Vertical injection blow molding machine

By using a servo motor-driven square cylinder in conjunction with a negative pressure pump and a filter screen, automatic cleaning of the inside of the vertical injection blow molding machine mold is achieved, solving the problems of slow cleaning speed and low safety, and improving cleaning efficiency and safety.

CN223790844UActive Publication Date: 2026-01-13ZHANGJIAGANG LVHUAN MASCH CO LTD
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Patent Information

Application Number
CN202520427091.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-12
Publication Date
2026-01-13
Estimated Expiration
2035-03-12

AI Technical Summary

Technical Problem

Existing vertical injection blow molding machines are slow and dangerous when cleaning inside molds, making it difficult to quickly remove small residues and easily causing injury to workers.

Method used

By employing a servo motor, threaded rod, threaded hole, and control rod in conjunction with a negative pressure pump connecting pipe and filter screen, the square cylinder is moved and negative pressure suction is used for cleaning. In conjunction with a cylinder and sealing plate to control the suction hole, the internal debris of the mold is automatically cleaned.

Benefits of technology

It improves the speed of debris removal inside the mold, avoids the dangers of manual cleaning, and ensures the stability and safety of the cleaning process.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223790844U_ABST
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Abstract

The utility model relates to the technical field of injection blow molding machines, in particular to a vertical injection blow molding machine, and aims to solve the problem that tiny residues in a mold are difficult to clean quickly. The vertical injection blow molding machine comprises an injection blow molding machine body and a cleaning mechanism, a spiral conveyor is fixedly mounted at the input end of the injection blow molding machine body, and the cleaning mechanism is arranged in the injection blow molding machine body; the cleaning mechanism comprises a U-shaped plate installed on the front face of the injection blow molding machine body. Through cooperation of a servo motor, a threaded rod, a threaded hole and a control rod, the square barrel can move left and right, then the square barrel moves to the position above a needed mold according to requirements, suction force can be generated after a negative pressure pump connecting pipe is connected with a negative pressure pump, chippings enter the square barrel and the interior of the shell through the suction force of an air suction opening, and the chippings are prevented from falling off. And through cooperation with a filter screen, chippings can be stored in the shell, so that the mold is effectively cleaned, the cleaning speed of the chippings in the mold is increased, and meanwhile, workers are prevented from being collided due to the narrow operation space.
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Description

TECHNICAL FIELD

[0001] The application relates to the technical field of injection blow machines, in particular to a vertical injection blow machine. BACKGROUND

[0002] The injection blow machine is a device for producing bottles, containers and other plastic products, and is usually used in the blow molding process of plastics such as PET (polyethylene terephthalate), which heats the injection molded preform (referred to as "embryo") and blows it into the required shape through high-pressure air to form the final product.

[0003] The vertical injection blow machine is a common type of injection blow machine. Although the existing vertical injection blow machine can produce bottles, it still has some problems in actual use, such as demolding failure in the injection molding area, difficulty in quickly cleaning the small residues in the mold, and the need for manual cleaning by workers, which not only slows down the cleaning speed, but also causes harm to the workers due to the narrow space during the cleaning process. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the problem of difficulty in quickly cleaning the small residues in the mold, the application provides a vertical injection blow machine.

[0005] The vertical injection blow machine provided by the application adopts the following technical scheme:

[0006] A vertical injection blow machine, comprising an injection blow machine body and a cleaning mechanism, wherein the input end of the injection blow machine body is fixedly installed with a screw conveyor, the cleaning mechanism is arranged in the interior of the injection blow machine body, the cleaning mechanism comprises a U-shaped plate installed on the front face of the injection blow machine body, a servo motor is fixedly installed on the right side face of the U-shaped plate, a threaded rod is fixedly installed at the output end of the servo motor, a control rod is arranged in front of the injection blow machine body, a threaded hole is formed in the right side face of the control rod, the threaded rod is in threaded connection with the threaded hole, a square tube is fixedly installed at the top end of the control rod, a shell is fixedly and communicatively arranged on the front face of the square tube, a negative pressure pump connecting pipe is fixedly and communicatively arranged on the front face of the shell, a filter screen is fixedly installed on the inner wall of the shell, a control panel is fixedly installed on the front face of the shell, a group of air suction holes are formed in the bottom face of the square tube, and a controller is fixedly installed on the upper surface of the injection blow machine body.

