CN108639412B - Self-service weighing device - Google Patents
Self-service weighing device Download PDFInfo
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- CN108639412B CN108639412B CN201810423332.9A CN201810423332A CN108639412B CN 108639412 B CN108639412 B CN 108639412B CN 201810423332 A CN201810423332 A CN 201810423332A CN 108639412 B CN108639412 B CN 108639412B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/10—Applying or generating heat or pressure or combinations thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
- B65B61/04—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages
- B65B61/06—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages by cutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
- B65B61/26—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for marking or coding completed packages
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/08—Payment architectures
- G06Q20/20—Point-of-sale [POS] network systems
- G06Q20/208—Input by product or record sensing, e.g. weighing or scanner processing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
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- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Business, Economics & Management (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
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- Basic Packing Technique (AREA)
Abstract
The invention discloses a self-service weighing device, which comprises: a weighing unit; the packaging material mounting unit is arranged above the weighing unit and is provided with an annular containing cavity, the cylindrical packaging material is suitable for being arranged in the containing cavity in a folding mode, an annular material outlet is further formed in the lower end of the packaging material mounting unit, and the material outlet is communicated with the containing cavity; the sealing and shearing unit is used for sealing and shearing the packaging material pulled out of the containing cavity; the intelligent identification unit is arranged above the packaging material installation unit and is suitable for identifying the articles put into the packaging material so as to judge the types and unit prices of the articles put into the packaging material; the control unit is used for controlling the sealing and shearing unit to perform sealing and shearing operations and calculating the total price of the weighed articles; and the label unit is connected with the control unit in a communication mode and is used for printing the total price of the weighed object and/or the identification code containing the price of the object on a label.
Description
Technical Field
The invention relates to a self-service weighing device.
Background
At present, in a supermarket, the weighing of fruits and vegetables is mainly completed manually, and consumers firstly respectively pack different types of fruits and vegetables into one plastic bag, then take the fruits and vegetables to a weighing platform, and pack and weigh the fruits and vegetables one by a salesperson. The efficiency of weighing and packing by salesmen is low, and consumers often arrange long teams at the weighing position, which results in poor consumption experience. In addition, in order to weigh food conveniently, a plastic bag is usually used for each food material, and even if a consumer only purchases a small amount of food materials, the food materials still need to be bagged by a large plastic bag, so that a large amount of plastic is used, and the food materials are wasted and are not environment-friendly.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a self-service weighing device, which can be used for weighing and packing by a consumer.
The purpose of the invention is realized by adopting the following technical scheme:
a self-service weighing apparatus comprising:
a weighing unit for weighing the weight of the article;
the packaging material mounting unit is arranged above the weighing unit and is provided with an annular containing cavity, cylindrical packaging materials are suitable for being arranged in the containing cavity in a folding mode, an annular material outlet is further formed in the lower end of the packaging material mounting unit and is communicated with the containing cavity, and one end of the packaging materials is suitable for being pulled out of the containing cavity through the material outlet;
the sealing and shearing unit is used for sealing and shearing the packaging material pulled out of the containing cavity;
the intelligent identification unit is arranged above the packaging material installation unit and is suitable for identifying the articles put into the packaging material so as to judge the types and unit prices of the articles put into the packaging material;
the control unit is connected with the weighing unit, the sealing and shearing unit and the intelligent identification unit in a communication mode, and is used for controlling the sealing and shearing unit to perform sealing and shearing operations and calculating the total price of the weighed articles according to the weight information obtained by the weighing unit and the unit price information obtained by the intelligent identification unit; and
and the label unit is connected with the control unit in a communication mode and is used for printing the total price of the weighed object and/or the identification code containing the price of the object on a label.
The sealing and shearing unit comprises two clamping arms which are arranged on two sides below the packaging material mounting unit in an openable and closable manner, when the two clamping arms are opened, the packaging material pulled out from the material outlet can be spread, when the two clamping arms are closed, the upper end of the packaging material pulled out from the material outlet is closed, the two clamping arms are provided with an upper sealing part, a lower sealing part and a shearing part arranged between the upper sealing part and the lower sealing part, when the two clamping arms are closed, the upper sealing part and the lower sealing part are suitable for forming an upper sealing part and a lower sealing part on the closed packaging material, and the shearing part is suitable for shearing the packaging material between the two sealing parts, so that the packaging material below and articles inside the packaging material below fall on the weighing unit.
Furthermore, each clamping arm inwards extends an upper sealing part, a lower sealing part and a shearing part in opposite directions, the shearing part is located between the upper sealing part and the lower sealing part, so that the two clamping arms form the upper sealing part and the lower sealing part, the shearing part forms the shearing part, at least one heating device is arranged on the upper sealing part, and at least one heating device is arranged on the lower sealing part, so that when the upper sealing part or the lower sealing part is attached, the packaging material is heated and melted, and sealing is completed.
