Extrusion blow molding machine

Abstract

The utility model relates to the technical field of blow molding machines, in particular to an extrusion blow molding machine which comprises a heating temporary storage pipe, the lower end of the heating temporary storage pipe is communicated with a discharging pipe, the upper end of the interior of the heating temporary storage pipe is fixedly connected with a first fixing plate, and the lower end face of the first fixing plate is fixedly connected with a heating rod. The interior of the heating temporary storage pipe is fixedly connected with a heating box located below the heating rod, the upper end of the interior of the discharging pipe is fixedly connected with a second fixing plate, the lower end face of the second fixing plate is fixedly connected with a forming block located in the discharging pipe, and raw materials in the heating temporary storage pipe are heated through the heating rod and the heating box, so that the materials are kept in a molten state; raw materials in the heating temporary storage pipe are prevented from being hardened when cooled and affecting subsequent use, the raw materials are continuously conveyed into the heating temporary storage pipe, the raw materials enter the discharging pipe, then the raw materials are divided through the forming block, and then the raw materials are in a circular ring shape after being discharged from the lower end of the discharging pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of blow molding machines, in particular to an extrusion blow molding machine. Background Art

[0002] Blow molding, also known as hollow blow molding, is a rapidly developing plastic processing method. The tubular plastic parison obtained by extrusion or injection molding of thermoplastic resin is placed in a split mold while hot. After the mold is closed, compressed air is immediately introduced into the parison to inflate the plastic parison and cling to the inner wall of the mold. After cooling and demolding, various hollow products are obtained.

[0003] The existing extrusion blow molding machine is basically composed of an extrusion blow molding machine body and a machine head. When the existing extrusion blow molding machine is in use, the raw material is heated and melted through the extrusion blow molding machine body, and then the heated and melted raw material is squeezed into the machine head, and the heated and melted raw material is discharged through the machine head, so that the heated and melted raw material forms a tubular structure.

[0004] During use of the above device, since the head itself has a certain length, the temperature of the raw material will be reduced during blow molding, resulting in excessive resistance in the production of the bottle, increased production difficulty, and inconvenient use. Utility Model Content

[0005] The utility model aims to provide an extrusion blow molding machine, which has the characteristics of keeping materials in a molten state and reducing production difficulty.

[0006] To achieve the above object, the utility model provides the following technical solutions: an extrusion blow molding machine, comprising a heating temporary storage tube, the lower end of the heating temporary storage tube is connected to a discharge pipe, the upper end of the interior of the heating temporary storage tube is fixedly connected to a first fixing plate, the lower end surface of the first fixing plate is fixedly connected to a heating rod, and the interior of the heating temporary storage tube is fixedly connected to a heating box located below the heating rod;

[0007] A second fixing plate is fixedly connected to the inner upper end of the discharge pipe, and a forming block located inside the discharge pipe is fixedly connected to the lower end surface of the second fixing plate.

[0008] In order to facilitate real-time detection of the temperature of the raw materials inside the heating temporary storage tube, as a preferred extrusion blow molding machine of the utility model, a temperature sensor is installed on the upper end surface of the second fixing plate.

[0009] In order to facilitate heating of the raw materials by the heating box, as a preferred extrusion blow molding machine of the utility model, a plurality of evenly distributed heating plates are installed inside the heating box.

[0010] In order to facilitate the display of temperature data detected by the temperature sensor, as a preferred extrusion blow molding machine of the utility model, the outer wall of the heating temporary storage tube is fixedly connected to a connecting plate, the other end of the connecting plate is fixedly connected to a display screen, and the upper end surface of the connecting plate is fixedly connected to an alarm light.

[0011] In order to facilitate the transmission of temperature data detected by the temperature sensor to the display screen, as a preferred embodiment of the extrusion blow molding machine of the utility model, the temperature sensor is electrically connected to the display screen and the alarm light respectively.

[0012] In order to facilitate the transportation of raw materials into the heating temporary storage tube, as a preferred extrusion blow molding machine of the utility model, the upper end of the heating temporary storage tube is connected to a feed pipe.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The raw materials in the heating temporary storage tube are heated by the heating rod and the heating box to keep the materials in a molten state, to prevent the raw materials in the heating temporary storage tube from being hardened when cooled and affecting subsequent use. The raw materials are continuously transported into the heating temporary storage tube, so that the raw materials enter the discharge pipe, and then the raw materials are diverted by the forming block, so that the raw materials are discharged from the lower end of the discharge pipe in a ring shape. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a front cross-sectional structural schematic diagram of the utility model;

[0017] Figure 3 This is a schematic diagram of the top view of the heating temporary storage tube of the utility model;

[0018] Figure 4 This is a schematic diagram of the top view of the discharge pipe of the utility model;

[0019] In the figure: 1. Heating temporary storage tube; 2. Discharge tube; 3. First fixed plate; 4. Heating rod; 5. Heating box; 6. Second fixed plate; 7. Forming block; 8. Temperature sensor; 9. Heating plate; 10. Connecting plate; 11. Display screen; 12. Warning light; 13. Feeding tube. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, in the description of the utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0021] See also Figures 1 to 4 An extrusion blow molding machine includes a heating temporary storage tube 1, the lower end of the heating temporary storage tube 1 is connected to a discharge pipe 2, the upper end of the interior of the heating temporary storage tube 1 is fixedly connected to a first fixing plate 3, the lower end surface of the first fixing plate 3 is fixedly connected to a heating rod 4, and the interior of the heating temporary storage tube 1 is fixedly connected to a heating box 5 located below the heating rod 4;

[0022] A second fixing plate 6 is fixedly connected to the inner upper end of the discharge pipe 2 , and a forming block 7 located inside the discharge pipe 2 is fixedly connected to the lower end surface of the second fixing plate 6 .

