Automatic weighing system of stirring workshop

Abstract

The invention discloses an automatic weighing system of a stirring workshop, and relates to the technical field of production batching, the automatic weighing system of the stirring workshop comprises an assembly line conveying device, a plurality of stock bins, batching boxes and a weighing device, the assembly line conveying device is used for conveying the batching boxes, and the stock bins are distributed along the conveying path of the assembly line conveying device at intervals; the assembly line conveying device is provided with a plurality of batching stations, the multiple batching stations correspond to the multiple stock bins in a one-to-one mode, and the stock bins are used for conveying raw materials to the batching boxes flowing to the batching stations; the multiple weighing devices are arranged in one-to-one correspondence with the multiple batching stations, and the weighing devices are used for weighing the batching boxes located at the corresponding batching stations. The assembly line conveying device is combined with the batching boxes for feeding, the time interval of discharging of the front and rear batching boxes is far smaller than the time of the feeding stroke of a conveying belt in the prior art, the time interval of discharging is greatly shortened, and the raw material batching efficiency can be improved.

Description

Technical Field

[0001] This application relates to the field of production batching technology, and in particular to an automatic weighing system for a mixing workshop. Background Technology

[0002] In the production of metal blades, various powdered raw materials need to be weighed and mixed according to the formula ratio. Traditional methods rely on manual operation, which is inefficient and prone to errors. Existing automatic weighing systems are often complex in structure, expensive, and lack optimization for the flowability of powdered raw materials. In recent years, with the development of industrial automation, automatic weighing technology has been gradually applied to the batching field.

[0003] In existing automatic weighing technology, raw materials are quantitatively discharged from silos according to a formula and then transported to a mixing device via a conveyor belt for mixing. The time interval between silo discharges has a significant impact on the efficiency of automatic weighing, which in turn is affected by the cycle time of one feeding stroke of the conveyor belt. Thus, the more types of raw materials there are and the wider the distribution of silos, the longer the time interval between automatic weighings becomes, thereby affecting the efficiency of automatic weighing. Summary of the Invention

[0004] To address the issue of long automatic weighing intervals in the case of large-span silo distribution, this application provides an automatic weighing system for a mixing workshop.

[0005] The automatic weighing system for a mixing workshop provided in this application adopts the following technical solution: An automatic weighing system for a mixing workshop includes a conveyor belt, silos, batching boxes, and weighing devices. The conveyor belt is used to transport the batching boxes. Multiple silos are provided and spaced apart along the conveying path of the conveyor belt. The conveyor belt has multiple batching stations, each corresponding to one of the silos. The silos are used to transport raw materials to the batching boxes that flow to the batching stations. Multiple weighing devices are provided and correspond one-to-one with the batching stations. The weighing devices are used to weigh the batching boxes located at the corresponding batching stations.

[0006] By adopting the above technical solution, when the batching box moves to the batching station along the assembly line conveyor, the silo supplies raw materials to the batching box. A weighing device monitors the weight of the batching box in real time; when the weight of the batching box reaches a preset value, the silo stops supplying raw materials to the batching box. Powder falls into the batching box, making it less prone to dust generation due to the movement of the conveyor belt. The assembly line conveyor can transport multiple batching boxes simultaneously, and the batching boxes can be stacked to a considerable height, thus increasing the load-bearing capacity of the assembly line conveyor. Furthermore, in cases where the silo has a large distribution span, this application, through the combination of the assembly line conveyor and batching box feeding, reduces the time interval between unloading from two batching boxes to a much shorter time than the conveyor belt feeding stroke in existing technologies, significantly shortening the unloading time interval and improving the efficiency of raw material batching.

[0007] Optionally, the rotation path of the conveyor belt is a closed loop on the horizontal plane. The conveyor belt is equipped with a mounting base for mounting the ingredient box. The ingredient box and the mounting base are slidably connected vertically. When the ingredient box moves to a batching station, the weighing device located at the batching station can lift the ingredient box and move it upward.

