A preheating assembly of a plastic vacuum forming machine

Abstract

The utility model relates to blister forming machine equipment technical field discloses a kind of blister machine preheating subassembly, including bottom plate, the top of bottom plate is fixedly connected with support, the top of support is installed with lifting mechanism, the outer wall of lifting mechanism is fixedly connected with preheating box, the inner wall of preheating box is slidably connected with sliding plate, the outer wall of sliding plate is installed with fixed mechanism, the inner wall of sliding plate is detachably connected with heating pipe, the lifting mechanism includes motor, the drive end of motor is fixedly connected with rotating shaft, the outer wall of rotating shaft is fixedly connected with gear one, the outer wall of rotating shaft is rotatably connected with support block. In the utility model, the height of preheating box is adjusted by using lifting mechanism, this structure not only saves manpower, but also can accurately control the height position of preheating box, satisfies the preheating demand of different specifications blister material, improves the adaptability and operating efficiency of equipment.

Description

Technical Field

[0001] This utility model relates to the technical field of vacuum forming machine equipment, and in particular to a preheating component for a vacuum forming machine. Background Technology

[0002] A vacuum forming machine is a device that softens plastic sheets by heating them and then uses negative pressure in a mold to form the shape. It is widely used in the packaging, toy, and electronics industries. Its function is to process plastic sheets into products of specific shapes, such as food trays, cosmetic inserts, and industrial parts covers, to achieve product packaging, protection, and display. Its significance lies in improving packaging efficiency and quality, reducing material waste, adapting to the customized needs of diverse products, and promoting the standardization and large-scale production of the packaging industry. It is an important auxiliary equipment for modern manufacturing.

[0003] The purpose of a vacuum forming machine is to heat and soften plastic sheets, and then use the negative pressure of a mold to quickly form the product, transforming flat materials into products with specific shapes. This meets the customized needs of packaging, protection, and display scenarios, efficiently realizes plastic molding and processing, reduces production costs and material waste, and is compatible with packaging standards in multiple industries such as food, electronics, and medical. At the same time, it improves the sealing, protection, and aesthetics of product packaging.

[0004] In the existing technology, some preheating components of vacuum forming machines need to be adjusted manually with the help of tools. The adjustment process is cumbersome, time-consuming and labor-intensive. For large preheating boxes, multiple people are required to cooperate during adjustment, which is labor-intensive. Long-term repetitive operation can easily lead to human fatigue and increase the risk of operational errors. Therefore, a preheating component for vacuum forming machines is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a preheating component for a thermoforming machine, which aims to improve the existing technology that requires manual adjustment with the aid of tools. The adjustment process is cumbersome, time-consuming and labor-intensive. For large preheating boxes, adjustment requires the cooperation of multiple people, resulting in high labor intensity and easy human fatigue due to long-term repetitive operation.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A preheating assembly for a vacuum forming machine includes a base plate, a bracket fixedly connected to the top of the base plate, a lifting mechanism mounted on the top of the bracket, a preheating box fixedly connected to the outer wall of the lifting mechanism, a sliding plate slidably connected to the inner wall of the preheating box, a fixing mechanism mounted on the outer wall of the sliding plate, and a heating tube detachably connected to the inner wall of the sliding plate.

[0008] The lifting mechanism includes a motor, a rotating shaft is fixedly connected to the drive end of the motor, a gear is fixedly connected to the outer wall of the rotating shaft, a support block is rotatably connected to the outer wall of the rotating shaft, a plurality of rotating rods are rotatably connected to the inner wall of the support block, a plurality of gears are fixedly connected to the outer wall of the plurality of rotating rods, and a plurality of lifting components are installed on the outer wall of the plurality of rotating rods.

[0009] As a further description of the above technical solution:

[0010] The multiple lifting components include multiple pulleys 1, the inner walls of the multiple pulleys 1 are coupled to multiple tracks, the outer walls of the multiple tracks are coupled to multiple pulleys 2, the outer walls of the multiple pulleys 2 are rotatably connected to multiple fixed blocks, and the outer walls of the multiple tracks are fixedly connected to multiple transmission plates.

