CN109648906B - Squeezer and electric protection device - Google Patents
Squeezer and electric protection device Download PDFInfo
- Publication number
- CN109648906B CN109648906B CN201910103465.2A CN201910103465A CN109648906B CN 109648906 B CN109648906 B CN 109648906B CN 201910103465 A CN201910103465 A CN 201910103465A CN 109648906 B CN109648906 B CN 109648906B
- Authority
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- China
- Prior art keywords
- proximity switch
- protection device
- preset height
- pressing block
- plc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000003825 pressing Methods 0.000 claims abstract description 70
- 238000006073 displacement reaction Methods 0.000 claims abstract description 40
- 230000002159 abnormal effect Effects 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 15
- 230000001174 ascending effect Effects 0.000 claims abstract description 4
- 238000004891 communication Methods 0.000 claims description 13
- 230000000630 rising effect Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims 2
- 230000006378 damage Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000004278 EU approved seasoning Substances 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000013124 brewing process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 235000015067 sauces Nutrition 0.000 description 1
- 235000013555 soy sauce Nutrition 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B9/00—Presses specially adapted for particular purposes
- B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
- B30B9/04—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using press rams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/16—Control arrangements for fluid-driven presses
- B30B15/166—Electrical control arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/28—Arrangements for preventing distortion of, or damage to, presses or parts thereof
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Presses And Accessory Devices Thereof (AREA)
- Level Indicators Using A Float (AREA)
Abstract
The invention discloses a squeezer and an electric protection device, wherein the electric protection device comprises a displacement sensor, a driving piece and a first proximity switch. The electric protection device that this scheme provided cooperates with first proximity switch through displacement sensor in order to detect whether the briquetting descends abnormally. If the pressing block abnormally descends and the descending position reaches the first preset height, a signal is sent to the PLC through the first proximity switch, the PLC controls the driving assembly to drive the pressing block to ascend to the second preset height, if the pressing block continuously descends and the abnormally descending position reaches the first preset height after ascending to the second preset height, the process is repeated, meanwhile, the PLC sends a signal to the alarm device, and the alarm device generates an alarm lamp flashing light and a buzzer to remind workers of abnormal descending of the pressing block and timely maintain the squeezer.
Description
Technical Field
The invention relates to the technical field of food processing, in particular to a squeezer and an electric protection device.
Background
In the brewing process of seasonings such as soy sauce, the sauce residues can be rapidly separated through the squeezing process, so that the brewing time is shortened.
As shown in FIG. 1, the squeezer comprises a fixing seat, a hydraulic cylinder, a guide rod and a pressing block, wherein the cylinder body of the hydraulic cylinder is fixedly arranged on the fixing seat, the piston rod of the hydraulic cylinder is connected with the upper end of the pressing block, the guide rod is positioned on two sides of the axial direction of the hydraulic cylinder, the upper end of the guide rod is in sliding fit with the fixing seat, the lower end of the guide rod is fixedly connected with the upper end of the pressing block, and the guide rod and the pressing block synchronously move. The pressing block moves downwards to press the materials in the pressing cage, and the pressing block moves upwards to press the materials in the pressing cage.
The pressing block automatically descends to abnormally descend due to electrical reasons or mechanical reasons, the abnormal descending of the pressing block possibly causes damage to a pressing cage, damage to the pressing block or damage to a hydraulic cylinder, and even injury to staff is caused when serious.
Therefore, how to prevent the abnormal falling of the pressing block, so as to reduce the loss caused by the abnormal falling of the pressing block and reduce the potential safety hazard to the staff caused by the abnormal falling of the pressing block, is a technical problem to be solved by the technicians in the field.
Disclosure of Invention
In view of the above, the invention provides an electrical protection device to prevent abnormal descent of a pressing block, reduce loss caused by abnormal descent of the pressing block, and reduce potential safety hazards caused by abnormal descent of the pressing block to staff. The invention also provides a squeezer.
In order to achieve the above purpose, the present invention provides the following technical solutions:
an electrical protection device, suitable for use in a press, comprising:
A displacement sensor mountable on a guide bar of the press;
The driving piece is used for driving the pressing block to rise from the first preset height to the second preset height, and the driving piece is in communication connection with the PLC; and
The displacement sensor is used for detecting the first proximity switch which descends to the first preset height, the first proximity switch can be installed at the lower end of the fixing seat of the squeezer, and the first proximity switch is in communication connection with the PLC of the squeezer.
