Plastic bottle blowing mold device capable of quickly changing mold

By designing a fixing, positioning, bidirectional, and limiting mechanism, combined with an electric push rod drive, rapid mold changing for plastic bottle blow molding molds was achieved, solving the problem of inconvenient mold assembly and disassembly, and improving production efficiency.

CN223948486UActive Publication Date: 2026-02-27CHANGSHU SHINE PLASTIC IND
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Patent Information

Application Number
CN202520341634.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2026-02-27
Estimated Expiration
2035-02-28

AI Technical Summary

Technical Problem

Existing plastic bottle blow molding molds are not easy to disassemble and assemble, making mold replacement and maintenance inconvenient.

Method used

A plastic bottle blow molding die device was designed, which includes a fixing mechanism, a positioning mechanism, a bidirectional mechanism, a gear mechanism, and a limiting mechanism. The moving mold base is driven to slide and close the mold by an electric push rod, and the mold can be easily disassembled and assembled by the cooperation of clamps, inserts, positioning blocks, gears, and springs.

Benefits of technology

It enables quick replacement and maintenance of molding dies, facilitating efficient use of the molds.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of plastic bottle processing equipment, and discloses a plastic bottle blowing mold device capable of quickly changing molds, which comprises a base, a vertical plate is fixedly mounted on the left side of the top of the base, a fixed mold seat is fixedly mounted on the right side of the top of the base, and a movable mold seat is slidably mounted on the top of the base and is positioned between the fixed mold seat and the vertical plate; an electric push rod is fixedly mounted on the left side of the vertical plate, the right end of an output shaft of the electric push rod is fixedly connected with the left side of the movable mold base, mounting grooves are formed in the adjacent sides of the fixed mold base and the movable mold base, and fixing mechanisms are arranged in the mounting grooves. Compared with the prior art, the forming mold has the following advantages and effects that by arranging the limiting mechanism and the fixing mechanism, the forming mold can be limited, fixed or released in the vertical direction, the purpose of clamping, fixing or releasing the forming mold in the horizontal direction can be achieved, and then the forming mold can be conveniently disassembled and assembled; and maintenance and replacement are facilitated.
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Description

TECHNICAL FIELD

[0001] The application relates to the technical field of plastic bottle processing equipment, in particular to a plastic bottle blow molding mold device capable of rapid mold replacement. BACKGROUND

[0002] The blow-molded plastic bottle is used more and more widely in modern life, and stretch blow molding is an important method for producing plastic bottles, and the stretch blow molding process refers to a kind of blow molding process through biaxial orientation stretching.

[0003] According to the search, the patent document with the authorized announcement number CN220808471U discloses a plastic bottle blow molding mold; the plastic bottle blow molding mold comprises a bottom plate, a mounting plate and an auxiliary device, the auxiliary device comprises a fixing seat, a fixed mold seat, a movable mold seat, a first conduit, a first flange plate, a second conduit, a second flange plate, a guide assembly and a driving assembly, the driving assembly and the guide assembly are matched during processing, the movable mold seat is matched with the fixed mold seat, then the blow molding equipment acts, the feeding pipe is inserted into the top circular feeding port, the raw material is injected and the compressed air is introduced, the blow molding processing is carried out, after the completion, the cooling liquid is introduced into the fixed mold seat and the movable mold seat through the first conduit and the second conduit respectively, the cooling liquid can exchange heat with the fixed mold seat and the movable mold seat during the circulation, and the heat is taken away, so that the internal product can be quickly cooled and shaped, and when the plastic bottle is blow molded and formed, the cooling and shaping can be accelerated, the next blow molding processing can be quickly carried out, and the production and processing are more favorable.

[0004] In actual use, it is found that the existing plastic bottle blow molding mold cannot conveniently disassemble and assemble the mold, leading to the problem that the mold cannot be conveniently replaced or maintained, therefore, the plastic bottle blow molding mold device capable of rapid mold replacement is provided to solve the above problems. Content of the utility model

[0005] The application aims to solve the problems in the prior art that the mold cannot be conveniently disassembled and assembled, leading to the problem that the mold cannot be conveniently replaced or maintained, and therefore proposes the plastic bottle blow molding mold device capable of rapid mold replacement.

[0006] The above technical purpose of the application is achieved by the following technical scheme: a plastic bottle blow molding mold device capable of rapid mold replacement, comprising a base, a vertical plate is fixedly installed on the top left side of the base, a fixed mold seat is fixedly installed on the top right side of the base, a movable mold seat is slidingly installed on the top of the base, the movable mold seat is located between the fixed mold seat and the vertical plate, an electric push rod is fixedly installed on the left side of the vertical plate, the output shaft right end of the electric push rod is fixedly connected with the left side of the movable mold seat, the side adjacent to the fixed mold seat and the movable mold seat is provided with a mounting groove, and a fixing mechanism is arranged in the mounting groove; a function cavity is formed in the fixed mold seat and the movable mold seat, a forming mold is arranged in the mounting groove, a positioning mechanism is arranged between the forming mold and the mounting groove, a bidirectional mechanism is arranged in the function cavity, a plate hole is formed in the top of the fixed mold seat and the movable mold seat, the plate hole is communicated with the corresponding function cavity, a seat hole is formed between the corresponding mounting groove and the function cavity, and a limiting mechanism is arranged above the fixed mold seat and the movable mold seat.

[0007] Further, the fixing mechanism comprises two corresponding clamping seats, two corresponding insertion blocks and two corresponding insertion grooves, two clamping seats are slidingly installed on the inner walls of the sides away from each other of the two mounting grooves, the clamping seats are located on the front side and the rear side of the corresponding forming mold, the insertion block is fixedly installed on the side close to the forming mold of the clamping seat, the insertion grooves are formed on the front side and the rear side of the forming mold, and the insertion block is clamped with the corresponding insertion groove.

[0008] By adopting the above technical scheme, the clamping seat can drive the insertion block to be inserted into the insertion groove, and the purpose of limiting and fixing the forming mold in the horizontal direction is achieved.

[0009] Further, the positioning mechanism comprises a positioning block and a positioning groove, the positioning block is arranged on the inner wall of the bottom of the mounting groove, the positioning groove is formed on the bottom of the forming mold, and the positioning block is clamped with the corresponding positioning groove.

[0010] By adopting the above technical scheme, the positioning groove can be accurately clamped with the positioning block by arranging the positioning mechanism, and the purpose of preliminary positioning of the forming mold in the mounting groove is achieved.

[0011] Further, the bidirectional mechanism comprises a bidirectional screw rod and two corresponding screw rod seats, the same bidirectional screw rod is rotatably installed on the front side and the rear side of the inner wall of the function cavity, the two screw rod seats are threadedly sleeved on the bidirectional screw rod, the screw rod seats are slidingly connected with the corresponding seat holes, the screw rod seat close to the forming mold is fixedly connected with the clamping seat, and a gear mechanism is arranged between the bidirectional screw rod and the plate hole.

[0012] By adopting the above technical scheme, the bidirectional screw rod can drive the two corresponding screw rod seats to move to the side close to or away from each other, and the purpose of driving the two corresponding clamping seats to move to the side close to or away from each other is achieved.

[0013] The further setting of the present application is that the tooth driving mechanism comprises a rack plate and a gear, the rack plate is slidingly installed in the plate hole, the gear is fixedly sleeved on the bidirectional screw rod, and the rack plate is engaged with the gear.

[0014] By adopting the above technical scheme, the tooth driving mechanism is arranged, so that the up-down movement of the limiting plate can drive the bidirectional screw rod to rotate.

[0015] The further setting of the present application is that the tooth driving mechanism further comprises a sliding plate and a spring, the sliding plate is fixedly installed on one side of the rack plate, and the same spring is fixedly installed on the top of the sliding plate and the inner wall of the corresponding function cavity.

[0016] By adopting the above technical scheme, the tooth driving mechanism is arranged, so that the spring can drive the reset plate to move downward through the elastic force, and the purpose of resetting the rack plate is achieved.

[0017] The further setting of the present application is that the limiting mechanism comprises a limiting plate, a limiting block and a limiting groove, the limiting plate is fixedly installed on the top of the rack plate, the limiting block is fixedly installed on the bottom of the limiting plate, the limiting groove is formed on the top of the forming die, the limiting block is clamped with the corresponding limiting groove, and the pull knob is arranged on the top of the limiting plate.

[0018] By adopting the above technical scheme, the limiting mechanism is arranged, so that the limiting block can be clamped with the limiting groove, and the purpose of limiting and fixing the forming groove in the vertical direction is achieved.

[0019] The further setting of the present application is that the same fixing rod is rotatably installed on the front side inner wall and the rear side inner wall of the function cavity, the fixing rod is located outside the bidirectional screw rod, and the screw rod seat is slidingly sleeved on the fixing rod.

[0020] By adopting the above technical scheme, the fixing rod is arranged, so that the screw rod seat moves more stably.

[0021] The beneficial effects of the present application are:

[0022] (1) Through the cooperation of the pull knob, the limiting plate, the limiting block, the limiting groove, the rack plate, the reset plate and the spring, the limiting block and the limiting groove can be clamped and limited or separated through the upward pulling or loosening of the pull knob and the spring elastic force, and the purpose of limiting and fixing or releasing the forming die in the vertical direction is achieved.

[0023] (2) Through the cooperation of the rack plate, the gear, the bidirectional screw rod, the screw rod seat, the clamping seat, the plug and the plug groove, the rack plate can drive the bidirectional screw rod to rotate, the plug and the plug groove can be clamped and fixed or separated, the purpose of clamping and fixing or releasing the forming die in the horizontal direction is achieved, and the purpose of conveniently disassembling, maintaining and replacing the forming die is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and all other drawings obtained by those of ordinary skill in the art without creative effort based on these drawings are within the protection scope of the present application.

[0025] Figure 1 is a perspective structural schematic diagram of a plastic bottle blow molding mold device with quick mold changing according to the present application;

[0026] Figure 2 is a top view structural schematic diagram of a plastic bottle blow molding mold device with quick mold changing according to the present application;

[0027] Figure 3 is an internal structural schematic diagram of a fixed mold base of a plastic bottle blow molding mold device with quick mold changing according to the present application;

[0028] Figure 4 is a structural schematic diagram of A of a plastic bottle blow molding mold device with quick mold changing according to the present application.

[0029] In the figure: 1, base; 2, vertical plate; 3, installation groove; 4, forming mold; 5, bidirectional screw rod; 6, plate hole; 7, sliding plate; 8, limiting plate; 9, seat hole; 10, fixed rod; 101, fixed mold base; 102, movable mold base; 201, electric push rod; 301, clamping seat; 302, plug; 303, plug groove; 401, positioning block; 501, screw rod seat; 601, rack plate; 602, gear; 701, spring; 801, limiting block; 802, pull knob. DETAILED DESCRIPTION

[0030] The technical solutions of the present application will be described clearly and completely in combination with specific embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present application.

[0031] Reference Figures 1-4The application provides a plastic bottle blow molding mold device capable of rapid mold replacement, which comprises a base 1, a vertical plate 2 is fixedly installed on the left side of the top of the base 1, a fixed mold seat 101 is fixedly installed on the right side of the top of the base 1, a movable mold seat 102 is slidingly installed on the top of the base 1, the movable mold seat 102 is located between the fixed mold seat 101 and the vertical plate 2, an electric push rod 201 is fixedly installed on the left side of the vertical plate 2, the output shaft right end of the electric push rod 201 is fixedly connected with the left side of the movable mold seat 102, installation grooves 3 are formed in the sides adjacent to the fixed mold seat 101 and the movable mold seat 102, and fixing mechanisms are arranged in the installation grooves 3; function cavities are formed in the fixed mold seat 101 and the movable mold seat 102, a forming mold 4 is arranged in the installation groove 3, a positioning mechanism is arranged between the forming mold 4 and the installation groove 3, bidirectional mechanisms are arranged in the function cavities, plate holes 6 are formed in the top of the fixed mold seat 101 and the movable mold seat 102, the plate holes 6 are communicated with corresponding function cavities, seat holes 9 are formed between the function cavities and the corresponding installation grooves 3, and limiting mechanisms are arranged above the fixed mold seat 101 and the movable mold seat 102.

[0032] Specifically, the fixing mechanism comprises two corresponding clamping seats 301, two corresponding plug blocks 302 and two corresponding plug grooves 303, two clamping seats 301 are slidingly installed on the inner walls of the sides away from each other of the two installation grooves 3, the clamping seats 301 are located on the front side and the back side of the corresponding forming mold 4, the plug block 302 is fixedly installed on the side close to the forming mold 4 of the clamping seat 301, the plug grooves 303 are formed on the front side and the back side of the forming mold 4, and the plug block 302 is clamped with the corresponding plug groove 303.

[0033] Specifically, the positioning mechanism comprises a positioning block 401 and a positioning groove, the positioning block 401 is arranged on the inner wall of the bottom of the installation groove 3, the positioning groove is formed on the bottom of the forming mold 4, and the positioning block 401 is clamped with the corresponding positioning groove.

[0034] Specifically, the bidirectional mechanism comprises a bidirectional screw rod 5 and two corresponding screw rod seats 501, the same bidirectional screw rod 5 is rotatably installed on the front side and the back side of the function cavity, the two screw rod seats 501 are threadedly arranged on the bidirectional screw rod 5, the screw rod seats 501 are slidingly connected with the corresponding seat holes 9, the screw rod seats 501 are fixedly connected with the clamping seats 301 on the sides close to the forming mold 4, and a tooth driving mechanism is arranged between the bidirectional screw rod 5 and the plate hole 6.

[0035] Specifically, the tooth driving mechanism comprises a rack plate 601 and a gear 602, the rack plate 601 is slidingly installed in the plate hole 6, the gear 602 is fixedly arranged on the bidirectional screw rod 5, and the rack plate 601 is engaged with the gear 602.

[0036] Specifically, the tooth driving mechanism further comprises a sliding plate 7 and a spring 701, the sliding plate 7 is fixedly installed on one side of the rack plate 601, and the same spring 701 is fixedly installed on the top of the inner wall of the corresponding function cavity on the top of the sliding plate 7.

[0037] Specifically, the limiting mechanism comprises a limiting plate 8, a limiting block 801 and a limiting groove, the top of the rack plate 601 is fixedly installed with the limiting plate 8, the bottom of the limiting plate 8 is fixedly installed with the limiting block 801, the top of the forming die 4 is provided with the limiting groove, the limiting block 801 is clamped with the corresponding limiting groove, and the top of the limiting plate 8 is provided with a pull knob 802.

[0038] Specifically, the same fixed rod 10 is rotationally installed on the front side inner wall and the rear side inner wall of the function cavity, the fixed rod 10 is located outside the bidirectional lead screw 5, and the screw rod seat 501 is slidingly sleeved on the fixed rod 10.