[0008] By adopting the above technical solution, the assembly line conveyor is set as a closed loop in the horizontal plane, enabling it to provide more batching stations. This results in a more compact distribution of the batching system, reducing the floor space required for installation. During the conveyor's transport of the batching boxes, the weight of the boxes acts on the mounting base. When the batching box is at a batching station on the assembly line conveyor, the weighing device lifts the box, allowing its weight to be applied to the weighing device, thus enabling it to measure the weight of the batching box.

[0009] Optionally, the rotation path of the conveyor belt is a closed loop on a horizontal plane. The conveyor belt is equipped with a mounting base for mounting the batching box, and the batching box is slidably connected to the mounting base vertically. The bottom of the batching box is equipped with wheels. The automatic weighing system also includes a track-shaped support plate for the wheels to travel on. The track-shaped support plate includes a fixed main rail and several functional rails set at the batching station. The functional rails are fixedly installed on the weighing surface of the weighing device.

[0010] By adopting the above technical solution, during the process of the conveyor belt driving the batching box to move, the weight of the batching box acts on the track-shaped support plate. When the batching box moves from the fixed main rail to the functional rail, the weight of the batching box acts on the weighing device through the functional rail, so that the weighing device can weigh the weight of the batching box.

[0011] Optionally, the bottom of the hopper is provided with a conveying pipe and a swing drive. The conveying pipe includes a fixed pipe and a movable pipe. The movable pipe is located below the fixed pipe and is movably connected to the fixed pipe. The swing drive is used to drive the movable pipe to swing back and forth.

[0012] By adopting the above technical solution, the oscillating drive can drive the movable tube to oscillate back and forth, so that the movable tube can follow the movement of the batching box, and the batching box can be weighed while moving with the conveyor belt, thereby improving the efficiency of batching.

[0013] Optionally, a flexible tube section is connected between the fixed tube and the movable tube. One end of the flexible tube section is sleeved with the lower end of the fixed tube, and the other end of the flexible tube section is inserted into the upper end of the movable tube. The swing drive is a telescopic drive, and the two ends of the telescopic drive are hinged.

[0014] By adopting the above technical solution, the telescopic drive component drives the movable tube to swing. During this process, the flexible joint deforms to adapt to the relative positional changes between the movable and fixed tube sections. The lower end of the fixed tube is inserted into the flexible tube section, and the lower end of the flexible tube section is inserted into the upper end of the movable tube, so that the fixed tube, flexible tube section, and movable tube form a descending stepped structure, making it less likely for raw materials to remain on the inner wall of the conveying tube.

[0015] Optionally, the fixed tube is fixedly provided with a first hinge rod, and the movable tube is fixedly provided with a second hinge rod. The first hinge rod and the second hinge rod are hinged together. The hinge point between the first hinge rod and the second hinge rod is located between the two ends of the flexible tube section. The hinge center line between the first hinge rod and the second hinge rod is parallel to the hinge center line at both ends of the telescopic drive member.

[0016] By adopting the above technical solution, the inner cavities of the fixed tube and the movable tube are connected in series using flexible tube sections, and the fixed tube and the movable tube are further connected by a first hinge rod and a second hinge rod, making the swinging action of the swinging drive component to drive the movable tube to swing more stable and smooth.

[0017] Optionally, the bottom of the ingredient box is provided with rollers, which can roll along the weighing surface of the weighing device.

[0018] By adopting the above technical solution, the ingredient box moves on the weighing surface of the weighing device via rollers, which can reduce the vibration during the movement of the ingredient box and help ensure the accuracy of dynamic weighing.

[0019] Optionally, the bottom of the ingredient box is provided with a discharge port, and the inner side of the ingredient box is provided with a sealing plate for closing the discharge port; the automatic weighing system also includes a sealing plate driving mechanism, which is used to drive the sealing plate to open and close.

