CN114474638A - Method for detecting pressure of screw rod in injection molding machine - Google Patents
Method for detecting pressure of screw rod in injection molding machine Download PDFInfo
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- CN114474638A CN114474638A CN202111663949.6A CN202111663949A CN114474638A CN 114474638 A CN114474638 A CN 114474638A CN 202111663949 A CN202111663949 A CN 202111663949A CN 114474638 A CN114474638 A CN 114474638A
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 87
- 238000000034 method Methods 0.000 title claims description 19
- 238000001514 detection method Methods 0.000 claims abstract description 23
- 239000004033 plastic Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000012778 molding material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
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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
- B29C45/76—Measuring, controlling or regulating
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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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76003—Measured parameter
- B29C2945/76006—Pressure
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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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76177—Location of measurement
- B29C2945/7618—Injection unit
- B29C2945/76187—Injection unit screw
-
- 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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76498—Pressure
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides a pressure detection method for an internal screw rod of an injection molding machine, which comprises a detection device, wherein the detection device comprises a base, four corners of the lower end of the base are fixedly connected with supporting feet, and the left side and the right side of the upper end of the base are respectively and vertically and fixedly connected with a supporting plate and a supporting frame. After accomplishing the clamping of screw rod in the injection molding machine, can drive the camera through linear electric motor and remove on the slide rail, thereby can record the levelness of screw rod in the injection molding machine this moment, the rethread pneumatic cylinder drives the position limiting ring and pushes down the back to the intermediate position of screw rod, the levelness of screw rod in the injection molding machine this moment is recorded to the rethread camera, levelness before and after the screw rod pressurized in the injection molding machine through contrast, thereby can detect out the compressive capacity of screw rod in the injection molding machine, it is more accurate for artifical the detection, can drive the screw rod through third servo motor and rotate certain angle, thereby can follow the angle of difference and carry out many times pressure test to the screw rod.
Description
Technical Field
The invention relates to the technical field of injection molding machines, in particular to a method for detecting the pressure of a screw rod in an injection molding machine.
Background
An injection molding machine is also known as an injection molding machine or an injection machine. The main forming equipment for making various shapes of plastic products from thermoplastic plastics or thermosetting plastics by using plastic forming dies is divided into vertical, horizontal and full-electric types. An injection molding machine heats plastic, injects the molten plastic to fill a cavity of a mold by applying high pressure to the plastic, and fills a cavity space of a mold device with a liquid molding material to solidify the molding material to produce a molded product. The mold device is composed of a fixed mold and a movable mold, and a cavity space is formed between the fixed mold and the movable mold during mold closing.
Most injection molding machine's feed mechanism is mostly screw rod feed mechanism, and the screw rod can receive the extrusion of mould intracavity material when carrying out the feeding, consequently, needs to detect the compressive capacity of screw rod, and current detection method is mostly artifical the detection, and is accurate inadequately, and efficiency is lower.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a method for detecting the pressure of a screw rod in an injection molding machine, which solves the problems that most of the existing detection methods are manual detection, are not accurate enough and have lower efficiency.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a pressure detection method for an internal screw rod of an injection molding machine comprises a detection device, wherein the detection device comprises a base, supporting feet are fixedly connected at four corners of the lower end of the base, a supporting plate and a supporting frame are vertically and fixedly connected to the left side and the right side of the upper end of the base respectively, a fixing frame is fixedly connected to the upper ends of the supporting plate and the supporting frame, a first sliding groove is formed in the middle position of the right side of the base, a first threaded rod is rotatably connected to the inside of the first sliding groove, a first sliding block is slidably connected to the inside of the first sliding groove, the middle position of the first sliding block is in threaded connection with the first threaded rod, a fixing plate is fixedly connected to the upper end of the first sliding block, a bearing is fixedly connected to the upper end of the left side of the fixing plate, a slide rail is fixedly connected to the middle positions of the rear ends of the supporting plate and the supporting frame, and a linear motor is slidably connected to the front end of the slide rail, the upper end of the linear motor is fixedly connected with a camera.
