bending machine

Abstract

The application discloses a kind of pressing curve machines in the technical field of block making equipment, it includes mainframe, mould box tow chain assembly and control module, mould box tow chain assembly includes annular tow chain, multiple mould box pieces are equipped with outside annular tow chain, feed mechanism, pressing forming mechanism and out curve conveying mechanism are installed on mainframe, the above-mentioned pressing forming mechanism includes pressing mould upper die group and push-out component, lower mould plate is equipped with in annular tow chain, the above-mentioned out curve conveying mechanism is arranged in the lower side of the push-out end of push-out component in the above-mentioned annular tow chain inner ring, and cleaning mechanism is equipped between pressing forming mechanism and annular tow chain, cleaning mechanism includes cleaning frame, cleaning frame is equipped with scraper, when annular tow chain circulates rotation, the lower end surface of scraper and the upper end surface of the mould box piece that passes are slidably attached, the upper side of pressing mould lower mould plate and the lower end surface of the mould box piece that passes are slidably attached.The pressing curve machine can clean the pressing end of pressing forming mechanism, effectively improve the cleanliness of equipment and the quality of block.

Description

Technical Field

[0001] This invention relates to the field of equipment for making koji blocks, and more particularly to a koji pressing machine. Background Technology

[0002] In the brewing process of Maotai-flavor liquor, Maotai-flavor Daqu (a type of starter culture) plays a crucial role in saccharification, fermentation, aroma development, and grain feeding. Its quality is one of the important factors affecting the yield and quality of Maotai-flavor liquor. Maotai-flavor Daqu is made from wheat and mother koji (a type of starter culture). After adding water and mixing the ingredients, it is manually pressed into bundles of koji, which are then placed in a fermentation room separated by straw. After about 40 days of fermentation, it is stored for 3-6 months. The manual pressing of koji not only consumes a lot of manpower and time, resulting in high labor costs, but also makes the quality of the koji blocks susceptible to the influence of the operators, leading to poor stability and making it difficult to meet the needs of large-scale production.

[0003] Chinese patent application CN216544869U, entitled "An Automatic Feeding Bionic Compression Machine," includes a compression block conveying component, a delay mechanism, a cam assembly, and a compression component. The compression block conveying component includes a conveyor chain, a mold box, and a receiving box. The delay mechanism includes a drive crank wheel, a multi-grooved wheel, and a fixed bearing seat. The cam assembly includes a variable-speed cam, cam rollers, and cam connecting rods. The compression component includes a compression cam, a compression spring, a compression mold, and a compression rod. While it replaces the drive structure to avoid the potential pollution risks to the compression material and the environment associated with hydraulic transmission systems, it lacks a cleaning mechanism for the compression component. During compression, raw materials inevitably adhere to the component, increasing the difficulty of subsequent cleaning and increasing the risk of contamination from any loose material falling off and contaminating subsequent compression blocks. Therefore, if the above-mentioned pressing machine wants to reduce the probability of the koji blocks being contaminated, it can only stop the machine regularly to replace the pressing parts or stop the machine regularly to clean the pressing parts. Both of these methods will affect the efficiency of the pressing machine. Summary of the Invention

[0004] To overcome the above-mentioned shortcomings of the prior art, the technical problem to be solved by the present invention is: how to clean the pressing mechanism to a certain extent without affecting the operation of the pressing machine.

[0005] The technical solution adopted by this invention to solve its technical problem is: A koji pressing machine includes a main frame, a mold box drag chain assembly mounted on the main frame, and a control module. The mold box drag chain assembly includes a ring drag chain that circulates on the main frame. Multiple mold box components are sequentially arranged circumferentially on the outer side of the ring drag chain. A feeding mechanism, a pressing and forming mechanism, and a koji discharge conveying mechanism are sequentially mounted on the main frame from the beginning to the end of the ring drag chain. The mold box drag chain assembly, the feeding mechanism, the pressing and forming mechanism, and the koji discharge conveying mechanism are all electrically connected to the control module. The pressing and forming mechanism includes an upper die module and an ejection assembly, both longitudinally slidably mounted on the main frame. A lower die template, fixedly connected to the main frame and located directly below the upper die module, is threaded through the inner ring drag chain. The upper module is used to pass through the corresponding mold box and press with the lower template of the mold to form a curved block. The above-mentioned curved block conveying mechanism is installed in the inner ring of the above-mentioned annular drag chain and is located directly below the ejection end of the ejection component. The ejection component is used to push the curved block in the corresponding mold box into the curved block conveying mechanism. A cleaning mechanism is provided between the pressing and forming mechanism and the annular drag chain. The cleaning mechanism includes a cleaning frame that is slidably installed on the main frame along the direction from the beginning to the end of the above-mentioned annular drag chain. The cleaning frame is equipped with a scraper. The central axis of the scraper is perpendicular to the sliding direction of the cleaning frame. When the annular drag chain rotates in a cycle, the lower end face of the scraper slides and fits against the upper end face of the mold box that passes through, and the upper side of the lower template of the mold slides and fits against the lower end face of the mold box that passes through.

