CN112519191A

CN112519191A - Injection molding bender

Info

Publication number: CN112519191A
Application number: CN201911377915.3A
Authority: CN
Inventors: 吴斯炯
Original assignee: Wuxi Sanjie Medical Technology Co ltd
Current assignee: Wuxi Sanjie Medical Technology Co ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2021-03-19

Abstract

The invention discloses an injection molding bending machine which comprises a rack, a synchronous transplanting device, a material receiving device, a heating device and a bending device, wherein the material receiving device, the heating device and the bending device are sequentially arranged, a workbench is arranged on the rack, the heating device and the bending device are arranged on the workbench, the synchronous transplanting device comprises a first guide rail erected above the workbench of the rack and a transplanting clamping mechanism capable of moving left and right along the first guide rail, two ends of the first guide rail extend to the positions above the material receiving device and the bending device respectively, and the transplanting clamping mechanism moves along the first guide rail to sequentially move injection molding pieces at the position of the material receiving device to the heating device and the bending device. The injection molding bending machine provided by the invention is reasonable in design, can be used for receiving, synchronously transplanting, heating and softening and bending and shaping a plurality of pipe fittings at a time, adopts production line type processing, realizes automatic operation, saves labor, has high product qualification rate, avoids bringing risks to operators in the manufacturing process, and greatly improves the working efficiency.

Description

Injection molding bender

Technical Field

The invention relates to the technical field of bending production equipment, in particular to an injection molding bending machine.

Background

In machining, pipes made of various materials are often required to be bent at a certain angle. The bending of the hollow pipe fitting made of polyvinyl chloride is the most common processing requirement in the medical appliance industry at present. The existing processing method is that after a linear hollow pipe made by an injection molding machine is taken down by a manipulator, a pipe fitting is manually taken and placed in a heating oven for preheating until the pipe fitting is softened, at the moment, an operator places the softened pipe fitting in a bending mold, the bending mold is a group of clamping groove type shaping molds with different radians and different pipe diameters, the bending mold is fixed at a bending angle and then stands until the pipe fitting is naturally cooled, and air blower equipment can also be used for aiming at the pipe fitting to ventilate and accelerate the cooling of the pipe fitting. Though the required equipment of injection molding pipe fitting of bending through above-mentioned mode is comparatively simple, can't realize automaticly, can't satisfy the demand of high-speed production, and the single pipe fitting of bending quantity is limited, and production efficiency is low, and required manual work is more, and manual operation leads to the cost high at most, and the yields of product is low, and manual operation also easily leads to the fact the injury for operating personnel.

Disclosure of Invention

In order to solve the problems, the invention provides the injection molding bending machine integrating material receiving, heating and bending, which realizes automatic operation, can bend a plurality of products at one time and greatly improves the working efficiency.

According to one aspect of the invention, the injection molding bending machine comprises a rack, a synchronous transplanting device, a material receiving device, a heating device and a bending device, wherein the material receiving device, the heating device and the bending device are sequentially arranged, a workbench is arranged on the rack, the heating device and the bending device are arranged on the workbench, the synchronous transplanting device comprises a first guide rail and a transplanting clamping mechanism, the first guide rail is erected above the workbench of the rack, the transplanting clamping mechanism can move left and right along the first guide rail, two ends of the first guide rail extend to the positions above the material receiving device and the bending device respectively, and the transplanting clamping mechanism moves along the first guide rail to sequentially move injection moldings at the material receiving device to the heating device and the bending device. Therefore, the injection molding machine is used for manufacturing long linear type hollow pipe fittings, the manipulator is used for grabbing a plurality of hollow pipe fittings at one time, the bottoms of the pipe fittings are inserted into the material receiving device, the transplanting clamping mechanism moves to the position above the material receiving device along the first guide rail, after the transplanting clamping mechanism clamps the upper portions of the pipe fittings, the material receiving device loosens the bottoms of the pipe fittings, the transplanting clamping mechanism clamps the pipe fittings to move to the working position of the heating device along the first guide rail, the heating device heats and softens the pipe fittings, and after the pipe fittings are heated and softened, the transplanting clamping mechanism clamps the pipe fittings to move to the bending device along the; this injection molding bender has realized having realized automatic operation from connecing material, heat softening, bending in an organic whole, has reduced the manual work, has improved work efficiency greatly.

In some embodiments, the receiving device comprises a receiving clamping jaw, a receiving clamping jaw air cylinder, a displacement air cylinder, a track and a lifting mechanism, the track is connected to the lifting mechanism, a moving plate is arranged on the track, second guide rails are arranged on two sides of the moving plate, the receiving clamping jaw air cylinder is installed on the moving plate and connected with the receiving clamping jaw, the receiving clamping jaw is provided with two pieces and is opened and closed in opposite directions along the second guide rails through second sliders, the displacement air cylinder is installed on the track, and a telescopic rod of the displacement air cylinder is connected with. Therefore, in a material receiving area, a material receiving clamping jaw cylinder drives a material receiving clamping jaw to close the bottom of a clamping pipe fitting, a displacement cylinder drives a movable plate to slide to one side close to a first guide rail along a rail, the material receiving clamping jaw and the material receiving clamping jaw cylinder move along the movable plate, a transplanting clamping mechanism moves to the position above the material receiving clamping jaw along the first guide rail, a lifting mechanism drives the rail and all parts above the rail to move upwards, the transplanting clamping mechanism clamps the upper portion of a pipe body, the material receiving clamping jaw cylinder drives the material receiving clamping jaw to open and loosen the bottom of the pipe body after the upper portion of the pipe body is clamped, the transplanting clamping mechanism continues to clamp the pipe fitting to move to a heating device along the first guide rail.

