A combined blister mold

Abstract

The utility model belongs to blister mold technical field, and disclose a kind of combined blister mold, including multiple groups of female die of array distribution, multiple groups of demolding execution mechanism and demolding mechanism support, demolding mechanism movement component and driving assembly;Demolding mechanism support is fixed with the female die above by support rod, and stable support is provided for overall motion system;Demolding mechanism movement component is composed of movement plate and movement guide rail, and movement guide rail is fixedly connected with support, and movement plate is slidably connected with guide rail and is connected with demolding execution mechanism.Driving assembly is driven screw rod operation by servo motor, and the transmission of cooperating screw rod movement block and guide connecting piece, drive movement plate precision movement, so that demolding execution mechanism reaches target female die above and carries out demolding operation;The mold effectively avoids that driving part bears excessive load, improves motion precision and operating stability, prolongs equipment service life, and practicality is strong.

Description

Technical Field

[0001] This utility model relates to the field of vacuum forming mold technology, specifically a combined vacuum forming mold. Background Technology

[0002] In the field of vacuum forming, modular molds have become key equipment for mass production due to their ability to improve production efficiency through simultaneous operation of multiple cavities. However, existing modular vacuum forming molds still have room for optimization in terms of structural design and operational stability, especially in terms of the drive and load-bearing balance of the demolding mechanism, which often faces problems such as rapid component wear and short service life.

[0003] For example, Chinese utility model patent CN216300139U discloses a combined vacuum forming mold, including several concave molds with the same or different forming cavities. These concave molds are arranged in an array and fixedly connected in pairs. The concave molds are fixed to a base, the base having cavities communicating with small holes inside each concave mold. One side of the base has a vacuum port and an air inlet communicating with the cavities. A demolding mechanism capable of moving back and forth and lifting is provided above the concave molds. This utility model combines several concave molds together, improving production efficiency. Furthermore, by fixing the concave molds to the same base and using the same vacuum port and air inlet for vacuum adsorption and air cooling respectively, resources are saved and utilization is improved. In addition, the demolding mechanism is independent of the mold body and can move back and forth and lift, without adversely affecting the normal vacuum forming process, ensuring that the formed product can be demolded normally. This patent separates the demolding mechanism from the mold body, allowing it to move back and forth and rise and fall, thus avoiding interference with the vacuum forming process and ensuring smooth demolding.

[0004] However, this device has obvious limitations in practical applications: the movement and lifting of its demolding mechanism largely rely on lead screw transmission, and the lead screw directly bears the weight of the upper component. Under the dual load of load-bearing and transmission for a long time, it is prone to deformation or wear due to stress concentration. This not only affects the motion accuracy but also significantly shortens the service life of the equipment and increases maintenance costs, making it difficult to meet the needs of high-frequency and long-term production. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a combined vacuum forming mold to solve the problems mentioned in the background art, such as easy wear and short service life of existing devices.

[0006] To achieve the aforementioned objectives, this utility model provides the following technical solution: a combined vacuum forming mold, comprising multiple arrayed sets of concave molds and multiple sets of demolding actuators, and further comprising: The demolding mechanism support includes multiple sets of support rods and multiple sets of structural blocks. The structural blocks are fixedly mounted above the multiple sets of concave molds via the support rods. The demolding mechanism motion assembly is mounted directly above multiple sets of cavities via a demolding mechanism bracket. The demolding mechanism motion assembly includes multiple sets of motion plates and multiple sets of motion guide rails. The motion guide rails are fixedly connected to the demolding mechanism bracket, and the motion plates are slidably engaged with the motion guide rails. Each set of motion plates is fixedly connected to a demolding execution mechanism. A drive assembly for driving the motion plates is also mounted above the demolding mechanism motion assembly.

[0007] Preferably, the motion guide rail is horizontally arranged, and both ends of the motion guide rail are fixed perpendicularly to the structural block.

[0008] Preferably, the side of the motion guide rail is provided with a horizontal guide groove, and one side of the motion plate is slidably engaged in the guide groove.

[0009] Preferably, the motion guide rail includes two sets of side guide rails and a middle guide rail. A set of guide grooves is provided on the side guide rails, and guide grooves are provided on both sides of the middle guide rail. A set of motion plates is slidably engaged in the two sets of opposing guide grooves.

[0010] Preferably, the guide groove is provided with a ball groove, and multiple sets of balls are provided in the ball groove. The side of the moving plate is provided with a ball mating protrusion, and the ball mating protrusion slides in contact with the multiple sets of balls.