[0006] Furthermore, the aforementioned pressing and molding mechanism includes a fixed frame that is fixedly installed on the main frame. A molding electric cylinder that is electrically connected to the aforementioned control module is installed on the fixed frame. The telescopic end of the molding electric cylinder is connected to a pressing mold frame. The upper pressing mold module and the ejection component are sequentially installed on the lower side of the pressing mold frame along the direction from the first end to the last end of the annular drag chain.

[0007] Furthermore, the aforementioned mold box includes a unit box installed on the outside of the annular cable chain, and at least two shaping rings are fixedly provided inside the unit box, with multiple shaping rings arranged sequentially along the width direction of the annular cable chain.

[0008] Furthermore, the aforementioned upper mold assembly includes a mounting frame fixedly installed on the mold frame and unit mold assemblies. The longitudinal central axis of the mounting frame is perpendicular to the direction from the first end to the last end of the annular drag chain. The unit mold assemblies are adaptively telescopically connected to the mounting frame along the longitudinal central axis of the mounting frame via elastic elements. The number of unit mold assemblies in a single upper mold assembly is equal to and corresponds one-to-one with the number of shaping rings in a single mold box. The aforementioned ejection assembly includes unit ejectors that are equal in number and correspond one-to-one with the shaping rings in a single mold box. Each unit ejector includes an ejector rod fixedly installed on a fixed frame. The free end of the ejector rod is fixedly connected to an ejector block for passing through the corresponding shaping ring.

[0009] Furthermore, the aforementioned mounting frame includes a mounting plate, and the aforementioned unit molding assembly includes a sliding guide rod that slides longitudinally through the mounting plate. One end of the sliding guide rod located inside the mounting frame is connected to a first abutment block, and the other end is fixedly connected to a molding component. The molding component can slide through the corresponding shaping ring. A second abutment block is fixedly connected to the outer side of the sliding guide rod near the molding component. The aforementioned elastic element is a molding buffer spring sleeved on the aforementioned sliding guide rod. One end of the molding buffer spring abuts against the mounting plate, and the other end abuts against the second abutment block.

[0010] Furthermore, there are multiple upper modules on the aforementioned mold, which are sequentially arranged on the mold frame from the beginning to the end of the annular drag chain. The distance between the central axes of any two adjacent upper modules is equal to the distance between the central axes of any two adjacent mold pieces.

[0011] Furthermore, there are multiple scrapers, which are arranged sequentially at equal intervals from the beginning to the end of the annular cable chain. The wall thickness of any of the aforementioned mold components is more than twice the thickness of the scraper, and the distance between the central axes of any two adjacent scrapers is equal to the width of the mold component.

[0012] Furthermore, the aforementioned output conveying mechanism includes a fixed base fixedly mounted on the main frame. Above the fixed base is a lifting assembly electrically connected to the control module. The lifting end of the lifting assembly is fixedly mounted with an output bracket. The output bracket is mounted with a conveyor belt electrically connected to the control module. The conveying direction of the conveyor belt is perpendicular to the direction of the output block on the annular drag chain. The lifting assembly includes a lifting plate and a first hinge frame and a second hinge frame that are hinged together in the middle. The upper end of the first hinge frame is hinged to the lifting plate, and the lower end is slidably mounted on the fixed base. The upper end of the second hinge frame is slidably mounted on the lower side of the lifting plate, and the lower end is hinged to the fixed base. The fixed base is equipped with an output lifting cylinder electrically connected to the control module. The telescopic end of the output lifting cylinder is connected to the first hinge frame and is used to drive the first hinge frame to slide back and forth along the direction of the width axis of the fixed base.

[0013] Furthermore, the aforementioned feeding mechanism includes a feeding electric cylinder fixedly mounted on the main frame and electrically connected to the aforementioned control module, and a quantitative box body slidably mounted on the main frame along the direction from the beginning to the end of the annular drag chain. The telescopic end of the feeding electric cylinder is fixedly connected to the side of the quantitative box body away from the aforementioned pressing and forming mechanism. The quantitative box body is longitudinally provided with feeding channels. The number of the feeding channels is equal to the number of shaping rings in a single mold box and is arranged in a one-to-one correspondence. The main frame is fixedly mounted with a feeding buffer hopper located above the quantitative box body through a load-bearing frame. The feeding buffer hopper's discharge end face slides against the upper side of the quantitative box body. The feeding electric cylinder is used to drive the quantitative box body to slide back and forth along the annular drag chain from the beginning to the end, thereby synchronously controlling the flow rate of the feed buffer hopper into multiple feeding channels.

[0014] Furthermore, the aforementioned feeding mechanism also includes a pair of spaced slide rails located between the main frame and the metering box, each slide rail having two sliders in sliding engagement, and all four sliders being fixedly installed below the metering box; the aforementioned load-bearing frame is provided with a protective plate on its ring side, and the aforementioned feeding electric cylinder passes through the protective plate adjacent to it.

