Blow molding machine for thermoplastic material processing

Abstract

The utility model discloses a blow molding machine for thermoplastic material processing, which relates to the technical field of thermoplastic material processing and comprises a blow molding machine body, a lifting seat is arranged on the blow molding machine body, a mounting frame is arranged on the lifting seat, a heat dissipation cavity is arranged in the mounting frame, a miniature air blower is arranged on one side of the mounting frame, and the miniature air blower is arranged on the other side of the mounting frame. The other side of the installation frame is communicated with the heat dissipation cavity, and air cooling fins connected with the inner side wall of the installation frame are arranged in the heat dissipation cavity. According to the utility model, the heat dissipation cavity, the micro air blower, the heat-conducting fins and the air cooling fins are arranged, so that a bottle preform can be quickly cooled after blow molding, and the processing rate of a thermoplastic material is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of thermoplastic material processing, in particular to a blow molding machine for thermoplastic material processing. Background Art

[0002] Blow molding technology is one of the commonly used technologies for plastic bottle production. A tubular plastic preform is obtained by extrusion or injection molding of a thermoplastic material. The preform is placed in a split mold under softening temperature conditions. After the mold is closed, hot compressed air is introduced into the preform to inflate the plastic preform and form it tightly against the inner wall of the mold. However, the existing blow molding mold has a poor cooling effect and a slow cooling rate, which affects the demoulding rate.

[0003] The existing patent (application number: CN212528643U) proposes a blow molding machine for processing thermoplastic materials, including a base, one side of the top of the base is fixedly connected to three mold supporting devices, the tops of the three mold supporting devices are symmetrically provided with a pair of mold mounting shells, the other side of the top of the base is fixedly connected to a heating box, the top of the heating box is fixedly connected to a heating channel, a loading port is opened on one side of the heating box, one end of the heating channel is fixedly connected to a blow molding channel, and one side of the blow molding channel is fixedly connected to an air pump machine.

[0004] The above-mentioned blow molding machine for processing thermoplastic materials forms the preform by allowing it to cool naturally on the inner wall of the mold. However, the speed of natural cooling and forming is slow, which results in a long waiting time for demolding. This affects the speed of the overall processing flow and causes serious consequences such as the failure to meet production targets on time.

[0005] In view of this, this application is hereby filed. Utility Model Content

[0006] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a blow molding machine for processing thermoplastic materials to achieve the purpose of rapid cooling and demoulding.

[0007] In order to solve the above technical problems, the utility model provides a blow molding machine for processing thermoplastic materials, including a blow molding machine, a lifting seat is provided on the blow molding machine, a mounting frame is provided on the lifting seat, a heat dissipation cavity is opened in the mounting frame, a micro-blower is provided on one side of the mounting frame, and the other side of the mounting frame is connected to the heat dissipation cavity, and the heat dissipation cavity is provided with air-cooling fins connected to the inner wall of the mounting frame.

[0008] Furthermore, the air-cooling fins are arranged in a wave shape.

[0009] Furthermore, a heat conducting sheet is provided on the inner wall side of the mounting frame, and the heat conducting sheet is fixedly connected to the air cooling fins.

[0010] Furthermore, there are two heat conducting plates respectively arranged on the inner wall side and bottom surface of the mounting frame, and the heat conducting plate on the bottom surface is also connected to air cooling fins.

[0011] Preferably, a baffle is provided on the other side of the mounting frame, an air outlet and a guide groove are formed on the baffle, a blocking plate is provided on one side of the air outlet, the blocking plate is connected to a guide block, the guide block is adapted to the guide groove, and a limiting block is provided on the guide block.

[0012] Furthermore, a spring is provided between the limit block and the baffle plate, the spring is sleeved along the outer wall of the guide block, and two ends of the spring are respectively fixedly connected to the limit block and the baffle plate.

[0013] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art.

[0014] In the utility model, a heat dissipation cavity is provided, and a micro blower, a heat conducting sheet and an air cooling fin are arranged, so that the bottle embryo can be quickly cooled after blow molding, thereby improving the processing rate of the thermoplastic material. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work. In the accompanying drawings:

[0016] Figure 1 A top view of a blow molding machine for processing thermoplastic materials;

[0017] Figure 2 It is a schematic diagram of the installation frame structure of a blow molding machine for processing thermoplastic materials;

[0018] Figure 3 The present invention is a schematic diagram of a plugging plate structure of a blow molding machine for processing thermoplastic materials;

[0019] Figure 4 The present invention is a schematic diagram of the internal structure of a mounting frame of a blow molding machine for processing thermoplastic materials.

