CN116811165A - Motor direct-drive type injection molding machine mold locking structure and injection molding machine with same - Google Patents
Motor direct-drive type injection molding machine mold locking structure and injection molding machine with same Download PDFInfo
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- CN116811165A CN116811165A CN202311101599.3A CN202311101599A CN116811165A CN 116811165 A CN116811165 A CN 116811165A CN 202311101599 A CN202311101599 A CN 202311101599A CN 116811165 A CN116811165 A CN 116811165A
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 50
- 230000000670 limiting effect Effects 0.000 claims description 80
- 230000007246 mechanism Effects 0.000 claims description 39
- 238000001514 detection method Methods 0.000 claims description 22
- 230000000712 assembly Effects 0.000 claims description 14
- 238000000429 assembly Methods 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 14
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 10
- 238000000465 moulding Methods 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/66—Mould opening, closing or clamping devices mechanical
- B29C45/661—Mould opening, closing or clamping devices mechanical using a toggle mechanism for mould clamping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/80—Measuring, controlling or regulating of relative position of mould parts
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of injection molding, in particular to a motor direct-drive type injection molding machine mold locking structure and an injection molding machine with the same.
Description
Technical Field
The invention relates to the technical field of injection molding, in particular to a motor direct-drive type injection molding machine mold locking structure and an injection molding machine with the same.
Background
The injection molding machine is generally provided with a mold locking mechanism, the mold locking mechanism in the prior art is generally completed by driving a connecting rod through an oil cylinder, as disclosed in Chinese patent application CN107336413A, the mold locking mechanism comprises a hydraulic cylinder and a mold, wherein the hydraulic cylinder is fixed on a base and further comprises a first locking rod and a second locking rod, one end of the first locking rod is hinged on the mold, the other end of the first locking rod is hinged with one end of the second locking rod, the other end of the second locking rod is hinged with the base, the end part of a piston rod of the hydraulic cylinder is provided with a hinging seat, one end of the connecting rod is rotatably connected to the hinging seat, the other end of the connecting rod is hinged with the bottom of the second locking rod, and when the mold locking mechanism is used, the connecting rod is moved to a certain position by the movement of the piston rod of the hydraulic rod, and the first locking rod and the second locking rod are positioned on the same straight line; because different workpieces need to use dies with different thicknesses, when the dies are replaced, the tail plate is required to be driven to move through the adjusting mechanism, the connecting rod mechanism and the two plates are required to be driven to move through the tail plate, therefore, the distance between the two plates and the head plate is adjusted, the dies between the two plates and the head plate are clamped, and meanwhile, enough locking force is available, the adjusting mechanism can directly drive the tail plate to move, so that the gap between the two plates and the head plate after adjustment can possibly have errors, the locking force of the dies can not be kept constant, a mechanism for detecting the locking force is not provided, meanwhile, the dies are required to be kept stable due to the clamping force, the damage of the dies can be caused due to the overlarge pressure, the loosening of the two plates can be caused due to the pressure of injection molding when the dies are subjected to injection molding after the die clamping, the injection molding effect is poor, the mode that the hinged seat drives the connecting rod to move is easy to loosen after long-time use, the pressure of the dies can not be kept constant, the locking force of the dies can not be kept stable for the dies, and the injection molding effect of the injection molding machine can not be influenced.
Disclosure of Invention
To above-mentioned problem, provide a motor direct-drive injection molding machine mode locking structure and injection molding machine that has this kind of structure, detect through the position after detecting the module to head rod and second connecting rod mode locking, ensure that it can reach the assigned position when locking each time, ensure the accurate compound die of mould ability and keep sufficient mode locking power on two boards and the head board from this, improve mode locking mechanism and to the mode locking precision of mould, fix the position of drive plate through first spacing subassembly, make it keep stable, ensure that two boards can not take place not hard up at the in-process of moulding plastics, improve the stability of equipment, improve the effect of moulding plastics.