In some embodiments, the two material receiving clamping jaws are respectively a fixed material receiving clamping jaw and a movable material receiving clamping jaw, the fixed material receiving clamping jaw is fixed on the movable plate, two ends of the movable material receiving clamping jaw are mounted on the second guide rail through the second sliding block, the movable material receiving clamping jaw is connected with the telescopic rod of the material receiving clamping jaw air cylinder, and the opposite surfaces of the fixed material receiving clamping jaw and the movable material receiving clamping jaw are respectively provided with a plurality of semicircular clamping grooves. Therefore, the sizes of semicircular clamping grooves on opposite surfaces of the fixed material receiving clamping jaw and the movable material receiving clamping jaw are set according to the diameter of a pipe to be clamped, the material receiving clamping jaw with the proper size is selected and replaced according to pipes of different specifications, the pipe wall of the pipe to be clamped leans against the inner side wall of the fixed material receiving clamping jaw, and the material receiving clamping jaw cylinder drives the movable material receiving clamping jaw to move along the second guide rail, so that the movable material receiving clamping jaw and the fixed material receiving clamping jaw are closed to clamp the pipe; the semicircular clamping grooves are provided with a plurality of grooves, the specific number can be determined according to the number of single bending requirements, and the injection molding bending machine can carry out clamping and transferring of a plurality of pipe fittings at a single time through the material receiving clamping jaw, so that the working efficiency is greatly improved.

In some embodiments, the lifting mechanism includes a lifter, a third guide rail, a support frame, and a back plate, the back plate is fixed to the frame, the third guide rail is vertically installed on the back plate, the third guide rail is provided with a third slider, the support frame is connected to the third slider, and the lifter and the top of the support frame are connected to the rail. Therefore, the whole elevator driving track moves up and down, the third sliding block moves up and down along the third guide rail in the moving process, and meanwhile, the support frame constantly supports against the track to play a supporting role, so that the up-and-down moving stability can be ensured.

In some embodiments, the synchronous transplanting device further comprises a belt and two rotating wheels, a support is arranged on the workbench, a base plate is arranged on the support, a first guide rail is arranged on the base plate, the two rotating wheels are arranged at the left end and the right end of the base plate, the teeth of the rotating wheels are arranged in the vertical array of the periphery of the rotating wheels, the belt is an annular ring with the teeth of the rotating wheels, the belt is sleeved on the two rotating wheels, one rotating wheel is connected with a driving motor, a first sliding block is arranged on the first guide rail, a connecting plate is connected onto the first sliding block, one end of the connecting plate is connected with the belt, and. From this, driving motor drive runner rotates, and then drives the removal of belt, and even board on the first slider moves along the belt along first guide rail, and the transplantation fixture of even board other end moves thereupon.

In some embodiments, transplant fixture includes the displacement clamping jaw, displacement clamping jaw cylinder and displacement board, the displacement board is connected with even board, the displacement clamping jaw includes fixed displacement clamping jaw and activity displacement clamping jaw, and be located the below of displacement board, the facies of fixed displacement clamping jaw and activity displacement clamping jaw all is equipped with a plurality of semi-circular draw-in grooves, fixed displacement clamping jaw is fixed in the displacement board, the activity displacement clamping jaw is connected with the telescopic link of displacement clamping jaw cylinder, the bottom of displacement board is equipped with the fourth guide rail, the activity displacement clamping jaw passes through the fourth slider and connects in the fourth guide rail. From this, the semi-circular draw-in groove quantity of displacement clamping jaw is the same with the semi-circular draw-in groove quantity of connecing the material clamping jaw, and when needs centre gripping pipe fitting upper portion, the pipe wall on pipe fitting upper portion leans on the inside wall of fixed displacement clamping jaw, and displacement clamping jaw cylinder drive activity displacement clamping jaw removes along the fourth guide rail for the centre gripping on pipe fitting upper portion is accomplished to movable displacement clamping jaw and fixed displacement clamping jaw closure.

In some embodiments, the transplanting clamping mechanisms are provided in two sets, the left side and the right side of the connecting plate are respectively connected with one set of transplanting clamping mechanisms, when the material receiving clamping jaw moves to a position close to the first guide rail along the rail, the central distance between the material receiving clamping jaw and the heating device is the same as that between the two sets of transplanting clamping mechanisms, and the central distance between the heating device and the bending device is also the same as that between the two sets of transplanting clamping mechanisms. Therefore, by arranging the two groups of transplanting clamping mechanisms, when the displacement clamping jaws of one group of transplanting clamping mechanisms are positioned above the material receiving device to clamp the pipe fittings in the material receiving area, the displacement clamping jaws of the other group of transplanting clamping mechanisms clamp the pipe fittings on the heating device and simultaneously heat and soften the pipe fittings; when the displacement clamping jaws of one group of transplanting clamping mechanisms move to the position above the heating device, the displacement clamping jaws of the other group of transplanting clamping mechanisms are positioned above the working position of the bending device; through the arrangement mode of the two groups of transplanting clamping mechanisms, the work of two stations can be simultaneously carried out, and the work efficiency is greatly improved.

