Belt conveyor line and dough sheeting machine

Abstract

This application relates to a belt conveyor line and a dough thinning machine, belonging to the field of tart crust manufacturing. The belt conveyor line includes a conveyor frame, a conveyor belt mounted on the conveyor frame, and a power unit. The power unit drives the conveyor belt to rotate. A scraper is installed on the conveyor frame, contacting the inner and outer surfaces of the conveyor belt. The scraper is designed to remove debris adhering to the conveyor belt as it rotates. This application uses a thinning drive device to thin the dough and propel it forward. Instead of using a traditional large flattening roller, the thinning drive device uses multiple small flattening rollers (i.e., fine pressure rollers) arranged circumferentially. Each small flattening roller can also rotate. This design achieves both dough thinning and reliable dough propulsion, effectively solving the problem of slippage and dough stagnation associated with traditional large flattening rollers.

Description

Technical Field

[0001] This application relates to the field of tart crust manufacturing, and in particular to a belt conveyor line and a dough pressing machine. Background Technology

[0002] Patent CN216627292U discloses a tart crust production system. It uses a series of mechanical devices, such as a dough flattener, a dough transition machine, a dough conveyor, a dough pre-presser, and a first dough thinning machine, to transform dough from a lump into a sheet and then into crust, with the thickness gradually decreasing. The entire production process is automated, with high production efficiency and low production cost, making it the mainstream technology for current tart crust production.

[0003] However, during actual production using the above-mentioned tart crust production system, the inventors discovered that the thicker dough often slipped on the smooth outer circumference of the flattening roller of the dough flattening machine, causing the flattening roller of the dough flattening machine to idle and unable to drive the dough forward, thus affecting automated production.

[0004] In addition, during the production process, hardened dough residue left over from previous production processes that adheres to the conveyor belt can mix into the fresh dough, affecting food safety. Utility Model Content

[0005] In order to ensure the smooth progress of the dough to complete the dough pressing and to prevent dough residue from being mixed into the fresh dough, this application provides a belt conveyor line and a dough pressing machine.

[0006] In one aspect of this disclosure, a belt conveyor line is provided, including a conveyor frame and a conveyor belt disposed on the conveyor frame, and a power device for driving the conveyor belt to rotate. The conveyor frame is provided with a scraper that contacts the inner and outer sides of the conveyor belt. The scraper is configured to scrape off debris adhering to the conveyor belt when the conveyor belt rotates.

[0007] By adopting the above technical solution, scrapers are used to remove debris adhering to the conveyor belt while it rotates, ensuring that the conveyor belt is clean and tidy, preventing dough residue from mixing into fresh dough, and ensuring food safety.

[0008] Preferably, there are two scrapers, which contact the inner and outer sides of the conveyor belt, respectively.

[0009] By adopting the above technical solution, the two scrapers scrape away debris from the inner and outer surfaces of the conveyor belt, respectively.

[0010] Preferably, the conveyor frame is provided with a powder collection trough, which is located below the scraper and is used to collect the debris scraped off by the scraper.

[0011] By adopting the above technical solution, the scraped debris can be prevented from falling everywhere and contaminating equipment, machinery, and the ground.

[0012] Preferably, the conveyor frame is provided with a powder collection box, which is located below the scraper and is used to collect the debris scraped off by the scraper.

[0013] By adopting the above technical solution, the scraped debris can be prevented from falling everywhere and contaminating equipment, machinery, and the ground.

[0014] Preferably, a coarse pressure roller is provided above the conveyor belt in a height-removable manner.

[0015] By adopting the above technical solution, the purpose of setting the coarse pressure roller is to pre-press the dough in advance to avoid the dough being too thick and affecting the subsequent thinning drive device to thin the dough. The purpose of designing the coarse pressure roller with adjustable height is to facilitate flexible adjustment of the height of the coarse pressure roller according to the different thickness requirements of the dough.

[0016] Preferably, the coarse pressure roller is rotatably mounted on the column and can move up and down along the column, which is vertically fixed on the conveyor frame.

[0017] By adopting the above technical solution, it is easy to adjust the height of the coarse pressure roller.

[0018] In another aspect of this disclosure, a dough thinning machine is proposed, comprising a belt conveyor and a cutting conveyor of any of the foregoing, wherein the discharge end of the belt conveyor is close to the cutting conveyor and is provided with a thinning drive device 1, the thinning drive device 1 being configured to drive the dough at the discharge end of the belt conveyor forward and thin the dough to form a sheet before placing it on the cutting conveyor.

[0019] By adopting the above technical solution, the thinning drive device achieves both thinning of the dough and driving it forward. Instead of using a traditional large flattening roller, the thinning drive device has multiple small flattening rollers (i.e., fine pressure rollers) arranged in a circle. Each small flattening roller can also rotate on its own. This design can both thin the dough and ensure reliable propulsion of the dough forward, effectively solving the problem of the traditional large flattening roller slipping and causing the dough to be unable to move forward.

[0020] Preferably, the thinning drive device includes: Mounting frame one, on which a turntable is rotatably mounted, and multiple fine pressure rollers distributed around the center of rotation of the turntable are rotatably mounted on the turntable; Rotating device one is connected to the turntable drive to drive the turntable to rotate; The large pressure roller is rotatably mounted on the mounting frame and spaced apart from the fine pressure roller, and close to the discharge end of the belt conveyor. The large pressure roller and the turntable rotate to drive the dough at the discharge end of the belt conveyor into the space between the large pressure roller and a fine pressure roller, and press the dough thin to form a sheet. The sheet that leaves the space between the large pressure roller and the fine pressure roller falls onto the cutting conveyor. The second rotating device is connected to the large pressure roller drive to drive the large pressure roller to rotate.

