CN110757734B

CN110757734B - Instrument shell injection mold and injection molding process thereof

Info

Publication number: CN110757734B
Application number: CN201911019888.2A
Authority: CN
Inventors: 刘国栋; 杨九贵; 黄图才
Original assignee: Shenzhen Princeton Mould Plastic Co ltd
Current assignee: Shenzhen Princeton Mould Plastic Co ltd
Priority date: 2019-10-24
Filing date: 2019-10-24
Publication date: 2022-03-25
Anticipated expiration: 2039-10-24
Also published as: CN110757734A

Abstract

The utility model discloses an instrument shell injection mold and an injection molding process thereof, and belongs to the technical field of plastic injection molds, the instrument shell injection mold comprises a movable mold and a fixed mold, the fixed mold is provided with two concave mold grooves, the movable mold is fixedly provided with two convex modules, the two sides of the fixed mold are both connected with a cylinder body of a first air cylinder, a piston rod of the first air cylinder is both fixedly connected with a cylinder body of a second air cylinder, a piston rod of the second air cylinder is both fixedly connected with claw arm base plates, each claw arm base plate is connected with four linear motors, an output shaft of each linear motor is fixedly connected with an insertion column, the diameter of the insertion column is smaller than that of the insertion groove, and the insertion column can extend into the insertion groove; the linear motor feeding device has the advantages that the feeding work of an instrument shell can be automatically completed through the control system, personnel do not need to approach the linear motor, the safety is high, and the production efficiency is effectively improved.

Description

Instrument shell injection mold and injection molding process thereof

Technical Field

The utility model relates to the technical field of plastic injection molds, in particular to an instrument shell injection mold and an injection molding process thereof.

Background

The existing injection mold is a tool for producing plastic products; and is also a tool for giving the plastic product complete structure and accurate dimension. Injection molding is a process used to mass produce parts of some complex shapes. Specifically, the plastic melted by heating is injected into a mold cavity from an injection molding machine at high pressure, and a formed product is obtained after cooling and solidification.

The prior art can refer to the Chinese utility model patent with the publication number of CN204431665U, which discloses an inclined ejection core-pulling device of an injection mold, comprising an A inclined ejection block (1) and a B inclined ejection block (2). The utility model adopts the device composed of the components, the inclined top block A is provided with a profile corresponding to the inverted buckle surface of the product, namely an inverted buckle profile; the inclined ejector block B is provided with a molded surface corresponding to the interference surface of the product, namely an interference molded surface, and the inclined ejector block A and the inclined ejector block B are spliced and slidably positioned in the mold core; the angle of the oblique top block A is called as an angle alpha, the angle of the oblique top block B is called as an angle beta, and the angle beta is larger than the angle alpha; during operation, the top plate pushes the A oblique ejector block and the B oblique ejector block to synchronously eject obliquely for demolding, and due to the fact that the beta angle is larger than the alpha angle, when the B oblique ejector block is obliquely extracted from the interference surface of a product, a gap is vacated for the A oblique ejector block to be extracted from the inverted buckle surface of the product, so that the A oblique ejector block avoids the combined oblique ejection core-pulling technical scheme that the interference surface can be smoothly extracted from the inverted buckle surface, the core-pulling of the inverted buckle structure at the narrow position of the injection mold product avoids interference, and the purpose of demolding through oblique ejection core-pulling is achieved easily.

As shown in fig. 1, a conventional instrument casing includes a rectangular casing 1, a surrounding edge 11 surrounding the casing 1 is fixedly arranged around the casing 1, the surrounding edge 11 is perpendicular to the surface of the casing 1, a connecting column 12 is fixedly connected to four corners of one surface of the casing 1 close to the surrounding edge 11, the connecting column 12 is perpendicular to the surface of the casing 1, an insertion groove 13 is formed in the connecting column 12 and is arranged along the length direction of the connecting column 12, and a plurality of exposure grooves 14 used for exposing parts such as a knob and a port are formed in the casing 1.

The above prior art solutions have the following drawbacks: because the overall shape of the instrument shell is simple and regular, and a complex ejection mechanism is not needed, the formed instrument shell is peeled from the fixed die by directly manually stirring materials in the blanking process, but the manual stirring has certain danger, the efficiency is low, workers are required to stay beside the injection molding machine all the time, and the utilization rate of labor force is low.

Disclosure of Invention

The utility model aims to provide an instrument shell injection mold which can automatically complete the blanking work of an instrument shell through a control system, does not need personnel to approach, has high safety and effectively improves the production efficiency.

