CN211807764U - Preform expanding device for blow molding equipment - Google Patents
Preform expanding device for blow molding equipment Download PDFInfo
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- CN211807764U CN211807764U CN202020059836.XU CN202020059836U CN211807764U CN 211807764 U CN211807764 U CN 211807764U CN 202020059836 U CN202020059836 U CN 202020059836U CN 211807764 U CN211807764 U CN 211807764U
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Abstract
The utility model discloses a blowing is material base expanding unit for equipment sets up in the below of material base forming die head, its characterized in that: including the extension mounting bracket, two material blank expansion posts of vertical setting up upwards are installed on the top of extension mounting bracket, still install the drive two on the extension mounting bracket material blank expansion post is inboard or the extension telescoping device of outside motion simultaneously. When the material blank is injected out of the material blank forming die head, the bottom end of the material blank is sleeved on the utility model, and when the material blank descends for a certain height, the utility model extends along the left and right sides, so that the bottom end of the material blank forms a slender shape in the left and right directions; and then the upper sealing device clamps the lower ends of the blanks from the front side and the rear side, and seals the openings at the lower ends of the blanks.
Description
Technical Field
The utility model belongs to the technical field of the blowing machine, especially, relate to a blowing equipment is with material base extension device.
Background
Blow molding, also known as blow molding, is a rapidly growing plastic processing method. The thermoplastic resin is extruded and molded by an extruding device to obtain a tubular blank, the tubular blank is placed in a mold opening of a mold closing device when the tubular blank is hot or is heated to a softening state, compressed air is introduced into the parison immediately after the mold is closed, so that the plastic parison is blown to cling to the inner wall of the mold, and various hollow products are obtained after cooling and demolding.
For some products with plate shapes, the traditional blank is generally in a tubular shape, when the lower end of the blank is sealed, a flat seal is formed at the lower end, but no auxiliary device exists during sealing, the formed seal has adhesive wrinkles, and for the plate-shaped products such as table tops, the requirements on the seal are high, and defective products are formed if the adhesive wrinkles are formed, so that the yield is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a blowing equipment that reasonable in design, with the material blank bottom to the both sides extension effectively prevent the adhesion fold, do benefit to dull and stereotyped goods shaping is with material blank extension device is provided.
In order to solve the technical problem, the technical scheme of the utility model is that: blow molding equipment is with material base extension fixture, sets up in the below of material base forming die head, including the extension mounting frame, two material base expansion posts towards the vertical setting of last are installed to the top of extension mounting frame, still install the drive on the extension mounting frame two material base expansion posts are inwards gone to the side or are to the extension telescoping device of outside motion simultaneously.
As preferred technical scheme, the extension telescoping device is including installing cross telescopic machanism on the extension mounting bracket, cross telescopic machanism's mid-mounting be in on the extension mounting bracket and with material blank forming die head corresponds, material blank expansion post is installed respectively cross telescopic machanism's both ends, still install the drive on the extension mounting bracket cross telescopic machanism extension and the flexible drive arrangement who shortens.
According to the preferable technical scheme, the telescopic driving device is a telescopic hydraulic oil cylinder, one end of the telescopic hydraulic oil cylinder is fixedly installed on the extension installation frame, and the other end of the telescopic hydraulic oil cylinder is connected to the cross telescopic mechanism.
According to the preferable technical scheme, one end of the expansion mounting frame is further provided with a material blank avoiding device for driving the expansion mounting frame to avoid the material blank.
As an optimal technical scheme, the material blank avoiding device comprises an avoiding fixing seat, an avoiding transmission device is installed on the avoiding fixing seat, the expanding installation frame is fixedly connected to the output end of the avoiding transmission device, and the input end of the avoiding transmission device is connected with a driving rotary driving device of the expanding installation frame rotating between the horizontal state and the vertical state.
As the preferred technical scheme, the avoiding transmission device comprises a driving worm which is vertically arranged and a driven worm wheel which is in transmission fit with the driving worm, the driven worm wheel is installed on a rotating shaft which is horizontally arranged, and the expansion installation frame is fixedly connected with the rotating shaft.
As a preferable technical scheme, the rotation driving device is a rotation hydraulic oil cylinder which drives the driving worm to rotate.
