Die orifice gap adjusting mechanism of film blowing machine

Abstract

The utility model discloses a film blowing machine die orifice clearance adjusting mechanism in the related technical field of film blowing machines, which comprises a die head main body and a die core, a notch structure is arranged in the middle of the upper part of the die head main body, the middle section of the notch structure is a conical surface, and the position of the outer wall of the die core close to the lower part is a conical structure. The die core is installed in a notch of the die head body, a die opening gap is formed between the outer wall of the die core and the inner wall of the die head body, and an installation ring groove is formed in the middle of the bottom face of the die core. The matching position of the die core and the die head main body is of a conical surface structure, the adjustment of a die orifice gap is realized by adjusting the matching amount of the die core and the die head main body, good uniformity is achieved in the circumferential direction of adjustment matching, and the adjustment of the horizontal position of the supporting block is realized by rotating the adjusting end to drive the adjusting rod to rotate. And the supporting block is matched with the guide slope at the lower end of the connecting guide seat, so that the height position of the mold core is adjusted, and the adjusting process is simple.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the related technical field of blowing film machine, concretely relates to blowing film machine die gap adjusting mechanism. BACKGROUND

[0002] Blowing film machine is a kind of device that makes plastic particles into liquid by heating and then blows plastic film, and common products include garbage bags, preservative films and the like. As its products are beautiful and cheap, it has wide application in life. With the increasing application of blowing film machine, in order to improve productivity and reduce waste rate, enterprises pay more and more attention to the automation degree of blowing film machine, and the main factors affecting film forming quality are air volume and die gap adjustment. The application number CN202211307430.9 discloses a blowing film machine based on machine vision film thickness automatic adjustment, utilizes screw nut structure to drive sliding table to move, realizes die gap adjustment, and the adjusting structure is relatively complex, and only local die adjustment can be carried out during the adjusting process, so the uniformity of die gap is poor.

[0003] Therefore, the utility model is provided. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art, and provide blowing film machine die gap adjusting mechanism. In order to solve the above technical problems, the basic concept of the technical scheme adopted by the utility model is as follows:

[0005] The blowing film machine die gap adjusting mechanism comprises a die head main body and a die core, a notch structure is arranged at the middle position of the upper portion of the die head main body, the middle section of the notch structure is a conical surface, the outer wall of the die core is a conical structure close to the lower portion, the die core is installed in the notch of the die head main body, a die gap is formed between the outer wall of the die core and the inner wall of the die head main body, an installation ring groove is arranged at the middle position of the bottom surface of the die core, a connecting guide base is matched and installed in the installation ring groove, a guide inclined surface is arranged at the lower end of the connecting guide base, an adjusting sliding groove is arranged in the die head main body, a support block is slidably connected in the adjusting sliding groove, an adjusting rod is rotatably connected at the outer side of the support block, an adjusting end is arranged at the outer end position of the adjusting rod, the support surface of the support block is an inclined surface structure, the support surface of the support block is matched with the guide inclined surface of the connecting guide base, and the support height of the guide inclined surface is adjusted by horizontal movement of the support block.

[0006] As a further scheme of the utility model, the outer side wall of the installation ring groove is provided with external threads, the upper end of the connecting guide base is connected with the installation ring groove through threads, and the inner side wall of the installation ring groove is a smooth structure, so as to ensure the effective installation of the connecting guide base.

[0007] As a further scheme of the utility model: the side of the support block far from the support inclined plane is vertical plane structure, is provided with cooperation mounting hole on the vertical plane, cooperation mounting end head is provided with cooperation mounting end head on the end of the adjusting rod far from the adjusting end head, cooperation mounting end head is installed in cooperation mounting hole, and the adjustment of support block position is realized through cooperation mounting end head.

[0008] As a further scheme of the utility model: the outer wall of the die head main body is provided with an adjusting cooperation hole, the adjusting rod is installed in the adjusting cooperation hole through threaded connection, a bottom cover is installed on the bottom surface of the die head main body, a fixed counterbore is formed on the bottom cover, a fixed screw is installed in the fixed counterbore in a matched mode, and the fixed screw is used for fixed connection between the bottom cover and the die head main body.

[0009] As a further scheme of the utility model: a connecting rod mounting hole is formed on the bottom surface of the die core and located at the outside of the installation ring groove, an upper connecting rod is installed in the connecting rod mounting hole through threaded connection, a lower support connecting rod is arranged on the lower end of the upper connecting rod, an adjusting cooperation inner cavity is arranged on the upper part of the lower support connecting rod, and the lower end of the upper connecting rod is located in the adjusting cooperation inner cavity of the lower support connecting rod.

[0010] As a further scheme of the utility model: a spring two is arranged between the lower end of the upper connecting rod and the bottom surface of the adjusting cooperation inner cavity, a spring one is arranged on the outside of the upper connecting rod supported by the top surface of the lower support connecting rod, the spring one and the spring two are all selected from damping springs, and vibration in the adjustment process is reduced.

