Mechanical calibration of plastic bottle volume

By using a mold positioning and adjustment mechanism, combined with a pneumatic sensor, the problem of irregular plastic bottle shape caused by mold vibration was solved, achieving precise calibration of plastic bottle volume and improving production efficiency.

CN224311166UActive Publication Date: 2026-06-02FOSHAN BAOGUAN PLASTIC PROD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FOSHAN BAOGUAN PLASTIC PROD CO LTD
Filing Date
2025-07-14
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing mechanical calibration and metering devices for plastic bottle volume are prone to mispositioning due to mold vibration during injection molding. This results in irregular shapes and uneven wall thicknesses in the plastic bottles, affecting product appearance and performance, and increasing the defect rate.

Method used

The system employs a mold positioning and adjustment mechanism, using components such as motors, gears, racks, and hydraulic rods to achieve stable mold fixation and position adjustment, while also using a pressure sensor for volume data calibration.

Benefits of technology

It achieves stable mold positioning and precise volume calibration, improving the practicality and production efficiency of the equipment and reducing the defect rate.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a mechanical calibration and quantitative device for plastic bottle volume, relating to the fields of mechanical engineering and automation technology. The utility model includes an operating table with several support columns fixedly connected to its bottom outer wall, and several support rods fixedly connected to the inner wall of a fixed block. By incorporating a rack and pinion mechanism, the required mold is first placed on the support plate surface. Then, the motor is started via the control panel, causing the rotating shaft to rotate. The rotating shaft drives the gears to rotate, which in turn causes the racks at both ends to slide on the outer wall of the support rods. The sliding of the racks causes the connecting block to move, and the movement of the connecting block causes the fixed head to slide on the outer wall of the sliding rod. The two fixed heads move in opposite directions, using the pressure of the two fixed heads to fix and position the mold, achieving stable mold positioning. This allows for the fixing of molds of different sizes, significantly improving the practicality, flexibility, and production efficiency of the equipment.
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Description

Technical Field

[0001] This utility model belongs to the field of mechanical engineering and automation technology, and in particular relates to a mechanical calibration and quantitative device for plastic bottle volume. Background Technology

[0002] In modern industrial production, plastic bottles are widely used as packaging containers in numerous industries such as food, beverage, pharmaceuticals, and chemicals. These industries have extremely high requirements for the accuracy of plastic bottle volume, leading to the development of mechanical calibration and metering devices for plastic bottle volume.

[0003] The mechanical calibration and quantitative device for plastic bottle volume refers to an electromechanical integrated device used in industrial production, specifically for the precise measurement and calibration of the volume of plastic bottles.

[0004] During the use of existing equipment, the vibration generated by the device during injection molding causes the mold to shift or fall off. However, inaccurate mold positioning can lead to irregular shapes of plastic bottles during the molding process, such as bottle body tilting and uneven wall thickness, which seriously affects the appearance and performance of the product and increases the defect rate. Therefore, we provide a plastic bottle volume mechanical calibration and quantitative device. Utility Model Content

[0005] The purpose of this utility model is to provide a mechanical calibration and quantitative device for plastic bottle volume. Through the mold positioning mechanism and adjustment mechanism, it solves the problem that in the existing equipment, due to the vibration generated by the device during injection molding, the mold may be displaced or fall off. However, inaccurate mold positioning will lead to irregular shape of plastic bottle during the molding process, such as bottle body tilting and uneven wall thickness, which seriously affects the appearance and performance of the product and increases the defect rate.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is a mechanical calibration and quantitative device for the volume of plastic bottles, including an operating table. Several support columns are fixedly connected to the bottom outer wall of the operating table, and a control panel is fixedly connected to the top outer wall of the operating table. A mold positioning mechanism is provided on the outer wall of the operating table.

