CN224145279U - Blank removing device for plastic bottle blank - Google Patents

Abstract

The utility model provides a blank removing device for plastic bottle blanks. Relates to the technical field of plastic bottle molding processing. The utility model provides a plastic bottle blank's knockout device includes the portal frame and sets up the injection mold in the portal frame is inside, a plurality of die cavities have been seted up at the top of injection mold, a plurality of injection molding passageway has been seted up to the bottom of injection mold, a plurality of the passageway of moulding plastics respectively with a plurality of the die cavity is linked together, the top fixed mounting of portal frame has first cylinder, the output shaft of first cylinder run through the top of portal frame and with the top sliding connection of portal frame, fixed mounting has connecting frame on the output shaft of first cylinder, connecting frame's bottom fixed mounting has a plurality of mold cores, a plurality of slip cap is equipped with same material returning plate on the mold core, fixed mounting has the second cylinder on connecting frame's the top inner wall. The utility model has the advantages of no need of manual operation to interfere the blank stripping and improvement of the blank stripping efficiency.

Description

Blank removing device for plastic bottle blank

Technical Field

The utility model relates to the technical field of plastic bottle forming processing, in particular to a plastic bottle blank removing device.

Background

The plastic bottle blank is a semi-finished plastic product, the bottle blank is manufactured firstly by an injection molding mode, then the bottle blank is smoothly blown into a complete plastic bottle by a blow molding method, in the manufacturing process of the bottle blank, generally after injection molding is finished, the bottle blank can be adhered to a mold core, and the mold core is taken out firstly, and then the bottle blank on the mold core is taken down, so that the blank removing effect is realized.

However, in the actual blank removing process, because some bottle blanks expand due to higher injection temperature, after the mold cores are moved out, the bottle blanks still stay in the injection mold, and then the bottle blanks need to be manually taken out to finish demoulding.

Therefore, there is a need to provide a new plastic bottle preform knockout device to solve the above-mentioned technical problems.

Disclosure of utility model

The utility model aims to provide a plastic bottle blank stripping device which does not need manual operation to intervene in stripping, and improves the stripping efficiency.

In order to solve the technical problems, the plastic bottle blank stripping device comprises a portal frame and an injection mold arranged in the portal frame, wherein a plurality of cavities are formed in the top of the injection mold, a plurality of injection passages are formed in the bottom of the injection mold, the injection passages are respectively communicated with the cavities, a first air cylinder is fixedly arranged at the top of the portal frame, an output shaft of the first air cylinder penetrates through the top of the portal frame and is in sliding connection with the top of the portal frame, a connecting frame is fixedly arranged on the output shaft of the first air cylinder, a plurality of mold cores are fixedly arranged at the bottom of the connecting frame, a plurality of material returning plates are sleeved on the mold cores in a sliding manner, a second air cylinder is fixedly arranged on the inner wall of the top of the connecting frame, a guide frame is fixedly arranged on the output shaft of the second air cylinder, the bottom of the guide frame extends to the lower part of the connecting frame and is in sliding connection with the bottom of the connecting frame, the bottom of the guide frame is fixedly connected with a material returning plate, a rotating shaft is fixedly arranged on the inner wall of the top of the portal frame, a plurality of bearing rods are fixedly arranged on the rotating shafts, and the rotating shafts are fixedly arranged on the rotating shafts are close to one sides of the connecting shafts.

Preferably, a conveying unit is arranged in the portal frame, a shuttle opening is formed in one side of the portal frame, and the conveying unit penetrates through the shuttle opening.

Preferably, two shielding plates are fixedly installed on the inner wall of one side of the portal frame, the two shielding plates are located above the conveyor unit, and the shielding plates are in contact with the top of the conveyor unit.

Preferably, the top sliding mounting of portal frame has two first vertical poles, two the bottom of first vertical pole all with connecting frame fixed connection.

