Dough sheet rolling machine

Abstract

The utility model provides a dough sheet rolling machine. The dough sheet rolling machine comprises a support; the twisting and rolling device comprises a twisting and rolling forming assembly supported by the support, the twisting and rolling forming assembly comprises a sliding component and a lifting roller installed on the sliding component, the lifting roller lifts one part of the twisting and rolling belt from the supporting plate, when the lifting roller passes through the twisting and rolling belt where the dough sheet is located, the part of the twisting and rolling belt is lifted, and the dough sheet is rolled up by the lifted twisting and rolling belt; the driving device can drive the twisting and rolling forming assembly to move along the supporting plate; and the positioning device comprises a first positioning assembly and a second positioning assembly, when the twisting and rolling forming assembly passes through the first positioning assembly, the second positioning assembly positions the twisting and rolling belt on the supporting plate, and when the twisting and rolling forming assembly passes through the second positioning assembly, the first positioning assembly positions the twisting and rolling belt on the supporting plate. According to the dough sheet rolling machine, the rolling efficiency can be improved, the labor intensity of workers can be reduced, and meanwhile, the consistency of the shapes of rolled rolls can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to food machinery field, concretely is a kind of sheet rolling machine. BACKGROUND

[0002] Some food, for example, croissant needs to be rolled into a roll, and then baked. Rolling is generally done manually, with very low efficiency and high labor intensity. Moreover, different workers have different strength, and the shape of the final roll is also quite different, affecting the consistency of the product. SUMMARY

[0003] The utility model provides a kind of sheet rolling machine, can improve the efficiency of rolling, reduce the labor intensity of worker, simultaneously can improve the shape consistency of the roll rolled.

[0004] The utility model discloses a sheet rolling machine, comprising:

[0005] A support frame;

[0006] A rolling device, comprising a rolling belt supported by the support frame in a closed loop and a rolling forming assembly cooperating with the rolling belt, wherein a horizontal section of the rolling belt is used to carry the sheet, and the rolling forming assembly comprises a sliding component slidable along the support plate and a lifting roller mounted on the sliding component, the lifting roller is horizontal and its axial direction is perpendicular to the sliding direction of the sliding component, the lifting roller is rotatable relative to the sliding component, and the lifting roller lifts a part of the rolling belt from the support plate, when the lifting roller passes through the rolling belt where the sheet is located, the part of the rolling belt is lifted, and the lifted rolling belt rolls up the sheet;

[0007] A driving device, which can drive the rolling forming assembly to move along the support plate;

[0008] A positioning device, comprising a first positioning assembly and a second positioning assembly, the first positioning assembly is located upstream of the sheet to be rolled, and the second positioning assembly is located downstream of the sheet to be rolled, when the rolling forming assembly passes through the first positioning assembly, the second positioning assembly positions the rolling belt on the support plate, and when the rolling forming assembly passes through the second positioning assembly, the first positioning assembly positions the rolling belt on the support plate.

[0009] As a preferred embodiment, the rolling forming assembly further comprises a curling roller mounted on the sliding component and rotatable relative to the sliding component, the curling roller is parallel to the lifting roller, in the vertical direction, the curling roller is closer to the support plate, and in the direction of the sliding component, the curling roller is located upstream of the lifting roller, the rolling belt passes from below the curling roller to downstream and extends upward from the curling roller to the lifting roller, and then passes over the lifting roller and returns to the support plate.

[0010] As a preference, the curling roller is detachably mounted with the sliding member, and the sliding member can replace curling rollers of different radii.

[0011] As a preference, the rolling forming assembly further comprises a pressing roller mounted on the sliding member and rotatable relative to the sliding member, the pressing roller is parallel to the lifting roller, and the rolling belt is pressed downward by the pressing roller to the support plate after passing over the lifting roller.

