A fast and efficient demolding auxiliary clamp for glass bottle molds

Abstract

This utility model relates to the field of glass bottle production technology and discloses a fast and efficient demolding auxiliary fixture for glass bottle molds. A positive and negative threaded screw module is used to drive two moving seats to move closer together or further apart. The glass bottle blowing mold includes a blank placement platform, a left mold, and a right mold. The blank placement platform is detachably and replaceably mounted on the central platform of the positive and negative threaded screw module via disassembly structure A. The left and right molds are detachably and replaceably mounted on the two moving seats via disassembly structure B. A slotted photoelectric switch is used for detecting the left and right molds' engagement with the blank placement platform and for detecting their opening. This utility model achieves rapid mold replacement through disassembly structures A and B, adapting to the production of multiple specifications of glass bottles and significantly improving mold replacement efficiency. With the cooperation of the slotted photoelectric switch and the positive and negative threaded screw module, accurate detection and stable control of mold opening and closing are achieved, reducing product defects and protecting equipment.

Description

Technical Field

[0001] This utility model belongs to the field of glass bottle production technology, specifically relating to a quick and efficient demolding auxiliary fixture for glass bottle molds. Background Technology

[0002] In the glass bottle manufacturing industry, blow molding is a core process, and the mold opening and closing control and demolding efficiency directly determine the production rhythm and product quality. Currently, the industry commonly uses mold fixtures to assist in the demolding operation after glass bottle blow molding. These fixtures need to work with the blow molding mold to achieve precise mold closing to ensure the shape accuracy of the glass bottle. At the same time, they must have a certain degree of flexibility to adapt to the production needs of glass bottles of different specifications. In addition, a reliable position detection mechanism is required to avoid molding defects caused by incomplete mold closing or equipment damage caused by excessive mold opening. Therefore, the stability, adaptability, and detection accuracy of mold auxiliary fixtures have become the focus of industry attention.

[0003] Existing glass bottle mold demolding auxiliary fixtures have significant drawbacks in practical applications: most fixtures use a fixed connection method for the blow molding mold (including the blank support component and the left and right mold bodies). When it is necessary to switch to the production of glass bottles of different sizes or shapes, a large number of connecting parts need to be disassembled and the overall structure needs to be adjusted. The mold change process is cumbersome and time-consuming, which seriously affects production efficiency and makes it difficult to meet the production needs of multiple categories and small batches. At the same time, the fixed connection structure also increases the difficulty of mold maintenance and replacement, and increases the equipment operation and maintenance costs.

[0004] In addition, the existing mold opening and closing position detection mechanisms of the fixtures also have shortcomings: some equipment relies on mechanical limit blocks for position judgment. After long-term use, the limit blocks are prone to wear, which leads to a decrease in detection accuracy. This can cause problems such as excessive mold closing gap (causing burrs and shape deviations on glass bottles) or incomplete mold opening (causing collisions with the mold and breakage of the glass bottle during demolding). Other equipment that uses a single sensor for detection cannot simultaneously and accurately capture the key positions of mold closing and opening. Moreover, the sensor position is fixed, making it difficult to adapt to new detection requirements after mold replacement. It also lacks a closed-loop protection mechanism. When detection fails, the equipment cannot be stopped in time, which can easily lead to waste of blanks, mold wear, or even equipment failure, and cannot guarantee the stability and safety of the production process. Utility Model Content

[0005] The present invention aims to solve the technical problems of the prior art, which are that glass bottle molds are mostly fixed connections, mold changes require adjustment of the overall structure, the process is cumbersome and time-consuming, making it difficult to adapt to diversified production, and position detection relies on mechanical limit or a single sensor, which is prone to decrease in accuracy and lacks closed-loop protection, easily leading to product defects and equipment damage.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A quick and efficient demolding auxiliary clamp for glass bottle molds, comprising:

[0008] The forward and reverse threaded screw module is used to drive two moving seats to move closer to each other or further apart.