In order to solve the problems in the prior art, the motor direct-drive injection molding machine mold locking structure comprises a sliding rail, a tail plate, two plates and a head plate, wherein the tail plate, the two plates and the head plate are arranged on the sliding rail; the linear driver is positioned at one end of the tail plate far away from the head plate; the driving plate is arranged on the tail plate in a sliding way, the sliding direction of the driving plate is parallel to the sliding direction of the tail plate, and the driving plate is in transmission connection with the linear driver; the two connecting rod assemblies are in mirror symmetry states and are respectively positioned above and below the driving plate, and both the two connecting rod assemblies are in transmission connection with the driving plate; the top and the bottom of one side of the tail plate and the two plates, which are close to each other, are respectively provided with a connector hinged with the two connecting rod assemblies; the connecting rod mechanism also comprises a first limiting component for fixing the moved driving plate and a detection component for detecting whether the displacement position of the connecting rod component is in place or not after the mold locking; the first limiting component can be rotationally arranged on the connecting head at the bottom of the tail plate, and the detection component is located beside the first limiting component.
Preferably, the first limiting component comprises a swinging rod, the swinging rod can be sleeved on a connecting head at the bottom of the tail plate in a rotating mode, one end, away from the connecting head, of the swinging rod is fixedly connected with a limiting rod in a horizontal state, one side, close to the two plates, of the driving plate is provided with a fixing plate, an arc-shaped first limiting groove is formed in the fixing plate, an opening is formed in the bottom of the first limiting groove, and the first limiting groove is matched with the limiting rod in a sliding mode.
Preferably, the fixed plate and the swinging rod are both provided with two, the two fixed plates are respectively positioned at two sides of the driving plate, the two swinging rods are respectively positioned at two sides of the connector at the bottom of the tail plate, the middle parts of the two swinging rods are both hinged with the driving rod, one ends of the driving rods, which are far away from the swinging rods, are both provided with sliding blocks, a connecting plate is arranged between the two sliding blocks, and the sliding directions of the two sliding blocks are parallel to the sliding direction of the tail plate.
Preferably, the opening of the first limiting groove is provided with flaring which expands towards two sides, and the flaring is in an arc-shaped structure.
Preferably, the bottom of tailboard still is provided with first rotary driving motor, lead screw and guide bar, and lead screw and guide bar all are the horizontally and set up respectively in the bottom both sides of tailboard, and the axis of lead screw and guide bar all extends along the direction of slide rail, and the lead screw can pivoted sets up on the tailboard, and on lead screw and guide bar were located respectively to two sliders, lead screw and one of them slider screw-thread fit, guide bar and another one slider sliding fit, and first rotary driving motor is located the tailboard, and the lead screw is connected with first rotary driving motor transmission.
Preferably, the screw rod and the guide rod are of hollow structures, two support rods which are respectively arranged coaxially with the axes of the screw rod and the guide rod are arranged on the two plates, the two support rods are respectively sleeved in the screw rod and the guide rod in a sliding manner, the support rods connected with the screw rod are rotatably arranged on the two plates, and the support rods are of hexagonal prism structures.
Preferably, a limiting block for limiting the position of the sliding block is arranged at one end, close to the two plates, of the screw rod and the guide rod.
Preferably, the detection component is located on the connecting plate, and the detection component is a pressure sensor.
Preferably, the detection assembly further comprises a second limiting assembly with the first limiting assembly being in mirror symmetry, and the fixing plate is further provided with a second limiting groove which is in mirror symmetry with the first limiting groove.
A motor direct-drive injection molding machine comprises the motor direct-drive injection molding machine mold locking structure.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the connecting rod assembly drives the two plates to lock the die for the first time, the detection assembly detects the positions of the first connecting rod and the second connecting rod after die locking, so that the positions of the two plates and the die on the head plate reach the designated positions during die locking each time, accurate die locking of the two plates and the die on the head plate is ensured, and enough die locking force is maintained, and if the detection positions are not in place, the positions of the tail plates are regulated again through the regulating mechanism until the positions meet the numerical values set by the detection assembly; if the detection position is accurate, then fix the position of drive plate through first spacing subassembly, drive link assembly's position through the drive plate and keep fixed, realize from this that two boards remain invariable pressure throughout, ensure the stability of two boards to the mode locking power of mould, ensure at the in-process of moulding plastics that two boards can not take place not hard up, improve equipment's stability, improve the effect of moulding plastics.