Furthermore, go up the sealing with all be equipped with elastic element between the clamp arm and down the sealing with clamp arm, elastic element will go up the sealing and the sealing keeps down the place ahead of shearing part, so that two when pressing from both sides the clamp arm and being close to each other, two go up sealing and two the sealing is at first taken place the interact down, two when pressing from both sides the clamp arm and continuing to be close to, two the shearing part just takes place the interaction.
Further, the sealing and shearing unit comprises a clamping support, a horizontal driving device, a vertical driving unit and a contact sensor, wherein the clamping support is vertically movably arranged between the packaging material mounting unit and the weighing unit, the vertical driving unit is used for driving the clamping support to move, the two clamping arms are horizontally movably arranged on the clamping support, the horizontal driving device is used for driving the clamping arms to move, so that the two clamping arms can be close to or far away from each other, the two clamping arms are driven to vertically move when the clamping support vertically moves, the contact sensor is arranged at the lower ends of the two clamping arms, and when the clamping arms vertically move along with the clamping support to the lower ends of the clamping arms to abut against articles in the packaging material, the contact sensor sends information to enable the clamping support to stop moving downwards, the control unit is communicably connected with the horizontal driving means, the vertical driving means, and the contact sensor, thereby controlling the displacement of the clamp arm.
Further, the weighing unit includes base, tray, guide rail, elastic support element and weighing communication module, the vertical setting of guide rail is in on the base, the tray movably install in the guide rail, thereby the tray is suitable for and reciprocates along vertical direction, elastic support element is used for supporting the tray, and make after the tray takes place the displacement the tray resets, the upper surface of tray is equipped with weighing transducer for detect and place the weight of the article on the tray, weighing communication module be used for with weight information that weighing transducer detected sends to the control unit.
Further, the packaging material mounting unit comprises a support, a support ring and a sleeve, the support ring is suspended above the weighing unit through the support, the support ring comprises a cylindrical support ring side wall and a support ring clamping table extending inwards from the lower end of the support ring side wall along the circumference, the sleeve comprises a cylindrical sleeve side wall, an upper sleeve clamping table extending outwards from the upper end of the sleeve side wall along the circumference and a lower sleeve clamping table extending outwards from the lower end of the sleeve side wall along the circumference, the length of the upper sleeve clamping table is greater than that of the lower sleeve clamping table, the sleeve side wall is arranged on the inner side of the support ring side wall, the upper sleeve clamping table is clamped at the upper end of the support ring side wall so as to hold the sleeve on the support ring, and a containing cavity for containing packaging materials is formed between the sleeve side wall and the support ring side wall, the sleeve lower clamping table and the support ring clamping table are spaced, so that the material outlet is formed.
Furthermore, the intelligent identification unit comprises a camera module, an identification module, a data storage module and an identification communication module, wherein the camera module is arranged above the packaging material installation unit, so that the camera range of the camera module covers the inlet of the packaging material, when an article is placed into the packaging material from the inlet, the camera module acquires an image, the identification module is used for identifying the type of the article placed into the packaging material, unit prices of different types of articles are stored in the data storage module, and the identification communication module sends the type of the article identified by the identification module and the unit prices of the articles in the data storage module to the control unit.
Furthermore, the intelligent identification unit also comprises a motion sensor arranged below the camera module, the motion sensor is in signal connection with the camera module, and when the motion sensor detects that an article is put into the packaging material, the camera module is controlled to acquire an image.
Further, the label unit also comprises a manipulator, the manipulator is arranged on one side of the weighing unit, and after the label is printed, the manipulator is used for sticking the label outside the packaged packaging material.
The invention has the beneficial effects that: the consumer can weigh by self, so that the weighing and packing efficiency is improved; the packaging material can be pulled out for a certain length as required, and the waste of the packaging material is reduced.
Drawings
FIG. 1 is a schematic view of a preferred embodiment of the present invention showing the packaging material pulled from the receiving cavity with the lower end unsealed;
fig. 2 is a schematic view showing a step of seal cutting the packaging material by the seal cutting unit according to a preferred embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2;
fig. 4 is a schematic view showing a step of seal cutting the packaging material by the seal cutting unit according to a preferred embodiment of the present invention;
FIG. 5 is a schematic view of a preferred embodiment of the present invention showing the clamping arms spaced apart from each other;
FIG. 6 is a schematic view of a preferred embodiment of the present invention showing the two clamp arms in close proximity to each other;
FIG. 7 is an enlarged view of a portion of FIG. 6;
FIG. 8 is an exploded schematic view of a preferred embodiment according to the present invention;
FIG. 9 is a schematic cross-sectional view of a preferred embodiment of the present invention showing the packaging material in a receiving cavity;
fig. 10 is a schematic diagram of a communication link between a control unit and other units according to a preferred embodiment of the present invention.
