CN113020298B - Double-end automatic stretcher - Google Patents

Abstract

The invention discloses a double-head automatic stretching machine, which comprises a stretching die and a stretching trolley. The stretching blocks of the stretching die are provided with a plurality of tapered holes with gradually smaller diameters, and the cutting cables pass through the tapered holes. This completes the stretch. The stretching trolley is used to clamp one end of the cutting rope, so as to provide power for the stretching of the cutting rope. There are two stretching dies and the two stretching dies are installed symmetrically to each other, and there are also two stretching trolleys, which are respectively distributed on both sides of the two stretching dies. When in use, the cutting cable is respectively pulled by the stretching trolleys on both sides, so as to gradually pass through each tapered hole, thereby gradually stretching the cutting cable to the preset size. The invention pulls the cutting cable back and forth through two stretching trolleys, and makes the cutting cable through the tapered holes of the two drawing dies for pulling back and drawing, so that the cutting cable can be processed quickly and the volume can be effectively reduced. And the present invention can realize automation, thus greatly improves production efficiency, reduces cost, improves product quality.

Description

A double-head automatic stretching machine

technical field

The invention relates to the processing technology of pyrotechnics, in particular to the processing of cutting cables, in particular to a double-head automatic stretching machine.

Background technique

The processing process of the existing cutting wire is roughly as follows: the two ends of the relatively thick pipe filled with chemicals (parameters are shown in Table 1.1) are sharpened, passed through the tapered drawing die, and the drawing force is provided by mechanical power equipment, and the diameter of the thick pipe is Decrease in turn, and finally reach the required size, and the number of drawing times can reach up to 48 times. Decompose the existing process, specifically including the following steps:

① One product is stretched at a time. After the stretching is completed once, it needs to be manually transferred and turned around before stretching;

② Manually replace the mold each time;

③Manual clamping by stretching trolley;

④ Cooling method Soap water cooling and cleaning and lubrication;

⑤ The stretching speed needs to be manually adjusted each time;

⑥The movement position of the stretching trolley needs manual intervention and adjustment, and the product may fall when the product is pulled;

⑦ There is no safety protection in the whole stretching process;

⑧Maximum number of molds at one time: 48 molds.

Table 1.1

By sorting out the existing process, it can be found that the existing processing process has problems such as high labor intensity, poor product consistency, and information islands. The details are as follows:

① There are many manual intervention links (tip rolling, mold replacement, stretching manual clamping, manual adjustment of stretching speed), labor intensity of workers is high, efficiency is low, and no more than 12 products are processed per shift;

②The degree of automation is low, the speed of the stretching process is manually adjusted, there is no tension control, and the product consistency is poor;

③ The degree of informatization is low, and information such as processing parameters (tension, indexing) and product processing progress cannot be shared and saved in time;

④ Manually replace the mold each time, and it needs to be replaced many times manually, the efficiency is low, and the risk of human error is high;

⑤ The head rolling mechanism is completely naked, which poses a safety risk;

⑥The rolling head mechanism has no rolling groove, no marking, and the guiding device is prone to errors.

In this regard, the inventor has designed a double-head automatic stretching machine, which can save space by bidirectional reciprocating stretching through two sets of molds. Reduce the volume of equipment and realize automation, thereby improving processing efficiency, reducing labor costs, and ensuring product qualification rate.

Contents of the invention

In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a double-head automatic stretching machine.

To achieve the above object, the present invention provides a double-head automatic stretching machine, comprising a stretching die and a stretching trolley, a plurality of tapered holes with gradually smaller diameters are arranged on the stretching block of the stretching die, The cutting cable passes through the tapered hole to complete the stretching; the stretching trolley is used to clamp one end of the cutting cable to provide power for the stretching of the cutting cable; the stretching die has two and two stretching dies Installed symmetrically to each other; there are also two stretching trolleys, which are respectively distributed on both sides of the two stretching molds; the cutting cables are respectively pulled by the stretching trolleys on both sides, so as to gradually pass through each tapered hole to gradually pull the cutting cables stretch to preset size;

Two drawing dies and two pull rope trolleys are installed on the bottom plate, and trolley guide rails, shaft plates, and bottom plate guide seats are also installed on the bottom plate. The bottom plate guide seat is provided with bottom plate guide holes that allow cutting cables to pass through. The trolley The guide rail is engaged with the trolley chute at the bottom of the trolley seat and can be slidably assembled. The shaft plate and the wheel shaft can be assembled in a circle. The pull plate and the rear pull plate are assembled and fixed, and one of the wheel shafts is connected with the trolley output shaft of the trolley motor.

Preferably, the stretching die comprises a stretching bottom plate, a stretching top plate, a stretching side plate, and a draft tube, and the stretching side plates are respectively installed on the sides of the stretching bottom plate and the stretching top plate, and the stretching bottom plate, the stretching At least two lifting screw rods are installed between the extended roof plates, and the lifting screw rods pass through the lifting pallet and are threadedly assembled with it;

An adjusting bottom plate is installed on the lifting pallet, and there are two diversion pipes, and the other ends of the two diversion pipes are respectively connected and fixed in sealing connection with the connection holes on the connection cover, and the connection cover is installed on one end of the pull cord block. And the inside of the connecting cover is provided with a diversion groove; the stretching block is respectively provided with a tapered hole, a heat dissipation channel, a connecting channel, and a liquid passage hole, and the two ends of the liquid passage hole are respectively connected with the diversion groove and one end of the heat dissipation passage , there are at least two heat dissipation channels and they are respectively arranged on the upper and lower sides of the tapered hole, and the two heat dissipation channels are communicated through a connecting channel.