[0007] By adopting the above technical scheme, through the cooperation of the servo motor, the threaded rod, the threaded hole and the control rod, the square cylinder can move left and right, and then the square cylinder can move to the upper side of the required mold according to the requirement, and the suction force can be generated after the negative pressure pump connection pipe is connected to the negative pressure pump, so that the debris enters the inside of the square cylinder and the shell through the suction force of the air inlet, and the debris can be stored in the shell by cooperating with the filter screen, thereby effectively cleaning the mold, improving the cleaning speed of the debris in the mold, and avoiding collision of the staff due to the narrow operation space.

[0008] Optionally, the back surface of the control rod is fixedly connected with a mounting seat, and the upper surface of the mounting seat is fixedly connected with the bottom surface of the square cylinder.

[0009] By adopting the above technical scheme, the mounting seat can reinforce the device, effectively improving the stability of the square cylinder and preventing the square cylinder from shaking.

[0010] Optionally, the bottom surface of the shell is provided with a discharge port, and the inner wall of the discharge port is threadedly connected with a sealing plug.

[0011] By adopting the above technical scheme, the discharge port can conveniently discharge the debris and prevent the debris from accumulating.

[0012] Optionally, the front surface of the injection blowing machine body is fixedly connected with a sliding rail, the inner wall of the sliding rail is slidingly connected with a sliding block, and the front surface of the sliding block is fixedly installed with the back surface of the control rod.

[0013] By adopting the above technical scheme, the sliding rail and the sliding block can guide the control rod to move more stably.

[0014] Optionally, the outer surface of the controller is sleeved with a protective shell, and the bottom surface of the protective shell is fixedly installed with the upper surface of the injection blowing machine body.

[0015] By adopting the above technical scheme, the protective shell can protect the controller and prevent the controller from shaking.

[0016] Optionally, a group of sealing rings are arranged below the square cylinder, and the upper surfaces of the sealing rings are fixedly connected with the bottom surface of the square cylinder.

[0017] By adopting the above technical scheme, the sealing ring can increase the sealing property and prevent air leakage during debris suction.

[0018] Optionally, two air cylinders are fixedly installed on the upper surface of the square cylinder, and the bottom ends of the air cylinders are respectively fixedly installed with first and second sealing plates.

[0019] By adopting the above technical scheme, the air cylinder, the first sealing plate and the second sealing plate can open the air suction hole according to the requirement and suction debris in different molds.

[0020] Optionally, the input end of the screw conveyor is fixedly installed with a hopper.

[0021] To sum up, the present application includes at least one of the following beneficial technical effects:

[0022] 1. By being provided with a servo motor, a threaded rod, a threaded hole and a control rod, the square cylinder can move left and right, and then move to the top of the required mold according to the requirements, and the suction force can be generated after connecting the negative pressure pump, so that the debris enters the square cylinder and the shell through the suction force of the suction port, and the debris can be stored in the shell by cooperating with the filter screen, thereby effectively cleaning the mold, improving the cleaning speed of the debris in the mold, and avoiding collision of the staff due to the small operation space;

[0023] 2. The sealing ring can increase the sealing property to prevent air leakage when the debris is sucked;

[0024] 3. The air cylinder, the first sealing plate and the second sealing plate can open the suction hole according to the requirements to suck the debris in different molds. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a structural schematic diagram of a vertical injection blow molding machine according to an embodiment of the present application.

[0026] Figure 2 is a structural schematic diagram of a control rod and a threaded rod according to an embodiment of the present application.

[0027] Figure 3 is a structural schematic diagram of a mounting seat according to an embodiment of the present application.

[0028] Figure 4 is a structural schematic diagram of a first sealing plate and a second sealing plate according to an embodiment of the present application.