[0020] By adopting the above technical solution, the sealing plate closes the discharge port at the bottom of the batching box, allowing the batching box to hold raw materials. After the batching box completes the batching process, the sealing plate is opened by the sealing plate drive mechanism, allowing the proportioned raw materials in the batching box to be discharged into the mixing equipment for mixing.

[0021] Optionally, the bottom wall of the ingredient box is provided with a first inclined surface and a second inclined surface, the first inclined surface and the second inclined surface forming an upward angle; the discharge port is provided on the first inclined surface, one side edge of the discharge port is connected to the second inclined surface, the sealing plate is vertically fixedly connected to a swing arm, the swing arm is vertically fixedly connected to a rotating shaft, and the rotating shaft is rotatably connected to the side wall of the ingredient box; the sealing plate driving mechanism can drive the rotating shaft to rotate.

[0022] By adopting the above technical solution, the sealing plate is rotatably mounted on the side wall of the mixing box via a swing arm. When the sealing plate closes the discharge port, the swing arm is perpendicular to the first inclined surface. When the sealing plate drive unit drives the rotating shaft to rotate, the sealing plate rotates around the shaft and leaves the discharge port, allowing the raw materials in the mixing box to be discharged from the discharge port. Since the discharge port is located on the first inclined surface and its edge connects with the second inclined surface, the raw materials will not remain on the bottom wall of the mixing box; moreover, when the sealing plate rotates open, the sealing plate is in an inclined state, ensuring that no raw materials remain on the surface of the sealing plate.

[0023] Optionally, the swing arm is a telescopic rod structure, and the swing arm has a built-in compression spring. When the sealing plate closes the discharge port, the compression spring is in a compressed state.

[0024] By adopting the above technical solution, the swing arm is set as a telescopic rod structure with built-in compression spring, so that the sealing plate can press against the edge of the discharge port.

[0025] Optionally, the ingredient box is detachably connected to the conveyor belt, and the ingredient box is equipped with a detachable lid. The lid is equipped with a stirrer for stirring the raw materials in the ingredient box.

[0026] By adopting the above technical solution, the ingredient container is equipped with a lid featuring a stirrer, allowing it to be used directly as a mixing container. During mixing, the lid provides a seal, effectively suppressing dust generation.

[0027] In summary, this application includes at least one of the following beneficial technical effects: 1. In the case of a large distribution span of material bins, this application uses a conveyor system combined with batching boxes for feeding. The time interval between unloading from the two batching boxes is much shorter than the feeding time of the conveyor belt in the prior art, which greatly shortens the unloading time interval and helps to improve the efficiency of raw material batching.

[0028] 2. The oscillating drive can drive the movable tube to oscillate back and forth, so that the movable tube can follow the movement of the batching box, and the batching box can be weighed while moving with the conveyor belt, thereby improving the efficiency of batching. Attached Figure Description

[0029] Figure 1 This is a top view of the automatic weighing system in the mixing workshop of Example 1.

[0030] Figure 2 This is a schematic diagram of the ingredient box at the ingredient dispensing station in Example 1.

[0031] Figure 3 This is a schematic diagram of the mixing box and sealing plate driving mechanism in Example 1.

[0032] Figure 4 This is a schematic diagram of the ingredient box at the ingredient dispensing station in Example 2.

[0033] Figure 5 This is a schematic diagram of the ingredient box in Example 3.

[0034] Figure 6 This is a schematic diagram of the installation state of the ingredient box on the conveyor belt in Example 3.

[0035] Figure 7 This is a schematic diagram of the ingredient box on the weighing device in Example 4.