Due to the adoption of the technical scheme, the blank expanding device for the blow molding equipment is arranged below the blank molding die head and comprises an expanding mounting frame, two blank expanding columns which are vertically arranged upwards are mounted at the top end of the expanding mounting frame, and an expanding expansion device for driving the two blank expanding columns to move inwards or outwards simultaneously is further mounted on the expanding mounting frame; the utility model has the advantages that: when the utility model works, the utility model is in a horizontal state, namely a waiting state, when the material blank is injected out from the material blank forming die head, the bottom end of the material blank is sleeved on the utility model, and when the material blank descends for a section of height, the utility model is extended along the left and right sides, so that the bottom end of the material blank forms a slender shape in the left and right directions, namely, the extension process of the material blank is realized; then go up the closing device effect, the lower extreme that presss from both sides the material base is closed to both sides direction in the past after, seals the mouth of material base lower extreme, realizes the process of sealing of material base promptly, because the material base is the long and thin shape of left right direction this moment, seals along the long and thin shape of material base in the past after both sides direction when sealing simultaneously, guarantees that the material base seals for long and thin form, just because the utility model discloses stretch into long and thin shape with the material base lower extreme, can effectively avoid among the prior art material base to seal and take place to glue even there is the fold, and do benefit to dull and stereotyped goods shaping, improved the shaping.
Drawings
The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein:
fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural view of a material blank avoiding device according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a material blank avoiding device according to an embodiment of the present invention;
FIG. 4 is a front view of a blank expanding device according to an embodiment of the present invention;
FIG. 5 is a plan view of a blank holder expanding device according to an embodiment of the present invention;
FIG. 6 is a schematic structural view showing a vertical state of a material blank expanding device according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of an installation effect of an embodiment of the present invention;
in the figure: 1-forming a blank into a die head; 2-installing a sealing device; 3-a preform expanding device; 31-an expansion mount; 32-a cross-telescoping mechanism; 33-preform spreading columns; 34-a telescopic hydraulic oil cylinder; 4-a material blank avoiding device; 41-avoidance fixing seat; 42-a rotary hydraulic cylinder; 43-a driving worm; 44-a driven worm gear; 45-rotation axis.
Detailed Description
The invention is further explained below with reference to the drawings and examples. In the following detailed description, certain exemplary embodiments of the present invention have been described by way of illustration only. Needless to say, a person skilled in the art will recognize that the described embodiments can be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.
As shown in fig. 1 and 2, as shown in fig. 1, the crease-resistant sealing device for the blow molding equipment is arranged between a blank molding die head 1 and a mold closing device, and both the blank molding die head 1 and the mold closing device are in the prior art, and comprises an upper sealing device 2 which is arranged below the blank molding die head 1 and is opened and closed along the front side and the rear side, a blank expanding device 3 which is telescopic along the left side and the right side is correspondingly arranged below the upper sealing device 2, and a blank avoiding device 4 which drives the blank expanding device 3 to avoid blanks is further arranged at one end of the blank expanding device 3. When the blank expanding device 3 is in a horizontal state, namely a waiting state, referring to fig. 7, when a blank is injected out of the blank forming die head 1, the bottom end of the blank is sleeved on the blank expanding device 3, and when the blank descends for a certain height, the blank expanding device 3 extends along the left and right directions, so that the bottom end of the blank is formed into a left and right elongated shape, namely the blank expanding process is realized; the upper sealing device 2 acts to clamp the lower ends of the blanks from the front side and the rear side and seal the openings at the lower ends of the blanks, so that the sealing process of the blanks is realized, the blanks are in a slender shape in the left-right direction at the moment, and the blanks are sealed along the slender shape of the blanks from the front side and the rear side during sealing, so that the sealed slender shape of the blanks is ensured, and the lower ends of the blanks are stretched into the slender shape by the blank expanding device 3, so that the blank sealing in the prior art can be effectively prevented from being adhered with wrinkles, the flat plate product molding is facilitated, and the molding rate of the product is improved; after the bottom of the material blank is sealed, the material blank avoiding device 4 acts to control the material blank expanding device 3 to avoid the material blank and is used for avoiding the material blank to continuously descend, and meanwhile, the upper sealing device 2 is opened to clamp, so that the expansion and sealing of the material blank are completed; in the whole working process, the blank is injected from the blank forming die head 1 all the time, wherein the time of the expansion and sealing process is short, the falling of the blank cannot be influenced, the blank after the sealing is finished continuously descends and enters the die opening of the die closing device, compressed air is immediately introduced into the blank after the die closing, the blank is blown to be attached to the inner wall of the die, and the finished product is obtained after cooling and demoulding; furthermore, because go up closing device 2 and set up between material blank forming die 1 and closing die device, consequently, follow as the material blank after material blank forming die 1 comes out has one section length after, begins to seal the bottom promptly, just begins to seal after reaching predetermined longer length with the material blank among the prior art and compares, the utility model discloses a material blank is not stereotyped yet, seals the effect and obviously is superior to prior art, and because the length of material blank is short, phenomenon such as easily fluttering among the prior art can not appear, especially passes through material blank expanding unit 3 can effectively guarantee more and seal the effect.
