Air return pipe convenient to maintain for film blowing machine

Abstract

The utility model relates to the technical field of film blowing machines, in particular to an air return pipe convenient to maintain for a film blowing machine. According to the technical scheme, the film blowing machine comprises a mounting panel, a second feeding pipe, an air return pipe body, a film blowing machine body and a fixing plate, the film blowing machine body is mounted on the top end face of the mounting panel, a charging barrel is arranged on the side end face of the film blowing machine body, and a control panel is mounted on the film blowing machine body; a second coil pipe is installed on the charging barrel in an attached mode. A first coil pipe is installed on the second feeding pipe in an attached mode. Fixing pipes are fixedly embedded into the top end surface and the rear end surface of the film blowing machine body; connecting blocks are mounted at the two ends of the air return pipe body; a first hydraulic rod is installed on the rear end face of the fixing plate, and a frame is arranged on an output shaft of the first hydraulic rod. And hydraulic rods II are mounted at the two ends of the frame. According to the utility model, the disassembly and assembly of the air return pipe of the film blowing machine are met, the inconvenience of later maintenance caused by integrated installation is avoided, and the generated heat can be recycled.

Description

Technical Field

[0001] The utility model relates to the technical field of film blowing machines, in particular to an air return pipe for a film blowing machine which is easy to maintain. Background Art

[0002] The film blowing machine heats and melts plastic particles and then blows them into thin films. There are many types of film blowing machines, including PE, POF, PVC, etc. The new materials blown out with brand new particles are new materials with uniform color, clean and good bag stretching.

[0003] There is a U-shaped structure on the return air duct of the existing film blowing machine. When the temperature is low in winter, the low molecular substances precipitated from the film carried by the air flow passing through the return air duct are easy to deposit on the U-shaped structure. When the impurity deposition amount reaches a certain level, it will hinder the normal ventilation of the return air duct, and the staff needs to clean and dredge it. Since the traditional return air duct is an integrated structure and cannot be disassembled, the work difficulty is increased. In addition, the film blowing machine will generate heat when in use, and the heat is mostly directly volatilized and wasteful. Therefore, the film blowing machine needs to be improved. Utility Model Content

[0004] The utility model aims to provide an air return duct for a film blowing machine which is easy to maintain, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a return air duct for a film blowing machine that is easy to maintain, comprising a mounting panel, a feed pipe 2, a return air duct body, a film blowing machine body and a fixing plate,

[0006] The top end surface of the installation panel is installed with a film blowing machine body, and the side end surface of the film blowing machine body is provided with a barrel, and a control panel is installed on the film blowing machine body;

[0007] The barrel is fitted with a second coil;

[0008] The first coil is fitted on the second feed pipe;

[0009] The top and rear ends of the film blowing machine body are both embedded with fixed tubes;

[0010] Both ends of the return air duct body are equipped with connection blocks;

[0011] A hydraulic rod 1 is installed on the rear end surface of the fixed plate, and a frame is arranged on the output shaft of the hydraulic rod 1;

[0012] Hydraulic rods 2 are installed at both ends of the frame, and a clamping frame is arranged on the output shaft of the hydraulic rod 2.

[0013] Preferably, a bracket is welded to the bottom end surface of the barrel, and the bottom end surface of the bracket is welded to the mounting panel. The barrel can be mounted on the mounting panel through the bracket.

[0014] Preferably, a support block is welded to the bottom end surface of the installation panel, and a bearing base is welded to the bottom end surface of the support block. The installation panel can be supported by the cooperation of the support block and the bearing base.

[0015] Preferably, a pump body is installed on the barrel, and the pump body is in gas communication with coil 2, and coil 2 is in gas communication with coil 1. External gas can be drawn by opening the pump body and injected into coil 2, and the gas in coil 2 can flow into coil 1 and be discharged.

[0016] Preferably, the bottom end surface of the feed pipe 2 is embedded and fixed with the feed pipe 1, the bottom end surface of the feed pipe 1 is embedded and fixed in the barrel, and a valve is installed on the feed pipe 1 through a flange. The bottom end surface of the feed pipe 1 is embedded and fixed in the barrel, so that the material entering the feed pipe 2 can be injected into the barrel through the feed pipe 1.

[0017] Preferably, a driving mechanism is installed in the second feed pipe through a limiting frame, and a stirring rod is arranged on the output shaft of the driving mechanism through a rotating shaft. When the driving mechanism is turned on, the driving mechanism can drive the stirring rod to rotate through the rotating shaft.

[0018] Preferably, a bolt is threadedly mounted on the connection block, and the bolt is threadedly mounted on the fixed pipe. The connection block can be connected to the fixed pipe by threading the bolt on the fixed pipe.

