Automatic mold opening mechanism
By designing an automatic mold opening mechanism, the problem of mold separation was solved, the stability and continuity of the automated food processing production line were improved, and efficient mold separation and simplified integration were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN ZHENZHU PRECISION INTELLIGENT EQUIPMENT CO LTD
- Filing Date
- 2026-03-16
- Publication Date
- 2026-06-12
AI Technical Summary
In the food processing industry, existing technologies struggle to separate molds efficiently and reliably, impacting the continuity and stability of automated production lines.
An automatic mold opening mechanism was designed, including a bearing mechanism and a gripping mechanism. By utilizing a positioning mechanism, a lower mold clamping mechanism, and a gripping execution unit, the mold is ensured to separate stably in an automated production line.
It achieves efficient and reliable mold separation, simplifies production line integration, improves automation level and continuity, and ensures production stability and efficiency.
Smart Images

Figure CN224344200U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automated production, specifically to an automatic mold opening mechanism. Background Technology
[0002] In the food processing industry, the production of products such as pastries and candies often requires the use of molds to press and shape materials. The molds typically consist of an upper mold and a lower mold. After pressing and shaping, the upper and lower molds need to be separated efficiently and reliably; this process is called mold opening. Mold opening is a crucial step in the production cycle, its purpose being to remove the shaped product and prepare for the filling operation in the next cycle.
[0003] With the continuous improvement of industrial automation, food production lines have generally achieved continuous and automated operation. This requires the mold-making process to be integrated into the automated production line to meet the needs of continuous, stable, and efficient operation. Utility Model Content
[0004] The purpose of this invention is to address the above problems by providing an automatic mold opening mechanism that can be easily integrated into automated production lines.
[0005] To achieve the above objectives, the present invention employs an automatic mold-opening mechanism, comprising a supporting mechanism and a gripping mechanism. The supporting mechanism includes a frame with an open upper surface, a positioning mechanism located in the middle of the frame, and a lower mold clamping mechanism mounted on the frame. The gripping mechanism includes a vertically moving lifting section, on which a gripping execution unit for gripping the upper mold is mounted. The open design of the upper surface of the frame provides convenient space for mold input and output, allowing the mechanism to be easily integrated into existing automated production lines as a standardized mold-opening station. The lower mold clamping mechanism secures the mold in its closed state to the frame. During mold opening, the gripping execution unit first firmly grips the upper mold, and then the lifting section rises vertically, smoothly separating the upper and lower molds.
[0006] Furthermore, the positioning mechanism includes positioning protrusions adapted to the positioning grooves on the lower surface of the lower mold, with at least two positioning protrusions, and these positioning protrusions are movable vertically. This constrains the mold in the horizontal direction.
[0007] Furthermore, to ensure that the lower mold does not follow the upper mold vertically during mold opening, the lower mold clamping mechanism includes a clamping part that rotates along the vertical axis under the drive of the rotary drive mechanism. When it is necessary to move the mold in or out, the rotary drive mechanism can drive the clamping part to avoid the mold's movement path, providing sufficient space for automated mold conveying and facilitating the integration of this mechanism into an automated production line.
[0008] Furthermore, the grasping execution unit includes a grasping part and a grasping drive mechanism for driving the grasping part to move. By driving the grasping part to move through an independent grasping drive mechanism, active control of grasping and releasing is achieved.
[0009] Furthermore, to determine the movement of the lifting part, the lifting part is fixedly connected to the output end of the lifting drive mechanism, which is mounted on the support.
[0010] Furthermore, the support is slidably mounted on the guide rail of the crossbeam. This sliding arrangement of the support allows the mechanism to serve multiple parallel mold-opening stations, or facilitates the placement of the opened upper mold at a transfer or storage station.
[0011] Furthermore, to facilitate the delivery of the mold to the mold opening station of the machine frame, a conveying mechanism is provided on the upper surface of the machine frame, and guide portions are provided on both sides of the upper surface of the machine frame in the conveying direction of the conveying mechanism. The ends of the guide portions are provided with opening sections extending outward to the horizontal plane.
[0012] Furthermore, a limit mechanism is installed on the transmission path of the conveying mechanism. This limit mechanism provides a reference point for the mold's stopping point on the conveying path, ensuring that the mold is accurately and repeatedly conveyed to the designated position on the frame each time. This creates the prerequisites for subsequent positioning and mold clamping, guaranteeing the reliability of the mold opening operation.
[0013] The beneficial effects of this utility model are as follows: The upper surface of the frame adopts an open design, providing unobstructed space for the automatic input and output of molds, facilitating integration into existing automated production lines, simplifying production line integration, and improving the automation level and continuity of the entire line. The lower mold clamping mechanism firmly fixes the mold in the closed state to the frame, ensuring that the lower mold will not move during the mold opening process, thus ensuring the normal operation of the mold opening. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0015] Figure 2 for Figure 1 A magnified schematic diagram of the structure at point A.
