CN115946315A - Large-tonnage double-injection high-automation low-operation-surface equipment - Google Patents
Large-tonnage double-injection high-automation low-operation-surface equipment Download PDFInfo
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- CN115946315A CN115946315A CN202211622373.3A CN202211622373A CN115946315A CN 115946315 A CN115946315 A CN 115946315A CN 202211622373 A CN202211622373 A CN 202211622373A CN 115946315 A CN115946315 A CN 115946315A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract
The invention provides a large-tonnage double-injection high-automation low-operation-surface device which comprises a rack, an upper template and a lower template, wherein the rack is used as a supporting and mounting carrier for mounting other components; the upper template is vertically matched on the rack in a sliding manner, an upper driving cylinder for driving the upper template to move up and down is arranged on the rack, and an injection unit is arranged on the upper template; the lower template is vertically matched on the rack in a sliding mode and located under the upper template, an auxiliary lifting cylinder used for driving the lower template to move up and down is arranged on the rack, and a mold locking oil cylinder used for locking a mold is fixed under the lower template. The large-tonnage double-injection high-automation low-operation-surface equipment has a compact structure, good laminating degree and high mold locking force when a template is closed, can avoid the generation of flash of a large-size injection molding part, and greatly improves the product quality and the yield.
Description
Technical Field
The invention relates to injection molding production equipment, in particular to large-tonnage double-injection high-automation low-operation-surface equipment.
Background
When a large-scale injection molding part is produced, the injection molding machine has a large width or diameter, so that a forming mold of the injection molding machine is large or long in size when the large-scale injection molding part is produced, in the traditional process, due to the influence of the structure of the injection molding machine, the mold is easy to deflect in a micro-scale manner due to unbalanced thrust, so that flash is generated, the later-stage processing is needed, time and labor are wasted, the production efficiency is low, the processing cost is improved, and meanwhile, a defective product is easy to generate; meanwhile, the traditional injection molding machine has low injection molding discharge, and cannot meet the production requirements of large injection molding parts.
Disclosure of Invention
【1】 Technical problem to be solved
The invention aims to solve the technical problem of providing large-tonnage double-injection high-automation low-operation-surface equipment which has large injection quantity, high mold locking pressure, uniform mold locking force and high product quality of a finished piece.
【2】 Means for solving the problems
The invention provides a large-tonnage double-injection high-automation low-operation-surface device, which comprises:
a frame 1 as a support and mounting carrier for mounting other components;
the upper die plate 7 is vertically matched on the rack 1 in a sliding manner, an upper driving cylinder 9 for driving the upper die plate to move up and down is arranged on the rack 1, and an injection unit 8 is arranged on the upper die plate;
the lower template 4 is vertically matched on the rack 1 in a sliding mode and located under the upper template, an auxiliary lifting cylinder 42 used for driving the lower template 4 to move up and down is arranged on the rack 1, and a mold locking oil cylinder 41 used for locking a mold is fixed under the lower template 4.
Further, the mold locking oil cylinder 41 is fixed at the bottom of the lower template, an output shaft of the mold locking oil cylinder is vertically arranged downwards, and the lower end of the rack 1 is provided with a supporting base 3 which is used for contacting with the output shaft of the mold locking oil cylinder 41 to realize mold locking.
Further, the lower end of the mold locking oil cylinder 41 forms a material ejecting area, the supporting base 3 is horizontally matched on the rack 1 in a sliding manner, and when the lower template 4 moves upwards and is in a mold closing state, the supporting base 3 horizontally slides into the material ejecting area and is used for supporting the mold locking oil cylinder 41 to realize mold locking; when the lower template is separated from the die, the supporting base 3 horizontally slides to the outside of the material ejecting area and allows the lower template 4 to fall.
Further, the lower extreme of frame 1 is equipped with can realize horizontal slip's slide 2 and is used for the drive the slide cylinder that slide 2 levels slided, support base 3 and install 2 tops of slide, and work as when slide 2 is located interior utmost point limit, support base 3 is located under the lower bolster.
Furthermore, the supporting base 3 is formed by stacking supporting bottom plates and is adjustable in height.
Further, the number of the injection units is at least two.
