CN211941807U

CN211941807U - Connecting rod lock shaft mounting device of large-scale injection molding machine

Info

Publication number: CN211941807U
Application number: CN201922476451.3U
Authority: CN
Inventors: 潘晓敏; 郑凯予; 李旭东; 蒋勇; 邱海波
Original assignee: Haitian Plastics Machinery Group
Current assignee: Haitian Plastics Machinery Group
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-11-17
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a connecting rod lock shaft mounting device of a large-scale injection molding machine, which comprises a positioning platform, a connecting rod lock shaft mounting device and a control device; connecting rod lock axle installation device includes the second base, be equipped with longitudinal sliding's third sliding seat on the second base, be equipped with the fourth sliding seat of lateral sliding on the third sliding seat, be equipped with vertical gliding fifth sliding seat on the fourth sliding seat, it is provided with the rotation seat to rotate on the fifth sliding seat, it rotates seat pivoted rotation pneumatic cylinder to be equipped with the drive on the fifth sliding seat, be equipped with lock axle sliding tray on the rotation seat, lock axle sliding tray tip is equipped with pneumatic jump bit, it is provided with the impact bar to slide between pneumatic jump bit and the lock axle sliding tray. The connecting rod lock shaft mounting device for the large-scale injection molding machine can realize manual alignment and automatic punching and mounting of the connecting rod lock shaft, improves assembly efficiency and reduces labor intensity of workers.

Description

Connecting rod lock shaft mounting device of large-scale injection molding machine

Technical Field

The utility model belongs to the technical field of injection molding machine assembly quality, especially a large-scale injection molding machine connecting rod lock axle installation device.

Background

The typical structure of an injection molding machine generally consists of a safety protection door, a mold clamping mechanism, an injection mechanism, a hydraulic transmission mechanism, a lubricating mechanism, a machine body part and an electric appliance control part. The mold closing mechanism generally comprises three templates and four parallel pull rods which are inserted into the three templates, the weight is large, according to different types of injection molding machines, the weight of a single template is about 50 tons, the weight of a single pull rod is about 10 tons, and the assembly difficulty is high.

The traditional assembly process is as follows: 1) a worker lifts the tail plate to a fixed position by using tools such as a travelling crane, then lifts the middle plate and the head plate to positions corresponding to the tail plate respectively, and then fixes the head plate, the middle plate and the tail plate; 2) hoisting a pull rod by using a travelling crane, cleaning the pull rod, smearing lubricating oil, manually passing the pull rod through pull rod holes of a tail plate, a middle plate and a head plate in sequence and slowly under the assistance of the travelling crane, wherein in the process of inserting, because the hole positions of the pull rod holes in the head plate, the middle plate and the tail plate, which are opposite in position, are possibly not concentric, the positions of three templates need to be finely adjusted continuously in the manual punching process, and meanwhile, in the process of punching, a plurality of assembling workers are required to cooperate and cooperate, the end part of the pull rod is continuously knocked by a copper rod so as to provide power for punching of the pull rod until the punching of the pull rod is completed; 3) repeating the step 2 until all four pull rods penetrate into pull rod holes corresponding to the three templates; 4) manually selecting a die adjusting nut on the threaded section of the pull rod; 5) then all pack into the connecting rod on medium plate and tailboard to with the lock shaft hole alignment of connecting rod, then the rethread strikes the junction of inserting the lock axle in the lock shaft hole. The assembly of the traditional injection molding machine mold closing mechanism is basically completed manually, the labor intensity of workers is high, and the assembly efficiency is low.

The installation of the connecting rod lock shaft of the injection molding machine is completed by manual operation, and the efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model discloses it is not enough to prior art, provide a large-scale injection molding machine connecting rod lock axle installation device, this kind of large-scale injection molding machine connecting rod lock axle installation device can realize the manual counterpoint and the automatic dress of dashing of connecting rod lock axle, improves assembly efficiency, reduces workman intensity of labour.

In order to solve the technical problem, the utility model discloses a following technical scheme can solve: a connecting rod lock shaft mounting device of a large-scale injection molding machine comprises a positioning platform, a connecting rod lock shaft mounting device and a control device; the connecting rod lock shaft mounting device comprises a second base, wherein a second longitudinal slide rail is arranged on the second base, a third slide seat is arranged on the second longitudinal slide rail, a fourth hydraulic cylinder for driving the third slide seat to slide is arranged on the second base, a second transverse slide rail is arranged on the third slide seat, a fourth slide seat is arranged on the second transverse slide rail, a fifth hydraulic cylinder for driving the fourth slide seat to slide is arranged on the third slide seat, a second vertical slide rail is arranged on the fourth slide seat, a fifth slide seat is arranged on the second vertical slide rail, a sixth hydraulic cylinder for driving the fifth slide seat to slide is arranged on the fourth slide seat, a rotating seat is rotatably arranged on the fifth slide seat, a rotating hydraulic cylinder for driving the rotating seat to rotate is arranged on the fifth slide seat, and a lock shaft slide groove is arranged on the rotating seat, the pneumatic impact hammer is arranged at the end part of the lock shaft sliding groove, and an impact rod is arranged between the pneumatic impact hammer and the lock shaft sliding groove in a sliding mode. The connecting rod lock shaft mounting device for the large-scale injection molding machine can realize manual alignment and automatic punching and mounting of the connecting rod lock shaft, improves assembly efficiency and reduces labor intensity of workers.

In the above technical solution, preferably, the connecting rod lock shaft mounting devices are disposed on both sides of the positioning platform.

In the above technical scheme, preferably, the positioning platform is provided with a tail plate positioning block, a middle plate positioning block and a head plate positioning block, and the middle plate positioning block is slidably connected with the positioning platform through a fourth longitudinal slide rail. Adopt this structure to make the medium plate locating piece can remove to make things convenient for the connecting rod installation between medium plate and the tailboard.

In the above technical solution, preferably, the end of the lock shaft sliding groove is provided with a top block. After the pneumatic impact hammer hammers the lock shaft into the lock shaft hole of the connecting rod, the lock shaft cannot be pushed into the lock shaft hole due to the short stroke of the pneumatic impact hammer, and the lock shaft is pushed into the lock shaft hole through the movement of the fifth sliding seat and the matching of the top block.

Compared with the prior art, the utility model, following beneficial effect has: the connecting rod lock shaft mounting device for the large-scale injection molding machine can realize manual alignment and automatic punching and mounting of the connecting rod lock shaft, improves assembly efficiency and reduces labor intensity of workers.

Drawings

Fig. 1 is a schematic view of the overall structure of the embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a positioning platform according to an embodiment of the present invention.

Fig. 3 is a schematic structural view of a pull rod stringing device according to an embodiment of the present invention.

Fig. 4 is a partially enlarged view of a portion a in fig. 3.

Fig. 5 is a schematic structural view of an automatic screwing device for adjusting the die nut in the embodiment of the present invention.

Fig. 6 is a schematic structural view of a sixth sliding seat in an embodiment of the present invention.

Fig. 7 is a schematic structural diagram of a positioning mechanism in an embodiment of the present invention.

Fig. 8 is a schematic sectional view of the positioning mechanism of the embodiment of the present invention after being installed.

Fig. 9 is a schematic cross-sectional structural view of the positioning mechanism in the embodiment of the present invention in a positioning state after being installed.

Fig. 10 is a schematic structural diagram of an exemplary calibration device according to the present invention.

Detailed Description

The invention will be described in further detail with reference to the following drawings and specific embodiments: referring to fig. 1 to 10, a connecting rod lock shaft mounting device for a large-scale injection molding machine comprises a positioning platform 1, a pull rod serial mounting device 2, a die adjusting nut automatic screwing device 3, a connecting rod lock shaft mounting device 4 and a control device, wherein the pull rod serial mounting device 2 comprises a first base 21, a plurality of first transverse slide rails 22 are arranged on the first base 21, a first slide seat 23 is arranged on the first transverse slide rails 22, a first hydraulic cylinder 24 for driving the first slide seat 23 to slide is arranged on the first base 21, a first vertical slide rail 25 is arranged on the side surface of the first slide seat 23, a second slide seat 26 is arranged on the first vertical slide rail 25 in a sliding manner, a second hydraulic cylinder 27 for driving the second slide seat 26 to slide is arranged on the first slide seat 23, a pull rod pushing mechanism 28 is arranged on at least one side of the second slide seat 26, the pull rod pushing mechanism 28 comprises a first longitudinal slide rail 29 arranged on the second slide seat 26, a sliding plate 210 is slidably arranged on the first longitudinal sliding rail 29, a third hydraulic cylinder 211 for driving the sliding plate 210 to slide is arranged on the second sliding seat 26, a group of guide wheels 212 parallel to the sliding plate 210 is arranged on the second sliding seat 26, a limiting mechanism 213 for pushing the pull rod 5 to move is arranged on the sliding plate 210, and displacement sensors are arranged in the first hydraulic cylinder 24, the second hydraulic cylinder 27 and the third hydraulic cylinder 211; the automatic die adjusting nut screwing device 3 comprises a second base 31, a second longitudinal slide rail 32 is arranged on the second base 31, a third slide seat 33 is arranged on the second longitudinal slide rail 32, a fourth hydraulic cylinder 34 for driving the third slide seat 33 to slide is arranged on the second base 31, a second transverse slide rail 35 is arranged on the third slide seat 33, a fourth slide seat 36 is arranged on the second transverse slide rail 35, a fifth hydraulic cylinder 37 for driving the fourth slide seat 36 to slide is arranged on the third slide seat 33, a second vertical slide rail 38 is arranged on the fourth slide seat 36, a fifth slide seat 39 is arranged on the second vertical slide rail 38, a sixth hydraulic cylinder 310 for driving the fifth slide seat 39 to slide is arranged on the fourth slide seat 36, a third longitudinal slide rail 311 is arranged on the fifth slide seat 39, and a sixth slide seat 312 is arranged on the third longitudinal slide rail 311, a first cylinder 313 for driving the sixth sliding seat 312 to slide is arranged on the fifth sliding seat 39, a pair of parallel rotating rollers 314 for placing the die adjusting nut 6 is arranged on the sixth sliding seat 312, a third transverse slide rail 315 is arranged on the sixth sliding seat 312, a seventh sliding seat 316 is arranged on the third transverse slide rail 315, a positioning mechanism 317 is arranged on the seventh sliding seat 316, a hydraulic motor 318 is arranged on the seventh sliding seat 316, and a gear 319 is arranged on an output shaft of the hydraulic motor 318; the connecting rod lock shaft installation device 4 comprises a second base 31, a second longitudinal slide rail 32 is arranged on the second base 31, a third slide seat 33 is arranged on the second longitudinal slide rail 32, a fourth hydraulic cylinder 34 for driving the third slide seat 33 to slide is arranged on the second base 31, a second transverse slide rail 35 is arranged on the third slide seat 33, a fourth slide seat 36 is arranged on the second transverse slide rail 35, a fifth hydraulic cylinder 37 for driving the fourth slide seat 36 to slide is arranged on the third slide seat 33, a second vertical slide rail 38 is arranged on the fourth slide seat 36, a fifth slide seat 39 is arranged on the second vertical slide rail 38, a sixth hydraulic cylinder 310 for driving the fifth slide seat 39 to slide is arranged on the fourth slide seat 36, a rotating seat 41 is rotatably arranged on the fifth slide seat 39, and a rotating hydraulic cylinder 42 for driving the rotating seat 41 to rotate is arranged on the fifth slide seat 39, a lock shaft sliding groove 43 is formed in the rotating seat 41, a pneumatic impact hammer 44 is arranged at the end of the lock shaft sliding groove 43, and an impact rod 45 is arranged between the pneumatic impact hammer 44 and the lock shaft sliding groove 43 in a sliding mode. This kind of large-scale injection molding machine connecting rod lock axle installation device can realize the automatic alignment and the assembly of pull rod, transfers the automatic alignment and the automatic dress of screwing of mould screw to and the manual alignment and the automatic dress of dashing of lock axle, improve assembly efficiency, reduce workman intensity of labour.

The sliding plate 210 is provided with a plurality of evenly distributed limiting mechanisms 213, the limiting mechanisms 213 comprise rotating cylinders 214 and rotating arms 215, and the rotating arms 215 have limiting positions located at the top of the pull rod 5 and furled positions located at the outer side of the top of the pull rod 5. By adopting the structure, the multi-section feeding conveying can be realized through the sliding fit of the limiting mechanism and the sliding plate, and the single feeding length is reduced, so that the stroke of the third hydraulic cylinder is effectively reduced, and the length of the whole machine is reduced. In this embodiment, the sliding plate is provided with five rotating cylinders which are uniformly distributed.

And a top rod 216 is arranged on the side surface of the rotating cylinder 214 closest to the positioning platform 1. By adopting the structure, the space on the side surface of the rotary cylinder closest to the positioning platform is effectively utilized, so that the last operation of pushing the pull rod is completed by the push rod, one rotary cylinder is saved, and the length of the sliding plate is shortened.

A gap 320 is formed in the middle of the pair of rotating rollers 314, and the gear 319 is located within the distance between the gaps 320. By adopting the structure, when the die adjusting nut is arranged on the rotating roller, the gear on the die adjusting nut can be axially limited in the notch, so that the die adjusting nut is prevented from axially sliding.

The second sliding seat 26 is provided with a pull rod pushing mechanism 28 on both sides. By adopting the structure, the stroke of the first sliding seat is reduced, so that the volume of the whole machine is reduced.

And the two sides of the positioning platform 1 are provided with the automatic die adjusting nut screwing device 3.

And the connecting rod lock shaft mounting devices 4 are arranged on two sides of the positioning platform 1.

The positioning platform 1 is provided with a tail plate positioning block 11, a middle plate positioning block 12 and a head plate positioning block 13, and the middle plate positioning block 12 is slidably connected with the positioning platform 1 through a fourth longitudinal slide rail 14. Adopt this structure to make the medium plate locating piece can remove to make things convenient for the connecting rod installation between medium plate and the tailboard.

The positioning platform 1 is close to the first base 21 side is provided with the constant head tank 15, can dismantle on the constant head tank 15 and be provided with calibrating device 7, calibrating device 7 include mutually perpendicular's crossbeam 71 and erect roof beam 72 and with constant head tank 15 complex locating piece 73, crossbeam 71 with erect and all be equipped with digital display slide caliper 74 on the roof beam 72. By adopting the structure, the positioning platform and the pull rod serial device can be aligned when the integrated machine is used for the first time, the initial coordinate position of the pull rod serial device is calibrated, and the accurate serial installation of the pull rod is ensured.

The end of the lock shaft sliding groove 43 is provided with a top block 46. After the pneumatic impact hammer hammers the lock shaft into the lock shaft hole of the connecting rod, the lock shaft cannot be pushed into the lock shaft hole due to the short stroke of the pneumatic impact hammer, and the lock shaft is pushed into the lock shaft hole through the movement of the fifth sliding seat and the matching of the top block.

The positioning mechanism 317 comprises a through hole 3171, a guide sleeve 3172, a positioning rod 3173, a spring 3174, a U-shaped positioning block 3175 and a nut 3176 which are arranged on the seventh sliding seat 316, the guide sleeve 3172 is fixed in the through hole 3171, the fixing structure is that the lower end of the guide sleeve 3172 is larger than the upper end, the U-shaped positioning block 3175 is fixed on the seventh sliding seat 316, the nut 3176 is in threaded fit with the upper end of the guide sleeve 3172, the guide sleeve 3172 is fixed on the U-shaped positioning block 3175 through the lower end of the nut 3176 and the lower end of the guide sleeve 3172, the positioning rod 3173 is arranged in the guide sleeve 3172 in a penetrating way, the bottom of the positioning rod 3173 is provided with a locking block 3177, the cross section of the locking block 3177 is larger than the guide sleeve 3172, the spring 3174 is arranged between the locking block 3177 and the guide sleeve 3172, the top of the guide sleeve 3172 is provided with a shallow groove 3178 and a deep groove 3179, the upper end of the positioning, a gap is formed between the locking block 3177 and the sixth sliding seat 312, and when the limiting rod 31710 is located in the deep groove 3179, the locking block 3177 abuts against the sixth sliding seat 312, so that the positioning effect is achieved.