[0015] The beneficial effects of this invention are: This koji press utilizes the action rhythm of the pressing and forming mechanism to set up a cleaning mechanism. This cleaning mechanism is located between the pressing and forming mechanism and the mold box drag chain assembly. On the one hand, it can clean the pressing end of the pressing and forming mechanism to a certain extent. On the other hand, it can push the koji material remaining on the side of the previous mold box into the next mold box, improving the cleanliness of the pressing end of the pressing and forming mechanism. It also solves the problem of removing the residual koji material scraped off the pressing end, effectively improving the cleanliness of the equipment and thus improving the quality of the koji blocks. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the pressing machine of the present invention; Figure 2 This is one of the partial structural schematic diagrams of the koji press of the present invention; Figure 3 This is a schematic diagram of the pressing and forming mechanism in the pressing machine of the present invention; Figure 4 This is a schematic diagram of the cleaning mechanism in the pressing machine of the present invention; Figure 5 This is a schematic diagram of the mold box drag chain assembly in the creping machine of the present invention; Figure 6 This is the second partial structural schematic diagram of the pressing machine of the present invention; Figure 7 This is the third partial structural schematic diagram of the pressing machine of the present invention; Figure 8 This is the fourth partial structural schematic diagram of the pressing machine of the present invention; Figure 9 This is a schematic diagram of the koji outlet conveying mechanism in the koji press of the present invention; Figure 10 This is a schematic diagram of the feeding mechanism in the koji press of the present invention; The diagram is labeled as follows: 1-Feeding mechanism, 11-Feed buffer hopper, 12-Quantitative box, 13-Feeding electric cylinder, 14-Supporting frame, 15-Feeding channel, 16-Slide rail, 2-Pressure forming mechanism, 21-Forming electric cylinder, 22-Fixing frame, 23-Forming pressure bar, 24-Pressure mold frame, 25-Upper mold module, 251-Mounting frame, 2511-Mounting plate, 252-Unit mold assembly, 2521-Sliding guide rod, 2522-Pressure mold buffer spring, 2523-Pressure mold component, 2524-First abutment block, 2525-Second abutment block, 26-Sliding guide rod, 27-Lower mold plate, 28-Ejection. Components, 281-Unit ejector, 2811-Ejector rod, 2812-Ejector block, 3-Cleaning mechanism, 31-Cleaning frame, 32-Scraper, 33-Cleaning electric cylinder, 4-Outlet conveyor mechanism, 41-Outlet bracket, 42-Conveyor belt, 43-Outlet motor, 44-Lifting assembly, 441-Lifting plate, 442-First hinge frame, 443-Second hinge frame, 45-Fixed base, 46-Outlet lifting electric cylinder, 5-Mold box drag chain assembly, 51-Annular drag chain, 52-Mold box component, 521-Unit box, 522-Shaping ring, 6-Control panel, 7-Main frame, 8-Drive reducer, 9-Control module. Detailed Implementation

[0017] The invention will be further described below with reference to the accompanying drawings.

[0018] First, it should be stated that the terms "beginning end" and "end end" used in this application refer to... Figure 1 Based on the indicated orientation, the right side is the head end of the annular cable chain 51, and the left side is the tail end of the annular cable chain 51.

[0019] like Figures 1-10As shown, the pressing machine includes a main frame 7, a mold box drag chain assembly 5 and a control module 9 mounted on the main frame 7. The mold box drag chain assembly 5 includes an annular drag chain 51 that circulates on the main frame 7. Multiple mold box components 52 are sequentially arranged along the circumference of the annular drag chain 51. A feeding mechanism 1, a pressing and forming mechanism 2, and a pressing and conveying mechanism 4 are sequentially mounted on the main frame 7 from the beginning to the end of the annular drag chain 51. The mold box drag chain assembly 5, the feeding mechanism 1, the pressing and forming mechanism 2, and the pressing and conveying mechanism 4 are all electrically connected to the control module 9. The pressing and forming mechanism 2 includes an upper mold die 25 and an ejection assembly 28, both longitudinally sliding on the main frame 7. A lower mold die 27, fixedly connected to the main frame 7 and located directly below the upper mold die 25, is threaded through the annular drag chain 51. The upper module 25 is used to pass through the corresponding mold box 52 and press with the lower mold template 27 to form a curved block. The aforementioned curved block conveying mechanism 4 passes through the inner ring of the aforementioned annular cable chain 51 and is located directly below the ejection end of the ejection assembly 28. The ejection assembly 28 is used to push the curved block in the corresponding mold box 52 into the curved block conveying mechanism 4. A cleaning mechanism 3 is provided between the pressing and forming mechanism 2 and the annular cable chain 51. The cleaning mechanism 3 includes a cleaning frame 31 that slides on the main frame 7 along the direction from the beginning to the end of the aforementioned annular cable chain 51. The cleaning frame 31 is provided with a scraper 32. The central axis of the scraper 32 is perpendicular to the sliding direction of the cleaning frame 31. When the annular cable chain 51 rotates cyclically, the lower end face of the scraper 32 slides against the upper end face of the mold box 52 that it passes through, and the upper side of the lower mold template 27 slides against the lower end face of the mold box 52 that it passes through. The annular cable chain 51 is a specially designed cable chain with a ring-shaped structure. The annular cable chain 51 is composed of multiple links, and each link can rotate freely. The main frame 7 houses a drive reducer 8 electrically connected to the control module 9, which drives the annular drag chain 51 in cyclic motion. The control module 9 is a central processing unit (CPU), the core of a computer system for computation and control, and the final execution unit for information processing and program execution. The lower die template 27 is fixed to the main frame 7 by welding. A control panel 6 electrically connected to the CPU is installed on the main frame 7 for easy operation by staff. The main frame 7 is assembled from 304 stainless steel. A frame side plate is fixed to the outside of the main frame 7, which protects the internal mechanical structure to some extent and prevents external personnel from touching the motors and other operating mechanical structures, thus ensuring personnel safety. Preferably, in the initial position, the horizontal distance between the upper die module 25 and the cleaning frame 31 in the longitudinal direction of the main frame 7 is equal to the longitudinal height of the scraper 32. When the end face of the upper mold module 25 is made of an elastic material such as edible silicone, the horizontal distance between the end face of the upper mold module 25 and the cleaning frame 31 in the longitudinal direction of the main frame 7 is less than the longitudinal height of the scraper 32, and the difference between the two is between 1mm and 3mm.