[0036] Explanation of reference numerals in the attached figures: 1. Conveying device for assembly line; 11. Mounting base; 111. Vertical pin; 2. Hopper; 21. Conveying pipe; 211. Fixed pipe; 212. Movable pipe; 213. Flexible pipe section; 22. Electrically controlled switch valve; 23. Swing drive component; 231. Adapter; 24. First hinge rod; 25. Second hinge rod; 3. Batching box; 31. Traveling wheel; 32. First inclined plane; 33. Second inclined plane; 34. Discharge port; 35. Sealing plate; 36. Swing arm; 361. Rod body; 362. Sleeve; 363. Compression spring; 37. Rotating shaft; 38. Agitator; 39. Box cover; 4. Weighing device; 6. Batching station; 7. Track-shaped support plate; 71. Fixed main rail; 72. Functional rail; 711. Mounting notch; 73. Guide post and guide sleeve assembly; 8. Sealing plate drive mechanism; 81. Reciprocating telescopic drive; 82. Horizontal push rod; 9. Lifting drive mechanism. Detailed Implementation

[0037] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0038] Example 1 This application discloses an automatic weighing system for a mixing workshop. (Refer to...) Figure 1 and Figure 2 The automatic weighing system in the mixing workshop includes a conveyor belt 1, a silo 2, a weighing device 4, a batching box 3, and a controller. The conveyor belt 1, silo 2, and weighing device 4 are installed on the steel structure frame of the production workshop. The conveyor belt 1 is used to transport the batching box 3. There are multiple silos 2, which are equidistantly distributed along the conveying path of the conveyor belt 1. The conveyor belt 1 has multiple batching stations 6, which correspond one-to-one with multiple silos 2. The bottom of the silo 2 is equipped with a conveying pipe 21 and an electrically controlled switch valve 22. The conveying pipe 21 is connected to the inner cavity of the silo 2, and the electrically controlled switch valve 22 is installed at the top of the conveying pipe 21. The silo 2 is used to transport raw materials to the batching box 3 that flows to the batching station 6. There are multiple weighing devices 4, which are set up one-to-one with multiple batching stations 6. The weighing device 4 is used to weigh the batching box 3 located at the corresponding batching station 6.

[0039] The weighing device 4 is an electronic scale. The weighing device 4, the conveyor belt 1, and the electrically controlled switch valve 22 are all electrically connected to the controller. The controller can collect the weighing data of the weighing device 4 and control the operation of the conveyor belt 1 and the electrically controlled switch valve 22.

[0040] The conveyor belt 1 drives the batching box 3 to flow between different batching stations 6. The controller controls the opening of the electrically controlled switch valve 22, so that the hopper 2 conveys raw materials to the batching box 3. The weighing device 4 monitors the weight of the batching box 3 in real time. When the weight of the batching box 3 reaches the preset value, the controller controls the hopper 2 to stop conveying raw materials to the batching box 3. After the batching box 3 flows through each batching station 6, the batching is completed.

[0041] The rotation path of the assembly line conveyor 1 is a closed loop path located on the horizontal plane. The assembly line conveyor 1 is a loop guide rail line. The assembly line conveyor 1 is provided with a mounting base 11 for installing the batching box 3. The batching box 3 and the mounting base 11 are slidably connected vertically.

[0042] The bottom of the batching box 3 is provided with a traveling wheel 31. The automatic weighing system also includes a track-shaped support plate 7 for the traveling wheel 31 to travel. The assembly line conveyor 1 is provided with a track-shaped support plate 7 for the traveling wheel 31 to travel. The track-shaped support plate 7 includes a fixed main rail 71 and several functional rails 72 set at the batching station 6. The fixed main rail 71 is provided with several mounting notches 711 for the functional rails 72 to be embedded. The functional rails 72 are fixedly installed on the weighing surface of the weighing device 4.

