Automatic material blending and mixing production line

Abstract

An automatic mixing production line belongs to the technical field of mixing and batching, and comprises a feeding and batching part, a batching lifting goods elevator, a material primary mixing part, a primary mixing lifting goods elevator, a material compound mixing part, a finished product lifting goods elevator and a press production line feeding part which are arranged in sequence, the feeding and burdening part is connected with the material primary mixing part through a burdening lifting goods elevator, the material primary mixing part is connected with the material compound mixing part through a primary mixing lifting goods elevator, and the material compound mixing part is connected with the press production line feeding part through a finished product lifting goods elevator. Through improvement of the whole production process and matching of equipment, the processes of automatic batching, material mixing, press feeding and the like can be realized, and meanwhile, the material mixing uniformity, the product quality and the qualification rate are improved, so that the phenomenon of material waste is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of mixed ingredients, in particular to the mixing of powdered materials, and specifically to an automatic mixing production line. Background Art

[0002] The mixing and formulation of powdered materials (such as powdered metals, chemical raw materials, etc.) have their own particularities, such as the use of very small amounts of auxiliary materials (the amount of auxiliary materials used is less than 1% of the main material), and chemical reactions will occur when multiple auxiliary materials are mixed at the same time.

[0003] The original production process has high labor intensity, low production precision and low production capacity. The original mixing process is to add all the materials into the mixer and mix the heavier main materials with a small amount of auxiliary materials. Due to the small proportion of auxiliary materials, the mixing time can only be increased to ensure the uniformity of the mixing. At the same time, due to the fine mesh of the auxiliary materials, dust is easily generated, or attached to the silo wall, causing the loss of materials, resulting in changes in the mixing ratio or uneven mixing. During the unloading process of the mixer, some materials are segregated at the front and end of the unloading. During the production process, the materials at the front and end need to be removed, and only the materials in the middle unloading section are used, which affects the unqualified composition of the finished pressed parts, increases the unqualified rate of the products, and causes serious waste of raw materials. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an automatic compounding production line. By improving the entire production process and selecting equipment, it is possible to realize automated batching, mixing, press loading and other processes, while improving the uniformity of material mixing, product quality and pass rate, thereby avoiding the occurrence of material waste.

[0005] The technical solution adopted by the present invention is: an automatic compounding production line, including a feeding and batching part, a batching lifting freight elevator, a material primary mixing part, a primary mixing lifting freight elevator, a material compounding part, a finished product lifting freight elevator and a press production line feeding part arranged in sequence; The loading and batching part is connected to the material primary mixing part through the batching lifting freight elevator, the material primary mixing part is connected to the material compound mixing part through the primary mixing lifting freight elevator, and the material compound mixing part is connected to the loading part of the press production line through the finished product lifting freight elevator.

[0006] Furthermore, the feeding and batching part includes a main material hoisting electric hoist and support, a main material feeding device and an auxiliary material feeding device arranged on the upper platform, a batching transfer hopper arranged on the lower platform, and a mobile material receiving trolley carrying the batching transfer hopper; The main material feeding device and the auxiliary material feeding device are docked with the material transfer hopper through a discharge docking sealing assembly arranged thereunder, and a track is arranged below the mobile material receiving trolley.

[0007] Furthermore, the main material feeding device comprises a main material storage bin and a main material metering hopper assembly connected via an electromagnetic vibration feeder, and a discharge docking sealing assembly is connected below the main material metering hopper assembly; The main material metering hopper components are provided with two, which are respectively connected to two and four main material storage bins.

[0008] Furthermore, the auxiliary material feeding device comprises an auxiliary material storage bin and an auxiliary material weighing and metering bucket assembly connected via a screw conveyor, and a discharge docking sealing assembly is connected below the auxiliary material weighing and metering bucket assembly; The auxiliary material weighing and metering bucket components are arranged in 4 to 6 numbers, and are respectively connected to 1 to 2 auxiliary material storage bins.

[0009] Furthermore, the auxiliary material storage bin is also connected to a vacuum suction machine, which is connected to an auxiliary material ton bag or an auxiliary material dust-free delivery station; and a pneumatic vibration device is arranged on the side of the discharge chute of the auxiliary material weighing and metering bucket assembly.

