CN209775524U - Mold locking mechanism of storage type plastic hollow blow molding machine - Google Patents
Mold locking mechanism of storage type plastic hollow blow molding machine Download PDFInfo
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- CN209775524U CN209775524U CN201920573240.9U CN201920573240U CN209775524U CN 209775524 U CN209775524 U CN 209775524U CN 201920573240 U CN201920573240 U CN 201920573240U CN 209775524 U CN209775524 U CN 209775524U
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- connecting rod
- pressure maintaining
- oil cylinder
- clamping
- rod group
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Abstract
The utility model provides a mold locking mechanism of a storage type plastic hollow blow molding machine, which comprises a front mold plate, a rear mold plate, a support plate, an opening and closing oil cylinder and a pressure maintaining component; the opening and closing oil cylinder is connected between the rear template and the supporting plate and drives the rear template to move back and forth; the pressure maintaining component comprises a pressure maintaining column, a connecting rod group and a pressure maintaining oil cylinder; the supporting plate is provided with a through hole, one end of the pressure maintaining column is connected to the rear surface of the rear template, and the other end of the pressure maintaining column is movably inserted into the through hole; the connecting rod group is arranged on the supporting plate, one end of the connecting rod group is provided with a clamping head, and the other end of the connecting rod group is connected with the pressure maintaining oil cylinder; and a clamping groove is formed in the side surface of the pressure maintaining column, and the pressure maintaining oil cylinder drives a clamping head of the connecting rod group to be embedded into or withdrawn from the clamping groove, so that the connecting rod group keeps or releases the clamping and positioning of the pressure maintaining column. The utility model discloses in fall into compound die step and pressurize step with the mode locking action, the compound die step is independently accomplished through the hydro-cylinder that opens and shuts of minor diameter, and the pressurize step is independently accomplished through the pressurize subassembly, has reduced equipment cost, has improved production efficiency, has reduced the energy consumption.
Description
Technical Field
The utility model relates to a blowing equipment technical field especially relates to a clamping mechanism of storage formula plastic cavity blowing machine.
Background
In the production process of the material storage type plastic hollow blow molding machine, a plastic extruded tube blank is generally cut, then the plastic tube blank is placed into a plastic hollow blow molding mold (the mold belongs to a left half and a right half of a half mold), high-pressure gas is blown in to enable the plastic tube blank in the molding mold to be tightly attached to the inner cavity wall of the mold through the acting force generated by the high-pressure gas, and the plastic hollow product is formed after pressure maintaining, cooling and shaping for a period of time.
In the above production process, there is an important mechanism called mold locking mechanism, and before the high pressure gas is blown in for molding, the plastic pipe blank to be blown and molded needs to be fixed and locked by the molding mold and has enough mold locking force to ensure that the left and right molding molds are not blown open or loosened by the acting force generated by the high pressure gas in the molding mold. If the phenomenon of loosening or blowing-off occurs, qualified plastic hollow products cannot be produced. In the mold locking mechanism in the prior art, a hydraulic oil cylinder generally pushes a forming mold to move left and right in opposite directions to realize mold locking, and the mold opening is realized by opposite movement. In the high-pressure gas setting state, the forming die needs to be kept in a mode locking state for a period of time, enough mode locking force is given to ensure that the forming die cannot be blown open and loosened by acting force generated by high-pressure gas in the forming die, after pressure maintaining setting and cooling setting, the left half die and the right half die are opened through the mode locking mechanism, and then qualified plastic hollow products are taken out.
In the prior art, the power for providing enough mold clamping force for the mold clamping mechanism is a hydraulic oil pump, and the hydraulic oil pump outputs certain enough pressure to drive a hydraulic oil cylinder to realize the mold clamping and mold opening actions. However, the achievement of sufficient clamping force depends on two conditions: a) a piston hydraulic ram of sufficiently large diameter; b) and a hydraulic oil pump outputting a sufficiently large pressure.