[0043] Reference Figure 3The bottom wall of the ingredient box 3 is provided with a first inclined surface 32 and a second inclined surface 33, and the first inclined surface 32 and the second inclined surface 33 form an upward angle. The bottom of the ingredient box 3 is provided with a discharge port 34, which is located on the first inclined surface 32. One side edge of the discharge port 34 is connected to the second inclined surface 33. The inner side of the ingredient box 3 is provided with a sealing plate 35 for closing the discharge port 34. The sealing plate 35 is vertically fixedly connected with a swing arm 36. The end of the swing arm 36 away from the sealing plate 35 extends out of the ingredient box 3. The swing arm 36 is vertically fixedly connected with a rotating shaft 37, which is rotatably connected to the side wall of the ingredient box 3.

[0044] Reference Figure 3 The swing arm 36 is a telescopic rod structure. There are two swing arms 36, which are spaced apart along the circumference of the rotating shaft 37. Both swing arms 36 are connected to the rotating shaft 37. The swing arm 36 includes a rod body 361 and a sleeve 362. The rod body 361 and the sleeve 362 are slidably inserted. The end of the rod body 361 away from the sleeve 362 is vertically fixed to the rotating shaft 37. The end of the sleeve 362 away from the rod body 361 is vertically fixed to the sealing plate 35. A compression spring 363 is provided inside the sleeve 362. One end of the compression spring 363 abuts against the rod body 361, and the other end abuts against the sealing plate 35. When the sealing plate 35 closes the discharge port 34, the compression spring 363 is in a compressed state, so that the sealing plate 35 can press against the edge of the discharge port 34.

[0045] Reference Figure 1 and Figure 3 The automatic weighing system also includes a sealing plate drive mechanism 8, which comprises a reciprocating telescopic drive 81 and a horizontal push rod 82. The reciprocating telescopic drive 81 extends in the same direction. The linear reciprocating drive component is a pneumatic cylinder or an electric cylinder. The horizontal push rod 82 is perpendicular to the extension direction of the reciprocating telescopic drive 81 and is located at the corner of the closed path of the conveyor belt 1. When the reciprocating telescopic drive 81 is in the retracted state, the horizontal push rod 82 interferes with the upper end of the swing arm 36 before the turn, causing... The horizontal push rod 82 can force the upper end of the swing arm 36 to rotate downward to avoid the horizontal push rod 82, thereby causing the swing arm 36 to rotate and drive the sealing plate 35 to open for unloading. When the swing arm 36 turns, the crank arm separates from the horizontal push rod 82, thereby causing the swing arm 36 to return to its original position. At this time, the reciprocating telescopic drive 81 drives the horizontal push rod 82 to push the swing arm 36 against the first inclined surface 32 of the mixing box 3 in the opposite direction. The sealing plate drive mechanism 8 can apply torque in different directions to the swing arm 36, thereby driving the sealing plate 35 to open and close.

[0046] In another embodiment, the sealing plate drive mechanism 8 can be replaced by a robotic arm that directly grips the swing arm 36 and drives the swing arm 36 to rotate.

[0047] The implementation principle of an automatic weighing system in a mixing workshop according to an embodiment of this application is as follows: When the batching box 3 moves to the batching station 6 along the conveyor belt 1, the silo 2 feeds raw materials to the batching box 3. The weighing device 4 monitors the weight of the batching box 3 in real time. When the weight of the batching box 3 reaches a preset value, the silo 2 stops feeding raw materials to the batching box 3. The powder falls into the batching box 3, and is less likely to generate dust due to the movement of the conveyor belt. The conveyor belt 1 can transport multiple batching boxes 3 simultaneously, which increases the load-bearing capacity of the conveyor belt 1. Furthermore, in the case of a large distribution span of the silo 2, this application, through the combination of the conveyor belt 1 and the batching box 3 feeding, reduces the time interval between unloading of two batching boxes 3 by much less than the feeding stroke time of the conveyor belt in the prior art, significantly shortening the unloading time interval and improving the efficiency of raw material batching.