[0011] As a further description of the above technical solution:

[0012] The fixing mechanism includes a control block, a control rod is slidably connected inside the control block, a fixing ring is fixedly connected to the outer wall of the control rod, an elastic spring is sleeved on the outer wall of the control rod, a slider is fixedly connected to one end of the control rod, a positioning block is slidably connected to the outer wall of the slider, a fixing post is fixedly connected to the top of the positioning block, and a compression spring is sleeved on the outer wall of the fixing post.

[0013] As a further description of the above technical solution:

[0014] The bottom of the motor is fixedly connected to the top of the bracket, the outer wall of the rotating shaft is rotatably connected to the inner wall of the support block, the bottom of the support block is fixedly connected to the top of the bracket, and the outer side of the second gear is meshed with the outer side of the first gear.

[0015] As a further description of the above technical solution:

[0016] The inner walls of multiple pulleys are fixedly connected to the outer walls of multiple gears, the bottoms of multiple fixing blocks are fixedly connected to the top of the base plate, and the outer walls of multiple transmission plates are fixedly connected to the outer wall of the preheating box.

[0017] As a further description of the above technical solution:

[0018] The outer wall of the control block is fixedly connected to the outer wall of the sliding plate, the outer wall of the control rod is slidably connected to the inner wall of the sliding plate, and the outer wall of the slider is slidably connected to the inner wall of the sliding plate.

[0019] As a further description of the above technical solution:

[0020] The outer wall of the fixed ring is slidably connected to the inner wall of the control block, the outer wall of the positioning block is slidably connected to the inner wall of the sliding plate, and one end of the elastic spring is fixedly connected to the outer wall of the fixed ring.

[0021] As a further description of the above technical solution:

[0022] The outer wall of the positioning block is slidably connected to the inner wall of the preheating box, the outer wall of the fixing column is slidably connected to the inner wall of the preheating box, and one end of the compression spring is fixedly connected to the top of the positioning block.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, a motor drives a rotating shaft, which in turn drives a gear. Since gear one meshes with gear two on the outer wall of the rotating rod, gear one drives gear two and the rotating rod to rotate within the support block. The rotating rod drives pulley one to rotate, and pulley one drives pulley two through a track. When the track moves, the transmission plate on its outer wall drives the preheating box to move up and down synchronously, achieving height adjustment. This structure saves manpower, can accurately control the position, meet the needs of different thermoforming materials, and improves adaptability and efficiency.

[0025] 2. In this utility model, by pressing the control rod, the control rod drives the fixing ring to compress the elastic spring, and at the same time pushes the slider. Since the contact surface between the slider and the positioning block is inclined, the movement of the slider will push the positioning block upward until it is disengaged from the positioning groove. At this time, pulling the control block can remove the sliding plate to complete the disassembly. This structure does not require complicated operation. It is only necessary to slide the sliding plate in to complete the fixation, which realizes quick installation and improves installation efficiency. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a preheating component for a vacuum forming machine according to the present invention.

[0027] Figure 2 This is a schematic diagram of the structure of the control block of the preheating component of a vacuum forming machine proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the heating tube of a preheating component for a vacuum forming machine according to the present invention.

[0029] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0030] Legend:

[0031] 1. Base plate; 2. Bracket; 3. Lifting mechanism; 31. Motor; 32. Rotating shaft; 33. Gear 1; 34. Support block; 35. Rotating rod; 36. Gear 2; 37. Lifting assembly; 371. Pulley 1; 372. Track; 373. Pulley 2; 374. Fixing block; 375. Transmission plate; 4. Preheating box; 5. Sliding plate; 6. Fixing mechanism; 61. Control block; 62. Control rod; 63. Fixing ring; 64. Elastic spring; 65. Sliding block; 66. Positioning block; 67. Fixing column; 68. Compression spring; 7. Heating tube. Detailed Implementation

[0032] 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.

