Automatic cake rolling machine

Abstract

The invention belongs to the technical field of food processing machinery, and relates to an automatic cake rolling machine. Aiming at the problems of low manual making efficiency and non-uniform finished product quality of the existing rolled cakes and the problems of narrow application range, non-uniform stuffing rolling and the like of the existing cake pressing machine and the existing cake rolling machine, the invention provides the automatic cake rolling machine capable of dynamically adjusting the roll surface angle of the dough pressing roller. A machine body is composed of a supporting column, a fixed plate and a movable plate, a spring below a pancake placing plate can buffer and ensure that a pancake makes contact with a pancake rolling mechanism, and a linear driving device controls the pancake rolling mechanism on the movable plate to ascend and descend. The cake rolling mechanism comprises a main shaft which is vertically arranged and of which the top end is connected with a driving device, a rotary transmission part selected according to a driving type, a dough pressing roller of which the angle is changed through hinging and sliding connection, and an angle adjusting device for adjusting the angle of the dough pressing roller by driving a sliding rod. The automatic cake rolling machine is small in occupied space, the angle of the dough pressing roller can be dynamically adjusted so that composite rolling of cakes can be more uniform, the elastic buffering mechanism prevents the cakes from being damaged, and the single-roller and multi-roller structure can meet the requirements of different production scenes.

Description

Technical Field

[0001] The invention relates to the technical field of food processing machinery, in particular to an automatic pancake rolling machine capable of dynamically adjusting a rolling angle. Background Art

[0002] The whole process of making pancakes is basically done manually, which is time-consuming, inefficient, and slow for beginners to get started. The pancake-rolling step is related to the shape and thickness of the finished pancake. Manual thinning and rounding operations can easily cause the pancakes to be of different thicknesses and irregular shapes, affecting the appearance and taste.

[0003] Some existing pancake pressing machines generally connect an iron plate under the cylinder to press the pancakes. This structure can only process unfilled pancakes. Some pancake rolling machines have a horizontally fixed pressing roller, so the fillings are not rolled evenly when rolling the pancakes.

[0004] Purpose of the invention: To provide an automatic dough rolling machine which can dynamically adjust the angle of the dough pressing roller, contact the dough from the center, adjust the angle while rotating and pressing, and evenly extend it to all sides. Technical Solution

[0005] Machine structure: The machine body is mainly composed of support columns, fixed plates and movable plates. The upper movable plate is used to install the pancake rolling mechanism, and the lower movable plate is used as the pancake placing plate. The spring set under the pancake placing plate provides buffering with the preload force, and at the same time pushes the lower movable plate upward. It not only plays a buffering role, but also ensures that the pancake is in continuous contact with the rotating pancake rolling mechanism. The linear drive device is fixed to the top plate to drive the upper movable plate and the pancake rolling mechanism to rise and fall.

[0006] Pancake rolling mechanism: The main shaft is arranged vertically, and the upper end is connected to a driving device to drive the main shaft to rotate. An axial hole is provided at the top of the main shaft and communicates with the radial hole of the shaft body. When the main shaft rotates, a power transmission channel is provided for the angle adjustment device. A rotating transmission component is provided above the axial hole at the top of the main shaft.

[0007] Rotation transmission components: According to the drive type of angle adjustment, select a conductive slip ring or a rotary joint above the spindle to provide electrical signals or fluid transmission for the angle adjustment drive during spindle rotation.

[0008] Dough pressing roller: A single roller or multiple rollers can be adapted according to the situation. The first end of the dough pressing roller is hinged to the lower end of the main shaft through a pin, screw nut or hinge, and the second end of the dough pressing roller is slidably connected to the main shaft extension bracket through a strip guide hole, guide rod or arc track, so that the second end of the dough pressing roller can make partial circular motion around the hinge point along the guide structure to change the contact angle between the dough pressing roller and the cake surface.

[0009] Angle adjustment device: A sliding rod that can slide along the axis of the main shaft, and its lower end is movably connected to the second end of the pressing roller through a force transmission rod; the angle adjustment drive is fixed on the main shaft, and the output end is connected to the sliding rod, which drives the sliding rod to move, and its force is transmitted to the second end of the pressing roller through the force transmission rod, thereby adjusting the angle of the pressing roller.

