Grape stemmer for wine making
By combining a top cleaning system with a flexible yet rigid lever-type destemming roller and a two-stage screening structure, the problem of inconvenient cleaning and insufficient screening in existing wine destemming machines has been solved, achieving automatic cleaning and highly efficient stem separation, thus improving the quality of wine production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGXIA HAIYUERENHE WINERY CO LTD
- Filing Date
- 2025-08-26
- Publication Date
- 2026-07-24
AI Technical Summary
Existing wine destemming machines are inconvenient to clean, require manual disassembly, and lack sufficient screening capabilities, failing to effectively separate fruit stems, residual stems, rotten fruit, and broken fruit pieces, resulting in a decline in the quality of the fermented wine.
It adopts a top cleaning system, a combination of flexible and rigid lever destemming rollers, and a two-stage screening structure, including a screening screen and a vibrating screen plate, to achieve automatic cleaning and multi-stage screening, removing residual stems, rotten fruit and broken fruit particles, and improving the purity of raw materials.
The automatic cleaning of the destemming machine reduces fruit damage, improves the purity of raw materials, and ensures the quality of the fermented wine.
Smart Images
Figure CN224539420U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of winemaking equipment technology, and more particularly to a grape destemming machine for winemaking. Background Technology
[0002] Existing destemming machines have two major drawbacks: 1. Inconvenient cleaning: residual grape juice and pomace inside the equipment require manual disassembly and cleaning, which is time-consuming and prone to bacterial growth; 2. Insufficient screening: the single-stage screen only separates the stems, failing to remove residual stems, rotten fruit, and broken fruit, leading to a decline in the quality of the fermented wine. To address these issues, a grape destemming machine for winemaking is provided. Utility Model Content
[0003] This application provides a grape destemming machine for winemaking, featuring a top-mounted cleaning system with symmetrical branch pipes covering the entire top area of the destemming tank. After destemming, no manual disassembly and cleaning is required; the top branch pipe system allows for multi-angle rinsing of the inside of the destemming tank and the destemming rollers, resulting in a quick and thorough cleaning. A combination of flexible and rigid levers is used in the destemming rollers, reducing damage to the grapes and minimizing waste. A two-stage screening process using a sieve and a vibrating screen effectively separates stems, whole grapes, and impurities, removing residual stems, rotten fruit, and broken grapes, ensuring only whole grapes are used for winemaking, thus improving the purity of the raw materials and guaranteeing the quality of the fermented wine.
[0004] This application provides a grape destemming machine for winemaking, including a destemming box, a feeding hopper welded to the top of the destemming box, a support bag provided on one side of the feeding port at the top of the feeding hopper, a destemming roller provided inside the destemming box, a reducer connected to the input end of the destemming roller, a destemming motor connected to the input end of the reducer, a destemming port opened at one end of the destemming box, a perforated screen at the bottom of the destemming box, a collection trough wrapped around the outside of the screen, and a destemming guide plate provided on the collection trough located at one end of the destemming port;
[0005] The top of the destemming box is symmetrically equipped with several branch pipes, the top of which are connected to a main pipe. The input end of the main pipe is connected to a booster pump, and the input end of the booster pump is connected to a water inlet valve, which is installed on the water inlet pipe.
[0006] The destemming roller includes a roller body, multiple flexible levers and multiple rigid levers, with the multiple flexible levers and multiple rigid levers arranged alternately on the side wall of the roller body;
[0007] The bottom of the collection tank is connected to a screening box. The side wall of the screening box has two symmetrical and inclined slots. A screen plate is installed in the two symmetrical and inclined slots. The high end of the screen plate is connected to a vibrating motor through the screening box via a connecting rod. The low end of the screen plate is opened on the screening box with a discharge port and a discharge guide plate.
[0008] Furthermore, each of the four corners at the bottom of the screening box is equipped with a leg.
[0009] Furthermore, the bottom of the screening box has a waste discharge port.
[0010] Furthermore, the de-scraping motor is specifically a servo motor.
[0011] Furthermore, the reducer is specifically a D-type gearbox.
[0012] Furthermore, one of the slot sidewalls is a removable cover plate secured with bolts.