[0033] Reference Figure 1 and Figure 2 This utility model provides an embodiment of a preheating component for a thermoforming machine, including a base plate 1. The base plate 1 provides basic support for the entire equipment, ensuring the overall stability of the equipment. A bracket 2 is fixedly connected to the top of the base plate 1. The bracket 2 provides an installation platform for a lifting mechanism 3, ensuring the stable operation of the lifting mechanism 3. The lifting mechanism 3 is installed on the top of the bracket 2. The lifting mechanism 3 is driven by a motor 31 to adjust the height of the preheating box 4 without manual operation. The preheating box 4 is fixedly connected to the outer wall of the lifting mechanism 3. The preheating box 4 moves up and down through the lifting mechanism 3 to adapt to the preheating requirements of thermoforming materials of different specifications.

[0034] A sliding plate 5 is slidably connected to the inner wall of the preheating box 4. The sliding plate 5 can slide along the inner wall of the preheating box 4, which facilitates the installation and removal of the heating tube 7. A fixing mechanism 6 is installed on the outer wall of the sliding plate 5. The fixing mechanism 6 can quickly fix or loosen the sliding plate 5, which improves the installation efficiency of the heating tube 7. The heating tube 7 is detachably connected to the inner wall of the sliding plate 5. The heating tube 7 is used to heat the material. The lifting mechanism 3 includes a motor 31. The motor 31 provides a power source for the lifting mechanism 3 and drives the subsequent components to operate. The drive end of the motor 31 is fixedly connected to a rotating shaft 32, which transmits the power of the motor 31 to the gear 33.

[0035] Gear 1 33 is fixedly connected to the outer wall of the rotating shaft 32. Gear 1 33 rotates with the rotating shaft 32 and meshes with gear 2 36 to transmit power. Support block 34 is rotatably connected to the outer wall of the rotating shaft 32. Support block 34 provides rotational support for the rotating shaft 32 to ensure its stable rotation. Multiple rotating rods 35 are rotatably connected to the inner wall of the support block 34. The rotating rods 35 rotate within the support block 34 to transmit the power of gear 2 36 to the lifting assembly 37. Multiple gear 2 36 are fixedly connected to the outer wall of the multiple rotating rods 35. Gear 2 36 meshes with gear 1 33 to convert the rotation of gear 1 33 into the rotation of the rotating rod 35.

[0036] Multiple lifting components 37 are installed on the outer walls of multiple rotating rods 35. The lifting components 37 convert the rotation of the rotating rods 35 into linear motion, driving the preheating box 4 to rise and fall. The multiple lifting components 37 include multiple pulleys 371. The pulleys 371 rotate with the rotating rods 35 to provide power to the tracks 372. Multiple tracks 372 are coupled to the inner walls of the multiple pulleys 371. The tracks 372 move under the action of pulleys 371 and pulleys 373, driving the transmission plate 375 to move. Multiple pulleys 373 are coupled to the outer walls of the multiple tracks 372. The pulleys 373 cooperate with pulleys 371 to support the tracks 372 and ensure their stable movement.

[0037] Multiple pulleys 373 are rotatably connected to multiple fixing blocks 374 on their outer walls. The fixing blocks 374 fix the position of pulleys 373 to ensure stable rotation. Multiple tracks 372 are fixedly connected to multiple transmission plates 375 on their outer walls. The transmission plates 375 move with the tracks 372, driving the preheating box 4 to move up and down synchronously to achieve height adjustment. The bottom of the motor 31 is fixedly connected to the top of the bracket 2. The outer wall of the rotating shaft 32 is rotatably connected to the inner wall of the support block 34. The bottom of the support block 34 is fixedly connected to the top of the bracket 2. The outer side of gear 36 is meshed with the outer side of gear 33. The inner walls of multiple pulleys 371 are fixedly connected to the outer walls of multiple gears 36. The bottoms of multiple fixing blocks 374 are fixedly connected to the top of the base plate 1. The outer walls of multiple transmission plates 375 are fixedly connected to the outer wall of the preheating box 4.