[0039] In the application, when the plastic bottle blow molding die device is running, the electric push rod 201 serves as a power source and pushes the movable die seat 102 to accurately slide along the sliding track on the base 1, so that the movable die seat 102 is close to the fixed die seat 101, the clamping operation can be completed, and the purpose of preparing for the blow molding of the plastic bottle is achieved; when the forming die 4 is replaced, the operator applies an external force to the pull knob 802 to pull up the limiting plate 8, so that the limiting block 801 is separated from the limiting groove in the top of the forming die 4, and the purpose of releasing the constraint of the forming die 4 in the vertical direction is achieved; at the same time, the limiting plate 8 drives the rack plate 601 connected thereto to slide upwards in the plate hole 6, the rack plate 601 is engaged with the gear 602, the gear transmission principle is used to drive the gear 602 to rotate; since the gear 602 is fixedly sleeved on the bidirectional lead screw 5, the bidirectional lead screw 5 is synchronously rotated; under the action of screw transmission, the screw rod seat 501 on the bidirectional lead screw 5 slides along the axial direction of the bidirectional lead screw 5, the screw rod seat 501 is fixedly connected with the clamping seat 301, the clamping seat 301 moves, the plug-in block 302 can be pulled out of the plug-in groove 303 of the forming die 4, and the purpose of releasing the clamping and fixing of the forming die 4 in the horizontal direction is achieved; at this time, the operator can smoothly take out the forming die 4 from the installation groove 3.

[0040] When the new forming die 4 is installed, firstly, the positioning groove at the bottom of the forming die 4 is accurately clamped with the positioning block 401 at the bottom of the installation slot 3, the preliminary positioning of the forming die 4 in the installation slot 3 can be realized by using the positioning mechanism, the accuracy of the installation position is ensured; then the limiting plate 8 is lowered, under the elastic reset action of the spring 701, the spring 701 drives the sliding plate 7 to move downward, the sliding plate 7 is fixedly connected with the rack plate 601, so that the rack plate 601 slides downward in the plate hole 6; the rack plate 601 is meshed and driven with the gear 602 again, so that the gear 602 rotates reversely, and then drives the bidirectional screw rod 5 to reverse; when the bidirectional screw rod 5 reverses, the screw rod base 501 slides reversely along the bidirectional screw rod 5, drives the clamping base 301 to move, can make the plug block 302 re-clamp into the plug slot 303 of the forming die 4, can realize the clamping and fixing of the forming die 4 in the horizontal direction; at the same time, the limiting block 801 clamps into the limiting slot at the top of the forming die 4, can realize the limiting of the forming die 4 in the vertical direction, ensures the stability of the forming die 4 in the blow molding process, and then can realize the convenient disassembly and assembly of the forming die 4, is convenient for maintenance and replacement; in the whole process, the fixed rod 10 serves as a guide and support part, accurately guides and stably supports the sliding of the screw rod base 501, ensures that the screw rod base 501 slides smoothly and accurately on the bidirectional screw rod 5; after the movable die seat 102 is combined with the fixed die seat 101, the blow molding of the plastic bottle can be carried out.

