Rotary cake forming machine

Abstract

A rotary cake forming machine comprises a machine base, a rotary disc is arranged on the machine base, three or more sets of discharging and forming ejection assemblies are arranged on the rotary disc, each discharging and forming ejection assembly comprises a material chamber base, a material pushing rod is arranged in each material chamber base, a groove is formed in each material pushing rod, a material pushing block is arranged in each groove, and a material chamber is formed by the upper ends of the material pushing rods and the material pushing blocks and the inner wall of each material chamber base. A double-head pushing air cylinder is arranged at the position, below the material chamber base, of the rotary disc, a double-head pushing piston rod is arranged in the double-head pushing air cylinder, the upper end of the double-head pushing piston rod penetrates through the rotary disc to be fixedly connected with a pushing rod, an ejector rod is arranged in the double-head pushing piston rod, and the upper end of the ejector rod is fixedly connected with a pushing block. A fixing column is arranged in the machine base, the upper end of the fixing column penetrates through the rotary disc, a fixing frame is arranged on the fixing column, a die assembly forming device is arranged on the fixing frame, and the die assembly forming device is matched with a material block on the discharging and forming ejection assembly.

Description

Technical Field

[0001] This utility model relates to pastry machines, and more particularly to a rotary pastry forming machine, belonging to the technical field of food production and processing equipment. Background Technology

[0002] To boost sales, pastries need not only good taste but also an attractive appearance. Traditionally, to achieve this, mass-produced pastries are made by manually placing ingredients (usually a mixture of flour, sugar, oil, eggs, dairy products, etc.) into molds, pressing them into the desired shape, and then manually opening the molds to remove the pre-formed pastry. This method is inefficient, labor-intensive, costly, and unhygienic. Therefore, people invented the pastry molding production line. By placing the material blocks onto the conveyor belt of the production line, when the blocks reach the corresponding position in the mold, a sensor detects this and controls the mold to press down, molding the blocks into shape. If the pastry shape is complex or unusual, it cannot be directly ejected after molding. The mold needs to be divided into two or even four templates, each driven by a cylinder. When the blocks reach the corresponding position in the mold, each template opens and moves downwards towards the blocks. The templates then press the blocks from all four sides towards the center, molding them. Finally, the templates open and rise, allowing the molded pastry to be ejected from the mold. The material is then conveyed to the next process. However, this structure has the following drawbacks: First, each mold is opened first, and then the material is molded from all four sides to the center. During the mold closing process (before the mold is fully closed), the material is already being squeezed. The material is easily squeezed into the gaps between the molds, thus forming flash and affecting the shape of the pastry. Second, when the molded pastry is conveyed to the next process on the conveyor belt, the pastry is still relatively soft at this time. It is easy to deform the pastry by directly grabbing it with a robotic arm, which is inconvenient to grab. This is especially true for some pastries with a large bottom area (such as tart-shaped pastries), which are more firmly attached to the conveyor belt and are more difficult to grab. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a rotary pastry forming machine that allows the material block to be completely squeezed into the mold without overflowing or flash at the bottom, and without flash forming around the perimeter of the pastry, thus ensuring its beautiful appearance and making it easy to pick up the molded pastry.

[0004] The technical solution of this utility model for a rotary pastry forming machine is as follows: It includes a base, on which a turntable is mounted. The turntable is driven to rotate by a motor. The turntable is equipped with three or more sets of feeding and forming ejection components. Each feeding and forming ejection component includes a material chamber seat, which is fixed to the turntable by fasteners. A pusher rod is mounted in the material chamber seat, with a groove in the pusher rod. A pusher block is placed in the groove. The upper ends of the pusher rod and the pusher block form a material chamber with the inner wall of the material chamber seat. The material block is placed in the material chamber. The turntable is located below the material chamber seat. A double-headed pusher cylinder is provided, with a double-headed pusher piston rod inside. The upper end of the double-headed pusher piston rod passes through the turntable and is fixedly connected to the pusher rod. A pusher rod is provided inside the double-headed pusher piston rod, with the upper end of the pusher rod fixedly connected to the pusher block. The lower end of the pusher rod is driven to push up or fall down by an ejection device. A fixing column is provided in the machine base, with the upper end of the fixing column passing through the turntable. A fixing frame is provided above the fixing column on the turntable. A mold closing and forming device is provided on the fixing frame. The mold closing and forming device cooperates with the material block on the feeding and forming ejection assembly.

