JPH08300448A - Hollow molding simultaneous filling machine - Google Patents

Abstract

PURPOSE: To enhance workability while stabilizing and enhancing quality by intermittently and successively sending an extruded parison to a catching part, a blow molding part, a burr removing part, a fluid filling part, a plug inserting part and a cap clamping part. CONSTITUTION: A mold grasps a cut parison to slide and moves from a first station 51 to a second station 52. Air is blown into the parison 8 from above by a blow nozzle 13 in the second station 52 to mold a container 32. Next, a holder grasps the container 32 to move and the burr of the container 32 is removed at a third station 53 and the container 32 is moved to a fourth station 54 to be filled with a material to be filled. The filled container 32 is moved to a fifth station 55 from the fourth station 54 and a plug is inserted in the mouth of the container 32. The plugged container 32 filled with a liquid is advanced to a sixth station to be subjected to cap clamping work.

Description

Detailed Description of the Invention

[0001]

[Industrial application] Molding and filling of plastic containers, and cap closing. Simultaneously with molding, deburring of the mouth and bottom of the container, liquid material,
The container is filled with fluid materials such as powders and granules, and the insertion of the inner plug into the mouth and the tightening of the cap are performed simultaneously within one cycle. It can be used for all plastic containers and has a wide range of applications. .

For example, for medicine, cosmetics, daily kitchen,
It can be used in all fields such as daily bathroom and toilet, food, seasonings, liquor, garden products, pet products, etc.

[0003]

2. Description of the Related Art A hollow molding machine for molding only a plastic container has been conventionally used, and the completed container is independently filled by a completely different machine or process, and an inner plug is inserted and a cap is closed.

No one has incorporated several working steps into a blow molding machine as in the present invention.

[0005]

By simultaneously performing several kinds of work steps described in the prior art in the same machine, the workability thereof is improved, the quality thereof is stably improved, and the cost of the product is remarkably reduced. It is intended for.

By adopting this machine, it is possible to expect a significant cost reduction by saving labor in a factory, improving work area efficiency, reducing transportation expenses, personnel expenses, material warehouse expenses and the like.

[0007]

[Means for Solving the Problems] A catch portion (first station 51) of an extruded parison, a blow molding portion (second station 52), a deburring portion (third station 53), and a fluid material filling portion ( The fourth station 54), the inside plug insertion portion (fifth station 55), and the cap fastening portion (sixth station 56) are intermittently sent one after another to complete these several kinds of work at the same time within one cycle. be able to.

[0008]

The operation of the present invention will be described with reference to the drawings. The present invention utilizes the conventional hollow molding mechanism to simultaneously form, deburr, fill, and insert the inner plug of the container on the intermittent feed.
The cap is tightened.

1 and 2 are a side view and a front view of this machine, in which the power driven by the main motor 1 passes through the V-belt 2 and reaches the speed reducer 3 to rotate the screw 4. The plastic raw material is supplied to the screw portion from the root of the raw material hopper 5, heated by several heaters 6, and extruded as a parison (melting tube) 8 from the head 7. The parison 8 is extruded between the halves of the mold 12 to be clamped by the two hydraulic cylinders 57 for clamping, and at the same time cut by the hot cutter 9.

The mold slides diagonally together with the clamping device 11 along the slide rail 10 while sandwiching the cut parison 8, and the first station 51 to the second station 5
The slide hydraulic cylinder 49 moves to the position 2. The first station 51 is a position where the parison 8 is sandwiched by the mold 12 and cut.

At the second station 52, the blowing nozzle 13 descends from the upper part of the parison 8 having a round hole sandwiched by the moved mold 12 by the driving air cylinder 14.
Air is blown in to mold the container 32. The mold 12 opens with the blowing nozzle 13 inserted in the mouth of the molded container 32, and the mold 12 is diagonally raised to the original position of the first station 51.

The reason why the die moves up and down obliquely is that the continuously extruded parison 8 is a hot cutter 9.
If the mold 12 does not descend obliquely as soon as it is cut by, the tip of the parison 8 that is extruded one after another comes into contact with the upper surface of the mold,
This is because the hanging parison 8 swings and is not stable.

The container 32, which has been molded at the second station 52, hangs and maintains its position even when the mold 12 is opened by the blowing noble 13.