In the prior art, the opening and closing speed of the clamping mechanism is also determined by two aspects of a hydraulic oil pump and a hydraulic oil cylinder, the faster the speed is, the larger the flow output by the oil pump is, and the faster the oil cylinder diameter is after the oil pump flow is determined.
In the existing material storage type plastic hollow blow molding machine, most of the machines are used for producing larger products, and most of enterprises pay attention to giving enough mold locking force to ensure that qualified hollow plastic products can be normally produced. Sufficient clamping force, in addition to the hydraulic oil pump providing sufficient pressure, a correspondingly larger diameter hydraulic ram must be provided. The mold locking force = system pressure x area of the driving oil cylinder, so that the larger the mold locking force is, the slower the corresponding speed is, the lower the production benefit is, and the product quality is also affected. The driving speed can be improved when the output flow of the oil pump is increased, but the manufacturing and production cost is correspondingly increased. The phenomenon has not been solved ideally in the industry, and is a problem which needs to be solved urgently by technical personnel in the field at present.
SUMMERY OF THE UTILITY MODEL
the to-be-solved technical problem of the utility model is according to above-mentioned prior art not enough, provide a clamping mechanism of storage formula plastic cavity blowing machine, its manufacturing cost and the product manufacturing cost who both has saved equipment improve productivity effect and product quality again.
the technical scheme of the utility model as follows:
A mold locking mechanism of a material storage type plastic hollow blow molding machine comprises a front mold plate, a rear mold plate, a support plate, an opening and closing oil cylinder and a pressure maintaining assembly;
The opening and closing oil cylinder is connected between the rear template and the supporting plate and drives the rear template to move back and forth;
the pressure maintaining assembly comprises a pressure maintaining column, a connecting rod group and a pressure maintaining oil cylinder;
The supporting plate is provided with a through hole, one end of the pressure maintaining column is connected to the rear surface of the rear template, and the other end of the pressure maintaining column is movably inserted into the through hole;
The connecting rod group is arranged on the supporting plate, one end of the connecting rod group is provided with a clamping head, and the other end of the connecting rod group is connected with the pressure maintaining oil cylinder; and a clamping groove is formed in the side surface of the pressure maintaining column, and the pressure maintaining oil cylinder drives a clamping head of the connecting rod group to be embedded into or withdrawn from the clamping groove, so that the connecting rod group keeps or releases the clamping and positioning of the pressure maintaining column.
furthermore, the connecting rod group comprises a connecting rod base, a driving connecting rod and a clamping connecting rod; the connecting rod base is fixed on the supporting plate; one end of the driving connecting rod is hinged with the connecting rod base, and the other end of the driving connecting rod is hinged with the pressure maintaining oil cylinder; one end of the clamping connecting rod is hinged to the driving connecting rod, and the other end of the clamping connecting rod is provided with the clamping head.
Furthermore, the connecting rod base is provided with a limiting block, and the driving connecting rod is provided with a limiting step; when the limiting step is abutted against the surface of the limiting block, the rotating position of the driving connecting rod is limited.
Furthermore, the hinged part of the driving connecting rod and the connecting rod base is a first supporting point, the hinged part of the driving connecting rod and the clamping connecting rod is a second supporting point, and the position of the clamping head is a third supporting point; when the clamping head is embedded into the clamping groove, the first supporting point, the second supporting point and the third supporting point are located on the same straight line, so that the connecting rod group, the pressure maintaining column and the supporting plate form a triangular structure.
Furthermore, the clamping groove is an arc groove, and the clamping head is a roller bearing.
Further, the other end of the pressure maintaining oil cylinder is installed on the supporting plate through a hinge seat.
furthermore, the device also comprises a frame, wherein the front template, the rear template and the supporting plate are arranged on the frame.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) The mold locking action finished by one large-diameter oil cylinder in the prior art is divided into a mold closing step and a pressure maintaining step, the mold closing step is independently finished by a small-diameter opening and closing oil cylinder, the pressure maintaining step is independently finished by a pressure maintaining assembly, and the division of labor is clear.