Further, a lower die base is fixed at the lower end of the lower die plate 4, an oil cavity with an open lower end is formed in the lower die base, the lower end of the lower die base is connected with a cylinder barrel which is coaxial with the oil cavity in a sealing mode, a plunger piston is vertically matched in the cylinder barrel in a sliding mode and forms the mold locking oil cylinder 41, and an oil inlet and an oil outlet are formed in the side wall of the oil cavity.
Furthermore, a sensing device is arranged on the rack, and when the lower template moves upwards to a set distance, the sensing device is triggered, and the sliding seat cylinder is triggered to push the supporting seat to the material ejecting area.
Furthermore, the number of the upper driving cylinders 9 is at least two, and the upper driving cylinders are circumferentially and uniformly distributed around the axis of the upper template.
Furthermore, a synchronizing assembly is arranged on the upper template and/or the lower template, the synchronizing assembly comprises four balance seats 74 fixed on the side wall of the upper template or the lower template, vertical guide holes are formed in the balance seats, a guide rod 72 which corresponds to the vertical guide holes and is inserted into the guide holes to realize sliding fit is arranged on the rack, gear teeth are arranged on the side wall of the guide rod to form a first rack and a second rack with the same tooth pitch, a first balance rod 71 is rotatably arranged between the two balance seats on the same side, and a first balance gear meshed with the first rack is fixed on the first balance rod; a second balance rod 73 is rotatably installed between the two balance seats at the same end, and a second balance gear meshed with the second rack is fixed on the second balance rod.
【3】 Advantageous effects
According to the large-tonnage double-injection high-automation low-operation-surface equipment, the auxiliary lifting cylinder is arranged, so that the lifting speed of the lower template can be increased, the mold closing speed can be increased, and the working efficiency can be improved; the mold locking oil cylinder is arranged, so that the mold locking force is large, the mold locking is stable, the laminating degree between the molds is improved, the problems of flash and the like are avoided, and the injection molding quality is improved; the built-in oil cavity structure is arranged, so that the jacking reliability and stability are improved, and the die assembly reliability is ensured; the large-diameter plunger is structurally arranged, so that the pressure is high, the contact area is increased, the micro-inclination of a template caused by the generation of a force arm is avoided, the balance and the reliability of die assembly are greatly improved, and the product quality is improved; the multi-injection unit structure is arranged, so that the injection amount in unit time is increased, the injection efficiency is high, the injection gap can be avoided, and the production efficiency and the product quality are improved; the upper die is driven by multi-cylinder, the driving force is large, the balance is good, the die assembly force and the laminating degree are improved, the generation of flash is avoided, and the injection molding quality is improved; the synchronous component is arranged, so that the overall balance degree of the template during movement is realized, the operation precision is improved, the inclination is avoided, the fitting degree of the template during die assembly is ensured, and the injection molding quality is ensured; the large-tonnage double-injection high-automation low-operation-surface equipment disclosed by the invention has a compact structure, good laminating degree and high mold locking force during mold closing of the template, can avoid the generation of flash of large-size injection molding parts, and greatly improves the product quality and the yield.
Drawings
FIG. 1 is a schematic structural view of a large tonnage dual injection high automation low operating face apparatus of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a front view of the large tonnage dual injection high automation low profile apparatus of the present invention;
FIG. 4 is a left side view of the large tonnage dual injection high automation low operating face apparatus of the present invention;
FIG. 5 is a schematic view of the injection unit of the large tonnage dual injection high automation low profile apparatus of the present invention.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the accompanying drawings.
Referring to fig. 1-5, the present invention provides a large tonnage dual injection high automation low operation surface equipment for injecting large size plastic or rubber products, which comprises a frame 1, an upper template 7 and a lower template 4.
The whole frame 1 is used as a support and mounting carrier for mounting other components, the frame 1 comprises a lower base, the lower base is fixed on the ground through bolts, four or more upright columns are arranged on the lower base, an upper base is fixed at the tops of the upright columns, and a mounting area (working area) is formed between the upper base and the lower base.
The upper template 7 is vertically matched on the frame 1 in a sliding manner and is positioned in the installation area, an upper driving cylinder 9 is arranged on the frame 1, an output shaft of the upper driving cylinder 9 is connected with the upper template and is used for driving the upper template to move up and down, in the embodiment, the upper driving cylinder 9 is vertically fixed at the top of the upper base, and the output shaft of the upper driving cylinder penetrates through the upper base downwards and is rigidly connected with the upper template to realize the driving of the upper template; the upper driving cylinders are high-thrust oil cylinders, the diameter of sliding plugs of the upper driving cylinders is large, high-pressure output can be realized, meanwhile, at least two upper driving cylinders 9 are arranged in the embodiment and are uniformly distributed in the circumferential direction around the axis of the upper template, and preferably, four upper driving cylinders are arranged in a matrix shape; an injection unit 8 is provided on the upper die plate for injecting the molten material into the molding cavity.
