Bread proofing box

Abstract

This utility model relates to a bread proofing box, belonging to the technical field of bread proofing equipment. The bread proofing box includes a fixed base and a box shell. Inside the box is a proofing assembly, including a movable proofing rack, connecting rods, and a rotating disc. A drive mechanism is mounted on the side wall, including a protective box, a synchronization component, and a servo motor. The bottom has a heating assembly, including a mounting box, a PTC heater, a mounting bracket, and an axial flow fan. A humidification assembly is also provided, including a distribution pipe, atomizing nozzles, a rear box, a water tank, a liquid extraction pipe, a pressure pump, and a liquid delivery pipe. This equipment can drive the movable proofing rack to move dynamically, ensuring uniform dough proofing, precise temperature and humidity control, a high degree of automation, convenient and safe operation, improved yield and production efficiency, reduced costs, and meets the needs of high-quality mass production.

Description

Technical Field

[0001] This utility model belongs to the technical field of bread proofing equipment, specifically relating to a bread proofing box. Background Technology

[0002] In the bread production process, proofing is a core step that determines the bread's texture, appearance, and quality. It requires dough fermentation to be completed in a suitable temperature and humidity environment (28-32℃, 75%-85% humidity). However, current traditional bread proofing boxes have many technical shortcomings, making it difficult to meet the modern baking industry's demands for "mass production, consistent quality, high efficiency, and convenience."

[0003] Traditional proofing boxes typically have fixed proofing racks, which can lead to localized temperature and humidity differences due to poor air circulation (e.g., low humidity at the top and high temperature at the bottom). This results in uneven proofing of dough within the same box, with some dough under-proofing and others over-proofing, resulting in a yield of only 70%-80%. Furthermore, the need for manual opening of the box door and periodic turning of the baking trays can disrupt the internal temperature and humidity environment, further affecting the proofing effect. Utility Model Content

[0004] The purpose of this invention is to provide a bread proofing box with a simple structure and reasonable design in order to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A bread proofing box includes a fixed base, a box shell fixedly mounted on the top of the fixed base, a proofing component provided on the inner side wall of the box shell, the proofing component including a plurality of movable proofing racks movably connected inside the box shell, a heating component cooperating with the proofing component provided at the bottom of the box shell, a humidifying component cooperating with the proofing component provided on the box shell, and a driving mechanism cooperating with the proofing component provided on the side wall of the box shell.

[0007] As a further optimization of this utility model, the driving mechanism includes a protective box fixedly installed on the side wall of the housing shell, a plurality of synchronization components are rotatably provided on the inner side wall of the protective box, a servo motor is fixedly installed on the side wall of the protective box, and the input end of any of the synchronization components is fixedly sleeved on the output end of the servo motor.

[0008] As a further optimization of this utility model, each of the two side walls of the movable proofing rack is rotatably connected to a crank connecting rod, each of the crank connecting rods is rotatably connected to a rotating disk rotatably connected to both sides of the inner side wall of the housing, each of the crank connecting rods is rotatably connected to the eccentric part of the corresponding rotating disk, and the side wall of the rotating disk adjacent to the drive mechanism is fixedly connected to a transmission rod that rotatably penetrates the side wall of the protective box, and the output end of each of the synchronization components is fixedly sleeved on the outer side wall of the corresponding transmission rod.

[0009] As a further optimization of this utility model, the heating assembly includes a mounting box fixedly installed at the bottom of the inner side wall of the housing, a PTC heater fixedly installed on the inner side wall of the mounting box, a mounting frame fixedly installed on the top of the mounting box, a plurality of exhaust slots being opened through the top of the mounting frame, and an axial flow fan fixedly installed on the top of the mounting frame.