[0048] Example 2 In this embodiment, the structure of the silo 2 differs from that in embodiment 1, as shown below. Figure 4 In this embodiment, the material conveying pipe 21 includes a fixed pipe 211, a movable pipe 212, and a flexible pipe section 213. The movable pipe 212 is located below the fixed pipe 211. The electrically controlled switch valve 22 is installed on the upper end of the fixed pipe 211. One end of the flexible pipe section 213 is sleeved with the lower end of the fixed pipe 211, and the other end of the flexible pipe section 213 is inserted into the upper end of the movable pipe 212. The flexible joint is a rubber tube or a metal flexible tube. A swing drive component 23 for driving the movable pipe 212 to swing is connected between the fixed pipe 211 and the movable pipe 212.

[0049] The swing drive 23 is a telescopic drive, specifically an electric cylinder, a pneumatic cylinder, or a linear module. The two ends of the telescopic drive are hinged. One end of the telescopic drive is connected to the fixed tube 211 through the adapter 231, and the other end is connected to the movable tube 212. The telescopic drive forms an angle with the movable tube 212 and also with the fixed tube 211.

[0050] The fixed tube 211 is fixedly provided with a first hinge rod 24, and the movable tube 212 is fixedly provided with a second hinge rod 25. The first hinge rod 24 and the second hinge rod 25 are hinged together. The hinge point between the first hinge rod 24 and the second hinge rod 25 is located between the two ends of the flexible tube section 213. The hinge center line between the first hinge rod 24 and the second hinge rod 25 is parallel to the hinge center line at both ends of the telescopic drive component.

[0051] In this embodiment, the swing drive 23 can drive the movable tube 212 to swing back and forth, so that the movable tube 212 can move with the ingredient box 3, and the ingredient box 3 can move with the conveyor belt 1 while being weighed, thereby improving the efficiency of ingredient dispensing.

[0052] In order to make the mixing box 3 move smoothly on the functional rail 72, guide post and guide sleeve assemblies 73 are respectively set at both ends of the functional rail 72. The guide rail in the guide post and guide sleeve assembly 73 is connected to the functional rail 72, and the guide sleeve is fixed on the steel structure frame of the workshop.

[0053] Example 3 Reference Figure 5 and Figure 6 The difference between this embodiment and embodiment 1 is that the ingredient box 3 does not have a sealing plate 35 and a sealing plate driving mechanism 8. In this embodiment, the mounting base 11 is detachably connected to the conveyor belt 1 using a vertical pin 111, so that the ingredient box 3 can be detachably hung on the conveyor belt 1. The ingredient box 3 is equipped with a detachable lid 39, and the lid 39 is equipped with a stirrer 38. When the lid 39 is engaged with the ingredient box 3, the stirring paddle of the stirrer 38 can stir and mix the raw materials in the ingredient box 3.

[0054] The mixing box 3 is equipped with a lid 39 containing a stirrer 38, allowing the mixing box 3 to be used directly as a mixing container. When mixing materials, the mixing box 3 is sealed with the lid 39, which can suppress dust generation during the mixing process.

[0055] Example 4 Reference Figure 7 The difference between this embodiment and embodiment 1 is that the track-shaped support plate 7 is not provided in this embodiment, and the batching box 3 is hung on the mounting base 11. The weighing device 4 is installed on the lifting drive mechanism, which is a hydraulic cylinder or a pneumatic cylinder. When the batching box 3 moves close to the batching station 6 with the conveyor belt 1, the lifting drive mechanism lifts the weighing device 4 and the batching box 3 upwards, so that the gravity of the batching box 3 acts on the weighing device.