The injection unit comprises an injection mechanism and a nozzle, wherein the nozzle is arranged at the bottom of the upper template, and the injection mechanism is fixed at the top of the upper base and is used for injecting raw materials into the molding cavity; specifically, the injection mechanism comprises a charging barrel and a hydraulic motor, wherein a main sleeve is arranged in an upper template, and the main sleeve is vertically arranged and is arranged with the charging barrel; the charging barrel is vertically fixed on the upper base, is coaxial with the main sleeve, is sleeved with the discharging end in the main sleeve and can axially slide, a screw rod for conveying materials is rotatably installed in the charging barrel, the hydraulic motor is fixed at the end part of the charging barrel, the output shaft of the hydraulic motor is rigidly connected with the screw rod and used for driving the screw rod to rotate, and an electric heater is arranged on the side wall of the charging barrel and used for heating and melting materials in the charging barrel to realize injection.
In the embodiment, the number of the injection units is two, so that the injection amount in unit time can be increased, the injection efficiency can be improved, and the product quality can be improved.
The lower template 4 is vertically matched on the frame 1 in a sliding manner and is positioned right below the upper template, the frame 1 is provided with auxiliary lifting cylinders 42, the auxiliary lifting cylinders 42 are used for driving the lower template 4 to move up and down, specifically, the number of the auxiliary lifting cylinders 42 is four or more, and the auxiliary lifting cylinders are symmetrically arranged at the edge (side wall) of the lower template, meanwhile, a mold locking oil cylinder 41 is fixed right below the lower template 4, and the mold locking oil cylinder 41 generates large thrust to the lower template to realize mold locking; the mold locking oil cylinder 41 is fixed at the center of the bottom of the lower template, an output shaft of the mold locking oil cylinder is vertically arranged downwards, meanwhile, a support base 3 is arranged at the lower end of the rack 1, and the support base 3 is used for being in contact with the output shaft of the mold locking oil cylinder 41 so as to support the mold locking oil cylinder and complete mold locking; an oil inlet and an oil outlet are arranged on the side wall of the oil cavity. Specifically, a lower die holder is fixed at the lower end of the lower die plate 4, an oil cavity with an open lower end is formed in the lower die holder, meanwhile, a cylinder barrel is hermetically connected at the lower end of the lower die holder, the cylinder barrel is coaxial with the oil cavity, and a plunger is vertically and slidably arranged in the cylinder barrel, so that a mold locking oil cylinder 41 is formed; the lower end of the cylinder barrel extends radially inwards to form a sliding cavity, the sliding cavity is used for being attached to the outer wall of the plunger and achieving sliding fit of the plunger, the sliding cavity has a certain axial length, the contact area of the sliding cavity and the plunger is increased, and the sliding fit stability is improved; in order to improve the driving force, in the embodiment, the ratio of the diameter of the plunger to the width of the lower template is more than or equal to 1/2 and less than or equal to 4/5, so that the contact area is increased, the driving force is improved, and the uniform distribution of pressure can be realized;
in the embodiment, the support base 3 is horizontally and slidably arranged on the frame 1, and when the lower template 4 moves upwards and is in die assembly or is about to be die assembled, the support base 3 horizontally slides into the material ejection area and is used for supporting the die locking oil cylinder 41 and realizing die locking; when the lower template is separated from the mold or is about to be separated from the mold, the supporting base 3 horizontally slides out of the material ejecting area to accommodate the falling of the lower template 4 and improve the falling space for the lower template; specifically, a sliding seat 2 and a sliding seat cylinder are arranged at the lower end of a rack 1, the sliding seat 2 can horizontally slide, the sliding seat cylinder is used for driving the sliding seat 2 to horizontally slide, a supporting base 3 is arranged at the top of the sliding seat 2, when the sliding seat 2 is positioned at an inner limit position, the supporting base 3 is positioned right below a lower template, and at the moment, a supporting point can be provided for a mold locking oil cylinder; in order to facilitate the height adjustment, in this embodiment, the supporting base 3 is formed by stacking a plurality of supporting base plates, is preferably circular, is provided with a positioning structure between two adjacent supporting base plates for radial positioning, and the positioning structure is a positioning groove and a positioning boss, and can stack supporting base plates of different quantities or supporting base plates of different thicknesses, thereby realizing the height adjustment and meeting different use requirements.