[0010] The beneficial effects of the present invention include: The longitudinal structural design of multi-layer boards and support rods allows the whole machine to occupy a small space, making it especially suitable for small workshops, small stores and other space-constrained scenes. The rolling angle can be adjusted dynamically during the rotation of the dough roller, so as to achieve contact and compound rolling from the center of the dough and evenly extend it around, effectively solving the problems of uneven filling distribution and inconsistent thickness. The elastic buffer mechanism under the dough plate can adaptively adjust the rolling pressure to prevent the dough from being damaged due to excessive pressure, thus improving the yield rate. The single-roller structure is suitable for the low-speed hand-rolling needs of stores and small workshops, and the multi-roller parallel structure can adapt to the efficient processing scenarios of factory production lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is the overall structure diagram of the automatic pancake rolling machine of Example 1.

[0012] Figure 2 This is the structural diagram of the pancake rolling mechanism of Example 1.

[0013] Figure 3 This is the structural diagram of the pancake rolling mechanism of Example 2.

[0014] Figure 4 This is the structural diagram of the pancake rolling mechanism of Example 3.

[0015] Embodiment 1, Figure 1 , Figure 2 Middle, 1 main shaft, 1a hinge hole, 1b guide groove, 1c radial hole, 1d axial hole, 2 pressing roller, 2b small cone end, 2a large cone end, 3 pin shaft, 4 extension bracket, 4a guide rod, 4b return spring, 4c nut, 5 sliding rod, 5a linear bearing, 5b force transmission rod, 6 telescopic motor, 7 bevel gear, 8 rotating motor, 9 bearing seat, 10 conductive slip ring, 11 elliptical arc surface sheet, 12 support rod, 13 top plate, 14 movable plate, 15 cake plate, 16 bottom plate, 17 buffer spring, 18 push rod motor, 19 rack, 20 rack bracket.

[0016] Example 2 Figure 3 Some numbers of the rolling mechanism in the middle have changed: 1 main shaft, 1a hinge hole, 1b eccentric shaft, 2 pressing roller, 2a cylindrical guide end, 2b U-shaped connecting end, 2c roller surface, 3 screws and nuts, 4 extension bracket, 4a guide rod, 4c arc guide rail, 5 sliding rod, 5a bushing, 5b force transmission rod, 6 telescopic motor.

[0017] Embodiment 3, Figure 4 The numbers of some parts of the rolling mechanism have changed: 1 main shaft, 1b eccentric shaft, 2 pressing roller, 2a cylindrical guide end, 2b hinge mother, 3 hinge male, 4 extension bracket, 4a guide rod, 4c long strip hole, 5 sliding rod, 5a linear bearing, 5b force transmission rod, 6 telescopic motor.

[0018] In order to make the purpose, technical solution and advantages of the present invention clearer and more specific, the present invention is further described in detail below with reference to the accompanying drawings and examples of implementation. It should be understood that the description of the specific embodiments is only used to explain the present invention and is not intended to limit the scope of the present invention.

[0019] Example 1: Figure 1 , Figure 2 As shown, the automatic pancake rolling machine comprises: a main shaft (1) arranged vertically, and a bevel gear is mounted on the top of the main shaft, and the bevel gear meshes with the bevel gear (7) at the output end of the rotating motor (8) at 90 degrees to achieve power transmission. The rotating motor (8) and the main shaft (1) are fixed on a bearing seat (9). The top of the main shaft (1) is drilled with a hole (1d) along the axial direction, and the shaft body is drilled with a hole (1c) along the radial direction, and the two holes are interconnected to form a special power supply channel. The bottom end of the main shaft (1) is radially drilled with a hinge hole (1a), and a guide groove (1b) is opened in the axial direction, and the hinge hole (1a) and the guide groove (1b) are in a cross shape.

[0020] The dough pressing roller (2) is designed to be conical, with a through hole drilled on the shaft of the first small conical end (2b), and a through strip guide hole drilled on the shaft of the second large conical end (2a). The through holes of the two dough pressing rollers (2) are aligned and embedded in the guide groove (1b) of the main shaft (1), and then a pin (3) is used to pass through the hinge holes (1a) on the two side walls of the guide groove (1b) and the through holes of the small conical ends of the two dough pressing rollers, so that the large conical ends (2a) of the two dough pressing rollers (2) can swing freely around the pin (3).