Preferably, in the above electrical protection device, the electrical protection device further includes:
A second proximity switch for detecting the rise of the displacement sensor to the second preset height, the second proximity switch being in communication with the PLC,
The second proximity switch is located directly above the first proximity switch.
Preferably, in the above electrical protection device, the first proximity switch and the second proximity switch are mounted at the lower end of the fixing base through a mounting frame.
Preferably, in the above electrical protection device, the mounting frame is a vertical mounting plate,
The upper end of the vertical mounting plate is connected with the fixing seat, the lower end of the vertical mounting plate is suspended, and mounting holes for mounting the first proximity switch and the second proximity switch are formed in the vertical mounting plate.
Preferably, in the above electrical protection device, the mounting bracket is welded to the fixing base.
Preferably, in the above electrical protection device, the displacement sensor is mounted on the guide rod by a screw.
Preferably, in the above-described electrical protection device, the driving element is a telescopic cylinder.
Preferably, in the above electrical protection device, the driving element and the hydraulic cylinder of the squeezer are integrally formed.
The squeezer comprises a fixing seat, a hydraulic cylinder, a guide rod, a pressing block and a PLC, wherein the PLC is in communication connection with the hydraulic cylinder, and the squeezer further comprises an electrical protection device which is the electrical protection device recorded in any one of the schemes;
the displacement sensor of the electric protection device is arranged on the guide rod,
The first proximity switch of the electrical protection device is arranged below the fixed seat.
Preferably, in the above-mentioned squeezer, the driving element of the electric protection device and the hydraulic cylinder are of an integral structure.
According to the technical scheme, the electric protection device provided by the invention is suitable for a squeezer and comprises a displacement sensor, a driving piece and a first proximity switch. The electric protection device that this scheme provided cooperates with first proximity switch through displacement sensor in order to detect whether the briquetting descends abnormally. If the pressing block abnormally descends and the descending position reaches the first preset height, a signal is sent to the PLC through the first proximity switch, the PLC controls the driving assembly to drive the pressing block to ascend to the second preset height, if the pressing block continuously descends and the abnormally descending position reaches the first preset height after ascending to the second preset height, the process is repeated, meanwhile, the PLC sends a signal to the alarm device, and the alarm device generates an alarm lamp flashing light and a buzzer to remind workers of abnormal descending of the pressing block and timely maintain the squeezer. In order to further optimize the technical scheme, alarm information of abnormal descending of the pressing block needs to be displayed on a display screen of the PLC, and workers are prompted to respond.
The invention also provides a squeezer which comprises a fixed seat, a hydraulic cylinder, a guide rod, a pressing block and a PLC, wherein the PLC is in communication connection with the hydraulic cylinder, and the squeezer further comprises an electric protection device. Because the electrical protection device has the technical effects, the squeezer with the electrical protection device has the same technical effects, and the details are not repeated here.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of a press according to an embodiment of the present invention;
Fig. 2 is a schematic structural diagram of a displacement sensor of an electrical protection device according to an embodiment of the present invention in cooperation with a second proximity switch;
fig. 3 is a schematic structural diagram of a displacement sensor of an electrical protection device according to an embodiment of the present invention in cooperation with a first proximity switch.
1. The second proximity switch, 2, the first proximity switch, 3, the mounting bracket, 4, displacement sensor, 5, guide arm, 6, fixing base, 7, pneumatic cylinder, 8, briquetting.
Detailed Description
The invention discloses an electrical protection device, which is used for preventing an abnormal descending of a pressing block, reducing the loss caused by the abnormal descending of the pressing block and reducing the potential safety hazard to workers caused by the abnormal descending of the pressing block. The invention also discloses a squeezer.
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of a squeezer according to an embodiment of the present invention; fig. 2 is a schematic structural diagram of a displacement sensor of an electrical protection device according to an embodiment of the present invention in cooperation with a second proximity switch; fig. 3 is a schematic structural diagram of a displacement sensor of an electrical protection device according to an embodiment of the present invention in cooperation with a first proximity switch.
The invention discloses an electrical protection device which is suitable for a squeezer and comprises a displacement sensor 4, a driving piece and a first proximity switch 2.
