CN109761051A - Dry bean curd stacking machine and its palletizing method - Google Patents
Dry bean curd stacking machine and its palletizing method Download PDFInfo
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- CN109761051A CN109761051A CN201910241151.9A CN201910241151A CN109761051A CN 109761051 A CN109761051 A CN 109761051A CN 201910241151 A CN201910241151 A CN 201910241151A CN 109761051 A CN109761051 A CN 109761051A
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- bean curd
- dry bean
- stacking
- frame
- drawbar
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- 235000013527 bean curd Nutrition 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 230000003028 elevating effect Effects 0.000 claims abstract description 17
- 230000009471 action Effects 0.000 claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
- 235000010627 Phaseolus vulgaris Nutrition 0.000 claims abstract description 8
- 244000046052 Phaseolus vulgaris Species 0.000 claims abstract description 8
- 230000017105 transposition Effects 0.000 claims description 26
- 230000000694 effects Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 235000005911 diet Nutrition 0.000 description 1
- 230000000378 dietary effect Effects 0.000 description 1
- 235000001497 healthy food Nutrition 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The present invention relates to a kind of dry bean curd stacking machine and its palletizing method, stacking machine includes: frame, drawbar, bracket, gear press mechanism and elevating mechanism;Supporting plate is placed on tilting rack when stacking, the dry bean curd that dry bean card production equipment prepares is hung on drawbar, drawbar hangs dry bean curd and enters stacking machine, in the presence of cylinder, manipulator rotation rises, and supporting plate is passed through in dry bean curd bottom, and manipulator rotation, which rises, pushes down dry bean curd one end, drawbar drives dry bean curd to continue to travel forward in the slideway in frame, makes dry bean curd is smooth to be placed on supporting plate;When stacking is to certain altitude, bracket reduces under the action of elevating mechanism, and manipulator is made to can continue to press;After the good dry bean curd of stacking is taken away, bracket rises under the action of elevating mechanism.Dry bean curd stacking of the invention can be realized automatic stacking, saves palletization times, improves work efficiency, reduce production cost, cleaner without the dry bean curd of manual stacking, the dry bean curd layer that stacking is eaten is more neat.
Description
Technical field
The present invention relates to a kind of Palletizers, more particularly to a kind of dry bean curd stacking machine and its palletizing method.
Background technique
Bean product are the generally acknowledged healthy food in the whole world, and dry bean curd system specialties of the Northeast are also " the dry bean curd in northeast ", are a kind of
It is pressed into laminar bean-curd product.Dry bean curd is daily along with the dietetic life of people, over the past thousands of years deeply by the clock of Chinese people
Love.Its not still making material of various cuisines, itself is also dish exquisite together.The dry bean curd before sales needs produced
Artificial many pieces of stacking.The dry bean curd amount of producer's production is very big, and the dry bean curd of stacking can consume a large amount of manpower and material resources, can mention
The production cost of high level cadre's bean curd reduces the working efficiency for producing dry bean curd.
Summary of the invention
It is a primary object of the present invention to provide a kind of dry bean curd stacking machine and its palletizing method, technology to be solved
Problem be can the dry bean curd of automatic stacking, improve working efficiency, thus more suitable for practical.
The object of the invention to solve the technical problems adopts the following technical solutions to realize.It proposes according to the present invention
, dry bean curd stacking machine, comprising: frame, Jie Zhang mechanism, drawbar, the Jie Zhang mechanism are arranged in the frame;Described
Frame includes symmetrically arranged left and right frame, and the slideway of operation drawbar is equipped on the inside of the left and right frame;Jie Zhang mechanism packet
Include bracket, gear press mechanism and elevating mechanism;
The bracket includes chassis, side frame, tilting rack, supporting plate, and the chassis is vertically arranged with side frame, the tilting rack
Both ends are connect with one end of the chassis, side frame respectively, and the other end of the side frame is connected with the other end of chassis;
The elevating mechanism includes a first from left right two X-type cranes, electric pushrod, pin shaft, the axis being arranged under bracket
I, axis II, the X-type crane includes the first transposition arm and the second transposition arm, among first transposition arm and the second transposition arm
It is connected by the pin shaft, two first transposition arm bottoms of two X-type cranes are solid by the axis I and the frame
Fixed connection, two second transposition arm bottoms are connected by the axis II, and electric pushrod is equipped among the axis I and axis II,
The top of second transposition arm is fixedly connected with the bottom of the chassis, at the top of first transposition arm by pulley with it is described
The bottom of chassis connects;
The gear press mechanism includes two manipulators, connecting shaft, cylinder, adjustable plate, baffle, connecting plates, two manipulators
It is rotatably installed in connecting shaft, connecting shaft is fixedly connected with the connecting plate, and the cylinder is fixed on connecting plate, cylinder head
It connect with the one end of the connecting shaft, is fixed on the connecting plate at the top of the baffle, the baffle sets that there are two through-holes, described
Manipulator can pass through through-hole in the presence of cylinder;The connecting plate bottom is equipped with the adjustable plate, on the adjustable plate
Equipped with pin hole, second transposition arm is connect by axis II with adjustable plate, and the connecting plate is connect with the bracket.