Claims

1. A quick change plastic bottle blow mold apparatus, comprising: The utility model provides a moulding device, including base (1), the left side fixed mounting of base (1) top has riser (2), the right side fixed mounting of base (1) top has fixed die holder (101), base (1) top sliding installation has movable die holder (102), movable die holder (102) is located between fixed die holder (101) and riser (2), the left side fixed mounting of riser (2) has electric push rod (201), the output shaft right -hand end of electric push rod (201) is fixedly connected with movable die holder (102) left side, the side of fixed die holder (101) and movable die holder (102) adjacent is all provided with installation groove (3), installation groove (3) is provided with fixed mechanism in, The utility model provides a moulding device, including base (1), the left side fixed mounting of base (1) top has riser (2), the right side fixed mounting of base (1) top has fixed die holder (101), base (1) top sliding installation has movable die holder (102), movable die holder (102) is located between fixed die holder (101) and riser (2), the left side fixed mounting of riser (2) has electric push rod (201), the output shaft right -hand end of electric push rod (201) is fixedly connected with movable die holder (102) left side, the side of fixed die holder (101) and movable die holder (102) adjacent is all provided with installation groove (3), installation groove (3) is provided with fixed mechanism in, 2. A quick change plastic bottle blow mold apparatus as described in claim 1, wherein: The utility model provides a moulding device, including base (1), the left side fixed mounting of base (1) top has riser (2), the right side fixed mounting of base (1) top has fixed die holder (101), base (1) top sliding installation has movable die holder (102), movable die holder (102) is located between fixed die holder (101) and riser (2), the left side fixed mounting of riser (2) has electric push rod (201), the output shaft right -hand end of electric push rod (201) is fixedly connected with movable die holder (102) left side, the side of fixed die holder (101) and movable die holder (102) adjacent is all provided with installation groove (3), installation groove (3) is provided with fixed mechanism in, 3. The quick changeover plastic bottle blow mold apparatus of claim 1, wherein: The utility model provides a moulding device, including base (1), the left side fixed mounting of base (1) top has riser (2), the right side fixed mounting of base (1) top has fixed die holder (101), base (1) top sliding installation has movable die holder (102), movable die holder (102) is located between fixed die holder (101) and riser (2), the left side fixed mounting of riser (2) has electric push rod (201), the output shaft right -hand end of electric push rod (201) is fixedly connected with movable die holder (102) left side, the side of fixed die holder (101) and movable die holder (102) adjacent is all provided with installation groove (3), installation groove (3) is provided with fixed mechanism in, 4. The quick changeover plastic bottle blow mold apparatus of claim 1, wherein: The utility model provides a moulding device, including base (1), the left side fixed mounting of base (1) top has riser (2), the right side fixed mounting of base (1) top has fixed die holder (101), base (1) top sliding installation has movable die holder (102), movable die holder (102) is located between fixed die holder (101) and riser (2), the left side fixed mounting of riser (2) has electric push rod (201), the output shaft right -hand end of electric push rod (201) is fixedly connected with movable die holder (102) left side, the side of fixed die holder (101) and movable die holder (102) adjacent is all provided with installation groove (3), installation groove (3) is provided with fixed mechanism in, 5. A quick change plastic bottle blow mold apparatus as defined in claim 4 wherein: The utility model provides a moulding device, including base (1), the left side fixed mounting of base (1) top has riser (2), the right side fixed mounting of base (1) top has fixed die holder (101), base (1) top sliding installation has movable die holder (102), movable die holder (102) is located between fixed die holder (101) and riser (2), the left side fixed mounting of riser (2) has electric push rod (201), the output shaft right -hand end of electric push rod (201) is fixedly connected with movable die holder (102) left side, the side of fixed die holder (101) and movable die holder (102) adjacent is all provided with installation groove (3), installation groove (3) is provided with fixed mechanism in, 6. A quick change plastic bottle blow mold apparatus as defined in claim 5 wherein: The gear mechanism further comprises a sliding plate (7) and a spring (701), one side of the rack plate (601) is fixedly installed with the sliding plate (7), and the top of the sliding plate (7) is fixedly installed with the same spring (701) on the inner wall of the top of the corresponding function cavity.

7. The quick change plastic bottle blow mold apparatus of claim 5, wherein: The limiting mechanism comprises a limiting plate (8), a limiting block (801) and a limiting groove, the top of the rack plate (601) is fixedly installed with the limiting plate (8), the bottom of the limiting plate (8) is fixedly installed with the limiting block (801), the top of the forming die (4) is provided with the limiting groove, the limiting block (801) is clamped with the corresponding limiting groove, and the top of the limiting plate (8) is provided with a pull knob (802).

8. The quick changeover plastic bottle blow mold apparatus of claim 4, wherein: The front side inner wall and the rear side inner wall of the function cavity are rotatably installed with the same fixing rod (10), the fixing rod (10) is located outside the bidirectional screw rod (5), and the screw rod seat (501) is slidably sleeved on the fixing rod (10).

Citation Information

Patent Citations

  • Plastic bottle blowing mold

    CN220808471U