[0038] Reference Figure 1 , Figure 3 and Figure 4The fixing mechanism 6 includes a control block 61, which is the operating component of the fixing mechanism 6, facilitating user operation of the control lever 62. The control lever 62 is slidably connected inside the control block 61, and can slide within the control block 61, driving the slider 65 to move. A fixing ring 63 is fixedly connected to the outer wall of the control lever 62, and moves with the control lever 62 to compress the elastic spring 64. The elastic spring 64 is sleeved on the outer wall of the control lever 62, and is compressed when the fixing ring 63 moves, providing a restoring force after the control lever 62 is released, so that the control lever 62 returns to its initial position. A slider 65 is fixedly connected to one end of the control lever 62, and moves with the control lever 62, pushing the positioning block 66 upward through the inclined surface. The positioning block 66 is slidably connected to the outer wall of the slider 65, and the slider 65 contacts the inclined surface of the positioning block 66. When the slider 65 moves, it pushes the positioning block 66 up and down, realizing the engagement and separation of the positioning block 66 and the positioning groove.

[0039] A fixing post 67 is fixedly connected to the top of the positioning block 66. The fixing post 67 provides an installation position for the compression spring 68 and limits the deformation direction of the compression spring 68. The compression spring 68 is sleeved on the outer wall of the fixing post 67. The compression spring 68 is compressed when the positioning block 66 is pushed and then released to push the positioning block 66 back to its original position, so that the positioning block 66 is inserted into the positioning groove. The outer wall of the fixing ring 63 is slidably connected to the inner wall of the control block 61. The outer wall of the positioning block 66 is slidably connected to the inner wall of the sliding plate 5. One end of the elastic spring 64 is fixedly connected to the outer wall of the fixing ring 63. The outer wall of the positioning block 66 is slidably connected to the inner wall of the preheating box 4. The outer wall of the fixing post 67 is slidably connected to the inner wall of the preheating box 4. One end of the compression spring 68 is fixedly connected to the top of the positioning block 66.

[0040] Working principle: When the height of the preheating box 4 needs to be adjusted, the motor 31 is started, and its drive end drives the rotating shaft 32 to rotate. The rotating shaft 32 drives the gear 1 33 to rotate synchronously. Since the gear 1 33 meshes with the gear 2 36 on the outer wall of the rotating rod 35, the gear 1 33 drives the gear 2 36 and the rotating rod 35 to rotate within the support block 34. The rotating rod 35 drives the pulley 1 371 to rotate. The pulley 1 371 drives the pulley 2 373 through the track 372. During the movement of the track 372, the transmission plate 375 fixedly connected to its outer wall will drive the preheating box 4 to move up and down synchronously, thereby realizing the adjustment of the height of the preheating box 4. This structure not only saves manpower, but also accurately controls the height position of the preheating box 4, meets the preheating requirements of different specifications of thermoforming materials, and improves the adaptability and operating efficiency of the equipment.

