Hand injury preventing dough press
By installing a protective cover and a sensor switch on the dough press, the problem of hand injuries during use has been solved, thus improving safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG YINYING COOKING MACHINERY
- Filing Date
- 2025-05-30
- Publication Date
- 2026-06-02
AI Technical Summary
When using a dough press machine, if the dough is uneven or piled up, it needs to be manually removed, which can easily lead to hand injuries and increase safety hazards.
A protective cover is installed on the dough press machine, equipped with a sensor switch and a material blocking mechanism. When the sensor switch detects a human hand, it controls the drive motor to stop, and the material blocking mechanism blocks the dough from being fed to prevent the hand from being pinched.
It effectively prevents hand injuries from being pinched by the rollers, improves operational safety, and meets the safety requirements for food processing machinery.
Smart Images
Figure CN224306648U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dough press technology, specifically to a dough press machine that prevents hand injuries. Background Technology
[0002] A dough press is a device that uses rollers to press clumps of dough or other materials to achieve the necessary elasticity and moisture, forming dough sheets or noodles. During the use of a dough press, sometimes the dough entering the rollers is uneven or accumulates in large quantities. Excess dough needs to be manually removed to prevent affecting the rolling effect. During this process, workers' hands are easily pinched by the dough press, increasing safety hazards.
[0003] In recent years, with the continuous improvement of food safety standards in my country, users have increasingly higher requirements for the safety of food processing machinery. How to make products safer has become one of the urgent problems that manufacturers need to solve. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a hand-protective noodle press machine. It utilizes an induction switch installed on the protective cover to sense a person's hand and control the drive motor to stop, while coordinating with a material-blocking mechanism to block the dough feeding sieve, thus ensuring the safety of the noodle press machine during use.
[0005] This utility model is achieved through the following technical solution:
[0006] A hand-protective dough press machine is provided, comprising a dough press body driven by a drive motor. A fixed roller and an adjustable roller of the dough press body are rotatably mounted between two grid plates. A dough feeding hopper is obliquely installed at the upper inlet of the fixed roller and the adjustable roller between the two grid plates. A protective cover is installed between the tops of the two grid plates, and an opposite mounting slot is formed between the two sides of the protective cover, with a sensor switch installed within the mounting slot. Support columns are vertically connected to the bottom two side plates of the dough feeding hopper, and support slots are formed opposite each other on the two support columns. A material blocking mechanism that can be linked to the sensor switch is movably installed between the two support slots. The material blocking mechanism includes a material blocking block arranged along the width direction of the dough feeding hopper. Two sliders that can extend into and slide within the support slots are connected to the ends of the material blocking blocks. An electric push rod is fixedly installed on the inner top wall of the support slot, and the movable end of the electric push rod is connected to the sliders at both ends of the material blocking block.
[0007] Furthermore, the material stop block is recessed along the length of the bottom surface of the feed hopper to form an installation groove, and an installation partition is fixed in the installation groove. Through holes are opened at intervals along the length of the installation partition, and a movable rod is inserted into the through holes. A baffle is connected to one end of the movable rod below the installation partition, and a return spring is sleeved between the movable rod and the baffle. A limiting plate is connected to one end of the movable rod above the installation partition, and a contact switch is installed on the inner top surface of the installation groove corresponding to the limiting plate.
[0008] The bottom surface of the baffle block is recessed to form an installation groove, and a baffle is movably installed in the installation groove through the installation partition. By utilizing the contact cooperation between the limit plate and the contact switch, the contact switch can be triggered when the baffle and the feed hopper clamp an object, thereby controlling the electric push rod to stop running and thus preventing the hand from being pinched.
[0009] Furthermore, it also includes a controller, whose input terminals are electrically connected to an inductive switch and a contact switch, respectively, and whose output terminals are electrically connected to a drive motor and an electric actuator, respectively.
[0010] By setting up a controller, the controller can receive signals from the induction switch. When the induction switch detects a person's hand entering the protective cover, it can transmit a signal to the controller and control the drive motor to stop, preventing the rollers from pinching and injuring the hand. At the same time, it controls the movable end of the electric push rod to extend and drive the baffle to move closer to the dough feeding hopper to block the dough and prevent it from continuing to feed, making it convenient to manually sort the dough between the two rollers.
[0011] Furthermore, the bottom of both sides of the protective cover are bent to form bending plates corresponding to the grid plates. Long slots are opened on the bending plates and bolts are used to connect them to the grid plates.
