Automatic bamboo shoot pressing device and bamboo shoot processing technology

Abstract

The application discloses a kind of automatic equipment of pressing bamboo shoots, including material holding device, bamboo shoot cooking device is equipped below material holding device, bamboo shoot shell stripping device is equipped below bamboo shoot cooking device, bamboo shoot cleaning device is equipped below bamboo shoot shell stripping device, and the side end of bamboo shoot cleaning device is equipped with bamboo shoot pressing device;Second conveying belt is equipped between material holding device and bamboo shoot cooking device;Second square taper pipe is equipped above frame body, second vertical pipe is fixed at the discharge port of second square taper pipe and is arranged at frame body, a pair of upper and lower interval second partition plates are arranged at second vertical pipe, and two second partition plates are alternately driven by first air cylinder respectively.A kind of processing technology of pressing bamboo shoots, comprising the following steps:1) harvesting, 2) cooking, 3) shelling, 4) jointing, 5) rinsing, 6) bagging, 7) hydraulic pressure, 8) recycling treatment.The application can automatically press bamboo shoots into finished products, with high efficiency and high degree of automation, and is worth popularization and application.

Description

Technical Field

[0001] This invention relates to agricultural product processing equipment and processing technology, particularly to bamboo shoot processing equipment and processing technology, especially to an automatic bamboo shoot pressing equipment and bamboo shoot pressing processing technology. Background Technology

[0002] Bamboo shoots are delicious and nutritious, making them a popular health food. To extend shelf life and facilitate transportation and storage, most bamboo shoots are processed into dried bamboo shoots, fermented bamboo shoots, or canned bamboo shoots. Among the many processing techniques, "pressing" is a crucial pre-processing step. Its core purpose is to remove some of the water and bitter substances (such as tyrosine and tannins) from the bamboo shoots through physical pressure, while simultaneously making the bamboo shoot's tissue structure denser, thereby improving the final product's taste, flavor, and appearance.

[0003] Currently, the pressing and processing of bamboo shoots mainly relies on traditional manual methods, which have the following significant drawbacks: 1) High labor intensity and low production efficiency: Traditional processes generally use heavy stone pressing or screw-type manual presses. During operation, the cooked bamboo shoots need to be manually loaded into pressing baskets or cloth bags, and then pressure is applied and adjusted. The entire process takes tens of hours to several days, requiring a large amount of manpower for loading, unloading and monitoring, which cannot meet the needs of modern food industry for continuous and large-scale production; 2) Difficulty in ensuring hygiene: The open pressing environment and frequent manual operation increase the risk of microbial contamination of the product; especially when using heavy stone pressing, the pressed material comes into direct or indirect contact with the heavy stone, making it difficult to thoroughly clean and disinfect, which does not meet the hygiene standards of modern food safety production. 3) Unstable pressing quality and low yield: The pressing effect relies too much on the experience of the operators; insufficient pressure or time will lead to insufficient dehydration and residual bitterness, affecting the flavor of the product; while excessive pressure or uneven pressure will easily damage the bamboo shoot tissue structure, resulting in "crushed" or incomplete shape, significantly reducing the yield; the product quality fluctuates greatly between different batches, making it difficult to achieve standardized production.

[0004] Chinese utility model patent CN 213675603 U discloses a bamboo shoot pressing device for easy feeding. The device includes a housing, a conveyor belt at the top of the housing, clamping components movably connected to the conveyor belt, extrusion components on both sides of the housing, and a liquid collection drawer at the bottom of the housing. The clamping components include two sets of opposing clamping plates and a torsion spring engaged between the two sets of clamping plates. The extrusion components include a cylinder, an extrusion plate, and a piston rod drivingly connecting the cylinder and the extrusion plate. This device performs lateral extrusion, resulting in incomplete pressing of the bamboo shoots, unstable pressing quality, and an inability to achieve the goal of pressing a large quantity of bamboo shoots with high pressing quality. Summary of the Invention

[0005] The present invention aims to overcome the shortcomings of the prior art by providing an automated bamboo shoot pressing equipment and processing technology that features high automation, high processing efficiency, and low production cost, thereby meeting the needs of automated bamboo shoot pressing.