[0005] Furthermore, the mold-closing and forming device includes a double-headed mold-closing cylinder, which is fixed to a fixed frame. The upper end of the double-headed mold-closing piston rod of the double-headed mold-closing cylinder is connected to a locking cylinder. The piston rod of the locking cylinder is connected to an upper plate. A locking rod is provided in the upper plate. A locking seat is provided at the lower end of the locking rod. A locking cavity is opened in the locking seat. A soft mold made of soft silicone material is provided at the lower end of the double-headed mold-closing piston rod. Two or more templates are provided under the soft mold. The templates are opened or closed by an opening and closing device. The outer wall of the templates cooperates with the locking cavity of the locking seat. The inner wall of the templates cooperates with the material block on the feeding and forming ejection assembly.

[0006] Furthermore, the opening and closing device includes a gripper seat, which is fixed to the lower end of the double-headed mold closing piston rod. A connecting groove is opened in the gripper seat, and a gripper is set in the connecting groove. The upper end of the gripper is rotatably connected to the connecting groove via a pin. A gripper spring is set between the gripper and the connecting groove. The lower end of the gripper is fixedly connected to the outer wall of the template. The inner wall of the gripper cooperates with the upper end of the mold locking seat.

[0007] Furthermore, the gripper has a threaded hole, and an adjusting screw is installed in the threaded hole. The adjusting screw cooperates with the upper end of the mold locking base.

[0008] Furthermore, an upper connecting plate is provided on the mold-locking cylinder, and a positioning rod is provided on the upper connecting plate. The positioning rod is fixed to the upper connecting plate by fasteners. A positioning groove is opened on the outer wall of the positioning rod. A lower connecting plate is provided on the double-headed mold-closing cylinder, and a through hole is opened in the lower connecting plate. A positioning bead and a third spring are provided on the side of the lower connecting plate located at the through hole. The positioning bead cooperates with the positioning groove.

[0009] Furthermore, the mold-closing and forming device includes a lifting cylinder, which is fixed to a fixed frame. The piston rod of the lifting cylinder passes through the fixed frame and connects to a pneumatic finger cylinder. Two or more pneumatic fingers are set under the pneumatic finger cylinder. A hard mold made of rigid PE material is set under each pneumatic finger. The hard mold cooperates with the material block on the feeding and forming ejection assembly.

[0010] Furthermore, the ejection device includes a spring seat at the lower end of the double-headed pusher piston rod, the lower end of the ejector rod passing through the double-headed pusher piston rod, a fixing block on the outer wall of the ejector rod, a second spring between the fixing block and the spring seat, a guide bracket on the fixing column, and an arc-shaped, upward-inclined guide rail on the guide bracket, with the lower end of the ejector rod cooperating with the guide rail.

[0011] Furthermore, a steel ball is provided at the lower end of the push rod, and the steel ball cooperates with the guide rail.

[0012] Furthermore, an air inlet is provided in the turntable, an air inlet channel is provided in the material chamber seat, and a vent is provided at the bottom of the push rod. Air blowing holes are evenly distributed in the push rod, and the air inlet is connected to the air blowing holes through the air inlet channel and the vent.

[0013] The beneficial effects of this rotary pastry forming machine are as follows: 1. When the material block is placed in the material chamber formed by the material chamber seat of the feeding and forming ejection assembly, only the upper half of the material block is exposed, while the lower half is in the material chamber. This ensures that when the mold (soft mold or hard mold) is in the closed state and pressing downwards, the material at the bottom of the material block will not overflow from the gap between the mold and the material chamber seat. Then, the ejection device drives the push rod, the push block, and the material block to move upwards together, so that the entire material block can be squeezed into the mold, thereby avoiding overflow and flash. 2. The mold presses the material block in the closed state, so that no flash will form around the formed pastry, ensuring its beautiful appearance. 3. After the pastry is molded, the ejector rod pushes the pastry upwards, and the bottom center of the pastry contacts the ejector rod. The bottom of the pastry is suspended around the edges, making it convenient for manual or robotic arms to remove the pastry from the bottom around the edges, avoiding deformation of the pastry. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a rotary pastry forming machine according to this utility model;