[0020] When the koji pressing machine is working, the operator first feeds a fixed amount of koji material into the feeding mechanism 1. The control module 9 controls the mold box drag chain assembly 5, the feeding mechanism 1, the pressing and forming mechanism 2, and the koji discharge conveyor 4 to start synchronously. The koji material falls into the mold box component 52 of the mold box drag chain assembly 5 through the feeding mechanism 1. After the koji material is fed into the mold box component 52, as the annular drag chain 51 runs, the mold box component 52 containing the koji material enters the pressing and forming mechanism 2 between the upper mold assembly 25 and the lower mold template 27. Under the control of the control module 9, the upper mold assembly 25 presses down on the mold box component 52. The pressing end of the upper mold assembly 25 enters the mold box component 52 to press and shape the koji material, completing the production of the koji block. Subsequently, the upper mold assembly 25 moves upward, and the mold box component 52 is driven by the annular drag chain 51 to gradually move upward. As the upper mold 25 and lower mold 27 gradually separate, when the upper mold 25 moves to its initial position, the control module 9 activates the cleaning mechanism 3. The cleaning frame 31 drives the scraper 32 to slide back and forth. The upper side of the scraper 32 scrapes across the mold end face of the upper mold 25, removing the residual material adhering to the mold end of the upper mold 25. (Preferredly, during the cleaning process, the cleaning frame 31 drives the scraper 32 to slide from the tail end to the head end of the annular drag chain 51, and then slides back to the stationary position along the head end to the tail end of the annular drag chain 51, completing the cleaning. This removes the residual material adhering to the mold end of the upper mold 25 while simultaneously pushing the residual material into the mold box 52 that has not yet been pressed, thus simultaneously processing the removed residual material, which is more ingenious.) After cleaning, the mold box 52 moves directly below the ejection end of the ejection assembly 28. The ejection assembly 28 then moves downwards, with its ejection end moving towards the mold box 52, ejecting the curved block pressed into the mold box 52. Under the influence of its own gravity and the thrust of the ejection assembly 28, the curved block falls onto the ejection conveyor 4 directly below the ejection end of the ejection assembly 28, and then enters the subsequent processing and manufacturing stages via the ejection conveyor 4. It is worth noting that the cleaning mechanism 3 does not need to clean the upper mold assembly 25 every time it moves upwards; it can perform a unified cleaning after several up-and-down movements, which can save energy. This koji pressing machine can be used in the automated production of soy sauce-flavored koji, automatically pressing and shaping koji blocks. It is equipped with a cleaning mechanism 3, which is cleverly integrated into the gap of the pressing action in the pressing and shaping mechanism 2. This cleaning mechanism cleans the end face of the upper mold 25 of the pressing and shaping mechanism 2 without affecting the working efficiency of the koji pressing machine. To a certain extent, it ensures the quality of the koji blocks and maintains the cleanliness of the upper mold 25, reducing the workload of subsequent cleaning of the upper mold 25.

[0021] The aforementioned pressing and forming mechanism 2 includes a fixed frame 22 fixedly mounted on the main frame 7. A forming electric cylinder 21, electrically connected to the control module 9, is mounted on the fixed frame 22. The telescopic end of the forming electric cylinder 21 is connected to a pressing mold frame 24. Along the lower side of the pressing mold frame 24, from the beginning to the end of the annular drag chain 51, a pressing upper module 25 and an ejection assembly 28 are sequentially mounted. When the pressing and forming mechanism 2 needs to be started, the control module 9 controls the forming electric cylinder 21 to work, causing it to extend and drive the pressing mold frame 24 downwards. This design allows for synchronous control of the pressing upper module 25 and the ejection assembly 28, making the pressing and forming rhythm of the pressing machine easier to control. Preferably, a plurality of sliding guide rods 26 are provided between the molding frame 24 and the main frame 7. The plurality of sliding guide rods 26 are divided into two equal groups, located on both sides of the annular cable chain 51. Each sliding guide rod 26 includes an upper guide rod fixedly connected to the molding frame 24 and a lower guide rod fixedly installed on the main frame 7, with the upper guide rod sleeved on the corresponding lower guide rod. Preferably, the number of sliding guide rods 26 in each group is even, and starting from the first end of the annular cable chain 51, every two upper guide rods form a unit, with a connecting rod between the two upper guide rods in each unit. This design can provide sliding guidance for the molding frame 24.