In the figure:
1. a weighing unit; 11. a base; 12. a tray; 121. a weight sensor; 13. a guide rail; 14. an elastic support member; 15. a weighing communication module;
2. a packaging material mounting unit; 20. a receiving cavity; 201. a material outlet; 21. a support; 22. a support ring; 221. a support ring sidewall; 222. the support ring is clamped; 23. a sleeve; 231. a sleeve sidewall; 232. a clamping table is arranged on the sleeve; 233. a sleeve lower clamping table;
3. a seal shearing unit; 301. an upper sealing part; 302. a lower sealing part; 303. a shearing section; 31. clamping the bracket; 32. two clamping arms; 321. an upper sealing member; 322. a lower closure member; 323. a cutting member; 324. an elastic element; 33. a horizontal driving device; 34. a vertical drive device; 35. a contact sensor; 36. a clipping communication module;
4. an intelligent identification unit; 41. a camera module; 42. an identification module; 43. a data storage module; 44. identifying a communication module; 45. a motion sensor;
5. a label unit; 51. a label printing unit; 52. a tag communication unit;
6. a packaging material; 61. sealing the upper part; 62. sealing the lower part; 601. an article-containing section; 602. a part to be packaged;
7. a control unit; 71. an operation panel; 72. a display panel; 73. a central processing unit; 74. a central communication module.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
In the description of the present invention, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated without limiting the specific scope of protection of the present invention.
The invention provides a self-service weighing method and a self-service weighing device, which can be used for weighing and packaging food materials by a consumer.
As shown in fig. 1-10, the self-service weighing apparatus of the present invention comprises: weighing unit 1, packaging material installation unit 2, seal shearing unit 3, intelligent identification unit 4, label unit 5 and control unit 7. The weighing unit 1 is used for weighing the weight of an article arranged thereon; the packaging material mounting unit 2 is used for mounting the packaging material 6 and is adapted to provide packaging materials 6 of different lengths according to the size of an article to be packaged; the sealing and shearing unit 3 is used for sealing the packaging material 6 and shearing the sealed packaging material 6; the intelligent identification unit 4 is used for identifying the types of the articles placed on the weighing unit 1 and storing the unit price of each article in a database; the label unit 5 is used for printing the total price and the category of the article on a label with an identification code so as to facilitate checkout; the control unit 7 is communicably connected to the above-described units.
The weighing unit 1 comprises a base 11, a tray 12, a guide rail 13, a resilient support element 14 and a weighing communication module 15. The guide rail 13 is vertically arranged on the base 11; the tray 12 is movably mounted to the guide rails 13 such that the tray 12 is adapted to move up and down in a vertical direction; the elastic supporting element 14 is used for supporting the tray 12 and resetting the tray 12 after the tray 12 is displaced; the upper surface of the tray 12 is provided with a weight sensor 121 for detecting the weight of the article placed on the tray 12. The weighing communication module 15 is configured to send the weight information detected by the weight sensor 121 to the control unit 7.
The packaging material mounting unit 2 is disposed above the tray 12. The packing material attaching unit 2 has a circular ring-shaped housing cavity 20, and the cylindrical packing material 6 is folded and set in the housing cavity 20. The lower end of the packaging material mounting unit 2 is also provided with a circular material outlet 201, and the material outlet 201 is communicated with the containing cavity 20. One end of the packing material 6 is adapted to extend through the material outlet 201 to below the packing material mounting unit 2. In other words, the packaging material 6 can be gradually pulled out of the receiving cavity 20 through the material outlet 201. The wrapping material attaching unit 2 is used for receiving the wrapping material 6 and for expanding the cylindrical wrapping material 6.
Preferably, the packing material mounting unit 2 includes a bracket 21, a support ring 22, and a sleeve 23. One end of the bracket 21 is disposed at the edge of the base 11, and the other end extends from one side of the tray 12 to above the tray 12.
The support ring 22 is suspended above the tray 12 by brackets 21. The support ring 22 includes a cylindrical support ring sidewall 221 and a support ring catch 222 extending circumferentially inward from a lower end of the support ring sidewall 221.
The sleeve 23 includes a cylindrical sleeve side wall 231, an upper sleeve land 232 extending circumferentially outward from an upper end of the sleeve side wall 231, and a lower sleeve land 233 extending circumferentially outward from a lower end of the sleeve side wall 231, the upper sleeve land 232 having a length greater than that of the lower sleeve land 233. The sleeve side wall 231 is arranged on the inner side of the support ring side wall 221, the sleeve upper clamping table 232 is clamped on the upper end of the support ring side wall 221 so as to hold the sleeve 23 on the support ring 22, and a receiving cavity 20 for containing the packaging material 6 is formed between the sleeve side wall 231 and the support ring side wall 221; the sleeve lower land 233 is spaced from the support ring land 222 to form the material outlet 201.
Preferably, the edges of the sleeve lower clamping platform 233 and the support ring clamping platform 222 are made of rubber materials. When the packaging material 6 passes through the material outlet 201, the rubber on the two sides increases the pulling friction force of the packaging material 6, so that the packaging material 6 is prevented from easily falling from the material outlet 201; the rubber material is deformable so that the packing material 6 can be fitted over the sleeve 23 more conveniently.
When the packaging material 6 is installed, the folded packaging material 6 is firstly sleeved on the sleeve 23, then the sleeve 23 is sleeved on the support ring 22, the upper clamping table 233 of the sleeve is clamped on the support side wall 221, and then the lower end of the packaging material 6 is pulled out from the material outlet 201.