When the mold 12 moves to the original position of the first station 51 and the next clamping is completed, the container 32 is clamped by the holder 48 attached to the auxiliary clamping plate 18 at the second station 52. At the same time, the blowing noble is raised.

Next, the holder 48 moves to the position of the third station 53 while holding the container 32 in between.

In blow molding, the upper and lower burrs 22, 2
Since 3 can be done, this deburring is done at the 3rd station 5
I will do it in 3. The upper burr 22 is placed with the mouth of the container 32 in contact with the tip of an upper burr removing adapter 19 fixed to one auxiliary clamping plate 18.
The burr 22 is stripped off by projecting the upper deburring pusher 20 fixed to the movable pusher plate 21 connected to the tip of the deburring air cylinder 24.

The lower deburring 23 is also removed by the lower deburring adapter 24 and the lower deburring pusher 49.
With the completion of this upper deburring and lower deburring, the container 3
2 will be completed.

The work at the third station 53 is performed by the pin 25 attached to the tip of the hold air cylinder 25 for fixing the container 32 immediately before the holder 48 is opened.
Is inserted into the mouth of the container 32 and held at a fixed position as it is, while the holder 48 attached to the auxiliary clamping plate 18 is opened and retracted.

On the other hand, the mold clamping device 11 and the auxiliary clamp device 4
3 is connected with the crank 15 in a free state,
Auxiliary clamp device 4 along with diagonal up and down movement of the form clamping device 11
3 also moves horizontally back and forth along the slide bar 17.

In this auxiliary clamp device 43, a half mold 16 for sandwiching the molded product 32 is set on the left and right. Opening and closing of this simple mold 16 is the mold 12
It is done with the air cylinder 27 at almost the same timing as opening and closing.

Naturally, the holder 48 located at the third station 53 moves to the second station 52, and the simple mold 16A located at the fourth station 54 moves to the third station 53.

Next, at the third station 53, the auxiliary clamping plate (large) 59 is tightened, and the container 32 hanging from the pin 25 is sandwiched by the simple mold 16A, and at the same time, the container 32 is left there and only the pin 25 is raised. To do.

At this time, the mold 12 sandwiches the parison 8 at the first station, and the blowing nozzle 1 at the second station.
No. 3 is blown with descending air for molding.

Container 3 sandwiched at this third station
2 moves to the 4th station. At the fourth station, the filling liquid 58 is filled in the container 32.

As soon as the filling nozzle 26 moves downward in the filling air cylinder 27 and is inserted into the container 32, the measuring cylinder 29 attached to the tip of the measuring air cylinder 30 rises and is prepared outside the machine. A predetermined amount of the liquid 58 to be filled in the liquid tank 28 is sucked up, weighed, and immediately descends to complete the injection from the filling nozzle 26 into the container 32.

The flow direction of the liquid 58 to be filled flows in one direction by the two check valves 51 in front of and behind the measuring cylinder 29 to prevent a back flow.

FIG. 7 shows the filling mechanism especially for liquids close to water.

The liquid 58 to be filled may be liquid, powder, granules or the like. In this case, of course, the filling mechanism will be replaced.

The filling nozzle 26 inserted at the fourth station 54 is opened after the completion of filling, the simple mold 16 is opened, and the simple nozzle 16 is moved to the third station 53 to repeat the backward movement and forward movement as described above. A container 32 containing a filling material
Move from 4th station 54 to 5th station 55.

At the fifth station 55, the inner plug 33 is inserted into the mouth of the container 32. First, the aligned inner plugs are discharged from the parts feeder 31 for inner plugs, and the rotary arm 34 with the vacuum cup 35 grips the inner plugs by vacuum, and the rotary cylinder reaches the mouth of the container 32 at the fifth station 55. Carried by 36.

When the inner stopper 33 reaches right above the mouth of the container 32, the inner stopper air cylinder 37 pushes downward, and the inner stopper 33 is opened.
Slightly push the bottom edge of the to cut the vacuum.

The rotating arm 34 returns to its original position and waits for the next work. The inner plug 33 placed at the mouth of the container is completely inserted into the mouth of the molded product 32 by the inner plug pusher 38 attached to the tip of the air cylinder 39 for pushing the inner plug and completed.