[0016] Figure 3 This is a three-dimensional structural diagram of the mold input side.
[0017] Figure 4 This is a side view of the mold input side structure.
[0018] Figure 5 This is a schematic diagram of the three-dimensional structure of the frame.
[0019] Figure 6This is a top view of the frame structure.
[0020] Figure 7 This is a schematic diagram of the lower surface structure of the lifting unit.
[0021] Figure 8 This is a schematic diagram of the mold structure in the open state.
[0022] The text labels in the figure represent: 1. Frame; 2. Lifting part; 3. Positioning protrusion; 4. Clamping part; 5. Rotary drive mechanism; 6. Gripping part; 7. Gripping drive mechanism; 8. Lifting drive mechanism; 9. Support; 10. Crossbeam; 11. Conveying mechanism; 12. Guide part; 13. Opening section; 14. Limiting mechanism; 15. Mold; 151. Groove; 152. Extension part. Detailed Implementation
[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.
[0024] Example 1, as Figures 1 to 7 As shown, this embodiment provides an automatic mold opening mechanism, including a supporting mechanism and a gripping mechanism. This mechanism can be used for... Figure 8 The mold 15 shown is opened. The upper mold side wall of the mold 15 is provided with a groove 151 that cooperates with the gripping mechanism, and the lower mold side wall of the mold 15 is provided with an extension 152 that cooperates with the lower mold clamping mechanism.
[0025] The supporting mechanism includes a frame 1 with an open upper surface. A lifting drive device is provided in the middle of the frame 1. The lifting drive device can be a hydraulic cylinder, an electric push rod, etc. The piston rod of the lifting drive device is fixedly connected to the lower surface of the positioning mechanism provided in the middle of the frame 1, so that the positioning protrusion 3 can be pushed to move vertically by the lifting drive device. The positioning mechanism includes a positioning protrusion 3 that matches the positioning groove on the lower surface of the lower mold. The upper side wall of the positioning protrusion 3 is provided with a chamfer or rounded corner. The positioning protrusion 3 can be a cylindrical pin. There are at least two positioning protrusions 3. The position of the mold 15 can be detected by setting photoelectric sensors, proximity switches, etc. on the moving path of the mold 15.
[0026] A lower mold clamping mechanism is provided on the upper surface of the frame 1. In this embodiment, the lower mold clamping mechanism includes multiple clamping parts 4. These clamping parts 4 form a clamping group in pairs, and the two clamping parts 4 in the same clamping group are placed on both sides of the lower mold moving path of the mold 15. Multiple clamping groups can be arranged at intervals along the lower mold moving path; in this embodiment, two clamping groups are provided, so that the four clamping parts 4 are located at the four corners of the lower mold respectively.
[0027] The clamping part 4 can be driven to move laterally by a lateral drive mechanism or vertically by a vertical drive mechanism. In this embodiment, one end of the clamping part 4 is connected to the piston rod of the rotary drive mechanism 5, so that the clamping part 4 can rotate around the vertical axis under the drive of the rotary drive mechanism 5. The rotary drive mechanism 5 can be a cylinder, a motor, etc. During the movement of the lower mold, the clamping part 4 and its drive mechanism both avoid the movement path of the lower mold. When mold opening is required, the lower surface of the clamping part 4 moves above the extension 152, thereby fixing the lower mold to the upper surface of the frame 1.
[0028] The gripping mechanism includes a vertically moving lifting part 2, which is fixedly connected to the output end of a lifting drive mechanism 8. The lifting drive mechanism 8 can be a hydraulic cylinder, an electric push rod, etc. The cylinder body of the lifting drive mechanism 8 is mounted on a support 9. A guide column is provided on the lifting part 2, and the guide column is adapted to the guide sleeve on the support 9. The support 9 is slidably mounted on the guide rail of the crossbeam 10. The crossbeam 10 is located above the frame 1, and both ends of the crossbeam 10 are fixed to the ground or equipment base by pillars. The sliding of the support 9 can be driven by another drive system, such as through a linear mold, a lead screw driven by a motor, etc., or the crossbeam 10 can be equipped with a rack, and the support 9 can be equipped with a motor, with a gear meshing with the rack on the output shaft of the motor.
[0029] The lower surface of the lifting part 2 is provided with a gripping execution unit for gripping the upper mold. The gripping execution unit can be an electromagnet or the like. In this embodiment, the gripping execution unit includes a gripping part 6 and a gripping drive mechanism 7 for driving the gripping part to move. At least two gripping parts 6 are provided and are placed on both sides of the mold 15. In this embodiment, the gripping drive mechanism 7 can be a hydraulic cylinder, an electric push rod, or the like. The piston rod of the gripping drive mechanism 7 moves laterally, so that the gripping part 6 can be engaged in the groove 151.