[0013] As can be seen from the above technical solution, this application provides a grape destemming machine for winemaking, including a destemming box and a container for destemming grape bunches. Specifically, the box is made of stainless steel. A feed hopper is welded to the top of the destemming box, providing a channel for feeding grape bunches into the box. A support bag is provided on one side of the feed inlet at the top of the feed hopper, serving as a liner to support the container holding the grape bunches during feeding, thereby reducing the workload of the workers. Inside the destemming box, a destemming roller rotates under the drive of a destemming motor, making a soft collision with the fed grape bunches, separating the berries from the stems. A reducer is connected to the input end of the destemming roller, forming a kinetic energy processing structure. Utilizing the high torque resistance of the gearbox, the output torque of the gearbox is increased by raising the reduction ratio, reducing the requirement for input torque and thus reducing the output power of the destemming motor to achieve energy saving. The input end of the reducer is connected to the destemming motor, forming a kinetic energy output structure for destemming... The rotation of the stem roller provides kinetic energy support. During the destemming process, it outputs kinetic energy to drive the destemming roller to rotate. One end of the destemming box has a stem outlet, through which the stems are discharged. After the grape bunch collides with the destemming roller, the grapes detach from the stems. The stems are discharged from the destemming box through this structure under the continuous agitation of the destemming roller. The bottom of the destemming box is a perforated sieve, which serves a screening function. After the grape bunch collides with the destemming roller, the grapes detach from the stems. This structure screens the grapes and stems, blocking the stems inside the destemming box and allowing the grapes to pass through the mesh of the sieve and enter the collection trough, thus achieving the purpose of screening the grapes and stems. The outside of the sieve is covered with a collection trough, which serves a collection function to collect the grapes that pass through the mesh of the sieve and prevent them from falling into the screening box. The collection trough at the stem outlet end is equipped with a stem guide plate, which serves a guiding function to guide the stems discharged through the stem outlet into the collection container for centralized processing.
[0014] The top of the destemming box is symmetrically equipped with several branch pipes, which are the pipes through which cleaning water enters the equipment. The outlets of these branch pipes are staggered at angles of 15°-60°. During cleaning, a pressurized water pump forces cleaning water into the destemming box from multiple angles, flushing the interior and the destemming rollers. The tops of these branch pipes connect to a main pipe. Under the action of the pressurized pump, cleaning water is distributed from the inlet pipe to each branch pipe. The main pipe's inlet is connected to the pressurized pump, which has a kinetic energy output structure, further rinsing the interior of the equipment. During the process, the output kinetic energy is used to pressurize the cleaning water entering through the inlet pipe, and the pressurized cleaning water is pumped to the destemming box through the main pipe and several branch pipes to flush the inside of the destemming box and the destemming roller and other structures. The input end of the pressurizing pump is connected to the inlet valve, which plays a control role and is used to control the opening and closing of the internal channel of the inlet pipe, thereby controlling the supply and closing of the cleaning water (closed during the destemming process and opened after the destemming is completed). The inlet valve is installed on the inlet pipe, which is the pipeline that supplies cleaning water to the equipment when cleaning the inside of the equipment.
[0015] The destemming roller includes a roller body (stainless steel rod), multiple flexible levers (food-grade silicone material), and multiple rigid levers (nylon material). The flexible levers and rigid levers are staggered on the side wall of the roller body. During the destemming process, the destemming motor drives the roller body to rotate, and the roller body drives the flexible levers and rigid levers to make circular motions along the roller body, making flexible collisions with the grape bunches. The flexible levers are used to shake the grapes that are easy to fall off the grape bunches, and the rigid levers are used to knock the stubborn grapes off the stems.
[0016] The bottom of the collection tank is connected to a screening box, which is a container for screening the sieved fruit pieces. It is used for assembling the discharge guide plate, vibrating motor, and sieve plate. The side wall of the screening box has two symmetrical and inclined slots for mounting the sieve plate structure, with an inclination angle of 15°. The sieve plate moves within these two symmetrical and inclined slots, performing a screening function to separate the fruit pieces and impurities passing through the sieve mesh. Intact fruit pieces are blocked above the sieve plate, while stems, rotten fruit, and broken fruit pieces pass through the sieve holes and are discharged from the discharge port. The high end of the sieve plate is connected to a vibrating motor via a connecting rod through the screening box. This kinetic energy output structure outputs kinetic energy during the destemming process, causing the sieve plate to vibrate. This causes the fruit pieces and impurities on the sieve plate to vibrate, allowing the whole fruit pieces to fall along the sieve plate and be discharged from the outlet. Impurities such as residual stems, rotten fruit, and broken fruit pieces pass through the sieve holes of the sieve plate. The screening box at the low end of the sieve plate has an outlet, which is the discharge channel for the screened whole fruit pieces. A discharge guide plate is provided at the outlet to guide the whole fruit pieces discharged through the outlet to the crushing and pressing mechanism.