[0009] The glass bottle blowing molding mold includes a blank placement platform, a left mold, and a right mold. The blank placement platform is detachably and replaceably mounted on the central platform of the positive and negative threaded screw module via disassembly structure A. The left mold and the right mold are detachably and replaceably mounted on two movable seats via disassembly structure B, respectively.

[0010] The slotted photoelectric switches are symmetrically installed in two groups on the positive and negative threaded screw modules. Each group is equipped with two slotted photoelectric switches. The two slotted photoelectric switches are used for mold closing detection and mold opening detection of the left mold and right mold and the blank placement platform, respectively.

[0011] By using disassembly and assembly structure A and disassembly and assembly structure B, different blank placement platforms, left molds and right molds can be replaced, so as to replace different glass bottle blowing molds. The opening and closing process of the glass bottle blowing mold is accurately detected and the status feedback is provided by the slotted photoelectric switch.

[0012] Preferably, the forward and reverse threaded screw module includes a U-shaped bracket, a central platform located at the center of the U-shaped bracket, forward and reverse threaded screws rotatably connected to the U-shaped bracket and the central platform, a servo geared motor driving the forward and reverse threaded screws to rotate, and two guide rods connecting the U-shaped bracket and the central platform and located on both sides of the forward and reverse threaded screws; two movable seats are respectively connected to the forward and reverse threaded screws through threaded screw nuts and located on both sides of the central platform, and the two movable seats also cooperate with the guide rods for guiding sliding.

[0013] As a preferred embodiment, the disassembly structure A includes four symmetrically arranged insert rods fixed to the top of the central platform and a sleeve fixed to the bottom of the billet placement platform and connected to the insert rods; two threaded rods A are inserted through the two symmetrically arranged insert rods and the sleeve, and two nuts A are threaded to the two ends of the threaded rods A to fix the two inserted rods and the sleeve together, thereby installing the billet placement platform on the central platform. The billet placement platform can be removed and replaced by removing the threaded rods A and the nuts A.

[0014] Preferably, the disassembly structure B includes a connecting seat, four external threaded rods B fixed at the four corners of the connecting seat, an inverted T-shaped bracket fixed at the top of the movable seat, and two right-angle plates fixed on the inverted T-shaped bracket. After the four external threaded rods B pass through the two right-angle plates respectively, the connecting seat is locked and fixed to the two right-angle plates by nuts B that are screwed to the external threaded rods B, and then fixed to the movable seat. The connecting seat on the disassembly structure B is fixed to the left mold or the right mold. The left mold or the right mold can be removed by removing the nuts B.

[0015] Preferably, the blank placement platform is a circular platform, and the left and right molds are provided with forming grooves that surround the outer side of the blank placement platform and cooperate with the blank placement platform to form a glass bottle blowing molding cavity.

[0016] Preferably, the left mold has a protrusion and the right mold has a recess that mates with the protrusion. When the blank placement platform, the left mold and the right mold are joined together, the protrusion and the recess mate to guide and position the blank.

[0017] Preferably, one side of the U-shaped bracket is provided with mounting grooves located on both sides of the central platform. The groove-shaped photoelectric switch is fixed on the switch mounting base, and the switch mounting base is fixed to the side of the U-shaped bracket by screws that pass through the switch mounting base and are screwed into the mounting groove.

[0018] Preferably, each of the two movable toilet seats has a strip-shaped limiting plate fixed to its side by screws. When the two movable seats move the strip-shaped limiting plates to the sensing slot of the slot-shaped photoelectric switch, they will block the light of the slot-shaped photoelectric switch, causing the photoelectric switch to generate a level trigger signal, thereby realizing the detection of the position of the movable seats.

[0019] Compared with the prior art, the technical effects and advantages of this utility model are:

[0020] This invention, through the design of disassembly structure A and disassembly structure B, allows the blank placement platform, left mold, and right mold to be independently and quickly disassembled and replaced. No adjustments to the overall fixture structure are required; switching between molds of different specifications can be achieved simply by disassembling components such as the external threaded rod and nut. This significantly shortens mold changeover time, effectively adapting to the production needs of glass bottles of various sizes and shapes. It solves the problems of cumbersome and time-consuming mold changes in existing technologies, and improves the equipment's responsiveness to diverse production tasks.

