Multi-row mouth mold Hough variable-pitch mechanism of bottle blowing machine

Abstract

The utility model discloses a multi-row mouth mold Haff pitch changing mechanism of a bottle blowing machine. The multi-row mouth mold Haff pitch changing mechanism comprises a mouth mold assembly, an opening and closing assembly and a driving assembly, the mouth mold assembly comprises a first row of Haff mouth mold parts and a second row of Haff mouth mold parts; the opening and closing assembly comprises a positive and negative tooth opening and closing lead screw, a first opening and closing sliding block, a second opening and closing sliding block, a first centering sliding block and a second centering sliding block. The first opening and closing sliding block and the second opening and closing sliding block are connected to nuts at the two opposite ends of the positive and negative tooth opening and closing lead screw respectively, the first centering sliding block is connected with the first opening and closing sliding block, and the second centering sliding block is connected with the second opening and closing sliding block. The first centering sliding block is connected with the first row of Haff opening modules, and the second centering sliding block is connected with the second row of Haff opening modules; the driving assembly is arranged on the outer side of the first row of Haff opening modules. According to the utility model, the distance between multiple rows of film blowing molds can be reduced, the whole structure is more compact, the space is saved, and the power is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of bottle blowing machines, in particular to a half-distance variable mechanism for a multi-row die of a bottle blowing machine. Background Art

[0002] In the traditional bottle blowing process, the traditional single-row station production efficiency is low, while the multi-row station occupies a large area and has a high cost. In addition, the traditional double-row station bottle blowing machine has complex control and needs to control each row of stations separately. The control accuracy is difficult to achieve, which reduces the yield rate. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model aims to provide a multi-row die half-pitch mechanism for a bottle blowing machine, which can reduce the spacing between the multi-row film blowing molds, make the overall structure more compact, save space, and save power.

[0004] The purpose of the utility model is achieved by the following technical solutions:

[0005] A multi-row die half-distance variable mechanism for a bottle blowing machine, comprising a die assembly, an opening and closing assembly and a driving assembly;

[0006] The die assembly comprises a first half die template, a second half die template, a third half die template and a fourth half die template; the first half die template and the second half die template are relatively openable and closable to form a first row of half die modules, and the third half die template and the fourth half die template are relatively openable and closable to form a second row of half die modules;

[0007] The opening and closing assembly includes a positive and negative tooth opening and closing screw, a first opening and closing slider, a second opening and closing slider, a first centering slider and a second centering slider; the first opening and closing slider and the second opening and closing slider are respectively connected to the opposite ends of the positive and negative tooth opening and closing screw through nuts, the first centering slider is connected to the first opening and closing slider, and the second centering slider is connected to the second opening and closing slider, so that the first centering slider and the second centering slider can be close to or away from each other along the axial direction of the positive and negative tooth opening and closing screw; the first centering slider is connected to the first row of half-mouth modules, and the second centering slider is connected to the second row of half-mouth modules; so that the first centering slider connected to the first row of half-mouth modules and the second row of half-mouth modules are driven to close or open;

[0008] The driving component is arranged on the outside of the first row of half mouth modules, and the driving component drives the first row of half mouth modules to move, so that the first opening and closing slider drives the positive and negative tooth opening and closing screws to rotate, thereby driving the second opening and closing slider to move in the opposite direction, so that the first centering slider and the second centering slider are close to or away from each other, thereby realizing the closing or opening of the first row of half mouth modules containing the first half mouth template and the second half mouth template and the second row of half mouth template containing the third half mouth template and the fourth half mouth template.

[0009] In an optional embodiment, the opening and closing assembly also includes a half plate fixing seat, a guide groove is formed on the half plate fixing seat, the guide groove is arranged in the same direction as the axis of the positive and negative tooth opening and closing screw rod, and the first centering slider and the second centering slider are respectively slidably connected in the guide groove.

[0010] In an optional embodiment, a first positioning column is formed in the middle of the Haff plate fixing seat, and when the first row of Haff mouth modules and the second row of Haff mouth modules are closed into place, the first centering slider and the second centering slider are held against the first positioning column.

[0011] In an optional embodiment, a second positioning column is formed in the middle of the first centering slider, and the second positioning column is used to center and fix the first half mouth template and the second half mouth template;

[0012] A third positioning column is formed in the middle of the second centering sliding block, and the third positioning column is used to center and fix the third half mouth template and the fourth half mouth template.

[0013] In an optional implementation, the first opening and closing slider is connected to the second half mouth template, and the second opening and closing slider is connected to the third half mouth template.