[0021] By adopting the above technical solution, the thinning drive device achieves both thinning of the dough and driving it forward. Instead of using a traditional large flattening roller, the thinning drive device has multiple small flattening rollers (i.e., fine pressure rollers) arranged in a circle. Each small flattening roller can also rotate on its own. This design can both thin the dough and ensure reliable propulsion of the dough forward, effectively solving the problem of the traditional large flattening roller slipping and causing the dough to be unable to move forward.

[0022] Preferably, the mounting frame is equipped with a translation device, and the turntable is rotatably connected to the translation device. The translation device is configured to drive the turntable to translate and adjust the distance between the fine pressure roller and the large pressure roller.

[0023] By adopting the above technical solution and using a translation device to adjust the distance between the fine and large pressure rollers, dough sheets of different thicknesses can be obtained.

[0024] Preferably, a pulley is coaxially fixed at the end of each fine roller, and the pulleys at the ends of multiple fine rollers near the large roller are fitted with the same transmission belt. The mounting frame is provided with a guide wheel fitted by the transmission belt. The transmission belt is configured to rotate under the drive of the fine rollers in contact with the dough, and drive at least one fine roller that is not in contact with the dough to rotate.

[0025] By adopting the above technical solution, the setting of the transmission belt can reduce the rotation speed of the fine pressure roller, and prevent the fine pressure roller from rotating too fast and tearing the dough.

[0026] In summary, this application includes at least one of the following beneficial technical effects: This application achieves the thinning and forward propulsion of dough through a thinning drive device. Instead of using a traditional large flattening roller, the thinning drive device has multiple small flattening rollers (i.e., fine pressure rollers) arranged in a circle. Each small flattening roller can also rotate on its own. This design can both achieve the thinning of dough and ensure reliable propulsion of the dough, effectively solving the problem of the traditional large flattening roller slipping and causing the dough to be unable to move forward.

[0027] In addition, scrapers are used to remove debris adhering to the conveyor belt while it rotates, ensuring the conveyor belt is clean and tidy, preventing dough residue from mixing into the fresh dough, and ensuring food safety. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the tart crust production line of this application.

[0029] Figure 2 yes Figure 1 A schematic diagram after removing the return material conveyor line.

[0030] Figure 3 This is a schematic diagram of the installation of the scraper in this application.

[0031] Figure 4 This is a schematic diagram of the thinning drive device of this application.

[0032] Figure 5 This is a schematic diagram of the segmented conveyor line of this application.

[0033] Figure 6 This is a schematic diagram of the installation of the carriage in this application.

[0034] Figure 7 This is a schematic diagram of the thinning and leveling device of this application. Figure 1 .

[0035] Figure 8 This is a schematic diagram of the thinning and leveling device of this application. Figure 2 .

[0036] Figure 9 This is a schematic diagram of the cutting device of this application. Figure 1 .

[0037] Figure 10 This is a schematic diagram of the cutting device of this application. Figure 2 .

[0038] Figure 11 This is a schematic diagram of the cutting blade of this application.

[0039] Figure 12 This is a schematic diagram of the powder-spreading device.

[0040] Explanation of reference numerals in the attached diagrams: 1A, Belt conveyor line; 1B, Conveyor line two; 1C, Conveyor line three; 1D, Conveyor line four; 1E, Conveyor line five; 2A. Thinning drive device one; 2B. Thinning drive device two; 3. Conveyor Line Six; 4. Cutting device; 41. Mounting frame two; 42. Lifting equipment; 43. Cutting blade; 5A. Inclined section; 5B. Horizontal section; 6A. Thinning and leveling device one; 6B. Thinning and leveling device two; 7. Cutting device; 8A. Powder Spreading Device 1; 8B. Powder Spreading Device 2; 8C. Powder Spreading Device 3; 9A, Conveyor Line Seven; 9B, Conveyor Line Eight; 9C, Conveyor Line Nine; 11. Column; 12. Coarse pressure roller; 13. Powder collection trough; 14. Upper scraper; 15. Conveyor frame; 16. Conveyor belt; 17. Powder collection box; 18. Lower scraper; 19. Power equipment; 21. Mounting frame one; 22. Turntable; 23. Fine pressure roller; 24. Pulley; 25. Drive belt one; 26. Guide wheel; 27. Rotating device one; 28. Translation device one; 29. ​​Rotating shaft; 210. Large pressure roller; 211. Rotating device two; 212. Translation ruler; 213. Scale line; 214. Slider one; 51. Frame 3; 511. Slide rail 1; 512. Slide base; 52. Slide carriage; 521. Roller 2; 522. Roller 1; 523. Adjusting roller 1; 524. Adjusting roller 2; 525. Adjusting frame; 526. Lifting rod; 527. Rod frame; 528. Mounting frame 3; 53. Conveyor belt one; 531. Upper inclined section; 532. Lower inclined section; 54. Reciprocating translation mechanism three; 541. Connecting component; 542. Transmission belt three; 543. Transmission wheel; 544. Rotating device five; 55. Fixed belt roller; 56. Rotating device four; 61. Frame 2; 62. Pressure Roller 1; 63. Pressure Roller 2; 64. Drive Belt 2; 65. Sliding Block 2; 66. Translation Device 2; 67. Rotation Device 8; 71. Frame 1; 72. Slide rail 2; 73. Reciprocating translation mechanism 1; 74. Slide plate; 75. Eccentric wheel; 76. Wheel seat; 77. Top rod; 78. Top frame; 79. Blade plate; 710. Pressure plate; 711. Cutting blade; 712. Sliding hole; 713. Rotating device 3; 81. Drive equipment; 82. Powder storage box; 83. Box cover; 84. Powder discharge roller. Detailed Implementation

[0041] The following is in conjunction with the appendix Figure 1-12 This application will be described in further detail.