Preferably, a first servo motor is fixedly arranged at the top of the portal frame, an output shaft of the first servo motor is fixedly connected with the mounting frame, a second servo motor is fixedly arranged in the mounting frame, and an output shaft of the second servo motor is fixedly connected with one end of the connecting shaft.

Preferably, the top of portal frame slidable mounting has two second vertical poles, two the bottom of second vertical pole all with bear piece fixed connection.

Compared with the related art, the plastic bottle blank stripping device provided by the utility model has the following beneficial effects:

the utility model provides a blank removing device for plastic bottle blanks, which can remove the bottle blanks attached to a mold core through a second cylinder, a guide frame and a material returning plate, and can turn over an injection mold firstly by using the arrangement of a third cylinder and a material returning rod and the rotation cooperation of a rotating shaft and a connecting shaft, so that a cavity opening faces downwards, and then the bottle blanks are ejected out of the cavity by using the material returning rod, thereby realizing rapid blank removing operation without manual intervention, improving blank removing efficiency and reducing the occurrence of working accidents.

Drawings

FIG. 1 is a schematic view of a plastic bottle preform knockout device according to a preferred embodiment of the present utility model;

FIG. 2 is a schematic elevational view of the present utility model;

FIG. 3 is a schematic cross-sectional view of an injection mold according to the present utility model;

FIG. 4 is a schematic view of a connection structure of a first cylinder and a connection frame according to the present utility model;

fig. 5 is a schematic diagram of a connection structure of a carrier sheet and a material returning rod in the utility model.

In the figure, the reference numerals are 1, a portal frame, 2, an injection mold, 3, a cavity, 4, an injection molding channel, 5, a first cylinder, 6, a connecting frame, 7, a mold core, 8, a material returning plate, 9, a second cylinder, 10, a guide frame, 11, a rotating shaft, 12, an installation frame, 13, a connecting shaft, 14, a conveying unit, 15, a shielding plate, 16, a third cylinder, 17, a carrying sheet, 18 and a material returning rod.

Detailed Description

The utility model will be further described with reference to the drawings and embodiments.

Referring to fig. 1-5, fig. 1 is a schematic structural view of a preferred embodiment of a preform removing device for plastic bottle preforms according to the present utility model, fig. 2 is a schematic structural view of an injection mold according to the present utility model, fig. 3 is a schematic sectional structural view of an injection mold according to the present utility model, fig. 4 is a schematic structural view of a connection structure of a first cylinder and a connection frame according to the present utility model, and fig. 5 is a schematic structural view of a connection structure of a carrier sheet and a material removing rod according to the present utility model.