[0011] Preferably, the drive assembly includes a lead screw, a lead screw moving block, and a servo motor. The lead screw is positioned directly above the side guide rail. The lead screw moving block is threadedly connected to the lead screw. The servo motor is fixedly mounted on the structural block, and the output end of the servo motor is coaxially connected to the lead screw.

[0012] Preferably, the structural block is provided with a guide member, and the structural block is connected to the lead screw moving block through the guide member. The side guide rail is provided with a guide limiting groove corresponding to the guide member, and the guide member is slidably engaged in the guide limiting groove.

[0013] Compared with the prior art, this utility model provides a combined vacuum forming mold, which has the following beneficial effects: This modular vacuum forming mold is equipped with multiple sets of concave molds, multiple sets of demolding actuators, a demolding mechanism support, a demolding mechanism motion component, and a drive component. It enables the demolding actuator to move above the corresponding concave mold for vacuum forming demolding. The entire process is smooth, and the ball bearings change the surface contact to point contact, greatly reducing friction and wear. Furthermore, the drive component is located above the support and does not need to bear a large weight, avoiding damage from excessive load. The device has high motion precision, long service life, and strong practicality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of this utility model; Figure 3 This is a schematic diagram of the drive component structure of this utility model; Figure 4 This is a schematic diagram of the motion guide rail and motion plate structure of this utility model.

[0015] In the diagram: 1. Demolding mechanism bracket; 2. Support rod; 3. Structural block; 4. Demolding mechanism motion component; 5. Motion plate; 6. Motion guide rail; 7. Guide groove; 8. Side guide rail; 9. Middle guide rail; 10. Ball groove; 11. Ball; 12. Ball mating flange; 13. Lead screw; 14. Lead screw motion block; 15. Servo motor; 16. Guide component; 17. Guide limit groove. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-4 This utility model provides a technical solution: A combined vacuum forming mold includes multiple arrayed sets of concave molds and multiple sets of demolding actuators, and further includes: The demolding mechanism support 1 includes multiple sets of support rods 2 and multiple sets of structural blocks 3. The structural blocks 3 are fixedly installed above the multiple sets of concave molds through the support rods 2. The demolding mechanism motion component 4 is set directly above multiple sets of concave molds via the demolding mechanism bracket 1. The demolding mechanism motion component 4 includes multiple sets of motion plates 5 and multiple sets of motion guide rails 6. The motion guide rails 6 are fixedly connected to the demolding mechanism bracket 1, and the motion plates 5 are slidably engaged with the motion guide rails 6. Each set of motion plates 5 is fixedly connected to a demolding execution mechanism. A drive component for driving the motion plates 5 is also set above the demolding mechanism motion component 4.

[0018] Furthermore, the motion guide rail 6 is set horizontally, and both ends of the motion guide rail 6 are fixed perpendicularly to the structural block 3.

[0019] Furthermore, the side of the motion guide rail 6 is provided with a horizontal guide groove 7, and one side of the motion plate 5 is slidably engaged in the guide groove 7.

[0020] Furthermore, the motion guide rail 6 includes two sets of side guide rails 8 and a middle guide rail 9. Each side guide rail 8 has a set of guide grooves 7, and both sides of the middle guide rail 9 have guide grooves 7. A set of motion plates 5 are slidably engaged within the two sets of opposing guide grooves 7. The motion plates 5 can move along the guide grooves 7, thereby driving the demolding actuator to move. When the demolding actuator moves to directly above the corresponding mold, it can perform demolding operations on the lower thermoformed part.

[0021] Furthermore, a ball groove 10 is provided within the guide groove 7, and multiple sets of balls 11 are provided within the ball groove 10. A ball-fitting flange 12 is provided on the side of the moving plate 5, and the ball-fitting flange 12 slides in contact with the multiple sets of balls 11. The balls 11 can change the surface contact into point contact, greatly reducing the contact area and thus reducing the motion friction.

[0022] Furthermore, the drive assembly includes a lead screw 13, a lead screw moving block 14, and a servo motor 15. The lead screw 13 is positioned directly above the side guide rail 8. The lead screw moving block 14 is threadedly connected to the lead screw 13. The servo motor 15 is fixedly mounted on the structural block 3, and the output end of the servo motor 15 is coaxially connected to the lead screw 13.

[0023] Furthermore, a guide member 16 is provided on the structural block 3. The structural block 3 is connected to the lead screw moving block 14 through the guide member 16. A guide limiting groove 17 corresponding to the guide member 16 is provided on the side guide rail 8. The guide member 16 is slidably engaged in the guide limiting groove 17. The guide limiting groove 17 can limit the movement direction of the guide member 16 and the lead screw moving block 14, preventing the lead screw moving block 14 from rotating around the lead screw 13. The rotation of the lead screw 13 will drive the lead screw moving block 14 to move linearly, thereby driving the guide member 16 and the structural block 3 to move linearly, which can drive the demolding actuator to move to the point where demolding is required.

