CN111730831A - Tightness-adjustable injection mold closing and opening device - Google Patents
Tightness-adjustable injection mold closing and opening device Download PDFInfo
- Publication number
- CN111730831A CN111730831A CN202010541270.9A CN202010541270A CN111730831A CN 111730831 A CN111730831 A CN 111730831A CN 202010541270 A CN202010541270 A CN 202010541270A CN 111730831 A CN111730831 A CN 111730831A
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- fixedly connected
- gearbox
- motor
- tightness
- injection mold
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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
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses an injection mold closing and opening device with adjustable tightness, which comprises an installation plate, wherein two guide rods are fixedly connected onto the installation plate, a supporting plate is fixedly connected to the upper ends of the two guide rods together, a cross beam is slidably connected between the supporting plate and the installation plate, the two guide rods penetrate through the cross beam and are movably connected with the cross beam, four adjusting screw rods are fixedly connected onto the cross beam, adjusting threaded cylinders in threaded connection with the adjusting screw rods are sleeved outside the four adjusting screw rods, and a transmission mechanism is arranged between the four adjusting threaded cylinders. The invention has reasonable structure, can better stabilize the opening and closing die of the die and has higher accuracy by matching the adjusting screw rod, the adjusting threaded cylinder, the gearbox and the motor, can absorb shock of the gearbox and the motor, can protect the gearbox and the motor, can ensure that the vibration of the gearbox and the motor can not influence the opening and closing die of the injection die, and can also reduce the abrasion of the guide rod.
Description
Technical Field
The invention relates to the technical field of injection molds, in particular to a tightness-adjustable injection mold closing and opening device.
Background
Injection molding is a method for producing and molding industrial products; the products are generally produced by rubber injection molding and plastic injection molding. The injection molding can also be realized by an injection molding die pressing method and die casting; an injection molding machine (an injection machine or an injection molding machine for short) is a main molding device for making thermoplastic plastics or thermosetting materials into plastic products with various shapes by using a plastic molding die, and the injection molding is realized by the injection molding machine and the die.
The time required to complete an injection molding process is referred to as the molding cycle, also referred to as the molding cycle. It actually comprises the following parts:
and (3) forming period: the molding cycle directly affects the productivity and equipment utilization. Therefore, in the production process, the relevant time of each forming cycle is shortened as much as possible on the premise of ensuring the quality. Throughout the molding cycle, with injection time and cooling time being of the utmost importance, they have a decisive influence on the quality of the article. The mold filling time in the injection time is directly inversely proportional to the mold filling rate, and the mold filling time in production is generally about 3 to 5 seconds. The dwell time in the injection time is the pressure time of the plastic in the cavity, and the proportion of the dwell time in the whole injection time is large, generally about 20-120 seconds (the time of an extra-thick product can be up to 5-10 minutes). The amount of dwell time before the melt freezes at the gate has an effect on the dimensional accuracy of the product and, if so, no effect. Dwell time is also the most favorable value and is known to depend on the material temperature, the mold temperature and the size of the sprue and gate. If the dimensions of the main runner and the gate and the process conditions are normal, the pressure value with the smallest fluctuation range of the shrinkage rate of the product is usually taken as the standard. The cooling time is mainly determined by the thickness of the product, the thermal and crystallization properties of the plastic, and the temperature of the mold. The end point of the cooling time is based on the principle that the product is not changed when being demoulded, the cooling time is generally about 30-120 seconds, the cooling time is not longer and is unnecessary, the production efficiency is reduced, the complex product is difficult to demould, and even the demoulding stress is generated when the product is forcedly demoulded. The other times in the forming cycle are related to whether and to what extent the production process is continuous and automated.
The traditional injection molding machine adopts an oil cylinder or an air cylinder as power for opening and closing the mold, and the power has the advantages that the power is sufficient, but the controllability and the stability of the pressure are not enough, and the power driven by a motor screw rod is adopted, although the controllability is good, the power is not sufficient, and the stability is not good, so that the tightness-adjustable injection mold closing and opening device is designed to solve the problems.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides the tightness-adjustable injection mold closing and opening device, which can better stabilize and improve the accuracy of the opening and closing of a mold through the matching of an adjusting screw rod, an adjusting threaded cylinder, a gearbox and a motor, can damp the gearbox and the motor, protect the gearbox and the motor, prevent the vibration of the gearbox and the motor from influencing the opening and closing of the injection mold, and reduce the abrasion of a guide rod.
