CN112497714B

CN112497714B - Blow molding machine

Info

Publication number: CN112497714B
Application number: CN202011187393.3A
Authority: CN
Inventors: 吴嘉文; 李云
Original assignee: Dongguan Yue'er Industrial Co ltd
Current assignee: Dongguan Yue'er Industrial Co ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2024-01-12
Anticipated expiration: 2040-10-30
Also published as: CN112497714A

Abstract

The invention relates to the technical field of blow molding embryo processing, in particular to a blow molding forming machine which comprises a blow molding tank, a discharge chute, a feed inlet, a separation disc, a discharge mechanism and a limiting mechanism, wherein the discharge mechanism is arranged on the blow molding tank; injection of plastic melt into the blown down tank through the feed inlet is inside, through continuously pouring plastic melt into the inside of processing tank, thereby make the inside hydraulic pressure increase of blown down tank, promote pushing cylinder through plastic melt and slide in the cylinder hole in the separation dish, inside plastic melt gets into the blowing jar through the discharge gate of pushing cylinder, screen plastic melt with the help of the discharge gate, avoid the plastic solution of condensation to get into the blowing jar inside, when stopping pouring plastic melt into the inside of processing tank, pushing cylinder will leak the plastic melt to the plastic melt and slide downwards under the action of gravity, thereby avoid plastic melt to flow into the blowing jar in, the problem that because the blowing blows plastics thin, and the plastic of condensation can block in the bottle of blow molding, thereby lead to the plastic bottle of blowing out to produce the leakage easily is solved.

Description

Blow molding machine

Technical Field

The invention relates to the technical field of blow molding embryo processing, in particular to a blow molding machine.

Background

Stretch blow molding is an important method for producing plastic bottles, and the stretch blow molding process is a blow molding process by biaxial orientation stretching, and is developed on the basis of a general extrusion blow molding process and injection blow molding process.

However, in the process of drawing and blowing, injection molding of a preformed blank is required to be performed firstly and then the blank is taken out for blowing in a mold, the blank is required to be injected into a cylindrical mold, a part of the plastic melt injected firstly is easy to be partially coagulated in the process of injecting raw materials, and the plastic is blown thin by blowing, so that coagulated plastic is clamped in the bottle formed by blowing, and the problem that the blown plastic bottle is easy to leak is caused.

Disclosure of Invention

The invention provides a blow molding machine aiming at the problems in the prior art.

The technical scheme adopted for solving the technical problems is as follows: a blow molding machine comprises a blow molding tank, a discharge chute, a feed inlet, a separation disc, a discharge mechanism and a limiting mechanism; the inner wall of the blow molding tank is fixedly connected with a separating disc, a cylindrical hole is vertically formed in the separating disc, the surface of the feeding hole is communicated with the blow molding tank, the feeding hole and the discharging groove are positioned on the same straight line, and a discharging mechanism is plugged in the discharging groove; the discharging mechanism comprises a mounting frame, a scraper, a mounting ring, a pushing cylinder, a baffle, a discharging hole, a limiting ring, a cross and a connecting rod, wherein the mounting frame is a rectangular frame, the surface of the mounting frame is in sliding connection with the inner wall of the discharging groove, the mounting ring is fixedly connected with the inside of the mounting frame, the pushing cylinder is connected with the inner wall of the mounting ring in a sliding manner, the upper end of the pushing cylinder is sealed, the surface of the pushing cylinder is uniformly provided with the discharging hole, the baffle is fixedly connected with the position of the mounting frame outside the blow molding tank, and the surface of the baffle is fixedly connected with the blow molding tank; and a limiting mechanism is arranged between the bottom end of the push cylinder and the mounting frame.

Preferably, the inside fixedly connected with connecting rod of pushing away a section of thick bamboo, the even vertical setting of connecting rod is in the inside of pushing away a section of thick bamboo, the bottom fixedly connected with spacing ring of connecting rod, spacing ring is with the help of connecting rod and pushing away a section of thick bamboo fixed connection.

Preferably, the side wall of the pushing cylinder is provided with an air inlet matched with the air inlet, the air inlet is communicated with the air inlet, an air inlet plate is arranged in the pushing cylinder, an air storage cavity is arranged above the air inlet plate, a rotating pin fixed at the top of the pushing cylinder is arranged above the air storage cavity, the rotating pin penetrates through a pin hole in the flip, the rotating pin is movably connected with the flip, two torsion springs are sleeved on the surface of the rotating pin, each torsion spring is matched with one flip, and the flip is provided with two arc structures.