[0019] Preferably, a guide rod 1 is welded to the rear end face of the frame, and the guide rod is sleeved in the fixed plate. When the frame moves, the guide rod is sleeved in the fixed plate to limit the position and avoid deviation during use.

[0020] Preferably, a connecting frame is welded to the bottom end face of the fixing plate, and the connecting frame is welded to the rear end face of the mounting panel. The connecting frame is welded to the rear end face of the mounting panel, so that the fixing plate is mounted on the rear end face of the mounting panel through the connecting frame.

[0021] Preferably, a second guide rod is welded to the side end surface of the clamping frame, and the second guide rod is sleeved in the frame. When the clamping frame moves, the second guide rod is sleeved in the frame to limit the position and avoid deviation.

[0022] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0023] 1. The utility model provides a barrel. When the personnel use the film blowing machine body, they can inject the required material into the feed pipe two and discharge it into the barrel by opening the valve on the feed pipe one. When discharged, the material is heated in the barrel and squeezed out into the film blowing machine body for film blowing processing. During processing, the external gas is drawn by opening the pump body and can be injected into the coil two, and the gas in the coil two can enter the coil one to circulate and be discharged, so that the heat generated by the barrel can be exchanged with the gas circulating in the coil two, and the gas after the heat exchange can enter the coil one to heat the feed pipe two, so that the internal material can be heated after the feed pipe two is heated. When heating, the driving mechanism can be opened to drive the stirring rod to stir the material through the rotating shaft, so that the material is heated more evenly, the material can be preheated, and the heat waste is avoided and the heat is recovered.

[0024] 2. The utility model sets a return air duct body. When personnel use the film blowing machine body, the return air duct body is installed on the fixed pipe by a combination of connecting blocks and bolts, so that the return air duct body can be disassembled by rotating and removing the bolts after use, avoiding internal blockage caused by the integrated installation and being unable to be disassembled and maintained. After installation, the hydraulic rod 1 can be opened to push the frame to approach the return air duct body. After approaching, the hydraulic rod 2 can be opened to push the clamping frame to clamp the return air duct body, so that the return air duct body can be limited for a second time, and can be reset after limiting for disassembly, thereby meeting the needs of later use and return air. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0026] Figure 2 It is a side view structural schematic diagram of the utility model;

[0027] Figure 3 It is a rear view structural schematic diagram of the utility model;

[0028] Figure 4 This is a schematic diagram of the top view of the feed pipe 2 of the utility model;

[0029] Figure 5 This is a schematic diagram of the main structure of the framework of the present utility model.

[0030] In the figure: 1. support block; 2. bearing base; 3. installation panel; 4. bracket; 5. feed pipe 1; 6. feed pipe 2; 7. limit frame; 8. drive mechanism; 9. coil 1; 10. barrel; 11. coil 2; 12. pump body; 13. connecting block; 14. return air duct body; 15. bolt; 16. fixing pipe; 17. control panel; 18. film blowing machine body; 19. guide rod 1; 20. hydraulic rod 1; 21. frame; 22. fixing plate; 23. connecting frame; 24. rotating shaft; 25. stirring rod; 26. guide rod 2; 27. hydraulic rod 2; 28. clamping frame. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Embodiment 1

[0033] like Figure 1-Figure 5 As shown, the utility model provides a return air duct for a film blowing machine that is easy to maintain, comprising a mounting panel 3, a feed pipe 26, a return air duct body 14, a film blowing machine body 18 and a fixing plate 22.

[0034] The top end surface of the installation panel 3 is installed with a film blowing machine body 18, and the side end surface of the film blowing machine body 18 is provided with a barrel 10, and a control panel 17 is installed on the film blowing machine body 18;

[0035] The barrel 10 is fitted with a coil 11;

[0036] A coil 9 is fitted on the upper side of the feed pipe 2 6;

[0037] The top and rear ends of the film blowing machine body 18 are both embedded with a fixing tube 16;

[0038] Connecting blocks 13 are installed at both ends of the return air duct body 14;

[0039] A hydraulic rod 20 is installed on the rear end surface of the fixed plate 22, and a frame 21 is provided on the output shaft of the hydraulic rod 20;

[0040] Hydraulic rods 27 are installed at both ends of the frame 21 , and a clamping frame 28 is provided on the output shaft of the hydraulic rod 27 .

[0041] The bottom end surface of the barrel 10 is welded with a bracket 4 , and the bottom end surface of the bracket 4 is welded to the mounting panel 3 , and the barrel 10 can be mounted on the mounting panel 3 through the bracket 4 .