[0017] In summary, the beneficial effects of this application are as follows:
[0018] 1. A cleaning system is installed at the top, with symmetrical branch pipes covering the entire top area of the destemming box. After destemming, there is no need for manual disassembly and cleaning. The top branch pipe system can be used to rinse the inside of the destemming box and the destemming roller from multiple angles, which is not only time-saving but also clean.
[0019] 2. A combination of flexible and rigid levers is used for destemming rollers, which reduces damage to the fruit and minimizes waste.
[0020] 3. A two-stage screening process using a sieve mesh and a vibrating screen plate was adopted to effectively separate fruit stems, whole fruit pieces, and impurities. Residual stems, rotten fruit, and broken fruit pieces were removed, and only whole fruit was used for brewing, which improved the purity of the raw materials and ensured the quality of the fermented wine. Attached Figure Description
[0021] To more clearly illustrate the technical solution of this application, the accompanying drawings used in the implementation examples will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained from these drawings without any creative effort.
[0022] Figure 1 This is a schematic diagram of the structure of this application.
[0023] Figure 2 This is a side view structural diagram of this application.
[0024] Figure 3 This is an enlarged structural schematic diagram of the deworming box in this application.
[0025] Figure 4 This is a schematic diagram of the destalking roller structure of this application.
[0026] Figure 5 This is a schematic diagram of the collection tank structure in this application.
[0027] Figure 6 This is a schematic diagram of the sieve plate structure of this application.
[0028] Illustration:
[0029] Among them, 1-destemming box, 2-feeding hopper, 3-support bag, 4-branch pipe, 5-main pipe, 6-water inlet valve, 7-water inlet pipe, 8-screening screen, 9-destemming roller, 91-roller body, 92-flexible lever, 93-rigid lever, 10-reducer, 11-destemming motor, 12-collection trough, 13-destemming guide plate, 14-screening box, 15-setting trough, 16-screen plate, 17-vibration motor, 18-discharge guide plate. Detailed Implementation
[0030] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.
[0031] From the above technical solutions, it can be seen that:
[0032] Example 1:
[0033] See Figures 1-6 .
[0034] A grape destemming machine for winemaking includes a destemming box 1, a container for destemming grape bunches, specifically made of stainless steel. A feed hopper 2 is welded to the top of the destemming box 1, serving as a channel for feeding grape bunches into the box. A support 3 is provided on one side of the feed inlet at the top of the feed hopper 2, acting as a support to the container holding the grape bunches during feeding, thus reducing the workload of the workers. Inside the destemming box 1 is a destemming roller 9, which rotates under the drive of a destemming motor 11, making a soft collision with the fed grape bunches, separating the berries from the stems. A reducer 10 is connected to the input end of the destemming roller 9, a kinetic energy processing structure. Utilizing the high torque resistance of the gearbox, the output torque of the gearbox is increased by increasing the reduction ratio, reducing the requirement for input torque, thereby reducing the output power of the destemming motor 11 to achieve energy saving. The input end of the reducer 10 is connected to the destemming motor 11, a kinetic energy output structure, providing kinetic energy for the rotation of the destemming roller 9. The support system outputs kinetic energy during the destemming process, driving the destemming roller 9 to rotate. One end of the destemming box 1 has a stem outlet, through which the fruit stems are discharged. When the grape bunch collides with the destemming roller 9, the grapes detach from the stems. The stems are then discharged from the destemming box 1 by the continuous movement of the destemming roller 9. The bottom of the destemming box 1 has a porous sieve 8, which serves a sieving function. This structure separates the grapes from the stems after the grape bunch collides with the destemming roller 9. The fruit stems are blocked inside the destemming box 1, allowing the fruit pieces to pass through the mesh of the screening screen 8 and enter the collection trough 12, so as to achieve the purpose of screening the fruit pieces and fruit stems. The screening screen 8 is wrapped with a collection trough 12, which plays a collecting role, used to collect the fruit pieces that pass through the mesh of the screening screen 8 and prevent them from falling into the screening box 14. A stem discharge guide plate 13 is provided on the collection trough 12 at one end of the stem discharge port, which plays a guiding role, used to guide the fruit stems discharged through the stem discharge port into the collection container for centralized processing.