[0029] Figure 5 is a structural schematic diagram of a controller and a protective shell according to an embodiment of the present application.

[0030] BRIEF DESCRIPTION OF DRAWINGS 1, injection blow molding machine body; 2, cleaning mechanism; 201, U-shaped plate; 202, servo motor; 203, control rod; 204, threaded hole; 205, threaded rod; 206, shell; 207, sealing plug; 208, square cylinder; 209, control panel; 210, negative pressure pump connecting pipe; 211, air cylinder; 212, discharge port; 213, filter screen; 214, sealing ring; 215, first sealing plate; 216, second sealing plate; 217, suction hole; 218, controller; 3, screw conveyor; 4, hopper; 5, protective shell; 6, slide rail; 601, sliding block; 7, mounting seat. DETAILED DESCRIPTION

[0031] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0032] This application discloses a vertical injection molding machine. (Refer to...) Figure 1 and Figure 2 A vertical injection blow molding machine includes an injection blow molding machine body 1. A screw conveyor 3 is fixedly installed at the input end of the injection blow molding machine body 1, and a hopper 4 is fixedly installed at the input end of the screw conveyor 3, through which raw materials can be easily added. A cleaning mechanism 2 is provided inside the injection blow molding machine body 1. The cleaning mechanism 2 includes a U-shaped plate 201 installed on the front of the injection blow molding machine body 1. A servo motor 202 is fixedly installed on the right side of the U-shaped plate 201, and a threaded rod 205 is fixedly installed at the output end of the servo motor 202. A control rod 203 is provided at the front of the injection blow molding machine body 1, and a threaded hole 204 is opened on the right side of the control rod 203. The threaded rod 205 is threadedly connected to the threaded hole 204.

[0033] Reference Figure 2 and Figure 3 The front of the injection blow molding machine body 1 is fixedly connected to a slide rail 6, and a slider 601 is slidably connected to the inner wall of the slide rail 6. The front of the slider 601 is fixedly installed with the back of the control rod 203. The slide rail 6 and the slider 601 can guide the control rod 203, making the movement of the control rod 203 more stable.

[0034] Reference Figure 2 and Figure 3 A square tube 208 is fixedly installed at the top of the control rod 203, and a mounting base 7 is fixedly connected to the back of the control rod 203. The upper surface of the mounting base 7 is fixedly connected to the bottom surface of the square tube 208. By providing the mounting base 7, the device can be reinforced, effectively improving the stability of the square tube 208 and preventing the square tube 208 from shaking.

[0035] Reference Figure 3 and Figure 4 The bottom surface of the square tube 208 is provided with a set of suction holes 217. Two cylinders 211 are fixedly installed on the upper surface of the square tube 208. The bottom ends of the two cylinders 211 are respectively fixedly installed with a first sealing plate 215 and a second sealing plate 216. The suction holes 217 can be opened as needed by the cylinders 211 and the first and second sealing plates 215 and 216 to suck up debris from inside different molds. A set of sealing rings 214 is provided at the bottom of the square tube 208. The upper surface of the sealing rings 214 is fixedly connected to the bottom surface of the square tube 208. The sealing rings 214 can increase the sealing performance and prevent air leakage when sucking up debris.

[0036] Reference Figure 3 and Figure 4The front of the square tube 208 is fixedly connected to the housing 206, and the front of the housing 206 is fixedly connected to the negative pressure pump connecting pipe 210. The control panel 209 is fixedly installed on the front of the housing 206, and the filter screen 213 is fixedly installed on the inner wall of the housing 206. A discharge port 212 is provided on the bottom surface of the housing 206, and a sealing plug 207 is threadedly connected to the inner wall of the discharge port 212. The discharge port 212 facilitates the discharge of debris and prevents debris accumulation.

[0037] Reference Figure 1 and Figure 5 A controller 218 is fixedly installed on the upper surface of the injection blow molding machine body 1. A protective shell 5 is fitted on the outer surface of the controller 218. The bottom surface of the protective shell 5 is fixedly installed on the upper surface of the injection blow molding machine body 1. The protective shell 5 can protect the controller 218 and prevent the controller 218 from shaking.