[0042] In one aspect of this disclosure, a tart crust production line is provided, the tart crust production line having a belt conveyor and a dough thinning machine, the dough thinning machine including a thinning drive device and a thinning leveling device. The belt conveyor and the dough thinning machine will be described in detail below through a detailed description of the tart crust production line.

[0043] like Figure 1 and Figure 2As shown, the tart crust production line includes at least a belt conveyor line 1A and a cutting conveyor line. The discharge end of the belt conveyor line 1A is close to the cutting conveyor line and is equipped with a thinning drive device 2A. The thinning drive device 2A is configured to drive the dough at the discharge end of the belt conveyor line 1A to continue moving forward and thin the dough to form a crust before placing it on the cutting conveyor line below. The cutting conveyor line is equipped with a cutting device 7 for cutting the crust into tart crusts.

[0044] The belt conveyor line 1A is used to convey dough to the thinning drive device 2A. The belt conveyor line 1A can be any conveying equipment capable of conveying dough, preferably a belt conveyor. Belt conveying of dough helps to protect the dough and avoids dough falling or getting stuck, which would affect the conveying process.

[0045] When belt conveyor line 1A uses a belt conveyor, such as Figure 3 and Figure 4 As shown, the belt conveyor line 1A includes a conveyor frame 15, a conveyor belt 16 mounted on the conveyor frame 15, and a power unit 19. The power unit 19 drives the conveyor belt 16 to rotate. The conveyor belt 16 conveys the dough to the thinning drive device 2A. A coarse pressure roller 12 is mounted above the conveyor belt 16. The coarse pressure roller 12 is rotatably mounted on a column 11 and can move up and down along the column 11. The column 11 is vertically fixed on the conveyor frame 15. The purpose of setting the coarse pressure roller 12 is to pre-press the dough in advance to avoid the dough being too thick and affecting the subsequent thinning drive device 2A's thinning of the dough. The coarse pressure roller 12 is designed to be height-adjustable so that its height can be flexibly adjusted according to different dough thickness requirements. A specific adjustment method is, for example, to loosen the screws and adjust the height of the coarse pressure roller 12. Once the height of the coarse pressure roller 12 is adjusted to the correct position, tighten the screws to fix the coarse pressure roller 12 and the column 11 in place.

[0046] Furthermore, such as Figure 3 and Figure 4 As shown, the conveyor frame 15 is equipped with scrapers that contact the inner and outer sides of the conveyor belt 16. For example, one scraper can be set to contact both the inner and outer sides of the conveyor belt 16 simultaneously, or two scrapers can be set to contact the inner and outer sides of the conveyor belt 16 respectively. This allows the scrapers to remove debris adhering to the conveyor belt 16, such as residual flour residue from the previous production or spoiled flour, as the conveyor belt 16 rotates, thus ensuring food safety.

[0047] When two separate scrapers are used to contact the inner and outer sides of the conveyor belt 16 respectively, such as Figure 3 and Figure 4As shown, the scraper that contacts the inner side of the conveyor belt 16 is the upper scraper 14, and the scraper that contacts the outer side of the conveyor belt 16 is the lower scraper 18. The conveyor frame 15 is provided with a powder collection trough 13 located below the upper scraper 14 and a powder collection box 17 located below the lower scraper 18. The powder collection trough 13 and the powder collection box 17 collect the debris scraped off by the scraper, ensuring that the production line and the ground are clean and tidy.

[0048] In specific implementation, power equipment 19 can be selected from Figure 4 The servo motor shown is an example of a power source that can be other than a pneumatic motor.

[0049] In the embodiments disclosed herein, such as Figure 3 and Figure 4 As shown, the thinning drive device 2A includes: a mounting frame 21, a rotating device 27, a large pressure roller 210, and a rotating device 211. A turntable 22 is rotatably mounted on the mounting frame 21. For example, the turntable 22 is rotatably connected to the mounting frame 21 via a rotating shaft 29.

[0050] Multiple fine pressure rollers 23 are rotatably mounted on the turntable 22, distributed around the center of rotation of the turntable 22. The fine pressure rollers 23 can either revolve around the rotating shaft 29 under the drive of the turntable 22, or they can rotate on their own axis. The multiple fine pressure rollers 23 can be centrally symmetrically distributed around the center of rotation of the turntable 22, or they can be non-centrally symmetrically distributed, and are only arranged around the circumference of the center of rotation of the turntable 22.

[0051] The rotating device 27 is connected to the turntable 22 via a transmission to drive the turntable 22 to rotate, for example... Figure 4 The rotating device 27 shown is connected to the rotating shaft 29 via a drive.

[0052] like Figure 3 and Figure 4 As shown, the large pressure roller 210 is rotatably mounted on the mounting frame 21 and is arranged parallel to and spaced apart from the fine pressure roller 23, and is close to the discharge end of the belt conveyor line 1A. The large pressure roller 210 and the turntable 22 rotate to drive the dough at the discharge end of the belt conveyor line 1A to move forward and enter between the large pressure roller 210 and a fine pressure roller 23. With the help of the large pressure roller 210 and the fine pressure roller 23, the dough is pressed thin to form a sheet. The sheet of dough that leaves between the large pressure roller 210 and the fine pressure roller 23 falls onto the cutting conveyor line and is then sent away by the cutting conveyor line.