[0012] The two sides of the protective cover are connected to the top of the grid plate through bending plates and long slot through holes, which can ensure the stability of the installation. At the same time, the position of the bolts can be adjusted by using the long slot through holes, which makes it easier to adjust the position of the protective cover on the top of the grid plate.
[0013] Furthermore, the length direction of the installation trough forms a 65° angle with the material feeding direction of the feed hopper.
[0014] The length of the installation trough forms a 65-degree angle with the material feeding direction of the feeding hopper, allowing for easy adjustment of the position of the sensor switch on the installation trough to accurately sense the position of the worker's hand, depending on the different workers.
[0015] The beneficial effects of this utility model are:
[0016] This invention incorporates a protective cover with mounting slots on both sides for installing inductive switches. These switches work together to detect the operator's hand position. The mounting slots also create a safe angle between the switches and the dough feeding hopper. Before a hand enters the rollers, the switches detect the hand and the controller immediately stops the drive motor, preventing injury and ensuring operator safety. Simultaneously, the invention controls the material blocking mechanism, using an electric push rod to lower a baffle plate to block the dough on the feeding hopper, thus preventing material from flowing out and facilitating manual cleaning of accumulated material between the rollers. This structure significantly improves product safety and meets users' safety requirements for food processing machinery. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0018] Figure 2 for Figure 1 The left view.
[0019] Figure 3 This is a schematic diagram of the structure of the protective cover in this utility model.
[0020] Figure 4 This is a schematic diagram of the material blocking mechanism in this utility model.
[0021] Figure 5 This is a schematic diagram of the baffle installation structure.
[0022] As shown in the figure:
[0023] 1. Dough press body; 2. Drive motor; 3. Fixed roller; 4. Adjustable roller; 5. Grid plate; 6. Dough feeder; 7. Protective cover; 8. Mounting slot; 9. Inductive switch; 10. Material blocking mechanism; 11. Bending plate; 12. Through hole in the slot; 13. Support column; 14. Support slot; 15. Material blocking block; 16. Electric push rod; 17. Slider; 18. Baffle plate; 19. Mounting slot; 20. Mounting partition; 21. Movable rod; 22. Limiting plate; 23. Return spring; 24. Contact switch. Detailed Implementation
[0024] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.
[0025] A hand-protective noodle press includes a noodle press body 1 driven by a drive motor. Fixed rollers 3 and adjustable rollers 4 of the noodle press body are rotatably mounted between two grid plates 5. A noodle inlet hopper 6 is obliquely installed at the upper entrance of the fixed rollers 3 and adjustable rollers 4 between the two grid plates 5. A protective cover 7 is installed between the tops of the two grid plates 5, and mounting slots 8 are respectively formed on both sides of the protective cover 7. Induction switches 9 are installed within the mounting slots 8. The two induction switches 9 can be selected as through-beam photoelectric induction switches. By mounting the induction switches 9 on the mounting slots 8, the induction switches 9 are positioned at a certain safe angle with the noodle inlet hopper 6. Before a hand enters the rollers, the induction switches 9 sense the hand, and the controller can immediately stop the drive motor 2 to prevent injury to the operator's hand, ensuring the operator's personal safety and greatly improving product safety.
[0026] The bottom of both sides of the protective cover 7 are bent to form bent plates 11 corresponding to the grid 5. The bent plates 11 are respectively provided with long slot through holes 12 and are connected to the grid 5 by bolts in the long slot through holes 12. The length direction of the long slot 8 is at a 65° angle to the feeding direction of the feed hopper 6.
[0027] Support columns 13 are vertically connected to the bottom two side plates of the feeding hopper 6. Support grooves 14 are opened on opposite sides of the two support columns 13. A material blocking mechanism 10 that can be linked with the induction switch 9 is movably installed between the two support grooves 14. The material blocking mechanism 10 includes a material blocking block 15 arranged along the width direction of the feeding hopper 6. The two ends of the material blocking block 15 are respectively connected to sliders 17 that can extend into the support grooves 14 and slide in connection with the support grooves 14. An electric push rod 16 is fixedly installed on the inner top wall of the support groove 14. The movable end of the electric push rod 16 is connected to the sliders 17 at both ends of the material blocking block 15.