[0015] Figure 2 yes Figure 1 A schematic diagram of the cross-section along the A-A direction;

[0016] Figure 3 This is a schematic diagram of the downward movement state of the push rod and push block of the feeding and forming ejection assembly;

[0017] Figure 4 This is a schematic diagram of the upward movement structure of the push rod and push block of the feeding and forming ejection assembly;

[0018] Figure 5 This is a schematic diagram of the ejection state of the pusher block of the feeding and forming ejection assembly;

[0019] Figure 6 This is a schematic diagram of the mold opening state of the mold-closing forming device, where the mold is a soft mold;

[0020] Figure 7 This is a schematic diagram of the mold closing and locking state structure of the mold forming device with a soft mold.

[0021] Figure 8 yes Figure 7 Schematic diagram of the cross section in the B-B direction;

[0022] Figure 9 yes Figure 8 A magnified view of a portion at point C;

[0023] Figure 10 This is a partially enlarged schematic diagram showing the positioning cylinder driving the positioning rod to press the positioning ball downward through the positioning groove.

[0024] Figure 11 This is a schematic diagram of the mold opening state of the mold-forming device, where the mold is a hard mold.

[0025] In the attached diagram: 1. Machine base; 11. Turntable; 12. Motor; 13. Material block; 14. Fixed column; 141. Guide bracket; 142. Guide rail; 15. Fixed frame; 2. Double-headed mold closing cylinder; 21. Double-headed mold closing piston rod; 22. Mold locking cylinder; 221. Upper connecting plate; 222. Positioning rod; 223. Positioning groove; 224. Lower connecting plate; 225. Through hole; 226. Positioning bead; 227. Third spring; 23. Upper plate; 24. Mold locking rod; 25. Mold locking base; 26. Mold locking cavity; 28. Soft mold; 29. ​​Template; 291. Clamping jaw base; 292. Connector 293. Groove; 294. Gripper; 295. Gripper spring; 296. Adjusting screw; 3. Feeding and forming ejection assembly; 30. Material chamber; 31. Material chamber seat; 311. Air inlet; 312. Air inlet channel; 313. Vent hole; 314. Air blowing hole; 32. Push rod; 33. Groove; 34. Push block; 35. Double-headed push cylinder; 36. Double-headed push piston rod; 361. Spring seat; 362. Second spring; 37. Push rod; 371. Fixing block; 372. Steel ball; 41. Lifting cylinder; 42. Pneumatic finger cylinder; 43. Pneumatic finger; 44. Hard mold. Detailed Implementation

[0026] This utility model relates to a rotary pastry forming machine, such as... Figure 1 — Figure 11As shown, the machine includes a base 1, on which a turntable 11 is mounted. The turntable 11 is rotated by a motor 12. The turntable 11 is equipped with three or more sets of feeding and forming ejection components 3. Each feeding and forming ejection component 3 includes a material chamber seat 31, which is fixed to the turntable 11 by fasteners. A pusher rod 32 is mounted in the material chamber seat 31, with a groove 33 in the pusher rod 32. A pusher block 34 is mounted in the groove 33. The upper ends of the pusher rod 32 and the pusher block 34 form a material chamber 30 with the inner wall of the material chamber seat 31. A material block 13 is placed in the material chamber 30. The turntable 11 is located below the material chamber seat 31 and is equipped with a double-headed pusher pneumatic device. The cylinder 35, a double-headed pusher cylinder 35, is equipped with a double-headed pusher piston rod 36. The upper end of the double-headed pusher piston rod 36 passes through the turntable 11 and is fixedly connected to the pusher rod 32. The double-headed pusher piston rod 36 is equipped with a pusher rod 37. The upper end of the pusher rod 37 is fixedly connected to the pusher block 34. The lower end of the pusher rod 37 is driven to push up or fall down by the ejection device. The machine base 1 is equipped with a fixing column 14. The upper end of the fixing column 14 passes through the turntable 11. The fixing column 14 is located above the turntable 11 and is equipped with a fixing frame 15. The fixing frame 15 is equipped with a mold closing and forming device. The mold closing and forming device cooperates with the material block 13 on the feeding and forming ejection assembly 3.