[0053] The rotating device 211 is mounted on the mounting frame 21 and is connected to the large pressure roller 210 to drive the large pressure roller 210 to rotate.

[0054] The large pressure roller 210 rotates at a speed slower than the turntable 22, and the speed difference between the two is significant. This design prevents the dough from being rolled out unevenly, ensuring that the dough is rolled out uniformly. Furthermore, the thinning drive device 2A does not use a single large flattening roller, but instead employs multiple small flattening rollers (i.e., fine pressure rollers 23) arranged circumferentially. Each small flattening roller can also rotate on its own. This design achieves both dough thinning and reliable dough propulsion, effectively solving the problem of slippage and dough stagnation that occurs with a traditional large flattening roller.

[0055] In specific implementation, rotating device 1 27 and rotating device 2 211 can be selected as follows: Figure 3 and Figure 4 The servo motor shown can also be a pneumatic motor or other power source, such as rotating device 27 or rotating device 211.

[0056] like Figure 4 As shown, a pulley 24 is coaxially fixed to the end of each fine roller 23. The pulleys 24 near the ends of multiple fine rollers 23 close to the large roller 210 are fitted with the same transmission belt 25. The mounting frame 21 is equipped with guide wheels 26 fitted by the transmission belt 25. That is, the transmission belt 25 passes over multiple pulleys 24 and guide wheels 26. The transmission belt 25 is configured to rotate under the drive of the fine rollers 23 in contact with the dough, and also drive at least one fine roller 23 not in contact with the dough to rotate. When the turntable 22 rotates... One of the fine rollers 23 is used to squeeze the dough. During the squeezing process, the fine roller 23 rotates, which in turn drives the transmission belt 25 to rotate. The transmission belt 25 drives the other fine rollers 23 that are not in contact with the dough and the guide wheel 26 to rotate. The purpose of this design is to reduce the rotation speed of the fine roller 23 that is squeezing the dough by using the transmission belt 25 and the other fine rollers 23 that are not in contact with the dough, so as to prevent the fine roller 23 from rotating too fast and tearing the dough. In other words, the function of the transmission belt 25 is to slow down the fine roller 23.

[0057] Furthermore, in order to meet the production needs of dough sheets of different thicknesses, the turntable 22 should be able to move radially to adjust the distance between the rotating shaft 29 and the large pressure roller 210. Therefore, a translation device 28 is designed on the mounting frame 21. The turntable 22 is rotatably connected to the translation device 28. The translation device 28 is constructed to drive the turntable 22 to translate and adjust the distance between the fine pressure roller 23 and the large pressure roller 210 to obtain dough sheets of different thicknesses.

[0058] To facilitate the rotational connection between turntable 22 and translation device 28, such as Figure 3 and Figure 4 As shown, the movable end of the translation device 28 is connected to the slider 214. The slider 214 is translated under the drive of the translation device 28, and the rotating shaft 29 is rotatably mounted on the slider 214.

[0059] To visualize the translation distance and facilitate spacing adjustment, such as Figure 3 As shown, the mounting bracket 21 has a scale line 213, and the slider 214 is connected to a translation ruler 212. The translation ruler 212 is close to the scale line 213. The slider 214 moves and drives the translation ruler 212 to move along the measurement direction of the scale line 213. With this design, the translation position of the slider 214 can be known in real time.

[0060] In practical implementation, translation equipment 28 can be selected. Figure 3 The lead screw motor shown can also be used for translation device 28, which can also be a linear actuator such as a push rod motor or a cylinder.

[0061] In addition, to ensure the smooth movement of the turntable 22, a pair of translation devices 28 are provided, located at both ends of the rotating shaft 29, such as... Figure 4 As shown.

[0062] In the embodiments disclosed herein, such as Figure 9 and Figure 10 As shown, the cutting device 7 includes: a frame 71, a reciprocating translation mechanism 2, and a top frame 78. The frame 71 is equipped with a reciprocating translation mechanism 73, and the reciprocating translation mechanism 2 is connected to the reciprocating translation mechanism 73. The reciprocating translation mechanism 73 drives the reciprocating translation mechanism 2 to reciprocate along the conveying direction of the cutting conveyor line, for example... Figure 9 and Figure 10 The conveying direction of the conveyor line 9C shown is horizontal, so the reciprocating translation mechanism 73 is used to drive the reciprocating translation mechanism 2 to move horizontally back and forth.

[0063] The top frame 78 is connected to the second reciprocating translation mechanism, which drives the top frame 78 to reciprocate up and down. Figures 9-11 As shown, a cutting blade 711 is provided at the lower end of the top frame 78. The cutting blade 711 is located above the cutting conveyor line. The top frame 78 reciprocates and moves up and down, driving the cutting blade 711 to reciprocate and move up and down. The cutting blade 711 descends to cut the dough on the cutting conveyor line into tart crusts.

[0064] Specifically, such as Figure 9 and Figure 10As shown, the reciprocating translation mechanism 73 includes a motor, pulleys 24, a transmission belt 25, and a slide rail 72. The slide rail 72 is mounted on the frame 71. The pulleys 24 are rotatably connected to the frame 71. There is a pair of pulleys 24, which are spaced apart. The pair of pulleys 24 are connected by the transmission belt 25. The motor is connected to the pulleys 24 to drive the pulleys 24 to rotate and move the transmission belt 25. The transmission belt 25 is connected to the reciprocating translation mechanism 2. Thus, the movement of the transmission belt 25 drives the reciprocating translation mechanism 2 to move synchronously. The reciprocating translation mechanism 2 is slidably connected to the slide rail 72 to ensure that the transmission belt 25 drives the reciprocating translation mechanism 2 to slide smoothly.