[0021] This invention features a forward and reverse threaded screw module paired with guide rods on both sides, which drives the moving seat to smoothly and accurately complete the mold closing and opening actions of the left and right molds, preventing displacement during mold movement. Simultaneously, the guide insertion structure of the left mold protrusion and the right mold recess further calibrates the mold closing position and eliminates mold splicing gaps. Compared to existing technologies where mold misalignment easily leads to molding defects, this invention effectively ensures the consistency of the molding cavity in glass bottle blowing, reduces product defects such as burrs and shape deviations, and improves the product qualification rate.

[0022] This utility model's slotted photoelectric switch detection system provides reliable and accurate detection and closed-loop protection for the mold opening and closing process. Two symmetrical sets of two slotted photoelectric switches in each set detect mold closing and mold opening respectively. The mold position is fed back in real time via a strip-shaped limit plate trigger signal. The switch position can be finely adjusted as the mold is changed, ensuring that the detection accuracy is unaffected by changes in mold specifications. Compared to existing technologies where mechanical limit switches are prone to wear and single sensors provide incomplete detection, this utility model effectively avoids equipment stoppages caused by incomplete mold closing and demolding collisions caused by incomplete mold opening. Furthermore, through closed-loop linkage with the control system, it promptly alarms and stops abnormal actions, protecting the equipment and mold and reducing material waste.

[0023] This invention's rapid mold change design reduces equipment downtime and increases total production per unit time. The modular mold assembly and disassembly method allows individual mold components (such as worn left or right molds) to be replaced independently, eliminating the need for complete mold replacement and reducing spare parts procurement and maintenance costs. Furthermore, precise detection and protection mechanisms reduce product scrap rates, mold wear rates, and equipment failure probabilities, minimizing additional losses during production. In summary, this invention effectively solves the problems of low production efficiency and high maintenance costs in existing technologies, providing a more efficient, stable, and economical auxiliary fixture solution for glass bottle production. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the mold-closing structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the mold opening structure of this utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the left mold of this utility model;

[0027] Figure 4 This is a schematic diagram of the right mold of this utility model;

[0028] Figure 5 This is a schematic diagram of the structure of the slot-type photoelectric switch of this utility model;

[0029] Figure 6 This is a schematic diagram of the disassembly and assembly structure A of this utility model;

[0030] Figure 7 This is an exploded view of the disassembly and assembly structure A of this utility model.

[0031] In the picture:

[0032] 1. Forward and reverse threaded screw module; 11. Central platform; 12. Moving base; 13. U-shaped bracket; 14. Forward and reverse threaded screw; 15. Servo geared motor; 16. Guide rod; 17. Mounting slot; 18. Strip-shaped limit plate;

[0033] 2. Glass bottle blowing molding mold; 21. Blank placement platform; 22. Left mold; 23. Right mold; 24. Molding groove; 25. Protrusion; 26. Recess;

[0034] 3. Disassembly and assembly structure A; 31. Insert rod; 32. Sleeve; 33. External threaded rod A; 34. Nut A;

[0035] 4. Disassembly and assembly structure B; 41. Connecting seat; 42. External threaded rod B; 43. Inverted T-shaped bracket; 44. Right angle plate; 45. Nut B;

[0036] 5. Slotted photoelectric switch; 51. Switch mounting base. Detailed Implementation

[0037] 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.

[0038] The following combination Figures 1 to 7 This application will be described in further detail.

[0039] This application discloses a fast and efficient demolding auxiliary fixture for glass bottle molds, which includes a positive and negative threaded screw module 1, a glass bottle blowing mold 2, and a slotted photoelectric switch 5. The positive and negative threaded screw module 1 is used to drive two moving seats 12 to move closer to each other or further apart.