[0027] Furthermore, the mold-closing and forming device includes a double-headed mold-closing cylinder 2, which is fixed to a fixed frame 15. The upper end of the double-headed mold-closing piston rod 21 of the double-headed mold-closing cylinder 2 is connected to a locking cylinder 22. The piston rod of the locking cylinder 22 is connected to an upper plate 23. A locking rod 24 is provided in the upper plate 23. A locking seat 25 is provided at the lower end of the locking rod 24. A locking cavity 26 is opened in the locking seat 25. A soft mold 28 made of soft silicone material is provided at the lower end of the double-headed mold-closing piston rod 21. Two or more templates 29 are provided below the soft mold 28. The templates 29 are opened or closed by an opening and closing device. The outer wall of the template 29 cooperates with the locking cavity 26 of the locking seat 25. The inner wall of the template 29 cooperates with the material block 13 on the feeding and forming ejection assembly 3.

[0028] Furthermore, the opening and closing device includes a gripper seat 291, which is fixed to the lower end of the double-headed mold closing piston rod 21. A connecting groove 292 is provided in the gripper seat 291, and a gripper 293 is provided in the connecting groove 292. The upper end of the gripper 293 is rotatably connected to the connecting groove 292 via a pin. A gripper spring 294 is provided between the gripper 293 and the connecting groove 292. The lower end of the gripper 293 is fixedly connected to the outer wall of the template 29. The inner wall of the gripper 293 cooperates with the upper end of the mold locking seat 25. When the mold needs to be opened, the piston rod of the mold-locking cylinder 22 drives the upper plate 23, the mold-locking rod 24, and the mold-locking seat 25 to move upward. As the mold-locking seat 25 moves upward, its mold-locking cavity 26 releases the mold-locking state from the soft mold 28. The upper end of the mold-locking seat 25 engages with the inner wall of the gripper 293. The mold-locking seat 25 pushes the gripper 293 to open outward. The upper end of the gripper 293 rotates around the pin in the connecting groove 292 and squeezes the gripper spring 294. The lower end of the gripper 293 drives the template 29 to open. When the mold needs to be closed and locked, the piston rod of the mold-locking cylinder 22 drives the upper plate 23, the mold-locking rod 24, and the mold-locking seat 25 to move downward. Under the action of the restoring force, the gripper spring 294 drives the gripper 293 to return to its original position. The gripper 293 drives the template 29 to close. Finally, the mold-locking cavity 26 of the mold-locking seat 25 is once again fitted onto the outer wall of the soft mold 28, thus locking the soft mold 28.

[0029] Furthermore, the gripper 293 has a threaded hole, and an adjusting screw 295 is installed in the threaded hole. The adjusting screw 295 cooperates with the upper end of the mold locking base 25. With the adjusting screw 295, if the adjusting screw 295 is rotated downward, the distance between it and the mold locking base 25 is closer, and the mold locking base 25 moves upward a short distance before contacting the adjusting screw 295, thus causing the gripper 293 and the soft mold 28 to open. If the adjusting screw 295 is rotated upward, the distance between it and the mold locking base 25 is farther, and the mold locking base 25 moves upward a longer distance before contacting the adjusting screw 295, thus causing the gripper 293 and the soft mold 28 to open. The vertical height can be adjusted by rotating the adjusting screw 295, thereby adjusting the upward movement distance of the mold locking base 25 and the opening timing of the soft mold 28, making the mold opening and closing actions more precise.