Preferably, the adjustment bottom plate is respectively assembled and fixed by the first vertical plate, the second vertical plate, the third vertical plate, the fourth vertical plate and the adjustment top plate, and the first vertical plate, the second vertical plate, and the third vertical plate are respectively connected with Two holding pipes are assembled and fixed, one end of one holding pipe is connected with the outlet of the circulation pump, the inlet of the circulation pump is connected with the cooling liquid, and one end of the other holding pipe is connected with the device for storing the cooling liquid; one end of the two guide pipes is respectively It is inserted into the other end of the two holding tubes and can be axially slid and sealed with them.

Preferably, the diameter of the tapered hole gradually decreases from the larger diameter end to the smaller diameter end, and there are multiple tapered holes distributed along the length direction of the stretching block with gradually smaller diameters; The bottom of the extension block is fixed with a stretching slide rail, which is engaged with the stretching chute and can be slidably assembled. The stretching chute is set on the adjustment bottom plate; the top of the stretching block is also fixed with a driving block. The drive block and the switch screw are screwed and assembled, and the two ends of the switch screw are respectively assembled with the third vertical plate and the fourth vertical plate, which can be rotated in a circle, and one end of the switch screw passes through the fourth vertical plate and is connected with the output shaft of the switching motor fixed.

Preferably, the side of the stretching block is assembled and fixed with the two relief plates through the roller guide plate, and roller guide holes corresponding to the tapered holes are arranged on the roller guide plate; the tops of the two relief plates are respectively connected with the roller The top plate is assembled and fixed, and the motor frame for giving way is installed on the top plate of the rollers. The step-off driving plate is set on the step-off guide shaft, and the two ends of the step-off guide shaft are respectively fixed on the step-off motor frame and the roller top plate, and the step-off driving plate can move along the axial direction of the step-off guide shaft; the step-off drive The plate is assembled and fixed by the relief connecting plate and the relief slider;

The step-off plate is provided with a step-off chute, and a step-off slide block is fitted and slidably installed in the step-off chute, and the two ends of the step-off block and a rotating shaft of a roller can be assembled in a circle, so that There are two roller shafts, and the two ends of the other roller shaft can be assembled with the setback plate for circular rotation, and one end of the roll shaft passes through one of the setback plates and is connected and fixed with the output shaft of the roller motor through a coupling. The roller motor is installed on the motor mounting plate, and the motor mounting plate is installed on the step-off plate; rollers are fitted and fixed on the rotating shaft of the rollers, and roller grooves are arranged at corresponding positions of the rollers and each tapered hole.

Preferably, an elongated orifice plate is installed on the side of the stretching block away from the roller guide plate, and the elongated orifice plate is respectively provided with drawing and holding holes of the same diameter as the ends corresponding to the smallest diameter ends of the tapered holes; A supporting orifice plate is also fixed on the lifting pallet, and a supporting hole is arranged on the supporting orifice plate, and the supporting hole is directly opposite to the pressing channel, so that the cutting cable is guided into the pressing channel.

Preferably, an electrical box is installed on the trolley seat, and a tension guide rail is installed on the top of the electrical box. The tension guide rail is engaged with a tension chute and can be slidably assembled. The tension chute is arranged on the tension base. The front pull plate and the tension base are respectively assembled and fixed with the two ends of the tension sensor; the tension base is also equipped with a clamping shell and a front end plate, and the clamping shell is respectively provided with a first clamping chute and a second clamping chute. Tight chute;

The clamping shell, the front end plate and the trigger block are all provided with a clamping channel through which the cutting cable can pass, and a movable clamping block is engaged and slidably installed in the first clamping chute. The movable block is respectively provided with a block part and a guide part, and the top of the movable block is provided with a magnet part, the magnet part is made of a permanent magnet, and the bottom of the guide part passes through the fixed block and is assembled with the connecting part fixed, the fixed block is installed at the bottom of the pressing channel and below the block part.

Preferably, a detection box is installed in the clamping case, and the interior of the detection box is a hollow detection cavity. A micro switch is installed on the side of the detection cavity close to the front pull plate, and a The trigger block is provided with a trigger protrusion on one side of the trigger block facing the trigger end of the micro switch, and a trigger spring is set outside the trigger protrusion, and the other end of the trigger spring is closely attached to the inner wall of the detection chamber.

Preferably, several locking grooves are provided on the side wall of the guide part, and the locking grooves are engaged with the locking protrusions on the locking plate; the locking plate is fixed on one end of the locking rod, and the locking plate It is engaged with the second clamping chute and can be slidably assembled. The other end of the locking rod is fitted with a locking spring and then loaded into the unlocking chute and fixed with the unlocking magnet block. The unlocking chute is installed in the unlocking cover. The unlocking cover is installed on the clamping shell and the front end plate; the locking protrusion is respectively provided with a slope part and a straight part, and the slope part is located above the straight part.

Preferably, an auxiliary bracket is installed on the bottom plate close to the drawing die, a wireless charging transmitter and an unlocking soft iron block are respectively installed on both sides of the auxiliary bracket, and a locking soft iron block is installed on the top of the auxiliary bracket. The soft iron block and the locked soft iron block are respectively fixed on the unlocked soft iron column and the locked soft iron column, and the outside of the unlocked soft iron column and the locked soft iron column are respectively equipped with a second coil and a first coil; After the second coil is connected to direct current, a magnetic field is generated, thereby magnetizing the unlocked soft iron column and the locked soft iron column, so that the unlocked soft iron block generates a magnetic field with the same magnetic field as the unlocked magnet block; after the first coil is connected to direct current, the locked soft iron block The block is magnetized so that a magnetic field opposite to that of the magnet part is produced.