[0012] As a preference, the sliding member is provided with an adjusting groove, the wall of the adjusting groove is provided with a threaded hole, the lifting roller is located in the adjusting groove, the portion located in the adjusting groove is provided with a threaded hole, and the rolling forming assembly further comprises an adjusting bolt, the adjusting bolt is matched with the threaded holes of the adjusting groove and the lifting roller respectively, and the position of the lifting roller relative to the curling roller in the direction of sliding of the sliding member and the up-down position of the lifting roller are adjusted by adjusting the matched position of the adjusting bolt and the threaded hole of the adjusting groove.

[0013] As a preference, the sliding member comprises a horizontal part, a first inclined part and a second inclined part, the first inclined part extends obliquely upward from the horizontal part downstream in the direction of sliding of the sliding member, the second inclined part extends obliquely upward from the first inclined part upstream in the direction of sliding of the sliding member, the curling roller and the pressing roller are both arranged on the horizontal part, and the curling roller is located downstream of the pressing roller in the direction of sliding of the sliding member, and the adjusting groove is arranged on the second inclined part.

[0014] As a preference, the driving device comprises a motor fixed on the support and two sets of transmission mechanisms, each set of transmission mechanism comprises a driving sprocket rotating under the drive of the motor, a chain matched with the driving sprocket and a plurality of driven sprockets matched with the chain, the two sets of transmission mechanisms are respectively mounted on the two sides of the support, the motor drives the driving sprockets of the two sets of transmission mechanisms to rotate synchronously, and the two ends of the sliding member are respectively fixed with the chains on the two sides and move under the drive of the chains.

[0015] As preferred, the first positioning assembly and the second positioning assembly each comprise a fixed part fixed with the support frame, a lifting part movable up and down relative to the fixed part, a positioning driving device driving the lifting part to move up and down, and a sensor detecting the rolling forming assembly; the rolling machine further comprises a control device, the sensor of the first positioning assembly and the sensor of the second positioning assembly are located between the fixed part of the first positioning assembly and the fixed part of the second positioning assembly, and the sensor of the first positioning assembly is located upstream of the sensor of the second positioning assembly; when the control device receives the signal from the sensor of the first positioning assembly that the rolling forming assembly is detected, the up-down driving device of the first positioning assembly is controlled to drive the lifting part of the first positioning assembly to move down to position the rolling belt on the support plate, and the up-down driving device of the first positioning assembly is controlled to drive the lifting part of the first positioning assembly to move up when a set condition is met; when the control device receives the signal from the sensor of the second positioning assembly that the rolling forming assembly is detected, the up-down driving device of the second positioning assembly is controlled to drive the lifting part of the second positioning assembly to move up to allow the rolling forming assembly to pass through, and the up-down driving device of the second positioning assembly is controlled to drive the lifting part of the first positioning assembly to move down when a set condition is met.

[0016] As preferred, the fixed part comprises a fixed plate and two support legs connected with the lower end of the fixed plate, the two support legs are respectively located on both sides of the rolling belt and are respectively fixed with the support frame, the lower end of the fixed plate and the rolling belt form a passing space allowing the rolling forming assembly to pass through, and the lifting part moves upward under the driving of the positioning driving device to open the passing space, and the lifting part moves downward to block the passing space and press the rolling belt on the support plate.

[0017] As preferred, the rolling belt is provided with ventilation holes, and the rolling machine further comprises a negative pressure device, the negative pressure device comprises a negative pressure pump and a negative pressure box body installed in the support plate, the negative pressure pump is in communication with the internal cavity of the negative pressure box body through a pipeline, and the upper wall of the negative pressure box body is provided with a plurality of adsorption through holes for adsorbing the rolling sheet on the rolling belt.

[0018] As preferred, the rolling machine comprises a plurality of rolling devices and a positioning device corresponding to each rolling device, and the rolling belts of all the rolling devices are parallel.