In order to achieve the purpose, the invention adopts the following technical scheme:
an injection mold closing and opening device with adjustable tightness comprises a mounting plate, wherein two guide rods are fixedly connected to the mounting plate, two support plates are fixedly connected to the upper ends of the guide rods jointly, a cross beam is connected between the support plates and the mounting plate in a sliding manner, the two guide rods penetrate through the cross beam and are movably connected with the cross beam, four adjusting screw rods are fixedly connected to the cross beam, adjusting thread cylinders in threaded connection with the adjusting screw rods are sleeved outside the four adjusting screw rods, a transmission mechanism is arranged between the four adjusting thread cylinders, the upper ends of the four adjusting thread cylinders are rotatably connected with the bottom of the support plate, one of the four adjusting thread cylinders is fixedly connected with a coaxial rotating rod, the rotating rod penetrates through the support plate and is rotatably connected with the support plate, a gearbox and a motor are arranged above the support plate, and a damping mechanism is arranged between the motor and the gearbox, the motor is connected with the gearbox, and a rotating mechanism is arranged between the gearbox and the rotating rod.
Preferably, a sliding sleeve fixedly connected with the beam is installed on the beam in a penetrating mode, and the guide rod penetrates through the sliding sleeve and is movably connected with the sliding sleeve.
Preferably, the inner wall of the sliding sleeve is provided with a ball, and the guide rod is provided with a ball groove matched with the ball.
Preferably, the transmission mechanism comprises four transmission gears sleeved outside the four adjusting thread cylinders, the four transmission gears are fixedly connected with the corresponding adjusting thread cylinders, and the four transmission gears are connected through a gear belt.
Preferably, the outer wall of the adjusting threaded cylinder is in interference fit with a bearing, and an outer ring of the bearing is fixedly connected with the support plate.
Preferably, the output end of the motor is fixedly connected with a transmission rod, and the transmission rod is fixedly connected with the shaft end of the gearbox.
Preferably, damper includes with motor and gearbox fixed connection right damping plate, a plurality of damping spring of fixedly connected with and a plurality of telescopic link between damping plate and the backup pad, it is a plurality of damping spring overlaps respectively on a plurality of telescopic links, it is connected with two cavity poles, two to rotate in the backup pad all be equipped with well cavity, two in the cavity pole equal sliding connection in the cavity has a sliding block, two equal fixedly connected with damping spring between the inner wall of sliding block and well cavity, two the sliding block is with the equal fixedly connected with connecting rod of the one end that the damping spring carried on the back mutually, two the connecting rod runs through relative cavity pole respectively and rather than sliding connection, two the connecting rod all rotates with the backup pad to be connected.
Preferably, the rotating rod is sleeved with a first bevel gear fixedly connected with the rotating rod, the other shaft end of the gearbox is fixedly connected with an installation rod, the installation rod is fixedly connected with a second bevel gear, and the first bevel gear and the second bevel gear are meshed with each other.
Compared with the prior art, the invention has the beneficial effects that:
1. the four adjusting screws work simultaneously to realize the movement of the cross beam, the control force, the power and the stability of the cross beam are better, and the matching of the adjusting screws, the adjusting threaded cylinders, the gear box and the motor can improve the stability and the accuracy of the opening and closing die of the die.
2. When the motor and the gearbox work, the damping plate can be damped through the damping spring, so that the damping of the gearbox and the motor is realized, and the vibration of the gearbox and the motor can not influence the opening and closing of the injection mold while the gearbox and the motor are protected.
3. Through the ball rolling in the ball groove, the friction between sliding sleeve and the guide bar can be greatly reduced, and the movement is smoother.
In conclusion, the invention has reasonable structure, can better stabilize the opening and closing die of the die and has higher accuracy by matching the adjusting screw rod, the adjusting threaded cylinder, the gearbox and the motor, can damp the gearbox and the motor, can protect the gearbox and the motor, can prevent the vibration of the gearbox and the motor from influencing the opening and closing die of the injection die, and can reduce the abrasion of the guide rod.