[0056] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automatic weighing system for a mixing workshop, characterized in that: The assembly includes a conveyor system (1), silos (2), batching boxes (3), and a weighing device (4). The conveyor system (1) is used to transport the batching boxes (3). Multiple silos (2) are provided and are distributed at intervals along the conveying path of the conveyor system (1). The conveyor system (1) has multiple batching stations (6), each corresponding to one of the multiple silos (2). The silos (2) are used to transport raw materials to the batching boxes (3) that are transferred to the batching stations (6). The weighing device (4) has multiple... Each of the silos (2) is provided with a material conveying pipe (21) and a swing drive (23) corresponding to multiple material dispensing stations (6). The weighing device (4) is used to weigh the material dispensing box (3) located at the corresponding material dispensing station (6). The bottom of the silo (2) is provided with a material conveying pipe (21) and a swing drive (23). The material conveying pipe (21) includes a fixed pipe (211) and a movable pipe (212). The movable pipe (212) is located below the fixed pipe (211). The movable pipe (212) is movably connected to the fixed pipe (211). The swing drive (23) is used to drive the movable pipe (212) to swing back and forth.

2. The automatic weighing system for a mixing workshop according to claim 1, characterized in that: The rotation path of the conveyor (1) is a closed loop on the horizontal plane. The conveyor (1) is provided with a mounting base (11) for installing the batching box (3). The batching box (3) and the mounting base (11) are slidably connected vertically. The bottom of the batching box (3) is provided with a traveling wheel (31). The automatic weighing system also includes a track-shaped support plate (7) for the traveling wheel (31) to travel. The track-shaped support plate (7) includes a fixed main rail (71) and several functional rails (72) set at the batching station (6). The functional rails (72) are fixedly installed on the weighing surface of the weighing device (4).

3. The automatic weighing system for a mixing workshop according to claim 1, characterized in that: The fixed tube (211) and the movable tube (212) are connected by a flexible tube section (213). One end of the flexible tube section (213) is sleeved with the lower end of the fixed tube (211), and the other end of the flexible tube section (213) is inserted into the upper end of the movable tube (212). The swing drive (23) is a telescopic drive, and the two ends of the telescopic drive are hinged.

4. The automatic weighing system for a mixing workshop according to claim 3, characterized in that: The fixed tube (211) is fixedly provided with a first hinge rod (24), and the movable tube (212) is fixedly provided with a second hinge rod (25). The first hinge rod (24) and the second hinge rod (25) are hinged together. The hinge point between the first hinge rod (24) and the second hinge rod (25) is located between the two ends of the flexible tube section (213). The hinge center line between the first hinge rod (24) and the second hinge rod (25) is parallel to the hinge center line at both ends of the telescopic drive member.

5. An automatic weighing system for a mixing workshop according to claim 1, characterized in that: The bottom of the mixing box (3) is provided with a discharge port (34), and the inner side of the mixing box (3) is provided with a sealing plate (35) for closing the discharge port (34); the automatic weighing system also includes a sealing plate driving mechanism (8), which is used to drive the sealing plate (35) to open and close.

6. An automatic weighing system for a mixing workshop according to claim 5, characterized in that: The bottom wall of the mixing box (3) is provided with a first inclined surface (32) and a second inclined surface (33), the first inclined surface (32) and the second inclined surface (33) forming an upward angle; the discharge port (34) is provided on the first inclined surface (32), one side edge of the discharge port (34) is connected to the second inclined surface (33), the sealing plate (35) is vertically fixedly connected to a swing arm (36), the swing arm (36) is vertically fixedly connected to a rotating shaft (37), the rotating shaft (37) is rotatably connected to the side wall of the mixing box (3); the sealing plate driving mechanism (8) can drive the rotating shaft (37) to rotate.

7. An automatic weighing system for a mixing workshop according to claim 6, characterized in that: The swing arm (36) is a telescopic rod structure. The swing arm (36) has a built-in compression spring (363). When the sealing plate (35) closes the discharge port (34), the compression spring (363) is in a compressed state.

8. An automatic weighing system for a mixing workshop according to claim 1, characterized in that: The ingredient box (3) is detachably connected to the conveyor belt (1). The ingredient box (3) is equipped with a detachable lid (39). The lid (39) is equipped with a stirrer (38). The stirrer (38) is used to stir the raw materials in the ingredient box (3).

Images