The beneficial effects of the present invention are:

1. The drawing die of the present invention can realize the gradual stretching of the cutting wire through a plurality of tapered holes with gradually changing diameters, thereby ensuring the processing quality and qualified rate of the cutting wire. In addition, the present invention can realize the reciprocating movement of the cutting cable for stretching by setting two sets of drawing dies. On the one hand, this design can reduce the volume of the equipment, on the other hand, it can effectively improve the processing efficiency, and avoid the damage caused by continuous manual replacement of the cutting cable. Inefficiency problem.

2. The stretching trolley of the present invention can automatically detect the position of the cutting cable, then clamp the cutting cable, and provide power through the steel wire rope to pull the cutting cable. The stretching trolley is equipped with a tension sensor, so that it can detect the tension when the cutting cable is pulled, so as to better control the processing parameters and ensure the product qualification rate.

Description of drawings

1-9 are structural schematic diagrams of the present invention. Among them, Fig. 3 and Fig. 6 are the cross-sectional views of two mutually perpendicular center planes where the axis of the cutting cable is located; Fig. 4-Fig. 5 are enlarged views of F1 and F2 in Fig. 3; Fig. 7-Fig. Enlarged picture at F3 and F4.

10-20 are structural schematic diagrams of the stretching die. Figure 12 is a cross-sectional view of the central plane where the axis of the retaining tube is located; Figure 13 and Figure 16 are cross-sectional views of two mutually perpendicular central planes where the axis of the output shaft is located; Figure 18 is a schematic structural view of the stretching block.

Fig. 21-Fig. 24 are structural schematic diagrams of the stretching trolley. Fig. 23 is a cross-sectional view of the central plane where the axis of the locking rod is located; Fig. 24 is an enlarged view of F5 in Fig. 23 .

25-26 are schematic diagrams of the internal structure of the stretching trolley.

Implementation

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

In describing the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", " The orientation or positional relationship indicated by "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, so as to Specific orientation configurations and operations, therefore, are not to be construed as limitations on the invention.

Referring to Figures 1-24, the double-head automatic stretching machine of this embodiment includes a stretching die B and a stretching trolley A. The stretching block of the stretching die B is provided with a plurality of cones with gradually smaller diameters. Shaped hole B531, the cutting wire 100 passes through the tapered hole B531 so as to complete the stretching. The stretching trolley A is used to clamp one end of the cutting cable, thereby providing power for stretching the cutting cable. There are two stretching dies B and the two stretching dies B are installed symmetrically with each other, and there are also two stretching trolleys A, which are respectively distributed on both sides of the two stretching dies B. When in use, the cutting cable is respectively pulled by the stretching trolleys A on both sides, so as to gradually pass through each tapered hole B531, thereby gradually stretching the cutting cable to a preset size.

The two drawing dies B and the drawstring trolley A are all installed on the base plate 300, and the base plate 300 is also equipped with a trolley guide rail 310, a shaft plate 320, and a base plate guide seat 330. The bottom plate guide hole 331 passed through, the trolley guide rail 310 is engaged with the trolley chute A133 at the bottom of the trolley seat A130, and can be slidably assembled. The shaft plate 320 and the wheel axle A420 can be assembled in a circular rotation. There is a steel wire rope A510 around the outside, and the two ends of the steel wire rope A510 are respectively assembled and fixed with the front pull plate A131 and the rear pull plate A132 on the trolley seat A130, and one of the wheel shafts A420 is connected with the trolley output shaft A261 of the trolley motor A260 through a coupling After starting, the trolley motor A260 can drive the trolley output shaft A261 to rotate in a circle, thereby driving the trolley seat A130 to move along the trolley guide rail A310 through the wire rope. The bottom plate 300 is also provided with a base through-slot 301 corresponding to the steel wire rope A510, and the base through-slot 301 is used to prevent the steel wire rope from contacting with the base 300 to cause interference.

An electrical box A250 is also installed on the trolley seat A130, and a battery A251, a circuit board A252, and a wireless charging receiver A253 are respectively installed in the electrical box A250, and the wireless charging receiver A253 is directly opposite to the wireless charging transmitter A220, thereby When the online charging receiver A253 is close to the wireless charging transmitter A220, wireless charging can be performed, and the charging energy is processed by the charging and discharging circuit on the circuit board and stored in the battery. There are also MCU and wireless module installed on the circuit board, the signal end of MCU is respectively connected with the signal end of the wireless module, the output end of the micro switch A230 and the output end of the tension sensor A240, and the wireless module is used for wireless communication with external equipment. The Bluetooth module is adopted, so that when in use, the information collected by the MCU can be wirelessly transmitted to external devices in real time, so that the operator can know the force of the tension sensor and the triggering of the micro switch.

The top of the electrical box A250 is equipped with a tension guide rail A180, the tension guide rail A180 is engaged with the tension chute A141 and can be slidably assembled, the tension chute A141 is arranged on the tension base A140, the front tension plate A131, tension The base A140 is respectively assembled and fixed with the two ends of the tension sensor A240, so that when the wire rope pulls the front pull plate A131, it can generate tension input to the tension sensor A240, thereby detecting the tension on the cutting cable 100 during stretching. A clamping shell A150 and a front end plate A160 are also mounted on the tension base A140, the clamping shell A150 is respectively provided with a first clamping chute A151 and a second clamping chute A152, and the clamping shell A150 A detection box A170 is installed, and the interior of the detection box A170 is a hollow detection cavity A171. A micro switch A230 is installed on the side of the detection cavity A171 close to the front pull plate A131, and the detection cavity A171 is snapped and slidably installed with The trigger block A340, the side of the trigger block A340 facing the trigger end of the micro switch A230 is provided with a trigger protrusion A341, the trigger protrusion A341 is equipped with a trigger spring A520, and the other end of the trigger spring A520 is closely attached to the inner wall of the detection chamber A171, Thus, a pushing force is applied to the trigger block A340 to move away from the micro switch.