[0006] The technical solution adopted by this invention to solve its technical problem is as follows: This automatic bamboo shoot pressing equipment includes a feeding device, a bamboo shoot steaming device below the feeding device, a bamboo shoot shell peeling device below the bamboo shoot steaming device, a bamboo shoot washing device below the bamboo shoot shell peeling device, and a bamboo shoot pressing device at the side end of the bamboo shoot washing device; the feeding device includes a first square conical tube with a smaller upper opening than the lower opening, a first vertical pipe installed at the outlet of the first square conical tube, and a pair of first partitions spaced apart vertically and vertically inserted into the first vertical pipe, the two first partitions being alternately driven by a first cylinder; the bamboo shoot steaming device includes a support, a slide frame installed on the support, a first drive motor installed on the support to move the slide frame, a tilting frame rotatably connected to the slide frame, and a belt-driven mechanism installed on the slide frame. The rotating frame is driven by a second drive motor. A steaming cylinder is fixed on the rotating frame. A grid plate is installed at the bottom of the steaming cylinder's cavity, and an end cap is installed at the top of the steaming cylinder. The end cap is opened and closed by a second cylinder installed at the steaming cylinder. A steam inlet pipe is installed at the bottom of the steaming cylinder below the grid plate. The bamboo shoot shell peeling device includes a frame, which is rotatably connected to a first conveyor belt. A set of spaced baffles is fixed on the first conveyor belt. The first conveyor belt is driven by a seventh drive motor fixed at the frame. The end of the first conveyor belt is provided with a receiving port located at the frame. The bottom of the receiving port is V-shaped, and a push plate is installed at the receiving port. A third drive motor is installed at the frame to push the push plate. A lead screw is installed on the shaft of the third drive motor, and a lead screw nut is installed on the lead screw. The lead screw nut and the push plate are connected. A connecting block is fixed between the components, and a guide port for the connecting block is opened at the material inlet. A cutter is installed at the outlet end of the material inlet. The cutter includes a stop bar fixed to the frame, a rotating rod hinged to the frame below the stop bar, a return spring installed between the rotating rod and the stop bar, a cutting blade fixed on the rotating rod, and rollers rotatably connected to the rotating rod on both sides of the cutting blade. The diameter of the rollers is smaller than the diameter of the cutting blade. Three rollers are installed on the outlet side of the material inlet, and each of the three rollers is equipped with a spiral actuating protrusion. The three rollers form a V-shaped lifting shape. A fourth drive motor is installed on the frame to drive the three rollers to rotate at different speeds. Gears with different numbers of teeth are installed on the outer side of each of the three rollers. The fourth drive motor drives any one of the gears to rotate. The bamboo shoot cleaning device includes a liquid container. The liquid-holding cylinder has a tapered opening at the top, wider at the bottom and narrower at the top. A water inlet pipe is located at the bottom of the liquid-holding cylinder. A first crossbar is positioned above the tapered opening, and a slider is slidably connected to the first crossbar. A fifth drive motor is mounted on the first crossbar to move the slider. A first double-shaft cylinder is mounted on the slider, and a first clamping cylinder is mounted on the push plate of the first double-shaft cylinder. The bamboo shoot pressing device includes a pressing tank. A pair of opposing hydraulic cylinders are mounted above the pressing tank, and a pressure plate is located below the two hydraulic cylinders. The piston rods of both hydraulic cylinders are fixed to the pressure plate. A pressing bag with a bottom perforation is installed on the pressing tank. A second conveyor belt driven by a motor is connected between the material-holding device and the bamboo shoot cooking device. A third conveyor belt driven by a motor is connected between the bamboo shoot shell peeling device and the bamboo shoot washing device.The frame has a second square conical tube at the top, wider at the top and narrower at the bottom. A second vertical tube, fixed to the frame, is located at the outlet of the second square conical tube. A pair of second partitions, spaced apart vertically, are inserted into the second vertical tube. These two partitions are alternately driven by a third cylinder. The feeding device holds freshly dug bamboo shoots and outputs them one by one. The bamboo shoot steaming device steams and cooks the bamboo shoots. The bamboo shoot peeling device automatically peels the outer shell of the bamboo shoots. The bamboo shoot washing device cleans the peeled bamboo shoots. The bamboo shoot pressing device presses the cleaned bamboo shoots into a finished product. The feeding device works by stacking bamboo shoots inside the first square conical tube, then the two first partitions open and close alternately driven by the first cylinder, causing the bamboo shoots to fall one by one from the first vertical tube into the second vertical tube. The bamboo shoot steaming device works as follows: The end cover is opened, and the bamboo shoots are fed one by one into the steaming cylinder. The end cover is then closed, and steam is introduced through the steam inlet pipe for steaming. The bamboo shoot shell peeling device works as follows: The steaming cylinder is moved outward by the first drive motor, and then rotated by the second drive motor, causing the steamed bamboo shoots to fall into the second square cone tube. Subsequently, the second baffle alternately moves the bamboo shoots one by one onto the first conveyor belt, which is then conveyed by the baffle to the receiving port. Next, the third drive motor drives the pusher plate to push the bamboo shoots... Upon entering the cutter, the cutting blades cut the bamboo shoot shells. Rollers press against the outer contour of the bamboo shoot and float elastically via a return spring, ensuring the cutting blades always cut to a certain depth. The shell-cut bamboo shoots fall onto three rotating rollers. Due to the different rotation speeds of the three rollers, the outer shell is rubbed off, similar to the previous and subsequent shell-rubbing process. The bamboo shoot washing device then uses a third conveyor belt to transport the shell-rubbled bamboo shoots to a water-filled container for washing. Because the density of bamboo shoots is less than that of water, the washed bamboo shoots float at the conical tube opening, making them easier for the subsequent clamping cylinders to pick up one by one. Bamboo shoots create favorable conditions; the working principle of the bamboo shoot pressing device is as follows: The first dual-shaft cylinder is activated, driving the first clamping cylinder downwards. After the first clamping cylinder reaches the designated position, it is activated again to clamp the bamboo shoot located at the conical tube opening. Then, the first dual-shaft cylinder drives the first clamping cylinder upwards. Subsequently, the fifth drive motor drives the first dual-shaft cylinder to move above the pressing bag. Next, the first dual-shaft cylinder is activated again, driving the first clamping cylinder downwards and placing the bamboo shoot in the pressing bag. This process is repeated until the bamboo shoots are stacked in the pressing bag. Finally, the hydraulic cylinder is activated, driving the pressure plate downwards to press the pressing bag containing the bamboo shoots.

