Blow molding mold closing frame device of injection, stretch and blow molding equipment

Abstract

The utility model relates to the technical field of injection-stretch-blow equipment, in particular to a blow molding die assembly frame device of the injection-stretch-blow equipment, which comprises a base, the base is provided with a fixing plate; a first fixed mold is arranged on one side of the fixed plate; a second fixed mold is arranged on the other side of the fixed plate; a first movable frame, a second movable frame and a driving frame are arranged on the base in a sliding manner; the first movable frame is provided with a first movable mold; the second movable frame is provided with a second movable mold; the first movable frame is fixedly connected with the driving frame; and an opening and closing assembly is arranged between the driving frame and the second movable frame. According to the utility model, two groups of heated parisons are placed between the first movable mold and the first fixed mold and between the second movable mold and the second fixed mold, so that the blow molding efficiency of the parisons is improved; after blow molding is completed, the first movable mold and the first fixed mold are opened and the second movable mold and the second fixed mold are opened at the same time through the opening and closing assembly, so that a blow-molded product is taken out.

Description

Technical Field

[0001] The utility model relates to the technical field of injection stretch blow molding equipment, and particularly relates to a blow molding die clamping frame device of injection stretch blow molding equipment. Background Art

[0002] The injection stretch blow molding equipment is a kind of equipment widely used in the production of plastic hollow products. Its process mainly includes steps such as injection molding, heating, stretching and blow molding. This equipment first uses an injection machine to inject molten plastic into an injection mold, and forms a transparent bottomed preform through rapid cooling. The key in this stage is to ensure the uniform cooling and forming of the preform to guarantee its transparency and physical properties.

[0003] In the next working station, the preform needs to be heated to uniformly raise its internal and external temperatures to an appropriate stretching temperature; after being heated to a predetermined temperature, the equipment will stretch the preform and fill it with compressed air to expand the preform into the required hollow product.

[0004] However, the current injection stretch blow molding equipment generally performs injection stretch blow molding on a group of preforms, which has the problem of low efficiency. And since only a group of preforms can be fixed during the blow molding process, it is difficult to improve the overall working efficiency. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a blow molding die clamping frame device of injection stretch blow molding equipment aiming at the above deficiencies in the prior art.

[0006] The purpose of the utility model is realized through the following technical solutions: A blow molding die clamping frame device of injection stretch blow molding equipment includes a base; a fixed plate is provided on the base; a first fixed die is provided on one side of the fixed plate; a second fixed die is provided on the other side of the fixed plate;

[0007] A first movable frame, a second movable frame and a driving frame are slidably provided on the base; the second movable frame is movably arranged between the first movable frame and the driving frame;

[0008] The fixed plate is arranged between the first movable frame and the second movable frame; the first movable frame is provided with a first movable die cooperating with the first fixed die; the second movable frame is provided with a second movable die cooperating with the second fixed die; the first movable frame is fixedly connected with the driving frame; an opening and closing assembly is arranged between the driving frame and the second movable frame.

[0009] The utility model is further arranged such that a connecting rod is arranged between the first movable frame and the driving frame; the second movable frame is slidably arranged on the connecting rod.

[0010] The present utility model is further configured such that the opening and closing assembly includes a first rack, a second rack, a synchronous seat provided on the base, and a synchronous wheel rotatably provided on the synchronous seat; the synchronous seat is provided between the driving frame and the second movable frame;

[0011] The first rack is provided on the driving frame; the second rack is provided on the second movable frame; the first rack and the second rack are respectively engaged with both ends of the synchronous wheel.

[0012] The present utility model is further configured such that the opening and closing assembly further includes a first large oil cylinder and a second large oil cylinder both provided on the driving frame; the output ends of the first large oil cylinder and the second large oil cylinder are respectively connected to the second movable frame.

[0013] The present utility model is further configured such that the opening and closing assembly further includes a small oil cylinder provided on the driving frame; the small oil cylinder is provided between the first large oil cylinder and the second large oil cylinder; the output end of the small oil cylinder is connected to the second movable frame.