The clamping shell A150, the front end plate A160 and the trigger block A340 are all provided with a clamping channel through which the cutting cable 100 can pass, and the first clamping chute A151 is engaged and slidably installed with a movable Block A320, the movable block A320 is respectively provided with a block part A321 and a guide part A322, and the top of the movable block A320 is provided with a magnet part (above the block part A321, the side of the block part A321 away from the guide part A322 ), the magnet part is made of permanent magnets, the bottom of the guide part A322 respectively passes through the fixed block A330 and then is assembled and fixed with the connecting part A323, and the fixed block A330 is installed at the bottom of the pressing channel and the block part A321 below.

The connecting part A323 is loaded into the third clamping chute A153 and can be slidably assembled with it, and a clamping return spring A530 is installed between the connecting part A323 and the bottom surface of the third clamping chute A153, and the clamping resets The spring A530 is used to exert an upward pushing elastic force on the connecting portion A323. In the initial state, the distance between the block part A321 and the fixed block A330 is at the maximum state.

The block part A321 and the fixed block A330 are respectively provided with a first corner slot A3211 and a second corner slot A331, and the first corner slot A3211 and the second corner slot A331 are triangular slot bodies with openings corresponding to each other. When in use, the upper and lower ends of the cutting cable are clamped respectively by the first angular groove A3211 and the second angular groove A331, thereby realizing clamping of the cutting cable.

The side wall of the guide part A322 is provided with several locking grooves A3221, and the locking grooves A3221 are engaged with the locking protrusions A351 on the lock plate A350, so as to realize the locking of the guide part A322. The guide portion A322 cannot move. The lock plate A350 is fixed on one end of the lock bar A430, and the lock plate A350 is engaged with the second clamping chute A152 and can be slidably assembled, and the other end of the lock bar A430 is fitted with a locking spring A540 and then loaded into the unlocking chute The unlocking chute A191 is installed in the unlocking cover A190, and the unlocking cover A190 is installed on the clamping shell A150 and the front plate A160. The locking spring A540 is used to apply an elastic force to the locking plate A350 to push toward the guide part A322, and the locking protrusion A351 is respectively provided with a slope part A3511 and a straight part A3512, and the slope part A3511 is located at the straight part A3512 above. This design enables the guide part A322 to drive the lock plate A350 to slide into the second clamping chute A152 against the elastic force of the locking spring A540 through the slope part A3511 when the guide part A322 moves down, so that the guide part A322 moves down. The straight-facing part A3512 can prevent the guide part A322 from moving up, thereby gradually making the clamping block part A321 move toward the fixed clamping block A330 to clamp the cutting wire. After clamping the cutting cable, the cutting cable can be pulled by the wire rope, so as to pull the cutting cable.

An auxiliary bracket A110 is also installed on the base plate 300 close to the drawing mold B. A wireless charging transmitter A220 and an unlocked soft iron block A312 are respectively installed on both sides of the auxiliary bracket A110. A locked soft iron block is installed on the top of the auxiliary bracket A110. A311, the unlocked soft iron block A312 and the locked soft iron block A311 are respectively fixed on the unlocked soft iron post A412 and the locked soft iron post A411, and the unlocked soft iron post A412 and the locked soft iron post A411 are respectively set There is a second coil A212 and a first coil A211. The second coil A212 generates a magnetic field after being connected to a direct current, thereby magnetizing the unlocking soft iron post A412 and the locking soft iron post A411, so that the unlocking soft iron block A312 generates and unlocks the magnet block The magnetic field of the same magnetic field of A313, that is, the opposite sex is opposite. At this time, the unlocking soft iron block A312 produces a magnetic attraction to the unlocking magnet block A313, which makes the unlocking magnet block A313 overcome the elastic force of the locking spring to move to the unlocking soft iron block A312, thereby making the lock plate A350 Separated from the guide part A322, the guide part A322 moves up under the elastic force of the clamping return spring A530, so that the movable clamping block moves up to loosen the clamping of the cutting wire. After the first coil A211 is connected to direct current, the locked soft iron block A311 is magnetized, thereby generating a magnetic field opposite to the magnetic field of the magnet part, that is, the same pole is opposite to apply a repulsive magnetic force to the magnet part, thereby driving the movable block A320 to overcome the clamping The elastic force of back-moving spring A530 moves down, thereby clamps cutting rope. In this embodiment, the field strength of the locked soft iron block A311 can be controlled according to the different diameters of the cutting wire after processing, so as to control the repulsive magnetic force applied to the movable clamping block A320, so as to ensure that the cutting wire can be clamped without crushing the cutting wire. search.