[0007] Further improvements include four square-shaped hydraulic units within the pressing tank. Each unit consists of five hydraulic components partially arranged along the circumference, with two opposing hydraulic cylinders forming a hydraulic unit. The pressure plate is fixed to the piston rods of the two cylinders. The function of these hydraulic units and components is to provide multiple hydraulic components, enabling the simultaneous pressing of multiple bags containing bamboo shoots. This prevents the equipment from stopping due to a lack of hydraulic components after the bamboo shoots have been peeled, steamed, and bagged.

[0008] Further improvements include the installation of vibrators on both the first and second square conical tubes. The function of these vibrators is to ensure smooth and unobstructed transport of bamboo shoots, thereby improving the transport efficiency and smoothness. These vibrators are commercially available products; options include those from companies such as Xinxiang Hongda Vibration Equipment Co., Ltd. and Anyang Vibrator Co., Ltd.

[0009] Further improvements include a bamboo joint clearing device at the side end of the third conveyor belt. This device comprises a clamping component and a drilling component. The clamping component includes a second dual-shaft cylinder located at the side end of the third conveyor belt, with a second clamping cylinder fixed to its push plate. The drilling component includes a third dual-shaft cylinder located at the other side end of the third conveyor belt, with a sixth drive motor fixed to its push plate. A spiral drill bit is mounted on the shaft of the sixth drive motor. The function of this bamboo joint clearing device is to clear the joints of steamed and peeled bamboo shoots, improving the subsequent pressing quality. The device operates as follows: the third conveyor belt pulls the peeled bamboo shoots to a position directly opposite the clamping component. Then, the second clamping cylinder on the clamping component moves and clamps the bamboo shoot. Subsequently, the sixth drive motor on the drilling component moves and simultaneously activates the spiral drill bit on its shaft, thereby clearing the joints within the bamboo shoot.

[0010] Further improvements include a receiving tray mounted on the frame at the discharge end of the roller. A rotating shaft is rotatably connected within the receiving tray, driven by a fourth drive motor. A first pulley is mounted on the shaft of the fourth drive motor, and a shaft is connected to the side of the rotating shaft. A second pulley is mounted on the shaft, and a belt connects the first and second pulleys. A set of evenly distributed material-guiding plates are fixed on the rotating shaft, and a downward-guiding plate is fixed on the receiving tray, its position matching the second conveyor belt. The function of the receiving tray, material-guiding plates, and guiding plates is to guide the peeled bamboo shoots one by one to the third conveyor belt, ensuring orderly bamboo shoot transport and preventing other bamboo shoots from interfering with the segment-cleaning process.

[0011] Further improvements include anti-slip patterns on the outer contours of both the second and third conveyor belts. These patterns ensure the bamboo shoots move more smoothly during transport, preventing them from shifting or falling off the conveyor belts.

[0012] To further improve the process, a temperature sensor is installed at the steaming drum. The function of this temperature sensor is to monitor the steaming temperature inside the drum in real time, ensuring a stable temperature control within 100℃. This prevents the bamboo shoots from being undercooked due to low temperatures, or overcooked and mushy due to high temperatures, which would affect subsequent processing. The temperature sensor used is a commercially available product; options include those from Dongguan Xingxiang Sensor Technology Co., Ltd., and Suzhou Lisu Electronic Technology Co., Ltd.

[0013] Further improvements include the installation of an ultrasonic generator on the liquid-holding cylinder; a PLC controller is installed on the wall of the pressing tank; the PLC controller is connected to the circuitry of the temperature sensor, ultrasonic generator, motors on the second and third conveyor belts, first cylinder, second cylinder, temperature sensor, third cylinder, vibrator, third drive motor, fourth drive motor, seventh drive motor, ultrasonic generator, fifth drive motor, first dual-axis cylinder, first clamping cylinder, second dual-axis cylinder, second clamping cylinder, third dual-axis cylinder, and sixth drive motor. The ultrasonic generator here serves to quickly and thoroughly clean the peeled bamboo shoots, preventing any surface sand or dirt residue. This ultrasonic generator is a commercially available product; options include those from Shenzhen Taiheda Technology Co., Ltd., and Dongguan Taiheda Ultrasonic Technology Co., Ltd. The PLC controller here automates the coordinated operation of the various components. The PLC controller in this solution is a commercially available programmable logic controller (PLC), and brands such as Mitsubishi, Schneider, Unicon, Delta, and Panasonic are suitable. Furthermore, the PLC controller's programming principles are largely consistent with commercially available methods, allowing ordinary technicians to easily and quickly set program instructions according to processing speed and efficiency requirements.

[0014] Further improvements include the addition of a self-lubricating layer on the inner surfaces of the first square conical tube, the first vertical tube, the second square conical tube, and the second vertical tube. The purpose of this self-lubricating layer is to reduce frictional resistance and ensure a smoother descent of the bamboo shoot, preventing it from getting stuck. This self-lubricating layer is made of tin bronze.