The blank removing device for plastic bottle blanks comprises: the injection molding machine comprises a portal frame 1 and an injection molding die 2 arranged in the portal frame 1, wherein a plurality of cavities 3 are formed in the top of the injection molding die 2, a plurality of injection molding channels 4 are formed in the bottom of the injection molding die 2, the plurality of injection molding channels 4 are respectively communicated with the plurality of cavities 3, so that plastic raw materials can be smoothly injected into the cavities 3 for injection molding, a first air cylinder 5 is fixedly arranged at the top of the portal frame 1, an output shaft of the first air cylinder 5 penetrates through the top of the portal frame 1 and is in sliding connection with the top of the portal frame 1, a connecting frame 6 is fixedly arranged on the output shaft of the first air cylinder 5, two first vertical rods are slidably arranged at the top of the portal frame 1 for preventing the output shaft of the first air cylinder 5 from rotating, the bottom ends of the two first vertical rods are fixedly connected with the connecting frame 6, a plurality of mold cores 7 are fixedly arranged at the bottom of the connecting frame 6, the mold cores 7 are respectively matched with the mold cavities 3, after the mold cores 7 are inserted into the mold cavities 3, injection molding space is reserved between the mold cores 7 and the inner wall of the mold cavities 3, the mold cores 7 are sleeved with the same material returning plate 8 in a sliding manner, a second air cylinder 9 is fixedly arranged on the inner wall of the top of the connecting frame 6, a guide frame 10 is fixedly arranged on an output shaft of the mold cores, the bottom of the guide frame 10 extends to the lower part of the connecting frame 6 and is in sliding connection with the bottom of the connecting frame 6, the bottom of the guide frame 10 is fixedly connected with the material returning plate 8, bottle blanks attached to the mold cores 7 can be subjected to blank removing work through the extension of the output shaft of the second air cylinder 9, a rotary shaft 11 is rotatably arranged on the inner wall of the top of the portal frame 1, a mounting frame 12 is fixedly arranged at the bottom of the portal frame 1, a first servo motor is fixedly arranged at the top of the portal frame 1, and the output shaft of the first servo motor is fixedly connected with the mounting frame 12, the installation frame 12 is close to one side of the injection mould 2 and is rotatably provided with the connecting shaft 13, and fixedly provided with a second servo motor in the installation frame 12, an output shaft of the second servo motor is fixedly connected with one end of the connecting shaft 13, one end of the connecting shaft 13 is fixedly connected with the injection mould 2, a third air cylinder 16 is fixedly provided on the inner wall of the top of the portal frame 1, a carrier piece 17 is fixedly provided on the output shaft of the third air cylinder, a plurality of material returning rods 18 are fixedly provided at the bottom of the carrier piece 17, the material returning rods 18 are respectively matched with a plurality of injection channels 4, the material returning rods 18 can be inserted into the injection channels 4 by utilizing the extension of the output shaft of the third air cylinder 16, and finally bottle blanks are ejected out in the cavity 3, thereby realizing the blank removing effect.

In the above manner, in order to transfer the bottle blanks after blank removal to the next process, a transfer unit 14 is provided in the gantry 1, a shuttle port is provided on one side of the gantry 1, the transfer unit 14 penetrates through the shuttle port, and the transfer unit 14 is a common material transfer device in the market, which is a very mature prior art, and will not be described in detail herein.

And, fixedly mounted has two shielding plates 15 on the one side inner wall of portal frame 1, and two shielding plates 15 are located the top of conveyer unit 14, and shielding plate 15 and the top of conveyer unit 14 contact, can form the front and back to the bottle embryo that drops and block, prevent that the bottle embryo from spilling from conveyer unit 14.

The working principle of the blank removing device for the plastic bottle blank provided by the utility model is as follows:

in the device, an injection molding channel 4 is connected with an injection head of an external injection molding machine;

When injection molding is performed, firstly, the output shaft of the first air cylinder 5 is started to extend, so that the connecting frame 6 is lowered with the mold cores 7, finally, the mold cores 7 are inserted into the corresponding cavities 3, the bottom of the material returning plate 8 is contacted with the top of the injection mold 2, and then, an external injection molding machine is started, and plastic raw materials enter the cavities 3 for injection molding;

When the injection molding is finished, the output shaft of the first air cylinder 5 is started to retract, the mold core 7 is moved out of the mold cavity 3, and in the moving-out process, all possible bottle blanks are carried out along with the mold core 7, at the moment, only the first servo motor is started, and the output shaft drives the rotating shaft 11 to rotate so as to rotate together with the mounting frame 12 and the injection mold 2, after the injection mold 2 is moved out of the lower part of the mold core 7, the first servo motor is closed, no obstruction is arranged below the mold core 7 at the moment, then the output shaft of the second air cylinder 9 is started to extend, and the output shaft drives the guide frame 10 to descend so as to descend along with the material returning plate 8, so that the bottle blanks attached to the mold core 7 can be removed and fall onto the conveyor 14 to be conveyed to the next procedure;