[0022] The aforementioned mold box component 52 includes a unit box 521 installed on the outside of the annular drag chain 51. At least two shaping rings 522 are fixedly installed inside the unit box 521, and the multiple shaping rings 522 are sequentially arranged along the width direction of the annular drag chain 51. The arrangement of the two shaping rings 522 allows the pressing machine to produce at least two rows of shaped blocks simultaneously. Double-row pressing, or multi-row pressing, is more efficient than single-row pressing, reducing labor (control equipment) costs, improving product quality and stability, and better adapting to subsequent automated processes.

[0023] The aforementioned upper mold module 25 includes a mounting frame 251 fixedly installed on the mold frame 24 and a unit mold assembly 252. The longitudinal central axis of the mounting frame 251 is perpendicular to the transmission direction between the first and last ends of the annular drag chain 51. The unit mold assembly 252 is adaptively telescopically connected to the mounting frame 251 along the longitudinal central axis of the mounting frame 251 through an elastic member. The number of unit mold assemblies 252 in a single upper mold module 25 is equal to and corresponds one-to-one with the number of shaping rings 522 in a single mold box 52. The aforementioned ejection assembly 28 includes a number of unit ejection members 281 that correspond one-to-one with the number of shaping rings 522 in a single mold box 52. The unit ejection member 281 includes an ejection rod 2811 fixedly installed on the fixing frame 22. The free end of the ejection rod 2811 is fixedly connected to an ejection block 2812 for passing through the corresponding shaping ring 522. In this design, the one-to-one correspondence between the unit molding assembly 252 and the unit ejector 281 and the shaping ring 522 allows for quick and easy adjustment by personnel based on any additions or modifications to the shaping ring 522 in actual situations, making it more convenient. Furthermore, the elastic element can reduce the instantaneous impact on the curved material within the shaping ring 522 to a certain extent, thus providing a buffering effect.

[0024] The aforementioned mounting bracket 251 includes a mounting plate 2511, and the aforementioned unit molding assembly 252 includes a sliding guide rod 2521 that slides longitudinally through the mounting plate 2511. One end of the sliding guide rod 2521 located inside the mounting bracket 251 is connected to a first abutment block 2524, and the other end is fixedly connected to a molding component 2523. The molding component 2523 can slide through the corresponding shaping ring 522. A second abutment block 2525 is fixedly connected to the outer side of the sliding guide rod 2521 near the molding component 2523. The aforementioned elastic element is a molding buffer spring 2522 sleeved on the aforementioned sliding guide rod 2521. One end of the molding buffer spring 2522 abuts against the mounting plate 2511, and the other end abuts against the second abutment block 2525. In the initial state, the unit molding assembly 252 is affected by its own gravity, and the first abutment block 2524 abuts against the upper side of the mounting plate 2511. When the molding frame 24 moves downward, it drives the mounting frame 251 and the unit molding assembly 252 located on the mounting frame 251 to move downward. The downward movement of the unit molding assembly 252 drives the molding part 2523 to pass into the corresponding shaping ring 522 and contact the curved material inside. As the unit molding assembly 252 continues to move downward, the end of the sliding guide rod 2521 with the first abutment block 2524 gradually moves upward relative to the mounting plate 2511. That is, the mounting plate 2511 and the second abutment block 2525 cooperate to start squeezing the molding buffer spring 2522, so that the molding part 2523 is pressed down with a relatively slow downward force relative to the rapidly descending molding frame 24, thus completing the pressing of the curved block inside the shaping ring 522. This design ensures that the tightness of the curved block segment near the end of the molded part 2523 is not too stiff, thus reducing the impact force of the molded part 2523 falling.

[0025] The aforementioned upper die assembly 25 comprises multiple upper die assemblies 25, which are sequentially arranged along the annular drag chain 51 from one end to the other on the die frame 24. The distance between the central axes of any two adjacent upper die assemblies 25 is equal to the distance between the central axes of any two adjacent die box parts 52. In this design, the number of upper die assemblies 25 can be increased or decreased according to actual needs. Combined with the structure of the unit die assembly 252 within the upper die assemblies 25, multiple upper die assemblies 25 are used to press the curved material within the same shaping ring 522. That is, a curved block is formed by multiple sets of unit die assemblies 252 in stages, resulting in more consistent tightness of the curved block and ensuring its quality. Preferably, in this embodiment, the number of forming electric cylinders 21 can be increased as needed to reduce the pressure on a single forming electric cylinder 21.