Drawings
FIG. 1 is a schematic perspective view of a mold locking structure of a motor direct-drive injection molding machine;
FIG. 2 is a side view of a motor direct drive injection molding machine mold locking structure;
FIG. 3 is a top view of a motor direct drive injection molding machine mold locking structure;
FIG. 4 is a side view of a motor direct drive injection molding machine in locking a mold of a mold locking structure;
FIG. 5 is a schematic diagram showing a perspective structure of a motor direct-drive injection molding machine when the mold locking structure contracts by two plates;
FIG. 6 is a schematic diagram of a three-dimensional structure of a tail plate, two plates and a link mechanism in a mold locking structure of a motor direct-drive injection molding machine;
FIG. 7 is a schematic perspective view of a tail plate and a link mechanism in a mold locking structure of a motor direct-drive injection molding machine;
FIG. 8 is a schematic perspective view of a driving plate and a first limiting assembly in a mold locking structure of a motor direct-drive injection molding machine;
FIG. 9 is a schematic perspective view of a first limiting assembly in a mold locking structure of a motor direct-drive injection molding machine;
fig. 10 is an enlarged view at a in fig. 6;
fig. 11 is a schematic perspective view of a driving plate in a mold locking structure of a motor direct-drive injection molding machine.
The reference numerals in the figures are: 1-a sliding rail; 11-head plate; 12-two plates; 121-supporting rods; 2-tail plate; 21-an adjustment mechanism; 22-connectors; 23-a first limiting assembly; 231-swinging rod; 232-a limit rod; 24-driving rod; 241-a slider; 242-connecting plates; 243-a first rotary drive motor; 244-screw rod; 2441-limiting block; 245-a guide bar; 25-a second limiting assembly; 26-a detection assembly; 27-a pressure sensor; 3-linkage mechanism; 31-linear drive; 32-a drive plate; 321-fixing plates; 3211-a first limit groove; 3212-opening; 3213-flaring; 3214-a second limit groove; 33-a connecting rod assembly; 331-a first connecting rod; 332-a second connecting rod; 333-drive rod.
Detailed Description
The invention will be further described in detail with reference to the drawings and the detailed description below, in order to further understand the features and technical means of the invention and the specific objects and functions achieved.
As shown in fig. 1 to 8: the utility model provides a motor direct-drive injection molding machine mode locking structure, including slide rail 1 and set up tailboard 2, two boards 12 and the head board 11 on slide rail 1, head board 11 fixed connection is on one of them end of slide rail 1, tailboard 2 slidable set up on the other end of slide rail 1, be provided with on the tailboard 2 can drive tailboard 2 along slide rail 1 moving adjustment mechanism 21, two boards 12 are located between tailboard 2 and the head board 11, and be provided with the link mechanism 3 that is used for the mode locking between two boards 12 and the tailboard 2, link mechanism 3 includes linear drive 31, drive plate 32 and two link assemblies 33; the linear actuator 31 is located at an end of the tail plate 2 remote from the head plate 11; the driving plate 32 is slidably arranged on the tail plate 2, the sliding direction of the driving plate 32 is parallel to the sliding direction of the tail plate 2, and the driving plate 32 is in transmission connection with the linear driver 31; the two connecting rod assemblies 33 are in mirror symmetry states and are respectively positioned above and below the driving plate 32, and the two connecting rod assemblies 33 are in transmission connection with the driving plate 32; the top and the bottom of the side, which is close to each other, of the tail plate 2 and the two plates 12 are respectively provided with a connector 22 hinged with two connecting rod assemblies 33; the link mechanism 3 further comprises a first limiting component 23 for fixing the moved driving plate 32 and a detection component 26 for detecting whether the displacement position of the link component 33 after the mold locking is in place; the first limiting component 23 is rotatably arranged on the connector 22 at the bottom of the tail plate 2, and the detection component 26 is positioned beside the first limiting component 23; the first limiting assembly (23) further comprises a deviation rectifying mechanism.