[0010] Furthermore, the material initial mixing part includes a special material temporary storage bin, a special material preparation tank, and an ethanol temporary storage bin arranged on the upper platform, a vacuum drying double-cone mixer arranged on the middle platform, a mixer feeding chute arranged above the vacuum drying double-cone mixer, a primary mixed material screening machine arranged below the vacuum drying double-cone mixer, an ethanol liquid adding recovery device, a primary mixed material transfer bucket arranged on the bottom platform, and a primary mixed material receiving station conveyor carrying the primary mixed material transfer bucket, and a track is arranged under the primary mixed material receiving station conveyor.

[0011] Furthermore, the ethanol liquid adding and recovering device comprises a special liquid weight loss scale, a metering pump, an ethanol secondary filtering component, an ethanol condenser and an ethanol recovery tank, wherein the special liquid weight loss scale is connected to the metering pump, and the ethanol condenser is connected to a refrigerator and a vacuum pump station; The vacuum drying double cone mixer is connected to a mold temperature controller, a metering pump, and an ethanol secondary filtering component.

[0012] Furthermore, the material compounding part includes a compounding and feeding mobile trolley arranged on the upper platform, a compounding mixer arranged on the middle platform, a filling station dust collecting hood connected to the compounding mixer, a finished product barrel arranged on the lower platform and connected to the compounding mixer via the filling station dust collecting hood, a filling station chain conveyor carrying the finished product barrel, and a roller conveyor carrying the filling station chain conveyor.

[0013] Furthermore, the loading part of the press production line includes a finished product barrel conveyor arranged on the upper platform, an intelligent forklift, a press unloading station bracket, an automatic valve opening mechanism and a press arranged on the lower platform.

[0014] The beneficial effects of the present invention are as follows: by improving the entire production process and selecting equipment, automated batching, mixing, press loading and other processes can be achieved, while improving the uniformity of material mixing, product quality and pass rate, thereby avoiding the occurrence of material waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a structural diagram of the feeding and batching parts; Figure 3 It is a structural diagram of the initial mixing part of the materials; Figure 4 It is a structural schematic diagram of an ethanol liquid addition recovery device; Figure 5 It is a structural schematic diagram of the material compound part; Figure 6 It is the feeding part of the press production line; In the attached figure: A is the feeding and batching part, B is the material initial mixing part, B-1 is the ethanol liquid adding recovery device, C is the material compounding part, D is the loading part of the press production line, 1 is the main material lifting electric hoist, 2 is the main material storage bin, 3 is the electromagnetic vibration feeder, 4 is the main material metering hopper assembly, 5 is the unloading docking sealing assembly, 6 is the main material incoming ton bag, 7 is the mobile material receiving trolley, 8 is the auxiliary material ton bag, 9 is the auxiliary material dust-free delivery station, 10 is the auxiliary material storage bin, 11 is the screw conveyor, 12 is the vacuum suction machine, 13 is the auxiliary material weighing and metering hopper assembly, 13-1 is the unloading chute, 13-2 is the air vibration device, 14 is the batching transfer hopper, 15 is the batching lifting freight elevator, 17 is the mixer feeding chute, 18 is the vacuum drying double cone mixer, 19 is the primary mixed material screening machine, 20 is the conveyor for the primary mixed material receiving station, 21 is the mold temperature controller, 22 is the refrigerator, 23 is the vacuum pump station, 24 is the temporary storage warehouse for special materials, 25 is the special material preparation tank, 26 is the temporary storage warehouse for ethanol, 27 is the special liquid loss-in-weight scale, 28 is the metering pump, 29 is the ethanol secondary filtration component, 30 is the ethanol condenser, 31 is the ethanol recovery tank, 33 is the transfer bucket for carrying primary mixed materials, 34 is the primary mixing lifting freight elevator, 35 is the mobile trolley for compound mixing and feeding, 36 is the compound mixing machine, 37 is the dust collection cover for the sub-packaging station, 38 is the chain conveyor for the sub-packaging station, 39 is the roller conveyor, 40 is the finished product lifting freight elevator, 41 is the finished product barrel conveyor, 42 is the intelligent forklift, 43 is the press unloading station bracket, 44 is the automatic valve opening mechanism, 45 is the press, and 46 is the finished product barrel. DETAILED DESCRIPTION