[0026] The aforementioned scrapers 32 are multiple, arranged sequentially at equal intervals from the beginning to the end of the annular drag chain 51. The wall thickness of any of the aforementioned mold components 52 is greater than twice the thickness of the scraper 32, and the distance between the central axes of any two adjacent scrapers 32 is equal to the width of the mold component 52. This design is more suitable for cleaning multiple sets of mold modules 25. Furthermore, the setting of the frame wall thickness and the distance between the central axes of any two adjacent scrapers 32 allows the multiple scrapers 32 on the cleaning mechanism 3 to be placed between two mold components 52 when the pressing and forming mechanism 2 is working, without interfering with the pressing and forming mechanism 2, while also shortening its travel distance and facilitating placement.

[0027] The aforementioned output conveying mechanism 4 includes a fixed base 45 fixedly mounted on the main frame 7. A lifting assembly 44 electrically connected to the control module 9 is provided above the fixed base 45. An output bracket 41 is fixedly mounted on the lifting end of the lifting assembly 44. A conveyor belt 42 electrically connected to the control module 9 is provided on the output bracket 41. The conveying direction of the conveyor belt 42 is perpendicular to the direction of the output block on the annular drag chain 51. The lifting assembly 44 includes a lifting plate 441 and a first hinge frame 442 and a second hinge frame 443 that are hinged to each other in the middle. The upper end of the first hinge frame 442 is hinged to the lifting plate 441, and the lower end is slidably mounted on the fixed base 45. The upper end of the second hinge frame 443 is slidably mounted on the lower side of the lifting plate 441, and the lower end is hinged to the fixed base 45. The fixed base 45 is provided with an output lifting cylinder 46 electrically connected to the control module 9. The telescopic end of the output lifting cylinder 46 is connected to the first hinge frame 442 and is used to drive the first hinge frame 442 to slide back and forth along the width axis of the fixed base 45. The conveyor belt 42 is located directly below the ejection end of the ejection assembly 28. Personnel can adjust the lifting assembly 44 according to the actual height of the flaked block, thereby adjusting the longitudinal vertical distance between the upper side of the conveyor belt 42 and the bottom end face of the mold box 52. This distance must be greater than the height of the flaked block so that it can smoothly pass through the annular drag chain 51 and enter the next stage of the liquor brewing process. When the lifting assembly 44 needs to be raised or lowered, the control module 9 first activates the ejection lifting cylinder 46. The ejection lifting cylinder 46 extends, pushing the first hinge frame 442 towards the second hinge frame 443. Because the first hinge frame 442 and the second hinge frame 443 are hinged at the middle position, the upper end of the second hinge frame 443 slides towards the upper end of the first hinge frame 442, and the included angle between the first hinge frame 442 and the second hinge frame 443 gradually decreases. The longitudinal height of both ends of the first hinge frame 442 and the second hinge frame 443 increases synchronously, completing the raising. To lower the flaked block, simply adjust the ejection lifting cylinder 46 to retract. This design features a simple mechanism for rapid lifting and lowering. The lifting cylinder 46 is electrically driven, eliminating the need for hydraulic oil or compressed air, thus avoiding oil leakage and pneumatic noise, making it suitable for clean environments.

[0028] The aforementioned feeding mechanism 1 includes a feeding cylinder 13 fixedly mounted on the main frame and electrically connected to the control module 9, and a quantitative box 12 slidably mounted on the main frame 7 along the direction from the beginning to the end of the annular drag chain 51. The telescopic end of the feeding cylinder 13 is fixedly connected to the side of the quantitative box 12 away from the pressing and forming mechanism 2. The quantitative box 12 is longitudinally provided with a feeding channel 15. The number of the feeding channels 15 is equal to the number of shaping rings 522 in a single mold box 52 and is arranged in a one-to-one correspondence. The main frame 7 is fixedly provided with a feeding buffer hopper 11 located above the quantitative box 12 through a load-bearing frame 14. The feeding buffer hopper 11 slides against the upper side of the quantitative box 12. The feeding cylinder 13 is used to drive the quantitative box 12 to slide back and forth along the beginning to the end of the annular drag chain 51, thereby synchronously controlling the flow rate of the feed buffer hopper 11 into multiple feeding channels 15. The feeding buffer hopper 11 is closer to the feeding electric cylinder 13 than the feeding channel 15. Taking the number of shaping rings 522 as two, the feeding electric cylinder 13 is initially in the extended state, that is, the feeding buffer hopper 11 is not connected to either of the two feeding channels 15. When the pressing machine is about to start working, a certain amount of koji material is first put into the feeding buffer hopper 11. When the compressor starts working and the material needs to be fed into the mold box 52, the control module 9 first activates the feeding cylinder 13. The feeding cylinder 13 retracts, driving the quantitative box 12 to move towards the head of the annular drag chain 51. Then, the two feeding channels 15 gradually approach the feeding buffer hopper 11 and gradually connect with it. The material enters the mold box 52 below through the feeding channel 15. When the material channel 15 is fully connected with the feeding buffer hopper 11, the feeding cylinder 13 can adjust the length of the extended end of the collecting cylinder according to actual needs, thereby adjusting the degree of connection between the feeding channel 15 and the feeding buffer hopper 11 and adjusting the material conveying amount.