[0019] Compared with the prior art, the rolling machine has the following beneficial effects:

[0020] The face sheet rolling machine of the utility model can automatically complete the rolling of the face sheet through the multi-circle circulation movement of the rolling forming assembly, the staff only needs to place the face sheet between the first positioning assembly and the second positioning assembly before rolling, and the face sheet rolling machine can complete the rolling, liberating a large amount of labor and improving the rolling efficiency. Meanwhile, the rolling strength is the same each time, and the shape of all the rolls can be guaranteed to be consistent to the maximum extent. In addition, the rolling forming assembly only moves along one direction of the supporting plate, and does not need to change the direction, and the operation is more reliable and efficient. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a perspective structural schematic view of the face sheet rolling machine of the utility model.

[0022] Figure 2 It is a perspective structural schematic view of the face sheet rolling machine of the utility model. Figure 1

[0023] Figure 3 It is an exploded structural schematic view of the face sheet rolling machine of the utility model. Figure 1

[0024] Figure 4 It is a structural schematic view of the face sheet rolling machine of the utility model in the state of just completing rolling and passing through the second positioning device.

[0025] Figure 5 It is a structural schematic view of the face sheet rolling machine of the utility model in the state of being close to the first positioning device.

[0026] Figure 6 It is a perspective structural schematic view of the rolling forming assembly of the utility model.

[0027] Figure 7 It is a structural schematic view of the face sheet rolling machine of another embodiment of the utility model.

[0028] REFERENCE NUMERALS

[0029] 1 support, 11 supporting frame body, 12 supporting plate;

[0030] 2 rolling device, 21 rolling belt, 211 air vent, 22 rolling forming assembly, 221 sliding part, 2211 horizontal part, 2212 first inclined part, 2213 second inclined part, 2214 adjusting groove, 222 lifting roller, 223 curling roller, 224 pressing roller, 225 adjusting bolt;

[0031] 3 driving device, 31 motor, 32 driving sprocket, 33 driven sprocket, 34 chain;

[0032] ​​4 first positioning assembly, 41 fixed component, 411 fixed plate, 412 support leg, 42 lifting component, 43 positioning drive device, 44 inductor;

[0033] 5 second positioning assembly, 51 fixed component, 511 fixed plate, 512 support leg, 52 lifting component, 53 positioning drive device, 54 inductor;

[0034] 6 negative pressure device, 61 negative pressure pump, 62 negative pressure box, 63 pipeline;

[0035] 7 sheet. DETAILED DESCRIPTION

[0036] The utility model provides a sheet rolling machine, such as Figure 1 And Figure 2 As shown in the figure, the sheet rolling machine comprises a support 1, a rolling device 2, a driving device 3 and a positioning device. In this embodiment, the sheet rolling machine comprises a rolling device 2, a driving device 3 and a positioning device. The support 1 comprises a support frame 11 and a support plate 12 fixed to the support frame 11, and the support plate 12 is in the form of a closed loop. In this embodiment, the support 1 comprises four parts, which are connected end to end and form a rectangle in the vertical plane, and the corners of the rectangle are rounded. The support plate 12 is arranged around the outer wall of the support 1 and forms a rectangular ring. The rolling device 2 comprises a rolling belt 21 in the form of a closed loop around the outer wall of the support plate 12 and a rolling forming assembly 22 cooperating with the rolling belt 21. In this embodiment, the rolling belt 21 is also in the form of a rectangular ring. One section of the rolling belt 21 is used to carry the sheet 7, as shown in Figure 1 The section of the rolling belt 21 is horizontal and located at the upper part. The rolling forming assembly 22 comprises a sliding component 221 that can slide along the support plate 12 and a lifting roller 222 installed on the sliding component 221. The lifting roller 222 is horizontal and its axial direction is perpendicular to the sliding direction of the sliding component 221. The lifting roller 222 can rotate relative to the sliding component 221. The lifting roller 222 lifts a part of the rolling belt 21 from the support plate 12. When the lifting roller 222 passes through the rolling belt 21 where the sheet 7 is located, it lifts the part of the rolling belt 21. The lifted rolling belt 21 rolls up the sheet 7 and pushes the rolled sheet to move. When the sheet moves to the corner of the rectangle, it falls from the rolling belt 21 and is collected for the next procedure. In another embodiment, the support plate 12 can also be arranged in the form of a triangle or a pentagon, and the rolling belt 21 is correspondingly arranged in the form of a triangle or a pentagon. In yet another embodiment, the support plate 12 has a horizontal section and a semicircular section located below the horizontal section and connected to the horizontal section, and the rolling belt 21 also comprises a horizontal section and a semicircular section.