The connecting rod assembly 33 includes a first connecting rod 331, a second connecting rod 332 and a driving rod 333, wherein the first connecting rod 331 is hinged on the connector 22 of the tail plate 2, the second connecting rod 332 is hinged on the connector 22 of the two plates 12, one ends of the first connecting rod 331 and the second connecting rod 332, which are close to each other, are hinged to each other, one end of the driving rod 333 is hinged to the middle of the first connecting rod 331, and the other end of the driving rod 333 is hinged to the driving plate 32. The two plates 12 and the head plate 11 are both provided with the mould, the linear driver 31 is started, the linear driver 31 is preferably an oil cylinder, the output shaft of the linear driver 31 drives the driving plate 32 connected with the linear driver, the two connecting rod assemblies 33 connected with the linear driver are driven by the movement of the driving plate 32, the transmission rods 333 on the two connecting rod assemblies 33 move, the movement of the transmission rods 333 drives the first connecting rod 331 hinged with the transmission rods 333, the first connecting rod 331 rotates by taking the connecting head 22 on the tail plate 2 as the center of a circle, the movement of the first connecting rod 331 drives the second connecting rod 332 hinged with the first connecting rod 332, the second connecting rod 332 rotates by taking the connecting head 22 on the two plates 12 as the center of a circle, the first connecting rod 331 and the second connecting rod 332 are gradually changed into a straight state from a V-shaped state, the second connecting rod 332 drives the two plates 12 to slide towards the head plate 11 along the direction of the slide rail 1, the distance between the two plates 12 and the tail plate 2 is pulled until the mould on the two plates 12 and the mould on the head plate 11 are clamped, and the mould is locked. Because different workpieces need to use dies with different thicknesses, when the dies are replaced, the adjusting mechanism 21 needs to drive the tail plate 2 to move, the adjusting mechanism 21 is composed of a plurality of adjusting screw rods, the tail plate 2 is sleeved on the adjusting screw rods and is in threaded fit with the adjusting screw rods, the driving motor drives the adjusting screw rods to rotate during adjustment, the tail plate 2 is driven to slide along the axis direction of the adjusting screw rods, the tail plate 2 drives the connecting rod mechanism 3 and the two plates 12 to move, the distance between the two plates 12 and the head plate 11 is adjusted, the dies between the two plates 12 and the head plate 11 are clamped, and meanwhile, the adjusting mechanism 21 has enough locking force, however, due to the fact that the adjusting mechanism 21 directly drives the tail plate 2 to move, the gap between the two plates 12 and the head plate 11 after adjustment possibly has errors, no mechanism for detecting the tail plate is arranged, meanwhile, due to the fact that the locking force is required to keep stable, the driving plate 32 drives the two connecting rod assemblies 33 to move in a mode of moving for a plurality of times or is loose when damaged, the locking force is insufficient, and the injection molding pressure during injection molding possibly causes the loosening of the two plates 12, and the injection molding machine is affected. The first connecting rod 331 and the second connecting rod 332 of the connecting rod assembly 33 are gradually changed from the V-shaped state to the in-line state when the connecting rod mechanism 3 is locked, the positions of the first connecting rod 331 and the second connecting rod 332 after the mold is locked are detected through the detection assembly 26, the positions of the first connecting rod 331 and the second connecting rod 332 can reach the designated positions when the molds are locked each time, the molds on the two plates 12 and the head plate 11 can be accurately locked, and enough mold locking force is kept, so that preliminary locking of the molds is realized. If the detection position is not in place, the position of the tail plate 2 is regulated again through the regulating mechanism 21 until the detection position accords with the value set by the detection assembly 26; if the detection position is accurate, the connector 22 on the tail plate 2 is used as the center of a circle to rotate through the first limiting component 23, the position of the driving plate 32 is fixed through the first limiting component 23, the positions of the first connecting rod 331 and the second connecting rod 332 are locked through the position of the driving plate 32, and therefore the positions of the two plates 12 are fixed, the locking force of the two plates 12 to the mould is ensured to be kept in an optimal state, the device is more durable, a certain deviation correcting effect is achieved, the constant locking force of the two plates 12 when pressing the mould is ensured, the service life of the device is prolonged, the stability of the device is improved, and the injection moulding effect is improved. The detection assembly 26 detects the positions of the first connecting rod 331 and the second connecting rod 332 after mold locking, so that the state of the equipment can be monitored more intuitively compared with the prior art, the two plates 12 can be kept constant for mold locking force, and the stability is further improved.