[0029] The aforementioned feeding mechanism 1 also includes a pair of spaced slide rails 16 located between the main frame 7 and the metering box 12. Each slide rail 16 has two sliding blocks, and all four sliding blocks are fixedly installed below the metering box 12. The aforementioned support frame 14 has a protective plate around its perimeter, and the aforementioned feeding electric cylinder 13 passes through the protective plate adjacent to it. The arrangement of the slide rails 16 and the four sliding blocks can reduce the wear and tear on the feeding electric cylinder 13 while still supporting the metering box 12. The protective plate provides both protection and aesthetic appeal.

[0030] In summary, this application proposes a koji pressing machine. A cleaning mechanism 3 is set between the mold box drag chain assembly 5 and the pressing and forming mechanism 2. The cleaning mechanism 3 is cleverly utilized to clean the pressing end of the pressing and forming mechanism 2 by utilizing the operating cycle of the pressing and forming mechanism 2, thereby reducing the cleaning difficulty of the subsequent koji pressing machine. At the same time, according to the structure of the pressing and forming mechanism 2, multiple scrapers 32 are arranged on the cleaning frame 31. The cleaning frame 31 is placed using the mold box drag chain assembly 5, and the scrapers 32 are stored using the two wall thicknesses of adjacent mold box parts 52. This allows the stroke of the cleaning frame 31 to be adjusted to the shortest possible length, solving the cleaning problem while achieving energy saving. In addition, the mold box part 52 has at least two shaping rings 522, which transforms the traditional single-row pressing equipment into a double-row or even multi-row pressing equipment. This enables the automated koji pressing machine to produce cylindrical koji efficiently and stably, allowing for adjustable feeding and adjustment of the koji block tightness and height according to requirements, thereby improving the quality of the koji blocks.

Claims

1. A pressing machine, comprising a main frame (7) and a mold box drag chain assembly (5) and a control module (9) mounted on the main frame (7), the mold box drag chain assembly (5) comprising an annular drag chain (51) circulating on the main frame (7), a plurality of mold box parts (52) being sequentially arranged along the circumference of the annular drag chain (51), a feeding mechanism (1), a pressing and forming mechanism (2) and a koji discharge conveying mechanism (4) being sequentially mounted on the main frame (7) from the beginning to the end of the annular drag chain (51), the mold box drag chain assembly (5), the feeding mechanism (1), the pressing and forming mechanism (2) and the koji discharge conveying mechanism (4) being electrically connected to the control module (9), characterized in that: The pressing and forming mechanism (2) includes an upper die module (25) and an ejection assembly (28) that are both longitudinally slidably mounted on the main frame (7). A lower die template (27) is fixedly connected to the main frame (7) and located directly below the upper die module (25) through the inner ring of the annular drag chain (51). The upper die module (25) is used to press and cooperate with the lower die template (27) through the corresponding mold box (52) to form a curved block. The curved block conveying mechanism (4) is mounted through the inner ring of the annular drag chain (51) and located directly below the ejection end of the ejection assembly (28). The ejection assembly (28) is used to eject the curved block inside the corresponding mold box (52). The block is pushed into the conveyor mechanism (4); a cleaning mechanism (3) is provided between the pressing and forming mechanism (2) and the annular drag chain (51). The cleaning mechanism (3) includes a cleaning frame (31) that is slidably mounted on the main frame (7) along the direction from the beginning to the end of the annular drag chain (51). The cleaning frame (31) is provided with a scraper (32). The central axis of the scraper (32) is perpendicular to the sliding direction of the cleaning frame (31). When the annular drag chain (51) rotates in a cycle, the lower end face of the scraper (32) slides against the upper end face of the mold box part (52) that passes through, and the upper side of the lower mold template (27) slides against the lower end face of the mold box part (52) that passes through.

2. The pressing machine as described in claim 1, characterized in that: The pressing and molding mechanism (2) includes a fixed frame (22) fixedly installed on the main frame (7). A molding electric cylinder (21) electrically connected to the control module (9) is installed on the fixed frame (22). The telescopic end of the molding electric cylinder (21) is connected to the molding mold frame (24). The upper molding module (25) and the ejection component (28) are sequentially installed on the lower side of the molding mold frame (24) along the direction from the first end to the last end of the annular drag chain (51).

3. The pressing machine as described in claim 2, characterized in that: The mold box component (52) includes a unit box (521) installed on the outside of the annular drag chain (51). At least two shaping rings (522) are fixedly provided inside the unit box (521), and multiple shaping rings (522) are arranged sequentially along the width direction of the annular drag chain (51).