In some embodiments, the heating device includes a heating oven, the heating oven is mounted on the workbench, the heating oven is provided with a heating channel, a gap between the heating channels is slightly larger than an outer diameter of the injection molded part, a depth of the heating channel extends from an upper surface of the heating oven to a position close to a lower surface of the heating oven, and a clamp replacing assembly is arranged above the heating oven. From this, the displacement clamping jaw lasts the centre gripping many pipe fittings upper portion, and driving motor drives the displacement board indirectly and removes to heating device top, and the lower part of each pipe fitting is transplanted to the heating channel in, and the heating channel has darker degree of depth, can heat the pipe fitting and soften.

In some embodiments, trade the clamp subassembly including trading the clamp clamping jaw, trade and press from both sides clamping jaw cylinder and base, trade and press from both sides the clamping jaw and be equipped with two, two trade and press from both sides the clamping jaw and all be equipped with a plurality of semi-circular draw-in grooves, two trade the both sides that press from both sides the clamping jaw and lie in heating channel respectively, every trade and press from both sides the clamping jaw and be connected with the fifth slider, the fifth slider is equipped with complex fifth guide rail with it, the fifth guide rail is installed on the base, trade and press from both sides clamping jaw cylinder fixed mounting in the base, the telescopic link that trades the clamping jaw cylinder is connected with the push pedal, the push pedal. Therefore, the number of the semicircular clamping grooves of the clamp replacing clamping jaw is the same as that of the semicircular clamping grooves of the displacement clamping jaw, and when the pipe fitting is transplanted to a heating channel, the pipe fitting can be fixed before being heated through the clamp replacing assembly, so that the stability of the pipe fitting during heating and softening is facilitated; the clamp replacing clamping jaw cylinder drives the push plate, and the push plate pushes the fifth slide block to move along the fifth guide rail so that the two clamp replacing clamping jaws are closed in opposite directions to clamp the pipe; after the pipe fitting is heated and softened, the clamping jaw replacing cylinder drives the push plate to enable the two clamping jaws to be far away from two sides to loosen the pipe body, and the displacement clamping jaws continuously clamp the upper part of the pipe body and move to the working position of the bending device along the first guide rail.

In some embodiments, the fixed material receiving jaw and the fixed displacement jaw are in the same vertical plane, and the centers of the closed material receiving jaw, the closed displacement jaw, the closed clip replacing jaw, and the closed heating channel are in the same vertical plane. Therefore, the material receiving clamping jaw and the displacement clamping jaw are opened and closed by adopting the single-side clamping jaw, the opening and closing structure is simplified, the material receiving and synchronous transplanting are more stable, and the material receiving clamping jaw, the displacement clamping jaw, the clamp changing clamping jaw and the heating channel are skillfully designed in position in order to facilitate the material receiving and synchronous transplanting of the pipe fitting.

In some embodiments, the bending device comprises a bending die, a bending cylinder, an edge-leaning positioning cylinder, a bending baffle and an edge-leaning positioning baffle, wherein the bending die comprises a male die and a female die which are separated from each other, an expansion link which is fixed to the edge-leaning positioning baffle by the edge-leaning positioning cylinder and connected with the male die by the expansion link of the edge-leaning positioning cylinder is fixed to the edge-leaning positioning baffle by the edge-leaning positioning cylinder, the bending cylinder is fixed to the bending baffle and connected with the female die by the expansion. Therefore, the displacement clamping jaw continuously clamps the upper parts of the plurality of pipe fittings, the pipe fittings after being heated and softened are transplanted between the male die and the female die, the male die and the female die are driven to move in opposite directions to be closed to complete bending by the edge positioning cylinder and the bending cylinder respectively, the water cooling groove is formed in the male die, and cooling time of the pipe fittings and cooling and shaping speed can be shortened through cold water circulation in the water cooling groove.

Compared with the prior art, the invention has the beneficial effects that: the injection molding bending machine provided by the invention is reasonable in design, can be used for receiving, synchronously transplanting, heating and softening and bending and shaping a plurality of pipe fittings at a time, realizes automatic operation and greatly improves the working efficiency; the pipe fitting bending machine comprises a material receiving clamping jaw, a displacement clamping jaw, a bending machine, a heating oven, a bending machine and a bending machine, wherein the material receiving clamping jaw clamps the bottoms of a plurality of pipe fittings at a time and moves to the position below the displacement clamping jaw, the elevator drives the material receiving clamping jaw to move upwards, the displacement clamping jaw clamps the upper part of a pipe body, after the upper part of the pipe body is clamped, the material receiving clamping jaw opens to loosen the bottom of the pipe body and moves downwards along with the driving of the elevator and resets simultaneously, the displacement clamping jaw continuously clamps the upper part of the pipe body and moves along a first guide rail, when the pipe body is synchronously transplanted to a heating channel, the pipe body is fixed through the material changing clamping jaw, the heating oven heats and softens the pipe fittings, the material changing clamping jaw loosens the heated and; the injection molding bending machine adopts assembly line type processing, saves labor, greatly reduces production cost, has high product qualification rate, and avoids risks brought to operators in the manufacturing process.

Drawings

Fig. 1 is a schematic structural view of an embodiment of a bending machine for injection molded parts according to the present invention;

FIG. 2 is a schematic structural diagram of a receiving device;

FIG. 3 is a schematic structural view of the synchronous transplanting device;

FIG. 4 is a schematic view of the structure of the heating apparatus;

FIG. 5 is a schematic structural view of example 2;

fig. 6 is a schematic diagram of the two transplanting clamping mechanisms moving to another working position when the injection molding bending machine works.