The unlocked soft iron post A412 and the locked soft iron post A411 are installed in the first outer cover A121 and the second outer cover A122 respectively, and the first outer cover A121 and the second outer cover A122 are installed on the auxiliary bracket A110 respectively. When in use, the cutting cable first enters the pressing channel, and then moves toward the trigger block A340, so that the end face of the cutting cable is pressed against the trigger block, and the cutting cable continues to move, thereby driving the trigger block to move toward the micro switch until the micro switch is activated. Trigger, the micro switch is triggered to input a signal to the MCU, and the MCU sends a locking command to the outer wall device through the wireless module, and the external device controls the power supply of the first coil, thereby clamping the cutting cable. Then start the trolley motor, and pull the trolley seat through the wire rope to move towards the direction of the trolley motor to realize the pulling of the cutting cable. After the drawing is completed, the cutting cable passes through the drawing die B, and then adjusts the position of the drawing die B and reverses the motor of the trolley, thereby driving the cutting cable to move in reverse to fit into the No. 2 tapered hole B531, and then pass through After stretching the mold, enter another stretching trolley A, and reversely draw through this stretching trolley A to complete stretching of another size, and reciprocate in this way, so as to realize the reciprocating stretching of the cutting rope. In this embodiment, a holding support plate can be set on the side of the drawing die B close to the drawing trolley A, and the holding support plate is fixed on the bottom plate 300. When the cutting cable is pulled out of the rope mould, the holding support plate supports the cutting cable away from One end of the stretching trolley is clamped tightly with it, so as to prevent the end of the cutting cable from falling, causing the problem of manual access. It is also possible to set a holding hole assembled with the cutting cable on the holding support plate, which can effectively guide the cutting cable, so that when the cutting cable enters the drawing die in the opposite direction, it can directly enter the second part through the holding hole. The larger diameter end of the tapered hole to complete the automatic feeding. When the stretching trolley A reversely moves into the auxiliary bracket A110, the wireless charging transmitter starts to charge the battery, and the second coil is powered, thereby releasing the clamping of the cutting cable. And throughout the stretching process. The tension sensor always detects the pulling force on the cutting wire, and the pulling force on the cutting wire can be adjusted by adjusting the power of the trolley motor. This greatly increases the precision and flexibility of the process, so that the processing quality can be effectively guaranteed.

The stretching die B includes a stretching bottom plate B111, a stretching top plate B112, and a stretching side plate B113, and the stretching side plates B113 are respectively installed on the sides of the stretching bottom plate B111 and the stretching top plate B112. At least two lifting screw rods B210 are installed between B111 and the stretching top board B112, and the lifting screw rods B210 pass through the lifting pallet B120 and are threadedly assembled with it. In this embodiment, there are four lifting screws B210, and the two lifting screws B210 that are close to each other (in the width direction of the lifting pallet) are respectively connected and driven by the second belt B420, and the two are far away from each other (in the direction of the length of the lifting pallet). The lifting screws B210 are connected and driven by a first belt B410, and one of the lifting screws B210 is connected with the lifting output shaft of the lifting motor B310 by a third belt B430. Therefore, when the lifting motor B310 is activated, the four lifting screws B210 rotate synchronously, so as to smoothly drive the lifting pallet B120 to move along its axial direction. In this embodiment, the first belt B410, the second belt B420, and the third belt B430 are connected to the lifting screw B210 and the lifting output shaft in the way that the lifting screw B210 and the lifting output shaft are equipped with pulleys and then passed through correspondingly. The first belt B410, the second belt B420, and the third belt B430 are connected to form a belt transmission mechanism, which is a common structure.

An adjustment base plate B130 is installed on the lifting pallet B120, and the adjustment base plate B130 is respectively assembled and fixed through the first vertical plate B141, the second vertical plate B142, the third vertical plate B143, the fourth vertical plate B144 and the adjustment top plate B140. The first vertical plate B141, the second vertical plate B142, and the third vertical plate B143 are respectively assembled and fixed with two holding pipes B220, one end of one holding pipe B220 is connected with the outlet of the circulating pump, and the inlet of the circulating pump is connected with the cooling liquid. One end of the other holding pipe B220 communicates with the cooling liquid storage device, so that the cooling liquid can be circulated into the two holding pipes B220 when the circulation pump is activated. One ends of the two guide tubes B230 are respectively inserted into the other ends of the two holding tubes B220 and can be axially slid and sealed with them, and the other ends of the two guide tubes B230 are respectively sealed with the connecting holes B562 on the connecting cover B560 Connected and fixed, the connection cover B560 is installed on one end of the pull cord block B530, and the inside of the connection cover B560 is provided with a diversion groove B561; the stretch block B530 is respectively provided with a tapered hole B531, a heat dissipation channel B533, a The channel B532 and the liquid passage hole B534, the two ends of the liquid passage hole B534 are respectively connected with the diversion groove B561 and one end of the heat dissipation channel B533, and there are at least two heat dissipation channels B533 arranged on the upper and lower sides of the tapered hole B531 , the two heat dissipation channels B533 communicate through the connecting channel B532. This makes it possible for the coolant to continuously enter the heat dissipation channel B533 from one of the flow guide tubes B230 when the circulation pump is started, and then flow out from the other flow guide tube B230 to achieve rapid cooling of the stretching block, thereby ensuring The temperature of the stretching block is within the process design range (generally not exceeding 70°C).

The diameter of the tapered hole B531 gradually decreases from the larger diameter end to the smaller diameter end, so that the cutting cable can easily penetrate from the larger diameter end, and then form extrusion when passing through the smaller diameter end, and then pass through the cutting cable. Drawing forms the way of cold drawing processing. There are multiple tapered holes B531 distributed along the length direction of the stretching block B530 with gradually smaller diameters. This design allows the cutting cable to be stretched multiple times through different tapered holes.

The stretching slide rail B550 is fixed on the bottom of the stretching block B530, and the stretching slide rail B550 is engaged with the stretching chute B131 for slidable assembly, and the stretching chute B131 is arranged on the adjustment base plate B130. The top of the stretching block B530 is also fixed with a driving block B570, the driving block B570 and the switching screw B240 are threaded and assembled, and the two ends of the switching screw B240 are respectively rotatably assembled with the third vertical plate B143 and the fourth vertical plate B144, One end of the switching screw B240 passes through the fourth vertical plate B144 and is connected and fixed with the output shaft of the switching motor B340 through a coupling. Move it axially to adjust the different tapered holes B530 to face the stretching trolley, so as to achieve stretching through different tapered holes. The switching motor B340 is a servo motor, so that the stroke of the stretching block B530 can be accurately controlled.