[0020] Numbers in the figure:

[0021] 1. Blow molding machine; 101. Lifting seat;

[0022] 2. Mounting frame; 201. Heat dissipation chamber; 202. Micro blower; 203. Heat conducting sheet; 204. Air cooling fin; 205. Baffle; 206. Air outlet; 207. Guide groove;

[0023] 3. Blocking plate; 301. Guide block; 302. Spring; 303. Limit block.

[0024] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0025] The embodiments of the present utility model are described in detail below.

[0026] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0028] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] A blow molding machine 1 for processing thermoplastic materials is one of the commonly used devices in the production of plastic bottles. A tubular plastic preform is obtained by extruding or injection molding a thermoplastic material. The preform is placed in a split mold under softening temperature conditions. After the mold is closed, hot compressed air is introduced into the preform to inflate the plastic preform and tightly adhere to the inner wall of the mold to form it. However, the existing blow molding mold has a poor cooling effect and a slow cooling rate, which affects the demoulding rate.

[0031] like Figures 1 to 4 As shown, the utility model provides a blow molding machine 1 for processing thermoplastic materials.

[0032] Specifically, by Figure 1-4 The invention provides a blow molding machine 1, which includes a blow molding component and a preform conveyor belt at one end of the blow molding machine 1, a lifting seat 101 is provided on the blow molding machine 1, a mounting frame 2 is provided on the lifting seat 101, a slot for plugging in the mold is provided on the mounting frame 2, a heat dissipation cavity 201 is provided in the mounting frame 2, a micro-blower 202 is provided on one side of the mounting frame 2, the other side of the mounting frame 2 is connected with the heat dissipation cavity 201, and an air-cooling fin 204 connected with the inner wall of the mounting frame 2 is provided in the heat dissipation cavity 201.

[0033] In the utility model, a heat dissipation cavity 201 is provided in the mounting frame 2, a micro blower 202 is arranged on one side of the mounting frame 2, and the other side of the mounting frame 2 is connected with the heat dissipation cavity 201, so that after the bottle embryo is blow-molded in the mold, the micro blower 202 can be started to allow cold air to pass quickly through the heat dissipation cavity 201 to take away the heat of the contact surface of the mounting frame 2 and the mold, so that the mold can be cooled quickly.

[0034] Furthermore, as a specific embodiment of the present invention, the present invention provides a blow molding machine 1 for processing thermoplastic materials.

[0035] Specifically, Figure 4 As shown, the air-cooling fins 204 are arranged in a wave shape.

[0036] In the present invention, by configuring the air-cooling fins 204 to be wave-shaped, the contact area between the air-cooling fins 204 and the cold air is increased, thereby further enhancing the heat dissipation effect.

[0037] Furthermore, as a specific embodiment of the present invention, the present invention provides a blow molding machine 1 for processing thermoplastic materials.

[0038] Specifically, Figure 4 As shown, a heat conducting sheet 203 is provided in the inner wall side of the mounting frame 2 , the heat conducting sheet 203 is a copper sheet, and the heat conducting sheet 203 is fixedly connected to the air cooling fins 204 .

[0039] In the utility model, a copper heat conducting plate 203 is arranged in the inner wall of the mounting frame 2, and the air cooling fin 204 is fixedly connected to the heat conducting plate 203, thereby improving the heat exchange efficiency between the mold placed in the mounting frame 2 and the air cooling fin 204, and further enhancing the cooling and molding speed.

[0040] Furthermore, as a specific embodiment of the present invention, the present invention provides a blow molding machine 1 for processing thermoplastic materials.

[0041] Specifically, Figure 4 As shown, there are two heat conducting sheets 203 respectively arranged on the inner wall side and bottom surface of the mounting frame 2 , and air cooling fins 204 are also connected to the heat conducting sheets 203 on the bottom surface.

[0042] In the present invention, by arranging the heat conducting sheet 203 and the air cooling fins 204 adapted thereto on the bottom surface of the inner wall of the mounting frame 2, the bottom of the mold is also cooled, further enhancing the cooling and molding speed of the preform in the mold.

[0043] Furthermore, as a specific embodiment of the present invention, the present invention provides a blow molding machine 1 for processing thermoplastic materials.

[0044] Specifically, Figure 3 and Figure 4 As shown, preferably, a baffle plate 205 is provided on the other side of the mounting frame 2, an air outlet 206 and a guide groove 207 are provided on the baffle plate 205, a blocking plate 3 is provided on one side of the air outlet 206, the blocking plate 3 is connected to a guide block 301, the guide block 301 is adapted to the guide groove 207, and a limiting block 303 is provided on the guide block 301.