[0041] When it is necessary to install or remove the heating element 7, slide the sliding plate 5 along the inner wall of the preheating box 4. Since the outer wall of the positioning block 66 is inclined, when the edge of the sliding plate 5 contacts the inclined surface of the positioning block 66, push the positioning block 66 upward. At this time, the compression spring 68 is compressed. After the sliding plate 5 is completely slid into the preheating box 4, the positioning groove on the inner wall of the sliding plate 5 aligns with the positioning block 66. The compression spring 68 drives the positioning block 66 to return downward, so that the positioning block 66 slides into the positioning groove of the sliding plate 5, completing the installation. For disassembly, press the control lever. 62. Control rod 62 drives fixed ring 63, causing it to compress elastic spring 64. At the same time, control rod 62 pushes slider 65. Since the contact surface between slider 65 and positioning block 66 is inclined, slider 65 pushes positioning block 66 upward during movement until positioning block 66 is completely disengaged from positioning groove on inner wall of sliding plate 5. At this time, control block 61 can be pulled to remove sliding plate 5 from preheating box 4, completing disassembly. This structure does not require complicated operation; simply slide sliding plate 5 in to complete fixation, achieving rapid installation and improving installation efficiency.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A preheating assembly for a vacuum forming machine, comprising a base plate (1), characterized in that: A bracket (2) is fixedly connected to the top of the base plate (1), a lifting mechanism (3) is installed on the top of the bracket (2), a preheating box (4) is fixedly connected to the outer wall of the lifting mechanism (3), a sliding plate (5) is slidably connected to the inner wall of the preheating box (4), a fixing mechanism (6) is installed on the outer wall of the sliding plate (5), and a heating tube (7) is detachably connected to the inner wall of the sliding plate (5). The lifting mechanism (3) includes a motor (31), the drive end of the motor (31) is fixedly connected to a rotating shaft (32), the outer wall of the rotating shaft (32) is fixedly connected to a gear (33), the outer wall of the rotating shaft (32) is rotatably connected to a support block (34), the inner wall of the support block (34) is rotatably connected to multiple rotating rods (35), the outer walls of the multiple rotating rods (35) are fixedly connected to multiple gears (36), and the outer walls of the multiple rotating rods (35) are equipped with multiple lifting components (37).

2. The preheating component for a vacuum forming machine according to claim 1, characterized in that: The multiple lifting components (37) include multiple pulleys (371), the inner walls of the multiple pulleys (371) are coupled to multiple tracks (372), the outer walls of the multiple tracks (372) are coupled to multiple pulleys (373), the outer walls of the multiple pulleys (373) are rotatably connected to multiple fixing blocks (374), and the outer walls of the multiple tracks (372) are fixedly connected to multiple transmission plates (375).

3. The preheating component for a vacuum forming machine according to claim 1, characterized in that: The fixing mechanism (6) includes a control block (61), a control rod (62) is slidably connected inside the control block (61), a fixing ring (63) is fixedly connected to the outer wall of the control rod (62), an elastic spring (64) is sleeved on the outer wall of the control rod (62), a slider (65) is fixedly connected to one end of the control rod (62), a positioning block (66) is slidably connected to the outer wall of the slider (65), a fixing post (67) is fixedly connected to the top of the positioning block (66), and a compression spring (68) is sleeved on the outer wall of the fixing post (67).

4. The preheating component for a vacuum forming machine according to claim 1, characterized in that: The bottom of the motor (31) is fixedly connected to the top of the bracket (2), the outer wall of the rotating shaft (32) is rotatably connected to the inner wall of the support block (34), the bottom of the support block (34) is fixedly connected to the top of the bracket (2), and the outer side of the second gear (36) is meshed with the outer side of the first gear (33).

5. A preheating component for a vacuum forming machine according to claim 2, characterized in that: The inner walls of the multiple pulleys (371) are fixedly connected to the outer walls of the multiple gears (36), the bottoms of the multiple fixing blocks (374) are fixedly connected to the top of the base plate (1), and the outer walls of the multiple transmission plates (375) are fixedly connected to the outer walls of the preheating box (4).

6. A preheating assembly for a vacuum forming machine according to claim 3, characterized in that: The outer wall of the control block (61) is fixedly connected to the outer wall of the sliding plate (5), the outer wall of the control rod (62) is slidably connected to the inner wall of the sliding plate (5), and the outer wall of the slider (65) is slidably connected to the inner wall of the sliding plate (5).

7. A preheating component for a vacuum forming machine according to claim 3, characterized in that: The outer wall of the fixed ring (63) is slidably connected to the inner wall of the control block (61), the outer wall of the positioning block (66) is slidably connected to the inner wall of the sliding plate (5), and one end of the elastic spring (64) is fixedly connected to the outer wall of the fixed ring (63).

8. A preheating assembly for a vacuum forming machine according to claim 3, characterized in that: The outer wall of the positioning block (66) is slidably connected to the inner wall of the preheating box (4), the outer wall of the fixing column (67) is slidably connected to the inner wall of the preheating box (4), and one end of the compression spring (68) is fixedly connected to the top of the positioning block (66).

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