As shown in fig. 2, 4, 8 to 11: the first limiting assembly 23 comprises a swinging rod 231, the swinging rod 231 is sleeved on a connector 22 at the bottom of the tail plate 2 in a rotatable mode, one end, away from the connector 22, of the swinging rod 231 is fixedly connected with a limiting rod 232 in a horizontal state, one side, close to the two plates 12, of the driving plate 32 is provided with a fixing plate 321, the fixing plate 321 is provided with a first limiting groove 3211 in an arc shape, the bottom of the first limiting groove 3211 is provided with an opening 3212, the first limiting groove 3211 is matched with the limiting rod 232 in a sliding mode, the deviation rectifying mechanism comprises a flaring 3213 which is arranged on the opening 3212 of the first limiting groove 3211 and extends towards two sides, and the flaring 3213 is in an arc-shaped structure.
The swinging rod 231 is positioned at the bottom of the tail plate 2 in a horizontal state in an initial state, after the driving plate 32 is driven to a designated position by the linear driver 31, the swinging rod 231 is rotated to one side of the driving plate 32 by rotating the swinging rod 231 by taking the connector 22 at the bottom of the tail plate 2 as a circle center, the rotation of the swinging rod 231 drives the limiting rod 232 connected with the swinging rod 231, and the limiting rod 232 can slide into the fixed plate 321 along the opening 3212 of the first limiting groove 3211, so that the position of the driving plate 32 is fixed, the driving plate 32 cannot move, the mold locking force of the two plates 12 and the head plate 11 during mold closing is ensured, and the stability of equipment is ensured. When the limit of the driving plate 32 needs to be released, the swinging rod 231 drives the limit rod 232 to slide out from the first limit groove 3211 of the fixed plate 321 by reversely rotating the swinging rod 231, so that the swinging rod 231 rotates to the bottom of the tail plate 2, and the limit of the driving plate 32 is released, so that the driving plate 32 can be driven again by the linear driver 31.
Because the linear driver 31 possibly has errors after driving the driving plate 32 to move every time, through the arrangement of the flaring 3213, when the limiting rod 232 slides into the first limiting groove 3211, the limiting rod 232 can accurately slide into the first limiting groove 3211 through sliding along the flaring 3213, so that the limiting rod can limit the driving plate 32 and has a certain deviation rectifying effect, the moving position of the driving plate 32 is prevented from being too large or too small, and the limiting stability of the driving plate 32 is further improved.
As shown in fig. 2 to 11: the fixed plate 321 and the swinging rods 231 are respectively provided with two fixed plates 321, the two fixed plates 321 are respectively positioned on two sides of the driving plate 32, the two swinging rods 231 are respectively positioned on two sides of the connector 22 at the bottom of the tail plate 2, the middle parts of the two swinging rods 231 are respectively hinged with the driving rods 24, one ends, far away from the swinging rods 231, of the driving rods 24 are respectively provided with a sliding block 241, a connecting plate 242 is arranged between the two sliding blocks 241, and the sliding directions of the two sliding blocks 241 are parallel to the sliding direction of the tail plate 2.
Through the setting of two fixed plates 321 and two swinging arms 231, can remove together through synchronous drive two swinging arms 231 for stop lever 232 on two swinging arms 231 slides to in fixed plate 321's the first spacing groove 3211, makes the application of force when spacing to drive plate 32 more balanced, improves the stability when drive plate 32 is spacing, ensures that drive plate 32 can not become flexible. Through the setting of slider 241 and actuating lever 24, can drive actuating lever 24 through the removal of slider 241, drive rather than articulated swinging arms 231 through actuating lever 24, make swinging arms 231 rotate, when slider 241 moves towards tailboard 2, actuating lever 24 jack-up swinging arms 231 rotates towards actuating plate 32, when slider 241 moves towards two boards 12, actuating lever 24 drives swinging arms 231 and rotates towards the bottom of tailboard 2, make it keep being the horizontality, ensure that it can shrink in the below of tailboard 2 when not spacing to actuating plate 32, rational utilization space reduces the interference to other parts, when actuating lever 24 drives swinging arms 231 and slides into first spacing groove 3211, actuating lever 24 and swinging arms 231 are the triangle structure, stability when making it fixed to actuating plate 32 is further improved. By the arrangement of the connection plate 242, the two slide blocks 241 can move synchronously, so that the two swinging rods 231 can synchronously limit the driving plate 32.