[0030] Furthermore, the clamping cylinder 22 is provided with an upper connecting plate 221, and a positioning rod 222 is provided on the upper connecting plate 221. The positioning rod 222 is fixed to the upper connecting plate 221 by fasteners. A positioning groove 223 is opened on the outer wall of the positioning rod 222. A lower connecting plate 224 is provided on the double-headed clamping cylinder 2. A through hole 225 is opened in the lower connecting plate 224. A positioning bead 226 and a third spring 227 are provided on one side of the lower connecting plate 224 located at the through hole 225. The positioning bead 226 cooperates with the positioning groove 223. When the double-headed mold-closing cylinder 2 drives the soft mold 28 and the locking mold base 25 downward to mold the pastry, the upper part of the double-headed mold-closing piston rod 21 of the double-headed mold-closing cylinder 2 also drives the locking cylinder 22, the upper connecting plate 221, and the positioning rod 222 to move downward. At this time, the positioning groove 223 on the outer wall of the positioning rod 222 moves downward and presses the positioning bead 226 inward (at this time, the upper edge of the positioning groove 223 is slightly lower than the positioning bead by 0.2-0.3mm, and the two are still in a mating state, as shown in the attached figure). Figure 10 As shown in the attached diagram, after the pastry is molded, the air pressure in the double-headed mold-closing cylinder 2 stops. The third spring 227, under the action of the restoring force, pushes the positioning bead 226 towards the positioning groove 223, causing the positioning groove 223 of the positioning rod 222 to move upwards by 0.2-0.3 mm, so that the positioning groove 223 and the positioning bead 226 correspond exactly (as shown in the attached diagram). Figure 9 As shown), the positioning rod 222 drives the upper connecting plate 221, the mold-locking cylinder 22, and the double-headed mold-closing piston rod 21 of the double-headed mold-closing cylinder 2 to move upward by 0.2-0.3mm. The lower end of the double-headed mold-closing piston rod 21 drives the soft mold 28 and the mold-locking seat 25 to move upward by 0.2-0.3mm together, so that the bottom surface of each template 29 of the soft mold 28 is separated from the upper end surface of the material chamber seat 31. In this way, when each template 29 opens in four directions, the bottom surface of the template 29 will not be unable to open due to its adhesiveness (because the template 29 is made of soft silicone material, when the mold is opened directly, the friction between its bottom and the upper end of the material chamber seat 31 is large, and it is easy to get stuck).

[0031] Furthermore, the mold-closing and forming device includes a lifting cylinder 41, which is fixed to a fixed frame 15. The piston rod of the lifting cylinder 41 passes through the fixed frame 15 and connects to a pneumatic finger cylinder 42. Two or more pneumatic fingers 43 are arranged under the pneumatic finger cylinder 42, and a hard mold 44 made of rigid PE material is arranged under each pneumatic finger 43. The hard mold 44 cooperates with the material block 13 on the feeding and forming ejection assembly 3. When the hard mold 44 made of rigid PE material is used, the pneumatic finger cylinder 42 first drives each pneumatic finger 43 and the hard mold 44 to close the mold, and then the piston rod of the lifting cylinder 41 drives the pneumatic finger cylinder 42 and the hard mold 44 to press down together onto the material block 13 of the feeding and forming ejection assembly 3.

[0032] Furthermore, the ejection device includes a spring seat 361 at the lower end of the double-headed pusher piston rod 36, the lower end of the ejector rod 37 passing through the double-headed pusher piston rod 36, a fixing block 371 on the outer wall of the ejector rod 37, a second spring 362 between the fixing block 371 and the spring seat 361, a guide bracket 141 on the fixing column 14, a guide rail 142 inclined upward in an arc shape on the guide bracket 141, and the lower end of the ejector rod 37 cooperating with the guide rail 142. When the turntable 11 rotates the feeding and forming ejection assembly 3 to the guide rail 142, the bottom of the ejector rod 37 contacts the guide rail 142. Under the guidance of the arc-shaped, upward-sloping guide rail 142, the ejector rod 37 is gradually pushed upward. The ejector rod 37 drives the pusher block 34 upward, and the pusher block 34 pushes the molded pastry upward, so that the bottom of the pastry around its perimeter is separated from the pusher rod 32 (that is, the bottom ring of the pastry around its perimeter is exposed). This makes it easier for the robot or worker to pick up the pastry from the bottom, avoiding the deformation caused by taking it directly from the upper side wall of the pastry.

[0033] Furthermore, a steel ball 372 is provided at the lower end of the push rod 37, and the steel ball 372 cooperates with the guide rail 142. With the steel ball 372, when the push rod 37 slides along the guide rail 142, wear is reduced and service life is improved.