[0035] The top of the destemming tank 1 is symmetrically equipped with several branch pipes 4, which are the pipes through which cleaning water enters the equipment. The outlets of the branch pipes 4 are staggered at angles of 15°-60°. During cleaning, under the action of a pressurized water pump, the cleaning water enters the destemming tank 1 from multiple angles, rinsing the interior of the destemming tank 1 and the destemming roller 9 and other structures. The tops of the branch pipes 4 are connected to a main pipe 5. Under the action of a pressurized pump, the cleaning water is distributed from the inlet pipe 7 to the pipes of each branch pipe 4. The inlet end of the main pipe 5 is connected to a pressurized pump, which has a kinetic energy output structure, to rinse the interior of the equipment. During the process, the output kinetic energy is used to pressurize the cleaning water entering through the inlet pipe 7, and the cleaning water is pumped in pressurized form through the main pipe 5 and several branch pipes 4 to the destemming box 1 to rinse the inside of the destemming box 1 and the destemming roller 9 and other structures. The input end of the pressurizing pump is connected to the inlet valve 6, which plays a control role and is used to control the opening and closing of the internal channel of the inlet pipe 7, thereby controlling the release and closing of the cleaning water (closed during the destemming process and opened after the destemming is completed). The inlet valve 6 is installed on the inlet pipe 7, which is the pipe that releases cleaning water into the equipment when cleaning the inside of the equipment.
[0036] The destemming roller 9 includes a roller body 91 (stainless steel rod), multiple flexible levers 92 (food-grade silicone material), and multiple rigid levers 93 (nylon material). The multiple flexible levers 92 and multiple rigid levers 93 are staggered on the side wall of the roller body 91. During the destemming process, the destemming motor 11 drives the roller body 91 to rotate. The roller body 91 drives the flexible levers 92 and rigid levers 93 to make circumferential movements along the roller body 91, which cause flexible collisions with the grape bunches. The flexible levers 92 are used to shake the grapes that are easy to fall off the grape bunches, and the rigid levers 93 are used to knock the stubborn grapes off the stems.
[0037] The bottom of the collection tank 12 is connected to a screening box 14, which is a container for screening the sieved fruit pieces. It is used for assembling structures such as the discharge guide plate 18, the vibration motor 17, and the screen plate 16. The side wall of the screening box 14 has two symmetrical and inclined slots 15 for setting the structure of the screen plate 16. The inclination angle is 15°. The screen plate 16 is movable in the two symmetrical and inclined slots 15, which plays a screening role. It screens the fruit pieces and impurities that come through the mesh of the screening screen 8, blocking the whole fruit pieces above the screen plate 16, and allowing impurities such as stems, rotten fruit, and broken fruit pieces to pass through the screen holes of the screen plate 16 and exit from the impurity discharge port. The screen plate 16 is connected to a vibration motor 17 via a connecting rod through the screening box 14. This motor has a kinetic energy output structure and outputs kinetic energy during the destemming process, causing the screen plate 16 to vibrate. This causes the fruit pieces and impurities on the screen plate 16 to vibrate, allowing the whole fruit pieces to fall along the screen plate 16 and be discharged from the outlet. Impurities such as residual stems, rotten fruit, and broken fruit pieces pass through the screen holes of the screen plate 16. The screening box 14 at the lower end of the screen plate 16 has an outlet, which is the discharge channel for the screened whole fruit pieces. A discharge guide plate 18 is provided at the outlet to guide the whole fruit pieces discharged through the outlet to the crushing and pressing mechanism.
[0038] In a preferred embodiment, each of the four corners of the bottom of the screening box 14 is provided with a leg to support the screening box 14.
[0039] In a preferred embodiment, the bottom of the screening box 14 is a discharge port for discharging residual stems, rotten fruit and broken fruit particles.
[0040] As a preferred embodiment, the destemming motor 11 is specifically a servo motor, which realizes closed-loop control of speed and torque, overcomes the stepping loss problem of stepper motors, has strong overload resistance, and can withstand a load three times the rated torque. It conforms to the characteristics of smooth operation of the destemming roller 9, so that the flexible lever 92 collides flexibly with the rigid lever 93 and the grape bunch, picking the grapes in an orderly manner, reducing damage to the grapes and reducing waste.
[0041] As a preferred embodiment, the reducer 10 is specifically a D-type gearbox. It utilizes the high torque resistance of the gearbox and increases the output torque of the gearbox by increasing the reduction ratio, thereby reducing the requirement for input torque and reducing the output power of the de-stressing motor 11, thus achieving the purpose of energy saving.