Drawings
FIG. 1 is a schematic structural view of a tightness-adjustable mold closing and opening device for an injection mold, according to the present invention;
FIG. 2 is a schematic structural view of a tightness-adjustable mold closing and opening device for an injection mold according to the present invention;
FIG. 3 is a schematic structural view of a tightness-adjustable mold closing and opening device for an injection mold according to the present invention;
fig. 4 is a schematic structural diagram of the tightness-adjustable injection mold closing and opening device provided by the invention.
In the figure: the damping mechanism comprises a mounting plate 1, a guide rod 2, a support plate 3, a cross beam 4, an adjusting threaded cylinder 5, an adjusting screw rod 6, a transmission gear 7, a gear belt 8, a rotating rod 9, a first bevel gear 10, a mounting rod 11, a gear box 12, a transmission rod 13, a motor 14, a sliding sleeve 15, balls 16, a hollow rod 17, a damping plate 18, a connecting rod 19, a hollow cavity 20, a sliding block 21, a damping spring 22, a telescopic rod 23, a damping spring 24, a ball groove 25, a bearing 26 and a second bevel gear 27.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1-4, the tightness-adjustable injection mold closing and opening device comprises a mounting plate 1, two guide rods 2 are fixedly connected to the mounting plate 1, a supporting plate 3 is fixedly connected to the upper ends of the two guide rods 2 together, a cross beam 4 is slidably connected between the supporting plate 3 and the mounting plate 1, the two guide rods 2 both penetrate through the cross beam 4 and are movably connected with the cross beam, a sliding sleeve 15 fixedly connected with the cross beam 4 is installed on the cross beam 4 in a penetrating manner, the guide rods 2 penetrate through the sliding sleeve 15 and are movably connected with the sliding sleeve 15, balls 16 are installed on the inner wall of the sliding sleeve 15, and ball grooves 25 matched with the balls 16 are formed in the; by the balls 16 rolling in the ball grooves 25, the friction between the sliding sleeve 15 and the guide bar 2 can be greatly reduced and the movement thereof can be made smoother.
Four adjusting screw 6 of fixedly connected with on the crossbeam 4, four adjusting screw 6's outside all overlaps and is equipped with rather than threaded connection's an adjusting thread section of thick bamboo 5, be equipped with drive mechanism between four adjusting thread section of thick bamboos 5, drive mechanism establishes four drive gear 7 in four adjusting thread section of thick bamboos 5 outsides including the cover, four drive gear 7 all with relative adjusting thread section of thick bamboos 5 between fixed connection, four drive gear 7 are connected through gear area 8, through the cooperation of drive gear 7 and gear area 8, can realize that four drive gear 7 rotate simultaneously, and then realize that four adjusting thread section of thick bamboos 5 rotate simultaneously.
Specifically, the four adjusting screws 6 work simultaneously to realize the movement of the cross beam 4, so that the control force, the power and the stability of the cross beam 4 are better, and the tightness of the mold to be opened and closed can be adjusted through the matching of the adjusting screws 6, the adjusting threaded cylinders 5, the gear box 12 and the motor 14.
The upper ends of the four adjusting threaded cylinders 5 are rotatably connected with the bottom of the supporting plate 3, bearings 26 are in interference fit with the outer walls of the adjusting threaded cylinders 5, and the outer rings of the bearings 26 are fixedly connected with the supporting plate 3; the upper end of one of the adjusting threaded cylinders 5 is fixedly connected with a rotating rod 9 coaxial with the adjusting threaded cylinder, the rotating rod 9 penetrates through the supporting plate 3 and is rotatably connected with the supporting plate 3, a gearbox 12 and a motor 14 are arranged above the supporting plate 3, and the gearbox 12 is an adjustable gearbox.
Be equipped with damper between motor 14 and the gearbox 12, damper includes the damping plate 18 right with motor 14 and the 12 fixed connection of gearbox, a plurality of damping spring 24 of fixedly connected with and a plurality of telescopic link 23 between damping plate 18 and the backup pad 3, a plurality of damping spring 24 overlap respectively on a plurality of telescopic link 23, it is connected with two cavity poles 17 to rotate on the backup pad 3, all be equipped with well cavity 20 in two cavity poles 17, equal sliding connection has sliding block 21 in two cavity cavities 20, equal fixedly connected with damping spring 22 between the inner wall of two sliding blocks 21 and well cavity 20, two sliding block 21 and the equal fixedly connected with connecting rod 19 of the one end that damping spring 22 carried on the back mutually, two connecting rod 19 run through relative cavity pole 17 respectively and rather than sliding connection, two connecting rod 19 all rotate with backup pad 3 and are connected.