[0016] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0017] See attached Figure 1-6 , an automatic compounding production line, comprising a feeding and batching part A, a batching lifting cargo elevator 15, a material primary mixing part B, a primary mixing lifting cargo elevator 34, a material compounding part C, a finished product lifting cargo elevator 40 and a press production line feeding part D arranged in sequence; The loading and batching part A is connected to the material primary mixing part B through the batching lifting freight elevator 15, the material primary mixing part B is connected to the material compounding part C through the primary mixing lifting freight elevator 34, and the material compounding part C is connected to the loading part D of the press production line through the finished product lifting freight elevator 40.

[0018] The feeding and batching part A includes a main material hoisting electric hoist 1 and a support, a main material feeding device and an auxiliary material feeding device arranged on the upper platform, a batching transfer hopper 14 arranged on the lower platform and a mobile material receiving trolley 7 carrying the batching transfer hopper 14; The main material feeding device and the auxiliary material feeding device are docked with the material transfer hopper 14 through the unloading docking sealing assembly 5 arranged thereunder, and a track is arranged below the mobile material receiving trolley 7.

[0019] The main material feeding device comprises a main material storage bin 2 and a main material metering hopper assembly 4 connected via an electromagnetic vibration feeder 3, and a discharge docking sealing assembly 5 is connected below the main material metering hopper assembly 4; The main material metering hopper assemblies 4 are provided with two, which are respectively connected to two and four main material storage bins 2.

[0020] The auxiliary material feeding device comprises an auxiliary material storage bin 10 and an auxiliary material weighing and metering bucket assembly 13 connected via a screw conveyor 11, and the auxiliary material weighing and metering bucket assembly 13 is connected below with a discharge docking sealing assembly 5; The auxiliary material weighing and metering bucket assemblies 13 are provided in 4 to 6 numbers, and are respectively connected to 1 to 2 auxiliary material storage bins 10 .

[0021] The auxiliary material storage bin 10 is also connected to a vacuum suction machine 12, and the vacuum suction machine 12 is connected to an auxiliary material ton bag 8 or an auxiliary material dust-free delivery station 9; a pneumatic vibration device 13-2 is arranged on the side of the discharge chute 13-1 of the auxiliary material weighing and metering bucket assembly 13.

[0022] The material initial mixing part B includes a special material temporary storage bin 24, a special material preparation tank 25, and an ethanol temporary storage bin 26 arranged on the upper platform, a vacuum drying double-cone mixer 18 arranged on the middle platform, a mixer feeding chute 17 arranged above the vacuum drying double-cone mixer 18, a primary mixed material screening machine 19 arranged below the vacuum drying double-cone mixer 18, an ethanol liquid adding recovery device B-1, a primary mixed material transfer bucket 33 arranged on the bottom platform, and a primary mixed material receiving station conveyor 20 carrying the primary mixed material transfer bucket 33, and a track is arranged under the primary mixed material receiving station conveyor 20.

[0023] The ethanol liquid adding recovery device B-1 includes a special liquid weight loss scale 27, a metering pump 28, an ethanol secondary filter assembly 29, an ethanol condenser 30 and an ethanol recovery tank 31, wherein the special liquid weight loss scale 27 is connected to the metering pump 28, and the ethanol condenser 30 is connected to the refrigerator 22 and the vacuum pump station 23; The vacuum drying double cone mixer 18 is connected to a mold temperature controller 21 , a metering pump 28 , and an ethanol secondary filtering component 29 .

[0024] The material compounding part C includes a compounding and feeding mobile trolley 35 arranged on the upper platform, a compounding mixer 36 arranged on the middle platform, a filling station dust collecting hood 37 connected to the compounding mixer 36, a finished product barrel 46 arranged on the lower platform and connected to the compounding mixer 36 via the filling station dust collecting hood 37, a filling station chain conveyor 38 carrying the finished product barrel 46, and a roller conveyor 39 carrying the filling station chain conveyor 38.