Preferably, the bottom of the limiting ring is located at the bottom of the pushing barrel and is sleeved with five concentric rings, the upper end of the limiting ring is fixedly connected with a cross, and the upper end of the cross is fixedly connected with a connecting rod.

Preferably, three scrapers are arranged on two vertical surfaces of the mounting frame, two ends of each scraper are fixedly connected with the upper arm and the lower arm of the mounting frame respectively, each scraper is of an arc sheet structure, and one end opening of the scraper, which is far away from the discharging mechanism, is contacted with the inner wall of the discharging groove.

Preferably, the lower part of pushing away the section of thick bamboo is equipped with stop gear, stop gear includes installation arm, mounting disc, spring, slide bar and stopper, the port of installation arm and the end arm fixed connection of installation frame, the one end fixedly connected with mounting disc of mounting frame is kept away from to the installation arm, the upper end fixedly connected with spring of mounting disc, the one end fixedly connected with stopper of mounting disc is kept away from to the spring.

Preferably, the stopper is triangle-shaped structure, and stopper closed angle orientation push away a section of thick bamboo, the inside of stopper is vertical to be inserted and is equipped with four slide bars, the surface and the stopper sliding connection of slide bar, the bottom and the mounting disc fixed connection of slide bar.

The invention has the beneficial effects that:

(1) According to the blow molding machine, plastic melt is injected into the discharge tank through the feed inlet, and is continuously poured into the treatment tank, so that the hydraulic pressure in the discharge tank is increased, the pushing barrel is pushed to slide in the cylindrical hole in the separating disc through the plastic melt, the plastic melt enters the blow molding tank through the discharge outlet of the pushing barrel, the plastic melt is screened through the discharge outlet, condensed plastic solution is prevented from entering the blow molding tank, when the plastic melt is stopped from being poured into the treatment tank, the pushing barrel leaks the condensed plastic melt to slide downwards under the action of gravity, and the plastic melt is prevented from flowing into the blow molding tank, so that the problem that the condensed plastic is blocked in the blow molding bottle due to the fact that the blow molding is used for blowing the plastic is easy to leak is solved.

(2) According to the blow molding forming machine, when the push cylinder needs to be maintained, the push cylinder is pressed downwards at the upper end of the blow molding tank, so that the push cylinder downwards extrudes the limiting block, the limiting block downwards slides under the pushing of the push cylinder, the push cylinder downwards slides along with the limiting block, the sliding rod slides into the push cylinder through a gap between limiting rings, and the push cylinder slides through a separating disc to be separated from the clamping of the blow molding tank, so that a discharge mechanism is pulled out through removing a bolt between the baffle plate and the discharge chute to achieve the effect of maintaining the push cylinder.

Drawings

The invention will be further described with reference to the drawings and examples.

FIG. 1 is a schematic view of the overall structure provided by the present invention;

FIG. 2 is a schematic view of an internal structure provided by the present invention;

FIG. 3 is a schematic diagram of a discharging mechanism provided by the invention;

FIG. 4 is a schematic diagram of a push cylinder according to the present invention;

FIG. 5 is an enlarged schematic structural view of the structure shown in FIG. 3A according to the present invention;

FIG. 6 is a schematic view of a push barrel according to the present invention;

FIG. 7 is a schematic diagram of a flip cover structure of the present invention;

fig. 8 is a schematic view showing a connection structure of the pivot pin and the flip cover of the present invention.

In the figure: 1. blow molding the tank; 2. a discharge chute; 3. a feed inlet; 4. a separation disc; 5. a discharging mechanism; 51. a mounting frame; 52. a scraper; 53. a mounting ring; 54. pushing a cylinder; 541. a rotary pin; 542. an air inlet hole; 543. an air storage cavity; 544. a flip cover; 545. an air inlet plate; 546. a pin hole; 547. a torsion spring; 55. a baffle; 56. a discharge port; 57. a limiting ring; 58. a cross; 59. a connecting rod; 6. a limiting mechanism; 61. a mounting arm; 62. a mounting plate; 63. a spring; 64. a slide bar; 65. a limiting block; 7. and an air inlet hole.

Detailed Description

The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.