Specifically, when the motor 14 and the gearbox 12 work, the damping plate 18 can be damped through the damping spring 24, so that the gearbox 12 and the motor 14 are damped, the gearbox 12 and the motor 14 are protected, and meanwhile, the vibration of the gearbox 12 and the motor 14 cannot influence the opening and closing of the injection mold; the damping spring 24 can be limited by the damping spring 22 so that the damping spring does not intensify the vibration of the damping plate 18, thereby achieving stable damping of the motor 14 and the transmission case 12.
The motor 14 is connected with the gearbox 12, the output end of the motor 14 is fixedly connected with the transmission rod 13, and the transmission rod 13 is fixedly connected with the shaft end of the gearbox 12; a rotating mechanism is arranged between the gearbox 12 and the rotating rod 9, a first bevel gear 10 fixedly connected with the rotating rod 9 is sleeved on the rotating rod 9, an installation rod 11 is fixedly connected with the other shaft end of the gearbox 12, a second bevel gear 27 is fixedly connected with the installation rod 11, and the first bevel gear 10 is meshed with the second bevel gear 27.
When the injection mold is used, the motor 14 is started, the motor 14 works to realize the rotation of the installation rod 11 and the second bevel gear 27 through the speed change of the gearbox 12, the rotation of the second bevel gear 27 can realize the rotation of the first bevel gear 10, further the rotation of the rotating rod 9 and the adjusting threaded cylinder 5, the simultaneous rotation of the four transmission gears 7 can be realized through the matching of the transmission gears 7 and the gear belts 8, further the simultaneous rotation of the four adjusting threaded cylinders 5 can be realized, further the simultaneous lifting of the four adjusting screws 6 in the adjusting threaded cylinders 5 can be realized, further the lifting of the cross beam 4 is realized, and the functions of mold opening and mold closing of the injection mold are realized; the four adjusting screws 6 work simultaneously to realize the movement of the cross beam 4, the control force, the power and the stability of the cross beam 4 are better, and the tightness of the opening and closing die of the die can be adjusted through the matching of the adjusting screws 6, the adjusting threaded cylinders 5, the gear box 12 and the motor 14.
When the motor 14 and the gearbox 12 work, the damping plate 18 can be damped through the damping spring 24, so that the damping of the gearbox 12 and the motor 14 is realized, the gearbox 12 and the motor 14 are protected, and meanwhile, the vibration of the gearbox 12 and the motor 14 cannot influence the opening and closing of the injection mold.
To sum up, through adjusting screw 6, adjusting thread section of thick bamboo 5, gearbox 12 and motor 14's cooperation, can be higher to the better accuracy of the stability of the mould that opens and shuts of mould, and can be to the shock attenuation of gearbox 12 and motor 14, when realizing the protection to gearbox 12 and motor 14, also can make gearbox 12 and motor 14's vibration can not bring the influence to injection mold's the mould that opens and shuts, also can reduce the wearing and tearing of guide bar 2, the realization is to the protection of guide bar 2.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The tightness-adjustable injection mold closing and opening device comprises a mounting plate (1) and is characterized in that two guide rods (2) are fixedly connected to the mounting plate (1), a support plate (3) is fixedly connected to the upper ends of the two guide rods (2) jointly, a cross beam (4) is connected between the support plate (3) and the mounting plate (1) in a sliding mode, the two guide rods (2) penetrate through the cross beam (4) and are movably connected with the cross beam, four adjusting screw rods (6) are fixedly connected to the cross beam (4), adjusting threaded cylinders (5) in threaded connection with the adjusting screw rods (6) are sleeved outside the four adjusting screw rods (6), a transmission mechanism is arranged between the four adjusting threaded cylinders (5), the upper ends of the four adjusting threaded cylinders (5) are rotatably connected with the bottom of the support plate (3), one of the four adjusting threaded cylinders (5) is fixedly connected with a rotating rod (9) coaxial with the adjusting threaded cylinders, dwang (9) run through backup pad (3) and rotate rather than being connected, the top of backup pad (3) is equipped with gearbox (12) and motor (14), be equipped with damper between motor (14) and gearbox (12), motor (14) are connected with gearbox (12), be equipped with slewing mechanism between gearbox (12) and dwang (9).
