and retracted, and the large cylinder retracted to complete an action.

As shown in Fig. 1, Fig. 2, Fig. 3, and Fig. 10, a gas-liquid supercharging device 4 is installed on the frame 1 of the present embodiment, and the gas-liquid supercharging device 4 is composed of a gas-liquid cylinder 41, an oil storage bag 42, a pressing block 43 and cylinder 44 are formed, and the piston rod of gas-liquid cylinder 41 is connected with cylinder 44 piston rods by briquetting block 43, and the first power unit is a small gas-liquid cylinder, and the air inlet of the small gas-liquid cylinder communicates with cylinder 44, and oil storage bag 42 is connected with cylinder 44 respectively. The oil inlets of the small gas-liquid cylinder and the gas-liquid cylinder 41 are connected, and the second power unit is a large cylinder; when the looper linkage mechanism 3 starts to bend the columnar needle, the piston rod of the gas-liquid cylinder 41 stretches out to make the briquetting block 43 push the cylinder 44 piston rods, the gas in the cylinder 44 is sent into the small gas-liquid cylinder, the piston rod of the small gas-liquid cylinder stretches out and drives the talons 34 to stretch into the columnar needle end of the needle tube, and the large cylinder stretches out to move the needle to the required size ; After the columnar needle is bent, the piston rod of the cylinder 44 stretches out to drive the press block 43 to push the piston rod of the gas-hydraulic cylinder 41 to retract, and the hydraulic oil is pressed into the small gas-liquid cylinder through the oil storage bag 42, and the claw pliers 34 are pulled horizontally to move backward. Good needles come out of the bush. Wherein, the small air-liquid cylinder and the large cylinder are fixed to the frame 1 by the small air-liquid cylinder mounting plate 35 and the large cylinder mounting plate 36 respectively.

As shown in Fig. 1 and Fig. 2, there are four sets of looper linkage mechanisms 3 arranged symmetrically along the needle-shaped tube axis in this embodiment. The needle positioning plate 31 and the needle moving shaft 33 are equal in width in the axial direction of the needle tube. That is, the looper link mechanism 3 can be arranged symmetrically around the cross-section of the needle-shaped tube, and can simultaneously complete the bending of four rows of columnar needles in multiple directions along the axis of the needle-shaped tube. Therefore, by increasing the width of the needle positioning plate 31, the needle moving shaft 33, and the inner end of the claw pliers 34, and increasing the output power of the large cylinder, the number of rows of columnar needles that can be bent at the same time can be increased, but the difficulty of positioning the columnar needles will be correspondingly increased. To reduce the yield of cylindrical needle bending, it is necessary to select the appropriate number of simultaneous bending rows according to the diameter and spacing of the needle tube and cylindrical needles, usually 2-8 rows can be selected.

As shown in FIG. 4 and FIG. 5 , the inner end of the talons 34 in this embodiment is provided with an inclined jaw surface 342 protruding from the jaw 341 for facilitating the insertion of a columnar needle. It can make it more convenient for the columnar needle to be inserted into the jaw, and it is easy to position and align, thereby improving the production speed and efficiency.

As shown in Fig. 6 and Fig. 7, the support mechanism 2 of the present embodiment is composed of a guide rail 21 and a side plate 22. The guide rail 21 is provided with two pieces symmetrically along its axial direction below the needle-shaped tube, and the outer side of the guide rail 21 is installed with a vertical Side plate 22, side plate 22 is fixed on the frame 1. The guide rail 21 is used to facilitate the axial movement of the needle-shaped tube. At the same time, because the cylindrical needles on the needle-shaped tube are arranged in multiple directions on the same cross-section circumference, and cooperate with the symmetrically arranged looper linkage mechanism 3, the same cross-section circumference can be completed at the same time. Bending of cylindrical needles.

In order to facilitate the installation of the looper link mechanism 3 and the gas-liquid booster device 4, and make the structure more compact, as shown in Figure 6, the frame 1 of this embodiment includes a bottom plate 11, and a frame 12 is installed on the front and rear sides above the bottom plate 11. Top plate 13 is installed on the top of 12, and vertical plate 14 is installed on the lateral side of frame 12, and circular hole 15 is arranged in the middle of vertical plate 14, and support mechanism 2 is arranged in circular hole 15.

As shown in Figure 9, in order to facilitate the axial movement of the needle tube, needle tube transmission racks 5 are arranged on both sides of the rack 1 of this embodiment, and the needle tube transmission rack 5 includes a plurality of bases 51 on which vertical To the supporting legs 52, a plurality of supporting legs 52 tops are equipped with horizontal supports 53, and the supports 53 are provided with longitudinal rollers. Wherein, the base 51 of the transmission frame 5 can be adjusted up and down, which is convenient for horizontal adjustment during installation. In addition, it is also convenient to adjust the transmission frame 5 to realize the alignment of the center of the looper link mechanism 3 and the axis of the needle tube.