[0040] The glass bottle blowing molding mold 2 includes a blank placement platform 21, a left mold 22 and a right mold 23. The blank placement platform 21 is detachably and replaceably installed on the central platform 11 of the positive and negative threaded screw module 1 through the disassembly and assembly structure A3. The left mold 22 and the right mold 23 are detachably and replaceably installed on two movable seats 12 through the disassembly and assembly structure B4, respectively.

[0041] Two sets of slotted photoelectric switches 5 are symmetrically installed on the positive and negative threaded screw module 1. Each set has two slotted photoelectric switches 5. These two slotted photoelectric switches 5 are used for mold closing detection and mold opening detection of the left mold 22, right mold 23 and blank placement platform 21, respectively.

[0042] Different blank placement platforms 21, left mold 22 and right mold 23 can be replaced by disassembly and assembly structures A3 and B4, thereby replacing different glass bottle blowing molds 2. At the same time, the slotted photoelectric switch 5 performs precise position detection and status feedback on the opening and closing process of the glass bottle blowing mold 2.

[0043] The forward and reverse threaded screw module 1 includes a U-shaped bracket 13, a central platform 11 located at the center of the U-shaped bracket 13, a forward and reverse threaded screw 14 rotatably connected to the U-shaped bracket 13 and the central platform 11, a servo geared motor 15 driving the forward and reverse threaded screw 14 to rotate, and two guide rods 16 connecting the U-shaped bracket 13 and the central platform 11 and located on both sides of the forward and reverse threaded screw 14; two movable seats 12 are respectively connected to the forward and reverse threaded screw 14 through threaded screw nuts and located on both sides of the central platform 11, and the two movable seats 12 also cooperate with the guide rods 16 for guidance and sliding. By driving the forward and reverse threaded screw 14 to rotate through the servo geared motor 15, the two movable seats 12 can be moved closer to each other or further away from each other.

[0044] The servo geared motor 15 outputs torque to drive the positive and negative threaded screw 14 to rotate. Since the threads at both ends of the screw turn in opposite directions, through the transmission cooperation between the screw nut and the screw, the two moving seats 12 on both sides can be driven to move "relatively closer" or "away from each other" along the guide rod 16, thereby realizing the mold closing and opening actions of the left mold 22 and the right mold 23.

[0045] The servo geared motor 15 can be from Panasonic A6 series (such as MSME022G1A+MADDT1207) or Siemens V90 series (such as 1FL6044-1AF61-0AA1+6SL3210-5FE10-4UA0). The selection should be based on the opening and closing torque requirements of the equipment. For conventional glass bottle production, a power of 0.2-0.75kW should be selected to ensure sufficient power and stable operation.

[0046] For the positive and negative lead screws 14, HIWIN SFU series (such as SFU1605) and THK BK series are selected according to the load of the moving seat. The lead is 5-10mm to ensure the balance between mold opening and closing speed and accuracy. The surface anti-rust treatment is suitable for the workshop environment.

[0047] For the bearings (screw support), you can choose SKF 6200 series or NSK 6300 series, deep groove ball bearings, which are suitable for the screw speed, improve the screw rotation stability and extend the service life;

[0048] Two guide rods 16 are distributed parallel to each other on both sides of the positive and negative threaded rods 14, and slide in cooperation with the moving seat 12. They can limit the offset of the moving seat 12 during the movement, ensuring that the left mold 22 and the right mold 23 always maintain a precise movement trajectory when opening and closing, and avoiding the impact of mold misalignment on molding accuracy. Relying on the precise speed control of the servo geared motor 15 and the synchronous transmission characteristics of the positive and negative threaded rods 14, the opening and closing speed can be smoothly adjusted to avoid mold collision; at the same time, the self-locking function of the servo motor can keep the mold stable after it is closed, preventing the mold from loosening during the molding process.