[0024] Structural Description: Demolding mechanism bracket 1: A support structure composed of multiple sets of support rods 2 and multiple sets of structural blocks 3, which is fixed above the cavity mold by the support rods 2, and provides installation support for components such as the demolding mechanism motion assembly 4; Support rod 2: Used to connect the structural block 3 to the connecting support component above the die, so as to realize the fixed installation of the structural block 3; Structural block 3: It is fixed by support rod 2, vertically fixed motion guide rail 6, and also has servo motor 15 and guide connector 16 as a connection and installation carrier; The demolding mechanism motion component 4 includes multiple sets of motion plates 5 and multiple sets of motion guide rails 6, which are located directly above the cavity mold via the demolding mechanism bracket 1. A drive component is provided above it and is connected to the demolding execution mechanism. Motion plate 5: It is slidably engaged with motion guide rail 6 and fixed to a set of demolding actuators. It has a ball bearing flange 12 on the side, which can drive the demolding actuators to move. Motion guide rail 6: It is horizontally set and its two ends are fixed vertically to the structural block 3. It includes side guide rail 8 and middle guide rail 9. The side is provided with guide groove 7 to provide sliding guidance for motion plate 5. Guide groove 7: A horizontally opened side of the motion guide rail 6, with a ball groove 10 inside, which is a guide structure for the motion plate 5 to slide and engage. Side rail 8: A component of motion rail 6, with a guide groove 7 on one side, a threaded screw 13 on the top, and a guide limiting groove 17. Middle guide rail 9: A component of motion guide rail 6, with guide grooves 7 on both sides, which cooperate with the guide grooves 7 of side guide rail 8 to allow motion plate 5 to be engaged. Ball groove 10: A groove-shaped structure formed in the guide groove 7 to accommodate multiple sets of balls 11; Ball 11: Installed in the ball groove 10, it slides in contact with the ball mating protrusion 12 of the moving plate 5, converting the surface contact into point contact to reduce friction. Ball-fitting flange 12: Located on the side of the motion plate 5, it slides in contact with multiple sets of balls 11 to achieve low-friction sliding of the motion plate 5; Threaded screw 13: Located directly above the side guide rail 8, it is threadedly connected to the screw moving block 14, and one end is coaxially connected to the output end of the servo motor 15 to transmit power; Lead screw motion block 14: threadedly connected to lead screw 13, and driven by structural block 3 through guide 16, converting rotary motion into linear motion; Servo motor 15: Fixed on structural block 3, its output end is coaxially connected to the lead screw 13 to provide power for the rotation of the lead screw 13; Guide component 16: It is located on the structural block 3, is connected to the lead screw moving block 14 for transmission and is slidably engaged in the guide limiting groove 17 to transmit linear motion; Guide limiting groove 17: It is formed on the side guide rail 8, corresponding to the guide member 16, so that the guide member 16 can slide and engage, limiting its movement direction.

[0025] Working principle: During operation, multiple sets of concave mold arrays are distributed at the bottom, serving as the basic carrier for vacuum forming. The demolding actuator is suspended above the concave mold via the demolding mechanism motion component 4 and the demolding mechanism support 1, forming a corresponding upper and lower layout. The demolding mechanism support 1 uses multiple support rods 2 to fix the structural block 3 above the concave mold, providing stable support for the entire motion system. The demolding mechanism motion component 4 relies on the sliding cooperation between the motion guide rail 6 and the motion plate 5 to achieve precise displacement of the demolding actuator. The motion guide rail 6 is horizontally fixed at both ends of the structural block 3, and its side guide groove 7 provides horizontal guidance for the motion plate 5. Each set of motion plates 5 is rigidly connected to a set of demolding actuators. When the motion plate 5 slides along the guide groove 7, it can drive the demolding actuator to move synchronously to the top of the target concave mold.

[0026] Multiple sets of balls 11 are installed in the ball groove 10 within the guide groove 7. The balls on the side of the motion plate 5 form point contact with the ball 11 through the protruding edge 12, transforming the traditional surface contact into dispersed point contact, significantly reducing the coefficient of friction, making the motion plate 5 slide more smoothly, and reducing component wear. The motion guide rail 6 adopts a combination design of side guide rail 8 and middle guide rail 9: the side guide rail 8 has a guide groove 7 on one side, and the middle guide rail 9 has guide grooves 7 on both sides. The two sets of opposing guide grooves 7 jointly engage a set of motion plates 5. This structure not only improves the utilization rate of the guide rail, but also enhances the running stability of the motion plate 5 through double-sided limiting.