[0010] As a further optimization of this utility model, the humidification component includes a diversion pipe fixedly installed on the rear side of the inner wall of the outer shell of the housing. Each liquid outlet end of the diversion pipe is fixedly connected to an atomizing nozzle. A rear box is fixedly installed on the rear side wall of the outer shell of the housing. A water tank is fixedly installed on the inner side wall of the rear box. A liquid extraction pipe is connected to the liquid outlet end of the water tank. A pressure pump installed inside the rear box is fixedly connected to the other end of the liquid extraction pipe. The output end of the pressure pump is connected to a delivery pipe. The other end of the delivery pipe is connected to the liquid inlet end of the diversion pipe.

[0011] The beneficial effects of this utility model are as follows:

[0012] 1. This utility model achieves dynamic proofing through "crank connecting rod + reciprocating arc motion": the movable proofing rack moves along an arc trajectory under the drive mechanism, so that the dough dynamically contacts the temperature and humidity of different areas in the box, completely eliminating local environmental differences and improving the uniformity of dough proofing; there is no need to manually turn the baking tray, avoiding temperature and humidity fluctuations in the box, and reducing manual intervention costs. Compared with traditional equipment, the yield is improved, which is suitable for mass production needs.

[0013] 2. This utility model features a PTC heater with a temperature control error of only ±1℃, which, combined with an axial flow fan, rapidly diffuses heat, improving the temperature uniformity within the chamber. The atomizing nozzle generates 5-10μm fine water mist that quickly integrates into the air without adhering to the dough surface, maintaining a stable humidity of 75%-85%. The temperature and humidity are linked for control, requiring no manual intervention. Compared to traditional equipment, this results in improved consistency in dough proofing quality, leading to softer bread with a more uniform appearance after baking. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2This is a partial cross-sectional structural schematic diagram of the present invention;

[0016] Figure 3 This is a schematic diagram of the internal structure of the proofing box of this utility model;

[0017] Figure 4 This is a utility model Figure 3 A schematic diagram of the rear view structure;

[0018] Figure 5 This is a utility model Figure 1 A schematic diagram of the rear view structure.

[0019] In the diagram: 1. Fixed base; 2. Housing shell; 3. Drive assembly; 301. Protective box; 302. Servo motor; 303. Synchronization assembly; 4. Proofing assembly; 401. Movable proofing rack; 402. Rotating disc; 403. Crank connecting rod; 5. Heating assembly; 501. Mounting box; 502. Axial flow fan; 503. Mounting bracket; 504. PTC heater; 6. Humidification assembly; 601. Diverter pipe; 602. Atomizing nozzle; 603. Infusion pipe; 604. Pressure pump; 605. Suction pipe; 606. Water tank; 607. Rear box. Detailed Implementation

[0020] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0021] Example 1: As Figure 1 , Figure 2 and Figure 5 As shown, a bread proofing box includes a fixed base 1, which serves as the base support. The fixed base 1 is made of 304 stainless steel and has an anti-slip rubber pad bonded to the bottom to effectively enhance the friction between the equipment and the ground, preventing the equipment from shaking due to component movement during the proofing process. The top of the fixed base 1 is bolted to the outer shell 2 of the box. The outer shell 2 has a double-layer composite structure. The inner layer is made of food-grade stainless steel to ensure compliance with food safety standards, and the outer layer is made of cold-rolled steel to improve structural strength. The space between the two layers is filled with 50mm thick high-density insulation cotton, which can significantly reduce the loss of temperature and humidity inside the box and provide a stable internal environment for dough proofing.

[0022] like Figure 1 - Figure 4As shown, a protective box 301 is fixedly installed on the outer wall of the outer casing 2 using hexagonal bolts. The protective box 301 is made of cold-rolled steel plate welded together and has an anti-rust coating, which can effectively protect the internal transmission components from external dust contamination and accidental impact. Several synchronization components 303 are rotatably mounted on the inner wall of the protective box 301 via deep groove ball bearings. Each synchronization component 303 consists of a driving synchronization pulley, a driven synchronization pulley, and a polyurethane synchronization belt. The synchronization pulleys are made of 45# steel with heat treatment to improve wear resistance, and the synchronization belt surface has anti-slip teeth to ensure slip-free power transmission. The outer wall of the protective box 301... A servo motor 302 is fixedly mounted on the motor bracket. The servo motor 302 is a model with a braking function. Its output shaft passes through the side wall of the protective box 301 and is fixedly connected to the input end active synchronous wheel of any synchronous component 303 by a key. When the servo motor 302 starts, it can directly drive the active synchronous wheel of the synchronous component 303 to rotate, and then drive the driven synchronous wheel of the same component to rotate through the synchronous belt. At the same time, adjacent synchronous components 303 are linked through the synchronous belt, and finally realize the synchronous operation of all synchronous components 303, providing consistent power for the movement of the subsequent ignition component 4.