[0049] The blank placement platform 21 is a circular platform. The left mold 22 and the right mold 23 are provided with forming grooves 24 that surround the outer side of the blank placement platform 21 and cooperate with the blank placement platform 21 to form a glass bottle blowing molding cavity. The left mold 22 is provided with a protrusion 25, and the right mold 23 is provided with a recess 26 that cooperates with the protrusion 25. When the blank placement platform 21, the left mold 22 and the right mold 23 are closed, the protrusion 25 and the recess 26 cooperate to guide and insert for positioning.

[0050] When the mold is closed, the molding grooves 24 of the left mold 22 and the right mold 23 surround the outside of the blank placement platform 21. The three together form a closed cavity that matches the shape of the target glass bottle, providing space for subsequent blow molding. The blank placement platform 21 carries the glass blank, ensuring that the blank is in the center of the cavity and avoiding molding deviation.

[0051] Mold Closing Positioning Calibration: The protrusion 25 of the left mold 22 and the recess 26 of the right mold 23 form a guiding interlocking fit during the mold closing process, which can quickly calibrate the relative position of the left mold 22 and the right mold 23, eliminate mold splicing gaps, ensure the consistency of the cavity shape, and reduce glass bottle molding defects. The circular blank placement platform 21 is suitable for the load-bearing requirements of most glass bottle blanks, and the precise design of the forming groove 24 can reproduce the external details of the glass bottle (such as the bottle mouth and the curvature of the bottle body); the positioning structure of the protrusion 25 and the recess 26 greatly improves the mold closing efficiency and reduces the product scrap rate caused by mold misalignment.

[0052] The disassembly and assembly structure A3 includes four symmetrically arranged insert rods 31 fixed to the top of the central platform 11 and a sleeve 32 fixed to the bottom of the billet placement platform 21 and inserted into the insert rods 31. Two threaded rods A33 are inserted through the two symmetrically arranged insert rods 31 and sleeve 32. Two nuts A34 threaded to the two ends of the threaded rods A33 fix the two inserted insert rods 31 and sleeve 32 together, thereby installing the billet placement platform 21 on the central platform 11. The billet placement platform 21 can be removed and replaced by removing the threaded rods A33 and nuts A34.

[0053] During installation, the sleeve 32 is aligned with the insert rod 31 and inserted to form a preliminary position. Then, the external threaded rod A33 is passed through the symmetrical insert rod 31 and sleeve 32, and locked with nuts A34 at both ends to fix the blank placement platform 21 to the central platform 11. During disassembly, simply unscrew the nuts A34 and pull out the external threaded rod A33 to remove the blank placement platform 21 for replacement. No complicated tools are required, and a single person can complete the mold change operation. It is compatible with blank placement platforms 21 of different diameters (corresponding to different specifications of glass bottles), significantly shortening the mold change time and improving the equipment's adaptability to multi-category production.

[0054] The disassembly and assembly structure B4 includes a connecting seat 41, four external threaded rods B42 fixed at the four corners of the connecting seat 41, an inverted T-shaped bracket 43 fixed at the top of the movable seat 12, and two right-angle plates 44 fixed on the inverted T-shaped bracket 43. After the four external threaded rods B42 pass through the two right-angle plates 44 respectively, the connecting seat 41 is locked and fixed to the two right-angle plates 44 by nuts B45 screwed to the external threaded rods B42, and then fixed to the movable seat 12. The connecting seat 41 on the disassembly and assembly structure B4 is fixed to the left mold 22 or the right mold 23. The left mold 22 or the right mold 23 can be removed by removing the nuts B45.

[0055] During installation, the external threaded rod B42 of the connecting seat 41 is passed through the pre-drilled hole in the right-angle plate 44, and the nut B45 is tightened to lock it in place, thus securing the connecting seat 41 to the inverted T-shaped bracket 43 (fixed to the movable seat 12) and fixing the left mold 22 or the right mold 23. During disassembly, the connecting seat 41 and the right-angle plate 44 are separated by unscrewing the nut B45, allowing for the replacement of the left / right mold 23. The modular design allows for independent assembly and disassembly of the left mold 22 and right mold 23, enabling individual replacement of worn molds and reducing spare parts costs. Simultaneously, it adapts to left / right molds 23 with different cavities, meeting the production needs of special-shaped glass bottles such as round and square ones.