[0014] In an optional embodiment, the opening and closing assembly is arranged at the end of the die assembly.

[0015] In an optional embodiment, opening and closing components are provided at both ends of the die assembly.

[0016] In an optional embodiment, the driving assembly includes a driving cylinder, a clutch and a control member; the control member is fixed to the outside of the first half mouth template, and the control member is detachably connected to the output end of the driving cylinder through the clutch.

[0017] In an optional embodiment, it also includes a turntable, on which a first station, a second station, a third station and a fourth station are arranged; a die assembly and an opening and closing assembly are arranged on the first station, the second station, the third station and the fourth station.

[0018] In an optional embodiment, the first station is a preform injection station, the second station is a pre-blowing temperature adjustment station, the third station is a bottle blowing station, and the fourth station is a demolding station; driving cylinders are provided on the outer sides of the third station and the fourth station.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] The utility model provides a multi-row Huff mouth mold pitch-changing mechanism for a bottle blowing machine with power provided by a driving assembly, and drives the first row of Huff mouth molds to move through the driving assembly. The movement of the first row of Huff mouth molds drives the first opening and closing slider to move, and the first opening and closing slider drives the positive and negative tooth opening and closing screws to rotate, thereby driving the second opening and closing slider to move in the opposite direction, so that the first fixed center slider and the second fixed center slider connected to the first opening and closing slider are close to or away from each other, and the first row of Huff mouth molds and the second row of Huff mouth molds are closed or opened in place. The first row of Huff mouth molds and the second row of Huff mouth molds can be linked by the opening and closing assembly to achieve closing and opening in place. When closing, the first Huff mouth template, the second Huff mouth template, the third Huff mouth template and the fourth Huff mouth template are mutually supported, and a stable pre-locking mold force is provided at the same time. When opening, the pre-locking mold force is also automatically unlocked, and the effect is better. There is no need to independently set up a power mechanism for each row of modules to provide their own opening and closing power, so that the spacing between multiple rows of molds can be minimized, which is more compact and saves space, which is conducive to increasing production and saving power at the same time. Multiple rows of modules can be controlled with only one set of power, which effectively saves energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the Hough pitch-changing mechanism of the multi-row die of the bottle blowing machine of Example 1;

[0022] Figure 2 It is a structural schematic diagram of the opening and closing assembly of the half-length variable pitch mechanism of the multi-row die of the bottle blowing machine of Example 1;

[0023] Figure 3 It is a structural schematic diagram of the closed state of the half-length variable pitch mechanism of the multi-row die of the bottle blowing machine of Example 1;

[0024] Figure 4 This is a structural schematic diagram of a half-length variable pitch mechanism for a multi-row die of a bottle blowing machine according to another embodiment of Example 1.

[0025] In the figure: 10, die assembly; 11, first half mouth template; 12, second half mouth template; 13, third half mouth template; 14, fourth half mouth template; 20, opening and closing assembly; 21, positive and negative opening and closing screw; 22, first opening and closing slider; 23, second opening and closing slider; 24, first centering slider; 25, second centering slider; 26, half plate fixing seat; 261, first positioning column; 262, second positioning column; 263, third positioning column; 30, driving assembly; 31, driving cylinder; 32, clutch; 33, control component; 90, turntable; 91, first station; 92, second station; 93, third station; 94, fourth station. DETAILED DESCRIPTION

[0026] Below, in conjunction with the accompanying drawings and specific implementation methods, the utility model is further described. It should be noted that, under the premise of no conflict, the various embodiments described below or the various technical features can be arbitrarily combined to form a new embodiment. Except for special instructions, the materials and equipment used in this embodiment can be purchased from the market. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar numbers throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0027] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In the description of the present application, "plurality" means two or more, unless otherwise precisely and specifically specified.

[0028] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be connected through an intermediary medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] The terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0030] Embodiment 1:

[0031] Please refer to Figure 1-4 , this embodiment provides a multi-row die half pitch variable mechanism for a bottle blowing machine, including a die assembly 10, an opening and closing assembly 20 and a driving assembly 30;

[0032] The mouth mold assembly 10 of this embodiment includes 4 mouth mold plates, namely the first half mold plate 11, the second half mold plate 12, the third half mold plate 13 and the fourth half mold plate 14; the first half mold plate 11 and the second half mold plate 12 are relatively openable and closable to form the first row of half mold parts, the third half mold plate 13 and the fourth half mold plate 14 are relatively openable and closable to form the second row of half mold parts, and the two rows of half mold parts form a double-row blowing station. This embodiment is only described with a double-row station. In actual operation, this embodiment can be adaptively adjusted to set the third row of half mold parts and the fourth row of half mold parts, the fifth row of half mold parts and the sixth row of half mold parts, or even the seventh row of half mold parts and the eighth row of half mold parts to achieve simultaneous operation of multiple rows of molds, which can be known to those skilled in the art.

[0033] The opening and closing assembly 20 is arranged at the end of the die assembly 10. In order to improve the opening and closing and connection stability, the opening and closing assembly 20 is arranged at both ends of the die assembly 10. The opening and closing assembly 20 includes a positive and negative opening and closing screw 21, a first opening and closing slider 22, a second opening and closing slider 23, a first centering slider 24 and a second centering slider 25.

[0034] A forward thread and a reverse thread are formed on both sides of the forward and reverse thread opening and closing screw 21, respectively. The first opening and closing slider 22 is connected to the forward thread of the forward and reverse thread opening and closing screw 21 through a ball screw nut, and the second opening and closing slider 23 is connected to the reverse thread of the forward and reverse thread opening and closing screw 21 through a ball screw nut. The two are symmetrically arranged at opposite ends of the forward and reverse thread opening and closing screw 21. By rotating the forward and reverse thread opening and closing screw 21, the first opening and closing slider 22 and the second opening and closing slider 23 can approach or move away from each other along the axis of the forward and reverse thread opening and closing screw 21.

[0035] One side of the first centering slider 24 is connected to the first opening and closing slider 22 , and one side of the second centering slider 25 is connected to the second opening and closing slider 23 , so that the first centering slider 24 and the second centering slider 25 can approach or move away from each other under the drive of the first opening and closing slider 22 and the second opening and closing slider 23 .

[0036] The first centering slider 24 is connected to the first row of half-mouth modules on the other side away from the first opening and closing slider 22, and the second centering slider 25 is connected to the second row of half-mouth modules on the other side away from the second opening and closing slider 23; thereby, the first row of half-mouth modules and the second row of half-mouth modules are closed or opened under the drive of the first centering slider 24 and the second centering slider 25.

[0037] The driving assembly 30 is disposed outside the first row of half port modules.

[0038] When in use, the driving component 30 provides power, and the output end of the driving component 30 extends to push the first row of half-mouth modules forward. The movement of the first row of half-mouth modules drives the first opening and closing slider 22 to move, and the first opening and closing slider 22 drives the positive and negative tooth opening and closing screw rod 21 to rotate, thereby driving the second opening and closing slider 23 to move in the opposite direction, that is, the second opening and closing slider 23 moves in the direction close to the first opening and closing slider 22, so that the first centering slider 24 and the second centering slider 25 connected to the first opening and closing slider 22 and the second opening and closing slider 23 are close to each other, so that the first row of half-mouth modules and the second row of half-mouth modules are closed in place. On the contrary, the driving component 30 provides power, and the driving component 30 is connected to the first row of Haff mouth modules through a clutch assembly. The output end of the driving component 30 retracts, dragging the first row of Haff mouth modules backward, and the movement of the first row of Haff mouth modules drives the first opening and closing slider 22 to move, and the first opening and closing slider 22 drives the positive and negative tooth opening and closing screw rod 21 to rotate, thereby driving the second opening and closing slider 23 to move in the opposite direction, that is, the second opening and closing slider 23 moves in the direction away from the first opening and closing slider 22, so that the first centering slider 24 and the second centering slider 25 connected to the first opening and closing slider 22 and the second opening and closing slider 23 are moved away from each other, so that the first row of Haff mouth modules and the second row of Haff mouth modules are opened and closed in place.

[0039] The multi-row mold Huff distance changing mechanism of the bottle blowing machine of this embodiment can realize the linkage of the first row of Huff molds and the second row of Huff molds through the opening and closing component 20, and realize closing and opening in place. When closing, the first Huff mold plate 11, the second Huff mold plate 12, the third Huff mold plate 13 and the fourth Huff mold plate 14 are mutually supported, and a stable pre-locking mold force is provided at the same time. When opening, the pre-locking mold force is automatically unlocked, and the effect is better. There is no need to independently set a power mechanism for each row of molds to provide their own opening and closing power, so that the multi-row spacing of the mold blowing mold is minimized, which is more compact, saves space, is conducive to increasing production, and saves power at the same time. Multi-row molds can be controlled with only one set of power, which effectively saves energy.

[0040] Furthermore, a half plate fixing seat 26 is also provided at the bottom of the opening and closing component 20, and a guide groove is formed on the half plate fixing seat 26, and the guide groove is arranged in the same direction as the axis of the positive and negative opening and closing screw rod 21, and the first centering slider 24 and the second centering slider 25 are respectively slidably connected in the guide groove. The first centering slider 24 and the second centering slider 25 are guided by the guide groove to guide them to approach or move away from each other, and the half plate fixing seat 26 provides a connection and fixation function for the first centering slider 24 and the second centering slider 25, so as to avoid shaking during the opening and closing process and improve stability.

[0041] A first positioning column 261 is formed in the middle of the half plate fixing seat 26, a second positioning column 262 is formed in the middle of the first centering slider 24, and a third positioning column 263 is formed in the middle of the second centering slider 25; when the first row of half mouth modules and the second row of half mouth modules are closed in place, the first centering slider 24 and the second centering slider 25 are held against the first positioning column 261, and the first centering slider 24 and the second centering slider 25 can be locked on the half plate fixing seat 26 through the first positioning column 261. The second positioning column 262 is used to fix and position the first half mouth template 11 and / or the second half mouth template 12 to the center position of the first centering slider 24, and the third positioning column 263 is used to fix and position the third half mouth template 13 and / or the fourth half mouth template 14 to the center position of the second centering slider 25.

[0042] Specifically, the first row of half-mouth modules are connected and fixed to the first centering slider 24 through the second positioning column 262, and the second row of half-mouth modules are connected and fixed to the second centering slider 25 through the third positioning column 263. Thus, the first row of half-mouth modules and the second row of half-mouth modules can move together with the first centering slider 24 and the second centering slider 25. The first opening and closing slider 22 is connected to the second half-mouth template 12, and the second opening and closing slider 23 is connected to the third half-mouth template 13. The first centering slider 24 is positioned and connected to a pair of half-mouth templates 11 / 12, and a pair of half-mouth templates 11 / 12 can be opened and closed and demolded separately. The second centering slider 25 is the same, and those skilled in the art can understand it.

[0043] Furthermore, the mouth mold assembly 10 and the opening and closing assembly 20 of the present embodiment are arranged on a turntable 90, and the turntable 90 is provided with a first station 91, a second station 92, a third station 93 and a fourth station 94; wherein the first station 91 is an injection molding station, the second station 92 is a pre-blowing temperature adjustment station, the third station 93 is a bottle blowing station, and the fourth station 94 is a demolding station; the first station 91, the second station 92, the third station 93 and the fourth station 94 are all provided with a mouth mold assembly 10 and an opening and closing assembly 20.

[0044] The driving assembly 30 of this embodiment includes a driving cylinder 31, a clutch 32 and a control component 33; the control component 33 is fixed to the outside of the first half mouth template 11, and the control component 33 is detachably connected to the output end of the driving cylinder 31 through the clutch 32. The driving cylinder 31 is provided on the outside of the third workstation 93 and the fourth workstation 94 of this embodiment.

[0045] The initial state of the mouth mold assembly 10 of the first station 91 is the closed state, and the preform injection process is performed. After completion, it is switched to the second station 92 by rotating the turntable 90. At this time, the mouth mold assembly 10 is still in the closed state, and the pre-blowing and temperature adjustment process is performed. After completion, it is switched to the third station 93 by rotating the turntable 90. The control component 33 and the clutch 32 are automatically connected with the driving cylinder 31 of the third station 93. After the bottle blowing process is completed, at the same time, under the action of the opening mechanism of the bottle blowing machine, after the bottle is separated from the blow mold, the output end of the driving cylinder 31 retracts, and the mouth mold assembly 10 is opened under the action of the opening and closing assembly 20. The turntable 90 drives the bottle to rise. After completely separating from the top of the blow mold, it rotates to the fourth station 94. Under the action of the demoulding mechanism of the bottle blowing machine, each row of molds is opened to separate the bottle mouth from the opening mold, and the demoulding process is completed. Then, the driving cylinder 31 is output and extended, and the die assembly 10 is closed under the action of the opening and closing assembly 20 and returns to the initial state. After the turntable 90 is raised, it rotates to the first station 91. The above process is repeated to realize the continuous working process of bottle blowing.

[0046] Although certain components and embodiments of the present application have been illustrated and described, many modifications and changes (e.g., changes in size, dimensions, structure, shape and proportion of the various elements, mounting arrangements, use of materials, color, orientation, etc.) may be conceived by those skilled in the art without actually departing from the scope and spirit of the claims.

[0047] Finally, it should be noted that the above-mentioned implementation mode is only a preferred embodiment of the present utility model, and cannot be used to limit the scope of protection of the present utility model. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present utility model shall fall within the scope of protection required by the present utility model.

Claims

1. A multi-row die half-length variable pitch mechanism for a bottle blowing machine, characterized in that: It includes a die assembly, an opening and closing assembly and a driving assembly; The die assembly comprises a first half die template, a second half die template, a third half die template and a fourth half die template; the first half die template and the second half die template are relatively openable and closable to form a first row of half die modules, and the third half die template and the fourth half die template are relatively openable and closable to form a second row of half die modules; The opening and closing assembly includes a positive and negative tooth opening and closing screw, a first opening and closing slider, a second opening and closing slider, a first centering slider and a second centering slider; the first opening and closing slider and the second opening and closing slider are respectively connected to the opposite ends of the positive and negative tooth opening and closing screw through nuts, the first centering slider is connected to the first opening and closing slider, and the second centering slider is connected to the second opening and closing slider, so that the first centering slider and the second centering slider can be close to or away from each other along the axial direction of the positive and negative tooth opening and closing screw; the first centering slider is connected to the first row of half-mouth modules, and the second centering slider is connected to the second row of half-mouth modules; so that the first centering slider connected to the first row of half-mouth modules and the second row of half-mouth modules are driven to close or open; The driving component is arranged on the outside of the first row of half mouth modules, and the driving component drives the first row of half mouth modules to move, so that the first opening and closing slider drives the positive and negative tooth opening and closing screws to rotate, thereby driving the second opening and closing slider to move in the opposite direction, so that the first centering slider and the second centering slider are close to or away from each other, thereby realizing the closing or opening of the first row of half mouth modules containing the first half mouth template and the second half mouth template and the second row of half mouth template containing the third half mouth template and the fourth half mouth template.

2. The multi-row die Hough pitch changing mechanism of a bottle blowing machine according to claim 1, characterized in that: The opening and closing assembly also includes a half plate fixing seat, a guide groove is formed on the half plate fixing seat, the guide groove is arranged in the same direction as the axis of the positive and negative tooth opening and closing screw rod, and the first centering slider and the second centering slider are respectively slidably connected in the guide groove.

3. The multi-row die Hough pitch changing mechanism of a bottle blowing machine according to claim 2, characterized in that: A first positioning column is formed in the middle of the half plate fixing seat. When the first row of half mouth modules and the second row of half mouth modules are closed in place, the first centering slider and the second centering slider are held against the first positioning column.

4. The multi-row die half-length variable pitch mechanism of a bottle blowing machine according to claim 2, characterized in that: A second positioning column is formed in the middle of the first centering slider, and the second positioning column is used to center and fix the first half mouth template and the second half mouth template; A third positioning column is formed in the middle of the second centering sliding block, and the third positioning column is used to center and fix the third half mouth template and the fourth half mouth template.

5. The multi-row die half-length variable pitch mechanism for a bottle blowing machine according to claim 4, characterized in that: The first opening and closing slider is connected to the second half mouth template, and the second opening and closing slider is connected to the third half mouth template.

6. The multi-row die half-length variable pitch mechanism for a bottle blowing machine according to claim 5, characterized in that: The opening and closing component is arranged at the end of the die component.

7. The multi-row die half-length variable pitch mechanism for a bottle blowing machine according to claim 6, characterized in that: Both ends of the die assembly are provided with opening and closing assemblies.

8. The multi-row die half-length variable pitch mechanism for a bottle blowing machine according to claim 1, characterized in that: The driving assembly includes a driving cylinder, a clutch and a control component; the control component is fixed to the outside of the first half mouth template, and the control component is detachably connected to the output end of the driving cylinder through the clutch.

9. The multi-row die Hough pitch changing mechanism of a bottle blowing machine according to claim 8, characterized in that: It also includes a turntable, on which a first station, a second station, a third station and a fourth station are arranged; and a die assembly and an opening and closing assembly are arranged on the first station, the second station, the third station and the fourth station.

10. A multi-row die Hough pitch changing mechanism for a bottle blowing machine according to claim 9, characterized in that: The first station is a preform injection station, the second station is a pre-blowing temperature adjustment station, the third station is a bottle blowing station, and the fourth station is a demoulding station; driving cylinders are arranged on the outer sides of the third station and the fourth station.

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