[0023] like Figure 1 - Figure 4As shown, several movable proofing racks 401 are movably connected along the height direction inside the outer shell 2 of the box. The movable proofing rack 401 is a rectangular metal frame welded from 20mm×20mm stainless steel square tubing. The top is covered with a stainless steel mesh plate with a mesh size of 10mm×10mm to facilitate the penetration of temperature and humidity, and at the same time, it can stably place baking trays to support the dough to be proofed. Each movable proofing rack 401 has a crank connecting rod 403 rotatably connected to the left and right side walls by a pin. The crank connecting rod 403 is made of solid stainless steel. The steel rod has a diameter of 12mm. Its end furthest from the movable proofing rack 401 is rotatably connected to the eccentric point of the rotating disk 402 via pins. This means the connection point and the center of the rotating disk 402 have a preset eccentricity, which is set to 30-50mm according to the reciprocating arc-shaped motion trajectory requirements of the movable proofing rack. The rotating disk 402 is a circular steel plate with a diameter of 100mm, rotatably connected to the left and right sides of the inner wall of the outer shell 2 via thrust ball bearings. The rotating disks 402 on the left and right sides are symmetrically distributed, forming an "eccentric rotating disk..." The crank-connecting rod linkage structure of "heart connection - crank-connecting rod - movable proofing frame" has transmission rods welded to the outer wall of the rotating disk 402, which is located on the side of the protective box of the housing 2, near the drive mechanism 3. The transmission rods are stainless steel round rods with a diameter of 15mm. A sealing ring is installed at the end of the transmission rod away from the rotating disk 402 through the side wall of the protective box 301 to prevent leakage of temperature and humidity inside the box. The driven synchronous pulley at the output end of each synchronization component 303 is fixedly connected to the sleeve by a key. Located on the outer wall of the corresponding transmission rod, when the synchronization component 303 is running, the driven synchronization wheel drives the transmission rod to rotate, which in turn drives the rotating disk 402 to rotate around its own center. Since the crank connecting rod 403 is connected to the eccentric part of the rotating disk 402, the circular motion of the rotating disk 402 is converted into the reciprocating arc motion of the movable proofing rack 401 through the crank connecting rod 403, so that the dough on the movable proofing rack 401 can dynamically contact the temperature and humidity of different areas in the box, completely solving the problem of uneven proofing in local areas of the traditional fixed proofing rack.

[0024] like Figures 1-4 As shown, a mounting box 501 is bolted to the bottom of the inner wall of the outer casing 2. The mounting box 501 is a stainless steel shell with an open top and sufficient space reserved inside for installing heating components. A PTC heater 504 is fixed to the inner wall of the mounting box 501 with clips. The PTC heater 504 is a 1500W rated power model, characterized by rapid heating (raising from room temperature to 32℃ in only 5 minutes), high temperature control accuracy (±1℃ error), and safe use without open flame. The temperature is monitored in real time by a temperature sensor installed inside the mounting box 501. A mounting bracket 503 is bolted to the top of the mounting box 501. The mounting bracket 503 is a rectangular metal frame with several evenly spaced exhaust slots on its top to facilitate heat circulation. An axial flow fan 502 is fixed to the top of the mounting bracket 503 via a motor mount. The axial flow fan 502 has an air volume of 120m³ / h.3 The / h model can draw out the heat generated by the PTC heater 504 in the installation box 501 evenly through the exhaust duct and blow it into the interior of the outer shell 2 of the box when it is started, so that the temperature inside the box can quickly reach the preset value and be evenly distributed. The ventilation grille opened on the rear side wall of the outer shell 2 enables the air circulation inside the outer shell 2 to avoid local temperature being too high or too low, which would affect the proofing effect.