2. The tightness-adjustable injection mold closing and opening device according to claim 1, wherein a sliding sleeve (15) fixedly connected with the beam (4) penetrates through the beam, and the guide rod (2) penetrates through the sliding sleeve (15) and is movably connected with the sliding sleeve.
3. The tightness-adjustable injection mold closing and opening device according to claim 2, wherein the inner wall of the sliding sleeve (15) is provided with a ball (16), and the guide rod (2) is provided with a ball groove (25) matched with the ball (16).
4. The tightness-adjustable injection mold closing and opening device according to claim 1, wherein the transmission mechanism comprises four transmission gears (7) sleeved outside four adjusting threaded cylinders (5), the four transmission gears (7) are fixedly connected with the corresponding adjusting threaded cylinders (5), and the four transmission gears (7) are connected through gear belts (8).
5. The tightness-adjustable injection mold closing and opening device according to claim 1, wherein a bearing (26) is in interference fit with the outer wall of the adjusting threaded cylinder (5), and an outer ring of the bearing (26) is fixedly connected with the support plate (3).
6. The tightness-adjustable injection mold closing and opening device according to claim 1, wherein an output end of the motor (14) is fixedly connected with a transmission rod (13), and the transmission rod (13) is fixedly connected with a shaft end of the gearbox (12).
7. The tightness-adjustable injection mold closing and opening device according to claim 1, wherein the damping mechanism comprises a damping plate (18) fixedly connected with a motor (14) and a transmission case (12) in a pair, a plurality of damping springs (24) and a plurality of telescopic rods (23) are fixedly connected between the damping plate (18) and a support plate (3), the damping springs (24) are respectively sleeved on the telescopic rods (23), the support plate (3) is rotatably connected with two hollow rods (17), hollow cavities (20) are respectively arranged in the two hollow rods (17), sliding blocks (21) are respectively and slidably connected in the two hollow cavities (20), damping springs (22) are respectively and fixedly connected between the two sliding blocks (21) and the inner wall of the hollow cavity (20), and connecting rods (19) are respectively and fixedly connected at ends of the two sliding blocks (21) opposite to the damping springs (22), two connecting rod (19) run through relative cavity pole (17) respectively and rather than sliding connection, two connecting rod (19) all rotate with backup pad (3) and are connected.
8. The tightness-adjustable injection mold closing and opening device according to claim 1, wherein a first bevel gear (10) fixedly connected with the rotating rod (9) is sleeved on the rotating rod (9), an installation rod (11) is fixedly connected with the other shaft end of the gearbox (12), a second bevel gear (27) is fixedly connected with the installation rod (11), and the first bevel gear (10) and the second bevel gear (27) are meshed with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010541270.9A CN111730831A (en) | 2020-06-15 | 2020-06-15 | Tightness-adjustable injection mold closing and opening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010541270.9A CN111730831A (en) | 2020-06-15 | 2020-06-15 | Tightness-adjustable injection mold closing and opening device |
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| Publication Number | Publication Date |
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| CN111730831A true CN111730831A (en) | 2020-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010541270.9A Pending CN111730831A (en) | 2020-06-15 | 2020-06-15 | Tightness-adjustable injection mold closing and opening device |
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| CN (1) | CN111730831A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112297324A (en) * | 2020-10-11 | 2021-02-02 | 宏至翎包装制品(昆山)有限公司 | EPS plastic foam forming machine |
| CN112959627A (en) * | 2021-02-02 | 2021-06-15 | 杭州索凯实业有限公司 | Multi-insert synchronous linkage core-pulling mold for injection molding and high-precision control method thereof |
| CN118024485A (en) * | 2024-04-15 | 2024-05-14 | 福建荣阳鞋业有限公司 | Sole forming die and manufacturing process thereof |
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| CN118024485A (en) * | 2024-04-15 | 2024-05-14 | 福建荣阳鞋业有限公司 | Sole forming die and manufacturing process thereof |
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Application publication date: 20201002 |