[0021] Angle adjustment device: The bottom end of the guide rod (4a) is threaded and is firmly fixed to the main shaft (1) through the main shaft (1) extension bracket (4). The guide rod (4a) passes through the strip guide hole at the large conical end of the pressing roller (2) and is fixed by a return spring (4b) and a nut (4c). The sliding rod (5) is sleeved on the main shaft 1 and the guide rod (4a) through a linear bearing (5a) and can slide smoothly up and down along the main shaft (1). The sliding rod (5) is sleeved on the lower end of the guide rod (4a) and a circular tubular force transmission rod (5b) is coaxially installed. Its function is to transmit the downward force of the sliding rod (5) to the large conical end (2a) of the pressing roller (2). The telescopic motor (6) is fixed on the main shaft (1) extension bracket (4), and its driving end is connected to the sliding rod (5). When the telescopic motor (6) is extended, the downward pressure is sequentially transmitted through the sliding rod (5) to the force transmission rod (5b), and finally acts on the strip guide hole at the large conical end (2a) of the dough pressing roller (2), causing the roller surfaces at the lower ends of the two dough pressing rollers (2) to change from a V-shape to a parallel shape; when the telescopic motor (6) is retracted, the return spring (4b) relies on the elastic force to restore the roller surface (2) of the dough pressing roller to a V-shape.

[0022] Elimination of blind spots: An elliptical curved sheet (11) is fixedly mounted at the bottom end of the main shaft (1), and the elliptical major axis direction of the sheet is perpendicular to the central axis of the two dough pressing rollers (2). The elliptical curved sheet (11) rotates along with the main shaft (1), thereby eliminating the blind spots not covered by the dough pressing roller surfaces (2) under the rotation axis of the main shaft (1).

[0023] Machine body assembly: The machine body is composed of a top plate (13), a movable plate (14), a cake placing plate (15) and a bottom plate (16). Four double-threaded support rods (12) vertically connect the four layers of plates, wherein the top plate (13) is fixedly connected to the bottom plate (16). The movable plate (14) can slide along the support rods (12), and a linear bearing can be installed at the sliding part to reduce friction resistance. The center of the top plate (13) and the movable plate (14) are both provided with a hole, and the push rod motor (18) is fixed on the top plate (13), and the rack (19) at its output end passes through the hole of the top plate (13) and is fixedly connected to the rack bracket (20) above the movable plate (14). The lower end of the movable plate (14) fixes the pancake rolling mechanism through a bearing seat (9), and a conductive slip ring (10) is installed in the central through hole of the movable plate (14). The stator end wire of the conductive slip ring (10) passes through the hollow part of the rack bracket (20) to connect to the external power supply, and the rotor end wire passes through the axial hole (1d) at the top of the main shaft (1) and passes out from the radial hole (1c) of the shaft body to connect to the telescopic motor (6), thereby realizing power supply in a rotating state. A buffer spring (17) is coaxially sleeved on the support rod (12) between the pancake placing plate (15) and the bottom plate (16), which is used to buffer the pressure when the pancake rolling mechanism is pressed down, and the spacing can be adjusted.

[0024] Working principle: 1. Preparation: Place the dough on the dough board (15) to prepare for rolling. 2. Start-up phase: The rotating motor (8) is turned on, and the main shaft (1) drives the rolling mechanism to start rotating; at the same time, the push rod motor (18) descends and the telescopic motor (6) extends and starts synchronously. 3. Contact and initial rolling: When the rotating rolling mechanism contacts the thick dough, the buffer spring (17) is compressed, and the push rod motor (18) stops descending, so that the rolling mechanism is fixed in position. 4. Dough pressing roller (2) adjustment and rolling process: The telescopic motor (6) operates to adjust the dough pressing roller (2) from a V-shape to a parallel shape. The dough is rolled out from the center to the periphery under the action of the rotating dough pressing roller (2). 5. Continuous rolling and pressing: As the dough is rolled thin, the buffer spring (17) rebounds, the pancake placing plate (15) rises, and the pancake rolling mechanism continues to roll and press the pancake. 6. Completion and reset: After the dough is rolled and pressed into shape, the equipment stops and resets, the rotary motor (8) stops, the push rod motor 18 rises, the telescopic motor (6) contracts, and the dough pressing roller (2) returns to the V shape under the action of the reset spring (4b).

