Production line for multi-product processing

Abstract

The invention relates to the technical field of production lines, and provides a production line for multi-product processing. The three-dimensional warehouse is statically arranged relative to the equipment line and is provided with a plurality of warehouse positions; the two limiting plates are both movably arranged in the storage location, a limiting area is formed between the two limiting plates, and the two limiting plates get close to each other or get away from each other after moving and are used for limiting the mold in the limiting area; and the stacking machine is movably arranged relative to the three-dimensional warehouse and is provided with an operation bearing part, and after the stacking machine moves, the operation bearing part is used for pushing the two limiting plates and bearing the transfer mold. By means of the technical scheme, the problem that in the prior art, the position of a mold in the storage location of a three-dimensional warehouse in a production line cannot be guaranteed is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of production lines, and in particular to a production line for processing multiple products. Background Art

[0002] The resin sand intelligent production line is an advanced casting technology that came into being against the backdrop of the development of modern manufacturing. With the continuous development of industry, the requirements for the quality, precision and production efficiency of castings are becoming increasingly higher. Traditional modeling methods are gradually unable to meet the market demand for high-quality, complex-shaped castings. In the fields of automobiles, machinery, aerospace, etc., a large number of high-quality and diverse castings are required to ensure product performance and reliability.

[0003] Currently, many production lines are faced with the need to produce a variety of products, which requires the use of molds for different products. In traditional technology, even if the production volume is large, different molds need to be manually allocated step by step, which has high labor costs and low safety. Therefore, a three-dimensional warehouse is equipped in the production line to store and transport the molds required.

[0004] However, the three-dimensional warehouses in the current production lines are mostly completed by equipment such as palletizers, and various molds are only stored in the specified storage locations of the three-dimensional warehouse. The molds are not stable enough in the warehouse. Due to workers' misoperation, the molds in the storage location may fall or be misplaced, making it difficult to take out. Summary of the invention

[0005] The present invention provides a production line for processing multiple products, which solves the problem in the related art that the positions of molds in a three-dimensional warehouse in the production line cannot be guaranteed.

[0006] The technical solution of the present invention is as follows: A production line for multi-product processing, comprising: Equipment line; A three-dimensional warehouse, which is arranged statically relative to the equipment line and has a plurality of storage locations; Two limiting plates, both of which are movably arranged in the storage position, forming a limiting area between the two, and the two limiting plates move closer to or farther from each other to limit the mold in the limiting area; A palletizer is movably arranged relative to the three-dimensional warehouse, and the palletizer has an operation support portion. After the palletizer moves, the operation support portion is used to push the two limit plates and support the transfer of the mold.

[0007] As a further technical solution, it also includes: A support plate, wherein the support plate is fixedly arranged at the bottom of the storage position, and two ends of the support plate respectively penetrate the two limit plates, and the limit plate is movably arranged on the support plate, and the limit area is formed between the two limit plates and the support plate; A scissor-type frame, wherein two ends of the scissor-type frame are respectively connected to the two limit plates.

[0008] As a further technical solution, the operation supporting part has a rack, the scissors-type frame is located below the support plate, the scissors-type frame has a central gear part, the central gear part passes through the support plate and is located in the limiting area, after the operation supporting part moves, the rack engages or disengages with the central gear part, and is used to push the two limiting plates through the scissors-type frame.

[0009] As a further technical solution, it also includes: A top plate, the top plate being arranged on the limiting plate, and the top plate is used to release the limiting of the top of the mold after the limiting plate moves; Four vertex clamps are all movably arranged on the support plate and are all located at the bottom of the limiting area. After moving, the four vertex clamps move closer to or farther away from each other, so as to release the limiting of the bottom of the mold.

[0010] As a further technical solution, the four vertex clamping members are arranged along a matrix, the vertex clamping members have a guide slope, and the limit plate has a guide pusher. After the two limit plates move away from each other, they first drive the top plate to release the limit on the top of the mold, and then push the guide slope through the guide pusher.

[0011] As a further technical solution, there are two guide pushers, each of which is located between two adjacent vertex clamps. The guide pusher is triangular, and the top of the guide pusher and the top of the guide slope are both lower than the top of the operating support portion.

[0012] As a further technical solution, the vertex clamping piece has a right-angle limiting surface and a sliding slope, the sliding slope is located below the right-angle limiting surface, and the bottom surface of the sliding slope is higher than the top surface of the operating support part. After the four vertex clamping pieces move away from each other, they are used to release and slide the mold down onto the operating support part.