The object of the invention to solve the technical problems also can be used following technical measures and further realize.
Preferably, dry bean curd stacking machine above-mentioned, wherein two manipulators are mounted on connecting shaft by bearing.
Preferably, dry bean curd stacking machine above-mentioned, wherein the manipulator includes mechanical arm and is arranged in manipulator
Briquetting at the top of arm.
Preferably, dry bean curd stacking machine above-mentioned, wherein the one end of the connecting shaft is equipped with sprocket wheel, the cylinder head is logical
Chain is crossed to connect with sprocket wheel.
Also the following technical solution is employed for the object of the invention to solve the technical problems to realize.It proposes according to the present invention
A kind of method using dry bean curd stacking machine stacking of the invention, comprising the following steps: supporting plate is placed on tilting rack, lead to
The dry bean curd that overdrying bean card production equipment prepares is hung on drawbar, and drawbar hangs dry bean curd and enters stacking machine by baffle,
Under the action of cylinder, manipulator rotation rises, and supporting plate is passed through in dry bean curd bottom, and manipulator rotation, which rises, pushes down dry bean curd one end,
Drawbar drives dry bean curd to continue to travel forward in the slideway in frame, makes dry bean curd is smooth to be placed on supporting plate;When dry beans
When rotten stacking is to certain height, entire bracket reduces under the action of elevating mechanism, and manipulator is made to can continue to press;Work as code
After the good dry bean curd of pile is taken away, bracket rises under the action of elevating mechanism.
By above-mentioned technical proposal, the dry bean curd stacking machine of the present invention and its palletizing method are at least had the advantage that
Dry bean curd stacking of the invention can be realized automatic stacking, saves palletization times, improves work efficiency, and reduce
Production cost, cleaner without the dry bean curd of manual stacking, the dry bean curd layer of stacking is more neat.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention and the accompanying drawings.
Detailed description of the invention
Fig. 1 is the schematic diagram of dry bean curd stacking machine of the invention, and 1a is main view, and 1b is left view, and 1c is top view.
Fig. 2 is the structural schematic diagram of frame in the present invention;2a is the main view of frame, and 2b is left view, and 2c is top view;
Fig. 3 is the structural schematic diagram of Zhong Jiezhang mechanism of the present invention;3a is the main view of Jie Zhang mechanism, and 3b is left view, 3c
For top view
Fig. 4 is the structural schematic diagram of bracket in the present invention;4a is the main view of bracket, and 4b is left view, and 4c is top view;
Fig. 5 is the structural schematic diagram of X-type crane in the present invention;5a is main view, and 5b is left view;
Fig. 6 is the structural schematic diagram that press mechanism is kept off in the present invention;6a is main view, and 6b is left view;
Specific embodiment
It is of the invention to reach the technical means and efficacy that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Attached drawing and preferred embodiment, to dry bean curd stacking machine proposed according to the present invention and its palletizing method its specific embodiment, spy
Sign, structure and its effect, detailed description is as follows.In the following description, different " embodiment " or " embodiment " refers to different
It surely is the same embodiment.In addition, the special characteristic, structure or feature in one or more embodiments can be by any suitable form groups
It closes.
Following embodiment material therefor, method and instrument, without specified otherwise, be this field conventional material, method and
Instrument, those of ordinary skill in the art can be obtained by commercial channel.