[0030] The upper surface of the frame 1 is provided with a conveying mechanism 11. The conveying mechanism 11 can be an existing linear conveying mechanism such as a belt conveyor or a chain conveyor. The upper surface of the frame 1 is provided with guide portions 12 on both sides of the conveying direction of the conveying mechanism 11. The guide portions 12 can be long strip-shaped guide plates. The end of the guide portion 12 is provided with an outwardly extending opening section 13. The opening section 13 is flared to facilitate the centering of the mold. Figure 6 The middle arrow indicates the direction of mold movement. At the end of the conveying mechanism 11, i.e., at the predetermined mold opening station, a limiting mechanism 14 is provided. The limiting mechanism 14 is a liftable stop; in this embodiment, the limiting mechanism 14 is a blocking cylinder. The limiting mechanism 14 is used to block the mold 15, stopping it at the designated position.
[0031] Specific working process: The mold in the closed state is pushed onto the conveyor mechanism 11 by upstream equipment or manually. The conveyor mechanism 11 is started, transporting the mold to the middle of the frame 1. Under the guidance of the guide section 12 and the opening section 13, the mold is automatically corrected to the center of the conveying path.
[0032] The mold continues to advance until its end contacts the limiting mechanism 14. At this point, the mold is precisely limited to the mold opening position, and the conveying mechanism 11 stops working. Then, the positioning protrusion 3 moves upward and precisely inserts into the positioning groove at the bottom of the lower mold, completing the precise positioning of the lower mold in the horizontal plane. Subsequently, the rotation drive mechanisms of the lower mold clamping mechanisms on both sides operate simultaneously, driving the clamping part 4 to rotate inward to a horizontal position, tightly abutting against the upper surface of the lower mold extension 152, and firmly clamping and fixing the lower mold on the frame 1.
[0033] After mold 15 is fixed, the gripping mechanism slides to a position directly above the mold. The lifting drive mechanism 8 drives the lifting part 2 to descend, bringing the gripping part 6 to the groove 151. The gripping drive mechanism 7 drives the gripping part 6 towards the mold, causing it to engage with the groove 151, with its upper surface abutting against the top wall of the groove 151. Once the gripping is confirmed to be secure, the lifting drive mechanism 8 drives the lifting part 2 to move vertically upwards to complete the mold opening action.
[0034] After mold opening, the gripping mechanism lifts the upper mold to a predetermined height. Then, the support 9 slides along the crossbeam 10, transferring the upper mold to a transfer table or storage rack on one side. Afterward, the rotation drive mechanism 5 of the lower mold clamping mechanism rotates in the opposite direction, driving the clamping part 4 to rotate away from the lower mold to release it. The positioning protrusion 3 and the limiting mechanism 14 then descend and reset. The conveying mechanism 11 restarts, removing the lower mold from the frame 1 and conveying it to the subsequent production line.
[0035] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0036] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.
Claims
1. An automatic mold opening mechanism, characterized in that, The device includes a support mechanism and a gripping mechanism. The support mechanism includes a frame (1) with an open upper surface to allow the mold to enter and exit. A positioning mechanism is provided in the middle of the frame (1). The positioning mechanism includes a positioning protrusion (3) that is adapted to the positioning groove on the lower surface of the mold. There are at least two positioning protrusions (3). The positioning protrusions (3) move vertically and are inserted into the positioning groove to achieve horizontal positioning of the lower mold. A lower mold clamping mechanism is provided on the frame (1). The lower mold clamping mechanism includes a clamping part (4). The clamping part (4) rotates along the vertical axis under the drive of the rotary drive mechanism (5). When the clamping part (4) moves to abut against the upper surface of the lower mold extension (152), the clamping part (4) can fix the lower mold on the frame (1). The gripping mechanism includes a lifting part (2) that moves vertically. A gripping execution unit for gripping the upper mold is provided on the lifting part (2).
2. The automatic mold opening mechanism according to claim 1, characterized in that, The gripping execution unit includes a gripping part (6) and a gripping drive mechanism (7) for driving the gripping part to move.
3. The automatic mold opening mechanism according to claim 1, characterized in that, The lifting part (2) is fixedly connected to the output end of the lifting drive mechanism (8), and the lifting drive mechanism (8) is installed on the support (9).
4. The automatic mold opening mechanism according to claim 3, characterized in that, The support (9) is slidably mounted on the guide rail of the crossbeam (10).
5. An automatic mold opening mechanism according to claim 1, characterized in that, The upper surface of the frame (1) is provided with a conveying mechanism (11), and the upper surface of the frame (1) is provided with long strip-shaped guides (12) on both sides of the conveying direction of the conveying mechanism (11), and the end of the guides (12) is provided with an outwardly extending opening section (13).
6. An automatic mold opening mechanism according to claim 5, characterized in that, A limiting mechanism (14) is provided on the transmission path of the conveying mechanism (11) to precisely limit the mold (15) at the preset mold opening position.