As shown in fig. 1 to 8, the blow molding machine of the invention comprises a blow molding tank 1, a discharge chute 2, a feed inlet 3, a separation disc 4, a discharge mechanism 5 and a limiting mechanism 6; an air inlet 7 is formed in the side wall of the blow molding tank 1, a separation disc 4 is fixedly connected to the inner wall of the blow molding tank 1, a cylindrical hole is vertically formed in the separation disc 4, the surface of a feed inlet 3 is communicated with the blow molding tank 1, the surface of the feed inlet 3 is communicated with the blow molding tank 1, the feed inlet 3 and a discharge chute 2 are positioned on the same straight line, and a discharge mechanism 5 is plugged in the discharge chute 2; the discharging mechanism 5 comprises a mounting frame 51, a scraper 52, a mounting ring 53, a pushing cylinder 54, a baffle 55, a discharging hole 56, a limiting ring 57, a cross 58 and a connecting rod 59, wherein the mounting frame 51 is a rectangular frame, the surface of the mounting frame 51 is in sliding connection with the inner wall of the discharging groove 2, the mounting ring 53 is fixedly connected with the inside of the mounting frame 51, the pushing cylinder 54 is in sliding connection with the inner wall of the mounting ring 53, the upper end of the pushing cylinder 54 is sealed, the surface of the pushing cylinder 54 is uniformly provided with the discharging hole 56, the baffle 55 is fixedly connected with the position of the mounting frame 51 outside the blow molding tank 1, and the surface of the baffle 55 is fixedly connected with the blow molding tank 1; a limiting mechanism 6 is arranged between the bottom end of the push cylinder 54 and the mounting frame 51; the plastic melt is injected into the discharge chute 2 through the feed inlet 3, and is continuously poured into the treatment chute, so that the hydraulic pressure in the discharge chute 2 is increased, the push barrel 54 is pushed by the plastic melt to slide in the cylindrical hole in the separation disc 4, the plastic melt enters the blow molding tank 1 through the discharge outlet 56 of the push barrel 54, the plastic melt is screened by the discharge outlet 56, the condensed plastic solution is prevented from entering the blow molding tank 1, and when the plastic melt is stopped from being poured into the treatment chute, the push barrel 54 leaks the plastic melt and slides downwards under the action of gravity, so that the plastic melt is prevented from flowing into the blow molding tank 1, the problem that the condensed plastic can be blocked in the blow molding bottle due to blowing, and the plastic bottle which is blown out easily leaks is solved.

Specifically, the inside fixedly connected with connecting rod 59 of push away a section of thick bamboo 54, connecting rod 59 evenly vertical setting is in the inside of push away a section of thick bamboo 54, and the bottom fixedly connected with spacing ring 57 of connecting rod 59, spacing ring 57 are with the help of connecting rod 59 and push away a section of thick bamboo 54 fixed connection, and the plastics that will condense is stopped in push away a section of thick bamboo 54 outside through the spacing ring 57 that is equipped with in push away a section of thick bamboo 54 bottom to the plastics melt that gets into push away a section of thick bamboo 54, avoids the plastics that condenses to get into the inside easy jam push away a section of thick bamboo 54 of push away a section of thick bamboo 54.

Specifically, the side wall of the push cylinder 54 is provided with an air inlet 542 adapted to the air inlet 7, the air inlet 7 is communicated with the air inlet 542, an air inlet plate 545 is arranged in the push cylinder 54, an air storage cavity 543 is arranged above the air inlet plate 545, a rotating pin 541 fixed at the top of the push cylinder 54 is arranged above the air storage cavity 543, the rotating pin 541 penetrates through a pin hole in the flip 544, the rotating pin 541 is movably connected with the flip 544, two torsion springs 547 are sleeved on the surface of the rotating pin 541, each torsion spring 547 is adapted to one flip 544, the flip 544 is provided with two torsion springs, and the flip 544 is of an arc structure. Can play the function of admitting air through the inlet port 542 that sets up, can let the gas storage that enters into the air storage chamber 543 inside from inlet port 542 through the air inlet plate 545 that sets up, overturn under gaseous extrusion through the flip 544 that sets up, thereby make flip 544 can upwards overturn, and flip 544 can overturn vertical direction, two flip 544 can laminate each other, and then can blow with the inside plastics melt of blowing jar 1, and then make flip 544 top can not be stained with plastics melt, all will be blown by gas, thereby accomplish blow molding, after the blowing is accomplished, when gas does not extrude flip 544, flip 544 can overturn horizontal position under torsional spring 547's effect. The flip cap 544 just fits the top of the blow molded can 1, avoiding that plastic melt may enter the interior of the air trap 543.

Specifically, the bottom of the limiting ring 57 is located at the bottom of the pushing barrel 54, the limiting ring 57 is formed by sleeving five concentric rings together, the upper end of the limiting ring 57 is fixedly connected with a cross 58, the upper end of the cross 58 is fixedly connected with a connecting rod 59, the cross 58 is used for fixing the five concentric rings to fix gaps between the rings, a similar filter screen structure is formed by the five concentric rings, and the problem that a filter screen is easy to damage is avoided on the basis of retaining filtration.