[0037] The positioning device comprises a first positioning assembly 4 and a second positioning assembly 5, the first positioning assembly 4 is located upstream of the dough sheet 7 to be rolled, and the second positioning assembly 5 is located downstream of the dough sheet 7 to be rolled, when the rolling forming assembly 22 passes through the first positioning assembly 4, as shown in Figure 5 Fig. 2, the second positioning assembly 5 positions the rolling belt 21 on the support plate 12, when the rolling forming assembly 22 passes through the second positioning assembly 5, as shown in Figure 4 Fig. 3, the first positioning assembly 4 positions the rolling belt 21 on the support plate 12, in this way, the first positioning assembly 4 and the second positioning assembly 5 prevent the rolling belt 21 from sliding along the support plate 12. The driving device 3 can drive the rolling forming assembly 22 to move along the support plate 12, and the rolling forming assembly 22 can move in a cycle along the support plate 12, and one rolling action is completed after each cycle.

[0038] The dough sheet rolling machine can automatically complete the rolling of the dough sheet 7 through the multiple-cycle movement of the rolling forming assembly 22, and the staff only needs to place the dough sheet 7 between the first positioning assembly 4 and the second positioning assembly 5 before rolling, and the dough sheet rolling machine can complete the rolling, thereby liberating a large amount of labor and improving the rolling efficiency. Meanwhile, the rolling force is the same each time, and the shape of all the rolls can be guaranteed to be consistent to the maximum extent. In addition, the rolling forming assembly 22 only moves in one direction along the support plate 12, and does not need to change the direction, and the operation is more reliable and efficient.

[0039] The rolling forming assembly 22 further comprises a curling roller 223 which is installed on the sliding component 221 and can rotate relative to the sliding component 221, as shown in Figure 6 Fig. 4, the curling roller 223 is parallel to the lifting roller 222, in the up-down direction, the curling roller 223 is closer to the support plate 12, and in the direction in which the sliding component 221 slides, the curling roller 223 is located upstream of the lifting roller 222, the rolling belt 21 passes from below the curling roller 223 to downstream and extends upwards until it passes around the lifting roller 222 from above the lifting roller 222 and then returns to the support plate 12 downwards. The curling roller 223 straightens the rolling belt 21 between the support plate 12 and the lifting roller 222, and supports an included angle between the part of the rolling belt 21 close to the support plate 12 and the part of the rolling belt 21 around the curling roller 223 and the lifting roller 222, the included angle can further ensure the rolling angle, thereby further improving the consistency of the shape of the formed dough roll. In addition, in the embodiment, the curling roller 223 is detachably installed on the sliding component 221, and the sliding component 221 can replace the curling roller 223 with different radii, so that the included angle of the rolling belt 21 can be adjusted, thereby the tightness of the rolling can be adjusted.

[0040] As shown in FIG6 , the coil forming assembly 22 further includes a lower pressing roller 224 mounted on the sliding member 221 and rotatable relative to the sliding member 221. The lower pressing roller 224 is parallel to the lifting roller 222. After the coiling belt 21 passes over the lifting roller 222, it is pressed down to the support plate 12 by the lower pressing roller 224. The lower pressing roller 224 can limit the direction of the coiling belt 21 and keep the coiling belt 21 in a tensioned state, thereby making the coiling action more refined.