[0042] A support block 1 is welded to the bottom end surface of the installation panel 3 , and a bearing base 2 is welded to the bottom end surface of the support block 1 . The installation panel 3 can be supported by the cooperation of the support block 1 and the bearing base 2 .

[0043] A pump body 12 is installed on the barrel 10, and the pump body 12 is connected to the gas of the coil 2 11, and the gas of the coil 2 11 is connected to the gas of the coil 1 9. By opening the pump body 12, external gas can be drawn in and injected into the coil 2 11, and the gas in the coil 2 11 can enter the coil 1 9 for circulation and discharge.

[0044] The bottom end surface of the feed pipe 2 6 is embedded and fixed with the feed pipe 1 5, and the bottom end surface of the feed pipe 1 5 is embedded and fixed in the barrel 10, and a valve is installed on the feed pipe 5 through a flange, and the bottom end surface of the feed pipe 5 is embedded and fixed in the barrel 10, so that the material entering the feed pipe 2 6 can be injected into the barrel 10 through the feed pipe 5, and the discharge of the material can be controlled by the valve on the feed pipe 5.

[0045] A driving mechanism 8 is installed in the feed pipe 6 through a limiting frame 7, and a stirring rod 25 is arranged on the output shaft of the driving mechanism 8 through a rotating shaft 24. When the driving mechanism 8 is turned on, the driving mechanism 8 can drive the stirring rod 25 to rotate through the rotating shaft 24.

[0046] Based on Example 1: When personnel are using the film blowing machine body 18, they can inject the required material into the feed pipe 2 6 and discharge it into the barrel 10 by opening the valve on the feed pipe 1 5. When discharged, the material is heated in the barrel 10 and extruded into the film blowing machine body 18 for film blowing processing. During processing, the external gas is drawn by opening the pump body 12 and can be injected into the coil 2 11, and the gas in the coil 2 11 can enter the coil 1 9 for circulation and discharge, so that the heat generated by the barrel 10 can be exchanged with the gas circulating in the coil 2 11, and the gas after heat exchange can enter the coil 1 9 to heat the feed pipe 2 6, so that the feed pipe 2 6 can heat the internal material after being heated. When heating, the driving mechanism 8 can be opened to drive the stirring rod 25 through the rotating shaft 24 to stir the material, so that the material is heated more evenly, and when heated, the valve on the feed pipe 1 5 can be closed to heat the material before injection.

[0047] Embodiment 2

[0048] like Figure 1-Figure 5 As shown, the utility model provides a return air duct for a film blowing machine that is easy to maintain. Compared with the first embodiment, the present embodiment further includes: a mounting panel 3, a feed pipe 2 6, a return air duct body 14, a film blowing machine body 18 and a fixing plate 22.

[0049] The top end surface of the installation panel 3 is installed with a film blowing machine body 18, and the side end surface of the film blowing machine body 18 is provided with a barrel 10, and a control panel 17 is installed on the film blowing machine body 18;

[0050] The barrel 10 is fitted with a coil 11;

[0051] A coil 9 is fitted on the upper side of the feed pipe 2 6;

[0052] The top and rear ends of the film blowing machine body 18 are both embedded with a fixing tube 16;

[0053] Connecting blocks 13 are installed at both ends of the return air duct body 14;

[0054] A hydraulic rod 20 is installed on the rear end surface of the fixed plate 22, and a frame 21 is provided on the output shaft of the hydraulic rod 20;

[0055] Hydraulic rods 27 are installed at both ends of the frame 21 , and a clamping frame 28 is provided on the output shaft of the hydraulic rod 27 .

[0056] And as is well known to those skilled in the art, the provision of the control panel 17, the drive mechanism 8, the pump body 12, the film blowing machine body 18, the hydraulic rod 1 20 and the hydraulic rod 2 27 is commonplace, and the control panel 17 can be connected to the drive mechanism 8, the pump body 12, the film blowing machine body 18, the hydraulic rod 1 20 and the hydraulic rod 2 27 via wires, and the control panel 17, the drive mechanism 8, the pump body 12, the film blowing machine body 18, the hydraulic rod 1 20 and the hydraulic rod 2 27 can be powered by an external power supply, which are all conventional means or common knowledge and will not be elaborated here, and those skilled in the art can make any optional selections according to their needs or convenience.

[0057] A bolt 15 is threadedly installed on the connecting block 13, and the bolt 15 is threadedly installed on the fixing pipe 16. The bolt 15 is threadedly installed on the fixing pipe 16, so that the connecting block 13 can be connected to the fixing pipe 16. When connecting, a sealing gasket can be installed at the connection between the connecting block 13 and the fixing pipe 16 for use.