[0014] The present utility model is further configured such that the connecting rod, the first rack, and the second rack are arranged in parallel.

[0015] The present utility model is further configured such that sliders are provided at the bottom of the base.

[0016] The present utility model is further configured such that a triggering assembly is provided between the first movable frame and the second movable frame.

[0017] The present utility model is further configured such that the triggering assembly includes a first connecting rod, a second connecting rod, and a triggering block; one end of the first connecting rod is hinged to the first movable frame; the other end of the first connecting rod is hinged to one side of the triggering block; one end of the second connecting rod is hinged to the second movable frame; the other end of the second connecting rod is hinged to the other side of the triggering block.

[0018] The beneficial effects of the present utility model: The present utility model places two groups of heated preforms between the first movable mold and the first fixed mold and between the second movable mold and the second fixed mold, thereby improving the blow molding efficiency of the preforms; after blow molding is completed, through the opening and closing assembly, the first movable mold and the first fixed mold are opened and at the same time the second movable mold and the second fixed mold are opened, thereby taking out the blow molded product. Description of the Drawings

[0019] The utility model is further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation to the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the following drawings.

[0020] Figure 1 is a schematic structural diagram of the present utility model;

[0021] Figure 2 It is a schematic structural view of another perspective of the present utility model;

[0022] Wherein: 1. Base; 11. Slide block; 2. Fixed plate; 21. First fixed mold; 22. Second fixed mold; 3. First movable frame; 31. First movable mold; 4. Second movable frame; 41. Second movable mold; 5. Driving frame; 51. First large oil cylinder; 52. Second large oil cylinder; 53. Small oil cylinder; 6. Connecting rod; 71. Synchronous seat; 72. Synchronous pulley; 73. First rack; 74. Second rack; 81. First connecting rod; 82. Second connecting rod; 83. Trigger block. Specific embodiments

[0023] The present utility model will be further described in conjunction with the following embodiments.

[0024] From Figures 1 to 2 it can be seen that the blow molding clamping die frame device of an injection stretch blow molding equipment described in this embodiment includes a base 1; the base 1 is provided with a fixed plate 2; one side of the fixed plate 2 is provided with a first fixed mold 21; the other side of the fixed plate 2 is provided with a second fixed mold 22;

[0025] The base 1 is slidably provided with a first movable frame 3, a second movable frame 4 and a driving frame 5; the second movable frame 4 is movably arranged between the first movable frame 3 and the driving frame 5;

[0026] The fixed plate 2 is arranged between the first movable frame 3 and the second movable frame 4; the first movable frame 3 is provided with a first movable mold 31 that cooperates with the first fixed mold 21; the second movable frame 4 is provided with a second movable mold 41 that cooperates with the second fixed mold 22; the first movable frame 3 is fixedly connected to the driving frame 5; an opening and closing assembly is arranged between the driving frame 5 and the second movable frame 4.

[0027] Specifically, for the blow molding clamping die frame device of the injection stretch blow molding equipment described in this embodiment, the opening and closing assembly is used to make the first movable mold 31 and the first fixed mold 21 perform mold clamping while the second movable mold 41 and the second fixed mold 22 perform mold clamping, and can also make the first movable mold 31 and the first fixed mold 21 perform mold opening while the second movable mold 41 and the second fixed mold 22 perform mold opening.

[0028] Through the above settings, two groups of heated preforms can be placed between the first movable mold 31 and the first fixed mold 21 and between the second movable mold 41 and the second fixed mold 22, thereby improving the blow molding efficiency of the preforms; after blow molding, through the opening and closing assembly, the first movable mold 31 and the first fixed mold 21 are opened while the second movable mold 41 and the second fixed mold 22 are opened, so as to take out the blow molded products.

[0029] In the blow molding clamping die holder device of the injection stretch blow molding equipment described in this embodiment, a connecting rod 6 is provided between the first movable frame 3 and the driving frame 5; the second movable frame 4 is slidably arranged on the connecting rod 6.