4. The pressing machine as described in claim 3, characterized in that: The upper module (25) of the molding die includes a mounting bracket (251) fixedly installed on the molding die frame (24) and a unit molding die assembly (252). The longitudinal central axis of the mounting bracket (251) is perpendicular to the direction from the first end to the last end of the annular drag chain (51). The unit molding die assembly (252) is connected to the mounting bracket (251) via an elastic element for adaptive telescopic connection along the longitudinal central axis of the mounting bracket (251). The unit molding die assembly (252) is located within a single upper module (25). The number of the molding rings (522) in a single molded component (52) is equal to and corresponds one-to-one with the number of the molding rings (522) in a single molded component (52). The ejection assembly (28) includes a unit ejection component (281) that is equal to and corresponds one-to-one with the molding rings (522) in a single molded component (52). The unit ejection component (281) includes an ejection rod (2811) that is fixedly installed on the fixing frame (22). The free end of the ejection rod (2811) is fixedly connected to an ejection block (2812) for passing through the corresponding molding ring (522).

5. The pressing machine as described in claim 4, characterized in that: The mounting frame (251) includes a mounting plate (2511), and the unit molding assembly (252) includes a sliding guide rod (2521) that slides longitudinally through the mounting plate (2511). One end of the sliding guide rod (2521) located inside the mounting frame (251) is connected to a first abutment block (2524), and the other end is fixedly connected to a molding component (2523). The molding component (2523) can slide through the corresponding shaping ring (522). A second abutment block (2525) is fixedly connected to the outside of the sliding guide rod (2521) near the molding component (2523). The elastic element is a molding buffer spring (2522) sleeved on the sliding guide rod (2521). One end of the molding buffer spring (2522) abuts against the mounting plate (2511), and the other end abuts against the second abutment block (2525).

6. The pressing machine as described in claim 1, characterized in that: The number of upper mold modules (25) is multiple. Multiple upper mold modules (25) are arranged sequentially from the beginning to the end of the annular drag chain (51) on the mold frame (24). The distance between the central axes of any two adjacent upper mold modules (25) is equal to the distance between the central axes of any two adjacent mold box parts (52).

7. The pressing machine as described in claim 6, characterized in that: The number of scrapers (32) is multiple, and the multiple scrapers (32) are arranged at equal intervals along the first end to the last end of the annular drag chain (51). The wall thickness of any mold part (52) is twice the thickness of the scraper (32), and the distance between the central axes of any two adjacent scrapers (32) is equal to the width of the mold part (52).

8. The pressing machine as described in claim 1, characterized in that: The output conveying mechanism (4) includes a fixed base (45) fixedly mounted on the main frame (7), a lifting assembly (44) electrically connected to the control module (9) above the fixed base (45), an output bracket (41) fixedly mounted at the lifting end of the lifting assembly (44), a conveyor belt (42) electrically connected to the control module (9) on the output bracket (41), and the conveying direction of the conveyor belt (42) is perpendicular to the direction of the conveying blocks on the annular drag chain (51); the lifting assembly (44) includes a lifting plate (441) and a first hinged frame (441) hinged together in the middle. 442) and the second hinge frame (443). The upper end of the first hinge frame (442) is hinged to the lifting plate (441), and the lower end is slidably disposed on the fixed base (45). The upper end of the second hinge frame (443) is slidably disposed on the lower side of the lifting plate (441), and the lower end is hinged to the fixed base (45). The fixed base (45) is provided with an outgoing lifting cylinder (46) electrically connected to the control module (9). The telescopic end of the outgoing lifting cylinder (46) is connected to the first hinge frame (442) and is used to drive the first hinge frame (442) to slide back and forth along the width axis of the fixed base (45).

9. The pressing machine as described in claim 1, characterized in that: The feeding mechanism (1) includes a feeding cylinder (13) fixedly mounted on the main frame and electrically connected to the control module (9), and a metering box (12) slidably mounted on the main frame (7) along the direction from the beginning to the end of the annular drag chain (51). The telescopic end of the feeding cylinder (13) is fixedly connected to the side of the metering box (12) away from the pressing and forming mechanism (2). The metering box (12) is longitudinally provided with a feeding channel (15). The number of feeding channels (15) is the same as that of a single mold box (52). The number of inner shaping rings (522) is equal and they are arranged one by one. The main frame (7) is fixed with a feeding buffer hopper (11) above the quantitative box (12) through the load-bearing frame (14). The feeding buffer hopper (11) slides against the upper side of the quantitative box (12). The feeding electric cylinder (13) is used to drive the quantitative box (12) to slide back and forth along the first end to the last end of the ring drag chain (51), thereby synchronously controlling the flow rate of the feeding buffer hopper (11) into multiple feeding channels (15).

10. The pressing machine as described in claim 9, characterized in that: The feeding mechanism (1) also includes a pair of spaced slide rails (16) located between the main frame (7) and the quantitative box (12). Each slide rail (16) has two sliders that slide together. All four sliders are fixedly installed below the quantitative box (12). The load-bearing frame (14) has a protective plate on its circumferential side. The feeding electric cylinder (13) passes through the protective plate next to it.

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