Preferably, the right side middle position fixedly connected with first servo motor of base, first servo motor's output and the right-hand member fixed connection of first threaded rod.
Preferably, a second sliding groove is formed in the middle of the fixing frame, and a second threaded rod is rotatably connected inside the second sliding groove.
Preferably, the middle position of the left side of the fixing frame is fixedly connected with a second servo motor, and the output end of the second servo motor is fixedly connected with the left end of the second threaded rod.
Preferably, a second sliding block is connected to the inner portion of the second sliding groove in a sliding mode, and the middle position of the second sliding block is in threaded connection with a second threaded rod.
Preferably, the lower end of the second sliding block is fixedly connected with a hydraulic cylinder, and the output end of the hydraulic cylinder is fixedly connected with a limiting ring.
Preferably, the upper end of the right side of the supporting plate is fixedly connected with a third servo motor, the output end of the third servo motor penetrates through the supporting plate and is fixedly connected with a three-jaw chuck, and the upper side of the front end of the supporting frame is fixedly connected with an operation display screen.
A pressure detection method for an internal screw of an injection molding machine comprises the following steps:
a. one end of a screw rod in the injection molding machine is fixed by using a three-jaw chuck, and then a first servo motor is started by operating a display screen to drive a first screw rod to rotate according to the length of the screw rod in the injection molding machine, so that a first sliding block can be driven to slide along a first sliding groove, and a bearing on the left side of a fixing plate can be driven to move, so that the other end of the screw rod in the injection molding machine can be limited;
b. after the screw in the injection molding machine is clamped, the camera is driven to move on the sliding rail through the linear motor, the levelness of the screw in the injection molding machine is recorded, the second servo motor is controlled to rotate through operating the display screen, so that the second screw can be driven to rotate, the second sliding block can be driven to move along the second sliding groove, the hydraulic cylinder can move along the second sliding groove, the hydraulic cylinder is moved to the middle position of the screw in the injection molding machine, the hydraulic cylinder is started to drive the limiting ring to press downwards, the pressure of the hydraulic cylinder on the screw in the injection molding machine is gradually increased until the limit of the load range of the screw in the injection molding machine is reached, and then the piston rod of the hydraulic cylinder is retracted;
c. and driving the camera to move on the slide rail by the linear motor, recording the levelness of the screw rod in the injection molding machine at the moment, and comparing the levelness of the screw rod in the injection molding machine before and after being pressed, so that the compression resistance of the screw rod in the injection molding machine can be detected, wherein the screw rod is qualified if the deformation quantity is small, and the screw rod is unqualified if the deformation quantity is large.
The working principle is as follows: when in use, one end of a screw rod in the injection molding machine is fixed by using a three-jaw chuck, then the first servo motor is started to drive the first screw rod to rotate by operating the display screen according to the length of the screw rod in the injection molding machine, so that the first sliding block can be driven to slide along the first sliding groove, and further the bearing on the left side of the fixing plate can be driven to move, so that the other end of the screw rod in the injection molding machine can be limited, the camera is driven to move on the sliding rail by the linear motor, the levelness of the screw rod in the injection molding machine is recorded, the second servo motor is controlled to rotate by operating the display screen, so that the second screw rod can be driven to rotate, and further the second sliding block can be driven to move along the second sliding groove, so that the hydraulic cylinder can move along the sliding rail, the hydraulic cylinder moves to the middle position of the screw rod in the injection molding machine, and the hydraulic cylinder is started to drive the limiting ring to press down, the pressure of the hydraulic cylinder on the internal screw of the injection molding machine is gradually increased until the limit of the load range of the internal screw of the injection molding machine is reached, then the piston rod of the hydraulic cylinder is retracted, the camera is driven by the linear motor to move on the slide rail, the levelness of the internal screw of the injection molding machine at the moment is recorded, and the levelness of the internal screw of the injection molding machine before and after being pressed is compared, so that the pressure resistance of the internal screw of the injection molding machine can be detected, wherein the internal screw of the injection molding machine is qualified if the deformation quantity is small, and the internal screw of the injection molding machine is unqualified if the deformation quantity is large.