In some embodiments, the packaging material 6 is not sealed at both ends when it is loaded into the receiving cavity 20, and as shown in fig. 1, the lower end of the packaging material 6 is sealed by the seal cutting unit 3 after the packaging material 6 is installed and before the first weighing. In other embodiments, the lower end of the packaging material 6 is already sealed when it is loaded into the receiving cavity 20, so that the packaging material 6 can be weighed directly after installation without sealing.
During weighing, the consumer puts into article from the packing material 6 that is strutted in the middle part of sleeve 23, constantly pulls out packing material 6 from accomodating chamber 20 by the weight of article self, and the article falls the back and is supported by tray 12, and along with the increase of article, tray 12 is along guide rail 13 downstream, and packing material 6 is constantly pulled out simultaneously. In other words, the more articles and the larger the size, the longer the wrapping material 6 is pulled out, and the utilization rate and the waste of the wrapping material 6 are high. It is worth mentioning that after the packaging material 6 is used up, a new packaging material 6 is taken out and installed in the receiving cavity 20.
The sealing and cutting unit 3 is provided between the packaging material mounting unit 2 and the tray 12, and is used for sealing and cutting the packaging material 6 drawn out of the storage chamber 20. The seal cutting unit 3 includes an upper seal portion 301, a lower seal portion 302, and a cutting portion 303, the cutting portion 303 is provided between the upper seal portion 301 and the lower seal portion 302, the upper seal portion 301 and the lower seal portion 302 are used to seal the cylindrical packaging material 6, thereby forming an upper seal and a lower seal on the pulled packaging material 6, and the cutting portion 303 is used to cut the packaging material 6 between the upper seal and the lower seal.
As shown in fig. 4 to 7, the seal shearing unit 3 includes a clamp bracket 31, two clamp arms 32, and a horizontal driving device 33. The clamping bracket 31 is arranged on the bracket 21; one end of the two clamping arms 32 is arranged on the clamping bracket 31, the other end extends horizontally to the lower part of the material outlet 201, and at least one clamping arm 32 is arranged on the clamping bracket 31 in a horizontally movable way, so that the two clamping arms 32 can approach or depart from each other; the horizontal driving device 33 is used for driving the clamping arm 32 to move horizontally along the clamping bracket 31, and preferably, the horizontal driving device 33 is a motor. After the packaging material 6 is pulled out from the material outlet 201, it is located between the two clamping arms 32; when the two clamping arms 32 are far away from each other, the packaging material 6 is in an opening state; when the two gripping arms 32 are brought closer together, the gathered upper end of the packaging material 6 is gathered, as shown in fig. 2.
As shown in fig. 3 and 7, the clamp arms 32 extend inwardly toward each other to form an upper closure member 321, a lower closure member 322, and a shear member 323, the shear member 323 being located between the upper closure member 321 and the lower closure member 322. The upper sealing members 321 of the two clamp arms 32 form the upper sealing portion 301, the lower sealing members 322 form the lower sealing portion 302, and the cutting members 323 form the cutting portion 303.
When the two clamping arms 32 are clamped: the two upper sealing members 321 are bonded to each other, and an upper seal 61 is formed on the upper side of the gathered packaging material 6 by a hot-melt method; the two lower sealing members 322 are attached to each other, and a lower seal 62 is formed on the lower side of the gathered packaging material 6 by a hot-melt method; the two shearing pieces 323 are opposite to each other, and the packaging material 6 between the upper seal 61 and the lower seal 62 is sheared to separate the upper seal 61 from the lower seal 62; at this time, the packaging material 6 is divided into two parts, the first part is an article containing part 601, and both ends of the article containing part 601 are sealed, i.e. the packaging is completed; the second part is a part to be packaged 602 above the upper seal 61, one end of the part to be packaged 602 is sealed, and the articles can be put in for further weighing.
At least one of the upper sealing members 321 is provided with a heating device so that the packaging material 6 is heated and melted when the two upper sealing members 321 are bonded, thereby sealing. Similarly, at least one lower sealing member 322 is provided with a heating device. The heating device is an electric heating device, the heating device is electrically connected with the control unit 7, and the control unit 7 controls the heating device to be turned on or turned off.
Preferably, elastic elements 324 are provided between the upper closure member 321 and the clamping arms 32 and between the lower closure member 322 and the clamping arms 32, the elastic elements 324 holding the upper closure member 321 and the lower closure member 322 in front of the shears 323, so that when the two clamping arms 32 approach each other, the two upper closure members 321 and the two lower closure members 322 interact first, and when the two clamping arms 32 continue to approach each other, the elastic elements 324 are compressed, and then the two shears 323 interact. That is, when the two clamp arms 32 approach each other, the upper and lower seals are formed on the packaging material 6, and then the packaging material 6 is cut off, so that the situation that the seal is not completed and the packaging material 6 is cut off is avoided.