[0027] The drive assembly provides power to the motion system. A servo motor 15, fixed to the structural block 3, has its output end coaxially connected to the lead screw 13 located directly above the side guide rail 8. The lead screw moving block 14 engages with the lead screw 13. When the servo motor 15 starts, the lead screw 13 rotates, driving the lead screw moving block 14 to move linearly along the lead screw axis under the action of threaded transmission. Simultaneously, the guide member 16 on the structural block 3 is connected to the lead screw moving block 14, and the guide member 16 is slidably engaged in the guide limiting groove 17 of the side guide rail 8. The guide limiting groove 17 restricts the rotational freedom of the guide member 16, ensuring that the lead screw moving block 14 only performs linear motion and does not rotate with the lead screw.

[0028] The linear motion of the lead screw moving block 14 is transmitted to the structural block 3 via the guide 16, which in turn drives the moving plate 5 on the motion guide rail 6 to move synchronously, ultimately achieving precise positioning of the demolding actuator. When the demolding actuator moves directly above the corresponding die, the demolding operation can be started; after the operation is completed, the drive component runs in reverse, driving the demolding actuator to reset or move to the next target die, and so on, completing the continuous demolding operation of multiple sets of dies. Throughout the process, the threaded lead screw 13 of the drive component only bears the transmission load, while the weight of the demolding actuator and the moving component is transmitted to the support rod 2 through the motion guide rail 6 and the demolding mechanism bracket 1, avoiding overload of the lead screw. Combined with the low-friction design of the ball bearing 11, the operating accuracy and service life of the device are effectively guaranteed.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A combined thermoforming mold, comprising multiple sets of cavity molds arranged in an array and multiple sets of demolding actuators, characterized in that, Also includes: The demolding mechanism support (1) includes multiple sets of support rods (2) and multiple sets of structural blocks (3). The structural blocks (3) are fixedly installed above the multiple sets of concave molds by the support rods (2). The demolding mechanism motion assembly (4) is set above multiple sets of concave molds via the demolding mechanism bracket (1). The demolding mechanism motion assembly (4) includes multiple sets of motion plates (5) and multiple sets of motion guide rails (6). The motion guide rails (6) are fixedly connected to the demolding mechanism bracket (1). The motion plates (5) are slidably engaged with the motion guide rails (6). Each set of motion plates (5) is fixedly connected to a set of demolding execution mechanisms. A drive assembly for driving the motion plates (5) is also provided above the demolding mechanism motion assembly (4).

2. The combined vacuum forming mold according to claim 1, characterized in that, The motion guide rail (6) is set horizontally, and both ends of the motion guide rail (6) are fixed vertically to the structural block (3).

3. The combined vacuum forming mold according to claim 2, characterized in that, The side of the motion guide rail (6) is provided with a horizontal guide groove (7), and one side of the motion plate (5) is slidably engaged in the guide groove (7).

4. A combined vacuum forming mold according to claim 3, characterized in that, The motion guide rail (6) includes two sets of side guide rails (8) and a middle guide rail (9). A set of guide grooves (7) is provided on the side guide rails (8), and guide grooves (7) are provided on both sides of the middle guide rail (9). A set of motion plates (5) are slidably engaged in the two sets of opposite guide grooves (7).

5. A combined vacuum forming mold according to claim 4, characterized in that, The guide groove (7) is provided with a ball groove (10), and multiple sets of balls (11) are provided in the ball groove (10). The side of the motion plate (5) is provided with a ball mating flange (12), and the ball mating flange (12) slides in contact with the multiple sets of balls (11).

6. A combined vacuum forming mold according to claim 4, characterized in that, The drive assembly includes a lead screw (13), a lead screw moving block (14), and a servo motor (15). The lead screw (13) is located directly above the side guide rail (8). The lead screw moving block (14) is threadedly connected to the lead screw (13). The servo motor (15) is fixedly mounted on the structural block (3), and the output end of the servo motor (15) is coaxially connected to the lead screw (13).

7. A combined vacuum forming mold according to claim 6, characterized in that, The structural block (3) is provided with a guide member (16), and the structural block (3) is connected to the lead screw moving block (14) through the guide member (16). The side guide rail (8) is provided with a guide limiting groove (17) corresponding to the guide member (16), and the guide member (16) is slidably engaged in the guide limiting groove (17).

Images