As shown in fig. 2, 6 to 10: the bottom of tailboard 2 still is provided with first rotary driving motor 243, lead screw 244 and guide bar 245 are the bottom both sides that all are the horizontality set up respectively in tailboard 2, the axis of lead screw 244 and guide bar 245 all extends along the direction of slide rail 1, lead screw 244 rotatable setting is on tailboard 2, two sliders 241 overlap respectively and locate on lead screw 244 and guide bar 245, lead screw 244 and one of them slider 241 screw-thread fit, guide bar 245 and another slider 241 sliding fit, first rotary driving motor 243 is located tailboard 2, and lead screw 244 is connected with first rotary driving motor 243 transmission.
By starting the first rotary driving motor 243, the output shaft of the first rotary driving motor 243 drives the screw rod 244 in transmission connection with the first rotary driving motor, the screw rod 244 rotates to drive the slide block 241 in threaded fit with the first rotary driving motor, the slide block 241 drives the slide block 241 on the guide rod 245 through the connecting plate 242, the slide block 241 can synchronously slide along the axes of the screw rod 244 and the guide rod 245, the driving rod 24 hinged with the slide block 241 is driven through the sliding of the slide block 241, the swinging rod 231 is driven by the driving rod 24, the swinging rod 231 slides into the first limiting groove 3211 of the fixed plate 321, the driving plate 32 is limited, the self-locking characteristic is realized through the transmission of the screw rod 244, the moving slide block 241 can be kept stable, the supporting stability of the swinging rod 231 is further improved, and the limiting effect on the driving plate 32 is further improved.
As shown in fig. 2 to 5 and fig. 8 to 11: the lead screw 244 and the guide rod 245 are both hollow structures, two support rods 121 which are respectively arranged coaxially with the axes of the lead screw 244 and the guide rod 245 are arranged on the two plates 12, the two support rods 121 are respectively sleeved in the lead screw 244 and the guide rod 245 in a sliding way, wherein the support rods 121 connected with the lead screw 244 are rotatably arranged on the two plates 12, and are of a hexagonal prism structure.
Because the lead screw 244 and the guide rod 245 are arranged on the tail plate 2, the stability is poor, the distance between the tail plate 2 and the two plates 12 can be continuously changed along with the movement of the connecting rod mechanism 3, the lead screw 244 and the guide rod 245 can be stably arranged between the tail plate 2 and the two plates 12 through the arrangement of the support rods 121, and the lead screw 244 and the guide rod 245 can not influence the movement between the two plates 12 and the tail plate 2 when the distance between the two plates 12 and the tail plate 2 is reduced through the arrangement of hollow structures of the lead screw 244 and the guide rod 245 through the support rods 121. Because the lead screw 244 can be rotationally arranged on the tail plate 2, the lead screw 244 and the guide rod 245 can still keep rotating when contracting due to the arrangement of the hexagonal prism structure of the support rod 121, the driving effect of the lead screw 244 on the sliding block 241 is not influenced, and the stability of the operation of the first limiting assembly 23 is ensured.
As shown in fig. 8 to 10: a stopper 2441 for limiting the position of the slider 241 is provided on one end of the lead screw 244 and the guide rod 245 near the two plates 12.
When the driving lever 24 pulls the swing lever 231 to rotate toward the bottom of the tail plate 2, if the driving lever 24 pulls too much, the rotation direction of the swing lever 231 is deviated when the swing lever 231 is driven next time, in order to ensure the stability of the operation of the swing lever 231, the sliding distance of the sliding block 241 is limited by the arrangement of the limiting block 2441, and when the driving lever 24 pulls the swing lever 231 toward the bottom of the tail plate 2 to the limit position, the swing lever 231 is slightly lifted toward the side of the driving plate 32, thereby improving the stability of the operation of the first limiting assembly 23.