Detailed Description

The present invention will be further described with reference to the following embodiments.

Example 1

As shown in fig. 1, the bending machine for injection molding pieces according to the embodiment of the present invention includes a frame 1, a synchronous transplanting device 2, and a material receiving device 3, a heating device 4, and a bending device 5, which are sequentially disposed.

The top of the frame 1 is provided with a workbench 10, the heating device 4 and the bending device 5 are installed on the workbench 10, and the material receiving device 3 is located at the rightmost side of the frame 1. The synchronous transplanting device 2 comprises a first guide rail 22 erected above the worktable 10 of the frame 1 and a transplanting clamping mechanism 21 capable of moving left and right along the first guide rail 22. Two ends of the first guide rail 22 extend to the upper parts of the material receiving device 3 and the bending device 5 respectively, and the transplanting clamping mechanism 21 moves along the first guide rail 22 to move the injection molded parts at the material receiving device 3 to the heating device 4 and the bending device 5 in sequence. The injection molding machine produces long linear type hollow pipe fitting, the manipulator once snatchs many hollow pipe fittings, insert receiving device 3 with the bottom of pipe fitting, transplant fixture 21 and remove to receiving device 3 top along first guide rail 22, after the upper portion of transplanting fixture 21 centre gripping pipe fitting, receiving device 3 loosens the bottom of pipe fitting, it removes to the work position of heating device 4 along first guide rail 22 to transplant fixture 21 centre gripping pipe fitting, heating device 4 heats the pipe fitting and softens, after the pipe fitting heats and softens, it removes to bending device 5 along first guide rail 22 and bends the shaping to transplant fixture 21 centre gripping pipe fitting, this injection molding bender has realized from connecing the material, heat softens, bend in an organic whole, automatic operation has been realized.

As shown in fig. 2, the material receiving device 3 includes a material receiving clamping jaw 31, a material receiving clamping jaw air cylinder 32, a displacement air cylinder 33, a rail 34, and a lifting mechanism 35. The rail 34 is connected to the lifting mechanism 35, specifically, the lifting mechanism 35 includes a lifter 351, a third guide rail 352, a support frame 353 and a back plate 354, the back plate 354 is fixedly mounted on the right side of the frame 1 through a bolt, the third guide rail 352 is vertically mounted on the back plate 354, a third slider 3521 capable of sliding up and down is mounted on the third guide rail 352, the support frame 353 is fixedly connected to the third slider 3521 through a screw, and the top of the lifter 351 and the top of the support frame 353 are connected to the rail 34. In this embodiment, the elevator 351 employs a servo motor screw assembly. When the elevator 351 drives the rail 34 to move up and down integrally, the third slider 3521 moves up and down along the third guide rail 352 while the support frame 353 constantly supports the rail 34, thereby ensuring the stability of the up and down movement. A moving plate 36 is arranged on the rail 34, a groove is formed in the back of the moving plate 36 and can be matched with the rail 34, the displacement cylinder 33 is fixedly installed on one side of the rail 34, and the telescopic rod of the displacement cylinder 33 is connected with the moving plate 36. The second guide rails 37 are fixedly mounted on the left and right sides of the moving plate 36 by bolts, and second sliders 371 matched with the second guide rails 37 are arranged on the second guide rails 37. The middle part of the moving plate 36 is provided with a concave structure 361, the material receiving clamping jaw cylinder 32 is installed on the moving plate 36 and connected with the material receiving clamping jaw 31, the telescopic rod of the material receiving clamping jaw cylinder 32 moves back and forth in the concave structure 361, and the material receiving clamping jaw 31 is provided with two pieces which are opened and closed in opposite directions along the second guide rail 37 through the second slide block 371. Specifically, two connect material clamping jaws 31 to be fixed material clamping jaw 311 and activity respectively and connect material clamping jaw 312, and fixed material clamping jaw 311 that connects is fixed in on the movable plate 36, and the activity connects the both ends of material clamping jaw 312 to install on second guide rail 37 through second slider 371, and the activity connects material clamping jaw 312 to be connected with the telescopic link that connects material clamping jaw cylinder 32, and the fixed material clamping jaw 311 that connects all is equipped with a plurality of semi-circular draw-in grooves 6 with the activity opposite surface that connects material clamping jaw 312.

The sizes of the semicircular clamping grooves 6 on the opposite surfaces of the fixed material receiving clamping jaw 311 and the movable material receiving clamping jaw 312 are set according to the diameter of a pipe fitting to be clamped, and the material receiving clamping jaw 31 with the proper size is selected and replaced according to pipe fittings of different specifications. The semicircular clamping grooves 6 are provided with a plurality of grooves, the specific number can be determined according to the number of bends required at a time, the material receiving clamping jaw 31 can be used for clamping and transferring a plurality of pipe fittings at a time, and the working efficiency is greatly improved. In this embodiment, ten semicircular clamping grooves 6 are provided for each of the fixed material receiving clamping jaw 311 and the movable material receiving clamping jaw 312.

In the material receiving area, the pipe wall of the pipe to be clamped leans against the inner side wall of the fixed material receiving clamping jaw 311, the material receiving clamping jaw cylinder 32 drives the movable material receiving clamping jaw 312 to move along the second guide rail 37, so that the movable material receiving clamping jaw 312 and the fixed material receiving clamping jaw 311 are closed to clamp the bottom of the pipe, the displacement cylinder 33 drives the moving plate 36 to slide to one side, which is close to the first guide rail 22, along the rail 34, and the material receiving clamping jaw 31 and the material receiving clamping jaw cylinder 32 move along with the moving plate 36; the transplanting clamping mechanism 21 moves to the position above the material receiving clamping jaw 31 along the first guide rail 22, the lifting mechanism 35 drives the rail 34 and all parts above the rail to move upwards, and meanwhile, the transplanting clamping mechanism 21 clamps the upper part of the pipe body; after the upper part of the pipe body is clamped, the material receiving clamping jaw cylinder 32 drives the material receiving clamping jaw 31 to open and loosen the bottom of the pipe body, the transplanting clamping mechanism 21 continues to clamp the pipe fitting to move to the heating device 4 along the first guide rail 22, and the displacement cylinder 33 drives the moving plate 36 to drive the material receiving clamping jaw 31 to reset.

As shown in fig. 3, the synchronous transplanting device 2 further comprises a belt 23 and two rotating wheels 24. Two brackets 25 are installed on the table 10, and the brackets 25 are located at the rear side of the heating device 4. A base plate 26 is fixedly mounted on the bracket 25, and the first guide rail 22 is fixedly mounted on the base plate 26 by bolts. Two runners 24 are installed in both ends about base plate 26, and the teeth of a cogwheel that the vertical array of periphery of runner 24 set up, belt 23 are an annular circle that has the teeth of a cogwheel, and two runners 24 are located to belt 23 cover, and one of them runner 24 is connected with driving motor. The first guide rail 22 is provided with a first slide block 221 matched with the first guide rail, and the first slide block 221 is connected with a connecting plate 27. One end of the connecting plate 27 is connected with the belt 23, and the other end of the connecting plate 27 is connected with the transplanting clamping mechanism 21. The driving motor drives the rotating wheel 24 to rotate, so as to drive the belt 23 to move, the connecting plate 27 on the first sliding block 221 moves along the first guide rail 22 along with the belt 23, and the transplanting clamping mechanism 21 at the other end of the connecting plate 27 moves along with the same.

Transplanting clamping mechanism 21 includes displacement clamping jaw 211, displacement clamping jaw cylinder 212 and displacement board 213, and displacement board 213 and even board 27 fixed connection, displacement clamping jaw 211 include fixed displacement clamping jaw 2111 and activity displacement clamping jaw 2112, and are located the below of displacement board 213. The facing surfaces of the fixed displacement clamping jaw 2111 and the movable displacement clamping jaw 2112 are provided with a plurality of semicircular clamping grooves 6. The fixed displacement clamping jaw 2111 is fixed on the displacement plate 213, the movable displacement clamping jaw 2112 is connected with the telescopic rod of the displacement clamping jaw cylinder 212, the fourth guide rail 214 is fixedly installed on the left side and the right side of the lower surface of the displacement plate 213, and the movable displacement clamping jaw 2112 is connected to the fourth guide rail 214 through the fourth sliding block 2141. The number of the semicircular clamping grooves 6 of the displacement clamping jaw 211 is the same as that of the semicircular clamping grooves 6 of the material receiving clamping jaw 31, when the upper part of the pipe needs to be clamped, the pipe wall of the upper part of the pipe is close to the inner side wall of the fixed displacement clamping jaw 2111, and the displacement clamping jaw cylinder 212 drives the movable displacement clamping jaw 2112 to move along the fourth guide rail 214, so that the movable displacement clamping jaw 2112 and the fixed displacement clamping jaw 2111 are closed to clamp the upper part of the pipe.

As shown in fig. 4, the heating device 4 includes a heating oven 41, and the heating oven 41 is fixedly mounted on the table 10. A heating channel 411 which is transversely arranged is formed in the center of the heating oven 41, the gap between the heating channels 411 is slightly larger than the outer diameter of the injection molding part, and the depth of the heating channel 411 extends from the upper surface of the heating oven 41 to be close to the lower surface of the heating oven 41. The displacement clamping jaws 211 continuously clamp the upper parts of the plurality of pipe fittings, the driving motor indirectly drives the displacement plate 213 to move to the position above the heating device 4, the lower parts of the pipe fittings are transplanted into the heating channel 411, and the heating channel 411 has a deeper depth and can heat and soften the pipe fittings.

A clamp replacing assembly 42 is arranged above the heating oven 41, and the clamp replacing assembly 42 comprises a clamp replacing clamping jaw 421, a clamp replacing clamping jaw air cylinder 422 and a base 423. Trade and press from both sides clamping jaw 421 and be equipped with two, two trade and press from both sides clamping jaw 421 and all be equipped with a plurality of semi-circular draw-in grooves 6. The two clip replacing clamping jaws 421 are respectively located at two sides of the heating channel 411, each clip replacing clamping jaw 421 is connected with a fifth sliding block 4241, the fifth sliding block 4241 is provided with a fifth guide rail 424 matched with the fifth sliding block, and the fifth guide rail 424 is fixedly installed on the base 423. The clamp-changing clamping jaw air cylinder 422 is fixedly installed on the base 423, the telescopic rod of the clamp-changing clamping jaw air cylinder 422 is connected with a push plate 425, the push plate 425 is connected with a fifth sliding block 4241, and the fifth sliding block 4241 can be pushed to move along a fifth guide rail 424 to enable the two clamp-changing clamping jaws 421 to be opened and closed oppositely. The number of the semicircular clamping grooves 6 of the clamp replacing clamping jaw 421 is the same as that of the semicircular clamping grooves 6 of the displacement clamping jaw 211, when the pipe fitting is transplanted to the heating channel 411, the pipe fitting can be fixed before being heated through the clamp replacing assembly 42, and the stability of the pipe fitting during heating and softening is facilitated. The clamping jaw replacing cylinder 422 drives the push plate 425, and the push plate 425 pushes the fifth sliding block 4241 to move along the fifth guide rail 424, so that the two clamping jaws 421 are closed in opposite directions to complete clamping of the pipe. After the pipe is heated and softened, the clamping jaw replacing cylinder 422 drives the push plate 425 to make the two clamping jaws 421 move away from the two sides to loosen the pipe, and the displacement clamping jaw 211 continuously clamps the upper part of the pipe and moves to the working position of the bending device 5 along the first guide rail 22.

In this embodiment, for the messenger connect the material and transplant more stably orderly going on in step, for the convenience connect the material and transplant in step of pipe fitting, each part position design benefit. The fixed material receiving clamping jaw 311 and the fixed displacement clamping jaw 2111 are positioned on the same vertical plane, and the centers of the closed material receiving clamping jaw 31, the displacement clamping jaw 211, the clamp replacing clamping jaw 421 and the heating channel 411 are positioned on the same vertical plane. The material receiving clamping jaw 31 and the displacement clamping jaw 211 are opened and closed by adopting a clamping jaw at one side, so that the opening and closing structure is simplified.

As shown in fig. 1, the bending device 5 includes a bending die 51, a bending cylinder 52, an edge positioning cylinder 53, a bending baffle 54, and an edge positioning baffle 55. The bending die 51 comprises a male die 511 and a female die 512 which are separated, the male die 511 is provided with a water cooling groove 56, and the male die 511 and the female die 512 are arranged in a front-back manner (as shown in fig. 1). The side positioning cylinder 53 is fixed on the side positioning baffle 55, the telescopic rod of the side positioning cylinder 53 is connected with the male die 511, and the side positioning baffle 55 is fixed on the workbench 10. The bending cylinder 52 is fixed to the bending baffle 54, the telescopic rod of the bending cylinder 52 is connected with the female die 512, and the bending baffle 54 is fixed to the workbench 10. The displacement clamping jaws 211 continuously clamp the upper parts of the plurality of pipes, the pipes after being heated and softened are transplanted between the male die 511 and the female die 512, the side-by-side positioning cylinders 53 and the bending cylinders 52 respectively drive the male die 511 and the female die 512 to move oppositely to be closed to finish bending, the water cooling grooves 56 are formed in the male die 511, and cooling time of the pipes can be shortened and cooling and shaping speed can be increased through cold water circulation in the water cooling grooves 56. In order to facilitate automatic discharging, a feed opening (not shown) is formed in the workbench 10 right below the bending die 51, a material receiving box 11 is placed right below the feed opening, the material receiving box 11 is located in the rack 1, the bent pipe fitting vertically falls into the material receiving box 11 from the loosened displacement clamping jaw 211, and the pipe fitting can be taken out after a cabinet door of the rack 1 is opened. And each corner of the bottom of the frame 1 is provided with a movable roller 12, so that the whole equipment can be conveniently transferred.

The specific working process of the invention is as follows: the injection molding machine produces long linear type hollow pipe fitting, and ten hollow pipe fittings are once snatched to the manipulator to connect the material district top. The pipe wall of the pipe to be clamped leans against the inner side wall of the fixed material receiving clamping jaw 311, the material receiving clamping jaw cylinder 32 drives the movable material receiving clamping jaw 312 to move along the second guide rail 37, so that the movable material receiving clamping jaw 312 and the fixed material receiving clamping jaw 311 are closed to clamp the bottom of the pipe, the displacement cylinder 33 drives the movable plate 36 to slide along the rail 34 to one side, namely the left side, which is close to the first guide rail 22, the material receiving clamping jaw 31 and the material receiving clamping jaw cylinder 32 move along the movable plate 36, the displacement clamping jaw 211 is located on the rightmost side of the first guide rail 22, and the material receiving clamping jaw 31 moves to the. The elevator 351 drives the rail 34 and all the components above the rail to move upwards along the third guide rail 352, the pipe wall of the upper part of the pipe is close to the inner side wall of the fixed displacement clamping jaw 2111, the displacement clamping jaw cylinder 212 drives the movable displacement clamping jaw 2112 to move along the fourth guide rail 214, so that the movable displacement clamping jaw 2112 and the fixed displacement clamping jaw 2111 are closed to clamp the upper part of the pipe, and the material receiving clamping jaw 31 is opened to release the bottom of the pipe and moves downwards along with the driving of the elevator 351 and is reset simultaneously. After the upper part of the pipe body is clamped, the driving motor drives the rotating wheel 24 to rotate, so as to drive the belt 23 to move, the connecting plate 27 on the first sliding block 221 moves leftwards along the first guide rail 22, the displacement clamping jaw 211 also moves leftwards along with the first guide rail, and the pipe body is synchronously transplanted to the heating channel 411; before heating the pipe body, the clamp-changing clamping jaw air cylinder 422 drives the push plate 425, the push plate 425 pushes the fifth sliding block 4241 to move along the fifth guide rail 424, so that the two clamp-changing clamping jaws 421 are closed in opposite directions to complete clamping of the pipe body, and after the pipe body is clamped by the clamp-changing clamping jaws 421, the heating oven 41 heats and softens the pipe body. After heating and softening are completed, the clamping jaw 421 is changed to loosen the pipe, the driving motor drives the rotating wheel 24 to rotate, the belt 23 is driven to move, the displacement jaw 211 also moves leftwards, the pipe is transplanted between the male die 511 and the female die 512 by the displacement jaw 211, the male die 511 and the female die 512 are driven to move oppositely to be closed by the edge positioning cylinder 53 and the bending cylinder 52 respectively to perform bending and shaping at a preset angle, a water cooling tank 56 is arranged in the bending die 51, and an external water cooling machine can accelerate cooling and shaping of the pipe. After the die is opened, the formed pipe fittings automatically fall into the material receiving box 11 below the workbench 10, and an operator can open the cabinet door of the rack 1 to obtain the pipe fittings to be bent.

Example 2

As shown in fig. 5, the main difference between the embodiment 2 and the embodiment 1 is that the number of the transplanting grippers 21 of the synchronous transplanting apparatus 2 is different, in this embodiment, two sets of transplanting grippers 21 are provided, and the specific structure of the two sets of transplanting grippers 21 is the same as that of the transplanting grippers 21 in the embodiment 1.

The two groups of transplanting clamping mechanisms 21 are arranged left and right and are respectively connected to the lower parts of the left side and the right side of the connecting plate 27. Specifically, the lower surface of the left side of the connecting plate 27 is connected with the upper surface of the right side of the displacement plate 213 of the left transplanting clamping mechanism 21 through screws; the lower surface of the right side of the connecting plate 27 is connected with the upper surface of the left side of the displacement plate 213 of the right transplanting holding mechanism 21 through screws. When the material receiving clamping jaw 31 moves along the rail 34 to abut against the first guide rail 22, that is, when the material receiving device 3 is to transplant the upper part of the pipe body into the displacement clamping jaw 211 of the right-hand transplanting clamping mechanism 21, the central distance between the material receiving clamping jaw 31 and the heating device 4 is the same as the central distance between the two groups of transplanting clamping mechanisms 21. The center distance between the heating device 4 and the bending device 5 is the same as the center distance between the two groups of transplanting clamping mechanisms 21.

As shown in fig. 5, by providing two sets of transplanting clamping mechanisms 21, when the displacement clamping jaws 211 of the right transplanting clamping mechanism 21 are positioned above the material receiving device 3 to clamp the pipe in the material receiving area, the displacement clamping jaws 211 of the left transplanting clamping mechanism 21 clamp the pipe on the heating device 4 and heat and soften the pipe. As shown in fig. 6, the driving motor drives the rotating wheel 24 to rotate, and further drives the belt 23 to move, the connecting plate 27 on the first sliding block 221 moves leftwards along the first guide rail 22, the displacement clamping jaw 211 of the right transplanting holding mechanism 21 moves to above the heating device 4, and the displacement clamping jaw 211 of the left transplanting holding mechanism 21 moves to above the working position of the bending device 5. Through the arrangement mode of the two groups of transplanting clamping mechanisms 21, the work of two stations can be simultaneously carried out, and the work efficiency is greatly improved.

In practical application, the rail 34 of the receiving device 3 may also be a rail with a telescopic structure for moving the receiving clamping jaw 31.

The injection molding bending machine provided by the invention is reasonable in design, can be used for receiving, synchronously transplanting, heating and softening and bending and shaping a plurality of pipe fittings at a time, realizes automatic operation, adopts production line type processing, saves labor, reduces production cost, greatly improves working efficiency, has high product qualification rate, and can avoid risks brought to operators in the manufacturing process.

The foregoing describes only some embodiments of the present invention and modifications and variations thereof will be apparent to those skilled in the art without departing from the spirit and scope of the invention.

Claims

1. The utility model provides an injection molding bender, its characterized in that, including frame (1), synchronous transplanting device (2) and receiving device (3), heating device (4), bending device (5) that set gradually, be equipped with workstation (10) on frame (1), on workstation (10) was located in heating device (4) and bending device (5), synchronous transplanting device (2) including erect in first guide rail (22) of workstation (10) top, can follow transplanting fixture (21) that first guide rail (22) controlled, the both ends of first guide rail (22) extend to receiving device (3), bending device (5)'s top respectively, transplanting fixture (21) move along first guide rail (22) and move the injection molding of receiving device (3) department to heating device (4), bending device (5) in proper order.

2. The injection molding bending machine according to claim 1, wherein the receiving device (3) comprises a receiving clamping jaw (31), a receiving clamping jaw cylinder (32), a displacement cylinder (33), a rail (34) and a lifting mechanism (35), the rail (34) is connected to the lifting mechanism (35), a moving plate (36) is arranged on the rail (34), second guide rails (37) are arranged on two sides of the moving plate (36), the receiving clamping jaw cylinder (32) is installed on the moving plate (36) and connected with the receiving clamping jaw (31), the receiving clamping jaw (31) is provided with two pieces and is opened and closed in opposite directions along the second guide rails (37) through a second slider (371), the displacement cylinder (33) is installed on the rail (34), and a telescopic rod of the displacement cylinder (33) is connected with the moving plate (36).

3. The injection molding bending machine according to claim 2, wherein the two material receiving clamping jaws (31) are respectively a fixed material receiving clamping jaw (311) and a movable material receiving clamping jaw (312), the fixed material receiving clamping jaw (311) is fixed on the movable plate (36), two ends of the movable material receiving clamping jaw (312) are installed on the second guide rail (37) through the second slider (371), the movable material receiving clamping jaw (312) is connected with an expansion link of the material receiving clamping jaw cylinder (32), and a plurality of semicircular clamping grooves (6) are formed in opposite surfaces of the fixed material receiving clamping jaw (311) and the movable material receiving clamping jaw (312).