The seal cutter unit 3 further includes a vertical driving device 34, a contact sensor 35, and a seal cutter communication module 36. The clamp bracket 31 is vertically movably mounted on the bracket 21; the vertical driving device 34 is used for driving the clamping bracket 31 to vertically move along the bracket 21, and the vertical driving device 34 is a motor; the contact sensors 35 are provided on the lower surfaces of the two clamp arms 32. The horizontal driving device 33 and the vertical driving device 34 are in signal connection with the control unit 7, and the control unit 7 is adapted to control the opening and closing of the horizontal driving device 33 and the vertical driving device 34. The seal shearing communication module 36 is used for sending the information detected by the contact sensor 35 to the control unit 7.
When the consumer determines that the articles are not added into the packaging material 6 any more, the consumer sends a packaging starting command to the control unit 7, the control unit 7 firstly starts the horizontal driving unit 33 to enable the two clamping arms 32 to approach each other, and when the distance between the two clamping arms 32 reaches a preset value, the horizontal movement of the clamping arms 32 is stopped, at the moment, the sealing pieces are not jointed, but the packaging material is basically folded; then the control unit 7 activates the vertical driving unit 34 to move the clamping bracket 31 and the two clamping arms 32 downward, and when the lower ends of the clamping arms 32 are pressed against the articles in the packaging material 6, the contact sensor 35 sends a signal to the control unit 7; after receiving the signal of the contact sensor 35, the control unit 7 turns off the vertical driving unit 34, and stops the downward movement of the clamping bracket 31; then, the control unit 7 starts the horizontal driving unit 33 again, and at the same time, the heating devices of the upper sealing member 321 and the lower sealing member 322 are opened by the control unit 7, the gathered packaging material 6 is firstly formed into two upper and lower seals, and then is cut, the article containing portion 601 is dropped on the tray 12, and the weight sensor 121 on the tray 12 transmits the detected weight information of the article to the control unit 7.
The intelligent identification unit 4 comprises a camera module 41, an identification module 42, a data storage module 43 and an identification communication module 44. The camera module 41 is arranged on the bracket 21 and above the packaging material mounting unit 2, so that the camera range of the camera module 41 covers the article inlet formed by the sleeve 23, and when an article is put into the packaging material 6 from above the sleeve 23, the camera module 41 acquires an image; the identification module 42 is used for identifying the type of the article put in the packaging material 6, and the specific method is as follows: identifying the characteristics of the article from the image acquired by the camera module 41, and comparing the characteristics of the article with the characteristics of the article stored in the data storage module 43 to determine the type of the article in the image; the data storage module 43 stores the identification features of different types of articles and the unit prices of different types of articles, and it should be noted that the data storage module 43 may be networked, and the data in the data storage module 43 may be updated in real time through the internet, and the data storage module 43 may also be an online database; the identification communication module 44 transmits the kind of the article identified by the identification module 42 and the unit price of the article in the data storage module 43 to the control unit 7.
Preferably, the intelligent recognition unit 4 further comprises a motion sensor 45 installed below the camera module 41, the motion sensor 45 is in signal connection with the camera module 41, when the motion sensor 45 detects that an article is put into the packaging material from above the sleeve 23, the camera module 41 is controlled to acquire an image, that is, each time a consumer places an article into the packaging material 6, the camera module 41 acquires a picture and is recognized by the recognition module 42, and when the recognition module 42 recognizes that the unit prices of the articles are different twice, the control unit 7 sends out a warning to prompt that the articles with different unit prices are put into the packaging material 6. When the control unit 7 issues a warning, the consumer cannot perform the subsequent operation, thereby avoiding placing items of different prices in the packaging material 6. At this time, the consumer needs to take out the article and re-weigh it.
The identification method of the invention is briefly described below by taking apples as an example: according to the color and size of the apple, the apple is divided into several types with different prices, firstly, the average color information, the average size information, the average shape information, the unit price information and the like of the apples with different types are obtained, and then the obtained information is input into the data storage module 43; the identification unit 42 identifies the article from the image acquired by the camera unit 41, calculates information such as color, size, shape and the like of the article, compares the obtained color, size and shape with the data in the data storage module 43, and marks the article as the apple type with the highest matching degree within an allowable error range; the marked apple variety and the single piece of the apple variety are transmitted to the control unit 7 by means of the identification communication module 44.
It should be noted that the recognition module 42 can also perform recognition in other ways, such as many existing technologies in the field of machine vision, and the present invention is not described in detail.
The label unit 5 comprises a label printing unit 51 and a label communication unit 52, the label communication unit 52 is in communication with the control unit 7, the control unit 7 is adapted to send the calculated total price information of the article and the identified type information of the article to the label printing unit 51 through the label communication unit 52, and the label printing unit 51 prints the total price and the type of the article on a label with an identification code.
In some embodiments, the label printing unit 51 is manually stuck to the outside of the food containing part 601 by a human. In other embodiments, the label unit 5 further includes a manipulator provided at one side of the tray 12, and the printed label is attached to the outside of the food containing part 601 by the manipulator after the label printing of the label printing unit 51 is completed.