[0056] One side of the U-shaped bracket 13 is provided with mounting slots 17 located on both sides of the central platform 11. The slotted photoelectric switch 5 is fixed on the switch mounting base 51. The switch mounting base 51 is fixed to the side of the U-shaped bracket 13 by screws that pass through the switch mounting base 51 and are screwed into the mounting slots 17. The two movable seats 12 are respectively fixed with strip-shaped limit plates 18 by screws. When the two movable seats 12 move the strip-shaped limit plates 18 to the sensing slot of the slotted photoelectric switch 5, they will block the light of the slotted photoelectric switch 5, causing the photoelectric switch to generate a level trigger signal, thereby realizing the detection of the position of the movable seat 12.

[0057] The slotted photoelectric switch 5 is fixed to the switch mounting base 51. It is engaged with the mounting groove 17 of the U-shaped bracket 13 by screws. The switch position can be adjusted by sliding along the mounting groove 17 to adapt to the detection requirements of molds of different specifications.

[0058] For slotted photoelectric switches 5, you can choose Omron E3Z-G series (such as E3Z-G81) or Keyence PS-201 series, select NPN / PNP output type, adapt to the signal requirements of equipment control system, and have a sensing distance of 5-10mm to meet the limit plate detection requirements.

[0059] When the forward and reverse threaded screw module 1 drives the left mold 22 and right mold 23 to move towards the blank placement platform 21 (mold closing action), the one of the two sets of slotted photoelectric switches 5 responsible for mold closing detection will determine whether the mold is completely closed to the preset forming position by sensing the strip-shaped limiting piece 18 of the left mold 22 / right mold 23. Only when the mold closing is detected to be in place will the equipment trigger the subsequent blow molding process (such as introducing high-pressure gas to blow mold the blank). If it is not in place (such as mold offset or excessive gap), the photoelectric switch will give feedback of not being in place, and the equipment will pause the operation to avoid glass bottles being damaged due to improper mold closing. To prevent molding defects (such as burrs, shape deviations), and even mold collision damage; after the glass bottle is blow-molded, when the forward and reverse threaded screw module 1 drives the left mold 22 and right mold 23 to move away from each other (mold opening action), the one of the two sets of slotted photoelectric switches 5 responsible for mold opening detection will sense whether the left mold 22 / right mold 23 has moved to the preset maximum opening distance position (i.e., mold opening in place); only when "mold opening in place" is detected will the equipment trigger the material handling mechanism (such as an automated robotic arm) to ensure that there is enough space to remove the molded glass bottle and avoid collision with the mold during demolding. At the same time, the mold opening in place signal The signal also serves as a stop command for the forward and reverse threaded screw module 1, preventing over-driving of the module and causing the left mold 22 / right mold 23 to exceed its stroke, thus protecting the screw, moving seat 12, and other mechanical structures. The equipment can be replaced with different specifications of blank placement platform 21, left mold 22, and right mold 23 (adapting to glass bottles of different sizes / shapes) via disassembly structures A3 and B4. The slotted photoelectric switch 5, with its "two symmetrical sets, two per set" installation method, allows for fine-tuning of the position of the slotted photoelectric switch 5 after mold replacement by disassembling or installing screws in the mounting slot 17 and switch mounting seat 51. This ensures that the device can still accurately sense the "mold closing / opening positioning point" of the new mold, avoiding detection failure due to changes in mold specifications. It also ensures that the detection accuracy of the equipment does not decrease in rapid mold change scenarios, meeting the design goal of fast and efficient demolding. The detection signal of the slotted photoelectric switch 5 will be connected to the equipment control system to form a closed-loop protection. If the "positioning signal" is not detected when the mold is closed, the system will stop blow molding and sound an alarm to prevent waste of blank or mold misalignment and wear. If the "positioning signal" is not detected when the mold is opened, the system will prohibit the demolding mechanism from operating to prevent forced removal of parts that could cause glass bottle breakage or mold jamming.