(2) Because the opening and closing oil cylinder only needs to drive the rear template to move, pressure maintaining and positioning of the rear template are not needed. Therefore, on the premise of pushing the rear template to move, the opening and closing oil cylinder can select a small-diameter oil cylinder, and equipment cost is reduced. Meanwhile, the small-diameter oil cylinder can improve the speed of opening and closing the die, and further improve the production efficiency. And after the small-diameter oil cylinder is adopted, the output flow and the output pressure of the hydraulic oil pump can be reduced, and further the energy consumption is reduced.
(3) Because the pressure maintaining component only needs to maintain pressure and position the rear template, the rear template does not need to be driven to move. Therefore, on the premise of positioning the rear template, the pressure maintaining oil cylinder can be a small-diameter oil cylinder, and equipment cost is reduced. Meanwhile, the small-diameter oil cylinder can improve the speed of pressure maintaining and positioning, and further improve the production efficiency. And after the small-diameter oil cylinder is adopted, the output flow and the output pressure of the hydraulic oil pump can be reduced, and further the energy consumption is reduced.
Drawings
Fig. 1 is a schematic structural diagram of the embodiment.
FIG. 2 is a schematic structural diagram of the support plate, the opening and closing cylinder, and the pressure maintaining assembly according to the embodiment.
FIG. 3 is a schematic structural diagram of the pressure maintaining rod and the linkage in the pressure maintaining state according to the embodiment.
FIG. 4 is a schematic structural diagram of the pressure maintaining rod and the linkage in the pressure maintaining released state according to the embodiment.
Reference numerals
10-front template, 20-rear template, 30-support plate, 31-perforation, 40-opening and closing oil cylinder, 50-pressure maintaining component, 51-pressure maintaining column, 511-clamping groove, 52-connecting rod group, 521-clamping head, 522-connecting rod base, 523-driving connecting rod, 524-clamping connecting rod, 525-limiting block, 526-limiting step, 53-pressure maintaining oil cylinder, 531-hinging seat, 60-frame, 61-guide column, A-first support point, B-second support point and C-third support point.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 and fig. 2, the present invention provides an embodiment of a mold clamping mechanism for a storage type plastic blow molding machine, which comprises a front mold plate 10, a rear mold plate 20, a support plate 30, an opening/closing cylinder 40 and a pressure maintaining assembly 50. Wherein, the rear surface of the front mold plate 10 is used for installing a front mold, and the front surface of the rear mold plate 20 is used for installing a rear mold.
The opening and closing cylinder 40 is connected between the rear mold plate 20 and the support plate 30, and drives the rear mold plate 20 to move forward and backward. In this embodiment, two opening/closing cylinders 40 are provided.
The pressure maintaining assembly 50 includes a pressure maintaining column 51, a linkage 52 and a pressure maintaining cylinder 53.
The support plate 30 is provided with a through hole 31, and one end of the pressure maintaining column 51 is connected to the rear surface of the rear mold plate 20 and the other end thereof is movably inserted into the through hole 31.
The linkage 52 is mounted on the support plate 30, and one end of the linkage 52 is provided with a clamping head 521, and the other end is connected with the pressure maintaining oil cylinder 53. The side surface of the pressure maintaining column 51 is provided with a clamping groove 511, and the pressure maintaining oil cylinder 53 drives the clamping head 521 of the linkage 52 to be embedded into or withdrawn from the clamping groove 511, so that the linkage 52 keeps or releases the clamping and positioning of the pressure maintaining column 51. In this embodiment, two link sets 52 are provided and respectively distributed on the side surfaces of the pressure maintaining columns 51.