[0015] This pressing and processing technique for bamboo shoots includes the following steps: 1. Harvesting: Select well-grown bamboo shoots with a length of 40-50cm as raw materials for harvesting; 2. Steaming. Place the harvested bamboo shoots in a steaming device, control the steaming temperature at 100℃, and steam for 1 hour. 3. Peeling: Remove the woody outer shell of the bamboo shoots, keeping the edible parts; 4. Opening the nodes: Use tools to open the bamboo nodes; 5. Rinsing: Place the bamboo shoots after removing the nodes in running water and rinse them thoroughly to remove any remaining impurities; 6. Bagging: Select 10,000L plastic bags with 5mm diameter drainage holes evenly spaced at the bottom. Neatly stack the rinsed bamboo shoots into the bags, reaching a height of 1m. Fold the four sides of the plastic bags inwards to ensure the bag opening is flat. 7. Hydraulic: Place the filled bamboo shoot bags in the pressing tank, start the hydraulic equipment to pressurize the bamboo shoot bags, maintain the pressure for 24-48 hours, so that the water can be fully discharged through the drainage holes at the bottom of the bags; 8. Cyclic Processing: After the initial hydraulic press, open the plastic bag and add more bamboo shoots. Repeat steps 6-7 for bagging and hydraulic pressing until the plastic bag is full.

[0016] The beneficial effects of this invention are: 1) The feeding device can hold freshly dug bamboo shoots and output them one by one; 2) The bamboo shoot steaming device can steam and cook bamboo shoots. 3) The bamboo shoot outer shell peeling device can automatically peel off the outer shell of bamboo shoots; 4) The bamboo shoot cleaning device can clean the peeled bamboo shoots thoroughly; 5) The bamboo shoot pressing device can press the cleaned bamboo shoots into finished products; 6) The bamboo joint removal device can be used to remove the joints of steamed and peeled bamboo shoots, which can improve the quality of subsequent pressing of bamboo shoots. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 for Figure 1 A-view; Figure 3 for Figure 1 B-view perspective; Figure 4 for Figure 1 C-view; Figure 5 The three-dimensional bamboo shoot shell peeling device of the present invention Figure 1 ; Figure 6 The three-dimensional bamboo shoot shell peeling device of the present invention Figure 2 ; Figure 7 The three-dimensional bamboo shoot shell peeling device of the present invention Figure 3 ; Figure 8 This is a perspective view of the cutter area of ​​the present invention.