[0025] like Figure 4 and Figure 5 As shown, a diversion pipe 601 is fixedly installed on the rear side of the inner wall of the outer casing 2 using pipe clamps. The diversion pipe 601 is a stainless steel pipe, vertically distributed along the height direction of the outer casing 2. Several liquid outlets are evenly distributed on its side wall, and each liquid outlet is fixedly installed with an atomizing nozzle 602 via a threaded connection. The atomizing nozzle 602 is a high-pressure atomizing type with an atomizing particle size of 5-10μm, which can convert water into fine water mist and spray it evenly inside the outer casing 2. A rear box 607 is fixedly installed on the rear wall of the outer casing 2 using bolts. The rear box 607 is a closed shell made of cold-rolled steel plate, used to install the power components and water storage components of the humidification assembly. A water tank 606 is fixedly installed on the inner wall of the rear box 607 via a bracket. The water tank 606 is made of food-grade PE material and has a water inlet with a sealed cap on the top for easy periodic replenishment of humidification water. A suction pipe 605 is connected to the bottom liquid outlet of the water tank 606 via a flexible hose, and the other end of the suction pipe 605 is fixedly connected via a quick connector. A pressure pump 604 is connected and is bolted to the inside of the rear box 607. A miniature high-pressure pump with a rated pressure of 0.8MPa is selected to pressurize and extract water from the water tank 606. The output end of the pressure pump 604 is connected to an infusion tube 603 via a flexible hose. The infusion tube is a high-pressure steel wire hose with an inner diameter of 8mm. The other end of the infusion tube 603 passes through the rear side wall of the outer shell 2 of the box and is fitted with a waterproof sealing ring. It is connected to the inlet end of the diversion pipe 601 via a thread. When the pressure pump 604 is started, the water in the water tank 606 enters the diversion pipe 601 in sequence through the extraction pipe 605, the pressure pump 604, and the infusion tube 603. Then, it is atomized by each atomizing nozzle 602 and sprayed into the box. The humidity inside the box is monitored in real time by a humidity sensor installed inside the outer shell 2 of the box. It works in conjunction with the temperature sensor and the heating component 5 to maintain a stable temperature and humidity inside the box. The humidification component 6 and the heating component 5 are both controlled by an external controller that is electrically connected to them.

[0026] It should be noted that, in use, when this bread proofing box is started, the servo motor 302 on the outside of the protective box 301 operates, and its output shaft drives the active synchronous wheel of the connected synchronous component 303 to rotate. The driven synchronous wheel is driven to rotate through the polyurethane synchronous belt. Adjacent synchronous components 303 are linked by the synchronous belt to realize the synchronous operation of all synchronous components. The driven synchronous wheel of the synchronous component 303 drives the sleeved transmission rod to rotate. The transmission rod drives the rotating disk 402 on the inside of the box shell 2 to rotate around the center. Because one end of the crank connecting rod 403 is connected to the movable proofing rack 401 and the other end is eccentrically connected to the rotating disk 402, the circular motion of the rotating disk is converted into the reciprocating arc motion of the movable proofing rack (the angle with the ground is ≤45°) through the crank connecting rod, which prevents the movable proofing rack from tipping over and ensures that the baking tray and dough on the rack move dynamically and are evenly contacted with the temperature and humidity inside the box.

[0027] At the same time, the PTC heater 504 inside the mounting box 501 at the bottom of the outer shell 2 is activated, and the temperature is quickly raised to the optimal proofing temperature of 28-32℃. The axial flow fan 502 on the mounting rack 503 operates synchronously, and the heat inside the mounting box is extracted through the exhaust duct at the top of the mounting rack and blown to various areas inside the box, so that the temperature can spread quickly and evenly with an error of ±1℃, avoiding local overheating or overcooling from affecting the proofing of the dough.