[0038] The implementation principle of a vertical injection blow molding machine according to an embodiment of this application is as follows: The negative pressure pump connecting pipe 210 is connected to the negative pressure pump. After the bottle demolding fails, the equipment is stopped, and then the servo motor 202 is started. The servo motor 202 drives the threaded rod 205 to rotate. The threaded rod 205 cooperates with the threaded hole 204 to move the control rod 203. The control rod 203 drives the square cylinder 208 to move onto the mold that failed to demold. At the same time, the sealing ring 214 contacts the mold. The negative pressure pump is started to reduce the air pressure inside the housing 206. Then, according to the mold position, the cylinder 211 corresponding to the mold position is started, so that the cylinder 211 opens the first sealing plate 215 or the second sealing plate 216, so that the suction hole 217 draws out the debris inside the mold. The debris enters into the square cylinder 208 and moves inside the square cylinder 208. The debris is intercepted by the filter screen 213, thereby completing the rapid cleaning of debris inside the mold.

[0039] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A vertical injection blow molding machine comprising an injection blow molding machine body (1) and a cleaning mechanism (2), characterized in that: The input end of the injection blowing machine body (1) is fixedly installed with a screw conveyor (3), the cleaning mechanism (2) is arranged in the injection blowing machine body (1), the cleaning mechanism (2) comprises a U-shaped plate (201) arranged on the front of the injection blowing machine body (1), a servo motor (202) is fixedly installed on the right side of the U-shaped plate (201), a threaded rod (205) is fixedly installed at the output end of the servo motor (202), a control rod (203) is arranged in front of the injection blowing machine body (1), a threaded hole (204) is formed in the right side of the control rod (203), the threaded rod (205) is in threaded connection with the threaded hole (204), a square cylinder (208) is fixedly installed at the top end of the control rod (203), a shell (206) is fixedly and communicatively arranged on the front of the square cylinder (208), a negative pressure pump connecting pipe (210) is fixedly and communicatively arranged on the front of the shell (206), a filter screen (213) is fixedly installed on the inner wall of the shell (206), a control panel (209) is fixedly installed on the front of the shell (206), a group of air suction holes (217) are formed in the bottom surface of the square cylinder (208), and a controller (218) is fixedly installed on the upper surface of the injection blowing machine body (1).

2. A vertical injection blow molding machine according to claim 1, characterized in that: The back surface of the control rod (203) is fixedly connected with a mounting seat (7), and the upper surface of the mounting seat (7) is fixedly connected with the bottom surface of the square cylinder (208).

3. A vertical injection blow molding machine according to claim 1, characterized in that: A discharge port (212) is formed in the bottom surface of the shell (206), and a sealing plug (207) is in threaded connection with the inner wall of the discharge port (212).

4. A vertical injection blow molding machine according to claim 1, characterized in that: The front of the injection blowing machine body (1) is fixedly connected with a sliding rail (6), the inner wall of the sliding rail (6) is slidingly connected with a sliding block (601), and the front of the sliding block (601) is fixedly installed with the back of the control rod (203).

5. A vertical injection blow molding machine according to claim 1, characterized in that: The outer surface of the controller (218) is sleeved with a protective shell (5), and the bottom surface of the protective shell (5) is fixedly installed with the upper surface of the injection blowing machine body (1).

6. A vertical injection blow machine according to claim 4, characterised in that: A group of sealing rings (214) are arranged below the square cylinder (208), and the upper surfaces of the sealing rings (214) are fixedly connected with the bottom surface of the square cylinder (208).

7. A vertical injection blow machine according to claim 6, characterised in that: Two air cylinders (211) are fixedly installed on the upper surface of the square cylinder (208), and a first sealing plate (215) and a second sealing plate (216) are respectively fixedly installed at the bottom ends of the air cylinders (211).

8. A vertical injection blow machine as claimed in claim 1, characterized in that: The input end of the screw conveyor (3) is fixedly installed with a hopper (4).