[0018] Explanation of reference numerals in the attached drawings: 1. Material holding device; 1-1. First square conical tube; 1-2. First vertical tube; 1-3. First partition; 1-4. First cylinder; 2. Bamboo shoot steaming device; 2. Support; 2-1. Slide frame; 2-2. First drive motor; 2-3. Tilting frame; 2-3a; Second drive motor; 2-4. Steaming cylinder; 2-5. Grid plate; 2-6. End cap; 2-7. Second cylinder; 2-8. Steam inlet pipe; 2-9. Temperature sensor; 2-10. Bamboo shoot shell peeling device; 3. Frame; 3-1. First conveyor belt; 3-2. Baffle; 3-3. Material receiving port; 3-4. Push plate; 3-5. Third drive motor; 3-6. Cutter; 3-7. Stop bar; 3-7a. Rotating rod; 3-7b. Return spring; 3-7c. Cutting blade; 3-7d. Roller; 3-7e. Roller shaft; 3-8. Fourth drive motor; 3-9. Seventh drive motor; 3-10. Bamboo shoot cleaning device; 4. Liquid holding cylinder; 4-1. Conical tube. Components: 4-1a (mouth), 4-2 (ultrasonic generator), 4-3 (water inlet pipe), 4-4 (first crossbar), 4-5 (slider), 4-6 (fifth drive motor), 4-7 (first dual-shaft cylinder), 4-8 (first clamping cylinder), 5 (bamboo shoot pressing device), 5-1 (pressing tank), 5-2 (hydraulic cylinder), 5-3 (pressing plate), 5-4 (pressing bag), 5-5 (hydraulic assembly), 5-5a (hydraulic component), 5-6 (pressing bag placement trough), 6 (second conveyor belt), 7 (second square cone tube). Second partition 8, third cylinder 9, vibrator 10, third conveyor belt 13, bamboo joint device 14, clamping component 15, second double-axis cylinder 15-1, second clamping cylinder 15-2, drill joint component 16, third double-axis cylinder 16-1, sixth drive motor 16-2, spiral drill bit 16-3, receiving tray 17, rotating shaft 17-1, material feeding plate 17-2, guide plate 17-3, anti-slip pattern 18, self-lubricating layer 19. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings: Referring to the attached drawings; this automatic bamboo shoot pressing equipment is characterized by: a feeding device 1, a bamboo shoot steaming device 2 located below the feeding device 1, a bamboo shoot shell peeling device 3 located below the bamboo shoot steaming device 2, a bamboo shoot washing device 4 located below the bamboo shoot shell peeling device 3, and a bamboo shoot pressing device 5 located at the side end of the bamboo shoot washing device 4; the feeding device 1 includes a first square conical tube 1-1 with a smaller upper opening than the lower opening, a first vertical tube 1-2 installed at the outlet of the first square conical tube 1-1, and a pair of... The first partitions 1-3 are arranged at upper and lower intervals, and the two first partitions 1-3 are driven alternately by the first cylinders 1-4 respectively; the bamboo shoot steaming device 2 includes a support 2-1, a slide 2-2 is provided on the support 2-1, a first drive motor 2-3 is installed on the support 2-1 to drive the slide 2-2 to move through a screw and nut mechanism, a tilting frame 2-3a is rotatably connected to the slide 2-2, a second drive motor 2-4 is installed on the slide 2-2 to drive the tilting frame 2-3a to tilt through a worm gear mechanism, and a tilting frame 2-3a is fixed on the slide 2-2. A steaming cylinder 2-5 is provided, with a grid plate 2-6 at the bottom of the cavity of the steaming cylinder 2-5 and an end cap 2-7 installed at the top of the steaming cylinder 2-5. The end cap 2-7 is opened and closed by a second cylinder 2-8 installed at the steaming cylinder 2-5. A steam inlet pipe 2-9 is installed at the bottom of the steaming cylinder 2-5 below the grid plate 2-6. The bamboo shoot shell peeling device 3 includes a frame 3-1, with a first conveyor belt 3-2 rotatably connected to the frame 3-1. A set of spaced baffles 3-3 are fixed on the first conveyor belt 3-2. The first conveyor belt 3-2 is connected by a fixed... A seventh drive motor 3-10 is fixed at the frame 3-1. The end of the first conveyor belt 3-2 is equipped with a receiving port 3-4 located at the frame 3-1. The bottom of the receiving port 3-4 is V-shaped. A push plate 3-5 is installed at the receiving port 3-4. A third drive motor 3-6 is installed at the frame 3-1 to push the push plate 3-5. A lead screw is installed on the shaft of the third drive motor 3-6, and a lead screw nut is installed on the lead screw. A connecting block is fixed between the lead screw nut and the push plate 3-5. A guide port (e.g., for the connecting block to pass through) is opened at the receiving port. Figure 6 , Figure 7 , Figure 8As shown), a cutter 3-7 is provided at the outlet end of the receiving port 3-4; the cutter 3-7 includes a stop bar 3-7a fixed on the frame 3-1, a rotating rod 3-7b hinged to the frame 3-1 below the stop bar 3-7a, a return spring 3-7c installed between the rotating rod 3-7b and the stop bar 3-7a, a cutting blade 3-7d fixed on the rotating rod 3-7b, and rollers 3-7e rotatably connected to the rotating rod 3-7b on both sides of the cutting blade 3-7d. The diameter of wheel 3-7e is smaller than the diameter of cutting blade 3-7d. Three rollers 3-8 are provided on the discharge side of the receiving port 3-4. Each of the three rollers 3-8 has a spiral actuating protrusion 3-8a. The three rollers 3-8 form a V-shaped support. A fourth drive motor 3-9 is mounted on the frame 3-1 to drive the three rollers 3-8 to rotate at different speeds. Gears with different numbers of teeth are mounted on the outer sides of each of the three rollers 3-8. The fourth drive motor 3-9 drives any one of the gears to rotate (e.g., ...). Figure 7 (As shown); the bamboo shoot cleaning device 4 includes a liquid-holding cylinder 4-1, the top of which is a tapered opening 4-1a that is wider at the bottom and narrower at the top; a water inlet pipe 4-3 is provided at the bottom of the liquid-holding cylinder 4-1; a first crossbar 4-4 is provided above the tapered opening 4-1a; a slider 4-5 is slidably connected to the first crossbar 4-4; a fifth drive motor 4-6 is installed on the first crossbar 4-4 to drive the slider 4-5 to move; a first double-shaft cylinder 4-7 is installed on the slider 4-5; a first clamping cylinder 4-8 is installed on the push plate of the first double-shaft cylinder 4-7; the bamboo shoot pressing device 5 includes a pressing tank 5-1; a pair of opposing hydraulic cylinders 5-2 are installed above the pressing tank 5-1; the two hydraulic cylinders 5-2 Below is a pressure plate 5-3, and the piston rods of the two hydraulic cylinders 5-2 are fixed at the pressure plate 5-3. A pressing bag 5-4 with a bottom leakage hole is installed on the pressing pool 5-1. A second conveyor belt 6 driven by a motor is provided between the material holding device 1 and the bamboo shoot steaming device 2. A third conveyor belt 13 driven by a motor is provided between the bamboo shoot shell peeling device 3 and the bamboo shoot washing device 4. A second square cone tube 7 with a large upper opening and a small lower opening is provided above the frame 3-1. A second vertical pipe 7-1 fixed at the outlet of the second square cone tube 7 is provided at the frame 3-1. A pair of second partitions 8 are inserted into the second vertical pipe 7-1, which are spaced apart at the top and bottom. The two second partitions 8 are driven alternately by the third cylinder 9.

[0020] The pressing tank 5-1 is equipped with four square-shaped hydraulic units 5-5. Each of the four hydraulic units 5-5 consists of five hydraulic components 5-5a arranged locally along the circumference. Two hydraulic cylinders 5-2 arranged opposite each other form hydraulic components 5-5a. The pressure plate 5-3 is fixed at the piston rod of the two hydraulic cylinders 5-2.

[0021] Both the first square tapered tube 1-1 and the second square tapered tube 7 are equipped with vibrators 10.

[0022] The third conveyor belt 13 is provided with a bamboo joint device 14 at one side end; the bamboo joint device 14 includes a clamping member 15 and a drilling member 16; the clamping member 15 includes a second dual-axis cylinder 15-1 located at one side end of the third conveyor belt 13, and a second clamping cylinder 15-2 is fixed on the push plate of the second dual-axis cylinder 15-1; the drilling member 16 includes a third dual-axis cylinder 16-1 located at the other side end of the third conveyor belt 13, and a sixth drive motor 16-2 is fixed on the push plate of the third dual-axis cylinder 16-1, and a spiral drill bit 16-3 is installed on the shaft of the sixth drive motor 16-2.

[0023] A receiving tray 17 located at the discharge end of roller 3-8 is installed on the frame 3-1. A rotating shaft 17-1 is rotatably connected inside the receiving tray 17. The rotating shaft 17-1 is driven by a fourth drive motor 3-9. A first pulley is installed on the shaft of the fourth drive motor 3-9. A shaft is connected to the side end of the rotating shaft 17-1. A second pulley is installed on the shaft. A belt (such as...) is installed between the first pulley and the second pulley. Figure 7 As shown), a set of material feeding plates 17-2 are fixed on the rotating shaft 17-1 and evenly distributed along the center of the rotating shaft 17-1. A guide plate 17-3 is fixed on the receiving plate 17 and guides it downward. The position of the guide plate 17-3 matches that of the second conveyor belt 6.

[0024] The outer contours of the second conveyor belt 6 and the third conveyor belt 13 are both provided with anti-slip patterns 18.

[0025] Temperature sensor 2-10 is installed at steaming cylinder 2-5; ultrasonic generator 4-2 is installed on liquid container 4-1; PLC controller is installed on the wall of pressing tank 5-1. PLC controller is connected to temperature sensor 2-10, ultrasonic generator 4-2, motor on second conveyor belt 6, motor on third conveyor belt 13, first cylinder 1-4, second cylinder 2-8, temperature sensor 2-10, third cylinder 9, vibrator 10, third drive motor 3-6, fourth drive motor 3-9, seventh drive motor 3-10, ultrasonic generator 4-2, fifth drive motor 4-6, first dual-shaft cylinder 4-7, first clamping cylinder 4-8, second dual-shaft cylinder 15-1, second clamping cylinder 15-2, third dual-shaft cylinder 16-1, and sixth drive motor 16-2.

[0026] The inner surfaces of the first square tapered tube 1-1, the first vertical tube 1-2, the second square tapered tube 7, and the second vertical tube 7-1 are all provided with a self-lubricating layer 19.

[0027] This pressing and processing technique for bamboo shoots includes the following steps: 1) Harvesting: Select well-grown bamboo shoots with a length of 40-50cm as raw materials for harvesting; 2) Steaming. Place the harvested bamboo shoots in a steaming device, control the steaming temperature at 100℃, and steam for 1 hour. 3) Peeling: Remove the woody outer shell of the bamboo shoots, keeping the edible parts; 4) Opening the nodes: Using tools to open up the bamboo nodes; 5) Rinsing: Place the bamboo shoots after removing the nodes in running clean water and rinse them thoroughly to remove any remaining impurities; 6) Bagging: Select 10,000L plastic bags with 5mm diameter drainage holes evenly spaced at the bottom. Neatly stack the rinsed bamboo shoots into the bags, reaching a height of 1m. Fold the four sides of the plastic bags inwards to ensure the bag opening is flat. 7) Hydraulic: Place the filled bamboo shoot bags in the pressing tank, start the hydraulic equipment to pressurize the bamboo shoot bags, maintain the pressure for 24-48 hours, and allow the water to be fully discharged through the drainage holes at the bottom of the bags; 8) Cyclic Processing: After the initial hydraulic press is completed, open the plastic bag and add more bamboo shoots. Repeat steps 6-7 for bagging and hydraulic pressing until the plastic bag is full.

[0028] The working principle of this invention is as follows: Bamboo shoots with a length of 40-50cm are collected as raw materials and poured into the first square conical tube 1-1. Then, the two first partitions 1-3 are alternately opened and closed by the two first cylinders 1-4, so that the bamboo shoots fall one by one from the first vertical tube 1-2 to the second conveyor belt 6. The end cover 2-7 is opened by the second cylinder 2-8, and the bamboo shoots are then conveyed one by one into the steaming cylinder 2-5. The end cover 2-7 is then closed by the second cylinder 2-8, and steam is introduced into the steam inlet pipe 2-9. The temperature is controlled within the range of 100 degrees Celsius by a temperature sensor and steaming is continued for 1 hour. After the bamboo shoots are steamed, the steaming cylinder 2-5 is moved outward by the first drive motor 2-3. After it is moved outward, the second drive motor 2-4 then moves it outward. The steaming drum 2-5 is rotated, pouring the steamed bamboo shoots into the second square cone tube 7. Then, the two second partitions 8 operate alternately via two third cylinders 9, causing the bamboo shoots to fall one by one onto the first conveyor belt 3-2, which is then conveyed by baffles 3-3 to the receiving port 3-4. Next, the third drive motor 3-6 drives the pusher plate 3-5 to push the bamboo shoots into the cutter 3-7. The cutting blade 3-7d at the cutter 3-7 cuts the bamboo shoot shell. The roller 3-7e presses against the outer contour of the bamboo shoot and floats elastically via a return spring 3-7c, ensuring that the cutting blade 3-7d always cuts the bamboo shoot shell to a certain depth. The cut bamboo shoots fall into three... (The sentence is incomplete and requires further context to translate accurately.) The rotating roller 3-8, driven by motor 3-9, rubs the bamboo shoot by a spiral agitator 3-8a (due to the different rotation speeds of the three rollers 3-8, the bamboo shoot outer shell is rubbed off in a front-to-back motion). The peeled bamboo shoot falls onto the receiving tray 17 and is pushed out by the rotating material-pushing plate 17-2. Guided by the guide plate 17-3, it falls onto the third conveyor belt 13. The third conveyor belt 13 moves the peeled bamboo shoot to the position directly opposite the clamping member 15. Then, the second clamping cylinder 15-2 on the clamping member 15 is moved by the second double-axis cylinder 15-1 and clamps the bamboo shoot. Subsequently, the sixth drive motor 16-2 on the drill section 16 drives the bamboo shoot through the third double-axis cylinder 16-1. The sixth drive motor 16-2 and the spiral drill bit 16-3 on its shaft are moved and activated synchronously to remove the nodes from the bamboo shoot. After the nodes are removed, the sixth drive motor 16-2 and the second clamping cylinder 15-2 are reset, and the third conveyor belt 13 continues to transport the bamboo shoot with the shell removed and nodes removed. The bamboo shoot falls into the water-filled container 4-1 for ultrasonic cleaning. Since the density of bamboo shoot is less than that of water, the cleaned bamboo shoot floats at the conical tube opening 4-1a. After the bamboo shoot is cleaned, the first dual-axis cylinder 4-7 is activated, which moves the first clamping cylinder 4-8 downward. After the first clamping cylinder 4-8 moves to the designated position, it is activated again to clamp the bamboo shoot located at the conical tube opening 4-1a.Then, the first dual-shaft cylinder 4-7 drives the first clamping cylinder 4-8 to move upward. Subsequently, the fifth drive motor 4-6 drives the first dual-shaft cylinder 4-7 to move above the pressing bag 5-4. Immediately afterwards, the first dual-shaft cylinder 4-7 is activated to drive the first clamping cylinder 4-8 to move downward, placing the bamboo shoots in the pressing bag 5-4. The above operation is repeated, stacking the bamboo shoots one by one inside the pressing bag 5-4, with the bamboo shoots stacked to a height of 1m. The four sides of the pressing bag 5-4 are folded inward to ensure the bag opening is flat, and the pressing bag 5-4 is manually lifted to any pressing bag placement slot 5. At position -6, the hydraulic cylinder 5-2 at the hydraulic component 5-5a above the corresponding pressing bag placement slot 5-6 is then activated, driving the pressure plate 5-3 downwards to press the pressing bag 5-4 containing bamboo shoots. Pressure is maintained for 24-48 hours, allowing water to be fully discharged through the drain hole of the pressing bag 5-4. After the initial hydraulic press, the pressing bag 5-4 is opened to replenish the bamboo shoots. The above bagging and hydraulic operations are repeated until the pressing bag 5-4 is full. This invention provides a bamboo shoot pressing method with high automation, high processing efficiency, and low production cost, and is worthy of widespread application.

[0029] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art will understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. An automatic bamboo shoot pressing device, characterized in that: It includes a feeding device (1), a bamboo shoot steaming device (2) is provided below the feeding device (1), a bamboo shoot shell peeling device (3) is provided below the bamboo shoot shell peeling device (3), a bamboo shoot washing device (4) is provided below the bamboo shoot washing device (4), and a bamboo shoot pressing device (5) is provided on the side of the bamboo shoot washing device (4). A second conveyor belt (6) is provided between the feeding device (1) and the bamboo shoot steaming device (2); a third conveyor belt (13) is provided between the bamboo shoot shell peeling device (3) and the bamboo shoot washing device (4); a second square cone tube (7) with a large upper opening and a small lower opening is provided on the bamboo shoot shell peeling device (3); a second vertical tube (7-1) fixed at the outlet of the second square cone tube (7) is provided at the bamboo shoot shell peeling device (3); a pair of second partitions (8) are inserted into the second vertical tube (7-1) and spaced apart at the top and bottom; the two second partitions (8) are driven alternately by a third cylinder (9); The material holding device (1) includes a first square cone tube (1-1) with a large upper opening and a small lower opening. A first vertical tube (1-2) is installed at the outlet of the first square cone tube (1-1). A pair of first partitions (1-3) are inserted into the first vertical tube (1-2) and spaced apart at the top and bottom. The two first partitions (1-3) are driven alternately by a first cylinder (1-4). The bamboo shoot steaming device (2) includes a support (2-1), a slide (2-2) is provided on the support (2-1), a first drive motor (2-3) is installed on the support (2-1) to move the slide (2-2), a flipping frame (2-3a) is rotatably connected to the slide (2-2), a second drive motor (2-4) is installed on the slide (2-2) to flip the flipping frame (2-3a), a steaming cylinder (2-5) is fixed on the flipping frame (2-3a), a grid plate (2-6) is provided at the bottom of the cavity of the steaming cylinder (2-5), an end cap (2-7) is installed at the top of the steaming cylinder (2-5), the end cap (2-7) is opened and closed by a second cylinder (2-8) installed at the steaming cylinder (2-5), and a steam inlet pipe (2-9) is installed at the bottom of the steaming cylinder (2-5) below the grid plate (2-6). The bamboo shoot shell peeling device (3) includes a frame (3-1), a first conveyor belt (3-2) rotatably connected to the frame (3-1), a set of spaced baffles (3-3) fixed on the first conveyor belt (3-2), the first conveyor belt (3-2) being driven by a seventh drive motor (3-10) fixed to the frame (3-1), a receiving port (3-4) located at the end of the first conveyor belt (3-2) at the frame (3-1), the bottom end of the receiving port (3-4) being V-shaped, a push plate (3-5) installed at the receiving port (3-4), a third drive motor (3-6) installed at the frame (3-1) to push the push plate (3-5) to move, and a cutter (3-7) provided at the outlet end of the receiving port (3-4); the cutter (3-7) includes a stop bar (3-7a) fixed to the frame (3-1). Below the stop bar (3-7a), there is a rotating rod (3-7b) hinged to the frame (3-1). A return spring (3-7c) is installed between the rotating rod (3-7b) and the stop bar (3-7a). A cutting blade (3-7d) is fixed on the rotating rod (3-7b). Rollers (3-7e) are rotatably connected to the rotating rod (3-7b) on both sides of the cutting blade (3-7d). The diameter of the rollers (3-7e) is smaller than the diameter of the cutting blade (3-7d). Three rollers (3-8) are provided on the discharge side of the receiving port (3-4). Each of the three rollers (3-8) is provided with a spiral actuating protrusion (3-8a). The three rollers (3-8) form a V-shaped lifting shape. A fourth drive motor (3-9) is installed on the frame (3-1) to drive the three rollers (3-8) to rotate at different speeds. The bamboo shoot cleaning device (4) includes a liquid container (4-1), the top of which is a tapered opening (4-1a) that is wider at the bottom and narrower at the top. A water inlet pipe (4-3) is provided at the bottom of the liquid container (4-1). A first crossbar (4-4) is provided above the tapered opening (4-1a). A slider (4-5) is slidably connected to the first crossbar (4-4). A fifth drive motor (4-6) for moving the slider (4-5) is installed on the first crossbar (4-4). A first dual-axis cylinder (4-7) is installed on the slider (4-5). A first clamping cylinder (4-8) is installed on the push plate of the first dual-axis cylinder (4-7). The bamboo shoot pressing device (5) includes a pressing pool (5-1), a pair of hydraulic cylinders (5-2) arranged opposite each other are installed above the pressing pool (5-1), a pressure plate (5-3) is provided below the two hydraulic cylinders (5-2), the piston rods of the two hydraulic cylinders (5-2) are fixed at the pressure plate (5-3), and a pressing bag (5-4) with a bottom leakage hole is provided on the pressing pool (5-1).

2. The automatic bamboo shoot pressing equipment according to claim 1, characterized in that: The pressing tank (5-1) is equipped with four square-shaped hydraulic units (5-5). Each of the four hydraulic units (5-5) consists of five hydraulic components (5-5a) partially arranged along the circumference. Two hydraulic cylinders (5-2) arranged opposite each other form hydraulic components (5-5a). The pressure plate (5-3) is fixed at the piston rod of the two hydraulic cylinders (5-2).

3. The automatic bamboo shoot pressing equipment according to claim 1, characterized in that: Both the first square tapered tube (1-1) and the second square tapered tube (7) are equipped with vibrators (10).

4. The automatic bamboo shoot pressing equipment according to claim 1, characterized in that: The third conveyor belt (13) is provided with a bamboo joint device (14) at one side end; the bamboo joint device (14) includes a clamping member (15) and a drilling member (16); the clamping member (15) includes a second dual-axis cylinder (15-1) located at one side end of the third conveyor belt (13), and a second clamping cylinder (15-2) is fixed on the push plate of the second dual-axis cylinder (15-1); the drilling member (16) includes a third dual-axis cylinder (16-1) located at the other side end of the third conveyor belt (13), and a sixth drive motor (16-2) is fixed on the push plate of the third dual-axis cylinder (16-1), and a spiral drill bit (16-3) is installed on the shaft of the sixth drive motor (16-2).

5. The automatic bamboo shoot pressing equipment according to claim 1, characterized in that: The frame (3-1) is equipped with a receiving tray (17) located at the discharge end of the roller (3-8). A rotating shaft (17-1) is rotatably connected inside the receiving tray (17). The rotating shaft (17-1) is driven by a fourth drive motor (3-9). A set of material-pulling plates (17-2) are fixed on the rotating shaft (17-1) and evenly distributed along the center of the rotating shaft (17-1). A downward-guiding guide plate (17-3) is fixed on the receiving tray (17). The position of the guide plate (17-3) matches that of the second conveyor belt (6).

6. The automatic bamboo shoot pressing equipment according to claim 1, characterized in that: The outer contours of the second conveyor belt (6) and the third conveyor belt (13) are provided with anti-slip patterns (18).

7. The automatic bamboo shoot pressing equipment according to claim 1, characterized in that: A temperature sensor (2-10) is installed at the steaming cylinder (2-5); an ultrasonic generator (4-2) is installed on the liquid container (4-1).

8. The automatic bamboo shoot pressing equipment according to claim 1, characterized in that: The inner surfaces of the first square tapered tube (1-1), the first vertical tube (1-2), the second square tapered tube (7), and the second vertical tube (7-1) are all provided with a self-lubricating layer (19).

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