Wherein the displacement sensor 4 can be mounted on a guiding rod 5 of the press;
The driving piece is used for driving the pressing block 8 to rise from a first preset height to a second preset height, and is in communication connection with a PLC (programmable logic controller) of the squeezer;
the first proximity switch 2 is used for detecting that the displacement sensor 4 descends to a first preset height, the first proximity switch 2 can be installed at the lower end of the fixing seat 6, and the first proximity switch 2 is in communication connection with the PLC.
Specifically, the displacement sensor 4 is matched with the first proximity switch 2, when the displacement sensor 4 moves downwards to a first preset height along with the guide rod 5 (as shown in fig. 3), the first proximity switch 2 senses the displacement sensor 4, at this time, the first proximity switch 2 sends a signal to the PLC, the PLC controls the driving piece to drive the pressing block 8 to rise to a second preset height from the first preset height (as shown in fig. 2), and the pressing block 8 is prevented from continuously abnormally descending, so that the loss such as damage to a pressing cage, damage to the pressing block 8 or damage to the hydraulic cylinder 7 caused by the abnormal descending of the pressing block 8 is reduced, and meanwhile, the potential safety hazards to workers caused by the abnormal descending of the pressing block 8 are reduced.
When the displacement sensor 4 does not descend along with the pressing block 8 and the guide rod 5, the first proximity switch 2 cannot sense the displacement sensor 4, so that signals cannot be sent to the PLC, and further the driving piece is in a standby state, and at the moment, the driving piece does not drive the pressing block 8 to move.
It should be noted that, the first preset height is a safety height that the press cage is not crushed, the press block 8 is not damaged and the hydraulic cylinder 7 is not damaged when the press block 8 descends abnormally, and the first preset height is selected by a person skilled in the art according to the requirement of the actual working condition, and is not specifically limited herein;
Correspondingly, the second preset height is higher than the first preset height, and as the pressing block cannot damage the pressing cage, the pressing block 8 and the hydraulic cylinder 7 when the first preset height is higher than the first preset height, the pressing block cannot damage the pressing cage, the pressing block 8 and the hydraulic cylinder 7 when the second preset height is higher than the first preset height, and the selection of the second preset height is also selected by a person skilled in the art according to actual working conditions, so that the method is not particularly limited.
The electric protection device that this scheme provided cooperates with first proximity switch 2 through displacement sensor 4 in order to detect whether briquetting 8 abnormal decline. If the pressing block 8 descends abnormally and the descending position reaches the first preset height (as shown in fig. 3), a signal is sent to the PLC through the first proximity switch 2, the PLC controls the driving assembly to drive the pressing block 8 to ascend to the second preset height (as shown in fig. 2), if the pressing block 8 continues to descend abnormally and the position of the abnormal descent reaches the first preset height after ascending to the second preset height, the process is repeated, meanwhile, the PLC sends a signal to the alarm device, and the alarm device generates an alarm lamp flashing light and a buzzer to remind workers that the pressing block 8 descends abnormally and timely maintains the squeezer. In order to further optimize the technical scheme, alarm information of abnormal descending of the pressing block 8 needs to be displayed on a display screen of the PLC, and workers are prompted to respond.
In order to further optimize the technical scheme, the electric protection device provided by the scheme further comprises: and the second proximity switch 1 is in communication connection with the PLC.
The second proximity switch 1 is used for detecting that the displacement sensor 4 rises to a second preset height from a first preset height, when the displacement sensor 4 rises to the second preset height along with the pressing block 8 and the guide rod 5 (as shown in fig. 2) and the displacement sensor 4 rises to the second preset height, the second position switch senses the displacement sensor 4, at this time, the second position switch sends a signal to the PLC, and the control driving part stops continuously driving the pressing block 8 to rise, so that the pressing block 8 stops at the position of the second preset height.
In order to ensure that the displacement sensor 4 can be accurately matched with the first proximity switch 2 and the second proximity switch 1 in the up-and-down movement process, the second proximity switch 1 is located right above the first proximity switch 2, that is, the second proximity switch 1 and the first proximity switch 2 are arranged along the vertical direction and in the same straight line (as shown in fig. 2 and 3).
In a specific embodiment of the solution, the first proximity switch 2 and the second proximity switch 1 are mounted at the lower end of the fixing base 6 by means of the mounting frame 3.