[0008] The mold positioning mechanism includes several fixed blocks. The bottom outer wall of each fixed block is fixedly connected to the top outer wall of the operating table. Several support rods are fixedly connected to the inner wall of each fixed block. A rack is slidably connected to the outer wall of each support rod. A motor plate is fixedly connected to the bottom outer wall of the operating table. A motor is fixedly connected to the inner wall of the motor plate. A rotating shaft is fixedly connected to the bottom output shaft of the motor via a coupling. A gear is fixedly connected to the outer wall of the rotating shaft at the end away from the motor. The outer wall of the gear meshes with the outer wall of the rack. A support plate is fixedly connected to the top outer wall of the operating table. Several sliding grooves are opened on the inner wall of the support plate. A sliding rod is fixedly connected to the inner wall of each sliding groove.

[0009] Furthermore, a connecting block is fixedly connected to the top outer wall of the rack, the inner wall of the connecting block is slidably connected to the outer wall of the slide rod, a fixing head is fixedly connected to the top outer wall of the connecting block, the outer wall of the fixing head contacts the mold, and an adjustment device is provided on the outer wall of the operating table.

[0010] Furthermore, the adjustment device includes an auxiliary block, the outer wall of which is fixedly connected to the outer wall of the operating table, and a second motor is fixedly connected to the outer wall of the auxiliary block. The bottom output shaft of the second motor is fixedly connected to a rotating shaft via a coupling.

[0011] Furthermore, a threaded rod is fixedly connected to the end of the rotating shaft away from the motor 2, and several auxiliary blocks 2 are fixedly connected to the top outer wall of the operating table, with the inner wall of the auxiliary blocks 2 rotatably connected to the outer wall of the threaded rod.

[0012] Furthermore, a sliding plate is threadedly connected to the outer wall of the threaded rod, and a slide rail is fixedly connected to the inner wall of the top of the operating table, with the inner wall of the slide rail slidably connected to the outer wall of the sliding plate.

[0013] Furthermore, a fixing plate is fixedly connected to the top outer wall of the sliding plate, and a hydraulic rod is fixedly connected to the inner wall of the fixing plate.

[0014] Furthermore, the outer wall of the hydraulic rod is slidably connected to the inner wall of the sliding plate, a push plate is fixedly connected to the output end of the hydraulic rod, a connecting plate is fixedly connected to the outer wall of the sliding plate, and the inner wall of the connecting plate is slidably connected to the outer wall of the push plate.

[0015] Furthermore, a blow molding nozzle is fixedly connected to the bottom outer wall of the push plate, and a pressure sensor is fixedly connected to the inner wall of the blow molding nozzle.

[0016] This utility model has the following beneficial effects:

[0017] 1. This utility model, by incorporating a rack and pinion mechanism, first places the required mold on the support plate surface. Then, the motor is started via the control panel, causing the rotating shaft to rotate. The rotation of the rotating shaft drives the gears to rotate, which in turn causes the racks at both ends to slide on the outer wall of the support rod. The sliding of the racks causes the connecting block to move, and the movement of the connecting block causes the fixing head to slide on the outer wall of the slide rod. The two fixing heads move in opposite directions, using the pressure of the two fixing heads to fix and position the mold. This achieves stable fixing and positioning of the mold, and also allows for fixing molds of different sizes, significantly improving the practicality, flexibility, and production efficiency of the equipment.

[0018] 2. This utility model incorporates a pressure sensor. First, the second motor is activated via the control panel, causing the rotating shaft to rotate. The rotating shaft drives the threaded rod to rotate, which in turn causes the sliding plate to slide along the slide rail. Then, the hydraulic rod is activated via the control panel, pushing the push plate to slide within the connecting plate and simultaneously adjusting the position of the blow molding nozzle. After injection molding is complete and the plastic bottle cools, air is then injected into the plastic bottle through the blow molding nozzle. The pressure sensor converts the gas pressure signal inside the bottle into volume data, enabling stable adjustment of the blow molding nozzle position and precise calibration of the plastic bottle's volume.

[0019] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the mold positioning mechanism of this utility model;

[0024] Figure 4 This is a schematic diagram of the adjustment mechanism of this utility model;

[0025] Figure 5 This utility model Figure 4 Enlarged view of point A in the middle.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Operating table; 101. Support column; 102. Control panel; 2. Mold positioning mechanism; 201. Fixing block; 202. Support rod; 203. Rack; 204. Motor plate; 205. Motor; 206. Rotating shaft; 207. Gear; 208. Support plate; 209. Slide groove; 210. Slide rod; 211. Connecting block; 212. Fixing head; 213. Mold; 3. Adjustment device; 301. Auxiliary block; 302. Motor II; 303. Rotating shaft; 304. Auxiliary block II; 305. Threaded rod; 306. Slide rail; 307. Sliding plate; 308. Fixing plate; 309. Hydraulic rod; 310. Connecting plate; 311. Push plate; 312. Blow nozzle; 313. Air pressure sensor. Detailed Implementation

[0028] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-5 As shown, this utility model is a mechanical calibration and quantitative device for plastic bottle volume, including an operating table 1. Several support columns 101 are fixedly connected to the bottom outer wall of the operating table 1, and a control panel 102 is fixedly connected to the top outer wall of the operating table 1. A mold positioning mechanism 2 is provided on the outer wall of the operating table 1. The position of the support columns 101 is fixed by the operating table 1 to prevent the support columns 101 from shifting when the device is started, which could damage the device.

[0030] The mold positioning mechanism 2 includes several fixed blocks 201. The bottom outer wall of the fixed blocks 201 is fixedly connected to the top outer wall of the operating table 1. Several support rods 202 are fixedly connected to the inner wall of the fixed blocks 201. A rack 203 is slidably connected to the outer wall of each support rod 202. The fixed blocks 201 fix the position of the support rods 202, preventing the rack 203 from slipping off the surface of the support rods 202 and causing the device to jam. A motor plate 204 is fixedly connected to the bottom outer wall of the operating table 1. A motor 205 is fixedly connected to the inner wall of the motor plate 204. A rotating shaft 206 is fixedly connected to the bottom output shaft of the motor 205 via a coupling. A gear 207 is fixedly connected to the outer wall of the end of the rotating shaft 206 away from the motor 205. The motor 205 causes the rotating shaft 206 to rotate stably, preventing the rotating shaft 206 from failing to rotate and causing the device to malfunction. In case of an incident, the outer wall of gear 207 meshes with the outer wall of rack 203. A support plate 208 is fixedly connected to the top outer wall of the operating platform 1. The support plate 208 drives the inner wall to open several sliding grooves 209. A sliding rod 210 is fixedly connected to the inner wall of the sliding groove 209. The sliding rod 210 is fixedly positioned by the sliding groove 209 to prevent the connecting block 211 from shifting position when sliding on its surface, thus preventing the device from jamming. A connecting block 211 is fixedly connected to the top outer wall of rack 203. The inner wall of the connecting block 211 is slidably connected to the outer wall of sliding rod 210. A fixing head 212 is fixedly connected to the top outer wall of connecting block 211. The outer wall of fixing head 212 contacts mold 213. An adjustment device 3 is provided on the outer wall of operating platform 1. The connecting block 211 can slide stably by sliding rod 210 to prevent the connecting block 211 from shifting position when sliding, thus preventing the device from malfunctioning.

[0031] The adjusting device 3 includes an auxiliary block 301. The outer wall of the auxiliary block 301 is fixedly connected to the outer wall of the operating table 1. A second motor 302 is fixedly connected to the outer wall of the auxiliary block 301. The bottom output shaft of the second motor 302 is fixedly connected to a rotating shaft 303 via a coupling. The second motor 302 enables the rotating shaft 303 to rotate stably, preventing the rotating shaft 303 from failing to rotate and thus ensuring the device functions properly. A threaded rod 305 is fixedly connected to the end of the rotating shaft 303 away from the second motor 302. Several second auxiliary blocks 304 are fixedly connected to the top outer wall of the operating table 1. The inner wall of the second auxiliary blocks 304 is rotatably connected to the outer wall of the threaded rod 305. A sliding plate 307 is threadedly connected to the outer wall of the threaded rod 305. The second auxiliary blocks 304 enable the threaded rod 305 to rotate stably, preventing the threaded rod 305 from falling off during rotation and thus preventing the device from jamming. A slide rail is fixedly connected to the top inner wall of the operating table 1. 306. The inner wall of the slide rail 306 is slidably connected to the outer wall of the slide plate 307. A fixing plate 308 is fixedly connected to the top outer wall of the slide plate 307. A hydraulic rod 309 is fixedly connected to the inner wall of the fixing plate 308. The fixing plate 308 fixes the position of the hydraulic rod 309 to prevent it from falling off during operation and causing damage to the device. The outer wall of the hydraulic rod 309 is slidably connected to the inner wall of the slide plate 307. A push plate 311 is fixedly connected to the output end of the hydraulic rod 309. A connecting plate 310 is fixedly connected to the outer wall of the slide plate 307. The inner wall of the connecting plate 310 is slidably connected to the outer wall of the push plate 311. A blow molding nozzle 312 is fixedly connected to the bottom outer wall of the push plate 311. A pressure sensor 313 is fixedly connected to the inner wall of the blow molding nozzle 312. The push plate 311 fixes the position of the blow molding nozzle 312 to prevent it from falling off during operation and causing damage to the device.

[0032] One specific application of this embodiment is:

[0033] When the operator needs to use the equipment, first place the required mold 213 on the surface of the support plate 208, then start the motor 205 through the control panel 102 to rotate the rotating shaft 206. The rotation of the rotating shaft 206 drives the gear 207 to rotate, and the rotation of the gear 207 drives the racks 203 at both ends to slide on the outer wall of the support rod 202. At the same time, the racks 203 at both ends move in opposite directions. The sliding of the racks 203 drives the connecting block 211 to move, and the movement of the connecting block 211 drives the fixed head 212 to slide on the outer wall of the slide rod 210, making the movement of the fixed head 212 more stable. At the same time, the racks 203 cause the fixed heads 212 at both ends to move in opposite directions. The mold 213 is fixed and positioned by the pressure of the fixed heads 212 at both ends. Then, the operator starts the motor 205 through the control panel 102 to rotate the rotating shaft 206. The rotating shaft 206 drives the gear 207 to rotate, and the rotating shaft 206 drives the gear 208 to rotate, and the rotating shaft 208 drives the gear 209 to rotate, and the rotating shaft 200 drives the gear 201 to rotate, and the rotating shaft 202 drives the gear 202 to rotate, and the rotating shaft 209 drives the gear 202 to rotate, and the rotating shaft 209 drives the gear 202 to rotate, and the rotating shaft 209 drives the gear 202 to rotate, and the rotating shaft 209 drives the gear 202 to rotate, and the rotating shaft 202 drives the gear 203 to rotate, and the rotating shaft 209 drives the gear 202 to rotate, and the rotating shaft 202 drives the gear 203 to rotate, and the rotating shaft 209 drives the gear 2. Start motor 302. Motor 302 causes rotating shaft 303 to rotate. Rotating shaft 303 drives threaded rod 305 to rotate. Rotating threaded rod 305 drives sliding plate 307 to slide on slide rail 306, making sliding plate 307 more stable when moving. Then, start hydraulic rod 309 through control panel 102. Hydraulic rod 309 pushes push plate 311 to slide in connecting plate 310, making push plate 311 more stable when moving. At the same time, adjust the position of blow nozzle 312. After injection molding is completed and the plastic bottle cools, the plastic bottle is inflated through blow nozzle 312. The air pressure sensor 313 converts the gas pressure signal in the bottle into volume data to achieve accurate calibration. If the plastic bottle is not qualified after injection molding, the mold cavity size is recalculated and adjusted.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A mechanical calibration and quantitative device for plastic bottle volume, comprising an operating table (1), characterized in that: The bottom outer wall of the operating table (1) is fixedly connected with several support columns (101), the top outer wall of the operating table (1) is fixedly connected with a control panel (102), and the outer wall of the operating table (1) is provided with a mold positioning mechanism (2). The mold positioning mechanism (2) includes several fixing blocks (201). The bottom outer wall of the fixing block (201) is fixedly connected to the top outer wall of the operating table (1). Several support rods (202) are fixedly connected to the inner wall of the fixing block (201). A rack (203) is slidably connected to the outer wall of each support rod (202). A motor plate (204) is fixedly connected to the bottom outer wall of the operating table (1). A motor (205) is fixedly connected to the inner wall of the motor plate (204). The bottom output shaft of the machine (205) is fixedly connected to a rotating shaft (206) via a coupling. A gear (207) is fixedly connected to the outer wall of the rotating shaft (206) away from the motor (205). The outer wall of the gear (207) meshes with the outer wall of the rack (203). A support plate (208) is fixedly connected to the top outer wall of the operating table (1). The support plate (208) drives the inner wall to open several sliding grooves (209). A sliding rod (210) is fixedly connected to the inner wall of the sliding groove (209).

