Plastic bottle injection molding device

Abstract

The utility model belongs to the technical field of injection molding, and particularly relates to a plastic bottle injection molding device which comprises a machine frame, a left mold, a right mold and a blow molding needle, the left mold and the right mold are both assembled in the machine frame in a sliding mode, the blow molding needle is assembled in the machine frame in a sliding mode, and hydraulic cylinders matched with the left mold and the right mold are fixedly arranged on the left side and the right side in the machine frame. Two vertical plates which are symmetrically distributed left and right are fixedly arranged on the upper side of the rack, a supporting frame is assembled between the two vertical plates in a sliding mode, a plurality of cooling fans which are linearly distributed are fixedly arranged on the upper side of the supporting frame, and limiting assemblies matched with the supporting frame are arranged on the outer sides of the two vertical plates; the multiple cooling fans are driven by the supporting frame to move, air blowing cooling is conducted on the formed plastic bottle, and resetting is conducted under driving of the limiting assembly, so that cooling of the plastic bottle is accelerated, the opening and closing speed of the left mold and the right mold is accelerated, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molding, and in particular relates to a plastic bottle injection molding device. Background Art

[0002] Plastic bottle injection molding machine is the main molding equipment used to make thermoplastic plastics or thermosetting plastics into plastic products of various shapes using plastic molding molds. This machine can heat plastic and apply high pressure to molten plastic to make it eject and fill the mold cavity, thereby producing the required plastic products. Plastic bottle injection molding machine is the main molding equipment used to make thermoplastic plastics or thermosetting plastics into plastic products of various shapes using plastic molding molds, and blow molding is the key step in the molding of plastic bottles. Most manufacturers now use the method of heating and blow molding the bottle embryos, but in the current molding process, most equipment only relies on the mold to cool the molded bottle body, the cooling speed is slow, and the production efficiency is low. Therefore, a plastic bottle injection molding device is needed to solve the above problems. Utility Model Content

[0003] The purpose of the utility model is to provide a plastic bottle injection molding device, which drives a plurality of cooling fans to move through a support frame, blows air to cool the molded plastic bottles, and resets them under the drive of a limit assembly, thereby accelerating the cooling of the plastic bottles, accelerating the opening and closing speed of the left mold and the right mold, and improving production efficiency.

[0004] In order to achieve the above technical purpose, the technical solution adopted by the utility model is as follows:

[0005] A plastic bottle injection molding device comprises a frame, a left mold, a right mold and a blow molding needle, the left mold and the right mold are both slidably assembled inside the frame, the blow molding needle is slidably assembled inside the frame, hydraulic cylinders matching the left mold and the right mold are fixedly arranged on the left and right sides of the frame, two vertical plates symmetrically distributed on the upper side of the frame are fixedly arranged, a support frame is slidably assembled between the two vertical plates, a plurality of linearly distributed cooling fans are fixedly arranged on the upper side of the support frame, and limit assemblies matching the support frames are arranged on the outer sides of the two vertical plates.

[0006] The limiting assembly includes a guide groove provided on the side wall of the vertical plate, a block is slidably mounted on the outer side wall of the vertical plate, a connecting shaft matching the guide groove is fixedly arranged between the block and the support frame, a vertical block is fixedly arranged on the outer side wall of the vertical plate, an elliptical hole matching the guide groove is provided on the vertical block, a round block is slidably mounted on the rear side of the vertical block, a guide rod matching the elliptical hole is fixedly arranged on the front side of the round block, a spring matching the guide rod is installed between the vertical block and the block, and the block is provided with a round hole matching the guide rod.

[0007] The upper sides of the left mold and the right mold are both provided with control components matching the blow molding needle, and the control components include a vertical rod fixedly provided on the upper side of the left mold, a connecting rod is hinged between the upper side of the vertical rod and the upper side of the blow molding needle, the vertical plate is provided with a vertical opening matching the connecting rod, a round shaft is fixedly provided on the vertical opening, and the connecting rod is provided with a through groove matching the round shaft.

[0008] A plurality of the heat dissipation fans are arranged at an angle.

[0009] A sliding rod 35 matching the left mold 10 and the right mold 11 is fixedly disposed inside the frame 1 .