The linkage 52 comprises a link base 522, a driving link 523 and a clamping link 524; the link base 522 is fixed to the support plate 30; one end of the driving connecting rod 523 is hinged with the connecting rod base 522, and the other end is hinged with the pressure maintaining oil cylinder 53; one end of the clamping connecting rod 524 is hinged with the driving connecting rod 523, and the other end is provided with a clamping head 521.
The connecting rod base 522 is provided with a limiting block 525, and the driving connecting rod 523 is provided with a limiting step 526; when the limiting step 526 abuts against the surface of the limiting block 525, the rotation position of the driving link 523 is limited. The rotation range of the driving link 523 can be limited by the cooperation of the limiting block 525 and the limiting step 526, so that the driving link 523 is prevented from colliding with the pressure maintaining column 51.
As shown in fig. 3, the hinge joint of the driving link 523 and the link base 522 is a first supporting point a, the hinge joint of the driving link 523 and the blocking link 524 is a second supporting point B, and the position of the chuck 521 is a third supporting point C; when the clamping head 521 is inserted into the clamping groove 511, the first supporting point a, the second supporting point B and the third supporting point C are located on the same straight line, so that the linkage 52, the pressure maintaining column 51 and the supporting plate 30 form a triangular structure. According to the triangular stability principle, the linkage 52, the pressure maintaining column 51 and the support plate 30 are stable and firm in structure and withstand pressure, and therefore the most stable and maximum pressure maintaining effect is achieved.
The slot 511 is an arc groove, and the clamp head 521 is a roller bearing. The roller bearing can be slidably inserted into or withdrawn from the arc groove, so that the clamping head 521 can be accurately and smoothly inserted into or withdrawn from the clamping groove 511, and the clamping between the clamping head 521 and the clamping groove 511 is avoided.
In this embodiment, the other end of the pressure maintaining cylinder 53 is mounted on the support plate 30 through the hinge base 531. It should be noted that the other end of the holding pressure cylinder 53 is not limited to be connected to the support plate 30, and those skilled in the art can connect the other end of the holding pressure cylinder 53 to other positions according to actual situations as long as the holding pressure cylinder 53 can push the driving link 523.
The present embodiment further includes a frame 60, the front mold plate 10, the rear mold plate 20 and the supporting plate 30 are slidably mounted on the frame 60, and a guiding column 61 penetrates between the front mold plate 10, the rear mold plate 20 and the supporting plate 30.
The operation of this embodiment: (1) the opening-closing oil cylinder 40 drives the rear template 20 to move forwards, so that a front mold and a rear mold between the front template 10 and the rear template 20 are combined to complete the film combining step; at this time, the pressure holding column 51 moves to the pressure holding position; (2) as shown in fig. 3, the pressure maintaining cylinder 53 drives the chuck 521 of the linkage 52 to be embedded into the slot 511 of the pressure maintaining column 51, so that the linkage 52 keeps clamping and positioning the pressure maintaining column 51, and further, the movement of the rear template 20 is limited, and the pressure maintaining step is completed; (3) as shown in fig. 4, after the blow molding process is completed, the pressure maintaining cylinder 53 drives the chuck 521 of the linkage 52 to exit from the slot 511 of the pressure maintaining column 51, so that the linkage 52 releases the clamping and positioning of the pressure maintaining column 51, and the rear template 20 can move; (4) the opening and closing oil cylinder 40 drives the rear template 20 to move backwards, so that the front mold and the rear mold between the front template 10 and the rear template 20 are opened.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.