[0060] Non-contact detection avoids mechanical wear, achieves millimeter-level accuracy, and ensures consistency in mold opening and closing positions; two sets of symmetrical designs adapt to independent detection of the left and right molds 23, preventing production accidents caused by one side of the mold not being in place; the adjustment function of the mounting slot 17 allows the switch position to be adjusted synchronously with the mold specifications, ensuring that the detection accuracy does not decrease after mold change.

[0061] The workflow of this glass bottle mold quick and efficient demolding auxiliary fixture is as follows:

[0062] Preparation stage: According to production needs, install the appropriate blank placement platform 21 and left mold 22 / right mold 23 through disassembly and assembly structure A3 and disassembly and assembly structure B4, adjust the position of slotted photoelectric switch 5, and set the mold closing and opening monitoring points.

[0063] Mold closing stage: Servo reduction motor 15 drives the positive and negative threaded screws 14 to rotate, and the moving seat 12 drives the left / right molds 23 to move closer to the center; the protrusion 25 of the left mold 22 and the concave part 26 of the right mold 23 guide and position. When the mold is closed, the strip-shaped limit piece 18 triggers the mold closing detection photoelectric switch. After the system confirms, the blow molding process is started (high pressure gas is introduced to make the blank fit the cavity to form).

[0064] Mold opening stage: After blow molding is completed, the servo reduction motor 15 drives in reverse, and the moving seat 12 drives the left / right mold 23 to move away from each other; when the mold is in place, the strip limit plate 18 triggers the mold opening detection photoelectric switch, and the system instructs the material handling mechanism (such as a robot arm) to take out the formed glass bottle.

[0065] Mold change stage: When it is necessary to switch products, the blank placement platform 21 and the left / right mold 23 can be quickly replaced by disassembling and assembling structures A3 and B. The position of the photoelectric switch can be finely adjusted to enter the production of the next specification.

[0066] This glass bottle mold features a fast and efficient demolding auxiliary fixture. The synchronous opening and closing of the mold by the forward and reverse threaded screw module 1, the rapid mold change via the disassembly and assembly structure, and the precise detection by the photoelectric switch—these three elements work together to shorten the equipment's production cycle and increase single-shift output. Simultaneously, they reduce manual intervention and lower labor costs. The dual calibration of the mold closing and positioning structure and the photoelectric switch eliminates mold gaps and positional deviations, significantly reducing defects such as burrs and shape deviations in glass bottles. The closed-loop protection function prevents product scrap and equipment damage caused by misoperation. The modular component design allows for rapid switching between the production of glass bottles of different specifications and shapes without requiring a complete equipment replacement, meeting the market demand for small-batch, multi-category production and enhancing enterprise production flexibility.

[0067] 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 quick and efficient demolding auxiliary fixture for glass bottle molds, characterized in that, include: The forward and reverse threaded screw module (1) is used to drive two moving seats (12) to move closer to each other or further apart; The glass bottle blowing molding mold (2) includes a blank placement platform (21), a left mold (22) and a right mold (23). The blank placement platform (21) is detachably and replaceably installed on the central platform (11) of the positive and negative threaded screw module (1) through the disassembly structure A (3). The left mold (22) and the right mold (23) are detachably and replaceably installed on two movable seats (12) through the disassembly structure B (4). The slotted photoelectric switches (5) are symmetrically installed in two groups on the positive and negative threaded screw module (1). Each group is equipped with two slotted photoelectric switches (5). The two slotted photoelectric switches (5) are used for the left mold (22), right mold (23) and blank placement platform (21) to detect the mold closing position and the mold opening position, respectively. By using disassembly and assembly structure A (3) and disassembly and assembly structure B (4), different blank placement platforms (21), left mold (22) and right mold (23) can be replaced, so as to replace different glass bottle blowing molds (2). The opening and closing process of the glass bottle blowing mold (2) is accurately detected and the status feedback is given by the slotted photoelectric switch (5).

2. The glass bottle mold quick and efficient demolding auxiliary fixture according to claim 1, characterized in that: The forward and reverse threaded screw module (1) includes a U-shaped bracket (13), a central platform (11) located at the center of the U-shaped bracket (13), a forward and reverse threaded screw (14) rotatably connected to the U-shaped bracket (13) and the central platform (11), a servo geared motor (15) that drives the forward and reverse threaded screw (14) to rotate, and two guide rods (16) connecting the U-shaped bracket (13) and the central platform (11) and located on both sides of the forward and reverse threaded screw (14); two movable seats (12) are respectively connected to the forward and reverse threaded screw (14) through threaded screw nuts and located on both sides of the central platform (11), and the two movable seats (12) also cooperate with the guide rods (16) for guidance and sliding.

3. The glass bottle mold quick and efficient demolding auxiliary fixture according to claim 2, characterized in that: The disassembly and assembly structure A (3) includes four insert rods (31) fixed on the top of the central platform (11) and arranged symmetrically, and a sleeve (32) fixed on the bottom of the billet placement platform (21) and inserted into the insert rods (31); two insert rods (31) and sleeve (32) arranged symmetrically are inserted with external thread rods A (33), and two nuts A (34) threaded at both ends of the external thread rods A (33) fix the two inserted insert rods (31) and sleeve (32) together, thereby installing the billet placement platform (21) on the central platform (11). The billet placement platform (21) can be removed and replaced by removing the external thread rods A (33) and nuts A (34).

4. The glass bottle mold quick and efficient demolding auxiliary fixture according to claim 1, characterized in that: The disassembly and assembly structure B (4) includes a connecting seat (41), four external threaded rods B (42) fixed at the four corners of the connecting seat (41), an inverted T-shaped bracket (43) fixed at the top of the movable seat (12), and two right-angle plates (44) fixed on the inverted T-shaped bracket (43). After the four external threaded rods B (42) pass through the two right-angle plates (44) respectively, the connecting seat (41) is locked and fixed on the two right-angle plates (44) by the nuts B (45) screwed to the external threaded rods B (42), and then fixed on the movable seat (12). The connecting seat (41) on the disassembly and assembly structure B (4) is fixed on the left mold (22) or the right mold (23). The left mold (22) or the right mold (23) can be removed by removing the nuts B (45).

5. The glass bottle mold quick and efficient demolding auxiliary fixture according to claim 1, characterized in that: The blank placement platform (21) is a circular platform. The left mold (22) and the right mold (23) are provided with forming grooves (24) that surround the outer side of the blank placement platform (21) and cooperate with the blank placement platform (21) to form a glass bottle blowing molding cavity.

6. The glass bottle mold quick and efficient demolding auxiliary fixture according to claim 5, characterized in that: The left mold (22) has a protrusion (25), and the right mold (23) has a recess (26) that mates with the protrusion (25). When the blank placement platform (21), the left mold (22) and the right mold (23) are closed, the protrusion (25) and the recess (26) mate to guide and position each other.

7. The glass bottle mold quick and efficient demolding auxiliary fixture according to claim 2, characterized in that: The U-shaped bracket (13) has mounting slots (17) on one side located on both sides of the central platform (11). The slot-shaped photoelectric switch (5) is fixed on the switch mounting base (51). The switch mounting base (51) is fixed to the side of the U-shaped bracket (13) by screws that pass through the switch mounting base (51) and are screwed into the mounting slots (17).

8. The glass bottle mold quick and efficient demolding auxiliary fixture according to claim 7, characterized in that: Two movable seats (12) are respectively fixed with strip-shaped limit plates (18) by screws. When the two movable seats (12) move the strip-shaped limit plates (18) to the sensing slot of the slot-shaped photoelectric switch (5), they will block the light of the slot-shaped photoelectric switch (5), causing the photoelectric switch to generate a level trigger signal, thereby realizing the detection of the position of the movable seat (12).

Images