[0023] In this embodiment: first, the heating temporary storage tube 1 is connected to the discharge port of the extrusion blow molding machine through the feed pipe 13, and then the heating rod 4 and the heating box 5 start to heat to preheat the heating temporary storage tube 1. Subsequently, the raw material enters the heating temporary storage tube 1 through the feed pipe 13, and the raw material is heated by the heating rod 4 and the heating box 5 to keep the material in a molten state to prevent the raw material in the heating temporary storage tube 1 from being hardened by cold and affecting subsequent use. The raw material is continuously transported into the heating temporary storage tube 1 to allow the raw material to enter the discharge pipe 2, and then the raw material is diverted by the forming block 7, so that the raw material is discharged from the lower end of the discharge pipe 2 in a circular ring shape.

[0024] As a technical optimization solution of the present invention, a temperature sensor 8 is installed on the upper end surface of the second fixing plate 6 .

[0025] In this embodiment, the temperature sensor 8 is convenient for real-time detection of the temperature of the raw materials inside the heating temporary storage tube 1.

[0026] As a technical optimization solution of the present invention, a plurality of uniformly distributed heating plates 9 are installed inside the heating box 5 .

[0027] In this embodiment: a plurality of heating plates 9 facilitate heating the raw materials through the heating box 5 .

[0028] As a technical optimization solution of the utility model, the outer wall of the heating temporary storage tube 1 is fixedly connected with a connecting plate 10, the other end of the connecting plate 10 is fixedly connected with a display screen 11, and the upper end surface of the connecting plate 10 is fixedly connected with an alarm light 12.

[0029] In this embodiment: the display screen 11 is convenient for displaying the temperature detected by the temperature sensor 8 in digital form, and the alarm light 12 is convenient for warning the staff.

[0030] As a technical optimization solution of the present invention, the temperature sensor 8 is electrically connected to the display screen 11 and the warning light 12 respectively.

[0031] In this embodiment: it is convenient to transmit the temperature data detected by the temperature sensor 8 to the display screen 11. When the temperature sensor 8 detects that the temperature of the raw materials inside the heating temporary storage tube 1 is low, the temperature sensor 8 controls the alarm light 12 to flash to warn the staff.

[0032] As a technical optimization solution of the utility model, the upper end of the heating temporary storage tube 1 is connected to a feed pipe 13.

[0033] In this embodiment: the feed pipe 13 is convenient for conveying raw materials into the heating temporary storage tube 1.

[0034] Working principle: firstly, the heating temporary storage tube 1 is connected to the discharge port of the extrusion blow molding machine through the feed pipe 13, and then the heating rod 4 and the heating box 5 start to heat and preheat the heating temporary storage tube 1. Then, the raw material enters the heating temporary storage tube 1 through the feed pipe 13, and the raw material is heated by the heating rod 4 and the heating box 5 to keep the material in a molten state, so as to prevent the raw material in the heating temporary storage tube 1 from being hardened by cold and affecting subsequent use, and the raw material is continuously transported into the heating temporary storage tube 1, so that the raw material enters the discharge pipe 2, and then the raw material is diverted by the forming block 7, so that the raw material is discharged from the lower end of the discharge pipe 2 in a ring shape;

[0035] The temperature sensor 8 detects the temperature of the raw materials inside the heating temporary storage tube 1 in real time, and then feeds back the detection data to the display screen 11. When the temperature sensor 8 detects that the temperature of the raw materials inside the heating temporary storage tube 1 is low, the temperature sensor 8 controls the alarm light 12 to flash to warn the staff.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An extrusion blow molding machine, comprising a heating temporary storage tube (1), wherein the lower end of the heating temporary storage tube (1) is connected to a discharge pipe (2), characterized in that: The upper end of the interior of the heating temporary storage tube (1) is fixedly connected to a first fixing plate (3), the lower end surface of the first fixing plate (3) is fixedly connected to a heating rod (4), and the interior of the heating temporary storage tube (1) is fixedly connected to a heating box (5) located below the heating rod (4); A second fixing plate (6) is fixedly connected to the inner upper end of the discharge pipe (2), and a forming block (7) located inside the discharge pipe (2) is fixedly connected to the lower end surface of the second fixing plate (6).

2. An extrusion blow molding machine according to claim 1, characterized in that: A temperature sensor (8) is mounted on the upper end surface of the second fixing plate (6).

3. An extrusion blow molding machine according to claim 1, characterized in that: A plurality of evenly distributed heating plates (9) are installed inside the heating box (5).

4. An extrusion blow molding machine according to claim 2, characterized in that: The outer wall of the heating temporary storage tube (1) is fixedly connected to a connecting plate (10), the other end of the connecting plate (10) is fixedly connected to a display screen (11), and the upper end surface of the connecting plate (10) is fixedly connected to an alarm light (12).

5. An extrusion blow molding machine according to claim 4, characterized in that: The temperature sensor (8) is electrically connected to the display screen (11) and the warning light (12) respectively.

6. An extrusion blow molding machine according to claim 1, characterized in that: The upper end of the heating temporary storage tube (1) is connected to a feed pipe (13).

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