[0034] Furthermore, the turntable 11 has an air inlet 311, the material chamber seat 31 has an air inlet channel 312, and the push rod 32 has a vent hole 313 at its bottom. The push rod has evenly distributed air blowing holes 314. The air inlet 311 communicates with the air blowing holes 314 via the air inlet channel 312 and the vent hole 313. After the pastry is molded, an air pump blows air pressure from the air inlet 311, the air inlet channel 312, the vent hole 313, and finally out through the air blowing hole 314, preventing the bottom of the pastry from sticking to the push rod 32. When the ejector rod 37 and the push block 34 eject the molded pastry, deformation due to the bottom of the pastry sticking to the push rod 32 is avoided.

[0035] This utility model discloses a rotary pastry forming machine. It features three or more sets of feeding and forming ejection components 3 on a turntable 11, typically four sets. In the first set of feeding and forming ejection components 3 (the feeding and forming ejection component 3 corresponding to the mold-closing forming device), the push rod 32 and push block 34 of the material chamber seat 31 are in a downward position, forming a material chamber 30 in the material chamber seat 31. A worker or robot places a material block 13 into the material chamber 30. Then, the piston rod of the mold-closing forming device's locking cylinder 22 drives the upper plate 23 downward. The upper plate 23 drives the locking rod 24 and locking seat 25 downward (at this time, the soft mold 28 is in a closed state), causing the locking seat 25 to fit over the soft mold 28. 25 clamps onto the outer walls of each template 29 of the soft mold 28, acting as a mold lock. Then, the upper part of the double-headed mold-closing piston rod 21 of the double-headed mold-closing cylinder 2 drives the mold-locking cylinder 22, the upper plate 23, the mold-locking rod 24, and the mold-locking seat 25 to move downwards together. At the same time, the lower part of the double-headed mold-closing piston rod 21 drives the gripper seat 291, the gripper 203, and the soft mold 28 to move downwards together, so that the soft mold 28 presses against the upper end of the material chamber seat 31 of the feeding and forming ejection assembly 3, and the upper half of the material block 13 is squeezed into the soft mold 28. At this time, the upper part of the double-headed pushing piston rod 36 of the double-headed pushing cylinder 35 drives the pushing rod 32, the pushing block 34, and the material block 13 to move upwards together, so that the lower half of the material block 13 is also squeezed into the soft mold 28, until the pushing rod 32 and the pushing... The upper surface of the material block 34 is flush with the upper surface of the material chamber seat 31, so that the entire material block 13 is squeezed into the soft mold 28 for molding. Then, the piston rod of the locking cylinder 22 drives the upper plate 23, locking rod 24, and locking seat 25 to move upward. The locking seat 25 moves upward and disengages from the soft mold 28. At the same time, the upper end of the locking seat 25 engages with the clamping jaws 293 of the opening and closing device. The locking seat 25 pushes the clamping jaws 293 to open, and the clamping jaws 292 drive each mold plate 29 to open outward, so that the molded pastry is ejected. Then, the double-headed closing cylinder 2 drives the soft mold 28 to rise. During the rising process, the inner wall of the clamping jaws 293 disengages from the upper end of the locking seat 25. Under the action of the restoring force of the clamping jaw spring 294, the clamping jaws 293 drive the soft mold 28 to close, and the soft mold... The die 28 is re-engaged into the mold locking seat 25, ready for the next molding operation. (If the mold of the mold closing device is a hard mold 44 made of PE material, the pneumatic fingers 43 of the pneumatic finger cylinder 42 first drive the hard molds 44 to close, then the piston rod of the lifting cylinder 41 drives the pneumatic finger cylinder 42 and the closed hard molds 44 to move downward together to contact the upper end of the material chamber seat 31. Then the upper end of the double-headed pusher piston rod 36 of the double-headed pusher cylinder 35 drives the pusher rod 32, the pusher block 34 and the material block 13 to move upward together, so that the lower half of the material block 13 is also squeezed into the soft mold 28, until the upper end face of the pusher rod 32 and the pusher block 34 is flush with the upper end face of the material chamber seat 31, so that the entire material block 13 is squeezed into the soft mold 28 for molding.)Next, the pneumatic finger cylinder 31 drives the pneumatic finger 43 and the hard mold 44 to open the mold, allowing the hard mold 44 to eject the molded pastry. Then, the piston rod of the lifting cylinder 41 drives the pneumatic finger cylinder 42 and the hard mold 44 to rise together, preparing for the next molding action. Meanwhile, the motor 12 drives the turntable 11 to rotate, causing the first set of feeding and forming ejection components 3 to rotate to the second station. Air pressure is blown out through the air inlet 311, air inlet channel 312, air vent 313, and air blowing hole 314 of the turntable 11 to prevent the bottom of the pastry from sticking to the push rod 32. At the same time, the steel ball 372 at the bottom of the ejector rod 37 contacts the guide rail 142. Then, the motor 12 continues to drive the turntable 11 to rotate, causing the first set of feeding and forming ejection components 3 to rotate to the third station. The steel ball 372 at the bottom of the ejector rod 37 also gradually moves upward along the guide rail 142. The lower part of the fixed block 371 pushes the second spring 362 upward, while the upper end of the push rod 37 pushes the molded pastry upward, causing the bottom of the pastry to disengage from the push rod 32. At this time, the worker or robot can remove the ejected pastry and place it in the next process. Finally, the motor 12 drives the first set of feeding and forming ejection components 3 to rotate to the fourth station. The steel ball 372 at the bottom of the push rod 37 disengages from the guide rail 142. Under the action of the restoring force, the second spring 362 pushes the fixed block 371 and the push rod 37 to return to their original position downward. At the same time, the double-headed push piston rod 36 of the double-headed push cylinder 35 also drives the push rod 32 and the push block 34 to return to their original position downward, so that the material chamber seat 31 and the push rod 32 and the push block 34 form a material chamber 30 again, which makes it convenient for people or robots to put the material block 13 into the material chamber 30, ready for the next molding action. This solution describes a rotary pastry forming machine. First, the material block 13 is placed into the material chamber 30 formed by the material chamber seat 31 of the feeding and forming ejection assembly 3. Only the upper half of the material block 13 is exposed, while the lower half is inside the material chamber 30. This prevents the material at the bottom of the material block 13 from overflowing from the gap between the mold and the material chamber seat 31 when the mold (soft mold 28 or hard mold 44) ​​is pressed downwards in the mold-closed state. Then, the ejection device drives the push rod 32, the push block 34, and the material block 13 to move upwards together, allowing the entire material block 13 to be squeezed into the mold, thus avoiding overflow and flash. Second, the mold presses the material block in the mold-closed state, preventing flash from forming around the edges of the formed pastry and ensuring its aesthetic appearance. Third, after the pastry is molded, the ejector rod 37 pushes the pastry upwards, with the bottom center of the pastry contacting the ejector rod. The bottom edges of the pastry are suspended, making it easy for manual or robotic arms to remove the pastry from the bottom edges, preventing deformation.