[0028] The pressurization pump 604 inside the rear chamber 607 starts, drawing pure water from the water tank 606 through the liquid extraction pipe 605. After pressurization, the water is delivered to the distribution pipe 601 inside the outer shell 2 of the chamber through the infusion pipe 603. The distribution pipe distributes the water to each atomizing nozzle 602, which atomizes the water into fine water mist of 5-10μm and sprays it evenly inside the chamber, maintaining the humidity at the optimal humidity of 75%-85% for aging. This works in conjunction with the heating components to create a stable temperature and humidity environment.

[0029] The equipment operates according to the set parameters. The movable proofing rack continuously reciprocates in an arc (angle ≤ 45°), ensuring that the dough is dynamically exposed to uniform temperature and humidity. Once the set proofing time is reached, the equipment automatically stops all components and a buzzer alarm sounds. The user can then open the door and remove the baking tray, achieving a highly efficient proofing process of "dynamic proofing + precise temperature and humidity control".

[0030] The above-described embodiments are merely examples of several implementations of this utility model. The descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A bread proofing box, comprising a fixed base (1), wherein a box shell (2) is fixedly mounted on the top of the fixed base (1), characterized in that: The inner wall of the outer shell (2) is provided with a proofing component (4). The proofing component (4) includes several sets of movable proofing racks (401) movably connected inside the outer shell (2). The bottom of the outer shell (2) is provided with a heating component (5) that cooperates with the proofing component (4). The outer shell (2) is provided with a humidifying component (6) that cooperates with the proofing component (4). The side wall of the outer shell (2) is provided with a driving mechanism (3) that cooperates with the proofing component (4).

2. The bread proofing box according to claim 1, characterized in that: The drive mechanism (3) includes a protective box (301) fixedly installed on the side wall of the outer shell (2). The inner side wall of the protective box (301) is provided with a plurality of synchronization components (303). A servo motor (302) is fixedly installed on the side wall of the protective box (301). The input end of any of the synchronization components (303) is fixedly sleeved on the output end of the servo motor (302).

3. A bread proofing box according to claim 2, characterized in that: Each of the active proofing racks (401) has a crank connecting rod (403) rotatably connected to both sides of its side wall. Each of the crank connecting rods (403) is rotatably connected to a rotating disk (402) rotatably connected to both sides of the inner side wall of the outer shell (2). Each of the crank connecting rods (403) is rotatably connected to the eccentric part of the corresponding rotating disk (402). The side wall of the rotating disk (402) near the drive mechanism (3) is fixedly connected to a transmission rod that rotatably penetrates the side wall of the protective box (301). The output end of each of the synchronization components (303) is fixedly sleeved on the outer side wall of the corresponding transmission rod.

4. A bread proofing box according to claim 3, characterized in that: The heating assembly (5) includes a mounting box (501) fixedly installed on the bottom of the inner side wall of the outer shell (2). A PTC heater (504) is fixedly installed on the inner side wall of the mounting box (501). A mounting bracket (503) is fixedly installed on the top of the mounting box (501). Several exhaust slots are opened through the top of the mounting bracket (503). An axial flow fan (502) is fixedly installed on the top of the mounting bracket (503).

5. A bread proofing box according to claim 4, characterized in that: The humidification component (6) includes a diversion pipe (601) fixedly installed on the rear side of the inner wall of the outer shell (2). Each outlet end of the diversion pipe (601) is fixedly connected to an atomizing nozzle (602). A rear box (607) is fixedly installed on the rear side wall of the outer shell (2). A water tank (606) is fixedly installed on the inner side wall of the rear box (607). A liquid extraction pipe (605) is connected to the outlet end of the water tank (606). A pressure pump (604) installed inside the rear box (607) is fixedly connected to the other end of the liquid extraction pipe (605). The output end of the pressure pump (604) is connected to a delivery pipe (603). The other end of the delivery pipe (603) is connected to the inlet end of the diversion pipe (601).

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