The present invention in following description, it should be noted that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The indicating positions such as "front", "rear", "left", "right", "top", "bottom", "inner", "outside" and " endways " or positional relationship are based on attached drawing
Shown in orientation or positional relationship, be merely for convenience of description of the present invention and simplification of the description, rather than indication or suggestion is signified
Device or element must have a particular orientation, be constructed and operated in a specific orientation, it is thus impossible to be interpreted as to of the invention
Limitation.
The present invention in following description, it should be noted that unless otherwise expressly provided and limit, term " installation ",
" connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally connect
It connects;It can be and be directly connected to, be also possible to be indirectly connected with by intermediate medium, can be the connection of two components interiors.For
For those skilled in the art, it can be concrete condition and understand the concrete meaning of term in the present invention of submitting a written statement to a higher authority.
In addition, the present invention in following description, unless otherwise indicated, " multiple ", " multiple groups ", " more " are meant that two
It is a or more than two.
The present invention is described in further details with reference to the accompanying drawing, but following detailed description is not intended as to limit of the invention
It is fixed.
As shown in figures 1 to 6, one embodiment of the present of invention proposes a kind of dry bean curd stacking machine, comprising: frame 1 connects a machine
Structure 2, drawbar (drawing in figure), Jie Zhang mechanism 2 is arranged in the frame 1;As shown in Fig. 2, frame 1 includes symmetrically arranged
Left and right frame, the left and right frame inside are equipped with the slideway 3 of operation drawbar;Guide rail chain can be equipped in slideway (not draw in figure
Out), drawbar is driven to run on the slideway 3 in frame, it (is picture in figure that frame, which is externally provided with and provides the motor of power to guide rail chain,
Out), i.e., the motor drives guide rail chain movement, drives drawbar to move with this.As shown in figure 3, Jie Zhang mechanism 2 includes bracket 4, gear
Press mechanism 5 and elevating mechanism 6;
As shown in figure 4, the bracket 4 (is not drawn into figure including chassis 041, side frame 042, tilting rack 043, supporting plate, is one
A rectangular slab), supporting plate is placed on tilting rack 043,042 setting vertical with side frame of chassis 041, the both ends point of the tilting rack
It is not connect with one end of the chassis, side frame, the other end of the side frame is connected with the other end of chassis;
As shown in figs. 3 and 5, the elevating mechanism 6 include be arranged in bracket 4 under a first from left right side two X-type cranes 7,
Electric pushrod 8, pin shaft 9, axis I 10, axis II 11, X-type crane 7 includes the first transposition arm 071 and the second transposition arm 072, described
It is connected among first transposition arm 071 and the second transposition arm 072 by pin shaft 9, two of two X-type cranes described first are intersected
071 bottom of arm is fixedly connected by axis I 10 with frame, two 072 bottoms of the second transposition arm are connect by axis II 11, I 10 He of axis
Electric pushrod 8 is equipped among axis II 11, the top of the second transposition arm 072 is fixedly connected with the bottom of chassis 041, the first transposition arm
071 top is connect by pulley 12 with the bottom of chassis 041;
Bracket 4 can be with elevating movement under the drive of elevating mechanism 6;
As shown in Fig. 1, Fig. 6, gear press mechanism 5 includes two manipulators 13, cylinder 14, adjustable plate 15, baffle 16, connecting plate
17, connecting shaft 21, two manipulators are mounted in connecting shaft 21 by bearing 18, and cylinder 14 is fixed on connecting plate 17, connection
21 side of axis is equipped with sprocket wheel 22, and cylinder head 17 is connect by chain (being not drawn into figure) with sprocket wheel 22, and cylinder 17 is drivingly connected
Axis, which provides power for manipulator, goes up and down manipulator, is fixed on connecting plate 17 at the top of baffle 16, and baffle 16 is set there are two through-hole
19, manipulator 13 can be risen under the action of cylinder 14 by through-hole 19;17 bottom of connecting plate is set there are two adjustable plate 15, is adjusted
It saves plate 15 and is equipped with pin hole 20, the second transposition arm 072 is connect by axis II 11 with adjustable plate 15;Connecting plate 17 is connect with bracket 4.