[0042] In a preferred embodiment, one of the sidewalls of the groove 15 is a removable cover plate fixed with bolts, which facilitates cleaning and maintenance of the screen plate 16.
[0043] Working principle:
[0044] During destemming: First, turn on the destemming motor 11 and the vibrating motor 17, allowing the destemming motor 11 to drive the destemming roller 9 to rotate, and the vibrating motor 17 to drive the screen plate 16 to vibrate. Then, feed the grape bunches into the feed hopper 2, allowing the grape bunches to collide with the flexible lever 92 and rigid lever 93 on the destemming roller 9. This causes the flexible lever 92 to shake the easily detached grapes off the stems, while the rigid lever 93 knocks the stubborn grapes off the stems. During this process, the grapes are screened by the screening screen 8 to separate the grapes. The stems are blocked in the destemming box 1 and discharged from the stem outlet under the continuous agitation of the destemming roller 9. The fruit grains are allowed to pass through the mesh of the screening screen 8 into the collection tank 12 and fall onto the screen plate 16. Finally, the screen plate 16, which is driven by the vibrating motor 17, screens the fallen fruit grains, blocking the whole fruit grains above the screen plate 16. The whole fruit grains slide down the screen plate 16 and enter the crushing and pressing mechanism through the discharge port along the discharge guide plate 18. The residual stems, rotten fruit and broken fruit grains are allowed to pass through the screen holes of the screen plate 16 and be discharged from the bottom discharge port.
[0045] When cleaning is finished after destemming: open the water inlet valve 6 and the pressure pump to let the cleaning water enter through the water inlet pipe 7. The pressure pump will spray the cleaning water in pressurized form through the main pipe 5 and several branch pipes 4 from different angles into the destemming box 1 to rinse the inside of the destemming box 1 and the destemming roller 9, sieve plate 16 and other structures, and let the rinsing wastewater be discharged from the waste outlet.
[0046] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope of this application is indicated by the claims.
[0047] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The embodiments of this application described above do not constitute a limitation on the scope of protection of this application.
Claims
1. A grape destemming machine for winemaking, comprising a destemming box (1), wherein a feed hopper (2) is welded to the top of the destemming box (1), a support bag (3) is provided on one side of the feed inlet at the top of the feed hopper (2), a destemming roller (9) is provided inside the destemming box (1), a reducer (10) is connected to the input end of the destemming roller (9), a destemming motor (11) is connected to the input end of the reducer (10), a destemming outlet is provided at one end of the destemming box (1), a perforated sieve (8) is provided at the bottom of the destemming box (1), a collection trough (12) is provided on the outside of the sieve (8), and a destemming guide plate (13) is provided on the collection trough (12) located at one end of the destemming outlet, characterized in that: The top of the dehiscence box (1) is symmetrically provided with several branch pipes (4), the top of several branch pipes (4) are connected to a main pipe (5), the input end of the main pipe (5) is connected to a pressure pump, the input end of the pressure pump is connected to a water inlet valve (6), and the water inlet valve (6) is installed on the water inlet pipe (7). The destemming roller (9) includes a roller body (91), a plurality of flexible levers (92) and a plurality of rigid levers (93), wherein the plurality of flexible levers (92) and the plurality of rigid levers (93) are alternately arranged on the side wall of the roller body (91); The bottom of the collection trough (12) is connected to a screening box (14). The side wall of the screening box (14) is provided with two symmetrical and inclined setting slots (15). A screen plate (16) is movably installed in the two symmetrical and inclined setting slots (15). The high end of the screen plate (16) is connected to a vibration motor (17) through the screening box (14) via a connecting rod. The low end of the screen plate (16) is provided with a discharge port on the screening box (14). A discharge guide plate (18) is provided at the discharge port.
2. The grape destemming machine for winemaking according to claim 1, characterized in that, The screening box (14) has a leg at each of the four corners of its bottom.
3. The grape destemming machine for winemaking according to claim 1, characterized in that, The bottom of the screening box (14) is a discharge port.
4. The grape destemming machine for winemaking according to claim 1, characterized in that, The de-scraping motor (11) is specifically a servo motor.
5. A grape destemming machine for winemaking according to claim 1, characterized in that, The reducer (10) is specifically a D-type gearbox.
6. A grape destemming machine for winemaking according to claim 1, characterized in that, One of the setting slots (15) has a removable cover plate that is fixed with bolts on its sidewall.