[0013] As a further technical solution, the support plate further has a guide groove, the vertex clamp is movably arranged in the guide groove, and the length direction of the guide groove is arranged along the diagonal line of the mold.

[0014] As a further technical solution, it also includes: An elastic member, two ends of which are respectively connected to the support plate and the vertex clamping member, the elastic member is located in the guide groove, and the elastic member provides a force for the four vertex clamping members to approach each other.

[0015] The working principle and beneficial effects of the present invention are: In the present invention, in the resin sand molding production line, since the hardening of the resin takes a certain amount of time, and the mold opening cost is very high, in order to improve the operation rate of the equipment, multiple different products need to be cross-produced together. Since the production quantity, size and shape of each product are different, different sand boxes are required. The production line will frequently replace the mold and sand box, which reduces the efficiency of the production line. Therefore, a stereoscopic warehouse is required to store the mold and the empty sand box, reduce the labor intensity of the manual labor, reduce the downtime caused by manual errors, use the stereoscopic warehouse and the intelligent system to plan and schedule production, and produce different products of the same material in the same batch.

[0016] When the three-dimensional warehouse in the resin sand intelligent production line is in operation, it includes the following key steps: warehousing process, storage operation, inventory operation, outbound process and information management and interaction, which completely replaces the manual operation of mold allocation, greatly reduces labor costs and ensures a certain degree of safety. The three-dimensional warehouse is divided into various types, such as beam-type three-dimensional warehouse, through-type three-dimensional warehouse or automated cabinet-type three-dimensional warehouse, etc. Various three-dimensional warehouses have their own defects, but all three-dimensional warehouses have a common problem: the action is completed by the palletizer, and various molds are only stored in the specified storage location of the three-dimensional warehouse. The mold is not stable enough in it. Due to human error, the mold in the storage location may fall or be misplaced, making it difficult to take out.

[0017] In order to solve the above problems, a limit plate for limiting the mold is installed in the storage location, and it is linked with the operating support part of the palletizer. When the operating support part moves into the storage location to support or store the mold, it will first be linked with the limit plate to release the mold in the limiting area, and then it can be successfully taken away or stored.

[0018] Specifically, the three-dimensional warehouse is equipped in the equipment line, making full use of the vertical space and providing a large number of storage locations within a limited floor space; the two limit plates move in the storage location and can be adjusted according to molds of different sizes, and the limit area formed can accurately limit the mold to a specific position; this not only ensures the stability of the mold during storage and prevents damage caused by shaking or displacement, but also facilitates the accurate operation of the subsequent palletizer. The flexible operating support part of the palletizer can first push the limit plate to adjust the position, and then support the transfer of the mold. The sequence of steps before and after realizes the rapid and accurate transfer of the mold between the three-dimensional warehouse and the equipment line. This efficient transfer method greatly shortens the handling time of the mold and improves production efficiency. At the same time, in the scenario of multi-product processing, it can quickly respond to the production needs of different products and deliver the required molds to the designated location in time, reducing production waiting time and improving the overall operation efficiency of the production line.

[0019] Among them, the storage location management system of the three-dimensional warehouse can monitor the storage location and status of the molds in real time, which is convenient for enterprises to manage inventory. Managers can quickly query the location of the required molds through the system, accurately grasp the inventory quantity and usage, and timely allocate and replenish the molds. This helps to improve the accuracy and efficiency of inventory management, reduce inventory costs, and avoid production delays caused by mold loss or management confusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0021] Figure 1 It is a schematic diagram of the equipment line and the three-dimensional warehouse structure in the present invention; Figure 2 It is a schematic diagram of the structure of the three-dimensional library in the present invention; Figure 3 For the present invention Figure 2 Enlarged view of part A in the middle; Figure 4 It is a schematic diagram of the structure of the limiting area in the present invention; Figure 5 It is a schematic diagram of the scissor frame structure in the present invention; Figure 6 It is a schematic diagram of the structure of the vertex clamping member in the present invention; Figure 7 It is a state diagram of the vertex clamping member releasing the mold in the present invention; Figure 8 For the present invention Figure 6 Enlarged view of middle part B; Fig. 9 For the present invention Figure 6 Enlarged view of middle C; Fig.10 It is a schematic diagram of the elastic member structure in the present invention.