[0065] Specifically, such as Figure 9 and Figure 10 As shown, the reciprocating translation mechanism two includes a slide plate 74, an eccentric wheel 75, a wheel seat 76, a push rod 77, and a rotating device three 713. The slide plate 74 is connected to the transmission belt 25 and slidably connected to the slide rail 72. The push rod 77 is vertically slidably mounted on the slide plate 74. The rotating device three 713 is fixedly mounted on the frame 71. The rotating device three 713 is connected to the eccentric wheel 75, which is rotatably mounted on the wheel seat 76. The wheel seat 76 is hinged to the lower end of the push rod 77. During operation, the rotating device three 713 drives the eccentric wheel 75 to rotate, causing the wheel seat 76 to swing. The swinging of the wheel seat 76 drives the push rod 77 to move up and down. The upper end of the push rod 77 is connected to the top frame 78. The up and down movement of the push rod 77 drives the top frame 78 to reciprocate.

[0066] It should be noted that the specific structures of reciprocating translation mechanism 1 (73) and reciprocating translation mechanism 2 are not limited to... Figure 9 and Figure 10 As shown, in other embodiments, the reciprocating translation mechanism 1 73 and the reciprocating translation mechanism 2 can be devices such as linear motors and cylinders capable of reciprocating linear motion.

[0067] In specific implementation, rotating equipment 3713 can be selected. Figure 10 The servo motor shown can be replaced with other power sources such as pneumatic motors for rotating device 3713.

[0068] Furthermore, such as Figure 10 and Figure 11 As shown, a pressure plate 710 is elastically and vertically mounted on the lower end of the top frame 78. The pressure plate 710 has a sliding hole 712. The cutting blade 711 slides up and down through the sliding hole 712. This design allows the pressure plate 710 to press down the dough before controlling the cutting blade 711 to descend and cut the dough to make the tart crust. This avoids the dough shaking and shifting during the cutting process and ensures the quality of the tart crust cutting.

[0069] One specific form in which the pressure plate 710 is elastically raised and lowered at the lower end of the top frame 78 includes the pressure plate 710 being elastically connected to the top frame 78 via a vertically arranged spring.

[0070] To increase the mounting area of ​​the cutting blade 711, allowing for the installation of more cutting blades 711 and improving the efficiency of dough cutting, such as... Figure 10 and Figure 11 As shown, a blade plate 79 is provided at the lower end of the top frame 78, and a large-area cutting blade 711 is installed on the lower surface of the blade plate 79.

[0071] The cutting conveyor line is used to transport dough sheets. The cutting conveyor line can be any conveying equipment capable of transporting dough sheets, preferably a belt conveyor. Belt conveying of dough sheets helps to protect the dough sheets and prevents them from being torn and affecting the transport.

[0072] like Figure 1 and Figure 2 As shown, several thinning and leveling devices are installed upstream of the cutting device 7 on the conveying path of the cutting conveyor line, such as thinning and leveling device 1 6A, thinning and leveling device 2 6B, thinning and leveling device 3, etc.

[0073] Accordingly, the cutting conveyor line includes several leveling conveyor lines arranged in relay along the conveying direction. The discharge end of the upstream leveling conveyor line is close to its downstream adjacent leveling conveyor line and is equipped with a thinning and leveling device, for example... Figure 1 and Figure 2 The diagram shows three leveling conveyor lines: conveyor line 7 9A, conveyor line 8 9B, and conveyor line 9 9C. The number of leveling conveyor lines matches the number of thinning and leveling devices, and is not limited to three.

[0074] The thinning and leveling device is designed to drive the dough at the discharge end of the upstream leveling conveyor line forward, and after leveling and thinning the dough, place it on the downstream adjacent leveling conveyor line. After multiple leveling and thinning processes by multiple thinning and leveling devices, the surface of the dough is smooth and flat with uniform thickness, which improves the dough forming quality and enhances the quality of the tart crust.

[0075] In the embodiments disclosed herein, such as Figure 7 and Figure 8 As shown, the thinning and leveling device includes at least a frame 2 61 and a rotating device 8 67. A pair of spaced pressure rollers are rotatably mounted on the frame 2 61. The pair of pressure rollers are referred to as pressure roller 1 62 and pressure roller 2 63 respectively. The rotating device 8 67 is located on the frame 2 61 and is connected to pressure roller 1 62 for driving pressure roller 1 62 to rotate. The pressure roller 1 62 is constructed such that when it rotates, it drives the dough sheet at the discharge end of the upstream leveling conveyor line into the space between the pair of pressure rollers to be squeezed. After being squeezed, the dough sheet that leaves the space between the pair of pressure rollers falls down to the downstream adjacent leveling conveyor line.

[0076] The pressure roller 263 can be driven to rotate by the dough sheet, or it can be like... Figure 8As shown, several gears are set on the frame 2 61, and the transmission belt 2 64 is used to connect the pressure roller 1 62 and pressure roller 2 63 through the gears. In this way, both pressure roller 1 62 and pressure roller 2 63 can rotate actively, thereby better driving the dough to move forward.

[0077] In specific implementation, rotating equipment 867 can be selected. Figure 7 The servo motor shown can be replaced with other power sources such as pneumatic motors for rotating device 867.