The side of the stretching block B530 is also assembled and fixed by the roller guide plate B520 and two relief plates B630. The roller guide plate B520 is provided with roller guide holes corresponding to the tapered holes one by one, so that the cutting wire can pass through the rollers. Guide hole; the tops of the two relief plates B630 are respectively assembled and fixed with the roller top plate B620, the relief motor bracket B610 is installed on the roller top plate B620, the relief motor B320 is installed on the relief motor frame B610, and the relief motor B320 is installed The output shaft B321 passes through the displacement driving plate B640 and is screwed with it to assemble, the displacement driving plate B640 is set on the displacement guiding shaft B250, and the two ends of the displacement guiding shaft B250 are respectively fixed on the displacement motor frame B610 , On the roller top plate B620, and the abdication drive plate B640 can move along the axial direction of the abdication guide shaft B250.

The step-off plate B630 is provided with a step-off chute B631, and a step-off slider B660 is fitted and slidably installed in the step-off chute B631, and the two ends of the step-off slider B660 and a roller shaft B260 It can be assembled by circular rotation, and the said roller shaft B260 has two, and the two ends of the other roller shaft B260 can be assembled with the step-off plate B630 respectively, and can be assembled in a circle. The output shaft of B330 is connected and fixed by a shaft coupling, and the roller motor B330 is installed on the motor mounting plate B670, and the motor mounting plate B670 is installed on the step-off plate B630. The roller shaft B260 is fitted with a roller B450 fixed thereon, and roller grooves B451 are arranged at the corresponding positions of the roller B450 and each tapered hole B531 respectively. The minimum diameter of the shaped hole B531. When in use, the two roller grooves B451 are used to rotate and roll one end of the cutting cable that needs to be drawn, so that the end of the cutting cable can pass through the corresponding tapered hole, thereby facilitating later drawing. Moreover, while rolling, it also plays an auxiliary role in conveying the cutting wire.

The two roller shafts B260 are respectively fitted with transmission gears B440 meshing with each other. When in use, the two roller shafts B260 realize synchronous rotation in opposite directions through the transmission gears. The displacement driving plate B640 is also connected and fixed to the displacement slider B660 through the displacement connecting plate B641. After the stretching trolley A used for drawing is clamped with the cutting cable, the motor for giving way is started, thereby driving the output shaft for giving way to rotate, and the output shaft for giving way is driven upward by screw drive plate B640, thereby driving the giving way slide The block B660 and the roller B450 above move up, which makes the two rollers no longer roll the cutting wire, so that the cutting wire is in the drawing processing state. In this embodiment, the roller B450 only plays the functions of tying and conveying.

The upper guide plate B512 and the lower guide plate B511 are respectively installed on the side away from the roller guide plate B520 of the roller B450, and the corresponding positions of the upper guide plate B512 and the lower guide plate B511 are provided with the guide hole B501 corresponding to the roller groove B451. B501 is used to guide the cutting wire into the corresponding roller groove B451. And in this embodiment, the roller guide plate B520 is divided into an upper roller guide plate and a lower roller guide plate, and the lower roller guide plate and the lower guide plate B511 are respectively fixed on the step-off plate B630. The lead-in plate B512 is respectively assembled and fixed through the second connecting block B652, the first connecting block B651 and the step-off connecting plate B641, so that the upper roller B450, the upper roller guide plate, and the upper lead-in plate B512 can be moved up synchronously, so that Prevent the upper roller B450, the upper roller guide plate, and the upper guide plate B512 from interfering with the movement of the cutting wire.

On the side of the stretching block B530 away from the roller guide plate B520, an extended orifice plate B540 is installed, and the extension orifice plate B540 is respectively provided with a drawing and holding hole B541 having the same diameter as the corresponding position of the smallest diameter end of each tapered hole. , the drawing holding hole B541 is used to continue to maintain the drawing shape through the drawing holding hole B541 after the cutting wire passes through the tapered hole, so as to ensure the drawing effect and reduce the rebound rate in the later stage.

Preferably, the lifting pallet B120 is further fixed with a supporting hole plate B150, and the supporting hole plate B150 is provided with a supporting hole B151, and the supporting hole B151 is directly opposite to the pressing channel, so as to guide the cutting wire into the pressing channel.

Referring to Fig. 3, in this embodiment, the stretching trolley A and the stretching mold B on the left side are respectively named No. 1, and the one on the right side is named No. 2, and their respective technical terms are passed through No. 1 and No. 2 distinguish.

When in use, first start the No. 1 lifting motor B310, so that the No. 1 lifting pallet B120 moves up until the No. 1 support hole B151 moves up to the coaxial with the corresponding No. 2 tapered hole B531; start the No. 2 roller motor B330 , pass the cutting wire 100 through the No. 2 roller groove B451 and enter into the No. No. 1 presses the channel until the No. 1 micro switch is triggered, and the No. 1 stretching trolley clamps the cutting cable tightly; then the No. The No. 1 roller moves upward to loosen the roller pressure on the cutting wire; start the No. 1 trolley motor A260, and the No. 1 steel wire rope drives the No. 1 trolley seat to move to the No. 1 trolley motor A260, thereby pulling the cutting wire; simultaneously starts No. 2 circulation pump.