[0045] In the utility model, a baffle 205 is provided on the other side of the mounting frame 2, an air outlet 206 is provided on the baffle 205, and a blocking plate 3 is provided on one side of the air outlet 206, so that the blocking plate 3 can block the air outlet 206, so that the heat dissipation cavity 201 is closed during the blow molding of the bottle embryo, so that the heat is more evenly heated and the quality of the finished embryo is higher. A guide groove 207 is provided on the baffle 205, and a guide block 301 adapted to the guide groove 207 is connected to the blocking plate 3, so that the blocking plate 3 can move along the opening direction of the guide groove 207, and the heat dissipation cavity 201 can be selectively blocked without reducing the quality of the bottle embryo molding, and it can also be pulled open without affecting the heat dissipation effect. By connecting the guide block 301 with a limiting block 303, when the staff pulls the blocking plate 3 and the micro-blower 202 blows cold air, there is no need to worry that the guide block 301 excessively slides out of the baffle 205, causing the blocking plate 3 to fall off.

[0046] Furthermore, as a specific embodiment of the present invention, the present invention provides a blow molding machine 1 for processing thermoplastic materials.

[0047] Specifically, Figure 3 and Figure 4 As shown, a spring 302 is provided between the limit block 303 and the baffle 205 . The spring 302 is sleeved along the outer wall of the guide block 301 . Two ends of the spring 302 are fixedly connected to the limit block 303 and the baffle 205 , respectively.

[0048] In the utility model, a spring 302 is arranged between the limit block 303 and the baffle 205, and the spring 302 is sleeved along the outer wall of the guide block 301, so that the two ends of the spring 302 are fixedly connected to the limit block 303 and the baffle 205 respectively, so that under normal conditions, the blocking plate 3 will fit tightly with the air outlet 206 to block the heat dissipation cavity 201, and the micro-blower 202 will continue to inject cold air into the heat dissipation cavity 201 after starting. After the heat dissipation cavity 201 is injected with enough cold air, the pressure in the heat dissipation cavity 201 increases, the spring 302 will be deformed, and the blocking plate 3 will move away from the air outlet 206, so that the cold air can be sent out from the air outlet 206.

[0049] Working principle: When in use, select a mold according to the product to be blow-molded, insert it into the groove on the mounting frame 2, and then adjust the height through the lifting seat 101 to start blow molding. After the blow molding is completed, start the micro blower 202 to inject cold air into the heat dissipation cavity 201. When the pressure in the heat dissipation cavity 201 increases, the blocking plate 3 will be ejected, so that the cold air blown by the micro blower 202 will quickly pass through the air cooling fins 204 to take away the heat on the heat conductive plate 203, and then be discharged from the air outlet 206, so that the bottle embryo is quickly cooled and formed. After the bottle embryo is cooled and formed, the mounting frames 2 can be separated by the electric telescopic rod set between the two mounting frames 2, driving the mold separation to complete the demolding of the bottle embryo.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A blow molding machine for processing thermoplastic materials, comprising a blow molding machine (1), wherein a lifting seat (101) is provided on the blow molding machine (1), characterized in that: The lifting seat (101) is provided with a mounting frame (2), a heat dissipation cavity (201) is provided in the mounting frame (2), a micro blower (202) is provided on one side of the mounting frame (2), the other side of the mounting frame (2) is connected to the heat dissipation cavity (201), and air cooling fins (204) connected to the inner wall of the mounting frame (2) are provided in the heat dissipation cavity (201).

2. A blow molding machine for processing thermoplastic materials according to claim 1, characterized in that: The air-cooling fins (204) are arranged in a wave shape.

3. A blow molding machine for processing thermoplastic materials according to claim 2, characterized in that: A heat conducting sheet (203) is provided on the inner wall side of the installation frame (2), and the heat conducting sheet (203) is fixedly connected to the air cooling fin (204).

4. A blow molding machine for processing thermoplastic materials according to claim 3, characterized in that: The heat conducting plates (203) have two pieces, which are respectively arranged on the inner wall side and bottom surface of the installation frame (2), and the heat conducting plates (203) on the bottom surface are also connected to air cooling fins (204).

5. A blow molding machine for processing thermoplastic materials according to claim 4, characterized in that: A baffle (205) is provided on the other side of the mounting frame (2), an air outlet (206) and a guide groove (207) are provided on the baffle (205), a blocking plate (3) is provided on one side of the air outlet (206), the blocking plate (3) is connected to a guide block (301), the guide block (301) is adapted to the guide groove (207), and a limiting block (303) is provided on the guide block (301).

6. A blow molding machine for processing thermoplastic materials according to claim 5, characterized in that: A spring (302) is provided between the limit block (303) and the baffle (205), and the spring (302) is sleeved along the outer wall of the guide block (301), and two ends of the spring (302) are respectively fixedly connected to the limit block (303) and the baffle (205).

Images