(III) advantageous effects
The invention provides a method for detecting the pressure of a screw in an injection molding machine. The method has the following beneficial effects:
1. according to the method for detecting the pressure of the screw rod in the injection molding machine, one end of the screw rod in the injection molding machine can be fixed through the three-jaw chuck, the distance between the fixing plate and the supporting plate is adjusted according to the length of the screw rod, and the other end of the screw rod is limited through the bearing, so that the method is suitable for detecting the screw rods with different lengths.
2. This method for detecting pressure of screw rod in injection molding machine, after accomplishing the clamping of screw rod in injection molding machine, can drive the camera through linear electric motor and move on the slide rail, thereby can take notes the levelness of screw rod in injection molding machine this moment, rethread pneumatic cylinder drives the check ring and pushes down the back to the intermediate position of screw rod, rethread camera record this moment the levelness of screw rod in injection molding machine, levelness before and after the screw rod pressurized through contrast injection molding machine, thereby can detect out the compressive capacity of screw rod in injection molding machine, it is more accurate for artifical the detection, can drive the screw rod through third servo motor and rotate certain angle, thereby can follow the angle of difference and carry out many times pressure test to the screw rod, make the detection more accurate.
Drawings
FIG. 1 is a left side view of the present invention;
FIG. 2 is a right side view of the present invention;
fig. 3 is a bottom view of the present invention.
Wherein, 1, a base; 2. supporting a ground foot; 3. a first chute; 4. a first threaded rod; 5. a support plate; 6. a support frame; 7. a third servo motor; 8. a slide rail; 9. a fixed mount; 10. a fixing plate; 11. a bearing; 12. operating the display screen; 13. a second servo motor; 14. a second chute; 15. a second threaded rod; 16. a second slider; 17. a hydraulic cylinder; 18. a limiting ring; 19. a linear motor; 20. a camera; 21. a three-jaw chuck; 22. a first servo motor; 23. a first slider.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
as shown in fig. 1-2, an embodiment of the present invention provides a method for detecting a pressure of a screw in an injection molding machine, including a detection device, the detection device includes a base 1, four corners of a lower end of the base 1 are fixedly connected with supporting feet 2, a left side and a right side of an upper end of the base 1 are respectively and vertically and fixedly connected with a supporting plate 5 and a supporting frame 6, upper ends of the supporting plate 5 and the supporting frame 6 are fixedly connected with a fixing frame 9, a first chute 3 is formed in a middle position of a right side of the base 1, a first screw rod 4 is rotatably connected inside the first chute 3, a first slide block 23 is slidably connected inside the first chute 3, a middle position of the first slide block 23 is in threaded connection with the first screw rod 4, a fixed plate 10 is fixedly connected to an upper end of the first slide block 23, a bearing 11 is fixedly connected to an upper end of a left side of the fixed plate 10, a slide rail 8 is fixedly connected to a middle position of a rear end of the supporting plate 5 and the supporting frame 6, front end sliding connection of slide rail 8 has linear electric motor 19, linear electric motor 19's upper end fixedly connected with camera 20, accomplish the back with the screw clamping in the injection molding machine, can drive camera 20 through linear electric motor 19 and remove on slide rail 8, thereby can record the levelness of screw in the injection molding machine this moment, rethread pneumatic cylinder 17 drives the intermediate position of spacing ring 18 to the screw and pushes down the back, rethread camera 20 records the levelness of screw in the injection molding machine this moment, levelness around through comparing the screw pressurized in the injection molding machine, thereby can detect out the compressive capacity of screw in the injection molding machine, it is more accurate for artifical the detection, can drive the screw through third servo motor 7 and rotate certain angle, thereby can carry out many times pressure test to the screw from different angles, make the detection more accurate.