[0078] Furthermore, the thinning and leveling device also includes a translation device 66, such as... Figure 7 and Figure 8 As shown, the translation device 2 66 is mounted on the frame 2 61 and connected to the pressure roller 2 63. It is used to drive the pressure roller 2 63 to move and adjust the distance between a pair of pressure rollers to meet the needs of different thicknesses of dough.

[0079] The structure and working principle of the translation device 266 are the same as those of the translation device 128. In order to facilitate the connection between the pressure roller 263 and the translation device 266, a slider 265 with the same structure and function as slider 1214 is also provided.

[0080] To ensure that pressure rollers 62 and 63 can smoothly drive and compress the dough, the thickness difference of the dough before and after passing through a pair of pressure rollers cannot be too large. Otherwise, slippage between the pressure rollers and the dough can occur, preventing pressure rollers 62 and 63 from smoothly driving and compressing the dough. If the final required dough thickness is small, multiple thinning and leveling devices are needed to thin the dough step by step. This results in a large number of leveling conveyor lines, a long tart crust production line, and high requirements for the installation environment. When factory space is limited, it is impossible to install a large number of leveling conveyor lines. Therefore, some of the thinning and leveling devices can be replaced with thinning drive device 2B, for example... Figure 1 and Figure 2 As shown, replacing the middle thinning and leveling device among the three thinning and leveling devices with thinning drive device 2B allows for a larger thickness difference in the dough before and after passing through thinning drive device 2B, without concerns about the dough not moving smoothly. Correspondingly, the number of thinning and leveling devices and leveling conveyor lines can be reduced. For example, if there were originally ten thinning and leveling devices with ten leveling conveyor lines, replacing two of the devices with thinning drive device 2B reduces the remaining eight devices to four or three, etc. The number of leveling conveyor lines is also reduced, thus shortening the tart crust production line length and lowering the requirements for the installation environment. The structure and working principle of thinning drive device 2B are the same as those of thinning drive device 2A.

[0081] If, after installing the thinning drive device 2B, the entire tart crust production line is still too long and installation is limited, then consider changing the conveying direction of the tart crust production line, changing the single conveying direction to one that can turn, for example... Figure 1 and Figure 2 As shown, the conveying direction has undergone a 90-degree turn, which allows for more flexible installation of the tart crust production line and reduces limitations.

[0082] The ability to change the conveyor direction on the tart crust production line is achieved through the following methods: Figure 1 and Figure 2 As shown, the cutting conveyor line also includes a segmenting conveyor line and a conveyor line 2B that are connected in series with the leveling conveyor line to convey the surface material.

[0083] The positions of the segmented conveyor line and conveyor line 1B can be set downstream, upstream, or between any two leveling conveyor lines in the conveying direction of the leveling conveyor line. Figure 1 and Figure 2 The diagram shows a segmented conveyor line and conveyor line 1B positioned upstream of the leveling conveyor line in the conveying direction. At this point, the discharge end of the belt conveyor line 1A is close to the segmented conveyor line, and the discharge end of the segmented conveyor line is close to and above conveyor line 1B. The discharge end of conveyor line 1B is close to the upstream leveling conveyor line and is equipped with a thinning and leveling device 6A. The dough sheet thinned by the thinning drive device 2A first passes through the segmented conveyor line and conveyor line 1B sequentially, and then enters the leveling conveyor line.

[0084] Regardless of where the cutting conveyor line and conveyor line 21B are located, the discharge end of the cutting conveyor line must always be close to and above conveyor line 21B.

[0085] Specifically, such as Figure 5 and Figure 6 As shown, the cutting conveyor line includes a frame 3 51 and a reciprocating translation mechanism 3 54. The frame 3 51 is provided with a slide 52 located at the discharge end of the cutting conveyor line and reciprocating along the conveying direction. For example, if the conveying direction is horizontal, the slide 52 reciprocates horizontally.

[0086] Such as 5 and Figure 6 As shown, a slide rail 511 is provided on the frame 3 51, and multiple slide blocks 512 are slidably installed on the slide rail 511. The slide frame 52 is fixedly connected to the slide blocks 512.

[0087] The slide 52 is equipped with a moving belt roller, and the frame 51 is also equipped with multiple fixed belt rollers 55 parallel to the moving belt roller and a rotating device 56 that drives the fixed belt rollers 55 or the moving belt rollers to rotate. The fixed belt rollers 55 and the moving belt rollers are covered with the same conveyor belt 53. The moving belt roller is designed to keep the conveyor belt 53 taut during the reciprocating sliding of the slide 52, so as to avoid the reciprocating sliding of the slide 52 affecting the conveying surface of the conveyor belt 53.

[0088] like Figure 5 and Figure 6 As shown, the moving belt roller includes at least belt roller one 522 and belt roller two 521. Belt roller one 522 and belt roller two 521 are respectively located at both ends of the sliding direction of the slide 52. Along the moving direction of the conveyor belt one 53, the conveyor belt one 53 passes through belt roller one 522, belt roller two 521 and multiple fixed belt rollers 55 in sequence. The conveyor belt one 53 rotates clockwise on belt roller one 522 and counterclockwise on belt roller two 521, so that the conveyor belt one 53 always remains taut during the reciprocating sliding process of the slide 52.

[0089] In specific implementation, rotating device 456 can be selected. Figure 5 The servo motor shown can be replaced with other power sources such as pneumatic motors for rotating device 456.

[0090] The reciprocating translation mechanism 3 54 is mounted on the frame 3 51 and connected to the slide 52. It is used to drive the slide 52 to slide back and forth along the conveying direction so that the segments of dough fall onto the conveyor line 2 1B.