The control unit 7 includes an operation panel 71, a display panel 72, a central processor 73, and a central communication module 74. The central communication module 74 sends the received weight information obtained by the weighing unit 1, the type information of the article identified by the intelligent identification unit 4 and the unit price information of the article to the central processor 73, the central processor 73 calculates the total price of the article, and then the central communication module 74 sends the total price information and the type information of the article to the label unit 5.
The operation panel 71 is in signal connection with the central processor 73, and the consumer is adapted to issue a command to start packaging to the central processor 73 through the operation panel 71. The central processing unit 73 is in signal connection with the horizontal driving device 33, the vertical driving device 34 and the heating device of the sealing and shearing unit 3, and after the central processing unit 73 receives a packaging starting instruction, the horizontal driving device 33 is started to enable the two clamping arms 32 to approach to each other to gather the upper part of the packaging material 6, and at the moment, the two clamping arms 32 are not attached to each other; then, the vertical driving device 34 is opened to move the two clamping arms 34 downwards along the packaging material 6, so that the excessive packaging material 6 moves to the upper part of the two clamping arms 32, when the contact sensor 35 detects that the clamping arms 32 are pressed against the articles in the packaging material 6, the central processor 73 closes the vertical driving device 34, then the horizontal driving device 33 is opened again to enable the two clamping arms 32 to continuously approach, meanwhile, the heating devices of the upper sealing piece 321 and the lower sealing piece 322 are controlled to be opened, the upper sealing part 301 and the lower sealing part 302 form two seals 61 and 62 at the gathered packaging material 6, and the cutting part 303 cuts the packaging material 6 between the two seals.
It is worth mentioning that after the packaging material 6 is cut, the weight information is sent to the control unit 7 when the weight value detected by the weight sensor 121 on the tray 12 does not change any more within a certain time.
The display panel 72 is used for displaying information such as the type, unit price, weight and the like of the identified article, and when the unit prices of the articles identified by the identification module 42 twice before and after are different, a warning is given through the display panel 72.
The invention also provides a self-service weighing method, which comprises the following steps:
s1, folding and arranging a cylindrical packaging material 6 above a weighing unit 1;
s2, placing the articles to be weighed into the packaging material 6 with the lower end sealed from the inlet of the packaging material 6, wherein the packaging material 6 is gradually elongated along with the increase of the articles to be weighed;
s3, when an article to be weighed is placed in the packaging material 6, obtaining an image of the article in the packaging material 6, then identifying the type of the article in the image, and calling unit prices of the articles of corresponding types from a database;
s4, a control unit 7 receives a packaging starting command, controls a seal shearing unit 3 to furl the upper end of the elongated packaging material 6, forms an upper seal and a lower seal at the furling position, and then shears the packaging material from the middle parts of the two seals to enable the part containing the articles to fall on the weighing unit 1;
s5, calculating the total price of the article according to the weight of the article measured by the weighing unit 1 and the unit price of the article called in the step S3;
s6, printing the price and/or the identification code of the article on a label.
Further, step S3 specifically includes the following steps:
s31, each time when an article is placed in the packaging material, acquiring an image of the article in the packaging material 6, then identifying the type of the article in the image, and calling the unit price of the article from a database;
s32, comparing whether the unit prices of the articles in the images obtained before and after twice are the same,
if so, the subsequent steps are normally carried out,
if not, a prompt is sent, and the subsequent steps can not be continued.
Further, step S4 specifically includes the following steps:
s41, when determining that the articles are not added any more, enabling the two clamping arms 32 arranged on the two sides of the packaging material to be close to each other so as to gather the packaging material;
s42, moving the two clamping arms 32 downwards to enable the lower ends of the clamping arms 32 to be abutted against the articles in the packaging material 6;
s43, continuously enabling the two clamping arms 32 to approach, and forming an upper seal and a lower seal on the packaging material between the two clamping arms 32 by a hot melting method;
s44, cutting off the packaging material from the middle parts of the two seals to enable the part containing the articles to fall on the weighing unit.
Preferably, in step S41, a packing start command is initiated by the user, and after the packing start command is issued, a horizontal driving unit 33 drives the two clamp arms 32 on both sides of the packing material to approach each other to gather the packing material.
Preferably, step S6 is followed by the step of: and (3) sticking the label printed with the price and/or the identification code on the packed article on the weighing unit through a mechanical arm.
Preferably, step S5 specifically includes the steps of:
s51, after the weighing unit 1 detects that the weight does not change any more within a certain time, taking the weight at the moment as the weight of the article on the weighing unit;
s52, calculating the total price of the articles according to the weight of the articles obtained in the step S51 and the unit price of the articles called in the step S3.
In the following, the working process of the present invention is further described by taking the case that both ends of the packaging material 6 are not sealed in the initial state as an example in combination with a specific use scenario:
firstly, a worker sleeves the sleeve 23 with the packaging material 6, then clamps the sleeve 23 sleeved with the packaging material 6 on the support ring 22, pulls out the lower end of the packaging material 6 from a material outlet 291 formed between the lower clamping platform 233 of the sleeve and the clamping platform 222 of the support ring, and ensures that the lower end of the packaging material 6 is positioned below the two clamping arms 32;
a sealing command is sent to the central processing unit 73 through the operation panel 71, at this time, the central processing unit 73 starts the horizontal driving device 33, the two clamping arms 32 approach each other until the two clamping arms are attached to each other, so that the lower end of the packaging material 6 is sealed, and a small amount of the packaging material is cut off; it should be noted that, when the central processing unit 73 receives the sealing command, only the horizontal driving device 33 is started, and the vertical driving device 34 is not started;
after the sealing and cutting unit 3 finishes sealing the packaging material 6, the control unit 7 starts the horizontal driving device 33 again to move the two clamping arms 32 back to the initial positions;
after the preparation work is finished, normal weighing operation can be carried out, a user puts needed fruits into the packaging material 6 from the upper part of the sleeve 23, the types and unit prices of the identified objects are displayed on the display panel 72 through identification of the intelligent identification unit 4, then the user continuously puts the fruits into the packaging material 6, the packaging material containing the fruits is supported by the tray 12, the tray 12 gradually moves downwards along with increase of the number of the fruits, and meanwhile the packaging material 6 is continuously pulled out of the accommodating cavity 20; since the intelligent identification unit 4 identifies that the unit prices of the articles put in the two times are the same, no alarm is given, so that the putting of the articles of different types into the packaging material 6 is allowable as long as the unit prices of the two articles are the same;
when the user determines that the articles are not added any more, the user presses the button on the operation panel 71 to start packing, the control unit 7 starts to activate the horizontal driving device 33 to make the two clamping arms 32 approach each other, when the distance between the two clamping arms 32 reaches a preset value, the horizontal driving device 33 is closed, the two clamping arms 32 do not interact with each other, and considering that the packaging material may not be full, the control unit 7 further activates the horizontal driving device 33 to move the two clamping arms 32 downwards by the vertical driving device 34 until the two clamping arms 32 are acted by the articles in the packaging material, the two clamping arms 32 do not move downwards any more, and the packaging material is not wasted basically, then the control unit 7 activates the horizontal driving device 33 again to make the two clamping arms 32 approach each other, so that the upper sealing part 310 and the lower sealing part 302 form two upper and lower sealing parts at the position where the packaging material is gathered, and then the shearing part 303 moves the upper sealing part and the, The packaging material between the next two seals is cut off, the article containing part 601 is completely dropped on the tray 12, and the cutting is completed or the control unit 7 moves the two clamping arms 32 to the initial position through the horizontal driving device 22 and the vertical driving device 34;
after the article containing part 601 is dropped on the tray 12, the weight sensor on the tray 12 checks the weight of the article, when the weight does not change any more within a certain time (for example, within 3 seconds), the detected weight is sent to the control unit 7, the control unit 7 determines the total price of the article according to the weight of the article and the unit price of the article identified by the intelligent identification unit 4, and then the price label is printed out through the label unit;
the consumer or the manipulator attaches the price label to the outside of the article containing part 601, and self-service weighing is completed.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (9)
1. A self-service weighing device, comprising:
the weighing unit comprises a base, a tray, a guide rail, an elastic supporting element and a weighing communication module, wherein the guide rail is vertically arranged on the base, the tray is movably arranged on the guide rail, so that the tray is suitable for moving up and down along the vertical direction, the elastic supporting element is used for supporting the tray, and the upper surface of the tray is provided with a weight sensor for detecting the weight of an article placed on the tray;
the packaging material mounting unit is arranged above the weighing unit and is provided with an annular containing cavity, cylindrical packaging materials are suitable for being arranged in the containing cavity in a folding mode, an annular material outlet is further formed in the lower end of the packaging material mounting unit and is communicated with the containing cavity, and one end of the packaging materials is suitable for being pulled out of the containing cavity through the material outlet;
the sealing and shearing unit is used for sealing and shearing the packaging material pulled out of the containing cavity;
the intelligent identification unit is arranged above the packaging material installation unit and is suitable for identifying the articles put into the packaging material so as to judge the types and unit prices of the articles put into the packaging material;
the control unit is connected with the weighing unit, the sealing and shearing unit and the intelligent identification unit in a communication mode, the control unit is used for controlling the sealing and shearing unit to perform sealing and shearing operations, the weighing communication module is used for sending weight information detected by the weight sensor to the control unit, and the control unit calculates the total price of a weighed article according to the weight information obtained by the weighing unit and unit price information obtained by the intelligent identification unit; and
and the label unit is connected with the control unit in a communication mode and is used for printing the total price of the weighed object and/or the identification code containing the price of the object on a label.
2. The self-service weighing apparatus of claim 1, wherein the seal shearing unit comprises two clamping arms openably and closably provided at both sides below the packaging material mounting unit, when the two clamping arms are opened, the packaging material pulled out from the material outlet can be spread, when the two clamping arms are folded, the upper end of the packaging material pulled out from the material outlet is folded, the two clamping arms are provided with an upper sealing part, a lower sealing part and a shearing part arranged between the upper sealing part and the lower sealing part, when the two clamping arms are folded, the upper sealing part and the lower sealing part are suitable for forming an upper seal and a lower seal on the folded packaging material, the shearing part is suitable for shearing the packaging material between the two seals, so that the packaging material below and the articles inside the packaging material fall onto the weighing unit.
3. The self-service weighing device of claim 2, wherein each clamping arm inwards extends upwards to the opposite direction to form an upper sealing part, a lower sealing part and a shearing part, the shearing part is positioned between the upper sealing part and the lower sealing part, so that the two clamping arms form the upper sealing part and the lower sealing part, the two clamping arms form the lower sealing part and the shearing part, at least one heating device is arranged on the upper sealing part and at least one heating device is arranged on the lower sealing part, so that when the upper sealing part or the two lower sealing parts are attached, the packaging material is heated and melted, and sealing is completed.
4. The self-service weighing device of claim 3, wherein elastic elements are arranged between the upper sealing member and the clamping arms and between the lower sealing member and the clamping arms, and the elastic elements keep the upper sealing member and the lower sealing member in front of the shearing member, so that when the two clamping arms approach each other, the two upper sealing member and the two lower sealing member interact first, and when the two clamping arms continue to approach each other, the two shearing members interact.
5. The self-service weighing apparatus according to claim 2, wherein the seal shearing unit further comprises a clamping bracket, a horizontal driving device, a vertical driving unit and a contact sensor, the clamping bracket is vertically movably arranged between the packaging material mounting unit and the weighing unit, the vertical driving unit is used for driving the clamping bracket to move, the two clamping arms are horizontally movably arranged on the clamping bracket, the horizontal driving device is used for driving the clamping arms to move, so that the two clamping arms can approach or separate from each other, the clamping bracket drives the two clamping arms to vertically move when vertically moving, the contact sensor is arranged at the lower ends of the two clamping arms, and when the clamping arms vertically move along with the clamping bracket to the lower ends of the clamping arms to abut against the articles in the packaging material, the contact sensor sends out information, stopping the downward movement of the clamp bracket, the control unit being communicably connected with the horizontal driving means, the vertical driving means, and the contact sensor, thereby controlling the displacement of the clamp arm.
6. The self-service weighing apparatus of claim 1, wherein the packaging material mounting unit comprises a bracket, a support ring suspended above the weighing unit by the bracket, the support ring comprising a cylindrical support ring side wall and a support ring catch extending circumferentially inwardly from a lower end of the support ring side wall, and a sleeve comprising a cylindrical sleeve side wall, an upper sleeve catch extending circumferentially outwardly from an upper end of the sleeve side wall and a lower sleeve catch extending circumferentially outwardly from a lower end of the sleeve side wall, the upper sleeve catch being of a length greater than the lower sleeve catch, the sleeve side wall being disposed inwardly of the support ring side wall, the upper sleeve catch being engaged at an upper end of the support ring side wall to retain the sleeve on the support ring, the sleeve side wall and the support ring side wall forming the receiving cavity therebetween for receiving packaging material, the sleeve lower clamping table and the support ring clamping table are spaced, so that the material outlet is formed.
7. The self-service weighing device of claim 1, wherein the intelligent identification unit comprises a camera module, an identification module, a data storage module and an identification communication module, the camera module is arranged above the packaging material installation unit, so that the camera range of the camera module covers the entrance of the packaging material, when an article is put into the packaging material from the entrance, the camera module acquires an image, the identification module is used for identifying the type of the article put into the packaging material, unit prices of different types of articles are stored in the data storage module, and the identification communication module sends the type of the article identified by the identification module and the unit price of the type of the article in the data storage module to the control unit.
8. The self-service weighing device of claim 7, wherein the intelligent identification unit further comprises a motion sensor mounted below the camera module, the motion sensor is in signal connection with the camera module, and when the motion sensor detects that an article is placed in the packaging material, the camera module is controlled to acquire an image.
9. The self-service weighing apparatus of claim 1, wherein the labeling unit further comprises a manipulator disposed on one side of the weighing unit, wherein the label is applied to the outside of the packaged packaging material by the manipulator after printing of the label is completed.
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| CN201810423332.9A CN108639412B (en) | 2018-05-06 | 2018-05-06 | Self-service weighing device |
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| CN201810423332.9A CN108639412B (en) | 2018-05-06 | 2018-05-06 | Self-service weighing device |
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| CN109229440A (en) * | 2018-11-07 | 2019-01-18 | 长兴九鑫环保科技有限公司 | A kind of discarded chemical fibre recyclable device |
| CN111907830A (en) * | 2020-07-25 | 2020-11-10 | 郑州太德网络科技有限公司 | Automatic sealing and marking system for scattered articles |
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Effective date of registration: 20201028 Address after: 221000 Yitang Town Industrial Park, Pizhou City, Xuzhou City, Jiangsu Province Applicant after: Xuzhou Shuangchi Fire Equipment Co.,Ltd. Address before: 315728 No. 75, No. 2, mountain stove 2, Zhong Ni village, Ding Tang Town, Xiangshan County, Ningbo, Zhejiang Applicant before: Lin Xixia |
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