[0010] The utility model drives a plurality of cooling fans to move through a support frame, blows air to cool the formed plastic bottles, and resets the bottles driven by a limit assembly, thereby accelerating the cooling of the plastic bottles, accelerating the opening and closing speeds of the left and right molds, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings.

[0012] Figure 1 This is a schematic diagram of the structure of a plastic bottle injection molding device embodiment of the utility model Figure 1 ;

[0013] Figure 2 This is a schematic diagram of the structure of a plastic bottle injection molding device embodiment of the utility model Figure 2 ;

[0014] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0015] Figure 4 This is a schematic diagram of the structure of a plastic bottle injection molding device embodiment of the utility model Figure 3 ;

[0016] Figure 5 for Figure 4 A schematic diagram of the enlarged structure at B in the middle;

[0017] Figure 6 This is a schematic diagram of the structure of a plastic bottle injection molding device embodiment of the utility model Figure 4 ;.

[0018] The main component symbols are described as follows:

[0019] Frame 1, left mold 10, right mold 11, blow molding needle 12, hydraulic cylinder 13, vertical plate 14, support frame 15, cooling fan 16, guide groove 20, connecting shaft 200, square block 21, vertical block 22, elliptical hole 23, round block 24, guide rod 25, spring 26, vertical rod 30, connecting rod 31, sliding rod 35. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0021] like Figure 1-6 As shown, a plastic bottle injection molding device of the utility model comprises a frame 1, a left mold 10, a right mold 11 and a blow molding needle 12. The left mold 10 and the right mold 11 are both slidably assembled inside the frame 1, and the blow molding needle 12 is slidably assembled inside the frame. Hydraulic cylinders 13 matching the left mold 10 and the right mold 11 are fixedly arranged on the left and right sides of the frame 1. Two vertical plates 14 symmetrically distributed on the upper side of the frame 1 are fixedly arranged. A support frame 15 is slidably assembled between the two vertical plates 14. A plurality of linearly distributed cooling fans 16 are fixedly arranged on the upper side of the support frame 15. The outer sides of the two vertical plates 14 are provided with limiter components matching the support frame 15.

[0022] The limiting assembly includes a guide groove 20 provided on the side wall of the vertical plate 14, a block 21 is slidably mounted on the outer side wall of the vertical plate 14, a connecting shaft 200 matching the guide groove 20 is fixedly mounted between the block 21 and the support frame 15, a vertical block 22 is fixedly mounted on the outer side wall of the vertical plate 14, an elliptical hole 23 matching the guide groove 20 is provided on the vertical block 22, a round block 24 is slidably mounted on the rear side of the vertical block 22, a guide rod 25 matching the elliptical hole 23 is fixedly mounted on the front side of the round block 24, a spring 26 matching the guide rod 25 is installed between the vertical block 22 and the block 21, and a round hole matching the guide rod 25 is provided on the block 21;

[0023] The utility model is equipped with a conveying device for bottle embryos, which clamps and conveys the bottle embryos to the middle of the two vertical plates 14, and the left mold 10 and the right mold 11 clamp the bottle embryos, and the blow molding needle 12 blows high-pressure air into the bottle embryos for molding;

[0024] When the utility model is used, under the elastic action of the spring 26, the block 21 drives the support frame 15 to be located at the upper middle side of the left mold 10 and the right mold 11. When the conveying device conveys the bottle embryo, the conveying device abuts against the support frame 15, pushing the support frame 15 to move. When it moves to a certain position, the left mold 10 and the right mold 11 are driven by the hydraulic cylinder 13 to close the bottle embryo, and the blow molding needle 12 slides downward and inserts into the bottle embryo to blow up and form. After the forming is completed, the blow molding needle 12 moves upward and disengages, and the left mold 10 and the right mold 11 move to the left and right to open, and the conveying device continues to drive the molded plastic bottle to move, and a plurality of cooling fans 16 are driven to move. The plastic bottles are started and cooled by blowing air. When the conveying device pushes the support frame 15 to move, the plastic bottles are continuously cooled by blowing air. During the movement of the support frame 15, since the rear end of the guide groove 20 is inclined upward, the connecting shaft 200 drives the support frame 15 to move toward the rear side first and then slides toward the upper side along the guide groove 20, and at the same time drives the round block 24 and the guide rod 25 to move. When the conveying device pushes the support frame 15 to move to the rear side of the inclined end of the guide groove 20, the support frame 15 is separated from the conveying device. Under the elastic action of the spring 26, the support frame 15 is reset, and the plastic bottles are continuously cooled by blowing air, thereby accelerating the molding speed of the plastic bottles.