[0041] As shown in Figure 6, the sliding component 221 is provided with an adjustment groove 2214, the wall of the adjustment groove 2214 is provided with a threaded hole, the lifting roller 222 is located in the adjustment groove 2214, and the part of the lifting roller 222 located in the adjustment groove 2214 is provided with a threaded hole, and the rolling forming component 22 also includes an adjustment bolt 225, and the adjustment bolt 225 cooperates with the threaded hole of the adjustment groove 2214 and the threaded hole of the lifting roller 222 respectively and adjusts the upper and lower positions of the lifting roller 222 relative to the curling roller 223 and the position in the sliding direction of the sliding component 221 by adjusting the cooperation position with the threaded hole of the adjustment groove 2214.

[0042] The sliding component 221 includes a horizontal portion 2211, a first inclined portion 2212 and a second inclined portion 2213. In the sliding direction of the sliding component 221, the first inclined portion 2212 extends from the horizontal portion 2211 downstream and upward, and the second inclined portion 2213 extends from the first inclined portion 2212 upstream and upward. The curling roller 223 and the lower pressure roller 224 are both provided on the horizontal portion 2211, and in the sliding direction of the sliding component 221, the curling roller 223 is located downstream of the lower pressure roller 224. The adjustment groove 2214 is provided on the second inclined portion 2213, and the extension direction of the adjustment groove 2214 is consistent with the extension direction of the second inclined portion 2213.

[0043] like Figure 3 As shown, the driving device 3 includes a motor 31 fixed to the bracket 1 and two sets of transmission mechanisms. Each set of transmission mechanisms includes a driving sprocket 32 ​​that rotates under the drive of the motor 31, a chain 34 that cooperates with the driving sprocket 32, and three driven sprockets 33 that cooperate with the chains 34. In this embodiment, the driving sprocket 32 ​​and the driven sprocket 33 are arranged together to form a rectangle, and the chain 34 is a rectangular ring. The two sets of transmission mechanisms are respectively installed on both sides of the bracket 1. The motor 31 synchronously drives the driving sprockets 32 of the two sets of transmission mechanisms. For example, the two driving sprockets 32 can be installed on the same driving shaft. The motor 31 drives the two driving sprockets 32 to rotate synchronously, so that the two chains 34 move synchronously. The two ends of the sliding component 221 are respectively connected to the two chains 34 and move under the drive of the chains 34. As shown Figure 3As shown, the support frame body 11 is further provided with a chain 34 guide rail for guiding the movement of the chain 34, so that the whole rolling forming assembly 22 is reliably and stably moved along the rectangular ring through the sprocket and the chain 34, ensuring the stable rolling. Of course, in other embodiments, each set of transmission mechanism can include a driving sprocket 32 and other number of driven sprockets 33, for example, two driven sprockets 33, at this time the driving sprocket 32 and the driven sprockets 33 are arranged into a triangle, and the chain 34 is also in a triangle. When 4 driven sprockets 33 are used, the driving sprocket 32 and the driven sprockets 33 can be correspondingly arranged into a pentagon, and the chain 34 is also in a pentagon.