In order to realize automatic control, a sensing device is arranged on the machine frame, when the lower template moves upwards to a set distance, the sensing device is triggered, the sensing device sends out a sensing signal and transmits the sensing signal to the control device, the control device sends out a control signal and triggers the sliding seat cylinder to act so as to push the supporting seat to the inside or outside of the material ejecting area, and the sensing device can be a contact switch or infrared or laser sensing.
In the application, the middle die 5 is further arranged on the rack, is horizontally matched on the rack in a sliding manner and is positioned between the upper die plate and the lower die plate, and when the middle die slides into the mounting area as required, the upper die plate moves downwards, the lower die plate moves upwards and complete die assembly can be realized; when not needed, the sliding plate can horizontally slide out of the installation area.
In order to facilitate taking materials, a material taking manipulator is arranged on the other side of the rack and can horizontally and vertically slide to take out products in the installation area.
In order to improve the parallelism of the upper template and the lower template during movement and avoid quality problems such as flash caused by inclination, in the embodiment, the upper template and the lower template are both provided with a synchronous assembly, the synchronous assembly comprises four balance seats 74 fixed on the side wall of the upper template or the lower template, the balance seats are provided with vertical guide holes, meanwhile, a plurality of guide rods 72 are arranged on the rack, the guide rods 72 correspond to the vertical guide holes one by one and are sleeved with the guide holes to realize sliding fit, the two side walls of the guide rods are provided with gear teeth to form a first rack and a second rack, the gear pitches of the first rack and the second rack are the same, a first balance rod 71 is rotatably arranged between the two balance seats positioned on the same side, the first balance rod is fixed with a first balance Heng Chilun, and the first Heng Chilun is meshed with the first rack; a second balance rod 73 is rotatably arranged between the two balance seats at the same end, the second balance rod 73 is perpendicular to the first balance rod 71, a second balance gear is fixed on the second balance rod, and the second balance rod Heng Chilun is meshed with a second rack, so that the upper template or the lower template can be used for realizing synchronous ascending or descending, and the production inclination is avoided.
According to the large-tonnage double-injection high-automation low-operation-surface equipment, the auxiliary lifting cylinder is arranged, so that the lifting speed of the lower template can be increased, the mold closing speed can be increased, and the working efficiency can be improved; the mold locking oil cylinder is arranged, so that the mold locking force is large, the mold locking is stable, the fitting degree between the molds is improved, the problems of flash and the like are avoided, and the injection molding quality is improved; the built-in oil cavity structure is arranged, so that the jacking reliability and stability are improved, and the die assembly reliability is ensured; the large-diameter plunger is structurally arranged, so that the pressure is high, the contact area is increased, the micro-inclination of a template caused by the generation of a force arm is avoided, the balance and the reliability of die assembly are greatly improved, and the product quality is improved; the multi-injection unit structure improves the injection amount in unit time, has high injection efficiency, can avoid the generation of injection gaps, and improves the production efficiency and the product quality; the upper die is driven by multi-cylinder, the driving force is large, the balance is good, the die assembly force and the laminating degree are improved, the generation of flash is avoided, and the injection molding quality is improved; the synchronous component is arranged, so that the overall balance degree of the template during movement is realized, the operation precision is improved, the inclination is avoided, the fitting degree of the template during die assembly is ensured, and the injection molding quality is ensured; the large-tonnage double-injection high-automation low-operation-surface equipment has a compact structure, good laminating degree and high mold locking force when a template is closed, can avoid the generation of flash of a large-size injection molding part, and greatly improves the product quality and the yield.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A large-tonnage dual-injection high-automation low-operation-surface device is characterized by comprising:
a frame 1 as a support and mounting carrier for mounting other components;
the upper template 7 is vertically matched on the rack 1 in a sliding manner, an upper driving cylinder 9 for driving the upper template to move up and down is arranged on the rack 1, and an injection unit 8 is arranged on the upper template 7;
the lower template 4 is vertically matched on the rack 1 in a sliding mode and located under the upper template, an auxiliary lifting cylinder 42 used for driving the lower template 4 to move up and down is arranged on the rack 1, and a mold locking oil cylinder 41 used for locking a mold is fixed under the lower template 4.