As shown in Figure 8, in order to realize the precise feeding of the needle tube driven by the traveling mechanism 6, the traveling mechanism 6 is installed on the bracket 53 of this embodiment. The rack and pinion 62. The traveling mechanism 6 should be installed on the front part of the transmission frame 5, and the rack and pinion 62 is driven by the servo motor 61 first, and the needle-shaped tube is sent into the looper linkage mechanism 3 to realize bending of the columnar needle, and the bent needle-shaped tube Gradually retreat to the rear of the transfer frame 5.

The technical contents not described in detail in the present invention are all known technologies.

Claims (10)

1. the needle-tube for the bending of needle-tube column pin removes pin machine automatically, comprises frame, it is characterized in that, described frame is installed the supporting mechanism for placing needle-tube, and looper link mechanism is installed in longitudinal side of supporting mechanism; Described looper link mechanism comprises pin location-plate, pin location-plate is provided with bearing pin near the inner of needle-tube, the below of bearing pin is arranged removes needle shaft, telescoping mechanism installed by pin location-plate, described telescoping mechanism comprises connecting rod, one end and the frame of connecting rod are fixed, and its other end is fixed by the connecting-rod bearing and bearing pin; The described below mounting jaw pincers removing needle shaft, pawl pincers are provided with the jaw of sandwiched column pin near the inner of needle-tube, its outer end is connected with the first power set, and the first power set can be with pawl to clamp and column pin is inserted jaw, and described pin location-plate, pawl tonger have the incline structure of equidirectional; Described frame is provided with the second power set, and the second power set are moved down by the inner that telescoping mechanism can drive pin location-plate and pawl to clamp and make the bending of column pin.

2. needle-tube according to claim 1 removes pin machine automatically, it is characterized in that, described first power set, the second power set are pneumohydraulic pressure-cylinder or motor-driven screw-nut body.

3. needle-tube according to claim 1 removes pin machine automatically, it is characterized in that, described frame installs apparatus for pressurizing gas, liquid, described apparatus for pressurizing gas, liquid is made up of airdraulic actuator, oil storage bag, briquetting and cylinder, airdraulic actuator piston rod is connected by briquetting with cylinder piston rod, and described first power set are little airdraulic actuator, and the air inlet of described little airdraulic actuator is communicated with cylinder, oil storage bag is communicated with the oil-in of little airdraulic actuator, airdraulic actuator respectively, and described second power set are large cylinder; When looper link mechanism starts the bending of column pin, airdraulic actuator piston rod stretches out and makes briquetting promote cylinder piston rod, gas in cylinder is sent in little airdraulic actuator, stingy liquid cylinder piston bar stretches out the oblique column needle end part stretching into needle-tube of jaw of band pawl pincers, and large cylinder stretches out size column pin being moved to requirement; After the bending of column pin, cylinder piston rod stretches out and drives briquetting to promote the retraction of airdraulic actuator piston rod, is pressed in stingy fluid cylinder by hydraulic oil, pulls pawl pincers level to retreat to deviate from the grouping of removing by oil storage bag.

4. needle-tube according to claim 1 removes pin machine automatically, it is characterized in that, described looper link mechanism is axially symmetrically arranged with 2 covers or 4 covers along needle-tube.

5. needle-tube according to claim 1 removes pin machine automatically, it is characterized in that, described pin location-plate, remove needle shaft and pawl pincers equal at needle-tube width axially.

6. needle-tube according to claim 1 removes pin machine automatically, it is characterized in that, described pawl pincers are inner is provided with the jaw inclined plane for facilitating column pin to insert of stretching out outside jaw.

7. needle-tube according to claim 1 removes pin machine automatically, it is characterized in that, described supporting mechanism is made up of guide rail and side plate, and described guide rail is axially symmetrically arranged with two pieces in the below of needle-tube along it, vertical side plate is installed in the outside of guide rail, and side plate is fixed in frame.

8. needle-tube according to claim 1 removes pin machine automatically, it is characterized in that, described frame comprises base plate, side installation frame before and after above base plate, top board is installed at the top of framework, and described framework cross side installs vertical plate, have circular hole in the middle of vertical plate, described supporting mechanism is arranged in circular hole.

9. needle-tube according to claim 1 removes pin machine automatically, it is characterized in that, described frame both sides arrange needle-tube conveyer frames, needle-tube conveyer frames comprises multiple Height Adjustable base, base is installed vertical supporting leg, the support of level is installed on multiple supporting leg top, and support is provided with longitudinal roller bearing.

10. needle-tube according to claim 9 removes pin machine automatically, it is characterized in that, walking mechanism installed by described support, and described walking mechanism comprises servomotor, arranges meshed gears tooth bar between servomotor rotating shaft and roller bearing.