[0044] The first positioning assembly 4 and the second positioning assembly 5 each comprise a fixed part 41, 51 fixed to the support frame 11, a lifting part 42, 52 movable up and down relative to the fixed part, a positioning drive device 43, 53 for driving the lifting part 42, 52 to ascend and descend, and a sensor 44, 54 for detecting the rolling forming assembly 22; the rolling machine further comprises a control device (not shown in the figure), the sensor 44 of the first positioning assembly 4 and the sensor 54 of the second positioning assembly are located between the fixed part 41 of the first positioning assembly and the fixed part 51 of the second positioning assembly, and the sensor 44 of the first positioning assembly 4 is located upstream of the sensor 54 of the second positioning assembly; when the control device receives the signal from the sensor 44 of the first positioning assembly 4 that the rolling forming assembly is detected (at this time, the rolling forming assembly just passes through the first positioning assembly 4), the up-and-down drive device 44 of the first positioning assembly 4 is controlled to drive the lifting part 42 of the first positioning assembly 4 to descend to position the rolling belt 21 on the support plate 12, and this state is maintained for a set time, then the up-and-down drive device 44 of the first positioning assembly 4 is controlled to drive the lifting part 42 of the first positioning assembly 4 to ascend, or the up-and-down drive device 44 of the first positioning assembly 4 can be controlled according to the number of revolutions of the motor 31 to drive the lifting part 42 of the first positioning assembly 4 to ascend, at this time, the rolling forming assembly 22 runs to the vicinity upstream of the first positioning assembly 4. When the control device receives the signal from the sensor 54 of the second positioning assembly 5 that the rolling forming assembly 22 is detected (at this time, the rolling forming assembly 22 is about to reach the second positioning assembly 5), the up-and-down drive device 54 of the second positioning assembly 5 is controlled to drive the lifting part 52 of the second positioning assembly 5 to ascend to allow the rolling forming assembly 22 to pass through, and this state is maintained for a set time, then the up-and-down drive device 54 of the second positioning assembly 5 is controlled to drive the lifting part 52 of the second positioning assembly 5 to descend, or the up-and-down drive device 54 of the second positioning assembly 5 can be controlled according to the number of revolutions of the motor 31 to drive the lifting part 52 of the second positioning assembly 5 to descend, at this time, the rolling forming assembly 22 runs to the vicinity upstream of the first positioning assembly 4, and the lifting part 42 of the first positioning assembly 4 is about to ascend. The descent of the lifting part 52 of the second positioning assembly 5 is earlier than the ascent of the lifting part 42 of the first positioning assembly 4, which ensures that the rolling belt 21 is always positioned. The time period or the number of revolutions of the motor is the set condition.

[0045] As Figure 1 And Figure 3As shown, the fixing component 41 includes a vertical fixing plate 411, and the fixing plate 411 is perpendicular to the length direction of the support plate 12. The fixing component 41 also includes two support legs 412 located on both sides of the rolling belt 21. The upper ends of the support legs 412 are connected to the lower end of the fixing plate 411. In this embodiment, the support legs 412 are formed by extending downward from both sides of the fixing plate 411. The two support legs 412 are respectively fixed to the support frame 11, and a space is formed between the lower end of the fixing plate 411 and the rolling belt 21 to allow the rolling forming assembly 22 to pass through. The positioning drive device 43 can drive the lifting component 42 to reciprocate up and down. The lifting component 42 moves upward to make way for the passing space, and the lifting component 42 moves downward to block the passing space and press the rolling belt 21 onto the support plate 12. The positioning drive device 43 can be a cylinder, a hydraulic cylinder or an electric cylinder. In this embodiment, a cylinder is selected, and its piston rod is facing downward. The lifting component 42 is a positioning plate fixed to the lower end of the piston rod. When the rolling forming component 22 approaches, the positioning plate rises under the drive of the cylinder, allowing the rolling forming component 22 to pass through. After the rolling forming component 22 leaves, the positioning plate descends under the drive of the cylinder to press the rolling belt 21 onto the support plate 12.

[0046] like Figure 3 As shown, the rolling belt 21 is provided with ventilation holes 211, and the dough sheet rolling machine further includes a negative pressure device 6, which includes a negative pressure pump 61 and a negative pressure box body 62 installed in the support plate 12. The negative pressure pump 61 is connected to the internal cavity of the negative pressure box body 62 through a pipe 63. The upper wall of the negative pressure box body 62 is provided with a plurality of adsorption holes, and the plurality of adsorption holes are opposite to the dough sheet 7 to be rolled on the rolling belt 21. The negative pressure pump 61 creates a negative pressure in the negative pressure box body 62, which forms an adsorption on the dough sheet 7 to be rolled on the rolling belt 21, preventing the dough sheet 7 from sliding relative to the rolling belt 21 under the push of the rolling belt 21 during rolling, thereby completing the rolling at the set position, making the rolling action more precise, and improving the rolling yield rate. In this embodiment, different covers are provided as the upper wall of the negative pressure box body 62. The shapes and areas of the adsorption holes in the different covers are different, thereby improving the adaptability to dough sheets of different shapes and sizes, thereby more firmly adsorbing the dough sheets and further improving the rolling yield rate. After the rolling is completed, the rolled dough sheet 7 is located at the end of the adsorption area and is no longer adsorbed. Instead, it is pushed by the rolling belt 21 to roll to the set position and enter the next process.