Specifically, the mounting bracket 3 is a vertical mounting plate, and the vertical mounting plate is perpendicular with the lower terminal surface of fixing base 6. Specifically, the upper end and the fixing base 6 of vertical mounting panel are connected, and the lower extreme of vertical mounting panel is unsettled, has offered the mounting hole that is used for installing first proximity switch 2 and second proximity switch 1 on the vertical mounting panel.
The first proximity switch 2 and the second proximity switch 1 are connected with the vertical mounting plate through the mounting holes, so that the connection difficulty of the first proximity switch 2 and the second proximity switch 1 and the mounting frame 3 is reduced, and the connection difficulty of the first proximity switch 2 and the second proximity switch 1 and the fixing seat 6 is also reduced.
In order to ensure the connection strength of the mounting frame 3 and the fixing seat 6, the mounting frame 3 is welded with the fixing seat 6. The welding process is simple and easy to operate, the welding efficiency is high, and the time for connecting the mounting frame 3 and the fixing seat 6 is shortened.
In another embodiment of the present solution, the mounting frame 3 may also be connected to the fixing base 6 by bolts. In this embodiment, the mounting bracket 3 includes a vertical mounting plate for mounting the first proximity switch 2 and the second proximity switch 1 and a horizontal mounting plate for being connected with the fixing base 6, wherein the vertical mounting plate is provided with a mounting hole for mounting the first proximity switch 2 and the second proximity switch 1, the horizontal mounting plate is provided with a bolt hole for mounting a bolt, and the horizontal mounting plate is connected with the fixing base 6 through a bolt.
In order to reduce the connection difficulty of the thread sensor and the guide rod 5, the displacement sensor 4 is arranged on the guide rod 5 in a threaded manner in the scheme. Specifically, the one end of the displacement sensor 4, which is matched with the guide rod 5, is provided with an external thread, the guide rod 5 is provided with a mounting hole for mounting the displacement sensor 4, an internal thread matched with the external thread is arranged in the mounting hole, and the displacement sensor 4 is matched with the internal thread of the mounting hole of the guide rod 5 through the external thread, so that the displacement sensor 4 is connected with the guide rod 5.
Preferably, the driving member is a telescopic cylinder. Specifically, the telescopic cylinder may be the hydraulic cylinder 7 or the air cylinder.
Specifically, the driving element and the hydraulic cylinder 7 may be of an integral structure or a non-integral structure.
When the driving piece of the electric protection device and the hydraulic cylinder 7 are in a non-integrated structure, the driving piece is fixed on the fixed seat 6, and the driving piece acts on the pressing block 8 or the guide rod 5 to realize the rising of the pressing block 8.
When the driving piece and the hydraulic cylinder 7 of the squeezer are of an integrated structure, the driving piece is not required to be arranged independently in the scheme, the driving piece of the electric protection device can be the hydraulic cylinder 7 of the squeezer, the electric protection device and the squeezer share one hydraulic cylinder 7, and the lifting and the descending of the pressing block 8 are realized through the shared hydraulic cylinder 7. The embodiment simplifies the structure of the electric protection device, simplifies the structure of the squeezer, and reduces the manufacturing cost of the electric protection device and the squeezer.
The scheme also provides a squeezer, which comprises a fixing seat 6, a hydraulic cylinder 7, a guide rod 5, a pressing block 8 and a PLC, wherein the PLC is in communication connection with the hydraulic cylinder 7, and the squeezer further comprises an electric protection device which is recorded in any scheme. Wherein, the displacement sensor 4 of the electric protection device is installed on the guide rod 5, the first proximity switch 2 of the electric protection device is installed below the fixed seat 6, the second proximity switch 1 of the electric protection device is also installed below the fixed seat 6, and the second proximity switch 1 is located right above the first proximity switch 2.
Because the electrical protection device has the technical effects, the squeezer with the electrical protection device has the same technical effects, and the details are not repeated here.
The driving piece of the electric protection device and the hydraulic cylinder 7 are of a non-integrated structure, the driving piece is fixed on the fixed seat 6, and the driving piece acts on the pressing block 8 or the guide rod 5 to realize the rising of the pressing block 8.
Preferably, the driving part of the electric protection device and the hydraulic cylinder 7 are of an integrated structure, and the design mode can simplify the structures of the electric protection device and the squeezer, and the driving part is not required to be arranged independently, so that the manufacturing cost of the electric protection device and the squeezer is reduced to a certain extent.