As shown in fig. 8 and 9: the sensing assembly 26 is positioned on the connection plate 242, and the sensing assembly 26 is a pressure sensor 27.
In the process that the connecting rod assembly 33 changes from the V-shaped state to the linear state, the first connecting rod 331 of the connecting rod assembly moves towards the connecting plate 242 between the two sliding blocks 241 gradually, the pressure sensor 27 monitors the pressure change between the first connecting rod 331 and the connecting plate 242 to know whether the connecting rod assembly 33 reaches a designated position, when the pressure sensor 27 reaches a set threshold value, the pressure sensor 27 sends a signal to a controller at the rear end, the controller sends a signal to the first limiting assembly 23, and the position of the driving plate 32 is fixed through the first limiting assembly 23; when the pressure sensor 27 does not reach the set threshold value, the controller does not generate a signal to the first limiting component 23, the controller sends a signal to the adjusting mechanism 21, the position of the tail plate 2 is adjusted through the adjusting mechanism 21 until the value monitored by the pressure sensor 27 reaches the specified pressure range, and the die locking effect and the die locking force of the link mechanism 3 on the die between the two plates 12 and the head plate 11 are sequentially ensured.
As shown in fig. 2, 6 and 11: the detecting assembly 26 further includes a second limiting assembly 25 that is mirror symmetrical with the first limiting assembly 23, and the fixing plate 321 is further provided with a second limiting groove 3214 that is mirror symmetrical with the first limiting groove 3211.
When the first limiting component 23 fixes the driving plate 32, the force application point of the driving plate 32 is concentrated below the driving plate 32, so that the driving plate 32 possibly has the problem of offset after being contacted with the first limiting component 23 when being fixed, the driving plate 32 is more balanced in stress by synchronously driving the first limiting component 23 and the second limiting component 25 through the second limiting component 25 which are in mirror symmetry with the first limiting component 23, the possibility of offset after being singly contacted with the first limiting component 23 is reduced, the stability is higher when the driving plate 32 is limited, and the injection molding effect of the injection molding machine is improved.
A motor direct-drive injection molding machine comprises the motor direct-drive injection molding machine mold locking structure.
The foregoing examples merely illustrate one or more embodiments of the invention, which are described in greater detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (9)
1. The utility model provides a motor direct-drive injection molding machine mode locking structure, including slide rail (1) and tail board (2) that set up on slide rail (1), two boards (12) and head board (11), head board (11) fixed connection is on one of them end of slide rail (1), tail board (2) slidable set up on the other end of slide rail (1), be provided with on tail board (2) and drive adjustment mechanism (21) that tail board (2) moved along slide rail (1), two boards (12) are located between tail board (2) and head board (11), and be provided with link mechanism (3) that are used for the mode locking between two boards (12) and tail board (2), its characterized in that, link mechanism (3) include linear drive (31), drive board (32) and two link assemblies (33); the linear driver (31) is positioned at one end of the tail plate (2) far away from the head plate (11); the driving plate (32) is slidably arranged on the tail plate (2), the sliding direction of the driving plate (32) is parallel to the sliding direction of the tail plate (2), and the driving plate (32) is in transmission connection with the linear driver (31); the two connecting rod assemblies (33) are in mirror symmetry states and are respectively positioned above and below the driving plate (32), and the two connecting rod assemblies (33) are in transmission connection with the driving plate (32); the top and the bottom of the side, which is close to each other, of the tail plate (2) and the two plates (12) are respectively provided with a connector (22) hinged with two connecting rod assemblies (33); the connecting rod mechanism (3) further comprises a first limiting component (23) for fixing the moved driving plate (32) and a detection component (26) for detecting whether the displacement position of the connecting rod component (33) after the mold locking is in place or not; the first limiting component (23) is rotatably arranged on the connector (22) at the bottom of the tail plate (2), and the detection component (26) is positioned beside the first limiting component (23); the first limiting assembly (23) further comprises a deviation rectifying mechanism.