Claims (7)
1. a mold locking mechanism of a material storage type plastic hollow blow molding machine comprises a front mold plate, a rear mold plate, a support plate, an opening and closing oil cylinder and a pressure maintaining assembly; the method is characterized in that:
The opening and closing oil cylinder is connected between the rear template and the supporting plate and drives the rear template to move back and forth;
The pressure maintaining assembly comprises a pressure maintaining column, a connecting rod group and a pressure maintaining oil cylinder; the supporting plate is provided with a through hole, one end of the pressure maintaining column is connected to the rear surface of the rear template, and the other end of the pressure maintaining column is movably inserted into the through hole;
The connecting rod group is arranged on the supporting plate, one end of the connecting rod group is provided with a clamping head, and the other end of the connecting rod group is connected with the pressure maintaining oil cylinder; and a clamping groove is formed in the side surface of the pressure maintaining column, and the pressure maintaining oil cylinder drives a clamping head of the connecting rod group to be embedded into or withdrawn from the clamping groove, so that the connecting rod group keeps or releases the clamping and positioning of the pressure maintaining column.
2. The mold locking mechanism of the storage type plastic hollow blow molding machine according to claim 1, characterized in that: the connecting rod group comprises a connecting rod base, a driving connecting rod and a clamping connecting rod; the connecting rod base is fixed on the supporting plate; one end of the driving connecting rod is hinged with the connecting rod base, and the other end of the driving connecting rod is hinged with the pressure maintaining oil cylinder; one end of the clamping connecting rod is hinged to the driving connecting rod, and the other end of the clamping connecting rod is provided with the clamping head.
3. the mold locking mechanism of the storage type plastic hollow blow molding machine according to claim 2, characterized in that: the connecting rod base is provided with a limiting block, and the driving connecting rod is provided with a limiting step; when the limiting step is abutted against the surface of the limiting block, the rotating position of the driving connecting rod is limited.
4. the mold locking mechanism of the storage type plastic hollow blow molding machine according to claim 2, characterized in that: the hinged part of the driving connecting rod and the connecting rod base is a first supporting point, the hinged part of the driving connecting rod and the clamping connecting rod is a second supporting point, and the position of the clamping head is a third supporting point; when the clamping head is embedded into the clamping groove, the first supporting point, the second supporting point and the third supporting point are located on the same straight line, so that the connecting rod group, the pressure maintaining column and the supporting plate form a triangular structure.
5. The mold locking mechanism of the storage type plastic hollow blow molding machine according to claim 1, characterized in that: the clamping groove is an arc groove, and the clamping head is a roller bearing.
6. The mold locking mechanism of the storage type plastic hollow blow molding machine according to claim 1, characterized in that: the other end of the pressure maintaining oil cylinder is installed on the supporting plate through a hinge seat.
7. The mold locking mechanism of the storage type plastic hollow blow molding machine according to claim 1, characterized in that: the front template, the rear template and the supporting plate are arranged on the frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920573240.9U CN209775524U (en) | 2019-04-25 | 2019-04-25 | Mold locking mechanism of storage type plastic hollow blow molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920573240.9U CN209775524U (en) | 2019-04-25 | 2019-04-25 | Mold locking mechanism of storage type plastic hollow blow molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209775524U true CN209775524U (en) | 2019-12-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920573240.9U Expired - Fee Related CN209775524U (en) | 2019-04-25 | 2019-04-25 | Mold locking mechanism of storage type plastic hollow blow molding machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN209775524U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109968635A (en) * | 2019-04-25 | 2019-07-05 | 东莞市易技机械有限公司 | A kind of clamping mechanism of storing type plastic hollow blow moulding machine |
-
2019
- 2019-04-25 CN CN201920573240.9U patent/CN209775524U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109968635A (en) * | 2019-04-25 | 2019-07-05 | 东莞市易技机械有限公司 | A kind of clamping mechanism of storing type plastic hollow blow moulding machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210805 Address after: 523000 first floor, No. 23, building B2, Shitouling Industrial Zone, Wulian village, Fenggang town, Dongguan City, Guangdong Province Patentee after: Dongguan Jihong bottle blowing machinery Co.,Ltd. Address before: 523000 first floor, No. 22, building B2, Shitouling Industrial Zone, Wulian village, Fenggang town, Dongguan City, Guangdong Province Patentee before: Dongguan Yiji Machinery Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191213 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |