A double blade and holder device for skinning of a full-automatic broad bean skinning machine

Abstract

This invention discloses a fully automatic broad bean peeling machine with double-blade peeling mechanism and blade holder, including a blade holder base, blade holder plate, blade handle, blade, blade pressure plate, fixing plate, two compression springs arranged back-to-back, an adjustment plate and spring baffle integrated with the blade holder plate, and an adjustment screw. The blade handle has a rotating hole located at one-third of its length and near the adjustment plate end; the blade is parallel to the rotating hole and perpendicular to the blade handle. The blade extends 0.3 to 0.8 mm beyond the pressure plate, precisely cutting into the surface of fresh broad beans without damaging the bean flesh. It can also be used to peel the outer skin of soaked dried broad beans (each dried broad bean weighs 1.2-1.3 grams and has been soaked in 60°C hot water for at least 7 hours). In manual operation, one person can peel 1.2-1.3 kg of dried broad beans per hour, which is 4 to 6 times more efficient than manual peeling, without damaging fingernails, and even at high speeds, it will not tear the bean flesh. This blade holder device is particularly suitable as a core component of a fully automatic broad bean peeling machine. After the rotating hole is connected to the drive mechanism, it can achieve automated continuous peeling with a bean breakage rate of less than 0.5%. This invention has a simple structure, low cost, and does not damage the bean kernel. It can be used manually or integrated into automated equipment.

Description

Technical Field

[0002] This invention relates to a double-blade peeling device and a blade holder for a fully automatic broad bean peeling machine. Specifically, it is a broad bean peeling knife and blade holder for peeling the outer skin of fresh broad beans and dried broad beans after soaking in water. It is particularly suitable as a core component of a fully automatic broad bean peeling machine. Background Technology

[0004] Traditionally, broad bean peeling is mostly done manually. For both fresh and dried broad beans after soaking, manual peeling presents several significant problems: First, extremely low efficiency: only 0.2-0.3 kg of dried broad beans (before soaking) can be peeled per hour, insufficient for home or small-scale processing needs. Second, severe nail damage: prolonged operation causes nail pain and wear; discomfort typically lasts no more than 30 minutes, making sustained work impossible. Third, quality is difficult to guarantee: speeding up manual peeling easily tears the beans, resulting in damage and poor appearance; careful, slow peeling further reduces efficiency. Speed ​​and quality cannot be simultaneously achieved. Fourth, automation bottlenecks: existing fully automatic broad bean peeling machines mostly use crushing, roller, or pneumatic principles, resulting in high bean breakage rates. Crucially, they cannot peel a complete broad bean or even a whole bean kernel (because their method forcibly breaks the bean and then separates the kernel from the skin through rubbing, and is only suitable for dried broad beans). Furthermore, they lack a simple, reliable, and bean-friendly peeling mechanism. As a core component, the performance of the peeling blade directly determines the peeling effect of the fully automatic broad bean peeling machine. Some existing bean peeling machines have a rough structure, high cost, and are not specially designed for the characteristics of soaked broad beans ("skin thickness, bean size, temperature sensitivity"), making them unsuitable for fine processing. Existing broad bean peeling machines can only peel one broad bean at a time, and they cannot squeeze out the bean kernels, which still requires manual labor. Summary of the Invention

[0006] This invention provides a fully automatic broad bean peeling machine with a double-blade and blade holder, specifically designed for peeling the outer skin of fresh broad beans and the outer skin of dried broad beans after soaking. On the machine, one set of double blades and blade holder can peel 1.2-1.3 kg of dried broad beans (before soaking) per hour, which is 4 to 6 times more efficient than manual peeling. Regardless of the speed, it will not damage the beans, achieving a balance between speed and quality. Furthermore, this double-blade and blade holder can also be used independently in catering, markets, and homes. It is a simple, low-cost broad bean peeling tool that does not damage the beans, achieving the same peeling integrity as machine and manual peeling, without injuring fingernails (a single person manually can peel 1.2-1.3 kg of dried broad beans (before soaking) per hour with one set of double blades and blade holder, and even more for fresh broad beans). It provides a key actuator for a fully automatic broad bean peeling machine that is simple in structure, low in cost, and does not damage the broad beans.

[0007] Invention Method: A method for shelling broad beans, characterized by the following steps: First, an automatic broad bean clamping device holds the broad bean with the larger end up and the smaller end down, clamping it between its narrowest two sides. The middle of the broad bean contacts the blades, and the bean is passed between the two blades to break the skin on both wide sides, preparing it for the next step of squeezing out the bean skin. Second, manually, hold both ends of the broad bean and slide it downwards between the two blades. After sliding, for fresh broad beans, hold both ends and pull them apart to remove one side of the shell. The remaining side can then be squeezed to remove the bean intact. Mature broad beans are also shelled in the same way as fresh broad beans, but after soaking in water, they can be squeezed directly to extract the whole bean kernel.

[0008] Technical solution: A double-blade slicing device and blade holder, characterized in that it includes: a blade holder plate mounted on a blade holder base; two blade handles, one on the left and one on the right, each blade handle having a rotating hole, symmetrically mounted on the blade holder plate through their respective rotating holes, the rotating holes being located at one-third of the blade handle length and close to one end of the two blade width adjustment plates, the blade handles being rotatably mounted on the blade holder plate through the rotating holes; blades mounted on the blade handles, the back of the blades being parallel to the axial direction of the rotating double holes, and the blades being perpendicular to the plane direction of the blade handles without rotating holes; a blade pressure plate is provided below the blades, the blade pressure plate and the fixing plate on the blades limiting the cutting depth of the blades, the length of the blades extending beyond the blade pressure plate being 0.3-0.8mm, particularly preferably 0.5mm; a pair of compression springs arranged back-to-back on the blade handles for adjusting the size of the broad beans sliced; the other ends of the left and right blade handles are respectively provided with adjustment plates integrated with the blade holder plate and adjustment screws for setting the minimum width of the two blade slits; the blade holder plate is also provided with spring baffles integrated with the blade holder plate for abutting the ends of the left and right compression springs.

[0009] Beneficial effects: 1. Extremely high efficiency: With the double-blade peeler and blade holder, 1.2-1.3 kg of dried broad beans (weight before soaking) and a larger quantity of fresh broad beans can be peeled per hour, while manual peeling only yields 0.2-0.3 kg per hour, increasing efficiency by 4 to 6 times; 2. A set of double blades and blade holders is 55mm wide, and one set of blades and blade holders is equivalent to the work of 4 to 6 people. A large machine is equipped with 20 sets of blades and blade holders, which is equivalent to more than 80 people in a short time, but people cannot work for long periods of time. 3. Never cuts beans: The blade extends 0.3-0.8mm beyond the pressure plate, preferably 0.5mm, mechanically limiting the cutting depth. No matter how fast the operation, the blade cannot cut into the bean meat, completely solving the contradiction of manual peeling being "too fast and it cuts beans, too slow and it's inefficient"; 4. As a core component of automation: The blade has a compact structure and reliable operation. The rotating hole on the blade handle enables automatic opening and closing and cutting, providing a simple, low-cost, and bean-free peeling mechanism for fully automatic broad bean peeling machines; 5. Adaptive width: Back-to-back compression springs allow the blade to open and close symmetrically, automatically adapting to the size of the beans, eliminating the need for frequent adjustments in both manual and automatic modes; 6. Effortless operation: The rotating hole is located at one-third of the handle length, optimizing the lever arm, making manual operation less strenuous and requiring less driving force in automatic operation; 7. Compact structure: The adjusting plate and spring baffle are integrally formed with the blade holder plate, reducing the number of parts and making it suitable for integration into automated equipment. 8. Ready to use immediately after washing: Suitable for fresh broad beans. No soaking is required. Simply rinse with running water and peel directly. It is more time-saving and easier than soaking dried broad beans. Attached Figure Description

[0011] Figure 1 : Schematic diagram of the component structure of the double blade and tool holder of the present invention; Figure 2 This invention Figure 1 A schematic diagram of the front and side structure of the blade; the markings in the attached diagram are as follows: 1. Screw connecting the blade holder to the blade holder seat; 2. Blade holder plate; 3. Screw adjusting the distance between the left and right blades; 4. The right blade limiting plate and the blade plate are integrated; 5. Rotating shaft of the right blade handle; 6. Right blade handle; 7. The right blade handle spring return baffle and the blade plate are integrated; 8. Right baffle spring fixing shaft; 9. Blade handle return spring; 10. Spring fixing shaft on the right blade handle; 11. Blade pressure plate; 12. Blade pressure plate fixing screw; 13. Blade; 14. Blade cutting depth of bean skin: 0.3-0.8mm; 15. Spring fixing shaft on the left blade handle; 16. Left baffle spring fixing shaft; 17. The left blade handle spring return baffle and the blade plate are integrated; 18. Left blade handle; 19. Left blade handle rotating shaft; 20. The left blade limiting plate and the blade plate are integrated; 21. Broad bean; 22. Blade base; 23. Automatic broad bean clamp. Detailed Implementation

[0013] To make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments: Fresh broad beans can be peeled directly without soaking; Dried broad beans, soaking method: Take dried broad beans (each bean weighs 1.2-1.3 grams before soaking, and the total weight is 1.2-1.3 kilograms), soak them in 60°C hot water for at least 7 hours. The temperature should not exceed 60°C, otherwise it will affect the color of the beans; the time should not be less than 7 hours, otherwise the beans will not be fully soaked, the skin will not be tough enough or will stick to the flesh, affecting the peeling effect; The blade holder plate (2) is installed on the machine blade holder, and two blade handles are symmetrically installed on the blade holder plate (2). An adjusting screw (3) is installed on the upper end of the blade handle opposite to the blade (13), and an adjusting spring (9) is installed on the lower end. The double blades are installed on the blade handle, and each blade (13) is attached to the blade base (22), and then the blade (13) is attached to the blade base (22). Install the blade pressure plate (11) on the surface and install the pressure plate screw (12). The blade extends 0.3-0.8mm beyond the blade pressure plate (22). There is a gap between the blades that are symmetrically arranged in a straight line. The back of each blade (13) is parallel to the axis of the rotating hole of the blade handle on which it is installed. The plane of each blade (13) is perpendicular to the surface of the blade handle without the rotating hole. Install the adjusting screw (3) on the rotating end so that the width between the two blades is 5mm. When the machine is equipped with an automatic broad bean clamp, it clamps the middle of the two narrowest sides of the broad bean with the large end on top and the small end on the bottom. The middle of the broad bean contacts the blade. After passing between the two blades, the two wide sides of the broad bean can be cut open to prepare for the next step of squeezing the bean skin. Efficiency and quality comparison: According to actual tests, one set of blades and blade holder can complete the peeling of 1.2-1.3 kg of dry broad beans or more fresh broad beans per hour, and all beans are intact. Manual peeling yields only 0.2-0.3 kg per hour, and rapid peeling inevitably breaks the beans. In automated applications, this blade can adapt to a feeding speed of 20-30 beans per minute, with a bean breakage rate of less than 0.5%, far superior to the breakage rate of existing crushing peeling machines (which cannot peel out a whole broad bean or a whole bean).

Claims

1. A double-blade slicing device and blade holder for a fully automatic broad bean peeling machine, characterized in that, The knife holder includes:

1. Screws connecting the knife holder plate to the knife holder seat; 2. Knife holder plate; 3. Screws adjusting the distance between the left and right blades; 4. The right blade limiting plate and the blade plate are integrated; 5. Rotating shaft of the right blade handle; 6. Right blade handle; 7. Spring return baffle of the right blade handle and the blade plate are integrated; 8. Spring fixing shaft of the right baffle; 9. Blade handle return spring; 10. Spring fixing shaft on the right blade handle; 11. Blade pressure plate; 12. Screws fixing the blade pressure plate; 13. Blade; 15. Spring fixing shaft on the left blade handle; 16. Spring fixing shaft of the left baffle; 17. Spring return baffle of the left blade handle and the blade plate are integrated; 18. Left blade handle; 19. Rotating shaft of the left blade handle; 20. Left blade limiting plate and the blade plate are integrated. Multiple sets of slicing knives and knife holder devices are installed on one knife holder seat. The blade holders are symmetrically arranged on both sides, each with a rotating hole located at one-third of the blade holder length and near one end of the two blade width adjustment plates. The blade holders are rotatably mounted on the blade holder plate through the rotating holes. The blades mounted on the blade holders have their backs parallel to the axis of the rotating holes and perpendicular to the plane of the blade holder without the rotating holes. The blade pressure plate is disposed below the blade; Because the double blades cooperate with the blade clamping plate to limit the cutting depth, the width of the blades extending beyond the blade clamping plate is 0.3 mm to 0.8 mm; A pair of back-to-back compression springs are located on the blade handles to adjust the width of the left and right blades when cutting bean curd skins; an adjustment plate and adjustment screw are located at the other end of the left and right blade handles and are integrated with the blade holder plate to adjust the width of the blades in the middle. Tool holder; The aforementioned tool holder base is used to mount a tool holder plate on the tool holder base, and to mount multiple sets of slicing double blades and tool holder devices in a relatively parallel, straight line arrangement between the tool holders on the tool holder base. The blade holders are symmetrically arranged on both sides, and each blade holder has a rotating hole located at one-third of the blade holder length and near one end of the two blade width adjustment plates. The blade holders are rotatably mounted on the blade holder plate through the rotating holes. The blade is mounted on the blade holder, the back of the blade is parallel to the axial direction of the rotating hole, and the blade is perpendicular to the plane of the blade holder without the rotating hole; A blade pressure plate is located below the blade; Because the blade engages with the pressure plate to limit the cutting depth, the width of the blade extending beyond the blade pressure plate is 0.3 mm to 0.8 mm. A pair of compression springs, positioned back-to-back, are installed on the blade holder to adjust the width of the left and right blade edges. An adjustment plate, integrated with the tool holder plate and located at the other end of the left and right blade handles, along with an adjustment screw mounted on the adjustment plate, are used to set the minimum width between the two blade edges; And a spring baffle integrated with the blade holder plate, used to hold the ends of the left and right compression springs.

2. The double-blade slicing device and blade holder of the fully automatic broad bean peeling machine according to claim 1, characterized in that, The width of the blade extending beyond the blade pressure plate is 0.3mm to 0.8mm.

3. The double-blade slicing device and blade holder of the fully automatic broad bean peeling machine according to claim 1, characterized in that, The fully automatic broad bean peeling machine has a double-blade peeling device and a blade holder for peeling the skins of fresh broad beans and dried broad beans after soaking in water. The weight of a single dried broad bean before soaking is 1.2 to 1.3 grams, while fresh broad beans do not need to be soaked.

4. The double-blade slicing device and blade holder of the fully automatic broad bean peeling machine according to claim 1, characterized in that, A set of double-blade peeling device and blade holder can peel 1.2 to 1.3 kg of dried broad beans (weight before soaking) and a larger quantity of fresh broad beans per hour.

5. The double-blade slicing device and blade holder of the fully automatic broad bean peeling machine according to claim 1, characterized in that, When using the automatic broad bean peeling machine with its double-blade and blade holder, the beans will not be torn regardless of the operating speed.

6. A fully automatic broad bean peeling machine, characterized in that, The fully automatic broad bean peeling machine includes the double-blade peeling device and blade holder as described in any one of claims 1 to 5.

7. The fully automatic broad bean peeling machine according to claim 6, characterized in that, Also includes: A force-driven mechanism is connected to a rotating hole on the blade handle of the double-blade and blade holder device of the fully automatic broad bean peeling machine, for driving the blade handle to swing back and forth around the rotating hole.

8. A method for peeling broad beans, characterized in that, Using the double-blade slicing mechanism and blade holder of the fully automatic broad bean peeling machine according to any one of claims 1 to 5, the process includes the following steps: a. Soak dried broad beans in 60°C hot water for at least 7 hours; b. Place the soaked broad beans between the left and right blades; fresh broad beans can be placed directly between the left and right blades. c. Drive the blade shank to rotate around the rotating hole, so that the blade cuts into the broad bean skin to a depth of 0.3mm to 0.8mm; d. Peel off the skin to obtain the whole bean.

9. The method according to claim 9, characterized in that, The blade has a cutting depth of 0.3 mm to 0.8 mm.

10. The double-blade slicing device and blade holder of the fully automatic broad bean peeling machine according to claim 1, characterized in that, The fully automatic broad bean peeling machine described above has a double-blade design and a blade holder that are particularly suitable for peeling fresh broad beans, and its peeling effect is better than that of dried broad beans after soaking in water.

11. The double-blade and blade holder device of the fully automatic broad bean peeling machine according to claim 1, the double-blade and blade holder device of the fully automatic broad bean peeling machine can also be used alone as a simple, low-cost, and non-damaging broad bean peeling tool for catering, markets and households.

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