Preferably, middle (center) bearing 18 of the present invention is connect with connecting plate 17 by axle bed 23.
Preferably, manipulator 13 includes mechanical arm and the briquetting 1301 being arranged at the top of mechanical arm in the present invention.
Using the method for the dry dry bean curd of bean curd stacking machine stacking of the invention are as follows: supporting plate is placed on tilting rack, dry beans
Rotten production equipment is placed on before stacking machine of the invention, prepares dry bean curd by dry bean card production equipment, and what is prepared is dry
Bean curd is hung on drawbar, and drawbar hangs dry bean curd and enters stacking machine by baffle 16, in the presence of cylinder, in manipulator rotation
It rises (direction that manipulator rises is as shown by the arrows in Figure 2), dry bean curd bottom is by supporting plate, the briquetting of manipulator pushes down dry beans
Rotten one end, drawbar drive dry bean curd to continue to travel forward in the slideway 3 in frame, make dry bean curd it is smooth be placed on supporting plate
On.When dry bean curd stacking is to certain height, entire bracket reduces under the action of elevating mechanism, so that manipulator can be after
Continuous pressing, X-type crane can be gone up and down under the action of electric pushrod, and axis II 11 moves in pin hole 20.It is done when stacking is good
After bean curd is taken away, bracket rises under the action of elevating mechanism.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, according to
According to technical spirit any simple modification, equivalent change and modification to the above embodiments of the invention, this hair is still fallen within
In the range of bright technical solution.
Claims (5)
1. a kind of dry bean curd stacking machine, it is characterised in that: include: frame, Jie Zhang mechanism, drawbar, the Jie Zhang mechanism setting
In the frame;The frame includes symmetrically arranged left and right frame, and operation drawbar is equipped on the inside of the left and right frame
Slideway;The Jie Zhang mechanism includes bracket, gear press mechanism and elevating mechanism;
The bracket includes chassis, side frame, tilting rack, supporting plate, and the chassis is vertically arranged with side frame, the both ends of the tilting rack
It is connect respectively with one end of the chassis, side frame, the other end of the side frame is connected with the other end of chassis;
The elevating mechanism includes a first from left right two X-type cranes, electric pushrod, pin shaft, axis I, axis being arranged under bracket
II, the X-type crane includes the first transposition arm and the second transposition arm, is passed through among first transposition arm and the second transposition arm
Two first transposition arm bottoms of the pin shaft connection, two X-type cranes pass through the axis I and the fixed company of the frame
It connects, two second transposition arm bottoms are connected by the axis II, and electric pushrod is equipped among the axis I and axis II, described
The top of second transposition arm is fixedly connected with the bottom of the chassis, passes through pulley and the chassis at the top of first transposition arm
Bottom connection;
The gear press mechanism includes two manipulators, connecting shaft, cylinder, adjustable plate, baffle, connecting plates, two manipulator rotations
It is mounted in connecting shaft, connecting shaft is fixedly connected with the connecting plate, and the cylinder is fixed on connecting plate, cylinder head and institute
One end of the connecting shaft connection is stated, is fixed on the connecting plate at the top of the baffle, the baffle sets that there are two through-hole, the machinery
Hand can pass through through-hole in the presence of cylinder;The connecting plate bottom is equipped with the adjustable plate, and the adjustable plate is equipped with
Pin hole, second transposition arm are connect by axis II with adjustable plate, and the connecting plate is connect with the bracket.
2. dry bean curd stacking machine according to claim 1, which is characterized in that described two manipulators are mounted on by bearing
Connecting shaft.
3. dry bean curd stacking machine according to claim 1, which is characterized in that the manipulator includes mechanical arm and setting
Briquetting at the top of mechanical arm.
4. dry bean curd stacking machine according to claim 1, which is characterized in that the one end of the connecting shaft is equipped with sprocket wheel, described
Cylinder head is connect by chain with sprocket wheel.