[0030] Specifically, through the above arrangement, it can play a guiding role in the movement of the second movable frame 4 and enable the second movable frame 4 to move between the first movable frame 3 and the driving frame 5.

[0031] In the blow molding clamping die holder device of the injection stretch blow molding equipment described in this embodiment, the opening and closing assembly includes a first rack 73, a second rack 74, a synchronous seat 71 arranged on the base 1, and a synchronous wheel 72 rotatably arranged on the synchronous seat 71; the synchronous seat 71 is arranged between the driving frame 5 and the second movable frame 4;

[0032] The first rack 73 is arranged on the driving frame 5; the second rack 74 is arranged on the second movable frame 4; the first rack 73 and the second rack 74 are respectively engaged with both ends of the synchronous wheel 72.

[0033] In the blow molding clamping die holder device of the injection stretch blow molding equipment described in this embodiment, the opening and closing assembly further includes a first large oil cylinder 51 and a second large oil cylinder 52 both arranged on the driving frame 5; the output ends of the first large oil cylinder 51 and the second large oil cylinder 52 are respectively connected to the second movable frame 4.

[0034] Specifically, in the blow molding clamping die holder device of the injection stretch blow molding equipment described in this embodiment, when it is necessary to perform mold clamping between the first movable mold 31 and the first fixed mold 21 and at the same time perform mold clamping between the second movable mold 41 and the second fixed mold 22, the first large oil cylinder 51 and the second large oil cylinder 52 of the driving frame 5 drive the second movable frame 4 to move towards the direction close to the fixed plate 2, so that the second movable mold 41 of the second movable frame 4 is clamped with the second fixed mold 22; in addition, when the second movable frame 4 moves towards the direction close to the fixed plate 2, since the first rack 73 and the second rack 74 are respectively engaged with both ends of the synchronous wheel 72, the driving frame 5 and the second movable frame 4 can move synchronously and in opposite directions, and the driving frame 5 is fixedly connected to the first movable frame 3, so the first movable frame 3 and the second movable frame 4 can move synchronously and in opposite directions, that is, when the second movable frame 4 moves towards the direction close to the fixed plate 2, the first movable frame 3 will also move towards the direction close to the fixed plate 2 at the same time, so that the first movable mold 31 of the first movable frame 3 is clamped with the first fixed mold 21.

[0035] When the first movable mold 31 needs to be separated from the first fixed mold 21 and the second movable mold 41 needs to be separated from the second fixed mold 22 simultaneously, the first large oil cylinder 51 and the second large oil cylinder 52 of the driving frame 5 drive the second movable frame 4 to move away from the fixed plate 2, so that the second movable mold 41 of the second movable frame 4 is separated from the second fixed mold 22; since the first movable frame 3 and the second movable frame 4 can move synchronously and in opposite directions, the first movable frame 3 will also move away from the fixed plate 2 simultaneously, so that the first movable mold 31 of the first movable frame 3 is separated from the first fixed mold 21.

[0036] For the blow molding clamping frame device of an injection stretch blow molding equipment described in this embodiment, the opening and closing assembly further includes a small oil cylinder 53 provided on the driving frame 5; the small oil cylinder 53 is provided between the first large oil cylinder 51 and the second large oil cylinder 52; the output end of the small oil cylinder 53 is connected to the second movable frame 4. Specifically, through the above settings, the speeds of the first large oil cylinder 51 and the second large oil cylinder 52 can be increased.

[0037] For the blow molding clamping frame device of an injection stretch blow molding equipment described in this embodiment, the connecting rod 6, the first rack 73 and the second rack 74 are arranged in parallel. Through the above settings, the overall structure is stable and reliable.

[0038] For the blow molding clamping frame device of an injection stretch blow molding equipment described in this embodiment, a slider 11 is provided at the bottom of the base 1. Specifically, through the above settings, the entire base 1 can be taken out of the injection stretch blow molding equipment.