Specifically, three scrapers 52 are arranged on two vertical surfaces of the mounting frame 51, two ends of each scraper 52 are fixedly connected with the upper arm and the lower arm of the mounting frame 51 respectively, each scraper 52 is of an arc sheet structure, each scraper 52 is far away from one port of the discharging mechanism 5 and is in contact with the inner wall of the discharging groove 2, and the mounting frame 51 can clean the inner wall of the discharging groove 2 by means of the scrapers 52 when the inner wall of the discharging groove 2 slides through the contact between the scrapers 52 and the inner wall of the discharging groove 2.

Specifically, a limiting mechanism 6 is arranged below the push cylinder 54, the limiting mechanism 6 comprises a mounting arm 61, a mounting disc 62, a spring 63, a slide bar 64 and a limiting block 65, a port of the mounting arm 61 is fixedly connected with a bottom arm of the mounting frame 51, one end of the mounting arm 61 away from the mounting frame 51 is fixedly connected with the mounting disc 62, the upper end of the mounting disc 62 is fixedly connected with the spring 63, and one end of the spring 63 away from the mounting disc 62 is fixedly connected with the limiting block 65; when the push cylinder 54 needs to be maintained, the push cylinder 54 is pressed downwards at the upper end of the blow molding tank 1, so that the push cylinder 54 downwards extrudes the limiting block 65, the limiting block 65 downwards slides under the pushing of the push cylinder 54, the push cylinder 54 downwards slides along with the limiting block 65, the sliding rod 64 slides into the push cylinder 54 through a gap between the limiting rings 57, and the push cylinder 54 slides over the separating disc 4 to be separated from the clamping of the blow molding tank 1, so that the discharging mechanism 5 is pulled out through removing a bolt between the baffle 55 and the discharging groove 2.

Specifically, the limiting block 65 is in a triangular structure, the sharp angle of the limiting block 65 faces the push cylinder 54, four sliding rods 64 are vertically inserted into the limiting block 65, the surfaces of the sliding rods 64 are in sliding connection with the limiting block 65, the bottom end of the sliding rods 64 is fixedly connected with the mounting plate 62, the sharp angle of the limiting block 65 is in contact with the limiting ring 57, and the contact area between the limiting block 65 and the limiting ring 57 is reduced on the basis that the limiting block 65 is kept against the limiting ring 57 so as to avoid the circulation of plastic liquid through the limiting ring 57.

When in use, plastic melt is injected into the discharge chute 2 through the feed inlet 3, the plastic melt is continuously injected into the treatment chute, so that the hydraulic pressure in the discharge chute 2 is increased, the push barrel 54 is pushed by the plastic melt to slide in the cylindrical hole in the separation disc 4, the plastic melt enters the blow molding tank 1 through the discharge outlet 56 of the push barrel 54, the plastic melt is screened by the discharge outlet 56, the condensed plastic solution is prevented from entering the blow molding tank 1, when the injection of the plastic melt into the treatment chute is stopped, the push barrel 54 leaks the condensed plastic melt to slide downwards under the action of gravity, thereby preventing the plastic melt from flowing into the blow molding tank 1, the plastic melt entering the push barrel 54 is filtered by the limiting ring 57 arranged at the bottom end of the push barrel 54, the condensed plastic is blocked outside the push barrel 54, five concentric rings are fixed by utilizing a cross 58 to fix gaps among the rings, a similar filter screen structure is formed by virtue of the five concentric rings, the problem that a filter screen is easy to damage is avoided on the basis of retaining and filtering, the sharp corners of the limiting blocks 65 are contacted with the limiting rings 57, the contact area of the limiting blocks 65 and the limiting rings 57 is reduced on the basis of retaining the limiting blocks 65 to abut against the limiting rings 57 to avoid the flow of plastic liquid through the limiting rings 57, when the push cylinder 54 needs to be maintained, the push cylinder 54 is pressed downwards at the upper end of the blow molding tank 1, the push cylinder 54 is pressed downwards to press the limiting blocks 65, the limiting blocks 65 slide downwards under the pushing of the push cylinder 54, the push cylinder 54 slides downwards along the limiting blocks 65, the sliding rods 64 slide into the push cylinder 54 through the gaps among the limiting rings 57, the push cylinder 54 slides across the separating disc 4 to be separated from the clamping of the blow molding tank 1, thereby the discharging mechanism 5 is extracted by dismantling bolts between the baffle plates 55 and the discharging grooves 2, the inner wall of the discharge chute 2 can be cleaned by means of the scraper 52 when the mounting bracket 51 slides on the inner wall of the discharge chute 2 by means of the contact of the scraper 52 with the inner wall of the discharge chute 2.