After the drawing is completed (according to the standard that the motor stroke of the No. 1 trolley reaches the length of the cutting cable after drawing), the two ends of the cutting cable are respectively located on the No. 1 stretching trolley A and the No. 1 holding support plate; then start the No. 1 lifting motor respectively 1. No. 2 lifting motor, so that the states of No. 1 drawing die and No. 2 drawing die are exchanged; start No. 1 switching motor, so that the No. 1 tapered hole to be used is directly opposite or coaxial with No. 2 support hole B151; Start the No. 1 roller motor B330 and the No. 1 circulating pump, and the No. 1 stretching trolley A moves in reverse, so that the cutting wire is sent into the No. 1 roller for tying and then sent into the No. 1 tapered hole, and then passed out of No. 2 The support hole B151 then enters into the No. 2 clamping passage, and makes the No. 2 stretching trolley clamp this end of the cutting cable tightly. Stop the No. 1 roller motor, drive the No. 1 step-off motor, so that the No. 1 roller at the top moves up; start the No. 2 trolley motor, and continue to pull the cutting cable through the No. 1 tapered hole through the No. 2 stretching trolley until The cutting cable passes through the No. 2 support hole B151, enters into the No. 2 holding support hole, and stops the No. 2 trolley motor. Adjust the height state of the No. 1 drawing die and No. 2 drawing die again, and start the No. 2 switching motor, so that the other No. 2 tapered hole is coaxial or directly opposite to the No. 1 support hole B151, and reverse No. 2 to make way The motor resets the No. 2 roller, starts the No. 2 roller motor, and the No. 2 stretching trolley moves in reverse to input the cutting cable into another roller groove B451 of the No. 2 roller for reprocessing, so reciprocating. Therefore, the cutting cable can be stretched by pulling back and forth, which can not only increase the efficiency, but also reduce the volume of the equipment.

The parts of the present invention that are not described in detail are known technologies of those skilled in the art.

The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make many modifications and changes according to the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of the prior art shall be within the scope of protection defined by the claims.

Claims (8)

1. The utility model provides an automatic stretcher of double-end, characterized by: the cutting rope drawing device comprises a drawing die and a drawing trolley, wherein a plurality of tapered holes with gradually reduced diameters are formed in a drawing block of the drawing die, and the cutting rope penetrates through the tapered holes to complete drawing; the stretching trolley is used for clamping one end of the cutting rope so as to provide power for stretching the cutting rope; the two stretching dies are symmetrically arranged; the two stretching trolleys are also arranged and are respectively distributed on two sides of the two stretching moulds; the cutting rope is respectively pulled by the stretching trolleys at the two sides so as to gradually pass through each conical hole, so that the cutting rope is gradually stretched to a preset size;

the two drawing dies and the two rope pulling trolleys are all arranged on the bottom plate, a trolley guide rail, a shaft plate and a bottom plate guide seat are also arranged on the bottom plate, a bottom plate guide hole through which a cutting rope can pass is formed in the bottom plate guide seat, the trolley guide rail is clamped with a trolley sliding groove at the bottom of the small trolley seat and can be assembled in a sliding mode, the shaft plate and the wheel shaft can be assembled in a circumferential rotating mode, a guide wheel is sleeved on the wheel shaft, a steel wire rope is wound outside the guide wheel, two ends of the steel wire rope are respectively assembled and fixed with a front pull plate and a rear pull plate on the trolley seat, and one wheel shaft is connected with a trolley output shaft of a trolley motor;

the stretching die comprises a stretching bottom plate, a stretching top plate, stretching side plates and a flow guide pipe, wherein the stretching side plates are respectively arranged on the side surfaces of the stretching bottom plate and the stretching top plate, at least two lifting screws are arranged between the stretching bottom plate and the stretching top plate, and the lifting screws penetrate through a lifting supporting plate and are assembled with the lifting supporting plate in a screwing mode through threads;

the lifting support plate is provided with an adjusting bottom plate, the number of the flow guide pipes is two, the other ends of the two flow guide pipes are respectively communicated and fixed with a connecting hole on the connecting cover in a sealing manner, the connecting cover is arranged on one end of the pull rope block, and a flow guide groove is arranged in the connecting cover; the stretching block is respectively provided with a tapered hole, heat dissipation channels, a connecting channel and a liquid passing hole, two ends of the liquid passing hole are respectively communicated with the flow guide groove and one end of the heat dissipation channel, at least two heat dissipation channels are respectively arranged on the upper side and the lower side of the tapered hole, and the two heat dissipation channels are communicated through the connecting channel;

an extension orifice plate is arranged on one side of the stretching block, which is far away from the roller guide plate, and drawing and holding holes with the same diameter as the extension orifice plate are respectively arranged at the corresponding positions of the extension orifice plate and the minimum diameter ends of the conical holes; the lifting support plate is further fixed with a support hole plate, support holes are formed in the support hole plate and are opposite to the clamping and pressing channel, and therefore the cutting rope is guided into the clamping and pressing channel.

2. The double-headed automatic stretching machine as claimed in claim 1, wherein: the adjusting bottom plate is fixedly assembled with the adjusting top plate through a first vertical plate, a second vertical plate, a third vertical plate and a fourth vertical plate respectively, the first vertical plate, the second vertical plate and the third vertical plate are fixedly assembled with two retaining pipes respectively, one end of one retaining pipe is communicated with an outlet of a circulating pump, an inlet of the circulating pump is communicated with cooling liquid, and one end of the other retaining pipe is communicated with a device for storing the cooling liquid; one end of each of the two flow guide pipes is inserted into the other end of each of the two holding pipes and can axially slide and be hermetically assembled with the holding pipes.