[0039] For the blow molding clamping frame device of an injection stretch blow molding equipment described in this embodiment, a trigger assembly is provided between the first movable frame 3 and the second movable frame 4. For the blow molding clamping frame device of an injection stretch blow molding equipment described in this embodiment, the trigger assembly includes a first connecting rod 81, a second connecting rod 82 and a trigger block 83; one end of the first connecting rod 81 is hinged to the first movable frame 3; the other end of the first connecting rod 81 is hinged to one side of the trigger block 83; one end of the second connecting rod 82 is hinged to the second movable frame 4; the other end of the second connecting rod 82 is hinged to the other side of the trigger block 83.

[0040] Specifically, when the first movable frame 3 and the second movable frame 4 approach, under the action of the first connecting rod 81 and the second connecting rod 82, the height of the trigger block 83 is relatively low; when the first movable frame 3 and the second movable frame 4 move away, under the action of the first connecting rod 81 and the second connecting rod 82, the trigger block 83 moves upward, so as to trigger an external mechanism.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting the protection scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A blow molding clamping frame device for an injection stretch blow molding device, characterized in that: It comprises a base; the base is provided with a fixing plate; one side of the fixing plate is provided with a first fixing mold; the other side of the fixing plate is provided with a second fixing mold; The base is slidably provided with a first movable frame, a second movable frame and a driving frame; the second movable frame is movably arranged between the first movable frame and the driving frame; The fixed plate is arranged between the first movable frame and the second movable frame; the first movable frame is provided with a first movable mold cooperating with the first fixed mold; the second movable frame is provided with a second movable mold cooperating with the second fixed mold; the first movable frame is fixedly connected to the driving frame; an opening and closing component is provided between the driving frame and the second movable frame.

2. A blow molding clamping frame device for injection stretch blow molding equipment according to claim 1, characterized in that: A connecting rod is arranged between the first movable frame and the driving frame; and the second movable frame is slidably arranged on the connecting rod.

3. A blow molding clamping frame device for injection stretch blow molding equipment according to claim 2, characterized in that: The opening and closing assembly includes a first rack, a second rack, a synchronous seat arranged on the base, and a synchronous wheel rotatably arranged on the synchronous seat; the synchronous seat is arranged between the driving frame and the second movable frame; The first rack is arranged on the driving frame; the second rack is arranged on the second movable frame; the first rack and the second rack are respectively meshed with two ends of the synchronous wheel.

4. A blow molding clamping frame device for injection stretch blow molding equipment according to claim 3, characterized in that: The opening and closing assembly also includes a first large oil cylinder and a second large oil cylinder, both of which are arranged on the driving frame; the output end of the first large oil cylinder and the output end of the second large oil cylinder are respectively connected to the second movable frame.

5. The blow molding clamping frame device of the injection stretch blow molding equipment according to claim 4, characterized in that: The opening and closing assembly also includes a small oil cylinder arranged on the driving frame; the small oil cylinder is arranged between the first large oil cylinder and the second large oil cylinder; the output end of the small oil cylinder is connected to the second movable frame.

6. The blow molding clamping frame device of the injection stretch blow molding equipment according to claim 3, characterized in that: The connecting rod, the first rack and the second rack are arranged in parallel.

7. The blow molding clamping frame device of the injection stretch blow molding equipment according to claim 1, characterized in that: A sliding block is arranged at the bottom of the base.

8. The blow molding clamping frame device of the injection stretch blow molding equipment according to claim 1, characterized in that: A trigger component is provided between the first movable frame and the second movable frame.

9. A blow molding clamping frame device for injection stretch blow molding equipment according to claim 8, characterized in that: The trigger assembly includes a first connecting rod, a second connecting rod and a trigger block; one end of the first connecting rod is hinged to the first movable frame; the other end of the first connecting rod is hinged to one side of the trigger block; one end of the second connecting rod is hinged to the second movable frame; the other end of the second connecting rod is hinged to the other side of the trigger block.

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