4. The machine according to claim 3, characterized in that the lifting mechanism (35) comprises a lifter (351), a third guide rail (352), a support frame (353) and a back plate (354), the back plate (354) is fixed to the machine frame (1), the third guide rail (352) is vertically mounted on the back plate (354), a third slider (3521) is arranged on the third guide rail (352), the support frame (354) is connected with the third slider (3521), and the tops of the lifter (351) and the support frame (353) are connected with the rail (34).

5. The injection molding bending machine according to claim 4, wherein the synchronous transplanting device (2) further comprises a belt (23) and two rotating wheels (24), a support (25) is arranged on the workbench (10), a base plate (26) is arranged on the support (25), the first guide rail (22) is arranged on the base plate (26), the two rotating wheels (24) are arranged at the left end and the right end of the base plate (26), the periphery of each rotating wheel (24) is provided with gear teeth in a vertical array manner, the belt (23) is an annular ring with the gear teeth, the belt (23) is sleeved on the two rotating wheels (24), one of the rotating wheels (24) is connected with a driving motor (241), the first guide rail (22) is provided with a first sliding block (221), the first sliding block (221) is connected with a connecting plate (27), one end of the connecting plate (27) is connected with the belt (23), the other end of the connecting plate (27) is connected with a transplanting clamping mechanism (21).

6. Injection molding machine according to claim 5, wherein said transplanting gripping mechanism (21) comprises a displacement jaw (211), a displacement jaw cylinder (212) and a displacement plate (213), the displacement plate (213) is connected with the connecting plate (27), the displacement clamping jaw (211) comprises a fixed displacement clamping jaw (2111) and a movable displacement clamping jaw (2112), and is positioned below the displacement plate (213), a plurality of semicircular clamping grooves (6) are respectively arranged on the opposite surfaces of the fixed displacement clamping jaw (2111) and the movable displacement clamping jaw (2112), the fixed displacement clamping jaw (2111) is fixed on the displacement plate (213), the movable displacement clamping jaw (2112) is connected with the telescopic rod of the displacement clamping jaw cylinder (212), the bottom of displacement board (213) is equipped with fourth guide rail (214), activity displacement clamping jaw (2112) is connected in fourth guide rail (214) through fourth slider (2141).

7. The injection molding bending machine according to claim 6, wherein the transplanting clamping mechanisms (21) are provided in two sets, one set of transplanting clamping mechanisms (21) is connected to each of the left side and the right side of the connecting plate (27), when the material receiving clamping jaw (31) moves along the rail (34) to abut against the first guide rail (22), the central distance between the material receiving clamping jaw (31) and the heating device (4) is the same as that between the two sets of transplanting clamping mechanisms (21), and the central distance between the heating device (4) and the bending device (5) is also the same as that between the two sets of transplanting clamping mechanisms (21).

8. The machine according to claim 6 or 7, characterized in that the heating device (4) comprises a heating oven (41), the heating oven (41) is mounted on the worktable (10), the heating oven (41) is provided with a heating channel (411), the gap between the heating channels (411) is slightly larger than the outer diameter of the injection molded part, the depth of the heating channel (411) extends from the upper surface of the heating oven (41) to be close to the lower surface of the heating oven (41), and a clamp changing assembly (42) is arranged above the heating oven (41).

9. The machine according to claim 8, wherein said clamp changing assembly (42) comprises a clamp changing jaw (421), a clamp changing jaw cylinder (422), and a base (423), the two clip replacing clamping jaws (421) are provided, the two clip replacing clamping jaws (421) are respectively provided with a plurality of semicircular clamping grooves (6), the two clip replacing clamping jaws (421) are respectively positioned at two sides of the heating channel (411), each clip replacing clamping jaw (421) is connected with a fifth sliding block (4241), the fifth sliding block (4241) is provided with a fifth guide rail (424) matched with the fifth sliding block, the fifth guide rail (424) is arranged on the base (423), the clamp-changing clamping jaw air cylinder (422) is fixedly arranged on the base (423), a telescopic rod of the clamp-changing clamping jaw air cylinder (422) is connected with a push plate (425), the push plate (425) can push the fifth sliding block (4241) to move along the fifth guide rail (424) so that the two clamping jaw exchanging jaws (421) are opened and closed oppositely.

10. The machine for bending injection-molded parts according to claim 9, wherein the fixed material-receiving clamping jaw (311) and the fixed displacement clamping jaw (2111) are in the same vertical plane, and the centers of the closed material-receiving clamping jaw (31), the displacement clamping jaw (211), the clamp-changing clamping jaw (421) and the heating channel (411) are in the same vertical plane.

11. The injection molding bending machine according to claim 10, wherein the bending device (5) comprises a bending die (51), a bending cylinder (52), an edge-abutting positioning cylinder (53), a bending baffle (54) and an edge-abutting positioning baffle (55), the bending die (5) comprises a male die (511) and a female die (512) which are separated from each other, the edge-abutting positioning cylinder (53) is fixed to the edge-abutting positioning baffle (55) and an expansion rod of the edge-abutting positioning cylinder (53) is connected with the male die (511), the bending cylinder (52) is fixed to the bending baffle (54) and an expansion rod of the bending cylinder (52) is connected with the female die (512), and the male die (512) is provided with a water cooling groove (56).