It should be noted that the descriptions related to the "vertical", "horizontal" and other orientations used herein are described with reference to the orientations of the product structure in the drawings, so as to facilitate understanding. In the actual production and use process, the product structure is unchanged, but the arrangement direction and the installation direction of the product cannot be consistent with those in the drawings all the time, so the invention does not limit the installation direction and the like.
Finally, it is further noted that relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. An electrical protection device for use in a press, comprising:
-a displacement sensor (4), said displacement sensor (4) being mountable on a guide rod (5) of said press;
The driving piece is used for driving the pressing block (8) to rise from the first preset height to the second preset height, the driving piece is in communication connection with the PLC, and if the pressing block continuously descends abnormally and the position of the abnormal descending reaches the first preset height after rising to the second preset height, the driving piece drives the pressing block to rise from the first preset height to the second preset height, and meanwhile the PLC sends a signal to the alarm device; and
The first proximity switch (2) is used for detecting that the displacement sensor (4) descends to the first preset height, the first proximity switch (2) can be installed at the lower end of the fixed seat (6) of the squeezer, and the first proximity switch (2) is in communication connection with the PLC of the squeezer;
The device also comprises a second proximity switch (1) for detecting the rise of the displacement sensor (4) to the second preset height, the second proximity switch (1) is in communication connection with the PLC, the second proximity switch (1) is positioned right above the first proximity switch (2),
The first proximity switch (2) and the second proximity switch (1) are arranged at the lower end of the fixed seat (6) through the mounting frame (3) and positioned in the squeezer,
If the pressing block abnormally descends and the descending position reaches the first preset height, a signal is sent to the PLC through the first proximity switch, the PLC controls the driving assembly to drive the pressing block to ascend to the second preset height, if the pressing block continuously descends and the abnormally descending position reaches the first preset height after ascending to the second preset height, the process is repeated, meanwhile, the PLC sends a signal to the alarm device, and the alarm device generates an alarm lamp flashing light and a buzzer to remind workers of abnormal descending of the pressing block and timely maintain the squeezer.
2. An electrical protection device according to claim 1, characterized in that the mounting frame (3) is a vertical mounting plate,
The upper end of the vertical mounting plate is connected with the fixed seat (6), the lower end of the vertical mounting plate is suspended in the air,
And the vertical mounting plate is provided with a mounting hole for mounting the first proximity switch (2) and the second proximity switch (1).
3. The electrical protection device according to claim 1, characterized in that the mounting bracket (3) is welded to the fixing seat (6).
4. An electrical protection device according to claim 1, characterized in that the displacement sensor (4) is mounted on the guide rod (5) by means of a screw thread.
5. An electrical protection device according to claim 1 wherein the drive member is a telescopic cylinder.
6. An electrical protection device according to claim 1, characterized in that the driving member is of unitary construction with the hydraulic cylinder (7) of the press.
7. The squeezer comprises a fixed seat (6), a hydraulic cylinder (7), a guide rod (5), a pressing block (8) and a PLC, wherein the PLC is in communication connection with the hydraulic cylinder (7), and is characterized by further comprising an electrical protection device, and the electrical protection device is the electrical protection device according to any one of claims 1-6;
The displacement sensor (4) of the electric protection device is arranged on the guide rod (5),
The first proximity switch (2) of the electrical protection device is arranged below the fixed seat (6).
8. Press according to claim 7, characterized in that the drive of the electrical protection device is of unitary construction with the hydraulic cylinder (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910103465.2A CN109648906B (en) | 2019-02-01 | 2019-02-01 | Squeezer and electric protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910103465.2A CN109648906B (en) | 2019-02-01 | 2019-02-01 | Squeezer and electric protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109648906A CN109648906A (en) | 2019-04-19 |
| CN109648906B true CN109648906B (en) | 2024-06-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910103465.2A Active CN109648906B (en) | 2019-02-01 | 2019-02-01 | Squeezer and electric protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109648906B (en) |
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| CN201061919Y (en) * | 2007-04-03 | 2008-05-21 | 盐城市华森嘉辰机械有限公司 | Protecting device for hydraulic blanking press |
| CN104608418A (en) * | 2015-02-16 | 2015-05-13 | 宁波长荣酿造设备有限公司 | Safety mechanism of presser for brewing |
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| Publication number | Publication date |
|---|---|
| CN109648906A (en) | 2019-04-19 |
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