2. The motor direct-drive injection molding machine mold locking structure according to claim 1, wherein the first limiting assembly (23) comprises a swinging rod (231), the swinging rod (231) is rotatably sleeved on a connector (22) at the bottom of the tail plate (2), one end, far away from the connector (22), of the swinging rod (231) is fixedly connected with a limiting rod (232) in a horizontal state, one side, close to the two plates (12), of the driving plate (32) is provided with a fixed plate (321), the fixed plate (321) is provided with an arc-shaped first limiting groove (3211), the bottom of the first limiting groove (3211) is provided with an opening (3212), and the first limiting groove (3211) and the limiting rod (232) are matched with each other and are in sliding fit; the deviation rectifying mechanism comprises a flaring (3213) which is arranged on an opening (3212) of the first limiting groove (3211) and is expanded towards two sides, and the flaring (3213) is in an arc-shaped structure.
3. The motor direct-drive injection molding machine mold locking structure according to claim 2, wherein the fixed plates (321) and the swinging rods (231) are two, the two fixed plates (321) are respectively located at two sides of the driving plate (32), the two swinging rods (231) are respectively located at two sides of the connector (22) at the bottom of the tail plate (2), the driving rods (24) are hinged at the middle parts of the two swinging rods (231), the sliding blocks (241) are arranged at one ends, far away from the swinging rods (231), of the driving rods (24), connecting plates (242) are arranged between the two sliding blocks (241), and the sliding directions of the two sliding blocks (241) are parallel to the sliding directions of the tail plate (2).
4. The motor direct-drive injection molding machine mold locking structure according to claim 3, wherein a first rotary driving motor (243), a screw rod (244) and a guide rod (245) are further arranged at the bottom of the tail plate (2), the screw rod (244) and the guide rod (245) are respectively arranged at two sides of the bottom of the tail plate (2) in a horizontal state, the axes of the screw rod (244) and the guide rod (245) extend along the direction of the sliding rail (1), the screw rod (244) is rotatably arranged on the tail plate (2), two sliding blocks (241) are respectively sleeved on the screw rod (244) and the guide rod (245), the screw rod (244) is in threaded fit with one sliding block (241), the guide rod (245) is in sliding fit with the other sliding block (241), the first rotary driving motor (243) is positioned on the tail plate (2), and the screw rod (244) is in transmission connection with the first rotary driving motor (243).
5. The motor direct-drive injection molding machine mold locking structure according to claim 4, wherein the screw rod (244) and the guide rod (245) are hollow structures, two support rods (121) which are respectively arranged coaxially with the axes of the screw rod (244) and the guide rod (245) are arranged on the two plates (12), the two support rods (121) are respectively sleeved in the screw rod (244) and the guide rod (245) in a sliding way, and the support rods (121) connected with the screw rod (244) are rotatably arranged on the two plates (12) and are of a hexagonal prism structure.
6. The mold locking structure of a motor direct-drive injection molding machine according to claim 5, wherein a limiting block (2441) for limiting the position of the sliding block (241) is arranged at one end, close to the two plates (12), of the screw rod (244) and the guide rod (245).
7. A motor direct-drive injection molding machine mold locking structure according to claim 3, wherein the detection assembly (26) is located on the connecting plate (242), and the detection assembly (26) is a pressure sensor (27).
8. The mold locking structure of a motor direct-drive injection molding machine according to any one of claims 2 to 7, wherein the detecting assembly (26) further comprises a second limiting assembly (25) with mirror symmetry of the first limiting assembly (23), and the fixing plate (321) is further provided with a second limiting groove (3214) with mirror symmetry of the first limiting groove (3211).
9. A motor direct-drive injection molding machine, comprising a motor direct-drive injection molding machine mold locking structure according to any one of claims 1-8.
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| CN202311101599.3A CN116811165B (en) | 2023-08-30 | 2023-08-30 | Motor direct-drive type injection molding machine mold locking structure and injection molding machine with same |
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| CN202311101599.3A CN116811165B (en) | 2023-08-30 | 2023-08-30 | Motor direct-drive type injection molding machine mold locking structure and injection molding machine with same |
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Cited By (1)
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| CN117656379A (en) * | 2024-01-15 | 2024-03-08 | 博创智能装备股份有限公司 | High-precision two-plate electric injection molding machine adopting multidirectional vibration-limiting mode locking structure |
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| CN116811165B (en) | 2023-11-03 |
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