Claims

1. A rotary cake forming machine, characterized by: The utility model provides a kind of automatic injection molding machine, including base (1), and base (1) is provided with rotary table (11), rotary table (11) is rotated by motor (12) drive, the rotary table (11) is provided with more than three groups of feeding and forming ejection assembly (3), the feeding and forming ejection assembly (3) includes material chamber seat (31), material chamber seat (31) is fixed with rotary table (11) by fastener, pusher rod (32) is provided in material chamber seat (31), recess (33) is opened in pusher rod (32), pusher block (34) is provided in recess (33), the upper end of pusher rod (32) and pusher block (34) and the inner wall of material chamber seat (31) form material chamber (30), material block (13) is placed in material chamber (30), the rotary table (11) is provided with double-end pusher air cylinder (35) below material chamber seat (31), double-end pusher air cylinder (35) is provided with double-end pusher piston rod (36), the upper head of double-end pusher piston rod (36) passes through rotary table (11) and is fixedly connected with pusher rod (32), ejector rod (37) is provided in double-end pusher piston rod (36), the upper head of ejector rod (37) is fixedly connected with pusher block (34), the lower head of ejector rod (37) is driven to go up or fall by ejecting device, the base (1) is provided with fixed column (14), the upper head of fixed column (14) passes through rotary table (11), the fixed column (14) is provided with fixed frame (15) above rotary table (11), fixed frame (15) is provided with mold clamping forming device, and mold clamping forming device is matched with material block (13) on the feeding and forming ejection assembly (3).