The working process of the large-scale injection molding machine assembly all-in-one machine comprises the following steps: 1. respectively placing a tail plate, a middle plate and a head plate of the injection molding machine on a tail plate positioning block, a middle plate positioning block and a head plate positioning block to align and position the pull rod through hole; 2. carrying out a calibration operation: the method comprises the steps that a positioning block of a calibration device is matched with a positioning groove to fix the calibration device, a pull rod is placed on a group of guide wheels, adjustment is carried out through sliding of a first sliding seat and a second sliding seat, a rotating arm abuts against the end portion of the pull rod, the pull rod penetrates into the calibration device through movement of a sliding plate, the position of a zero point of a coordinate is found through reading of a digital display vernier caliper and adjustment of the positions of the first sliding seat and the second sliding seat, and calibration operation only needs to be carried out once when the assembly all-in-one machine is installed for the first time; 3. the pull rod is put on a group of guide wheels and penetrates into pull rod through holes of the tail plate, the middle plate and the head plate through the movement of the first sliding seat and the second sliding seat and the pushing of the pull rod pushing mechanism; 4. a gear ring is processed on the outer side of the die adjusting nut, the width of the gear ring corresponds to the width of a notch in a rotating roller, a cylindrical sleeve ring is sleeved on one side of the die adjusting nut and then placed on the rotating roller (the cylindrical sleeve ring is sleeved to increase the contact length with the rotating roller and prevent the die adjusting nut from inclining), the gear ring is placed in the notch, a seventh sliding seat is moved to enable a gear to be meshed with the gear ring and is fixed on a sixth sliding seat through a positioning mechanism, then the third sliding seat, the fourth sliding seat, the fifth sliding seat and the sixth sliding seat are adjusted to enable the die adjusting nut to be sleeved on a pull rod, the die adjusting nut is screwed into a threaded section of the pull rod through pushing of a first air cylinder and rotation of a hydraulic motor, and then retreating operation is carried out and the cylindrical sleeve ring is taken down. 5. The connecting rod is installed on the tail plate and the middle plate, the lock shaft hole in the connecting rod is aligned, the lock shaft is placed in the lock shaft sliding groove, the third sliding seat, the fourth sliding seat, the fifth sliding seat and the rotating seat are adjusted to align the lock shaft to the lock shaft hole, the pneumatic impact hammer is started to hammer the lock shaft into the lock shaft hole, the position is retreated to adjust the lock shaft, the ejecting block is aligned to the hammer into the lock shaft hole, and the lock shaft is completely inserted into the lock shaft hole through the thrust of the fifth hydraulic cylinder.

Claims

1. The utility model provides a large-scale injection molding machine connecting rod lock axle installation device which characterized in that: comprises a positioning platform (1), a connecting rod lock shaft mounting device (4) and a control device; the connecting rod lock shaft mounting device (4) comprises a second base (31), a second longitudinal sliding rail (32) is arranged on the second base (31), a third sliding seat (33) is arranged on the second longitudinal sliding rail (32), a fourth hydraulic cylinder (34) for driving the third sliding seat (33) to slide is arranged on the second base (31), a second transverse sliding rail (35) is arranged on the third sliding seat (33), a fourth sliding seat (36) is arranged on the second transverse sliding rail (35), a fifth hydraulic cylinder (37) for driving the fourth sliding seat (36) to slide is arranged on the third sliding seat (33), a second vertical sliding rail (38) is arranged on the fourth sliding seat (36), a fifth sliding seat (39) is arranged on the second vertical sliding rail (38), a sixth hydraulic cylinder (310) for driving the fifth sliding seat (39) to slide is arranged on the fourth sliding seat (36), rotate on fifth sliding seat (39) and be provided with rotation seat (41), be equipped with the drive on fifth sliding seat (39) rotate seat (41) pivoted and rotate pneumatic cylinder (42), be equipped with lock axle sliding tray (43) on rotation seat (41), lock axle sliding tray (43) tip is equipped with pneumatic jump bit (44), pneumatic jump bit (44) with it is provided with impact bar (45) to slide between lock axle sliding tray (43).

2. The connecting rod lock shaft mounting device of a large injection molding machine according to claim 1, wherein: and the connecting rod lock shaft mounting devices (4) are arranged on two sides of the positioning platform (1).

3. The connecting rod lock shaft mounting device of a large injection molding machine according to claim 1, wherein: the positioning platform (1) is provided with a tail plate positioning block (11), a middle plate positioning block (12) and a head plate positioning block (13), and the middle plate positioning block (12) is connected with the positioning platform (1) in a sliding mode through a fourth longitudinal sliding rail (14).

4. The connecting rod lock shaft mounting device of a large injection molding machine according to claim 1, wherein: and the end part of the lock shaft sliding groove (43) is provided with a top block (46).