2. The mechanical calibration and quantitative device for plastic bottle volume as described in claim 1, characterized in that, A connecting block (211) is fixedly connected to the top outer wall of the rack (203). The inner wall of the connecting block (211) is slidably connected to the outer wall of the slide rod (210). A fixing head (212) is fixedly connected to the top outer wall of the connecting block (211). The outer wall of the fixing head (212) contacts the mold (213). An adjustment device (3) is provided on the outer wall of the operating table (1).

3. The mechanical calibration and quantitative device for plastic bottle volume as described in claim 2, characterized in that, The adjustment device (3) includes an auxiliary block (301), the outer wall of the auxiliary block (301) is fixedly connected to the outer wall of the operating table (1), and a second motor (302) is fixedly connected to the outer wall of the auxiliary block (301). The bottom output shaft of the second motor (302) is fixedly connected to a rotating shaft (303) through a coupling.

4. The mechanical calibration and quantitative device for plastic bottle volume as described in claim 3, characterized in that, A threaded rod (305) is fixedly connected to one end of the rotating shaft (303) away from the motor (302). Several auxiliary blocks (304) are fixedly connected to the top outer wall of the operating table (1). The inner wall of the auxiliary blocks (304) is rotatably connected to the outer wall of the threaded rod (305).

5. The mechanical calibration and quantitative device for plastic bottle volume as described in claim 4, characterized in that, The outer wall of the threaded rod (305) is threadedly connected to a sliding plate (307), and the top inner wall of the operating table (1) is fixedly connected to a slide rail (306). The inner wall of the slide rail (306) is slidably connected to the outer wall of the sliding plate (307).

6. The mechanical calibration and quantitative device for plastic bottle volume as described in claim 5, characterized in that, A fixing plate (308) is fixedly connected to the top outer wall of the sliding plate (307), and a hydraulic rod (309) is fixedly connected to the inner wall of the fixing plate (308).

7. The mechanical calibration and quantitative device for plastic bottle volume as described in claim 6, characterized in that, The outer wall of the hydraulic rod (309) is slidably connected to the inner wall of the sliding plate (307). The output end of the hydraulic rod (309) is fixedly connected to a push plate (311). The outer wall of the sliding plate (307) is fixedly connected to a connecting plate (310). The inner wall of the connecting plate (310) is slidably connected to the outer wall of the push plate (311).

8. The mechanical calibration and quantitative device for plastic bottle volume as described in claim 7, characterized in that, The bottom outer wall of the push plate (311) is fixedly connected to a blow molding port (312), and the inner wall of the blow molding port (312) is fixedly connected to a pressure sensor (313).