Referring to fig. 1 to 6, the preform expanding device for the blow molding machine, namely, the preform expanding device 3, includes an expanding mounting frame 31, two preform expanding columns 33 vertically arranged upward are mounted at the top end of the expanding mounting frame 31, and an expanding and contracting device for driving the two preform expanding columns 33 to move inward or outward simultaneously is further mounted on the expanding mounting frame 31; extension telescoping device is including installing crossed telescopic machanism 32 on the extension mounting bracket 31, crossed telescopic machanism 32 belongs to prior art, crossed telescopic machanism 32's mid-mounting be in on the extension mounting bracket 31 and with material blank forming die 1 corresponds, material blank expansion post 33 is installed respectively crossed telescopic machanism 32's both ends, still install the drive on the extension mounting bracket 31 crossed telescopic machanism 32 extension and the flexible drive arrangement who shortens. Referring to fig. 2 and 3, the telescopic driving device is a telescopic hydraulic oil cylinder 34, one end of the telescopic hydraulic oil cylinder 34 is fixedly mounted on the extension mounting frame 31, and the other end of the telescopic hydraulic oil cylinder 34 is connected to the cross telescopic mechanism 32. When the material blank is injected out of the material blank molding die head 1, the bottom of the material blank is sleeved outside the two material blank expansion columns 33, when the material blank descends by a section of height, the telescopic hydraulic oil cylinder 34 begins to shorten to drive the cross telescopic mechanism 32 to extend, namely, the two material blank expansion columns 33 are driven to move outwards respectively, in the moving process, the bottom end of the material blank is pulled to extend along two sides of the moving direction, so that the bottom end of the material blank forms a slender shape in the left and right directions, namely, the material blank expansion process is realized, then the sealing is carried out through the upper sealing device 2, after the sealing is finished, the telescopic hydraulic oil cylinder 34 begins to extend to drive the cross telescopic mechanism 32 to shorten, namely, the two material blank expansion columns 33 are driven to move inwards respectively, and the material; because the blank expansion columns 33 are positioned at two telescopic ends of the cross telescopic mechanism 32, and the middle part of the cross telescopic mechanism 32 is arranged on the expansion mounting frame 31, namely when the telescopic hydraulic oil cylinder 34 begins to shorten, the two blank expansion columns 33 synchronously move outwards, and when the telescopic hydraulic oil cylinder 34 begins to extend, the two blank expansion columns 33 synchronously move inwards.