[0025] Example 2 (reference Figure 3 ) is different from Example 1 in that: Adjustment of the rotary drive device: the motor shaft is installed parallel to the main shaft (1), and the bevel gear set is replaced by a pulley set; Adjustment of the dough pressing roller (2): A single cylindrical roller (2) is used. An eccentric shaft (1b) is provided at the bottom end of the main shaft (1), and a through hinge hole (1a) is drilled radially thereon. The first end of the dough pressing roller (2) is a U-shaped connecting end (2b), which covers the hinge hole (1a) of the eccentric shaft (1b) and is hinged by a screw nut (3). The screw nut (3) can clamp the U-shaped connecting end (2b) of the dough pressing roller (2) so that it can swing around the screw (3) but cannot shake left and right. The second end of the dough pressing roller (2) is a cylindrical guide end (2a); Angle adjustment device adjustment: A guide rod (4a) with a partially curved guide rail (4c) at the lower end is fixed to the extension bracket (4) of the main shaft (1) to adapt to the swing arc of the second end of the noodle pressing roller (2) around the hinge point. A sliding rod (5) sleeved on the main shaft (1) with a shaft sleeve (5a) is also sleeved on the vertical guide rod (4a). The force transmission rod (5b) below the sliding rod (5) is flat and long, and has a hole at the lower end. After the cylindrical guide end (2a) of the second end of the noodle pressing roller (2) passes through the hole of the force transmission rod (5b), it is embedded in the curved guide rail (4c). The up and down movement of the force transmission rod (5b) can drive the noodle pressing roller (2) to change its angle. This structure eliminates the need for the return spring (4b) and the nut (4c) of Example 1, and the roller surface (2c) of the pressing roller (2) covers the rotation axis center surface of the main shaft (1), so there is no rolling blind area, and the elliptical arc-shaped thin sheet (11) can be omitted.

[0026] Working principle: Its working principle is basically the same as that of Example 1.

[0027] Example 3 (reference Figure 4 ) is different from Example 2 in that: The number of dough rollers (2) has been upgraded from a single roller to three cylindrical rollers; Adjustment of the hinge structure: the lower end of the eccentric shaft (1b) is changed into a regular triangular prism, and a hinge male (3) is welded to each of the three faces of the triangular prism; a hinge female (2b) is welded to the first end of each pressing roller (2) and is matched with the hinge male (3) on the triangular prism for hinge connection; Adjustment of the guide structure: The arc guide rail (4c) of the original embodiment 2 is changed to a long strip hole (4c). When the sliding rod (5) is sleeved on the main shaft (1), a linear bearing (5a) is installed to reduce friction. At the same time, it is sleeved on the three guide rods (4a) to ensure the synchronization of the three rollers. A round hole is opened at the lower end of the flat strip of the force transmission rod (5b). The cylindrical guide end (2a) passes through the hole and the long strip hole (4c) of the guide rod (4a). The telescopic motor (6) is fixed on the extension bracket (4) in the opposite direction of the eccentric shaft, and the output end is directly connected to the sliding rod (5).

[0028] Working principle: Its working principle is basically the same as that of Example 1.

[0029] Embodiment 4 is basically the same as Embodiment 1, except that: in an environment with sufficient gas, the whole machine can be driven by gas: Use a telescopic cylinder instead of a push rod motor (18) to control the lifting of the rolling mechanism; The speed-controlled pneumatic motor is used instead of the rotary motor (8) to drive the spindle to rotate; Use a single-acting cylinder instead of the telescopic motor (6) to drive the angle adjustment; The rotary joint replaces the conductive slip ring (10), the axial hole (1d) at the upper end of the main shaft (1) is tapped, and a threaded pneumatic rotary joint is installed to replace the conductive slip ring (10); the radial hole (1c) of the shaft body is tapped to install a threaded direct joint, and at this time, the power transmission channel (1d, 1c) of the main shaft (1) acts as an air pipe, the rotary joint is connected to an external air source, and the direct joint is connected to a single-acting cylinder. The above drive replacement scheme is not difficult for ordinary technicians in this field, and the details are not repeated in detail.

[0030] Working principle: Its working principle is basically the same as that of Example 1.

[0031] Embodiment 5 is basically the same as Embodiment 2, except that the lifting mechanism and the elastic component are eliminated, and the lever principle is used to press down the pancake rolling mechanism or raise the pancake plate, and the distance between the pancake and the pancake rolling mechanism is manually adjusted.

[0032] All the above embodiments are only examples. The key to the present invention is that during the rotation process, the roller surface generatrix of the dough-pressing roller of the dough-rolling mechanism is inclined at a non-vertical angle to the axis of the rotating main shaft, contacting the center of the dough, and during the rolling process, the angle adjustment device adjusts the roller surface generatrix of the dough-pressing roller to be parallel, and the dough is evenly extended to all sides. Based on the above core features, the implementation schemes obtained by those skilled in the art through equivalent replacement or conventional parameter adjustment all fall within the scope of protection of this patent.