2. The large tonnage dual injection high automation low profile apparatus of claim 1, wherein: the mould locking oil cylinder 41 is fixed at the bottom of the lower template, an output shaft of the mould locking oil cylinder is vertically arranged downwards, and the lower end of the rack 1 is provided with a supporting base 3 which is used for contacting with the output shaft of the mould locking oil cylinder 41 to realize mould locking.
3. The large tonnage dual injection high automation low profile apparatus of claim 1, wherein: the lower end of the mold locking oil cylinder 41 forms a material ejecting area, the supporting base 3 is horizontally and slidably matched on the rack 1, and when the lower template 4 moves upwards and is in a mold closing state, the supporting base 3 horizontally slides into the material ejecting area and is used for supporting the mold locking oil cylinder 41 to realize mold locking; when the lower template is used for parting, the supporting base 3 horizontally slides to the outside of the material ejecting area and allows the lower template 4 to fall.
4. The large tonnage dual injection high automation low profile apparatus of claim 1, wherein: the lower extreme of frame 1 is equipped with can realize horizontal slip's slide 2 and is used for the drive slide cylinder that 2 levels of slide slided, support base 3 and install 2 tops of slide, and work as when slide 2 is located utmost point limit, support base 3 is located under the lower bolster.
5. The large tonnage dual injection high automation low profile apparatus of claim 1, wherein: the supporting base 3 is formed by superposing supporting bottom plates and is adjustable in height.
6. The large tonnage dual injection high automation low profile apparatus of claim 1, wherein: the number of the injection units is at least two.
7. The large tonnage dual injection high automation low profile apparatus of claim 1, wherein: the lower die is characterized in that a lower die base is fixed at the lower end of the lower die plate 4, an oil cavity with an open lower end is formed in the lower die base, the lower end of the lower die base is connected with a cylinder barrel which is coaxial with the oil cavity in a sealing mode, a plunger piston is vertically matched in the cylinder barrel in a sliding mode and forms the mold locking oil cylinder 41, and an oil inlet and an oil outlet are formed in the side wall of the oil cavity.
8. The large tonnage dual injection high automation low profile apparatus of claim 1, wherein: the frame is provided with a sensing device, when the lower template moves upwards to a set distance, the sensing device is triggered, and the sliding seat cylinder is triggered to push the supporting seat to the material ejecting area.
9. The large tonnage dual injection high automation low profile apparatus of claim 1, wherein: the upper driving cylinders 9 are at least two and are circumferentially and uniformly distributed around the axis of the upper template.
10. The large tonnage dual injection high automation low profile apparatus of claim 1, wherein: the upper template and/or the lower template is/are provided with a synchronous assembly, the synchronous assembly comprises four balance seats 74 fixed on the side wall of the upper template or the lower template, vertical guide holes are formed in the balance seats, a guide rod 72 which corresponds to the vertical guide holes, is inserted into the guide holes and is matched with the vertical guide holes in a sliding mode is arranged on the rack, the side wall of the guide rod is provided with gear teeth, a first rack and a second rack with the same tooth pitch are formed in the side wall of the guide rod, a first balance rod 71 is rotatably installed between the two balance seats positioned on the same side, and a first balance gear meshed with the first rack is fixed on the first balance rod; a second balance rod 73 is rotatably installed between the two balance seats at the same end, and a second balance gear meshed with the second rack is fixed on the second balance rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211622373.3A CN115946315A (en) | 2022-12-16 | 2022-12-16 | Large-tonnage double-injection high-automation low-operation-surface equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211622373.3A CN115946315A (en) | 2022-12-16 | 2022-12-16 | Large-tonnage double-injection high-automation low-operation-surface equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115946315A true CN115946315A (en) | 2023-04-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211622373.3A Pending CN115946315A (en) | 2022-12-16 | 2022-12-16 | Large-tonnage double-injection high-automation low-operation-surface equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115946315A (en) |
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2022
- 2022-12-16 CN CN202211622373.3A patent/CN115946315A/en active Pending
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