3. The double-headed automatic stretching machine as claimed in claim 1, wherein: the diameter of the conical holes is gradually reduced from the end with the larger diameter to the end with the smaller diameter, and the conical holes are distributed in a way that the diameter is gradually reduced along the length direction of the stretching block; a stretching sliding rail is fixed at the bottom of the stretching block, the stretching sliding rail is clamped with a stretching sliding groove and can be assembled in a sliding mode, and the stretching sliding groove is formed in the adjusting bottom plate; the top of the stretching block is further fixed with a driving block, the driving block and the switching screw rod are assembled in a threaded screwing mode, two ends of the switching screw rod are assembled with the third vertical plate and the fourth vertical plate in a circumferential rotating mode respectively, and one end of the switching screw rod penetrates out of the fourth vertical plate and then is connected and fixed with an output shaft of the switching motor.

4. The double-headed automatic stretching machine as claimed in claim 1, wherein: the side surface of the stretching block is fixedly assembled with the two abdicating plates through the roller guide plate, and the roller guide plate is provided with roller guide holes corresponding to the tapered holes one by one; the tops of the two yielding plates are respectively assembled and fixed with the roller top plate, a yielding motor frame is mounted on the roller top plate, a yielding motor is mounted on the yielding motor frame, a yielding output shaft of the yielding motor penetrates through a yielding driving plate and is screwed and assembled with the yielding driving plate through threads, the yielding driving plate is sleeved on a yielding guide shaft, two ends of the yielding guide shaft are respectively fixed on the yielding motor frame and the roller top plate, and the yielding driving plate can move along the axial direction of the yielding guide shaft; the abdication drive plate is fixedly assembled with the abdication sliding block through the abdication connecting plate;

the yielding plate is provided with a yielding chute, a yielding slide block is clamped and slidably mounted in the yielding chute, the yielding slide block and two ends of a roller rotating shaft can be circumferentially and rotatably assembled, the two roller rotating shafts are provided, two ends of the other roller rotating shaft are respectively and circumferentially and rotatably assembled with the yielding plate, one end of the roller rotating shaft penetrates through one of the yielding plates and then is fixedly connected with an output shaft of a roller motor through a coupler, the roller motor is mounted on a motor mounting plate, and the motor mounting plate is mounted on the yielding plate; and the roller rotating shaft is fixedly sleeved with a roller, and the roller is provided with roller grooves at the positions corresponding to the conical holes respectively.

5. The double-headed automatic stretching machine as claimed in claim 1, wherein: an electrical box is mounted on the small vehicle seat, a tension guide rail is mounted at the top of the electrical box, the tension guide rail is clamped with a tension sliding groove and can be assembled in a sliding mode, the tension sliding groove is formed in a tension base, and the front pull plate and the tension base are respectively assembled and fixed with two ends of a tension sensor; the tension base is further provided with a clamping shell and a front end plate, and a first clamping chute and a second clamping chute are respectively arranged in the clamping shell;

the cutting device comprises a clamping shell, a front end plate and a trigger block, wherein the clamping shell, the front end plate and the trigger block are provided with corresponding parts respectively, a clamping and pressing channel capable of enabling a cutting rope to penetrate through is formed in the clamping shell, the front end plate and the trigger block, a movable clamping block is arranged in a first clamping sliding groove in a clamping and sliding mode, a clamping block part and a guiding part are arranged on the movable clamping block respectively, a magnet part is arranged on the top of the movable clamping block, the magnet part is made of permanent magnets, the bottom of the guiding part penetrates through a fixed clamping block respectively and then is fixedly assembled with a connecting part, and the fixed clamping block is arranged at the bottom of the clamping and pressing channel and below the clamping block part.

6. The double-headed automatic stretching machine as claimed in claim 5, wherein: install the detection box in the chucking shell, detect the inside hollow detection chamber that is of box, detect the chamber and be close to and install micro-gap switch on the preceding arm-tie one side, and detect intracavity block, slidable and install the trigger block, the trigger block is provided with the trigger arch on one side of micro-gap switch's trigger end, triggers protruding outside cover and is equipped with trigger spring, and the trigger spring other end pastes tightly with the inner wall that detects the chamber.

7. The double-headed automatic stretching machine as claimed in claim 5, wherein: a plurality of locking grooves are formed in the side wall of the guide part, and the locking grooves are clamped and assembled with locking protrusions on the locking plate; the locking plate is fixed on one end of the locking rod, the locking plate is clamped with the second clamping sliding groove and can be assembled in a sliding mode, the other end of the locking rod is sleeved with a locking spring and then is installed in the unlocking sliding groove and is assembled and fixed with the unlocking magnet block, the unlocking sliding groove is installed in the unlocking cover, and the unlocking cover is installed on the clamping shell and the front end plate; the locking protrusion is provided with an inclined surface part and a straight surface part respectively, and the inclined surface part is positioned above the straight surface part.

8. The double-ended automatic stretching machine according to claim 7, characterized in that: an auxiliary support is further installed at the position, close to the stretching die, of the bottom plate, a wireless charging transmitter and an unlocking soft iron block are installed on two sides of the auxiliary support respectively, an upper locking soft iron block is installed at the top of the auxiliary support and fixed on the unlocking soft iron column and the upper locking soft iron column respectively, and a second coil and a first coil are sleeved outside the unlocking soft iron column and the upper locking soft iron column respectively; the second coil is connected with direct current to generate a magnetic field, so that the unlocking soft iron column and the locking soft iron column are magnetized, and the unlocking soft iron block generates a magnetic field which is the same as that of the unlocking magnet block; the first coil is connected with direct current to magnetize the upper locking soft iron block, so as to generate a magnetic field opposite to the magnetic field of the magnet part.

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