When a part of bottle blanks are taken out by the mold core 7 and a part of bottle blanks are remained in the mold cavity 3, the first servo motor is started in the same way, after the injection mold 2 rotates 180 degrees, the first servo motor is closed, the output shaft of the second air cylinder 9 is started to extend, the bottle blanks attached to the mold core 7 fade, meanwhile, the second servo motor is started, the output shaft drives the connecting shaft 13 to rotate, the injection mold 2 starts to rotate, after the injection mold 2 rotates 180 degrees, the second servo motor is closed, the opening of the mold cavity 3 faces downwards, a plurality of material returning rods 18 respectively correspond to the upper and lower parts of the injection passages 4, then the output shaft of the third air cylinder 16 is started to extend, the bearing sheet 17 drives the material returning rods 18 to descend, when the material returning rods 18 enter the mold cavity 3 through the injection passages 4, the bottle blanks are ejected, the bottle blanks are conveyed to the next procedure on the conveying unit 14, after the ejection is completed, the steps are reversely operated, the mold core 2 is carried again, and the next injection mold core 7 can be ejected, and the next batch of injection molding can be continued.

Compared with the related art, the plastic bottle blank stripping device provided by the utility model has the following beneficial effects:

The utility model provides a blank removing device for plastic bottle blanks, which can remove the bottle blanks attached to a mold core 7 through a second cylinder 9, a guide frame 10 and a material returning plate 8, and can turn over an injection mold 2 by utilizing the arrangement of a third cylinder 16 and a material returning rod 18 and the rotation cooperation of a rotating shaft 11 and a connecting shaft 13, so that the opening of a cavity 3 is downward, and then the bottle blanks are ejected out by entering the cavity 3 through the material returning rod 18, thereby realizing rapid blank removing operation without manual intervention, improving blank removing efficiency and reducing the occurrence of working accidents.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims (6)

1. The utility model provides a blank removing device of plastic bottle base, includes the portal frame and sets up the injection mold in the portal frame inside, its characterized in that, a plurality of die cavities have been seted up at the top of injection mold, a plurality of injection molding passageway has been seted up to the bottom of injection mold, a plurality of the injection molding passageway respectively with a plurality of the die cavities are linked together, the top fixed mounting of portal frame has first cylinder, the output shaft of first cylinder runs through the top of portal frame and with the top sliding connection of portal frame, fixed mounting has linking bridge on the output shaft of first cylinder, linking bridge's bottom fixed mounting has a plurality of mold cores, a plurality of the slip cap is equipped with same material returning plate on the mold core, fixed mounting has the second cylinder on linking bridge's the top inner wall, fixed mounting has the leading truck on the output shaft of second cylinder, the bottom of leading truck extends to linking bridge the below and with linking bridge's bottom sliding connection, the leading truck bottom with material returning plate fixed connection, rotate on the top inner wall of portal frame and with the top sliding connection of portal frame, the rotation axis is installed to have a plurality of bearing frames, the three die carrier rods are installed to the top fixed mounting has on the top carrier rod, the three die carrier rods is installed to the top is fixed to one side.

2. The plastic bottle blank removing device according to claim 1, wherein a conveying unit is arranged in the portal frame, a shuttle opening is formed in one side of the portal frame, and the conveying unit penetrates through the shuttle opening.

3. The device for removing plastic bottle blanks according to claim 2, wherein two shielding plates are fixedly installed on the inner wall of one side of the portal frame, the two shielding plates are located above the conveyor unit, and the shielding plates are in contact with the top of the conveyor unit.

4. The device for removing plastic bottle blanks according to claim 1, wherein the top of the portal frame is slidably provided with two first vertical rods, and the bottom ends of the two first vertical rods are fixedly connected with the connecting frame.

5. The plastic bottle blank removing device according to claim 1, wherein a first servo motor is fixedly installed at the top of the portal frame, an output shaft of the first servo motor is fixedly connected with the installation frame, a second servo motor is fixedly installed in the installation frame, and an output shaft of the second servo motor is fixedly connected with one end of the connecting shaft.

6. The knockout device of plastic bottle blanks according to claim 1, wherein the top of the portal frame is slidably provided with two second vertical rods, and the bottom ends of the two second vertical rods are fixedly connected with the bearing sheet.