Similarly, the molded product 32 filled with the liquid and having the inner stopper inserted advances to the sixth station 56 to start the cap tightening work.

This cap tightening is exactly the same as the work of inserting the inner plug. The cap 41 aligned from the cap part feeder 40 is sandwiched by the vacuum cups 43 attached to the rotary arms 42 by the vacuum, and the rotary cylinder 44. Carry it right above the mouth of molded product 32 and leave it there.

The cap rotation cup 45 rotated by the cap rotation motor 46 attached to the tip of the cap air cylinder 47 is rotated downward by the cap air cylinder 47, and the cap 4 is rotated.
Screw 1 into the screw part of container 32 and complete.

The container 32 completed in this way is ready for the next work process such as labeling and packaging.

[0037]

[Example] This machine was adopted as a vitalizing agent and a fertilizer diluting solution using an ampoule-shaped container for home gardening.

[0038]

EFFECTS OF THE INVENTION By adopting this machine, the cost can be reduced by about 30% due to the labor saving, the transportation between the work processes and the unnecessary material warehouse. Also in terms of quality, the number of defective products was reduced and the stability was improved.

[Brief description of drawings]

FIG. 1 is a side view of the machine.

FIG. 2 is a front view of this machine.

FIG. 3 is a plan view of the machine, a molding unit, and a deburring unit.

FIG. 4 is a plan view of the machine, a filling section, an inner plug, and a cap fastening section.

5A and 5B are a sectional plane view and a side view showing an example of deburring.

FIG. 6 is a view of a molded product with burrs formed at the time of completion of molding.

FIG. 7 is a side view and a principle view showing an embodiment of filling.

FIG. 8 is a plan view of the machine.

FIG. 9 is a plan view showing an embodiment of supplying the inner plug of the inner plug insertion portion.

FIG. 10 is a side view showing an embodiment of supplying and inserting the inner plug of the inner plug insertion portion.

FIG. 11 is a plan view showing an example of cap supply of a cap tightening portion.

FIG. 12 is a side view showing an embodiment of cap supply and screwing of a cap tightening portion.

[Explanation of symbols]

1. Extruder main motor 2. V-belt 3. Reducer for extruder 4. Screw 5. Raw material hopper 6. Heater 7. Head 8. Parison (melted tube) 9. Hot cutter 10. Slide rail 11. Forming device 12. Mold 13. Suction nozzle 14. Driving air cylinder 15. Crank 16. Simple mold 17. Slide bar 18. Auxiliary clamping plate 19. Upper deburring adapter 20. Upper deburring pusher 21. Movable pusher plate 22. Upper burr 23. Lower burr 24. Air cylinder 25. Check valve 26. Filling nozzle 27. Filling air cylinder 28. Liquid tank 29. Measuring cylinder 30. Measuring air cylinder 31. Parts feeder for inner stopper 32. Container (molded product) 33. Inner stopper 34. Rotating arm for inner plug 35. Vacuum cup for inner stopper 36. Rotating cylinder for inner plug 37. Air cylinder for inner stopper 38. Inner stopper pusher 39. Air cylinder for pushing inner stopper 40. Parts feeder for caps 41. Cap 42. Rotating arm for cap 43. Auxiliary clamp device 44. Rotating cylinder for cap 45. Rotating cup for cap 46. Rotating motor for cap 47. Air cylinder for cap 48. Holder 49. Hydraulic cylinder for slide 51. 1st station center line (extruded parison catch) 52. Second station center line (blow molding section) 53. Center line of 3rd station (deburring section) 54. 4th station center line (liquid injection part) 55. 5th station center line (interior plug insertion part) 56. 6th station center line (cap tightening part) 57. Hydraulic cylinder for clamping 58. Liquid to be filled 59. Auxiliary clamping plate (large)

Claims (1)

[Claims] 1. A parison (melting tube) extruded from a tip end of an extruding machine is sandwiched between molds, and at the same time, the parison is cut by a cutter and is slid at an angle so that the parison is extruded continuously. Use the power of the diagonal slide to escape the tip for horizontal intermittent feed, and complete the hollow molding-deburring-filling-intermediate plug insertion-cap tightening-other work at each station within one cycle time. Hollow molding simultaneous filling machine characterized by.