[0022] In the figure: 1. equipment line, 2. three-dimensional warehouse, 201. storage position, 3. limit plate, 301. limit area, 4. mold, 5. palletizer, 501. operation support part, 502. rack, 6. support plate, 601. guide groove, 7. scissors frame, 701. center gear part, 8. top plate, 9. vertex clamping part, 901. guide slope, 902. right-angle limit surface, 903. downward sliding slope, 10. guide pusher, 11. elastic part. DETAILED DESCRIPTION

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0024] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0025] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0027] Reference Figure 1 to Figure 10, which is the first embodiment of the present invention, proposes a production line for multi-product processing, including: an equipment line 1; a three-dimensional warehouse 2, which is statically arranged relative to the equipment line 1, and has a plurality of storage positions 201; two limiting plates 3, which are both movably arranged in the storage positions 201, and a limiting area 301 is formed between the two. After the two limiting plates 3 move, they move closer to or farther away from each other, so as to limit the mold 4 in the limiting area 301; a palletizer 5, which is movably arranged relative to the three-dimensional warehouse 2, and has an operating support part 501. After the palletizer 5 moves, the operating support part 501 is used to push the two limiting plates 3 and support the transfer mold 4.

[0028] In the resin sand molding production line, the hardening of the resin takes a certain amount of time, and the mold opening cost is very high. In order to improve the operating rate of the equipment, it is necessary to cross-produce a variety of different products together. Since the production quantity, size and shape of each product are different, different sand boxes are required. The production line will frequently change molds and sand boxes, which reduces the efficiency of the production line. Therefore, a three-dimensional warehouse is needed to store molds and empty sand boxes to reduce the labor intensity of manual labor and reduce the downtime caused by manual errors. The three-dimensional warehouse and intelligent system are used to plan and schedule production, and different products of the same material are produced in the same batch.

[0029] During the production process, the production line includes a preparation station, a box-fitting station, sand filling, a vibration station, a hardening station, a demolding station, a molding station, a flow coating station, a surface drying station, and a three-dimensional warehouse storage area. These stations are connected into a line with rollers and transfer vehicles. Therefore, a three-dimensional warehouse is set up in the molding department, which is mainly used to store molds and empty sand boxes. The three-dimensional warehouse is combined with an intelligent system to plan and schedule production, and different products of the same material are produced in the same batch. Specifically, first, according to the instructions of the intelligent system of the production line, the mold is taken out of the three-dimensional warehouse and transferred to the preparation station by a transfer vehicle. At the preparation station, preparatory work such as mold cleaning, spraying of parting agent, and placement of cold iron is carried out; then the prepared mold is moved forward to the box-fitting station, and at the same time, the empty sand box is taken out of the three-dimensional warehouse, and the sand box is automatically put on the mold at the box-fitting station; then the lower mold with the sand box put on is transferred to the molding station by the transfer vehicle, and sand filling and molding are carried out at the molding station, and the molded sand box moves forward , the sand mold will gradually harden with the extension of time; then the upper mold with the sand box is transferred to the molding station by the transfer vehicle, and sand filling and molding are carried out at the molding station. The molded sand box moves forward, and the sand mold will gradually harden with the extension of time; then the hardened sand box moves forward to the demolding station, and is automatically demolded by the flip demolding machine; then the sand mold after demolding moves forward, and the molding work is completed during the operation; then the mold after demolding is transferred to the preparation station by the transfer vehicle to enter the next working cycle, and the intelligent system of the production line adds the molding quantity of the mold; then when the molding quantity of the mold reaches the requirement of the intelligent system of the production line, the mold after flip demolding automatically enters the three-dimensional warehouse; at the same time, the new mold is taken out of the three-dimensional warehouse for the next working cycle; then the sand mold after molding moves forward and enters the flow coating station to perform flow coating on the surface of the sand mold; then the sand mold after flow coating moves forward and enters the surface drying station to perform surface drying of the coating on the surface of the sand mold. The entire resin sand process molding production line has greatly reduced labor intensity and improved productivity due to the addition of a three-dimensional warehouse. However, there are some problems with the current three-dimensional warehouse. In order to specifically solve these problems, it is improved through the following improvements.

[0030] Specifically in the present embodiment, the three-dimensional warehouse 2 in the resin sand intelligent production line includes the following key steps during operation: warehousing process, storage operation, inventory operation, outbound process and information management and interaction, which completely replaces the manual operation of mixing molds 4, greatly reduces labor costs and ensures a certain degree of safety. The three-dimensional warehouse 2 is divided into various types, such as beam-type three-dimensional warehouse 2, through-type three-dimensional warehouse 2 or automated cabinet-type three-dimensional warehouse 2, etc. Various three-dimensional warehouses 2 have their own defects, but all three-dimensional warehouses 2 have a common problem: the action is completed by the stacker 5, and various molds 4 are only stored in the specified storage position 201 of the three-dimensional warehouse 2. The mold 4 is not stable enough therein, and may fall or be misplaced in the storage position 201 due to human error, making it difficult to take out and other problems occur.

[0031] In order to solve the above problem, a limiting plate 3 for limiting the mold 4 is installed in the storage position 201, and it is linked with the operating support part 501 of the palletizer 5. When the operating support part 501 moves into the storage position 201 to support or store the mold 4, it will first be linked with the limiting plate 3 to release the mold 4 in the limiting area 301, and then it can be smoothly taken away or stored.

[0032] Specifically, the three-dimensional warehouse 2 is equipped in the equipment line 1, making full use of the vertical space and providing a large number of storage locations 201 within a limited floor space; the two limiting plates 3 move in the storage location 201 and can be adjusted according to the molds 4 of different sizes, and the formed limiting area 301 can accurately limit the mold 4 within the limiting area 301; this not only ensures the stability of the mold 4 during storage and prevents damage caused by shaking or displacement, but also facilitates the accurate operation of the subsequent palletizer 5. The flexible operating support part 501 of the palletizer 5 can push the limiting plate 3 to adjust the position, and then support the transfer of the mold 4. The front and back sequence of the steps realizes the rapid and accurate transfer of the mold 4 between the three-dimensional warehouse 2 and the equipment line 1. This efficient transfer method greatly shortens the handling time of the mold 4 and improves production efficiency. At the same time, in the scenario of multi-product processing, it can quickly respond to the production needs of different products, and timely deliver the required mold 4 to the designated location, reducing the production waiting time and improving the overall operation efficiency of the production line.

[0033] Among them, the storage location 201 management system of the three-dimensional warehouse 2 can monitor the storage location and status of the mold 4 in real time, which is convenient for the enterprise to manage inventory. The manager can quickly query the location of the required mold 4 through the system, accurately grasp the inventory quantity and usage, and timely allocate and replenish the mold 4. This helps to improve the accuracy and efficiency of inventory management, reduce inventory costs, and avoid production delays caused by the loss of molds 4 or chaotic management.

[0034] Furthermore, it also includes: a support plate 6, the support plate 6 is fixedly arranged at the bottom of the storage position 201, and the two ends of the support plate 6 respectively pass through the two limit plates 3, the limit plates 3 are movably arranged on the support plate 6, and a limit area 301 is formed between the two limit plates 3 and the support plate 6; a scissor frame 7, and the two ends of the scissor frame 7 are respectively connected to the two limit plates 3.

[0035] In this embodiment, the support plate 6 is welded to the bottom of the storage location 201, providing a stable supporting foundation for the limit plate 3. In actual production, when the mold 4 is placed in the limit area 301, the support plate 6 can bear the weight of the mold 4 to ensure stability and will not cause the limit plate 3 to tilt or deform. At the same time, the limit plate 3 is penetrated by the support plate 6 and moves on it. A scissor frame 7 is further welded between the two limit plates 3. Instead of adding a cylinder or other driving form, the scissor frame 7 is installed between the two limit plates 3 to reduce the space occupied, thereby storing more types of molds 4 in the same storage location 201; at the same time, it can also stably control its movement.

[0036] Furthermore, the operation supporting part 501 has a rack 502, and the scissors-type frame 7 is located below the support plate 6. The scissors-type frame 7 has a central gear part 701, and the central gear part 701 passes through the support plate 6 and is located in the limiting area 301. After the operation supporting part 501 moves, the rack 502 engages or disengages with the central gear part 701, and is used to push the two limiting plates 3 through the scissors-type frame 7.

[0037] In this embodiment, the scissors-type frame 7 is below the support plate 6 so as not to affect the movement of the operating support portion 501, because the operating support portion 501 needs to contact the bottom of the mold 4 on the support plate 6 to complete the above-mentioned movement. In order to complete the linkage movement between the two, a central gear portion 701 is provided at the center position of the scissors-type frame 7, which penetrates the support plate 6 and is exposed in the limiting area 301, so as to be engaged with the rack 502 of the movable operating support portion 501, so that the movement of the operating support portion 501 produces a chain reaction, driving the scissors-type frame 7 to release the limiting effect of the two limiting plates 3 on the mold 4, and saving the cost of an additional power source for driving the movement of the scissors-type frame 7.

[0038] Furthermore, it also includes: a top plate 8, which is arranged on the limiting plate 3. After the limiting plate 3 moves, the top plate 8 is used to release the limitation on the top of the mold 4; four vertex clamps 9, which are all movably arranged on the support plate 6 and are all located at the bottom of the limiting area 301. After the four vertex clamps 9 move, they move closer to or farther away from each other, so as to release the limitation on the bottom of the mold 4.

[0039] In this embodiment, in order to more stably limit the mold 4 in the limiting area 301, it is divided into an upper and lower part. The top plate 8 that moves with the limiting plate 3 plays the role of limiting the top of the mold 4, and the four vertex clamps 9 supported by the support plate 6 and moving at the bottom of the limiting area 301 realize the limiting effect on the bottom of the mold 4 from the four corners. Only when the upper and lower directions are released from the limit, can the mold 4 be operated, which greatly improves the safety.

[0040] Furthermore, four vertex clamps 9 are arranged along a matrix, the vertex clamps 9 have a guide slope 901, and the limit plate 3 has a guide pusher 10. After the two limit plates 3 move away from each other, they first drive the top plate 8 to release the limit on the top of the mold 4, and then push the guide slope 901 through the guide pusher 10.

[0041] In this embodiment, the step sequence is further set to first release the limit of the top plate 8 on the top of the mold 4, and then release the limit of the bottom of the mold 4 by the four vertex clamping members 9, and the above actions are completed by using the action of the limit plates 3 moving away from each other without adding an additional power source. Therefore, a guide pusher 10 is welded on both limit plates 3. By using the properties of the guide slope 901, after the limit plate 3 moves to and the top plate 8 takes effect, the two groups of limit plates 3 continue to move away from each other, and then the guide pusher 10 on the limit plate 3 will push the four vertex clamping members 9 through the guide slope 901 to release the limit on the bottom of the mold 4. Therefore, the guide pusher 10 needs to have a certain length to ensure the above steps.

[0042] Furthermore, there are two guide pushers 10 , which are located between two adjacent vertex clamping members 9 . The guide pushers 10 are triangular in shape, and the top of the guide pushers 10 and the top of the guide slope 901 are both lower than the top of the operation support portion 501 .

[0043] In this embodiment, two specific limit plates 3 are welded with guide pushers 10, which are triangular in shape. This is because a group of guide pushers 10 need to be between two vertex clamping members 9 to provide synchronous force for the two, and the top of the guide pusher 10 and the top of the guide slope 901 are both set lower than the top of the operating support part 501 to avoid interference with the mold 4 to be supported by the operating support part 501 during the entire moving process.

[0044] Furthermore, the vertex clamping piece 9 has a right-angle limiting surface 902 and a downward sliding slope 903. The downward sliding slope 903 is located below the right-angle limiting surface 902. The bottom surface of the downward sliding slope 903 is higher than the top surface of the operating support portion 501. After the four vertex clamping pieces 9 are away from each other, they are used to release and slide the mold 4 down onto the operating support portion 501.

[0045] In this embodiment, the vertex clamping member 9 is further designed to have a right-angle limiting surface 902 and a sliding slope 903. While completing the action of releasing the mold 4, the mold 4 can be slowly slid down from a certain height to the operating support part 501, so that the mold 4 can be smoothly supported and contacted with the bottom of the mold 4. The height of the mold 4 in the initial state is higher than the operating support part 501, and vice versa when the mold 4 is stored. The movement of the four vertex clamping members 9 can also clamp the mold 4 on the operating support part to increase the height.

[0046] Furthermore, the support plate 6 also has a guide groove 601 , and the vertex clamping piece 9 is movably arranged in the guide groove 601 , and the length direction of the guide groove 601 is arranged along the diagonal line of the mold 4 .

[0047] Furthermore, it also includes: an elastic member 11, two ends of the elastic member 11 are respectively connected to the support plate 6 and the vertex clamping member 9, the elastic member 11 is located in the guide groove 601, and the elastic member 11 provides a force for the four vertex clamping members 9 to approach each other.