Referring to fig. 4 and 5, the blank avoiding device 4 comprises an avoiding fixing seat 41, and the avoiding fixing seat 41 is fixedly installed on the rack and serves as a mounting base of the blank avoiding device 4; an avoiding transmission device is installed on the avoiding fixed seat 41, the expansion installation frame 31 is fixedly connected to the output end of the avoiding transmission device, the input end of the avoiding transmission device is connected with a rotary driving device for driving the expansion installation frame 31 to rotate between a horizontal state and a vertical state, the avoiding transmission device comprises a driving worm 43 vertically arranged and a driven worm wheel 44 in transmission fit with the driving worm 43, the driven worm wheel 44 is installed on a rotating shaft 45 horizontally arranged, the expansion installation frame 31 is fixedly connected with the rotating shaft 45, and the driving worm 43 is fixedly connected with an output shaft of the rotary hydraulic oil cylinder 42. After the bottom of the preform is sealed, the preform avoiding device 4 acts, the rotating hydraulic cylinder 42 rotates to drive the driving worm 43 to rotate, the driving worm 43 and the driven worm wheel 44 are in matched transmission to drive the driven worm wheel 44 to rotate, the driven worm wheel 44 is fixedly mounted on the rotating shaft 45 to drive the rotating shaft 45 to rotate, the extension mounting frame 31 is fixedly mounted on the rotating shaft 45, the extension mounting frame 31 is driven to rotate, the preform extending device 3 is controlled to rotate 90 degrees through the movement of the rotating hydraulic cylinder 42, switching is performed between a horizontal state and a vertical state, and when the preform extending device 3 is switched from the horizontal state to the vertical state, fig. 6 shows the vertical state of the preform extending device 3. When the material blank expanding device starts to rotate downwards, the material blank expanding device 3 is driven to withdraw from the bottom end of the material blank firstly and then continuously rotate to one side for avoiding, the material blank avoiding device 4 is used for controlling the material blank expanding device 3 to be switched between a horizontal state and a vertical state, two different actions of withdrawing firstly and avoiding secondly are realized only through one rotation action, the structure is simple, and the operation is convenient. Certainly the device 4 is dodged to the material blank also can realize through setting up descent device and horizontal migration device, at first will through the descent device the decline of material blank extension fixture makes it withdraw from the material blank bottom, then drives through the horizontal migration device the mode of material blank extension fixture horizontal migration to one side is realized dodging, belongs to the utility model discloses a protection scope.
The rotation driving device is a rotation hydraulic oil cylinder 42 for driving the driving worm 43 to rotate, and the rotation hydraulic oil cylinder 42 is in the prior art.
The basic principles, main features and advantages of the present invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The blowing equipment is with material base expanding unit, sets up in the below of material base forming die head, its characterized in that: including the extension mounting bracket, two material blank expansion posts of vertical setting up upwards are installed on the top of extension mounting bracket, still install the drive two on the extension mounting bracket material blank expansion post is inboard or the extension telescoping device of outside motion simultaneously.
2. The preform expanding device for a blow molding machine according to claim 1, wherein: the extension telescoping device is including installing cross telescopic machanism on the extension mounting bracket, cross telescopic machanism's mid-mounting be in on the extension mounting bracket and with material blank forming die head corresponds, material blank expansion post is installed respectively cross telescopic machanism's both ends, still install the drive on the extension mounting bracket cross telescopic machanism extension and the flexible drive arrangement who shortens.
3. The preform expanding device for a blow molding machine according to claim 2, wherein: the telescopic driving device is a telescopic hydraulic oil cylinder, one end of the telescopic hydraulic oil cylinder is fixedly arranged on the extension mounting frame, and the other end of the telescopic hydraulic oil cylinder is connected to the cross telescopic mechanism.
4. The preform expanding device for a blow molding machine according to claim 1, wherein: and a material blank avoiding device for driving the expanding mounting frame to avoid the material blank is further installed at one end of the expanding mounting frame.
5. The preform expanding device for a blow molding machine according to claim 4, wherein: the device is dodged to the material base is including dodging the fixing base, dodging to install on the fixing base and dodging transmission, extension mounting bracket fixed connection be in dodge transmission's output, the input of dodging transmission is connected with the drive the rotatory rotary driving device of extension mounting bracket between horizontal state and vertical state.
6. The preform expanding device for a blow molding machine according to claim 5, wherein: dodge transmission include the initiative worm of vertical setting and with initiative worm transmission complex driven worm wheel, driven worm wheel installs on the rotation axis that the level set up, the extension mounting bracket with rotation axis fixed connection.
7. The preform expanding device for a blow molding machine according to claim 6, wherein: the rotary driving device is a rotary hydraulic oil cylinder which drives the driving worm to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020059836.XU CN211807764U (en) | 2020-01-10 | 2020-01-10 | Preform expanding device for blow molding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020059836.XU CN211807764U (en) | 2020-01-10 | 2020-01-10 | Preform expanding device for blow molding equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211807764U true CN211807764U (en) | 2020-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020059836.XU Active CN211807764U (en) | 2020-01-10 | 2020-01-10 | Preform expanding device for blow molding equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211807764U (en) |
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2020
- 2020-01-10 CN CN202020059836.XU patent/CN211807764U/en active Active
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