As shown in fig. 3, a first servo motor 22 is fixedly connected to the middle position of the right side of the base 1, the output end of the first servo motor 22 is fixedly connected to the right end of the first threaded rod 4, a second sliding chute 14 is formed in the middle position of the fixed frame 9, a second threaded rod 15 is rotatably connected to the inside of the second sliding chute 14, a second servo motor 13 is fixedly connected to the middle position of the left side of the fixed frame 9, the output end of the second servo motor 13 is fixedly connected to the left end of the second threaded rod 15, a second sliding block 16 is slidably connected to the inside of the second sliding chute 14, the middle position of the second sliding block 16 is in threaded connection with the second threaded rod 15, a hydraulic cylinder 17 is fixedly connected to the lower end of the second sliding block 16, a limit ring 18 is fixedly connected to the output end of the hydraulic cylinder 17, a third servo motor 7 is fixedly connected to the upper end of the right side of the support plate 5, a three-jaw chuck 21 is fixedly connected to the output end of the third servo motor 7, the front end upper side fixedly connected with operation display screen 12 of support frame 6 can be fixed the one end of screw rod in the injection molding machine through three-jaw chuck 21, adjusts the distance between fixed plate 10 and backup pad 5 according to the length of screw rod again, carries on spacingly to the other end of screw rod through bearing 11 to can be applicable to the detection of the screw rod of different length.
A method for detecting the pressure of an internal screw of an injection molding machine comprises the following steps:
a. one end of an internal screw rod of the injection molding machine is fixed by using a three-jaw chuck 21, and then according to the length of the internal screw rod of the injection molding machine, a first servo motor 22 is started by operating a display screen 12 to drive a first screw rod 4 to rotate, so that a first sliding block 23 can be driven to slide along a first sliding groove 3, a bearing 11 on the left side of a fixing plate 10 can be driven to move, and the other end of the internal screw rod of the injection molding machine can be limited;
b. after the internal screw of the injection molding machine is clamped, the linear motor 19 drives the camera 20 to move on the slide rail 8, the levelness of the internal screw of the injection molding machine is recorded, the second servo motor 13 is controlled to rotate by operating the display screen 12, so that the second screw 15 can be driven to rotate, the second slide block 16 can be driven to move along the second slide groove 14, the hydraulic cylinder 17 can move along with the second slide groove, the hydraulic cylinder 17 moves to the middle position of the internal screw of the injection molding machine, the hydraulic cylinder 17 is started to drive the limiting ring 18 to press downwards, the pressure of the hydraulic cylinder 17 on the internal screw of the injection molding machine is gradually increased until the limit of the load range of the internal screw of the injection molding machine is reached, and then the piston rod of the hydraulic cylinder 17 is retracted;
c. and then the linear motor 19 drives the camera 20 to move on the slide rail 8, the levelness of the screw rod in the injection molding machine at the moment is recorded, and the levelness of the screw rod in the injection molding machine before and after being pressed is compared, so that the compression resistance of the screw rod in the injection molding machine can be detected, if the deformation quantity is small, the screw rod is qualified, and if the deformation quantity is large, the screw rod is unqualified.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A pressure detection method for an internal screw of an injection molding machine is characterized by comprising the following steps: comprises a detection device, the detection device comprises a base (1), the lower end four corners of the base (1) are fixedly connected with supporting feet (2), the left side and the right side of the upper end of the base (1) are respectively and vertically and fixedly connected with a supporting plate (5) and a supporting frame (6), the upper ends of the supporting plate (5) and the supporting frame (6) are fixedly connected with a fixing frame (9), the right middle position of the base (1) is provided with a first sliding chute (3), the inside of the first sliding chute (3) is rotatably connected with a first threaded rod (4), the inside of the first sliding chute (3) is slidably connected with a first sliding block (23), the middle position of the first sliding block (23) is in threaded connection with the first threaded rod (4), the upper end of the first sliding block (23) is fixedly connected with a fixed plate (10), the left upper end of the fixed plate (10) is fixedly connected with a bearing (11), the utility model discloses a camera, including backup pad (5), support frame (6), front end sliding connection has linear electric motor (19), the rear end intermediate position fixedly connected with slide rail (8) of backup pad (5) and support frame (6), the front end sliding connection of slide rail (8), the upper end fixedly connected with camera (20) of linear electric motor (19).