[0028] The material blocking block 15 is recessed along the length of the bottom surface of the feed hopper 6 to form an installation groove 19, and an installation partition 20 is fixed in the installation groove 19. The installation partition 20 has through holes at intervals along its length, and a movable rod 21 is inserted into the through holes. A baffle 18 is connected to one end of the movable rod 21 below the installation partition 20, and a return spring 23 is sleeved between the movable rod 21 and the baffle 18. A limiting plate 22 is connected to one end of the movable rod 21 above the installation partition 20. A contact switch 24 is installed on the inner top surface of the installation groove 19 corresponding to the limiting plate 22.
[0029] A hand-safe dough press machine also includes a controller. The input terminals of the controller are electrically connected to an inductive switch 9 and a contact switch 24, respectively, and the output terminals of the controller are electrically connected to a drive motor 2 and an electric push rod 16, respectively. In this embodiment, a PLC controller can be selected as the controller. By electrically connecting the inductive switch 9, contact switch 24, drive motor 2, and electric push rod 16 to the PLC controller through a control circuit, the PLC controller can coordinate with each other to ensure the safe use of the dough press machine.
[0030] The working process of this utility model:
[0031] When the dough press machine body 1 is in use, if material accumulates between the rollers, it needs to be manually cleaned. In this case, the operator can extend their hand from the protective cover 7 and the grid plate 5 on the upper part of the dough press machine body 1 into the space between the rollers. When the hand passes through the protective cover 7, the inductive switch 9 receives a signal. The inductive switch 9 then transmits the signal to the controller, which controls the drive motor 2 to stop running, thus stopping the fixed roller 3 and the adjustable roller 4, effectively protecting the hand. Simultaneously, the controller controls the movable end of the electric push rod 16 to extend, causing the electric push rod 16 to move the material stop block 15 and the baffle plate 18 downwards, guiding them towards the dough feeding hopper. The surface of 6 is close to the dough in the feed hopper 6 to prevent the dough from entering between the rollers, thus achieving the purpose of cutting off and blocking the material. When the hand is under the baffle, the return spring 23 will be compressed and drive the baffle 18 to retract into the mounting groove 19, thereby buffering the clamping force. When the baffle 18 retracts excessively into the mounting groove 19, it will drive the limit plate 22 to move and contact the contact switch 24, triggering a signal to the controller. The controller controls the electric push rod 16 to stop running, avoiding the problem of the baffle 18 pinching the operator's fingers. It may also play the role of blocking the material, without affecting the blocking effect of the baffle 18 on the feed hopper 6.
[0032] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.
Claims
1. A hand-protective dough press machine, comprising a dough press body driven by a drive motor, wherein a fixed roller and an adjustable roller of the dough press body are rotatably mounted between two grid plates, and a dough feeding sieve is obliquely installed between the two grid plates at the upper inlet of the fixed roller and the adjustable roller, characterized in that: A protective cover is installed between the tops of the two grid plates, and an installation slot is opened between the two sides of the protective cover. An inductive switch is installed in the installation slot. Support columns are vertically connected to the bottom two side plates of the feed hopper. Support slots are opened between the two support columns. A material blocking mechanism that can be linked with the inductive switch is movably installed between the two support slots. The material blocking mechanism includes a material blocking block arranged along the width direction of the feed hopper. The two ends of the material blocking block are respectively connected to sliders that can extend into the support slots and slide in connection with the support slots. An electric push rod is fixedly installed on the inner top wall of the support slot. The movable end of the electric push rod is connected to the sliders at both ends of the material blocking block.
2. The anti-injury hand-pressed dough machine according to claim 1, characterized in that: The material blocking block has a recessed mounting groove along the length of the bottom surface of the feed hopper, and a mounting partition is fixed in the mounting groove. The mounting partition has through holes at intervals along its length, and a movable rod is inserted into the through holes. A baffle is connected to one end of the movable rod below the mounting partition, and a return spring is sleeved between the movable rod and the baffle. A limiting plate is connected to one end of the movable rod above the mounting partition. Contact switches are installed on the inner top surface of the mounting groove corresponding to the limiting plates.
3. The anti-injury hand-pressing noodle machine according to claim 2, characterized in that: It also includes a controller, whose input terminals are electrically connected to an inductive switch and a contact switch, and whose output terminals are electrically connected to a drive motor and an electric actuator.
4. The anti-injury hand-pressed dough machine according to claim 1, characterized in that: The bottom of both sides of the protective cover is bent to form a corresponding grid plate. The bending plate has a long slot through hole and is connected to the grid plate by bolts in the long slot through hole.
5. The anti-injury hand-pressed dough machine according to claim 1, characterized in that: The length of the installation trough forms a 65° angle with the material feeding direction of the feed hopper.