The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the foregoing examples, and that the foregoing description and description are merely illustrative of the principles of this invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A blow molding machine, characterized by: comprises a blow molding tank (1), a discharge chute (2), a feed inlet (3), a separation disc (4), a discharge mechanism (5) and a limiting mechanism (6); the inner wall of the blow molding tank (1) is fixedly connected with a separating disc (4), a cylindrical hole is vertically formed in the separating disc (4), the surface of the feed inlet (3) is communicated with the blow molding tank (1), the feed inlet (3) and the discharge chute (2) are positioned on the same straight line, and a discharge mechanism (5) is plugged in the discharge chute (2); the discharging mechanism (5) comprises a mounting frame (51), a scraper (52), a mounting ring (53), a pushing cylinder (54), a baffle plate (55), a discharging hole (56), a limiting ring (57), a cross (58) and a connecting rod (59), wherein the mounting frame (51) is a rectangular frame, the surface of the mounting frame (51) is in sliding connection with the inner wall of the discharging groove (2), the mounting ring (53) is fixedly connected with the inside of the mounting frame (51), the pushing cylinder (54) is in sliding connection with the inner wall of the mounting ring (53), the upper end of the pushing cylinder (54) is sealed, the surface of the pushing cylinder (54) is uniformly provided with the discharging hole (56), the mounting frame (51) is fixedly connected with the baffle plate (55) at the outer position of the blow molding tank (1), and the surface of the baffle plate (55) is fixedly connected with the blow molding tank (1). A limiting mechanism (6) is arranged between the bottom end of the pushing cylinder (54) and the mounting frame (51);

the inside of the pushing cylinder (54) is fixedly connected with a connecting rod (59), the connecting rod (59) is uniformly and vertically arranged in the pushing cylinder (54), the bottom end of the connecting rod (59) is fixedly connected with a limiting ring (57), and the limiting ring (57) is fixedly connected with the pushing cylinder (54) by virtue of the connecting rod (59);

the bottom end of the limiting ring (57) is positioned at the bottom end of the pushing cylinder (54) for issuing, the limiting ring (57) is formed by sleeving five concentric rings together, the upper end of the limiting ring (57) is fixedly connected with a cross (58), and the upper end of the cross (58) is fixedly connected with a connecting rod (59);

the side wall of push away section of thick bamboo (54) is provided with inlet port (542) with air intake (7) looks adaptation, air intake (7) and inlet port (542) are linked together, the inside of push away section of thick bamboo (54) is provided with air inlet plate (545), the top of air inlet plate (545) is provided with and stores air chamber (543), the top of storing air chamber (543) is provided with and fixes rotary pin (541) at push away section of thick bamboo (54) top, rotary pin (541) runs through the pinhole of flip (544) inside, rotary pin (541) with swing joint between flip (544), the cover of rotary pin (541) is equipped with two torsional springs (547), each torsional spring (547) and a flip (544) looks adaptation, flip (544) are provided with two, just flip (544) are the arc structure.

2. A blow molding machine as in claim 1 wherein: the utility model discloses a discharging mechanism, including mounting bracket (51), mounting bracket (51) is vertical, both sides all are equipped with three scraper (52) of mounting bracket (51), the both ends of scraper (52) respectively with upper and lower both arms fixed connection of mounting bracket (51), and scraper (52) are circular arc sheet structure to a port and blown down tank (2) inner wall contact of discharge mechanism (5) are kept away from to scraper (52).

3. A blow molding machine as in claim 1 wherein: the utility model discloses a push away section of thick bamboo (54) push away, push away section of thick bamboo (54) below is equipped with stop gear (6), stop gear (6) are including installation arm (61), mounting disc (62), spring (63), slide bar (64) and stopper (65), the port of installation arm (61) and mounting bracket (51) bottom arm fixed connection, one end fixedly connected with mounting disc (62) of mounting bracket (51) are kept away from to installation arm (61), the upper end fixedly connected with spring (63) of mounting disc (62), one end fixedly connected with stopper (65) of mounting disc (62) are kept away from to spring (63).

4. A blow molding machine as in claim 3 wherein: the limiting block (65) is of a triangular structure, the sharp angle of the limiting block (65) faces the pushing cylinder (54), four sliding rods (64) are vertically inserted into the limiting block (65), the surfaces of the sliding rods (64) are in sliding connection with the limiting block (65), and the bottom ends of the sliding rods (64) are fixedly connected with the mounting plate (62).