Mistake-proof weighing device for manual batching, internal mixing equipment and processing method

Abstract

The invention discloses a mistake-proof weighing device for manual batching, internal mixing equipment and a processing method, the mistake-proof weighing device for manual batching comprises a batching assembly, the batching assembly comprises a weighing table for detecting the weight of powder in real time, and the real-time weight of the powder corresponds to the variety of the powder; the sealing assembly forms a mechanism for controlling the powder to enter and exit from the batching assembly; and the control assembly controls the sealing assembly according to the powder variety of the batching assembly and the corresponding real-time weight. According to the invention, the batching assembly is arranged to associate the weight and the variety of the powder into a whole to form a first-layer mistake-proof measure, so that an operator does not mix the weights required by the two varieties of powder in the batching process to cause that the performance of the produced sizing material cannot meet the requirement; the control assembly is arranged to control the sealing assembly to control the discharging port of the batching assembly, an operator is limited to weigh the powder variety, a second-layer mistake-proof measure is formed, and the multi-layer mistake-proof measure can reduce errors in manual batching, improve the batching precision and guarantee the performance of rubber and tires.

Description

Technical Field

[0001] The invention relates to the technical field of tire production, and in particular to an error-proof weighing device, mixing equipment and a processing method for artificial batching. Background Art

[0002] Internal mixer is a machine with a pair of specially shaped rotors that rotate relative to each other, which plasticizes and mixes polymer materials intermittently in a closed state with adjustable temperature and pressure. The process is to select different rubber compound formulas according to the needs of different parts of the tire for batching, put the ingredients into the internal mixer to start mixing, quickly cool and cut the rubber compound after mixing, and check the quality of the finished rubber compound. The batching process is mostly manual batching, and the main process is to weigh different types of powders according to the tire rubber compound formula and mix them into the required ingredients to meet the needs of flexible adjustment of the ingredients.

[0003] However, the inventors of the present application have discovered in the implementation of the existing manual batching process that when the formula of the required rubber compound involves a large number of powder varieties, the operator is prone to confuse the weighing grams with the powder varieties, that is, the weights of different varieties of powder cannot correspond one-to-one to the weights in the formula, and thus cannot meet the precise proportion requirements for the weights of different powders in the formula, which in turn affects the raw materials of the rubber compound and further affects the performance of the rubber compound. Summary of the invention

[0004] In order to solve the problem that different types of powders and weighing grams are easily confused in artificial batching, the present invention provides an error-proof weighing device, a mixing device and a processing method for artificial batching. The specific technical scheme is as follows:

[0005] A mistake-proof weighing device for manual batching is used to weigh different types of powders. The mistake-proof weighing device comprises: a batching component, which comprises a weighing platform for real-time detection of the weight of the powder, and the real-time weight of the powder corresponds to its own type one by one; a closing component, which forms a mechanism for controlling the powder to enter and exit the batching component; and a control component, which can control the closing component according to the powder type of the batching component and the corresponding real-time weight.

[0006] Furthermore, the batching component also includes: a material barrel arranged on the weighing platform, which can hold different types of powders; an identification reader / writer arranged on the table top of the weighing platform and an identification label arranged on the bottom of the material barrel, and the identification reader / writer can identify the type information of the powder contained in the material barrel through the identification label; the control component includes an electronic inspection cabinet, which can store the required formula, and the electronic inspection cabinet can associate the type of powder in the material barrel with the real-time weight.

[0007] Preferably, the batching assembly further comprises: a rotating pedestal for carrying a weighing platform, a plurality of weighing platforms are arranged on the top surface of the rotating pedestal, the weighing platforms correspond to the material barrels one by one, and the rotating pedestal can change the positions of the weighing platforms and the material barrels at the same time.

[0008] Preferably, the closing assembly comprises: a rotating cylinder arranged on a rotating pedestal, the axis of which is parallel to the axis of the barrel; a swing arm connected to the moving end of the rotating cylinder; and a barrel cover connected to the swing arm, the axis of which can coincide with the axis of the barrel, the projection of which along the axial direction can cover the open end of the barrel, and the bottom surface of which can coincide with the barrel mouth plane of the barrel.

[0009] Preferably, the control component also includes: a display screen for displaying the type of powder contained in the barrel and the real-time weight of the corresponding type, the display screen being capable of selecting the required formula of the rubber material and selecting whether to perform batching; and a safety mat electrically connected to the display screen, the safety mat being capable of detecting whether the manual batching operator is in the correct position for batching.

[0010] Preferably, the identification reader / writer and the identification tag adopt radio frequency identification technology.

[0011] A mixing device comprises an error-proof weighing device.

[0012] Processing methods, including:

[0013] S1: Identify and compare the identification tags according to the formula identification reader of the electronic inspection cabinet to determine the position change sequence of different types of barrels and the opening and closing sequence of different types of barrel covers;

[0014] S2: The operator is on the safety mat and takes the powder of the corresponding weight and type according to the formula;

[0015] S3: Generate formula production log and weighing report.

[0016] Preferably, in S1, the identification labels of the barrels containing different types of powders are different. When the identification reader recognizes and compares the identification labels and finds a comparison error, the display screen can remind the operator to make corrections.

[0017] Preferably, in S2, after the powder of the previous variety is taken, the movable barrel can transport the powder of the next variety to the operator's operating area, and the barrel cover of the previous variety is closed, and the barrel cover of the next variety is opened.

[0018] It can be seen from the above technical solution that the present invention has the following beneficial effects:

[0019] The present invention relates the weight and type of powder as one by setting a batching component, thereby forming a first layer of error prevention measures, so that the operator will not confuse the weights required to be weighed of two types of powder during the batching process, resulting in the performance of the produced rubber failing to meet the requirements; secondly, a control component is set to control the closing component and then control the discharge port of the batching component, thereby limiting the types of powder that the operator can weigh, thereby forming a second layer of error prevention measures. The setting of multiple layers of error prevention measures can reduce errors in manual batching, thereby improving the batching accuracy, and thereby ensuring the performance of the rubber and the tire. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of an embodiment of the error-proof weighing device of the present invention;

[0021] Figure 2 for Figure 1 Bottom view;

[0022] Figure 3 The figure is a flow chart of the processing method of the internal mixing equipment.

[0023] In the figure: 1. batching component; 11. rotating platform; 12. weighing platform; 13. material barrel; 14. identification tag; 15. identification reader; 2. closing component; 21. rotating cylinder; 22. swing arm; 23. barrel cover; 3. control component; 31. electronic inspection cabinet; 32. display screen; 33. safety mat. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] Embodiment 1

[0027] like Figure 1As shown, the main function of the first embodiment is to weigh different types of powders. The first embodiment includes: a batching component 1, which includes a weighing table 12 for real-time detection of the weight of the powder, and the real-time weight of the powder corresponds to its own type; a closing component 2, which forms a mechanism for controlling the powder to enter and exit the batching component 1; and a control component 3, which can control the closing component 2 according to the powder type of the batching component 1 and the corresponding real-time weight.

[0028] Specifically, different types of powders are placed on weighing tables 12 at different positions. Each weighing table 12 can detect the type of powder placed thereon in real time, so that the batching component 1 can associate the type of powder and the corresponding weight into one, thereby preventing the operator from confusing the type of powder and weighing the wrong weight of the required type of powder, which affects the performance of the produced rubber.

[0029] Secondly, the closing component 2 is installed at the feed port and the discharge port of the batching component 1. When the operator weighs the required variety of powder, the closing component 2 opens the discharge port of the batching component 1 for the corresponding required variety of powder, and closes the discharge ports of other varieties of powder. When the batching component 1 detects that the weight change is the same as the weight required by the rubber formula, that is, the operator has completed the weighing, the closing component 2 closes the discharge port of the batching component 1 for the corresponding required variety of powder, thereby preventing the operator from weighing the wrong weight during the weighing process and confusing the variety of powder with the required weight, thereby reducing erroneous operations in manual batching. Similarly, when the corresponding required variety of powder is contained in the supplementary batching component 1, the closing component 2 can control its feed port, thereby preventing the operator from mistakenly mixing different varieties of powder, causing powder contamination and waste of raw materials. Even the operator does not find the erroneous operation during the feeding process, which will cause errors in subsequent manual batching.

[0030] Secondly, the batching component 1 can send the associated powder types and real-time weights to the control component 3. The control component 3 controls the closing component 2 and then controls the opening and closing of the discharge port of the batching component 1 according to the corresponding weights of different types of powder in the rubber formula, thereby ensuring that the operator can only weigh the required types of powder during the batching process, and can only weigh the required weight of the corresponding types of powder, forming the first structure to prevent manual batching errors, avoiding confusion between powder types and weighing weights during manual batching, improving the accuracy of manual batching, and thus ensuring the performance of the output rubber.

[0031] Secondly, during the operator's batching process, the control component 3 always detects the weight change of the required type of powder in the rubber formula. When its weight changes, it means that the operator has weighed the correct type of powder. When its weight does not change, it means that the operator has not weighed the required type of powder correctly. The control component 3 issues an alarm to remind the operator to batch correctly, thereby forming a second structure to prevent manual batching errors and improve the accuracy of manual batching.

[0032] Furthermore, the batching component 1 also includes: a material barrel 13 arranged on a weighing platform 12, and the material barrel 13 can contain different types of powders; an identification reader / writer 15 arranged on the table top of the weighing platform 12 and an identification label 14 arranged on the bottom surface of the material barrel 13, and the identification reader / writer 15 can identify the type information of the powder contained in the material barrel 13 through the identification label 14; the control component 3 includes an electronic inspection cabinet 31, and the electronic inspection cabinet 31 can store the required formula, and the electronic inspection cabinet 31 can associate the type of powder in the material barrel 13 with the real-time weight.

[0033] Specifically, the batching component 1 in the first embodiment includes four weighing platforms 12, and a single weighing platform 12 is placed on a single material barrel 13, wherein the table surface of the weighing platform 12 in contact with the bottom surface of the material barrel 13 is installed with an identification reader 15, and the bottom surface of the material barrel 13 is installed with an identification label 14, and the identification label 14 stores the type of powder contained in the material barrel 13, and can be stored multiple times, so that the material barrel 13 can represent different types of powder through the identification label 14, and then the identification reader 15 determines the type of powder contained in the material barrel 13 by reading the information stored in the identification label 14, so that the material barrel 13 containing different types of powder can be placed on the corresponding weighing platform 12, thereby realizing a one-to-one correspondence between the weighing platform 12 and the material barrel 13, so that the weight of the different types of material barrels 13 corresponds to the type of powder contained in the material barrel 13.

[0034] Secondly, the electronic inspection cabinet 31 is an intelligent storage solution of radio frequency identification technology, which is mainly used for efficient and accurate management of the identification tag 14, and real-time recording of the weight of the barrel 13 corresponding to the identification tag 14 and the time of weight change, so that it can associate the weight of the barrel 13 on different weighing platforms 12 with the type of powder contained, and then control the closing component 2 to open and close the discharge port of the batching component 1, so that during the manual batching process, the electronic inspection cabinet 31 can control the closing component 2 according to the required formula of the rubber material, so that the operator can weigh the correct weight of powder of different types, reducing the possibility of making mistakes.

[0035] Combination Figure 2As shown, the batching assembly 1 also includes: a rotating base 11 for carrying a weighing platform 12, and a plurality of weighing platforms 12 are arranged on the top surface of the rotating base 11. The weighing platforms 12 correspond to the material barrels 13 one by one, and the rotating base 11 can change the positions of the weighing platforms 12 and the material barrels 13 at the same time.

[0036] Specifically, in the first embodiment, four weighing platforms 12 are evenly distributed on the top surface of the rotating platform 11, and an identification reader 15 is installed on the top surface of each weighing platform 12. An identification label 14 is installed on the bottom surface of each material barrel 13 placed thereon. Each material barrel 13 is placed on an exclusive weighing platform 12. The top surface of the rotating platform 11 is divided into four areas for placing different weighing platforms 12, so that they correspond one-to-one with the identification labels 14, so that each area of ​​the rotating platform 11 is respectively placed with a material barrel 13 of an exclusive variety; wherein a motor, a rotating shaft and four universal wheels are installed at the bottom center of the rotating platform 11, and the bottom of the rotating shaft is in contact with the ground. The motor drives the rotating shaft to rotate and then drives the four universal wheels to roll, thereby rotating the rotating platform 11, so that the positions of the four areas relative to the operator are changed, so that during the operator's batching process, the rotating platform 11 can move the required material barrel 13 to the operator's side, thereby preventing the operator from finding the wrong material barrel 13 and weighing the wrong type of powder.

[0037] like Figure 1 As shown, the closing assembly 2 includes: a rotating cylinder 21 disposed on a rotating pedestal 11, the axis of the rotating cylinder 21 being parallel to the axis of the barrel 13; a swing arm 22 connected to the moving end of the rotating cylinder 21; and a barrel cover 23 connected to the swing arm 22, the axis of the barrel cover 23 being able to coincide with the axis of the barrel 13, the axial projection of the barrel cover 23 being able to cover the open end of the barrel 13, and the bottom surface of the barrel cover 23 being able to coincide with the barrel mouth plane of the barrel 13.

[0038] Specifically, the bottoms of the four rotating cylinders 21 are respectively installed in four areas of the rotating pedestal 11, and the moving end of the rotating cylinder 21 can adjust the height and rotation angle of the swing arm 22 and the barrel cover 23 connected thereto, so that the position of the barrel cover 23 relative to the barrel 13 can be adjusted; wherein, one end of the swing arm 22 is fixedly connected to the rotating cylinder 21 by a fixing block or a bolt, and the length direction of the swing arm 22 is perpendicular to the axis of the rotating cylinder 21, so that the rotating surface of the swing arm 22 during the rotation process is always perpendicular to the axis of the rotating cylinder 21, and because its axis is parallel to the axis of the barrel 13, the rotating surface of the swing arm 22 is parallel to the axis of the barrel 13. 3 axis is perpendicular; secondly, the middle area of ​​the barrel cover 23 is connected to one end of the swing arm 22 by bolts, and the bottom surface of the barrel cover 23 is parallel to the length direction of the swing arm 22, so that the bottom surface of the barrel cover 23 is perpendicular to the axis of the barrel 13, and so that the bottom surface of the barrel cover 23 is parallel to the barrel mouth plane of the barrel 13. When the rotating cylinder 21 drives the bottom surface of the barrel cover 23 to move up and down, the barrel cover 23 can completely close the barrel mouth of the barrel 13. Because the powder can only enter and exit from the barrel mouth of the barrel 13, the barrel cover 23 can control the powder to enter and exit the barrel 13, and so the barrel covers 23 in different areas can respectively control the barrels 13 containing different types of powder.

[0039] Furthermore, the control component 3 also includes: a display screen 32 for displaying the type of powder contained in the barrel 13 and the real-time weight of the corresponding type, and the display screen 32 can select the required formula of the rubber material and select whether to perform batching; and a safety mat 33 electrically connected to the display screen 32, and the safety mat 33 can detect whether the manual batching operator is in the correct position for batching.

[0040] Specifically, the operator sends the current mode as a weighing mode of a certain formula to the electronic inspection cabinet 31 through the display screen 32, different weighing platforms 12 are placed in different areas of the rotating platform 11, and different weighing platforms 12 are placed with barrels 13 containing different types of powders. The electronic inspection cabinet 31 reads and compares the identification label 14 through the identification reader 15 and displays the reading and comparison results through the display screen 32. The display screen 32 also displays the preparation formula of the required rubber material, and the operator performs manual mixing according to the instructions of the display screen 32.

[0041] Secondly, the safety foot pad 33 is installed on the bottom surface, which is close to a certain position of the rotating platform 11, and the position is defined as the correct position for manual batching. The safety foot pad 33 is installed with a weight sensor or an induction switch, which determines whether the operator is in the correct position for manual batching through the detected signal, and transmits the signal to the electronic inspection cabinet 31 and the display screen 32, so that the electronic inspection cabinet 31 can determine whether the operator is ready for manual batching according to the signal, and then control the closing component 2 and the rotating platform 11. When the operator is not in the correct position during the batching process, the four barrel covers 23 simultaneously close the four material barrels 13 to ensure the accuracy and safety of the batching process.

[0042] Furthermore, the identification reader / writer 15 and the identification tag 14 adopt radio frequency identification technology.

[0043] Specifically, radio frequency identification is a technology that uses radio waves for contactless automatic identification and data exchange. It can use radio frequency signals and spatial coupling and transmission characteristics to identify and track stationary or moving objects. It includes an identification reader 15, an identification tag 14 and an antenna. The identification tag 14 contains a chip and an antenna for storing and transmitting information. The identification reader 15 is used to communicate with the identification tag 14 and process the received data.