[0048] In this embodiment, a guide groove 601 for the vertex clamping member 9 to move is further opened on the support plate 6 and is arranged along the diagonal line of the mold 4. This is also convenient for the vertex clamping member 9 to act on the four corners of the bottom of the mold 4. At the same time, an elastic member 11 is installed in the guide groove 601 to provide force for the four vertex clamping members 9 to approach each other, so that the mold 4 can be stably clamped and reset after adapting to the action of the guide push member 10.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A production line for multi-product processing, characterized in that: include: Equipment Line (1); A three-dimensional warehouse (2), the three-dimensional warehouse (2) being arranged stationary relative to the equipment line (1), the three-dimensional warehouse (2) having a plurality of warehouse locations (201); Two limiting plates (3), both limiting plates (3) being movably arranged in the storage position (201), forming a limiting area (301) between the two, and the two limiting plates (3) moving closer to or farther from each other, so as to limit the mold (4) within the limiting area (301); A palletizer (5), the palletizer (5) being movably arranged relative to the three-dimensional warehouse (2), the palletizer (5) comprising an operation support portion (501), and after the palletizer (5) moves, the operation support portion (501) is used to push the two limit plates (3) and support the transfer of the mold (4).

2. A multi-product processing production line according to claim 1, characterized in that: Also includes: A support plate (6), the support plate (6) being fixedly arranged at the bottom of the storage position (201), the two ends of the support plate (6) respectively passing through the two limit plates (3), the limit plate (3) being movably arranged on the support plate (6), and the limit area (301) being formed between the two limit plates (3) and the support plate (6); A scissor-type frame (7), wherein two ends of the scissor-type frame (7) are respectively connected to the two limit plates (3).

3. A multi-product processing production line according to claim 2, characterized in that: The operation support portion (501) has a rack (502), the scissor-type frame (7) is located below the support plate (6), and the scissor-type frame (7) has a central gear portion (701), and the central gear portion (701) passes through the support plate (6) and is located in the limiting area (301). After the operation support portion (501) moves, the rack (502) engages with or cancels engagement with the central gear portion (701), so as to push the two limiting plates (3) through the scissor-type frame (7).

4. A multi-product processing production line according to claim 2, characterized in that: Also includes: A top plate (8), the top plate (8) being arranged on the limiting plate (3), and after the limiting plate (3) moves, the top plate (8) is used to release the limiting of the top of the mold (4); Four vertex clamping members (9), the four vertex clamping members (9) are all movably arranged on the support plate (6) and are all located at the bottom of the limiting area (301); the four vertex clamping members (9) move closer to or farther from each other after movement, so as to release the limiting of the bottom of the mold (4).

5. A production line for multi-product processing according to claim 4, characterized in that: The four vertex clamping members (9) are arranged along a matrix, the vertex clamping members (9) have a guiding inclined surface (901), and the limiting plate (3) has a guiding pushing member (10). After the two limiting plates (3) move away from each other, they first drive the top plate (8) to release the limiting effect on the top of the mold (4), and then push the guiding inclined surface (901) through the guiding pushing member (10).

6. A production line for multi-product processing according to claim 5, characterized in that: There are two guide pushers (10), each of which is located between two adjacent vertex clamping members (9). The guide pusher (10) is triangular in shape, and the top of the guide pusher (10) and the top of the guide inclined surface (901) are both lower than the top of the operation support portion (501).

7. A production line for multi-product processing according to claim 4, characterized in that: The vertex clamping piece (9) has a right-angled limiting surface (902) and a downwardly sliding inclined surface (903); the downwardly sliding inclined surface (903) is located below the right-angled limiting surface (902); the bottom surface of the downwardly sliding inclined surface (903) is higher than the top surface of the operating support portion (501); and after the four vertex clamping pieces (9) are moved away from each other, they are used to release and slide the mold (4) down onto the operating support portion (501).

8. A production line for multi-product processing according to claim 4, characterized in that: The support plate (6) further comprises a guide groove (601), the vertex clamping piece (9) is movably arranged in the guide groove (601), and the length direction of the guide groove (601) is arranged along the diagonal line of the mold (4).

9. A production line for multi-product processing according to claim 8, characterized in that: Also includes: An elastic member (11), wherein two ends of the elastic member (11) are respectively connected to the support plate (6) and the vertex clamping member (9), and the elastic member (11) is located in the guide groove (601), and the elastic member (11) provides a force for bringing the four vertex clamping members (9) closer to each other.

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