[0025] The loading part D of the press production line includes a finished product barrel conveyor 41 arranged on the upper platform, an intelligent forklift 42, a press unloading station bracket 43, an automatic valve opening mechanism 44 and a press 45 arranged on the lower platform.

[0026] The mixing production method of the present invention adopts automatic control for formula metering, material conveying, material mixing and press loading, thus realizing unmanned production.

[0027] The feeding part in the feeding and batching part A can be fed by automatic conveying to achieve sealed conveying, which reduces the labor intensity, reduces dust generation, improves the workshop environment, and protects the health of employees. In the batching part, the required production formula is manually selected, and the program automatically controls the equipment to weigh and transport the materials, which improves the speed and accuracy of batching and reduces the error rate. Through automatic transportation and precise positioning, the labor intensity is reduced.

[0028] For special materials that improve product quality, separate ingredients are prepared. Taking advantage of the volatile nature of ethanol, the powder is dissolved in ethanol and added into the mixer in liquid form for mixing.

[0029] In the initial mixing part, a new process has been developed to improve the mixing effect and uniformity of the materials, the segmented-wet mixing process, which divides the material mixing process into two steps, initial mixing and wet mixing.

[0030] The primary mixer adopts a vacuum drying conical mixer 18, and the barrel is jacketed, which can heat the materials inside the barrel; the central axis of the mixer is a hollow central axis with a double-tube structure. The outer thick tube is used for vacuuming. A sintered mesh filter element is installed on the top of the inner tube of the barrel to prevent dust from entering the pipeline during vacuuming. At the same time, the outer tube of the mixer is connected to a back-blowing air bag to back-blow the filter element in the barrel and clean it. The inner thin tube is a liquid spraying pipeline. Three spray heads are installed on the top of the thin tube in the barrel. The liquid transported into the mixer is sprayed and evenly dispersed on the material, which improves the uniform contact between the liquid and all materials and improves the uniformity of material mixing. The double-tube structure in the mixer always remains above the conical mixer in the barrel and does not rotate with the barrel. The liquid nozzle is always kept to spray the liquid on the material being stirred and mixed below.

[0031] The batching transfer hopper 14 is connected to the mixer feeding chute 17, and the main material and auxiliary material are respectively unloaded into the vacuum drying conical mixer 18 for mixing; the special material and ethanol in the special material temporary storage bin 24 and the ethanol temporary storage bin 26 are mixed into the special material of liquid by the special material preparation tank 25, and then stored in the special liquid weight loss scale 27 to wait for addition, the mixer is premixed for 10 minutes, and then the special material is quantitatively transported by the metering pump 28, and the liquid is evenly sprayed into the vacuum drying conical mixer 18 through the atomizing nozzle, and evenly adhered to the material. After the spraying is completed, continue to mix for 15 minutes to allow the liquid material to contact the material evenly. While wet mixing, the heat transfer oil in the jacket of the vacuum drying conical mixer 18 is heated to 40°C by the mold temperature controller 21. After 15 minutes, the vacuum pump group is started to evacuate the mixer, and the ethanol injected into the mixer is recovered by utilizing the volatile characteristics of ethanol. The special material separated from the ethanol is adsorbed by the material through heating, and it is not easy to separate. When the vacuum degree in the mixer reaches -0.09Mpa, stop vacuuming and the step-by-step wet mixing process is completed. The whole process is segmented and the trace materials are added evenly in the form of spray, which improves the accuracy and uniformity of the trace materials. The trace materials are adhered to the materials through the dissolution of ethanol liquid, avoiding the dust of trace material powder during material unloading or transportation, and improving the quality of the product.

[0032] The materials after primary mixing are filtered by the primary mixing material screening machine 19, the agglomerated materials in the materials are removed, and the qualified materials enter the primary mixing material transfer bucket 33, and are transferred to the material compounding part C by means of the primary mixing lifting elevator 34 for secondary mixing. The segregation effect of material screening is eliminated, the quality of the mixed materials is improved, and the quality of the product is effectively controlled.

[0033] The mixed qualified materials are transferred into the finished product barrel 46 through the sub-packaging station. According to the actual production conditions, a batch of mixed materials may be divided into 4 to 5 barrels, and the divided barrels are waiting to be used in the press station.