[0091] like Figure 5 As shown, the reciprocating translation mechanism 54 includes a connector 541, a transmission belt 542, a transmission wheel 543, and a rotating device 544. There is a pair of transmission wheels 543, which are spaced apart along the conveying direction and are connected by the transmission belt 542. The rotating device 544 is connected to the transmission wheel 543 and drives the transmission wheel 543 to rotate. The connector 541 is connected to the transmission belt 542 and the slide 52. When the transmission wheel 543 rotates and drives the transmission belt 542 to move, the transmission belt 542 drives the slide 52 to slide through the connector 541.

[0092] It should be noted that the specific structure of the reciprocating translation mechanism 354 is not limited to... Figure 5 As shown, in other embodiments, the reciprocating translation mechanism 354 can be a linear motor, cylinder, or other device capable of reciprocating linear motion.

[0093] In the embodiments disclosed herein, such as Figure 5As shown, a cutting device 4 is provided upstream of the conveyor slide 52 on the cutting conveyor line. The cutting device 4 includes a lifting device 42 and a cutter 43 connected to the lifting device 42. The lifting device 42 is fixedly installed on the mounting frame 41. The mounting frame 41 is fixedly connected to the frame 51. The cutter 43 is located above the conveyor belt 53. The cutter 43 is adapted to descend under the drive of the lifting device 42 to cut the dough on the conveyor belt 53 into segments.

[0094] By adopting the above technical solution, the cutting device 4 cuts a long sheet of dough on conveyor belt 53 into segments, and then the slide 52 slides back and forth along the conveying direction to make the segments of dough fall onto conveyor line 1B. Figure 1 For example, when the front end of a piece of dough leaves the discharge end of conveyor belt 53 and falls onto conveyor line 1B, the slide 52 is controlled to move left away from conveyor line 1B. The friction between the front end of the dough and conveyor line 1B pulls the dough from conveyor belt 53 onto conveyor line 1B. Then, the slide 52 moves right to reset, and conveyor line 1B starts conveying dough to the thinning and leveling device 6A. The slide 52 then continues to move left, repeating the above actions, so that the next piece of dough falls onto conveyor line 1B. The conveying directions of belt conveyor 1A, conveyor belt 53, conveyor line 1B, and leveling conveyor line are as follows: Figure 1 As indicated by the middle arrow.

[0095] By controlling the conveying speed of conveyor line 21B, the front and rear sections of the dough that fall onto conveyor line 21B overlap. After being squeezed by the thinning and leveling device, the front and rear sections of dough are connected together to form a long dough. This design allows conveyor line 21B to be set freely and convey dough in any horizontal direction, without being limited to the same conveying direction as the cutting conveyor line, thus achieving the turning of the conveying direction.

[0096] Of course, the two sections of dough do not necessarily have to overlap; they can be left unoverlapped.

[0097] In specific implementation, the lifting device 42 can be selected as... Figure 5 The cylinder shown can also be a linear actuator such as a push rod motor or a hydraulic cylinder, or the lifting device 42 can be selected.

[0098] Furthermore, such as Figure 6 As shown, the slide 52 is provided with an adjustment frame 525 on the side near the discharge end of the cutting conveyor line. The end of the adjustment frame 525 away from the slide 52 is suitable for swinging up and down. When needed, the end of the adjustment frame 525 away from the slide 52 can swing up and down. After adjustment, the adjustment frame 525 and the slide 52 remain fixedly connected.

[0099] The swing end of the adjusting frame 525 is provided with an adjusting roller 523 parallel to the moving belt roller, and the conveyor belt 53 between the adjusting roller 523 and the belt roller 522 is an upwardly inclined section 531.

[0100] The slide 52 or the adjusting frame 525 is equipped with an adjusting roller 524 that is parallel to the adjusting roller 523 and is suitable for lifting and lowering. The adjusting roller 524 can be lifted and lowered when needed, and after being lifted and lowered to the correct position, it returns to a state where it can only rotate and cannot be lifted or lowered.

[0101] The adjusting roller 1 523 and adjusting roller 2 524 are fitted onto the same conveyor belt 1 53 as the fixed belt roller 55 and the moving belt roller. The conveyor belt 1 53 between adjusting roller 1 523 and adjusting roller 2 524 is a downwardly inclined section 532.

[0102] When the end of the adjusting frame 525 away from the slide 52 swings upward, the inclination angle of the upper inclined section 531 decreases, and the inclination angle and length of the lower inclined section 532 increase. Correspondingly, the second adjusting roller 524 needs to move upward to ensure that the end of the adjusting frame 525 away from the slide 52 swings upward smoothly, and the conveyor belt 53 remains taut throughout the swinging process of the adjusting frame 525. Similarly, when the end of the adjusting frame 525 away from the slide 52 swings downward, the second adjusting roller 524 needs to move downward.

[0103] Specifically, such as Figure 6 As shown, a lifting rod 526 is movably mounted on the slide 52, and an adjusting roller 524 is mounted on the lower end of the lifting rod 526. The lifting rods 526 located on both sides of the width direction of the conveyor belt 53 are fixedly connected by a rod frame 527. The rod frame 527 is movably mounted on a mounting frame 528, and the mounting frame 528 is fixedly connected to the slide 52.

[0104] During the installation and commissioning of the segmented conveyor line and conveyor line 21B, the position of the discharge end of the segmented conveyor line can be finely adjusted by swinging the adjusting frame 525 up and down, which facilitates the quick commissioning of the discharge end of the segmented conveyor line into place.