[0058] A guide rod 19 is welded to the rear end face of the frame 21, and the guide rod 19 is sleeved in the fixed plate 22. When the frame 21 moves, the guide rod 19 is sleeved in the fixed plate 22 to limit the movement and avoid displacement during use.

[0059] A connecting frame 23 is welded to the bottom end surface of the fixing plate 22 , and the connecting frame 23 is welded to the rear end surface of the mounting panel 3 , so that the fixing plate 22 is installed on the rear end surface of the mounting panel 3 through the connecting frame 23 .

[0060] A second guide rod 26 is welded to the side end surface of the clamping frame 28, and the second guide rod 26 is sleeved in the frame 21. When the clamping frame 28 moves, the second guide rod 26 is sleeved in the frame 21 to limit the position and avoid deviation.

[0061] Based on Example 2: When personnel use the film blowing machine body 18, the return air duct body 14 is installed on the fixed pipe 16 using a combination of the connecting block 13 and the bolt 15, so that the return air duct body 14 can be disassembled by rotating and removing the bolt 15 after use, avoiding internal blockage caused by the integrated installation and being unable to be disassembled and maintained. After installation, the hydraulic rod 1 20 can be opened to push the frame 21 to approach the return air duct body 14. After approaching, the hydraulic rod 2 27 can be opened to push the clamping frame 28 to clamp the return air duct body 14, so that the return air duct body 14 can be limited for a second time, and can be reset after limiting for disassembly.

[0062] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A return air duct for a film blowing machine that is easy to maintain, comprising a mounting panel (3), a feed pipe (6), a return air duct body (14), a film blowing machine body (18) and a fixing plate (22), characterized in that: A film blowing machine body (18) is installed on the top end surface of the installation panel (3), a material barrel (10) is provided on the side end surface of the film blowing machine body (18), and a control panel (17) is installed on the film blowing machine body (18); The barrel (10) is fitted with a second coil (11); The feed pipe 2 (6) is fitted with a coil pipe 1 (9); The top end surface and the rear end surface of the film blowing machine body (18) are both embedded and fixed with a fixing tube (16); Both ends of the return air duct body (14) are equipped with connection blocks (13); A hydraulic rod 1 (20) is installed on the rear end surface of the fixed plate (22), and a frame (21) is arranged on the output shaft of the hydraulic rod 1 (20); Hydraulic rods 2 (27) are installed at both ends of the frame (21), and a clamping frame (28) is arranged on the output shaft of the hydraulic rod 2 (27).

2. The return air duct for a film blowing machine that is easy to maintain according to claim 1 is characterized in that: A bracket (4) is welded to the bottom end surface of the barrel (10), and the bottom end surface of the bracket (4) is welded to the mounting panel (3).

3. The return air duct for a film blowing machine that is easy to maintain according to claim 1 is characterized in that: A support block (1) is welded to the bottom end surface of the installation panel (3), and a bearing base (2) is welded to the bottom end surface of the support block (1).

4. The return air duct for a film blowing machine that is easy to maintain according to claim 1 is characterized in that: A pump body (12) is installed on the barrel (10), the pump body (12) is in gas communication with coil pipe 2 (11), and coil pipe 2 (11) is in gas communication with coil pipe 1 (9).

5. The return air duct for a film blowing machine that is easy to maintain according to claim 1 is characterized in that: The bottom end surface of the feed pipe 2 (6) is embedded and fixed with the feed pipe 1 (5), the bottom end surface of the feed pipe 1 (5) is embedded and fixed in the barrel (10), and a valve is installed on the feed pipe 1 (5) through a flange.

6. The return air duct for a film blowing machine that is easy to maintain according to claim 1 is characterized in that: A driving mechanism (8) is installed in the second feeding pipe (6) via a limiting frame (7), and a stirring rod (25) is arranged on the output shaft of the driving mechanism (8) via a rotating shaft (24).

7. The return air duct for a film blowing machine that is easy to maintain according to claim 1 is characterized in that: The connection block (13) is threadedly mounted with a bolt (15), and the bolt (15) is threadedly mounted on a fixing pipe (16).

8. The return air duct for a film blowing machine that is easy to maintain according to claim 1 is characterized in that: A guide rod 1 (19) is welded to the rear end surface of the frame (21), and the guide rod 1 (19) is sleeved in the fixing plate (22).

9. The return air duct for a film blowing machine that is easy to maintain according to claim 1, characterized in that: A connecting frame (23) is welded to the bottom end surface of the fixing plate (22), and the connecting frame (23) is welded to the rear end surface of the mounting panel (3).

10. The return air duct for a film blowing machine that is easy to maintain according to claim 1, characterized in that: A second guide rod (26) is welded to the side end surface of the clamping frame (28), and the second guide rod (26) is sleeved in the frame (21).

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