[0034] At the loading part D of the press production line, the finished barrels 46 that have been packaged and qualified are transferred to the temporary storage area of ​​the finished barrels 46 by the intelligent forklift 42, waiting for the material request signal of the press production line 45. When the low material level in the storage bin of the press 45 detects the material level bottom line, an alarm is issued, and the automatic control program sends a command to the intelligent forklift 42, and the intelligent forklift 42 goes to the temporary storage area of ​​the finished barrels 46 to take the barrels, and automatically controls the delivery to the press production line 45, and places it on the press unloading station bracket 43. After the material request station detects that the finished barrels 46 are in place, the program controls the automatic door opening mechanism 44 to open the outlet valve of the finished barrels 46 and unload them into the hopper of the press 45.

[0035] The entire production process can realize automated batching, mixing, press loading and other processes. At the same time, the use of a segmented-wet mixing process improves the uniformity of material mixing, improves product quality and pass rate, and reduces material waste.

[0036] In the specific implementation of the present invention, the materials are divided into two categories, main materials and auxiliary materials, according to the difference between the main and secondary materials in the formula. The main materials account for a larger proportion of the production formula, nearly more than 93%, and the remaining proportion is filled by auxiliary materials.

[0037] All materials are packaged differently. The main materials are more, and there are many forms of ton bags. The auxiliary materials are packaged in two forms: ton bags and small bags. There are many corresponding ways of loading. The main materials are directly hoisted by a crane for feeding, and the auxiliary materials can be fed manually and vacuum conveyed.

[0038] According to the material silo request signal, use a barcode scanner to scan and confirm the material information, the corresponding silo indicator light will light up, and the access control system will be turned on to allow manual feeding.

[0039] Corresponding to the mixing process of wet mixing, it is necessary to add ethanol special material spray for batching and mixing. The special material is hoisted onto the batching steel platform by a crane, manually added to the special material temporary storage bin 24 for storage, and ethanol is manually transferred from the ethanol barrel to the ethanol temporary storage bin 26, and the loading of special materials and ethanol is completed. According to the requirements of the ratio of special materials and ethanol, the special material is quantitatively transported to the special material preparation tank 25 through the feeding screw, and ethanol is added to the special material preparation tank 25 in proportion according to the weighing weight of the binder. The special material preparation tank 25 stirs and runs at high speed to dissolve the special material in the ethanol liquid. The mixed liquid in the special material preparation tank 25 is divided into the special liquid weight loss scale 27 for the mixer to add liquid, and waits for the mixer to add liquid instruction.

[0040] While the vacuum drying conical mixer 18 is mixing, the mold temperature controller 21 circulates the heating oil in the jacket of the vacuum drying conical mixer, heats the vacuum drying conical mixer, and after the temperature reaches about 40 degrees, the volatilization of ethanol is accelerated. Start the vacuum pump, vacuum recovery ethanol in the mixer, the vacuum degree in the mixer reaches more than -0.09Mpa, and the recovery of ethanol is accelerated. After filtering by the ethanol secondary filter assembly 29, the refrigerator 22 is started, and the ethanol condenser 30 recovers the ethanol gas collected by vacuum by heat exchange condensation. The ethanol condensed into liquid is collected in the ethanol recovery tank 31, and each ethanol recovery can reach a recovery rate of 80%. The ethanol in the ethanol recovery tank 31 is returned to the ethanol temporary storage warehouse 26 by the gear pump, and after falling to the lower limit of the liquid level gauge, the transportation is stopped, and the remaining ethanol is used for the next transportation pipeline cleaning.

[0041] Finally, 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 aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic compounding production line, characterized in that: It includes a feeding and batching part (A), a batching lifting freight elevator (15), a material initial mixing part (B), a primary mixing lifting freight elevator (34), a material compounding part (C), a finished product lifting freight elevator (40) and a press production line feeding part (D) which are arranged in sequence; The loading and batching part (A) is connected to the material primary mixing part (B) via the batching lifting freight elevator (15), the material primary mixing part (B) is connected to the material compounding part (C) via the primary mixing lifting freight elevator (34), and the material compounding part (C) is connected to the loading part (D) of the press production line via the finished product lifting freight elevator (40).