[0047] In another embodiment, the face sheet rolling machine comprises a plurality of rolling devices 2 and a positioning device corresponding to each of the rolling devices 2, and the rolling belts 21 of all the rolling devices 2 are parallel. The driving device 3 can synchronously drive the rolling forming assemblies 22 of the plurality of rolling devices 2 to move along the support plate 12, and of course, the driving device 3 can also be arranged for each rolling device 2, and each rolling device 2 can be driven separately.

[0048] The above embodiments are only exemplary embodiments of the present application and are not used to limit the present application, and the protection scope of the present application is defined by the claims. Various modifications or equivalent replacements made by those skilled in the art to the present application within the spirit and protection scope of the present application also fall within the protection scope of the present application.

Claims

1. A dough sheet rolling machine, characterized in that: include: The bracket comprises a support frame and a support plate fixed to the support frame; The rolling device comprises a rolling belt supported by a bracket and forming a closed loop, and a rolling forming assembly cooperating with the rolling belt, wherein a horizontal section of the rolling belt is used to carry the dough sheet, and the rolling forming assembly comprises a sliding component that can slide along the support plate and a picking roller installed on the sliding component, the picking roller is horizontal and its axial direction is perpendicular to the sliding direction of the sliding component, the picking roller can rotate relative to the sliding component, the picking roller picks up a part of the rolling belt from the support plate, and when the picking roller passes the rolling belt where the dough sheet is located, the part of the rolling belt is picked up, and the picked-up rolling belt rolls up the dough sheet; A driving device, capable of driving the roll forming assembly to move along the support plate; The positioning device includes a first positioning component and a second positioning component. The first positioning component is located upstream of the dough sheet to be rolled, and the second positioning component is located downstream of the dough sheet to be rolled. When the rolling and forming component passes through the first positioning component, the second positioning component positions the rolling belt on the support plate. When the rolling and forming component passes through the second positioning component, the first positioning component positions the rolling belt on the support plate.

2. The dough sheet rolling machine according to claim 1, characterized in that: The rolling and forming assembly also includes a curling roller installed on the sliding part and rotatable relative to the sliding part. The curling roller is parallel to the picking roller. In the up and down directions, the curling roller is closer to the support plate, and in the sliding direction of the sliding part, the curling roller is located upstream of the picking roller. The rolling belt passes from the downstream to the upstream from under the curling roller, extends downstream and upward until it passes over the picking roller from above and then returns downward to the support plate.

3. The dough sheet rolling machine according to claim 2, characterized in that: The curling roller is detachably mounted on the sliding component, and the sliding component can replace curling rollers with different radii.

4. The dough sheet rolling machine according to claim 2, characterized in that: The rolling and forming assembly also includes a lower pressure roller installed on the sliding component and rotatable relative to the sliding component. The lower pressure roller is parallel to the picking roller. The rolling belt passes over the picking roller and is pressed down to the support plate by the lower pressure roller.

5. The dough sheet rolling machine according to claim 4, characterized in that: The sliding component is provided with an adjustment groove, the wall of the adjustment groove is provided with a threaded hole, the picking roller is located in the adjustment groove, the part located in the adjustment groove is provided with a threaded hole, and the roll forming assembly also includes an adjustment bolt, which respectively cooperates with the threaded hole of the adjustment groove and the threaded hole of the picking roller and adjusts the upper and lower positions of the picking roller relative to the curling roller and the position in the sliding direction of the sliding component by adjusting the cooperation position with the threaded hole of the adjustment groove.