[0025] Furthermore, when the conveying device is not in contact with the support frame 15, the plurality of cooling fans 16 are not in operation, thereby ensuring that the heated preforms are blow molded smoothly;

[0026] The utility model drives a plurality of cooling fans to move through a support frame, blows air to cool the formed plastic bottles, and resets the bottles driven by a limit assembly, thereby accelerating the cooling of the plastic bottles, accelerating the opening and closing speeds of the left and right molds, and improving production efficiency.

[0027] The left mold 10 and the right mold 11 are both provided with control parts matching the blow molding needle 12 on their upper sides. The control parts include a vertical rod 30 fixedly provided on the upper side of the left mold 10, a connecting rod 31 is hingedly connected between the upper side of the vertical rod 30 and the upper side of the blow molding needle 12, a vertical opening matching the connecting rod 31 is provided on the vertical plate 14, a round shaft is fixedly provided on the vertical opening, and a through groove matching the round shaft is provided on the connecting rod 31;

[0028] When the utility model is used, the hydraulic cylinders 13 on both sides synchronously drive the left mold 10 and the right mold 11 to move, and the left mold 10 and the right mold 11 synchronously drive the blow molding needle 12 to move through the vertical rod 30 and the connecting rod 31, so that the blow molding needle 12 moves up and down, and the hydraulic cylinders 13 are reasonably utilized.

[0029] A plurality of cooling fans 16 are arranged at an angle to ensure that the blow-molded plastic bottles are cooled by blowing air.

[0030] A sliding rod 35 matching the left mold 10 and the right mold 11 is fixedly provided inside the frame 1 to limit the movement of the left mold 10 and the right mold 11 to ensure the smooth movement of the device.

[0031] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A plastic bottle injection molding device, comprising a frame, a left mold, a right mold and a blow molding needle, characterized in that: The left mold and the right mold are both slidably assembled inside the frame, the blow molding needle is slidably assembled inside the frame, hydraulic cylinders matching the left mold and the right mold are fixedly arranged on the left and right sides of the frame, two vertical plates symmetrically distributed on the upper side of the frame are fixedly arranged, a support frame is slidably assembled between the two vertical plates, a plurality of linearly distributed cooling fans are fixedly arranged on the upper side of the support frame, and limit assemblies matching the support frame are arranged on the outer sides of the two vertical plates.

2. A plastic bottle injection molding device according to claim 1, characterized in that: The limiting assembly includes a guide groove provided on the side wall of the vertical plate, a block is slidably mounted on the outer side wall of the vertical plate, a connecting shaft matching the guide groove is fixedly arranged between the block and the support frame, a vertical block is fixedly arranged on the outer side wall of the vertical plate, an elliptical hole matching the guide groove is provided on the vertical block, a round block is slidably mounted on the rear side of the vertical block, a guide rod matching the elliptical hole is fixedly arranged on the front side of the round block, a spring matching the guide rod is installed between the vertical block and the block, and the block is provided with a round hole matching the guide rod.

3. A plastic bottle injection molding device according to claim 2, characterized in that: The upper sides of the left mold and the right mold are both provided with control components matching the blow molding needle, and the control components include a vertical rod fixedly provided on the upper side of the left mold, a connecting rod is hinged between the upper side of the vertical rod and the upper side of the blow molding needle, the vertical plate is provided with a vertical opening matching the connecting rod, a round shaft is fixedly provided on the vertical opening, and the connecting rod is provided with a through groove matching the round shaft.

4. A plastic bottle injection molding device according to claim 1, characterized in that: A plurality of the heat dissipation fans are arranged at an angle.

5. A plastic bottle injection molding device according to claim 1, characterized in that: A sliding rod matching the left mold and the right mold is fixedly arranged inside the frame.

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