The technical purpose of the utility model is realized by the following technical scheme:

an injection mold for an instrument shell comprises a movable mold and a fixed mold, wherein the fixed mold is provided with two concave mold grooves, the movable mold is fixedly provided with two convex mold blocks, when the fixed die and the movable die are mutually abutted, a cavity is formed between the adjacent female die grooves and the male die block, the two sides of the fixed die are both connected with the cylinder bodies of the first cylinders, the piston rods of the two first cylinders are respectively positioned on the same plane with the two female die grooves, the piston rods of the first cylinders are all arranged along the length direction of the insertion groove, the piston rods of the first cylinders are all fixedly connected with the cylinder body of the second cylinder, the piston rod of the second cylinder is perpendicular to the piston rod of the first cylinder, the piston rod of the second cylinder is all fixedly connected with the claw arm base plate, each claw arm base plate is connected with four linear motors, the output shaft of each linear motor is all fixedly connected with the insertion column, the diameter of the insertion column is smaller than that of the insertion groove, and the insertion column can stretch into the insertion groove;

the first air cylinder, the second air cylinder and the linear motor are connected with a control system together, and the control system comprises a starting module, a transverse control module, a longitudinal control module and a manipulator control module;

the starting module receives a starting instruction input from the outside and then sends a starting signal to the transverse control module;

the transverse control module receives a starting signal and then controls the piston rods of the two second cylinders to extend until the two claw arm substrates extend to positions opposite to the female die grooves and sends an in-place signal to the longitudinal control module, and the transverse control module receives a reset signal and then controls the piston rods of the two second cylinders to retract;

the longitudinal control module receives the in-place signal and then controls piston rods of the two first cylinders to contract until the plug-in column extends into the plug-in groove, and simultaneously sends a reaching signal to the manipulator control module;

the manipulator control module receives the arrival signal and then controls the output shafts of all the linear motors to extend out, and simultaneously sends a demoulding signal to the longitudinal control module, and the manipulator control module receives the reset signal and then controls the output shafts of all the linear motors to retract.

Through adopting the above scheme, the staff is in the completion back of moulding plastics, only need to input start instruction to control system, control system just can press from both sides the instrument casing voluntarily, and remove to the mould both sides, because two second cylinders are located the mould both sides respectively, so the piston rod of two second cylinders can stimulate two instrument casings and keep away from each other withdrawing the in-process, will congeal the material and tear, reduce staff's work step, it only need at last with two instrument casings respectively follow two claw arm base plates take off can to work, do not need the staff to be close to injection mold, therefore, the safety is high, effectively improve production efficiency, and the labour is saved.

The utility model is further configured to: a sleeve is fixedly connected outside each linear motor, the sleeves are rotatably connected in the claw arm base plate, and four linear motors in the same claw arm base plate are jointly connected with a rotating assembly for driving all the linear motors to rotate simultaneously;

the control system further comprises an automatic blanking module, the automatic blanking module is connected with the transverse control module, when the transverse control module controls the piston rods of the two second cylinders to retract, the transverse control module sends blanking signals to the automatic blanking module, and after the automatic blanking module receives the blanking signals, the automatic blanking module controls the rotating assembly to drive all the linear motors to rotate downwards for a period of time and then rotate back to the original position.

By adopting the above scheme, automatic unloading module control runner assembly drive all linear motor rotate the back downwards, can drive the downward sloping of grafting post, and instrument housing will be followed the grafting post and slided down this moment, accomplishes the unloading to the grafting post can automatic re-setting, can not lead to the fact the influence to follow-up unloading.

The utility model is further configured to: the rotating assembly comprises annular racks fixedly connected to the outside of each sleeve, each annular rack is meshed with a gear, the gears meshed with the annular racks with the same axes are the same in axes, the gears with the same axes are fixedly connected with a secondary transmission shaft together, the secondary transmission shafts are fixedly connected with secondary commutators, two commutators in the same claw arm substrate are fixedly connected with a primary transmission shaft together, a driving motor is fixedly connected to the position, close to the primary transmission shaft, of the claw arm substrate, the output shaft of the driving motor is fixedly connected with a primary commutator, and the primary commutators are fixedly connected to the primary transmission shaft;

the automatic blanking module receives the blanking signal and then controls the output shaft of the driving motor to rotate for a period of time and then reversely rotate back to the original position.

Through adopting above-mentioned scheme, driving motor passes through the one-level commutator and drives the one-level transmission shaft and rotate, the one-level transmission shaft passes through the second grade commutator and drives two second grade transmission shafts and rotate, the second grade transmission shaft drives four gear rotations simultaneously, four gears drive four sleeves simultaneously and rotate, thereby drive the linear motor and rotate, make the post of pegging graft rotate, only need a power supply can drive four posts of pegging graft and move simultaneously, effective resources are saved, can guarantee four posts of pegging graft and rotate in step simultaneously, be difficult to take place the dislocation.

The utility model is further configured to: the bottom of the second cylinder is provided with a material receiving box, the claw arm base plate can be positioned right above the material receiving box, and the top of the material receiving box is provided with a material receiving groove.

By adopting the scheme, the material receiving box is used for receiving the instrument shell falling from the claw arm substrate, so that the instrument shell is convenient for workers to collect.

The utility model is further configured to: connect the inside fixedly connected with of workbin to have elastic buffer layer.

Through adopting above-mentioned scheme, the buffer layer can effectively reduce the impact that the instrument casing whereabouts received, guarantees the quality of instrument casing.

The utility model is further configured to: the upper surface of the buffer layer is provided with an inclined plane which inclines downwards towards the other end along one end of the material receiving box close to the claw arm substrate.

Through adopting above-mentioned scheme, the inclined plane makes the instrument casing can follow inclined plane slide inclined plane bottom after falling on the buffer layer, avoids colliding with the instrument casing of next whereabouts.

The utility model is further configured to: a waste box is arranged below the fixed die, one side of the waste box, which is far away from the fixed die, is fixedly connected with a cylinder body of a lifting cylinder, a piston rod of the lifting cylinder is fixedly connected with a lifting frame, one side of the lifting frame, which is close to the fixed die, is fixedly connected with two cutting plates which are parallel to the length direction of the inserting groove, and when the piston rod of the lifting cylinder extends out, the two cutting plates can respectively abut against one surfaces, close to each other, of the two claw arm substrates;

the control system further comprises a waste material processing module, the waste material processing module receives a starting signal output by the starting module and a reset signal output by the longitudinal control module, the piston rod of the lifting cylinder is controlled to extend out after the waste material processing module receives the starting signal, and the piston rod of the lifting cylinder is controlled to retract after the waste material processing module receives the reset signal.

Through adopting above-mentioned scheme, when first cylinder drives claw arm base plate and extracts instrument housing from the cover half, instrument housing will congeal the material and take out from the cover half together, congeal the material and touch and receive the cutting plate extrusion after the cutting plate, make congeal material and instrument housing separation, congeal simultaneously in the material can fall the dump bin, the staff of being convenient for collects.

The utility model is further configured to: two cutting boards keep away from equal fixedly connected with sawtooth of crane one end.

Through adopting above-mentioned scheme, the sawtooth can make the cutting plate cut off congealing from the appearance casing more easily, even congeal the material and do not cut off at the in-process that the piston rod of first cylinder stretches out, also can be cut off by the sawtooth when the piston rod of second cylinder withdraws.

The utility model is further configured to: the cover half is close to the equal fixedly connected with mounting bracket of every first cylinder position department, and every first cylinder is close to the equal fixedly connected with connecting rod of adjacent mounting bracket position department, and the equal fixedly connected with a plurality of threaded rods of adjacent first cylinder one end are kept away from to every connecting rod, and the equal threaded connection of every threaded rod has the thread bush, and the thread groove has all been seted up to every thread bush position department that the mounting bracket corresponds, and the thread bush can threaded connection in the thread groove.

Through adopting above-mentioned scheme, the user can dismantle first cylinder from the cover half through mounting bracket and spliced pole, when the first cylinder of installation, also can play the effect of location, and the staff of being convenient for finds the position fast.

The utility model aims to provide an injection molding process of an instrument shell, which can automatically complete the blanking work of the instrument shell through a control system, does not need personnel to approach, has high safety and effectively improves the production efficiency.

an injection molding process for an instrument housing, comprising the steps of:

firstly, mounting a movable die and a fixed die on an injection molding machine, screwing a thread sleeve into a thread groove, and fixing a first air cylinder;

adjusting the initial positions of the first cylinder, the second cylinder and the claw arm base plates to enable the two claw arm base plates to be respectively located on two sides of the movable die and located on the same plane with the two female die slots;

thirdly, the injection molding machine controls the movable mold and the fixed mold to be closed and starts injection molding;

fourthly, after the injection molding is finished, separating the movable mold from the fixed mold, and inputting a starting signal to the control system;

fifthly, the control system controls a piston rod of the second air cylinder to extend out, the claw arm base plate extends to the concave die groove, and meanwhile, the piston rod of the lifting air cylinder extends out to enable the lifting frame to be lifted;

sixthly, the control system controls the piston rod of the first cylinder to contract, so that the plug columns are all plugged in the plug grooves;

seventhly, the control system controls the output shaft of the linear motor to extend out, so that the plug column is tightly abutted into the plug groove;

eighthly, the control system controls a piston rod of the first air cylinder to extend out, so that the inserting column drives the instrument shell to be separated from the fixed die, and the condensed material of the instrument shell abuts against the cutting plate in the moving process, so that the condensed material is separated from the instrument shell and falls into a waste bin;

the control system controls the piston rod of the second cylinder to retract to drive the claw arm substrate to move above the material receiving box, and meanwhile, the output shaft of the linear motor retracts to release the insertion column;

and tenthly, the control system controls the driving motors to drive all the linear motors to rotate downwards, so that the insertion columns incline downwards, the instrument shell falls into the material receiving box from the insertion columns, and the driving motors control all the linear motors to rotate back to the original positions to complete resetting.

Through adopting above-mentioned scheme, when mould processing instrument casing, the staff need not be close to the mould and can accomplish the unloading to instrument casing, regularly in the connect the material box collect the instrument casing that processes can, effectively practice thrift the labour, improve production efficiency, the security is high.

In conclusion, the utility model has the following beneficial effects:

1. after the injection molding is finished, a worker only needs to input a starting instruction to the control system, the control system can automatically clamp the instrument shell and move the instrument shell to the two sides of the mold, and the two second cylinders are respectively positioned on the two sides of the mold, so that the two instrument shells can be pulled to be away from each other in the retracting process by piston rods of the two second cylinders, the solidified materials are torn off, the working steps of the worker are reduced, the worker only needs to take the two instrument shells off the two claw arm substrates respectively at last, the worker does not need to approach the injection mold, the safety is high, the production efficiency is effectively improved, and the labor force is saved;

2. after the automatic blanking module controls the rotating assembly to drive all the linear motors to rotate downwards, the inserting column is driven to incline downwards, the instrument shell can slide down from the inserting column to complete blanking, and the inserting column can automatically reset without influencing subsequent blanking;

3. when first cylinder drives claw arm base plate and extracts instrument housing from the cover half, instrument housing will congeal the material and take out from the cover half together, congeal the material and touch and receive the cutting plate extrusion after the cutting plate, make congeal material and instrument housing separation, congeal in the material can fall the dump bin simultaneously, the staff of being convenient for collects.

Drawings

FIG. 1 is a schematic illustration of an instrument housing of the background art;

FIG. 2 is a schematic overall structure diagram of the first embodiment;

FIG. 3 is an exploded view of a raised cavity in accordance with one embodiment;

FIG. 4 is a schematic diagram of a bump block according to one embodiment;

FIG. 5 is a schematic view showing an emergency use state in the first embodiment;

FIG. 6 is an exploded view of the protruding mounting bracket and connecting rod of the first embodiment;

FIG. 7 is a schematic view showing the first cylinder, the second cylinder and the claw arm base plate protruding in the first embodiment;

FIG. 8 is a schematic view of a protruding pivot assembly according to one embodiment;

FIG. 9 is a schematic view of the protruded waste bin and the crane in the first embodiment;

FIG. 10 is a cross-sectional view of an extruded buffer layer according to one embodiment;

FIG. 11 is a block diagram of a highlighted control system in one embodiment.

In the figure, 1, a watch case; 11. surrounding edges; 12. connecting columns; 13. inserting grooves; 14. exposing the groove; 2. moving the mold; 21. a male module; 3. fixing a mold; 31. a die cavity; 32. a mounting frame; 321. a thread groove; 33. a cavity; 4. a first cylinder; 41. a second cylinder; 411. a slider; 42. a base; 421. a chute; 43. a claw arm base plate; 431. a linear motor; 4311. inserting the column; 432. a sleeve; 44. a rotating assembly; 441. an annular rack; 442. a gear; 443. a secondary transmission shaft; 444. a secondary commutator; 445. a primary transmission shaft; 446. a first stage commutator; 447. a drive motor; 45. a material receiving box; 451. a material receiving groove; 452. a buffer layer; 453. a bevel; 46. a connecting rod; 461. a threaded rod; 462. a threaded sleeve; 5. a waste bin; 51. a lifting cylinder; 52. a lifting frame; 53. cutting a plate; 531. saw teeth; 6. a control system; 61. a starting module; 62. a lateral control module; 63. a longitudinal control module; 64. a manipulator control module; 65. a waste treatment module; 66. and an automatic blanking module.

Detailed Description

The first embodiment is as follows: an injection mold for an instrument shell comprises a movable mold 2 and a fixed mold 3, as shown in fig. 2, wherein the movable mold 2 and the fixed mold 3 can be installed on an injection molding machine for injection molding.

As shown in fig. 3 and 4, the fixed mold 3 is provided with two cavity grooves 31, and the movable mold 2 is provided with two male mold blocks 21. When the fixed mold 3 and the movable mold 2 abut against each other, a cavity 33 is formed between the adjacent die groove 31 and the adjacent punch 21. The cavity 33 and the shape are the same as the instrument housing.

As shown in fig. 5 and 6, the fixed mold 3 is connected with the cylinder bodies of the first cylinders 4 at two sides, the piston rods of the two first cylinders 4 are respectively located on the same plane with the two cavity mold grooves 31, and the piston rods of the first cylinders 4 are arranged along the length direction of the insertion groove 13. The fixed die 3 is fixedly connected with a mounting frame 32 at the position close to each first air cylinder 4. Each first cylinder 4 is close to the adjacent mounting bracket 32 and is fixedly connected with a connecting rod 46, and one end of each connecting rod 46, which is far away from the adjacent first cylinder 4, is fixedly connected with a plurality of threaded rods 461. Each threaded rod 461 is connected with a threaded sleeve 462 in a threaded manner, a threaded groove 321 is formed in the position, corresponding to each threaded sleeve 462, of the mounting frame 32, and the threaded sleeve 462 can be connected in the threaded groove 321 in a threaded manner. The user can detach the first cylinder 4 from the stationary mold 3 through the mounting frame 32 and the connecting column 12, and can also play a role in positioning when the first cylinder 4 is installed.

As shown in fig. 5 and 7, the piston rods of the first cylinders 4 are fixedly connected with the cylinder bodies of the second cylinders 41, and the piston rods of the second cylinders 41 are perpendicular to the piston rods of the first cylinders 4. The bottom of the first cylinder 4 is fixedly connected with a base 42, a sliding block 411 is fixedly arranged at the position, close to the base 42, of the second cylinder 41, a sliding groove 421 is formed at the position, close to the sliding block 411, of the base 42, the sliding groove 421 is arranged along the length direction of the base 42, and the sliding block 411 is slidably connected in the sliding groove 421.

As shown in fig. 7 and 8, the piston rods of the second cylinders 41 are fixedly connected to claw arm base plates 43, and four linear motors 431 are connected to each claw arm base plate 43. An output shaft of each linear motor 431 is fixedly connected with a plug column 4311, the diameter of the plug column 4311 is smaller than that of the plug groove 13, and the plug column 4311 can extend into the plug groove 13 (see fig. 5). A sleeve 432 is fixedly connected to the outside of each linear motor 431, and the sleeve 432 is rotatably connected to the inside of the claw arm base plate 43. When the plug column 4311 extends into the plug groove 13, the output shaft of the linear motor 431 extends out, so that the plug column 4311 abuts against the plug groove 13.

As shown in fig. 7 and 8, the four linear motors 431 in the same claw arm base plate 43 are commonly connected to the rotating assembly 44. The rotating assembly 44 includes an annular rack 441 fixedly attached to the outside of each sleeve 432. Each of the annular racks 441 is engaged with a gear 442, and the gears 442 engaged with the annular racks 441 having the same axis are engaged with the same axis. The gears 442 with the same axis are fixedly connected with a secondary transmission shaft 443, and the secondary transmission shaft 443 is fixedly connected with a secondary commutator 444. The two commutators in the same claw arm base plate 43 are fixedly connected with a primary transmission shaft 445 together. The claw arm substrate 43 is fixedly connected with a driving motor 447 at a position close to the primary transmission shaft 445, an output shaft of the driving motor 447 is fixedly connected with a primary commutator 446, and the primary commutator 446 is fixedly connected to the primary transmission shaft 445. The driving motor 447 drives the first-stage transmission shaft 445 to rotate through the first-stage commutator 446, the first-stage transmission shaft 445 drives the two second-stage transmission shafts 443 to rotate through the second-stage commutator 444, the second-stage transmission shafts 443 simultaneously drive the four gears 442 to rotate, the four gears 442 simultaneously drive the four sleeves 432 to rotate, so that the linear motor 431 is driven to rotate, the inserting columns 4311 are driven to rotate, and only one power source is needed to drive the four inserting columns 4311 to act simultaneously.

As shown in fig. 5 and 9, a waste box 5 is arranged below the fixed die 3, a cylinder body of a lifting cylinder 51 is fixedly connected to one side of the waste box 5 far away from the fixed die 3, and a lifting frame 52 is fixedly connected to a piston rod of the lifting cylinder 51. Two cutting plates 53 parallel to the length direction of the inserting groove 13 are fixedly connected to one side of the lifting frame 52 close to the fixed die 3, and when the piston rod of the lifting cylinder 51 extends out, the two cutting plates 53 can abut against the surfaces, close to each other, of the two claw arm base plates 43 respectively. The two cutting plates 53 are fixedly connected with saw teeth 531 at the ends far away from the lifting frame 52. When first cylinder 4 drives claw arm base plate 43 and extracts instrument housing from cover half 3, instrument housing will congeal the material and take out from cover half 3 together, congeal the material and receive cutting plate 53 extrusion after touchhing cutting plate 53, make congeal material and instrument housing separation, congeal simultaneously in the material can fall waste bin 5, the staff of being convenient for collects. The saw teeth 531 make it easier for the cutting plate 53 to cut off the condensed material from the instrument housing, and even if the condensed material is not cut off during the extension of the piston rod of the first cylinder 4, the condensed material is cut off by the saw teeth 531 when the piston rod of the second cylinder 41 is retracted.

As shown in fig. 7 and 10, a material receiving box 45 is fixedly connected to the base 42 corresponding to the bottom of the second cylinder 41, the claw arm substrate 43 can be located right above the material receiving box 45, and a material receiving groove 451 is formed in the top of the material receiving box 45. The material receiving box 45 is fixedly connected with an elastic buffer layer 452, and the buffer layer 452 is made of elastic materials such as rubber. The upper surface of the buffer layer 452 is provided with an inclined surface 453 inclined downwards towards the other end along one end of the material receiving box 45 close to the claw arm substrate 43. The material receiving box 45 is used for receiving the instrument shell falling from the claw arm base plate 43, and is convenient for workers to collect. The buffer layer 452 can effectively reduce the impact of the falling of the instrument housing, and the inclined surface 453 enables the instrument housing to fall onto the buffer layer 452 and then to slide along the inclined surface 453 to the bottom of the inclined surface 453, so that collision with the next falling instrument housing is avoided.

As shown in fig. 11, the first cylinder 4, the second cylinder 41, the lifting cylinder 51, the driving motor 447 and the linear motor 431 are commonly connected to a control system 6, and the control system 6 includes a starting module 61, a transverse control module 62, a longitudinal control module 63, a manipulator control module 64, an automatic blanking module 66 and a waste material treatment module 65.

As shown in fig. 11, the start module 61 sends a start signal to the lateral control module 62 and the waste disposal module 65 after receiving a start command input from the outside. After receiving the start signal, the transverse control module 62 controls the piston rods of the two second air cylinders 41 to extend until the two claw arm substrates 43 extend to positions opposite to the die groove 31, and sends an in-place signal to the longitudinal control module 63. After receiving the in-place signal, the longitudinal control module 63 controls the piston rods of the two first cylinders 4 to contract until the insertion columns 4311 extend into the insertion grooves 13, and sends a reaching signal to the manipulator control module 64. The robot control module 64 receives the arrival signal, controls the output shafts of all the linear motors 431 to extend, and sends a demolding signal to the longitudinal control module 63.

As shown in fig. 11, after receiving the mold release signal, the longitudinal control module 63 controls the piston rods of the two first cylinders 4 to extend, and then the longitudinal control module 63 sends a reset signal to the transverse control module 62 and the robot control module 64. The transverse control module 62 controls the piston rods of the two second air cylinders 41 to retract after receiving the reset signal, and simultaneously sends a blanking signal to the automatic blanking module 66. The robot control module 64 receives the reset signal and controls the retraction of the output shafts of all the linear motors 431. The automatic blanking module 66 receives the blanking signal and controls the output shaft of the driving motor 447 to rotate for a period of time, so that all the linear motors 431 rotate downwards for a period of time and then rotate back to the original position.

After the injection molding is completed, the worker only needs to input a starting instruction to the control system 6, and the control system 6 can automatically clamp the instrument shell out and move to the two sides of the mold. After all the linear motors 431 rotate downwards, the insertion columns 4311 are driven to incline downwards, and at the moment, the instrument shell slides downwards from the insertion columns 4311, so that blanking is completed.

As shown in fig. 11, the waste disposal module 65 receives the start signal output by the start module 61 and the reset signal output by the longitudinal control module 63. When the waste treatment module 65 receives the starting signal, the piston rod of the lifting cylinder 51 is controlled to extend. When the waste material treatment module 65 receives the reset signal, the piston rod of the lifting cylinder 51 is controlled to retract. When first cylinder 4 drives claw arm base plate 43 and extracts instrument housing from cover half 3, instrument housing will congeal the material and take out from cover half 3 together, congeal the material and receive cutting plate 53 extrusion after touchhing cutting plate 53, make congeal material and instrument housing separation, congeal simultaneously in the material can fall waste bin 5, the staff of being convenient for collects.

The use method comprises the following steps: the worker mounts the movable mold 2 and the fixed mold 3 on the injection molding machine, screws the thread bush 462 into the thread groove 321, and then controls the injection molding machine to start injection molding. After the injection molding is completed, a starting signal is input to the control system 6, and the control system 6 can automatically clamp the instrument shell out and move to the two sides of the mold. The safety is high, the production efficiency is effectively improved, and the labor force is saved.

Example two: an injection molding process of an instrument shell comprises the following specific steps:

first, the movable mold 2 and the fixed mold 3 are mounted on the injection molding machine, and the threaded sleeve 462 is screwed into the threaded groove 321 to fix the first cylinder 4.

And secondly, adjusting the initial positions of the first air cylinder 4, the second air cylinder 41 and the claw arm base plates 43 to enable the two claw arm base plates 43 to be respectively positioned at two sides of the movable mold 2 and positioned on the same plane with the two concave mold grooves 31.

And thirdly, controlling the movable mold 2 and the fixed mold 3 to be closed and starting injection molding by the injection molding machine.

And fourthly, after the injection molding is finished, separating the movable mold 2 from the fixed mold 3, and inputting a starting signal to the control system 6.

And fifthly, the control system 6 controls the piston rod of the second air cylinder 41 to extend out, the claw arm base plate 43 extends to the female die groove 31, and simultaneously the piston rod of the lifting air cylinder 51 extends out, so that the lifting frame 52 is lifted.

Sixthly, the control system 6 controls the piston rod of the first cylinder 4 to contract, so that the insertion columns 4311 are all inserted into the insertion groove 13.

Seventh, the control system 6 controls the output shaft of the linear motor 431 to extend, so that the inserting column 4311 is tightly pressed in the inserting groove 13.

And eighthly, the control system 6 controls the piston rod of the first air cylinder 4 to extend out, so that the inserting column 4311 drives the instrument shell to separate from the fixed die 3, the instrument shell is in contact with the cutting plate 53 in the moving process, and the solidified material is separated from the instrument shell and falls into the waste bin 5.

And ninthly, the control system 6 controls the piston rod of the second cylinder 41 to retract, so as to drive the claw arm substrate 43 to move to the position above the material receiving box 45, and meanwhile, the output shaft of the linear motor 431 retracts, so that the insertion column 4311 is loosened.

Tenth, the control system 6 controls the driving motor 447 to drive all the linear motors 431 to rotate downward, so that the plugging columns 4311 incline downward, the instrument housing falls into the material receiving box 45 from the plugging columns 4311, and the driving motor 447 controls all the linear motors 431 to rotate back to the original position to complete the resetting.

When the mould processing instrument casing, the staff need not be close to the mould and can accomplish the unloading to the instrument casing, regularly collect the instrument casing that processes in connecing workbin 45 can, effectively practice thrift the labour, improve production efficiency, the security is high.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered by the protection scope of the utility model.

Claims

1. The utility model provides an instrument casing injection mold, includes movable mould (2) and cover half (3), and two die cavity (31) have been seted up in cover half (3), and movable mould (2) have set firmly two convex module (21), and when cover half (3) and movable mould (2) butt each other, adjacent die cavity (31) are formed with die cavity (33), its characterized in that with convex module (21): the two sides of the fixed die (3) are connected with cylinder bodies of first cylinders (4), piston rods of the two first cylinders (4) are located on the same plane with the two concave die grooves (31) respectively, the piston rods of the first cylinders (4) are arranged along the length direction of the insertion groove (13), the piston rods of the first cylinders (4) are fixedly connected with cylinder bodies of second cylinders (41), the piston rods of the second cylinders (41) are perpendicular to the piston rods of the first cylinders (4), the piston rods of the second cylinders (41) are fixedly connected with claw arm base plates (43), each claw arm base plate (43) is connected with four linear motors (431), output shafts of the linear motors (431) are fixedly connected with insertion columns (4311), the diameters of the insertion columns (4311) are smaller than those of the insertion groove (13), and the insertion columns (4311) can extend into the insertion groove (13);

the first air cylinder (4), the second air cylinder (41) and the linear motor (431) are connected with a control system (6) together, and the control system (6) comprises a starting module (61), a transverse control module (62), a longitudinal control module (63) and a manipulator control module (64);

the starting module (61) receives a starting instruction input from the outside and then sends a starting signal to the transverse control module (62);

the transverse control module (62) receives the starting signal and then controls the piston rods of the two second cylinders (41) to extend until the two claw arm substrates (43) extend to the position opposite to the female die groove (31) and send in-place signals to the longitudinal control module (63), and the transverse control module (62) receives the reset signal and then controls the piston rods of the two second cylinders (41) to retract;

the longitudinal control module (63) receives the in-place signal and then controls piston rods of the two first cylinders (4) to contract until the plug-in posts (4311) extend into the plug-in groove (13), and sends a reaching signal to the manipulator control module (64), the longitudinal control module (63) receives the demolding signal and then controls the piston rods of the two first cylinders (4) to extend out, and then the longitudinal control module (63) sends a reset signal to the transverse control module (62) and the manipulator control module (64);

the manipulator control module (64) receives the arrival signal and then controls the output shafts of all the linear motors (431) to extend out, meanwhile sends a demoulding signal to the longitudinal control module (63), and the manipulator control module (64) receives the reset signal and then controls the output shafts of all the linear motors (431) to retract.

2. The instrument housing injection mold of claim 1, wherein: a sleeve (432) is fixedly connected outside each linear motor (431), the sleeves (432) are rotatably connected in the claw arm base plate (43), and four linear motors (431) in the same claw arm base plate (43) are jointly connected with a rotating assembly (44) for driving all the linear motors (431) to rotate simultaneously;

the control system (6) further comprises an automatic blanking module (66), the automatic blanking module (66) is connected with the transverse control module (62), when the transverse control module (62) controls piston rods of the two second cylinders (41) to retract, the transverse control module (62) sends blanking signals to the automatic blanking module (66), and after the automatic blanking module (66) receives the blanking signals, the rotating assembly (44) is controlled to drive all the linear motors (431) to rotate downwards for a period of time and then rotate back to the original position.

3. The instrument housing injection mold of claim 2, wherein: the rotating assembly (44) comprises annular racks (441) fixedly connected to the outside of each sleeve (432), each annular rack (441) is meshed with a gear (442), the axes of the gears (442) meshed with the annular racks (441) with the same axes are the same, a second-stage transmission shaft (443) is fixedly connected with the gears (442) with the same axes, second-stage commutators (444) are fixedly connected with the second-stage transmission shaft (443), a first-stage transmission shaft (445) is fixedly connected with two commutators in the same claw arm substrate (43), a driving motor (447) is fixedly connected to the position, close to the first-stage transmission shaft (445), of the claw arm substrate (43), an output shaft of the driving motor (447) is fixedly connected with the first-stage commutators (446), and the first-stage commutators (446) are fixedly connected to the first-stage transmission shaft (445);

the automatic blanking module (66) receives the blanking signal and then controls the output shaft of the driving motor (447) to rotate for a period of time and then reversely rotate back to the original position.