2. The method for detecting the pressure of the screw in the injection molding machine according to claim 1, wherein: the right side intermediate position fixedly connected with first servo motor (22) of base (1), the output of first servo motor (22) and the right-hand member fixed connection of first threaded rod (4).
3. The method for detecting the pressure of the screw of the injection molding machine according to claim 1, wherein: a second sliding chute (14) is formed in the middle of the fixing frame (9), and a second threaded rod (15) is rotatably connected inside the second sliding chute (14).
4. The method for detecting the pressure of the screw in the injection molding machine according to claim 3, wherein: the left side intermediate position fixedly connected with second servo motor (13) of mount (9), the output of second servo motor (13) and the left end fixed connection of second threaded rod (15).
5. The method for detecting the pressure of the screw of the injection molding machine according to claim 3, wherein: the inside sliding connection of second spout (14) has second slider (16), the intermediate position and the second threaded rod (15) threaded connection of second slider (16).
6. The method for detecting the pressure of the screw in the injection molding machine according to claim 4, wherein: the lower extreme fixedly connected with pneumatic cylinder (17) of second slider (16), the output fixedly connected with spacing ring (18) of pneumatic cylinder (17).
7. The method for detecting the pressure of the screw in the injection molding machine according to claim 1, wherein: the right side upper end fixedly connected with third servo motor (7) of backup pad (5), backup pad (5) fixedly connected with three-jaw chuck (21) is run through to the output of third servo motor (7), front end upside fixedly connected with operation display screen (12) of support frame (6).
8. A method for detecting a screw pressure in an injection molding machine, the detection apparatus according to any one of claims 1 to 7, characterized in that: the method comprises the following steps:
a. one end of an internal screw rod of the injection molding machine is fixed by a three-jaw chuck (21), and then a first servo motor (22) is started by operating a display screen (12) to drive a first screw rod (4) to rotate according to the length of the internal screw rod of the injection molding machine, so that a first sliding block (23) can be driven to slide along a first sliding groove (3), a bearing (11) on the left side of a fixing plate (10) can be driven to move, and the other end of the internal screw rod of the injection molding machine can be limited;
b. after the screw in the injection molding machine is clamped, a camera (20) is driven to move on a sliding rail (8) through a linear motor (19), the levelness of the screw in the injection molding machine is recorded, a second servo motor (13) is controlled to rotate through operating a display screen (12), so that a second screw rod (15) can be driven to rotate, a second sliding block (16) can be driven to move along a second sliding groove (14), a hydraulic cylinder (17) can move along with the second sliding groove, the hydraulic cylinder (17) is moved to the middle position of the screw in the injection molding machine, the hydraulic cylinder (17) is started to drive a limiting ring (18) to press downwards, the pressure of the hydraulic cylinder (17) on the screw in the injection molding machine is gradually increased until the limit of the screw load range in the injection molding machine is reached, and then the piston rod of the hydraulic cylinder (17) is retracted;
c. and then the linear motor (19) drives the camera (20) to move on the slide rail (8), the levelness of the screw rod in the injection molding machine at the moment is recorded, and the levelness of the screw rod in the injection molding machine before and after being pressed is compared, so that the pressure resistance of the screw rod in the injection molding machine can be detected, if the deformation quantity is small, the screw rod is qualified, and if the deformation quantity is large, the screw rod is unqualified.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111663949.6A CN114474638A (en) | 2021-12-30 | 2021-12-30 | Method for detecting pressure of screw rod in injection molding machine |
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| CN202111663949.6A CN114474638A (en) | 2021-12-30 | 2021-12-30 | Method for detecting pressure of screw rod in injection molding machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112485124A (en) * | 2020-11-21 | 2021-03-12 | 山东艾泰克环保科技股份有限公司 | Steering cylinder pressure detection equipment |
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| CN213544211U (en) * | 2020-11-22 | 2021-06-25 | 苏州万捷盛金属制品有限公司 | Detection tool for precise parts of photoelectric semiconductor equipment |
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