[0044] The working principle of the identification tag 14 and the identification reader / writer 15 in the first embodiment is as follows: when the identification tag 14 enters the effective identification range of the identification reader / writer 15, the identification reader / writer 15 will send a radio frequency signal to activate the circuit in the identification tag 14, so that the identification tag 14 can return the unique identifier and powder type stored in its chip to the identification reader / writer 15 through radio waves. After receiving the information, the identification reader / writer 15 decodes it and transmits it to the electronic inspection cabinet 31 for identification and comparison, and reads the powder type contained in the barrel 13.

[0045] Embodiment 2

[0046] The second embodiment of the present invention is an internal mixing device installed with the first embodiment. The operator weighs the correct type of powder and the correct weight through the first embodiment to make the mixed powder required by the formula. The internal mixing device includes an internal mixer. The operator puts the mixed powder into the internal mixer to make the rubber compound, so that the working performance of the rubber compound is the same as the working performance specified in the formula, thereby ensuring that the performance of the tire made of the rubber compound meets the requirements.

[0047] Embodiment 3

[0048] like Figure 3 As shown, the specific steps of processing the rubber material using Example 2 are as follows:

[0049] S1: Identify and compare the identification tag 14 according to the recipe identification reader / writer 15 of the electronic inspection cabinet 31, and determine the position change sequence of different types of barrels 13 and the opening and closing sequence of different types of barrel covers 23;

[0050] Specifically, the operator selects the required formula through the display screen 32, and the display screen 32 sends the formula selection to the electronic inspection cabinet 31. The electronic inspection cabinet 31 calls out the corresponding formula and determines the operator's operation sequence and weighing process according to the formula; the operator writes the type of powder contained in the barrel 13 into the identification label 14 at the bottom, and puts it into the weighing platform 12. The identification reader 15 reads the identification label 14 and transmits the information to the electronic inspection cabinet 31. The electronic inspection cabinet 31 determines that the placed powder type is the powder type required by the formula, and associates the powder type, the weighing platform 12, and the placement position of the weighing platform 12, and determines the rotation order of the rotating platform 11 and the opening and closing order of the barrel cover 23 according to the correct position of the manual batching, so that the operator can weigh the unique and correct type and the corresponding weight at the correct position.

[0051] S2: The operator is at the safety mat 33 and takes the powder of corresponding weight and type according to the recipe;

[0052] Specifically, the safety foot pad 33 is located at the correct position for manual batching (this position is determined according to the position of the on-site equipment and the powder conveying path, and can be changed but the change result needs to be input into the electronic inspection cabinet 31). It transmits the signal that the operator is in the correct position to the electronic inspection cabinet 31, and the electronic inspection cabinet 31 starts to control the rotating base 11 and the barrel cover 23, and the operator starts batching.

[0053] Among them, when the weight of the material barrel 13 corresponding to the powder to be weighed does not change, the weighing platform 12 will transmit a signal to the electronic inspection cabinet 31 and the display screen 32, and the electronic inspection cabinet 31 will close all the barrel covers 23 and sound an alarm, thereby ensuring that the ingredients in the manual batching are correct.

[0054] S3: Generate formula production log and weighing report.

[0055] Specifically, the electronic inspection cabinet 31 can automatically record the rotation position of the rotating platform 11 and the weight change of the barrel 13, realize automatic inventory without human intervention, and can synchronize all the operating information of Example 2 to the background management system, generate production logs and weighing reports, and facilitate subsequent inquiries, audits and data analysis.

[0056] Furthermore, in S1 , the identification labels 14 of the barrels 13 containing different types of powders are different. When the identification reader 15 identifies and compares the identification labels 14 and finds a comparison error, the display screen 32 can remind the operator to make corrections.

[0057] Specifically, the formula selected by the operator is different, and the identification label 14 placed on the weighing platform 12 is different. The identification reader 15 reads the identification label 14 and sends the result to the electronic inspection cabinet 31 for comparison. When the comparison is wrong, that is, the powder variety not required by the formula is placed on the weighing platform 12, the display screen 32 can display the error, thereby reminding the operator to correct the error, thereby preventing ingredient errors.

[0058] Furthermore, in S2, after the powder of the previous variety is taken, the movable barrel 13 can transport the powder of the next variety to the operator's operating area, and the barrel cover 23 of the previous variety is closed, and the barrel cover 23 of the next variety is opened.