4. The instrument housing injection mold of claim 2, wherein: a material receiving box (45) is arranged at the bottom of the second air cylinder (41), the claw arm base plate (43) can be located right above the material receiving box (45), and a material receiving groove (451) is formed in the top of the material receiving box (45).

5. The instrument housing injection mold of claim 4, wherein: the inner part of the material receiving box (45) is fixedly connected with an elastic buffer layer (452).

6. The instrument housing injection mold of claim 5, wherein: the upper surface of the buffer layer (452) is provided with an inclined surface (453) which inclines downwards towards the other end along one end of the material receiving box (45) close to the claw arm substrate (43).

7. The instrument housing injection mold of claim 1, wherein: a waste box (5) is arranged below the fixed die (3), one side, far away from the fixed die (3), of the waste box (5) is fixedly connected with a cylinder body of a lifting cylinder (51), a piston rod of the lifting cylinder (51) is fixedly connected with a lifting frame (52), one side, close to the fixed die (3), of the lifting frame (52) is fixedly connected with two cutting plates (53) parallel to the length direction of the insertion groove (13), and when the piston rod of the lifting cylinder (51) extends out, the two cutting plates (53) can abut against one surfaces, close to each other, of the two claw arm base plates (43) respectively;

the control system (6) further comprises a waste material processing module (65), the waste material processing module (65) receives a starting signal output by the starting module (61) and a reset signal output by the longitudinal control module (63), when the waste material processing module (65) receives the starting signal, a piston rod of the lifting cylinder (51) is controlled to extend out, and when the waste material processing module (65) receives the reset signal, the piston rod of the lifting cylinder (51) is controlled to retract.

8. The instrument housing injection mold of claim 7, wherein: one ends of the two cutting plates (53) far away from the lifting frame (52) are fixedly connected with saw teeth (531).

9. The instrument housing injection mold of claim 1, wherein: the fixed die (3) is close to the equal fixedly connected with mounting bracket (32) in every first cylinder (4) position department, every first cylinder (4) is close to the equal fixedly connected with connecting rod (46) in adjacent mounting bracket (32) position department, the equal fixedly connected with of a plurality of threaded rods (461) in adjacent first cylinder (4) one end is kept away from in every connecting rod (46), the equal threaded connection of every threaded rod (461) has thread bush (462), thread groove (321) have all been seted up in mounting bracket (32) corresponding every thread bush (462) position department, thread bush (462) can be threaded connection in thread groove (321).

10. The injection molding process of the instrument housing injection mold according to claim 1, comprising the steps of:

firstly, mounting a movable die (2) and a fixed die (3) on an injection molding machine, screwing a thread sleeve (462) into a thread groove (321) and fixing a first air cylinder (4);

adjusting the initial positions of the first cylinder (4), the second cylinder (41) and the claw arm base plates (43) to enable the two claw arm base plates (43) to be respectively positioned on two sides of the movable die (2) and positioned on the same plane with the two concave die grooves (31);

thirdly, controlling the movable mold (2) and the fixed mold (3) to be closed and starting injection molding by the injection molding machine;

fourthly, after the injection molding is finished, the movable mold (2) is separated from the fixed mold (3), and a starting signal is input to the control system (6);

fifthly, the control system (6) controls the piston rod of the second air cylinder (41) to extend out, the claw arm base plate (43) extends to the concave die groove (31), and meanwhile, the piston rod of the lifting air cylinder (51) extends out, so that the lifting frame (52) is lifted;

sixthly, the control system (6) controls the piston rod of the first air cylinder (4) to contract, so that the insertion columns (4311) are all inserted into the insertion groove (13);

seventhly, the control system (6) controls the output shaft of the linear motor (431) to extend out, so that the insertion column (4311) is tightly propped against the insertion groove (13);

eighthly, the control system (6) controls a piston rod of the first air cylinder (4) to extend out, so that the inserting column (4311) drives the instrument shell to be separated from the fixed die (3), the instrument shell is abutted against the cutting plate (53) in the moving process, and the solidified material is separated from the instrument shell and falls into the waste bin (5);

ninthly, the control system (6) controls a piston rod of the second air cylinder (41) to retract to drive the claw arm substrate (43) to move to the position above the material receiving box (45), and meanwhile, an output shaft of the linear motor (431) retracts to release the insertion column (4311);

and ten, the control system (6) controls the driving motors (447) to drive all the linear motors (431) to rotate downwards, so that the inserting columns (4311) incline downwards, the instrument shell falls into the material receiving box (45) from the inserting columns (4311), and the driving motors (447) control all the linear motors (431) to rotate back to the original position to finish resetting.