[0105] like Figure 1 As shown, the cutting conveyor line has an inclined section 5A and a horizontal section 5B. The cutting device 4 and the carriage 52 are located in the horizontal section 5B, and the thinning drive device 2A is located in the inclined section 5A. This design facilitates the falling of the dough leaving the thinning drive device 2A onto the cutting conveyor line.

[0106] In the embodiments disclosed herein, such as Figure 1 and Figure 2 As shown, the cutting conveyor line is also equipped with scrapers, such as the segmenting conveyor line, conveyor line 2B, and leveling conveyor line, to ensure that the conveyor line is clean and tidy and to ensure the safety of the dough.

[0107] In the embodiments disclosed herein, such as Figure 1 and Figure 2 As shown, the feed end of the belt conveyor line 1A and / or the cutting conveyor line is equipped with a powdering device. The multiple powdering devices are powdering device 1 8A, powdering device 2 8B, powdering device 3 8C, powdering device 4, etc. The powdering devices are used to sprinkle powder on the conveyor line to prevent dough and dough from sticking to the conveyor belt and affecting the tart crust conveying operation.

[0108] Specifically, such as Figure 12 As shown, the powder spreading device includes a powder storage box 82 with an open bottom and a powder discharge roller 84 located at the bottom of the powder storage box 82. The powder discharge roller 84 is configured to cause the powder in the powder storage box 82 to fall from the bottom of the box to the feed end of the belt conveyor line 1A and / or the cutting conveyor line when it rotates.

[0109] The powder-spreading device also includes a drive unit 81, which drives the powder-dispensing roller 84 to rotate. The powder storage box 82 also includes a box cover 83.

[0110] In the embodiments disclosed herein, such as Figure 1 As shown, the tart crust production line also includes a return conveyor line for returning leftover dough to the belt conveyor line 1A to be mixed with the dough for reuse.

[0111] Specifically, the return material conveyor line includes conveyor line 63, conveyor line 31C, conveyor line 41D, and conveyor line 51E arranged sequentially along the conveying direction. The feeding end of conveyor line 63 is close to the leveling conveyor line downstream of the cutting device 7 (i.e., Figure 1 The tart crusts leaving the cutting device 7 continue to be conveyed downstream by conveyor line 9C. The remaining dough is initially guided to conveyor line 63. Conveyor line 63 rotates to guide the remaining dough on conveyor line 9C to move continuously onto conveyor line 63. The remaining dough is then conveyed to conveyor line 3C, from conveyor line 3C to conveyor line 4D, and then sent back to belt conveyor line 1A via conveyor line 5E to be mixed with dough for reuse, thus saving costs.

Claims

1. A belt conveyor line, comprising a conveyor frame and a conveyor belt mounted on the conveyor frame, and a power unit, wherein the power unit is used to drive the conveyor belt to rotate, characterized in that: The conveyor frame is equipped with a scraper that contacts the inner and outer sides of the conveyor belt. The scraper is designed to remove debris adhering to the conveyor belt as it rotates.

2. The belt conveyor line according to claim 1, characterized in that: There are two scrapers, which contact the inner and outer sides of the conveyor belt, respectively.

3. The belt conveyor line according to claim 1, characterized in that: The conveyor frame is equipped with a powder collection trough, which is located below the scraper and is used to collect the debris scraped off by the scraper.

4. The belt conveyor line of claim 1, wherein: The conveyor frame is equipped with a powder collection box, which is located below the scraper and is used to collect the debris scraped off by the scraper.

5. The belt conveyor line according to claim 1, characterized in that: A coarse pressure roller is mounted above the conveyor belt in a height-adjustable manner.

6. The belt conveyor line according to claim 5, characterized in that: The coarse pressure roller is rotatably mounted on the column and can move up and down along the column, which is vertically fixed on the conveyor frame.

7. A dough sheeter machine characterized by: The invention includes a belt conveyor and a cutting conveyor according to any one of claims 1-6, wherein the discharge end of the belt conveyor is close to the cutting conveyor and is provided with a thinning drive device 1, wherein the thinning drive device 1 is configured to drive the dough at the discharge end of the belt conveyor forward and thin the dough to form a sheet before placing it on the cutting conveyor.

8. A dough sheeter machine according to claim 7, characterised in that: The thinning drive device includes: Mounting frame one, on which a turntable is rotatably mounted, and multiple fine pressure rollers distributed around the center of rotation of the turntable are rotatably mounted on the turntable; Rotating device one is connected to the turntable drive to drive the turntable to rotate; The large pressure roller is rotatably mounted on the mounting frame and spaced apart from the fine pressure roller, and close to the discharge end of the belt conveyor. The large pressure roller and the turntable rotate to drive the dough at the discharge end of the belt conveyor into the space between the large pressure roller and a fine pressure roller, and press the dough thin to form a sheet. The sheet that leaves the space between the large pressure roller and the fine pressure roller falls onto the cutting conveyor. The second rotating device is connected to the large pressure roller drive to drive the large pressure roller to rotate.

9. The dough rolling machine according to claim 8, characterized in that: The mounting frame is equipped with a translation device, and the turntable is rotatably connected to the translation device. The translation device is configured to drive the turntable to translate and adjust the distance between the fine pressure roller and the large pressure roller.

10. A dough sheeter machine according to claim 8, characterised in that: Each fine roller has a pulley fixedly mounted coaxially at its end. The pulleys at the ends of multiple fine rollers near the large roller are fitted with the same transmission belt. The mounting frame is equipped with a guide wheel fitted by the transmission belt. The transmission belt is configured to rotate under the drive of the fine rollers in contact with the dough, and drive at least one fine roller that is not in contact with the dough to rotate.

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