6. The dough sheet rolling machine according to claim 5, characterized in that: The sliding component includes a horizontal portion, a first inclined portion and a second inclined portion. In the sliding direction of the sliding component, the first inclined portion extends from the horizontal portion downstream and upward, and the second inclined portion extends from the first inclined portion upstream and upward. The curling roller and the lower pressure roller are both provided on the horizontal portion, and in the sliding direction of the sliding component, the curling roller is located downstream of the lower pressure roller, and the adjustment groove is provided on the second inclined portion.

7. The dough sheet rolling machine according to claim 2, characterized in that: The driving device includes a motor fixed to the bracket and two sets of transmission mechanisms, each set of transmission mechanisms includes a driving sprocket rotating under the drive of the motor, a chain cooperating with the driving sprocket and multiple driven sprockets cooperating with the chain, the two sets of transmission mechanisms are respectively installed on both sides of the bracket, the motor drives the driving sprockets of the two sets of transmission mechanisms to rotate synchronously, the two ends of the sliding component are fixed to the chains on both sides one by one, and move under the drive of the chain.

8. The dough sheet rolling machine according to claim 2, characterized in that: The first positioning assembly and the second positioning assembly each include a fixed component fixed to the support frame, a lifting component movable up and down relative to the fixing device, a positioning drive device for driving the lifting component to rise and fall, and a sensor for detecting the rolling and forming assembly; the noodle rolling machine also includes a control device, wherein the sensor of the first positioning assembly and the sensor of the second positioning assembly are both located between the fixed component of the first positioning assembly and the fixed component of the second positioning assembly, and the sensor of the first positioning assembly is located upstream of the sensor of the second positioning assembly; when the control device receives a signal from the sensor of the first positioning assembly indicating that the rolling and forming assembly has been detected, the control device controls the up and down driving device of the first positioning assembly to drive the lifting component of the first positioning assembly to descend to position the rolling belt on the support plate, and maintains this state until a set condition, and then controls the up and down driving device of the first positioning assembly to drive the lifting component of the first positioning assembly to rise; when the control device receives a signal from the sensor of the second positioning assembly indicating that the rolling and forming assembly has been detected, the control device controls the up and down driving device of the second positioning assembly to drive the lifting component of the second positioning assembly to ascend to allow the rolling and forming assembly to pass, and maintains this state until a set condition, and then controls the up and down driving device of the second positioning assembly to drive the lifting component of the first positioning assembly to descend.

9. The dough sheet rolling machine according to claim 8, characterized in that: The fixing component includes a fixing plate and two supporting legs connected to the lower end of the fixing plate, the two supporting legs are respectively located on both sides of the rolling belt and are respectively fixed to the support frame, and a passing space allowing the rolling forming assembly to pass through is formed between the lower end of the fixing plate and the rolling belt. Under the drive of the positioning drive device, the lifting component moves upward to make way for the passing space, and the lifting component moves downward to block the passing space and press the rolling belt onto the support plate.

10. The dough sheet rolling machine according to claim 1, characterized in that: The rolling belt is provided with ventilation holes, and the dough sheet rolling machine also includes a negative pressure device, which includes a negative pressure pump and a negative pressure box body installed in the support plate. The negative pressure pump is connected to the internal cavity of the negative pressure box body through a pipeline, and the upper wall of the negative pressure box body is provided with multiple adsorption holes for adsorbing the dough sheet to be rolled on the rolling belt.

11. The dough sheet rolling machine according to any one of claims 1 to 10, characterized in that: The dough sheet rolling machine includes a plurality of rolling devices and positioning devices corresponding to the plurality of rolling devices, and the rolling belts of all the rolling devices are parallel.

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