Claims

1. An automatic pancake rolling machine, comprising a machine body, a spacing adjustment component and a pancake rolling mechanism, characterized in that: The dough rolling mechanism comprises a rotation driving device, a main shaft (1), a dough pressing roller (2), and an angle adjustment device, wherein the rotation driving device is connected to the upper end of the main shaft (1) and is used to drive the main shaft (1) to rotate; The first end of the dough pressing roller (2) is hinged to the lower end of the main shaft (1), so that the dough pressing roller (2) can swing around the hinge point to adjust the angle between the roller surface generatrix at the end of the dough pressing roller (2) in contact with the dough and the rotation axis of the main shaft (1); The second end of the dough pressing roller (2) is connected to the main shaft (1) extension bracket (4) by a guide slide, so that the second end of the dough pressing roller (2) performs a partial circular motion around the hinge point along the guide, thereby adjusting the roller surface angle of the dough pressing roller (2); The angle adjustment device is fixedly mounted on the main shaft (1), rotates synchronously with the main shaft (1), and can adjust the angle of the dough pressing roller (2) during the rotation process.

2. The automatic pancake rolling machine according to claim 1, characterized in that: The top end of the main shaft (1) is provided with an axial hole (1d), and the shaft body is provided with a radial hole (1c), the two holes are connected, and when the main shaft (1) rotates, a power transmission channel is provided for the angle adjustment device, and a rotation transmission component is provided above the axial hole (1d) at the top end of the main shaft (1).

3. According to the automatic pancake rolling machine of claim 2, the rotating transmission component comprises a conductive slip ring (10) above the axial hole (1d) at the top end of the main shaft (1), which is used to transmit electrical signals to the angle adjustment device through the power transmission channel (1d, 1c) when the main shaft (1) rotates.

4. The automatic pancake rolling machine according to claim 2, wherein the rotating transmission component comprises a rotating joint above the axial hole (1d) at the top end of the main shaft (1), which is used to transmit fluid to the angle adjustment device through the power transmission channel (1d, 1c) when the main shaft (1) rotates.

5. The automatic pancake rolling machine according to claim 2, wherein the main shaft (1) is arranged vertically, and a hinge hole (1a) is provided at its lower end for hingedly connecting the dough pressing roller (2).

6. According to the automatic pancake rolling machine of claim 5, a guide groove (1b) is provided at the bottom end of the main shaft (1), the guide groove and the hinge hole (1a) are in a cross shape, and the first end of the dough pressing roller (2) is embedded in the guide groove (1b).

7. The automatic pancake rolling machine according to claim 5, wherein the hinge hole (1a) at the lower end of the main shaft (1) is an eccentric portion, and the eccentric design enables the roller surface of the dough pressing roller (2) to cover the rotation axis of the main shaft (1), thereby solving the rolling blind area.

8. The automatic pancake rolling machine according to claim 5, wherein the angle adjustment device comprises: The sliding rod (5) is mounted on the outside of the main shaft (1) in a sliding fit manner and can slide along the axial direction of the main shaft. A force transmission rod (5b) is provided at the lower end of the sliding rod, and the force transmission rod (5b) is movably connected to the second end of the dough pressing roller (2); The angle adjustment drive is fixed to the main shaft (1), and its output end is connected to the sliding rod (5), which can drive the sliding rod (5) to move axially. The generated force is converted into a change in the swing angle of the pressing roller (2) through the force transmission rod (5b).

9. The automatic pancake rolling machine according to claim 8, wherein the machine body comprises a fixed plate, a movable plate (14), and a pancake placing plate (15) arranged in parallel from top to bottom, and the plates are connected by a vertical support rod (12); the movable plate (14) and the pancake placing plate (15) can slide along the support rod (12), and the pancake rolling mechanism is fixed to the movable plate (14).

10. According to the automatic pancake rolling machine of claim 9, the spacing adjustment component includes a lifting mechanism and an elastic buffer mechanism, the elastic buffer mechanism includes a buffer spring (17) arranged at the lower end of the pancake placing plate (15); the lifting mechanism includes a linear drive device, which is fixed to the upper end of the machine body, and the driving end is connected to the movable plate (14), which is used to drive the movable plate (14) to vertically lift and lower, and synchronously compress or release the spring (17), so as to realize dynamic adjustment of the spacing between the pancake rolling mechanism and the pancake placing plate (15).

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