2. A rotary cake forming machine as claimed in claim 1, characterized in that: The mold clamping forming device includes double-end mold clamping air cylinder (2), double-end mold clamping air cylinder (2) is fixed with fixed frame (15), the upper head of double-end mold clamping piston rod (21) of double-end mold clamping air cylinder (2) is connected with lock die cylinder (22), the piston rod of lock die cylinder (22) is connected with upper plate (23), lock die rod (24) is provided in upper plate (23), the lower head of lock die rod (24) is provided with lock die seat (25), lock die cavity (26) is opened in lock die seat (25), the lower head of double-end mold clamping piston rod (21) is provided with soft mold (28) made of soft silica gel material, the lower of soft mold (28) is provided with more than two templates (29), the opening and closing device is driven to open or close mold by the template (29), the outer wall of template (29) is matched with lock die cavity (26) of lock die seat (25), and the inner wall of template (29) is matched with material block (13) on the feeding and forming ejection assembly (3).

3. A rotary cake forming machine as claimed in claim 2, characterized in that: The opening and closing device includes jaw seat (291), jaw seat (291) is fixed with the lower head of double-end mold clamping piston rod (21), connecting groove (292) is opened in jaw seat (291), jaw (293) is provided in connecting groove (292), the upper head of jaw (293) is rotatably connected with connecting groove (292) by pin, jaw spring (294) is provided between jaw (293) and connecting groove (292), the lower head of jaw (293) is fixedly connected with the outer wall of template (29), and the inner wall of jaw (293) is matched with the upper end of lock die seat (25).

4. A rotary cake forming machine as claimed in claim 3, characterized in that: The clamping jaw (293) is provided with a threaded hole, and an adjusting screw (295) is arranged in the threaded hole and matched with the upper end of the mold locking base (25).

5. A rotary cake forming machine as claimed in claim 2, characterized in that: The mold locking cylinder (22) is provided with an upper connecting plate (221), and the upper connecting plate (221) is provided with a positioning rod (222) fixed with the upper connecting plate (221) through a fastener. A positioning groove (223) is formed in the outer wall of the positioning rod (222). The double-head mold closing cylinder (2) is provided with a lower connecting plate (224), and the lower connecting plate (224) is provided with a through hole (225). A positioning bead (226) and a third spring (227) are arranged on one side of the lower connecting plate (224) located in the through hole (225), and the positioning bead (226) is matched with the positioning groove (223).

6. A rotary cake forming machine as claimed in claim 1, characterized in that: The mold closing forming device comprises a lifting cylinder (41) fixed with the fixed frame (15), and the piston rod of the lifting cylinder (41) penetrates through the fixed frame (15) to connect the pneumatic finger cylinder (42). The pneumatic finger cylinder (42) is provided with two or more than two pneumatic fingers (43) below, and each pneumatic finger (43) is provided with a hard mold (44) made of hard PE material below. The hard mold (44) is matched with the material block (13) on the material discharging and forming ejection assembly (3).

7. A rotary cake forming machine as claimed in claim 1, characterized in that: The ejection device comprises a spring seat (361) arranged below the double-head pushing piston rod (36), and the lower head of the ejector rod (37) penetrates through the double-head pushing piston rod (36). The outer wall of the ejector rod (37) is provided with a fixing block (371), and the second spring (362) is arranged between the fixing block (371) and the spring seat (361). The fixing column (14) is provided with a guide bracket (141), and the guide bracket (141) is provided with an arc-shaped guide rail (142) inclined upward. The lower head of the ejector rod (37) is matched with the guide rail (142).

8. A rotary cake forming machine according to claim 7, characterised in that: The lower head of the ejector rod (37) is provided with a steel bead (372), and the steel bead (372) is matched with the guide rail (142).

9. A rotary cake forming machine as claimed in claim 1, characterized in that: The rotating disc (11) is provided with an air inlet hole (311), the material chamber seat (31) is provided with an air inlet channel (312), the bottom of the pushing rod (32) is provided with an air passage hole (313), and the pushing rod is uniformly provided with air blowing holes (314). The air inlet hole (311) is communicated with the air inlet channel (312), the air passage hole (313) and the air blowing hole (314).

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