5. a kind of method using dry bean curd stacking machine stacking described in claim 1-4 any one, which is characterized in that including
Following steps: supporting plate is placed on tilting rack, is hung on drawbar by the dry bean curd that dry bean card production equipment prepares, drawbar
It hangs dry bean curd and enters stacking machine by baffle, in the presence of cylinder, manipulator rotation rises, and dry bean curd bottom is by support
Plate, manipulator rotation, which rises, pushes down dry bean curd one end, and drawbar drives dry bean curd to continue to travel forward in the slideway in frame, makes
Dry bean curd is smooth to be placed on supporting plate;When dry bean curd stacking is to certain height, effect of the entire bracket in elevating mechanism
Lower reduction, makes manipulator can continue to press;After the good dry bean curd of stacking is taken away, bracket rises under the action of elevating mechanism
It rises.
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CN201910241151.9A CN109761051B (en) | 2019-03-28 | 2019-03-28 | Dried bean curd stacker and stacking method thereof |
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CN201910241151.9A CN109761051B (en) | 2019-03-28 | 2019-03-28 | Dried bean curd stacker and stacking method thereof |
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CN109761051B CN109761051B (en) | 2023-11-24 |
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Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0543455A1 (en) * | 1991-11-18 | 1993-05-26 | Shikoku Kakoki Co., Ltd. | Apparatus for producing fine-textured soybean curd placed in containers |
US20090001659A1 (en) * | 2007-06-28 | 2009-01-01 | Xerox Corporation | Stack holding device to prevent push-out |
CN202046720U (en) * | 2011-03-15 | 2011-11-23 | 上海旺欣豆制品设备有限公司 | Automatic dried bean curd stacking machine |
CN202214014U (en) * | 2011-08-26 | 2012-05-09 | 山东大学 | Foam block slice stacking equipment |
CN204643178U (en) * | 2015-04-23 | 2015-09-16 | 温岭市永进机械制造有限公司 | A kind of dried bean curd stacking machine structure |
CN105857718A (en) * | 2016-06-16 | 2016-08-17 | 吉林省农业机械研究院 | Layered film-covering finishing device of dried bean curd |
CN206842679U (en) * | 2017-06-26 | 2018-01-05 | 金乡县华盛彩印包装制品有限公司 | A kind of corrugated board basket-hanging stacking machine |
CN206969843U (en) * | 2017-07-28 | 2018-02-06 | 安吉志达包装厂 | A kind of cardboard stacks collection device |
CN108157522A (en) * | 2017-12-27 | 2018-06-15 | 山西瑞飞机械制造有限公司 | A kind of dried bean curd production line and its method for producing dried bean curd |
CN209939898U (en) * | 2019-03-28 | 2020-01-14 | 辽宁大河富华豆制品设备制造有限公司 | Dried bean curd stacking machine |
-
2019
- 2019-03-28 CN CN201910241151.9A patent/CN109761051B/en active Active
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0543455A1 (en) * | 1991-11-18 | 1993-05-26 | Shikoku Kakoki Co., Ltd. | Apparatus for producing fine-textured soybean curd placed in containers |
US20090001659A1 (en) * | 2007-06-28 | 2009-01-01 | Xerox Corporation | Stack holding device to prevent push-out |
CN202046720U (en) * | 2011-03-15 | 2011-11-23 | 上海旺欣豆制品设备有限公司 | Automatic dried bean curd stacking machine |
CN202214014U (en) * | 2011-08-26 | 2012-05-09 | 山东大学 | Foam block slice stacking equipment |
CN204643178U (en) * | 2015-04-23 | 2015-09-16 | 温岭市永进机械制造有限公司 | A kind of dried bean curd stacking machine structure |
CN105857718A (en) * | 2016-06-16 | 2016-08-17 | 吉林省农业机械研究院 | Layered film-covering finishing device of dried bean curd |
CN206842679U (en) * | 2017-06-26 | 2018-01-05 | 金乡县华盛彩印包装制品有限公司 | A kind of corrugated board basket-hanging stacking machine |
CN206969843U (en) * | 2017-07-28 | 2018-02-06 | 安吉志达包装厂 | A kind of cardboard stacks collection device |
CN108157522A (en) * | 2017-12-27 | 2018-06-15 | 山西瑞飞机械制造有限公司 | A kind of dried bean curd production line and its method for producing dried bean curd |
CN209939898U (en) * | 2019-03-28 | 2020-01-14 | 辽宁大河富华豆制品设备制造有限公司 | Dried bean curd stacking machine |
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