A glass bottle blow molding device and a demolding method

By designing a glass bottle blow molding device including blow molding table, preform mold, blow mold, blow mold, trigger mechanism, blow pipe and shaping mechanism, the problem of uneven inner wall thickness during blow molding of small-mouth glass bottles is solved, and higher molding accuracy and uniformity are achieved.

CN119750888BActive Publication Date: 2025-06-20ANHUI FENGYANG COUNTY QIANLI GLASSWORK CO LTD
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Patent Information

Application Number
CN202510261354.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2025-06-20
Estimated Expiration
2045-03-06

AI Technical Summary

Technical Problem

The prior art During the blow molding process of small-mouth glass bottles, the thickness of the inner wall of the mouth of the glass bottle may be uneven, affecting the molding quality.

Method used

A glass bottle blow molding device is designed, including a blow molding table, a preform mold, a blow mold, a blow assembly, a trigger mechanism, a blow pipe and a shaping mechanism. By activating the trigger mechanism, the blow-modeling assembly, the blow-blowing tube and the shaping mechanism are triggered in turn to achieve blow-molding of the glass frit and uniform shaping of the bottle mouth.

Benefits of technology

It effectively reduces the problem of inconsistent thickness of the glass bottle mouth, improves the accuracy of blow molding of glass bottles, and ensures the uniformity and smoothness of the finished product.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a glass bottle blow molding device and a demolding method, including a blow molding table and a preforming mold disposed on the blow molding table, further including a gas puffing assembly and a triggering mechanism, both of which are disposed in the blow molding table; a blow pipe is further provided in the preforming mold, and a shaping mechanism is provided on the blow pipe. Through the mutual cooperation among the blow molding table, the preforming mold, the gas puffing assembly, the triggering mechanism, the blow pipe and the shaping mechanism, the triggering mechanism moves to sequentially trigger the rotation of the gas puffing assembly and its docking with the preforming mold, and cooperates with the blow pipe to form an opening in the blank in the preforming mold. After the triggering mechanism triggers the shaping mechanism to move up to the opening, the shaping mechanism rotates and gradually unfolds, so as to shape the opening of the blank, so that the opening is uniform and smooth, reducing the problem that the thickness of the bottle mouth of the glass bottle is inconsistent due to various factors, and improving the precision of the blow molding of the glass bottle.
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Description

Technical Field

[0001] The present invention relates to the technical field of glass product forming equipment, and particularly relates to a glass bottle blow molding device and a demolding method. Background Art

[0002] Glass bottles can be made by various processes, mainly including the blowing method, the pressing method, and the centrifugal casting method; among them, the advantage of blow molding glass is that the molding speed is faster, thinner and lighter glass products can be produced, the production efficiency is higher, and the products are more uniform.

[0003] When a glass bottle is mechanically blow molded, it is also divided into: the blow-blow method, the rotary blow method, the belt blow method, and the press-blow method according to the shape of the glass bottle; among them, the blow-blow method is mostly used to manufacture small-mouth bottles. The first blow molding is carried out in the primary mold to form the mouth part and blow it into a prototype, and then it is transferred to the forming mold for the second blow molding. For convenient loading, the primary mold is inverted, so the upper opening is large and the glass material drop is easy to enter the mold; after loading, the puffing head quickly moves to the upper part of the funnel and puffs air into the primary mold. Compressed air forces the glass material into the mouth mold to form the bottle head; in order to fully fill the glass in the mouth mold, the method of evacuating the mouth mold can be used simultaneously to assist puffing; the bottle mouth and the air cavity are formed by the upward movement of the core; the symmetry and position of the air cavity will directly affect the uniformity of the wall thickness of the product. Puffing must be carried out immediately after loading is completed, otherwise the glass will cool and harden and it will be impossible to fill the glass material evenly; once the puffing is over, the core immediately withdraws from the mouth mold, and compressed air will immediately enter the air cavity through the gap between the core and the sleeve, and blow air to make it into a symmetrical prototype. After the primary mold is fully opened, it is rotated 180° in the vertical plane by the flipping mechanism and transferred into the secondary forming mold for secondary blow molding.

[0004] The deficiencies of the prior art are as follows: When blow molding the mouth part of a small-mouth glass bottle, it may affect uneven blowing or other factors, resulting in uneven inner wall thickness of the mouth part of the glass bottle embryo. The uneven manufacturing of the glass bottle mouth does not meet the molding standard and needs to be broken and remanufactured, which has certain deficiencies. Summary of the Invention

[0005] The purpose of the present invention is to provide a glass bottle blow molding device and a demolding method to solve the above deficiencies in the prior art.

[0006] To achieve the above object, the present invention provides the following technical solution: A glass bottle blow molding device, including a blow molding table and a preforming mold disposed on the blow molding table, further including a gas injection assembly and a triggering mechanism, both of which are disposed in the blow molding table; a blow tube is further provided in the preforming mold, and a shaping mechanism is provided on the blow tube; the triggering mechanism has the following three working positions during the lateral movement: the first working position, after the triggering mechanism drives the gas injection assembly to rotate and move downward to dock with the preforming mold, the gas injection assembly communicates with the blow tube, so that the bottom of the blank opens to form an initial model of the bottle mouth; the second working position, the triggering mechanism drives the blow tube to drive the shaping mechanism to move upward, so that an inner cavity can be blow molded inside the blank, and the shaping mechanism moves to the bottle mouth; the third working position, the triggering mechanism drives the shaping mechanism to rotate and gradually unfold, and shapes the mouth of the blank evenly and smoothly.

[0007] As a further description of the above technical solution:

[0008] The triggering mechanism includes a translation plate slidably connected in the blow molding table, and a first wedge block, two second wedge blocks and two third wedge blocks are fixedly connected to the translation plate, and a long strip pressing plate is fixedly connected to one of the second wedge blocks.

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

[0010] The shaping mechanism includes a disc vertically slidably connected to the blow tube, and a plurality of arc-shaped shaping pieces are connected to the disc through a rotating bar, and a plurality of arc-shaped shaping pieces are all connected to the outside of the blow tube through a telescopic connecting rod.

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

[0012] A first support assembly is provided at the bottom of the disc, and the first support assembly includes a hollow support block rotatably connected below the disc. Wedge slots one are respectively opened on both sides of the hollow support block, and the two third wedge blocks respectively contact the corresponding wedge slots one during the movement stroke, and an elastic telescopic rod one is provided between the hollow support block and the blow molding table.

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

[0014] A second support assembly is provided at the bottom of the hollow support block, and the second support assembly includes a support plate. The blow tube is rotatably connected in the support plate. Wedge slots two are respectively opened on both sides of the bottom of the support plate, and the two second wedge blocks respectively contact the corresponding wedge slots two during the movement stroke, and an elastic telescopic rod two is provided between the support plate and the blow molding table.

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

[0016] A long gear is fixedly connected to the blowing pipe, and a driving unit for driving the blowing pipe to rotate is arranged on the hollow support block; the driving unit includes an L-shaped tooth plate slidably connected to the hollow support block, and the long strip pressing plate pushes the L-shaped tooth plate to mesh with the long gear during its movement, and an elastic telescopic rod III is also arranged between the L-shaped tooth plate and the hollow support block.

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

[0018] The air-puffing assembly includes a fixed cylinder fixedly connected to the top of the blow molding table, a long rod is arranged in the fixed cylinder, and an air-puffing head is fixedly connected to the top end of the long rod; a moving block is vertically slidably connected in the blow molding table, a wedge groove III is formed in the moving block, and the wedge block I contacts the wedge groove III during its movement, a ring is rotatably connected to the long rod, and a spring is arranged between the ring and the blow molding table.

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

[0020] A guiding unit is arranged in the fixed cylinder, the guiding unit includes a track groove formed on the inner wall of the fixed cylinder, a guiding rod is fixedly connected to the long rod, and the guiding rod is slidably connected in the track groove.

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

[0022] A complete molding die, a blank-taking and turning claw and a secondary blowing assembly are further arranged on the blow molding table.

[0023] A demolding method for glass bottle blow molding based on the above, specifically includes the following steps:

[0024] S1: After the batching drops into the preforming die, the triggering mechanism moves first to trigger the movement of the air-puffing assembly to dock with the preforming die, and cooperate with the blowing pipe to blow-mold the batching;

[0025] S2: The triggering mechanism continues to move to trigger the blowing pipe and the shaping mechanism to move upward, so that the shaping mechanism moves to the bottle mouth of the blank;

[0026] S3: The triggering mechanism moves again to trigger the shaping mechanism to rotate and gradually open, and shape the bottle mouth of the blank evenly and smoothly.

[0027] In the above technical solution, the beneficial effects of a glass bottle blow molding device and a demolding method provided by the present invention are:

[0028] Through the mutual cooperation among the blow molding table, the preforming die, the gas injection assembly, the triggering mechanism, the blow pipe and the shaping mechanism, the triggering mechanism moves to sequentially trigger the rotation of the gas injection assembly and its docking with the preforming die, and cooperates with the blow pipe to form an opening in the blank in the preforming die. Then, after the triggering mechanism triggers the shaping mechanism to move up to the opening, the shaping mechanism rotates and gradually unfolds, so as to shape the opening of the batching, so that the opening is uniform and smooth, reducing the problem that the bottle mouth thickness of the glass bottle is inconsistent due to various factors, and improving the precision of the blow molding of the glass bottle.

[0029] It should be understood that the foregoing general description and the following detailed description are merely exemplary and explanatory and are not intended to limit the present disclosure.

[0030] This application document provides an overview of various implementations or examples of the technologies described in the present disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technologies. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments recorded in the present invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings.

[0032] Figure 1 It is a schematic diagram of the overall structure provided by an embodiment of the present invention;

[0033] Figure 2 It is a schematic diagram of one set of glass bottle blow molding structures provided by an embodiment of the present invention;

[0034] Figure 3 It is a partial structural cross-sectional view provided by an embodiment of the present invention;

[0035] Figure 4 It is a schematic diagram of the triggering mechanism structure provided by an embodiment of the present invention;

[0036] Figure 5 It is a longitudinal sectional schematic diagram of the gas injection assembly provided by an embodiment of the present invention;

[0037] Figure 6 It is a structural cross-sectional view of the fixed cylinder provided by an embodiment of the present invention;

[0038] Figure 7 It is a schematic diagram of the shaping mechanism structure provided by an embodiment of the present invention;

[0039] Figures 8 - 9 It is a longitudinal sectional schematic diagram of the shaping mechanism structure provided by an embodiment of the present invention;

[0040] Figure 10 is Figure 7 The enlarged view of part A in

[0041] Explanation of the reference numerals in the drawings:

[0042] 1. Blow molding table; 11. Blow pipe; 21. Translation plate; 22. Wedge block 1; 23. Wedge block 2; 24. Wedge block 3; 25. Long strip pressing plate; 31. Disc; 32. Rotating bar; 33. Arc-shaped shaping piece; 34. Telescopic connecting rod; 41. Hollow support block; 42. Wedge groove 1; 43. Elastic telescopic rod 1; 51. Support plate; 52. Wedge groove 2; 53. Elastic telescopic rod 2; 61. Long gear; 62. L-shaped tooth plate; 63. Elastic telescopic rod 3; 71. Fixed cylinder; 72. Long rod; 73. Air-puffing head; 74. Moving block; 75. Wedge groove 3; 76. Ring; 77. Spring; 81. Track groove; 82. Guide rod. Detailed implementation manners

[0043] To make the objectives, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are only a part rather than all of the embodiments of the present disclosure. Based on the described embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present disclosure.

[0044] Please refer to Figures 1 - 10, A glass bottle blow molding device provided in this embodiment includes a blow molding table 1 and a preforming mold disposed on the blow molding table 1. A complete forming mold, a material taking and flipping claw, and a secondary blowing assembly are also disposed on the blow molding table 1. The inside of the blow molding table 1 is hollow, and a maintenance door can be provided on the blow molding table 1. The preforming mold, the complete forming mold, the material taking and flipping claw, and the secondary blowing assembly are all disposed on the top of the blow molding table 1, and the cooperation among the preforming mold, the complete forming mold, the material taking and flipping claw, and the secondary blowing assembly are all existing mature technologies and will not be elaborated here. The preforming mold is set in an inverted shape for convenient loading of blank materials, and the opening at its top is larger than the opening of the complete forming mold. The opening at the top of the complete forming mold is smaller, which is convenient for clamping the bottleneck of the blank material. It also includes a puffing assembly and a triggering mechanism, both of which are disposed in the blow molding table 1; a blowing pipe 11 is also disposed in the preforming mold. The blowing pipe 11 and the puffing assembly are both connected to an external air supply device. The blowing pipe 11 needs to be rotationally and slidably connected in the external air supply device, and a shaping mechanism is disposed on the blowing pipe 11; during the lateral movement of the triggering mechanism, there are the following three working positions: the first working position, after the triggering mechanism drives the puffing assembly to rotate and move downward to dock with the preforming mold, the puffing assembly communicates with the blowing pipe 11, so that the bottom of the blank material opens to form a preliminary model of the bottle mouth; the second working position, the triggering mechanism drives the blowing pipe 11 to drive the shaping mechanism to move upward, so that an inner cavity can be blow molded inside the blank material, and the shaping mechanism moves to the bottle mouth; the third working position, the triggering mechanism drives the shaping mechanism to rotate and gradually unfold, shaping the mouth of the blank material evenly and smoothly. By adding a shaping device, it can make up for the uneven wall thickness of the bottle mouth when the blowing pipe 11 blows air into the bottle mouth of the blank material. And through the movement of the triggering mechanism, the puffing assembly, the blowing pipe 11, and the shaping device are triggered in sequence to realize the movement of different functions, reducing the use of drive sources, reducing the maintenance cost, reducing the response time between various devices, and having strong practicability.

[0045] In the further provided embodiment of the present invention, the triggering mechanism includes a translation plate 21 slidably connected in the blow molding table 1. A first wedge block 22, two second wedge blocks 23, and two third wedge blocks 24 are fixedly connected to the translation plate 21. A long strip pressing plate 25 is fixedly connected to one of the second wedge blocks 23. The translation plate 21 is driven by an external driving device to move in the blow molding table 1. The first wedge block 22, the second wedge blocks 23, the third wedge blocks 24, and the long strip pressing plate 25 move synchronously and do not interfere with each other.

[0046] Further, the shaping mechanism includes a disc 31 vertically and slidably connected to the blowing pipe 11. A plurality of arc-shaped shaping pieces 33 are connected to the disc 31 through a rotating bar 32. The plurality of arc-shaped shaping pieces 33 are all connected to the outside of the blowing pipe 11 through telescopic connecting rods 34. The plurality of arc-shaped shaping pieces 33 are distributed in an annular array with the blowing pipe 11 as the center. When the plurality of arc-shaped shaping pieces 33 contract together, they wrap around the outside of the blowing pipe 11 and form a center, and its size is the same as the channel for the blowing pipe 11 reserved on the preformed mold.

[0047] Furthermore, a first support assembly is provided at the bottom of the disc 31. The first support assembly includes a hollow support block 41 rotatably connected below the disc 31. The blowing pipe 11 passes through the hollow support block 41, and both sides of the hollow support block 41 in the direction perpendicular to the blowing pipe 11 are provided with hollowed-out shapes. Wedge grooves 42 are provided on both sides of the hollow support block 41. During the movement strokes of the two wedge blocks 24, they respectively come into contact with the corresponding wedge grooves 42. An elastic telescopic rod 43 is provided between the hollow support block 41 and the blow molding table 1. The elastic force of the elastic telescopic rod 43 drives the hollow support block 41 away from the top of the inner cavity of the blow molding table 1. When the wedge block 24 enters the wedge groove 42, it will drive the hollow support block 41 to move upward. At this time, it is necessary to ensure that the plurality of arc-shaped shaping pieces 33 completely pass through the channel on the preformed mold and enter the opening of the blank before proceeding.

[0048] In the embodiment further provided by the present invention, a second support assembly is provided at the bottom of the hollow support block 41. The second support assembly includes a support plate 51. The blowing pipe 11 is rotatably connected to the support plate 51. Wedge grooves 52 are provided on both sides of the bottom of the support plate 51. During the movement strokes of the two wedge blocks 23, they respectively come into contact with the corresponding wedge grooves 52. An elastic telescopic rod 53 is provided between the support plate 51 and the blow molding table 1. The elastic force of the elastic telescopic rod 53 drives the support plate 51 away from the bottom of the inner cavity of the blow molding table 1. When the elastic telescopic rod 43 and the elastic telescopic rod 53 are in a free state, the shaping mechanism is contracted and wrapped around the suction pipe to block the channel on the preformed mold. The wedge block 23 preferentially comes into contact with the wedge groove 52. When the wedge block 23 completely enters the wedge groove 52 and the support plate 51 stops moving upward, the wedge block 24 can be prepared to be docked with the wedge groove 42. Therefore, the initial height of the wedge block 24 needs to be higher than the initial position of the wedge groove 42.

[0049] In the embodiments provided by the present invention, a long gear 61 is fixedly connected to the blowing pipe 11, and a driving unit for driving the blowing pipe 11 to rotate is arranged on the hollow support block 41; the driving unit includes an L-shaped tooth plate 62 slidably connected to the hollow support block 41. During the movement of the long strip pressing plate 25, the L-shaped tooth plate 62 is pushed to mesh with the long gear 61. An elastic telescopic rod three 63 is further arranged between the L-shaped tooth plate 62 and the hollow support block 41. The height of the long strip pressing plate 25 needs to conform to the movement track of the L-shaped tooth plate 62 to ensure that when the L-shaped tooth plate 62 moves along with the hollow support block 41, the long strip pressing plate 25 can always push the L-shaped tooth plate 62 to move horizontally, triggering the rotation of the long gear 61 on the blowing pipe 11.

[0050] In a further solution provided by the present invention, the air-puffing assembly includes a fixed cylinder 71 fixedly connected to the top of the blow molding table 1. A long rod 72 is arranged in the fixed cylinder 71. The top end of the long rod 72 is fixedly connected to an air-puffing head 73, and the air-puffing head 73 is communicated with an external air supply device; a moving block 74 is vertically slidably connected in the blow molding table 1. A wedge groove three 75 is formed in the moving block 74. During the movement of the wedge block one 22, it contacts the wedge groove three 75. A ring 76 is rotatably connected to the long rod 72. A spring 77 is arranged between the ring 76 and the blow molding table 1. After the wedge block one 22 contacts the wedge groove three 75, the wedge block two 23 can start to contact the wedge groove two 52.

[0051] Specifically, a guiding unit is arranged in the fixed cylinder 71. The guiding unit includes a track groove 81 formed on the inner wall of the fixed cylinder 71. A guiding rod 82 is fixedly connected to the long rod 72. The guiding rod 82 is slidably connected in the track groove 81. The track groove 81 is formed by splicing a spiral part and a vertical groove part. The composition and movement mode of the secondary air-blowing assembly can also be the same as the setting of the air-puffing assembly.

[0052] A demolding method based on the above glass bottle blow molding includes the following specific steps:

[0053] S1: After the raw materials fall into the preforming mold, the triggering mechanism moves first to trigger the movement of the air-puffing assembly to dock with the preforming mold, and cooperate with the blowing pipe 11 to blow-mold the raw materials.

[0054] S2: The triggering mechanism continues to move to trigger the blowing pipe 11 and the shaping mechanism to move upward, so that the shaping mechanism moves to the bottle mouth of the blank.

[0055] S3: The triggering mechanism moves again to trigger the shaping mechanism to rotate and gradually open, shaping the bottle mouth of the blank evenly and smoothly.

[0056] Working principle: During operation, after the blank enters the preforming die, the driving translation plate 21 drives the first wedge block 22 to move and enter the third wedge groove 75 in the moving block 74. The entry will gradually drive the moving block 74 to drive the long rod 72 to move downward. During the downward movement of the long rod 72, the fixed guiding rod 82 will move along the spiral part of the track groove 81 in the fixed cylinder 71, thereby driving the downward-moving long rod 72 to drive the air-punching head 73 to rotate above the preforming die. Then, the guiding rod 82 enters the vertical part of the track groove 81. At this time, the long rod 72 drives the air-punching head 73 into the preforming die to block the upper part thereof. The first wedge block 22 completely enters the third wedge groove 75 inside the moving block 74. At this time, the continuous movement of the first wedge block 22 will not drive the moving block 74 to move downward. Start the external air supply device to supply air to the air-punching head 73 and the blow pipe 11. The air-punching head 73 presses the blank from above so that the blank enters the bottom of the preforming die, and the blow pipe 11 blows air to blow out an opening at the central part of the blank, that is, the bottle mouth. At this time, the translation plate 21 continues to move so that the second wedge block 23 contacts the second wedge groove 52 on the support plate 51, thereby driving the support plate 51 to move upward. The upward movement of the support plate 51 drives the blow pipe 11 to move upward synchronously. At the same time as the support plate 51 moves upward, the hollow support block 41 supported against its top will move upward synchronously, so that a plurality of arc-shaped shaping pieces 33 arranged outside the blow pipe 11 enter the opening of the blank;

[0057] When a plurality of arc-shaped shaping pieces 33 enter the opening of the blank, the second wedge block 23 completely enters the second wedge groove 52. At this time, the continuous movement of the second wedge block 23 will not drive the support plate 51 to move upward. Then, the third wedge block 24 arranged on the translation plate 21 will enter the first wedge groove 42 in the hollow support block 41. At this time, the hollow support block 41 will push the disc 31 upward, and the support plate 51 will remain stationary under the action of the stretched elastic telescopic rod two 53. Therefore, the height of the blow pipe 11 and the arc-shaped shaping pieces 33 entering the blank remains unchanged. The distance between the upward-moving disc 31 and the arc-shaped shaping pieces 33 decreases. At this time, the plurality of arc-shaped shaping pieces 33 on the blow pipe 11 can be slowly expanded by the rotating bar 32, so as to extrude and form the inner wall of the bottle mouth. And at the same time as the third wedge block 24 enters the first wedge groove 42, the long strip pressing plate 25 arranged on the second wedge block 23 contacts the L-shaped tooth plate 62 and pushes the L-shaped tooth plate 62 to move. The movement of the L-shaped tooth plate 62 meshes with the long gear 61 arranged on the blow pipe 11, so that the blow pipe 11 drives a plurality of arc-shaped shaping pieces 33 to rotate. The rotation of the arc-shaped shaping pieces 33 drives the disc 31 to rotate on the hollow support block 41 through the rotating bar 32. At this time, while the plurality of arc-shaped shaping pieces 33 are gradually unfolding and rotating, the bottle mouth of the blank can be shaped more smoothly and evenly;

[0058] After shaping is completed, the third wedge block 24 is first separated from the first wedge groove 42 on the hollow support block 41, and the hollow support block 41 is reset under the action of the first elastic telescopic rod 43, so that the multiple arc-shaped shaping pieces 33 that are opened contract. At the same time, the thrust of the long strip pressing plate 25 on the L-shaped tooth plate 62 is reduced. After the L-shaped tooth plate 62 is reset under the action of the third elastic telescopic rod 63, the second wedge block 23 is separated from the second wedge groove 52 on the support plate 51. Under the action of the second elastic telescopic rod 53, the contracted arc-shaped shaping pieces 33 and the air blowing pipe 11 are driven to reset. Finally, the first wedge block 22 is separated from the third wedge groove 75 in the moving block 74, and the long rod 72 drives the air puffing head 73 to move up first and then rotate and reset along the shape of the track groove 81 under the action of the spring 77.

[0059] Only some exemplary embodiments of the present invention have been described above by way of illustration. Without doubt, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A glass bottle blow molding device, comprising a blow molding table (1) and a preforming mold arranged on the blow molding table (1), characterized in that: It also includes an air blowing component and a trigger mechanism, both of which are arranged in the blow molding station (1); the preforming mold is also provided with an air blowing pipe (11), and the air blowing pipe (11) is provided with a shaping mechanism; The trigger mechanism has the following three positions in its lateral motion: At the first workstation, the trigger mechanism drives the air flapping assembly to rotate and then move downward to dock with the preforming mold, and then the air flapping assembly communicates with the air blowing pipe (11) to open the bottom of the blank to form an initial model of the bottle mouth; At the second workstation, the trigger mechanism drives the air blowing pipe (11) to drive the shaping mechanism to move upward, so that an inner cavity can be blown out inside the blank, and the shaping mechanism moves to the bottle mouth; In the third station, the trigger mechanism drives the shaping mechanism to rotate and gradually expand, so as to shape the mouth of the blank evenly and smoothly; The trigger mechanism is moved to sequentially trigger the air blowing assembly, the air blowing pipe (11) and the shaping device to realize the movement of different functions, wherein the trigger mechanism comprises a translation plate (21) slidably connected to the blow molding table (1), and a wedge block 1 (22), two wedge blocks 2 (23) and two wedge blocks 3 (24) are fixedly connected to the translation plate (21), and a long pressing plate (25) is fixedly connected to one of the wedge blocks 2 (23); The shaping mechanism comprises a disc (31) vertically slidably connected to the blowing pipe (11), a plurality of arc-shaped shaping pieces (33) being connected to the disc (31) via a rotating bar (32), and the plurality of arc-shaped shaping pieces (33) are all connected to the outside of the blowing pipe (11) via a telescopic connecting rod (34); The pre-forming mold is arranged in an inverted shape, and the opening at the top thereof is larger than the opening of the complete forming mold.

2. A glass bottle blow molding device according to claim 1, characterized in that: A support assembly 1 is provided at the bottom of the disc (31), and the support assembly 1 includes a hollow support block (41) rotatably connected to the bottom of the disc (31), and wedge grooves 1 (42) are provided on both sides of the hollow support block (41). The two wedge blocks 3 (24) respectively contact the corresponding wedge grooves 1 (42) during their movement, and an elastic telescopic rod 1 (43) is provided between the hollow support block (41) and the blow molding table (1).

3. A glass bottle blow molding device according to claim 2, characterized in that: A second support assembly is provided at the bottom of the hollow support block (41), the second support assembly comprising a support plate (51), the air blowing pipe (11) is rotatably connected to the support plate (51), two sides of the bottom of the support plate (51) are provided with two wedge grooves (52), the two wedge blocks (23) respectively contact the corresponding two wedge grooves (52) during their movement, and two elastic telescopic rods (53) are provided between the support plate (51) and the blow molding table (1).

4. A glass bottle blow molding device according to claim 2, characterized in that: The air blowing pipe (11) is fixedly connected to a long gear (61), and the hollow support block (41) is provided with a driving unit for driving the air blowing pipe (11) to rotate; The driving unit comprises an L-shaped toothed plate (62) slidably connected to the hollow support block (41); the long pressing plate (25) pushes the L-shaped toothed plate (62) to engage with the long gear (61) during the movement; and an elastic telescopic rod (63) is further provided between the L-shaped toothed plate (62) and the hollow support block (41).

5. A glass bottle blow molding device according to claim 1, characterized in that: The air fluttering assembly comprises a fixed cylinder (71) fixedly connected to the top of the blow molding table (1), a long rod (72) is arranged in the fixed cylinder (71), and an air fluttering head (73) is fixedly connected to the top of the long rod (72); A moving block (74) is vertically slidably connected to the blow molding table (1), and a wedge groove three (75) is provided in the moving block (74). The wedge block one (22) contacts the wedge groove three (75) during its movement. A circular ring (76) is rotatably connected to the long rod (72), and a spring (77) is provided between the circular ring (76) and the blow molding table (1).

6. A glass bottle blow molding device according to claim 5, characterized in that: A guide unit is provided in the fixed cylinder (71), the guide unit comprising a track groove (81) formed on the inner wall of the fixed cylinder (71), a guide rod (82) is fixedly connected to the long rod (72), and the guide rod (82) is slidably connected in the track groove (81).

7. A glass bottle blow molding device according to claim 1, characterized in that: The blow molding table (1) is also provided with a complete molding mold, a material taking and turning claw, and a secondary blowing component.

8. A demoulding method based on the glass bottle blow molding device according to any one of claims 1 to 7, characterized in that: The specific steps include: S1: After the ingredients fall into the preforming mold, the trigger mechanism moves to first trigger the air blowing component to move and dock with the preforming mold, and then cooperates with the air blowing pipe (11) to blow mold the ingredients; S2: the trigger mechanism continues to move to trigger the air blowing pipe (11) and the shaping mechanism moves upward, so that the shaping mechanism moves to the bottle mouth of the blank; S3: The trigger mechanism moves again to trigger the shaping mechanism to rotate and gradually open, shaping the bottle mouth of the blank evenly and smoothly.

Citation Information

Patent Citations

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