2. The automatic compounding production line according to claim 1, characterized in that: The feeding and batching part (A) comprises a main material hoisting electric hoist (1) and a main material feeding device and an auxiliary material feeding device supported and arranged on the upper platform, a batching transfer hopper (14) arranged on the lower platform, and a mobile material receiving trolley (7) carrying the batching transfer hopper (14); The main material feeding device and the auxiliary material feeding device are docked with the material transfer hopper (14) via a discharge docking sealing assembly (5) provided below the main material feeding device and the auxiliary material feeding device, and a track is provided below the mobile material receiving trolley (7).

3. The automatic compounding production line according to claim 2, characterized in that: The main material feeding device comprises a main material storage bin (2) and a main material metering hopper assembly (4) connected via an electromagnetic vibration feeder (3); a discharge docking sealing assembly (5) is connected below the main material metering hopper assembly (4); Two main material metering hopper assemblies (4) are provided, which are respectively connected to two and four main material storage bins (2).

4. The automatic compounding production line according to claim 2, characterized in that: The auxiliary material feeding device comprises an auxiliary material storage bin (10) and an auxiliary material weighing and metering bucket assembly (13) connected via a screw conveyor (11); the auxiliary material weighing and metering bucket assembly (13) is connected below to a discharge docking sealing assembly (5); The auxiliary material weighing and metering bucket assemblies (13) are provided in 4 to 6 numbers, and are respectively connected to 1 to 2 auxiliary material storage bins (10).

5. The automatic compounding production line according to claim 4, characterized in that: The auxiliary material storage bin (10) is also connected to a vacuum suction machine (12), and the vacuum suction machine (12) is connected to an auxiliary material ton bag (8) or an auxiliary material dust-free delivery station (9); a gas vibration device (13-2) is provided on the side of the discharge chute (13-1) of the auxiliary material weighing and metering hopper assembly (13).

6. The automatic compounding production line according to claim 1, characterized in that: The material initial mixing part (B) comprises a special material temporary storage bin (24) arranged on the upper platform, a special material preparation tank (25), an ethanol temporary storage bin (26), a vacuum drying double cone mixer (18) arranged on the middle platform, a mixer feeding chute (17) arranged above the vacuum drying double cone mixer (18), a primary mixed material screening machine (19) arranged below the vacuum drying double cone mixer (18), an ethanol liquid adding recovery device (B-1), a primary mixed material transfer bucket (33) arranged on the bottom platform, and a primary mixed material receiving station conveyor (20) carrying the primary mixed material transfer bucket (33), wherein a track is arranged below the primary mixed material receiving station conveyor (20).

7. The automatic compounding production line according to claim 6, characterized in that: The ethanol liquid adding and recovering device (B-1) comprises a special liquid weight loss scale (27), a metering pump (28), an ethanol secondary filtering component (29), an ethanol condenser (30) and an ethanol recovery tank (31), wherein the special liquid weight loss scale (27) is connected to the metering pump (28), and the ethanol condenser (30) is connected to a refrigerator (22) and a vacuum pump station (23); The vacuum drying double cone mixer (18) is connected to a mold temperature controller (21), a metering pump (28), and an ethanol secondary filtering component (29).

8. The automatic compounding production line according to claim 1, characterized in that: The material compounding part (C) comprises a compounding and feeding mobile trolley (35) arranged on the upper platform, a compounding mixer (36) arranged on the middle platform, a sub-packaging station dust collecting hood (37) connected to the compounding mixer (36), a finished product barrel (46) arranged on the lower platform and connected to the compounding mixer (36) via the sub-packaging station dust collecting hood (37), a sub-packaging station chain conveyor (38) carrying the finished product barrel (46), and a roller conveyor (39) carrying the sub-packaging station chain conveyor (38).

9. The automatic compounding production line according to claim 1, characterized in that: The loading part (D) of the press production line comprises a finished product barrel conveyor (41) arranged on the upper platform, an intelligent forklift (42), a press unloading station bracket (43), an automatic valve opening mechanism (44), and a press (45) arranged on the lower platform.

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