[0059] Specifically, when the operator stands in the correct position to mix the ingredients, the rotating platform 11 rotates the required variety of barrels 13 to the corresponding position, and at the same time the corresponding barrel cover 23 opens to allow the operator to weigh, while other barrel covers 23 are closed to prevent the operator from weighing incorrectly. After the operator completes the weighing, the barrel cover 23 is closed, and the rotating platform 11 continues to rotate for the next weighing, and this cycle is repeated until the weighing is completed.

[0060] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0061] The techniques, shapes, and structural parts not described in detail in the present invention are all well-known techniques.

Claims

1. A mistake-proof weighing device for artificial batching, which is used to weigh different types of powders, characterized in that: The error-proof weighing device comprises: A batching component (1), the batching component (1) comprising a weighing platform (12) for real-time detection of the weight of the powder, the real-time weight of the powder corresponding to its own variety; A closing component (2), which forms a mechanism for controlling the powder material to enter and exit the batching component (1); and A control component (3) is capable of controlling the sealing component (2) according to the type of powder material in the batching component (1) and the corresponding real-time weight.

2. The error-proof weighing device according to claim 1, characterized in that: The batching assembly (1) further comprises: a material barrel (13) arranged on the weighing platform (12), wherein the material barrel (13) is capable of containing powder materials of different types; an identification reader / writer (15) disposed on the surface of the weighing platform (12) and an identification label (14) disposed on the bottom surface of the material barrel (13), wherein the identification reader / writer (15) can identify information on the type of powder contained in the material barrel (13) through the identification label (14); The control component (3) comprises an electronic inspection cabinet (31) which can store the required formula and can associate the type of powder in the barrel (13) with the real-time weight.

3. The error-proof weighing device according to claim 2, characterized in that: The batching assembly (1) further comprises: a rotating pedestal (11) for carrying the weighing platform (12); a plurality of weighing platforms (12) are arranged on the top surface of the rotating pedestal (11); the weighing platforms (12) correspond to the material barrels (13) one by one; and the rotating pedestal (11) can change the positions of the weighing platforms (12) and the material barrels (13) at the same time.

4. The error-proof weighing device according to claim 3, characterized in that: The closure assembly (2) comprises: A rotating cylinder (21) disposed on the rotating pedestal (11), wherein the axis of the rotating cylinder (21) is parallel to the axis of the barrel (13); a swing arm (22) connected to the moving end of the rotary cylinder (21); and A barrel cover (23) connected to the swing arm (22) has an axis that can coincide with the axis of the barrel (13), an axial projection of the barrel cover (23) that can cover the open end of the barrel (13), and a bottom surface of the barrel cover (23) that can coincide with a barrel mouth plane of the barrel (13).

5. The error-proof weighing device according to claim 4, characterized in that: The control component (3) further comprises: A display screen (32) for displaying the type of powder contained in the material barrel (13) and the real-time weight of the corresponding type, wherein the display screen (32) can select the required formula of the rubber material and whether to perform batching; and A safety mat (33) electrically connected to the display screen (32) can detect whether the manual batching operator is located at a correct batching position.

6. The error-proof weighing device according to claim 2, characterized in that: The identification reader / writer (15) and the identification tag (14) adopt radio frequency identification technology.

7. A mixing device, characterized in that: The mixing equipment comprises the error-proof weighing device as described in any one of claims 1 to 6.

8. The processing method of the internal mixing equipment according to claim 7, characterized in that: include: S1: Identify and compare the identification tag (14) according to the recipe identification reader (15) of the electronic inspection cabinet (31), and determine the position change sequence of different types of barrels (13) and the opening and closing sequence of different types of barrel covers (23); S2: The operator is on the safety mat (33) and takes the powder of corresponding weight and type according to the recipe; S3: Generate formula production log and weighing report.

9. The processing method according to claim 8, characterized in that: In S1, the identification labels (14) of the material barrels (13) containing different types of powder materials are different. When the identification reader (15) identifies and compares the identification labels (14) and finds a comparison error, the display screen (32) can remind the operator to make corrections.

10. The processing method according to claim 8, characterized in that: In S2, after the powder of the previous variety is taken, the movable barrel (13) can transport the powder of the next variety to the operator's operating area, and the barrel cover (23) of the previous variety is closed, and the barrel cover (23) of the next variety is opened.

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