[0011] As a further scheme of the utility model: three groups of adjusting cooperation structures composed of the upper connecting rod, the lower support connecting rod, the spring one and the spring two are arranged in a circumferential direction, through holes are arranged on the bottom cover and the bottom surface of the die head main body in a corresponding mode, and the adjusting cooperation structure is used for limiting cooperation of gap adjustment.

[0012] After the above technical scheme is adopted, the utility model has the following beneficial effects compared with the prior art.

[0013] The cooperation position of the die core and the die head main body is a conical surface structure, the cooperation amount of the die core and the die head main body is adjusted to realize the adjustment of the die gap, and the adjusting cooperation circumferential direction has good uniformity.

[0014] The utility model discloses a rotation adjusting end head, drives the rotation of adjusting rod, realizes the adjustment of support block horizontal position, and the cooperation of support block and the guide slope of the lower end of connecting guide base further realizes the adjustment of mould core height position, and the operation of adjustment process is simple.

[0015] The utility model discloses a rotation adjusting end head, drives the rotation of adjusting rod, realizes the adjustment of support block horizontal position, and the cooperation of support block and the guide slope of the lower end of connecting guide base further realizes the adjustment of mould core height position, and the operation of adjustment process is simple. DRAWINGS

[0016] The drawings are part of the present application and provide further understanding of the utility model, and the illustrative embodiments of the utility model and the description thereof are used to explain the utility model, but do not constitute improper limitation on the utility model. Obviously, the drawings in the following description are only some embodiments, and other drawings can be obtained by those skilled in the art without creative labor. In the drawings:

[0017] Fig. 1 It is the structural schematic diagram of the utility model;

[0018] Fig. 2 It is the main sectional view of the utility model;

[0019] Fig. 3 It is the local enlarged view of A of the utility model.

[0020] In the drawing: 1, die head main part;2, mould core;3, adjusting end head;4, bottom cover;5, fixed counterbore;6, fixed screw;7, die gap;8, installation ring groove;9, connecting guide base;10, guide slope;11, support block;12, adjusting sliding slot;13, cooperation installation hole;14, cooperation installation end head;15, adjusting rod;16, adjusting cooperation hole;17, upper connecting rod;18, connecting rod installation hole;19, spring one;20, lower support connecting rod;21, adjusting cooperation inner cavity;22, spring two;23, through -hole.

[0021] It should be noted that these drawings and textual descriptions are not intended to limit the scope of the concept of the utility model in any way, but to illustrate the concept of the utility model to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model more clear, the technical scheme in the embodiments will be described clearly and completely in conjunction with the drawings of the embodiments of the utility model below, and the following embodiments are used to illustrate the utility model, but not to limit the scope of the utility model.

[0023] As Figs. 1 to 3As shown, the film blowing machine die gap adjusting mechanism, the die body 1 and the die core 2, the die body 1 is provided with a notch structure in the middle position of the upper part, the middle section of the notch structure is a conical surface, the outer wall of the die core 2 is a conical structure near the lower part, the die core 2 is installed in the notch of the die body 1, the outer wall of the die core 2 and the inner wall of the die body 1 form a die gap 7, the middle position of the bottom surface of the die core 2 is provided with a mounting ring groove 8, a connecting guide base 9 is matched and installed in the mounting ring groove 8, the lower end of the connecting guide base 9 is provided with a guide inclined surface 10, the die body 1 is provided with an adjusting sliding groove 12, the supporting block 11 is slidably connected in the adjusting sliding groove 12, the outer side of the supporting block 11 is rotatably connected with an adjusting rod 15, the outer end position of the adjusting rod 15 is provided with an adjusting end 3, the supporting surface of the supporting block 11 is an inclined surface structure, the supporting surface of the supporting block 11 and the guide inclined surface 10 of the connecting guide base 9 are matched to adjust the supporting height of the guide inclined surface 10 by the horizontal movement of the supporting block 11.

[0024] Wherein, the outer side wall of the mounting ring groove 8 is provided with external threads, the upper end of the connecting guide base 9 is connected with the mounting ring groove 8 through threads, the inner side wall of the mounting ring groove 8 is a smooth structure to ensure the effective installation of the connecting guide base 9.

[0025] The side of the supporting block 11 away from the supporting inclined surface is a vertical plane structure, the vertical plane is provided with a matched mounting hole 13, the end of the adjusting rod 15 away from the adjusting end 3 is provided with a matched mounting end 14, the matched mounting end 14 is installed in the matched mounting hole 13 to adjust the position of the supporting block 11 through the matched mounting end 14.

[0026] The outer wall of the die body 1 is provided with an adjusting matched hole 16, the adjusting rod 15 is installed in the adjusting matched hole 16 through thread connection, the bottom surface of the die body 1 is installed with a bottom cover 4, the bottom cover 4 is provided with a fixed counterbore 5, a fixed screw 6 is matched and installed in the fixed counterbore 5 to fixedly connect the bottom cover 4 and the die body 1.

[0027] The bottom surface of the die core 2 is processed with a connecting rod mounting hole 18 outside the mounting ring groove 8, an upper connecting rod 17 is installed in the connecting rod mounting hole 18 through thread connection, the lower end of the upper connecting rod 17 is provided with a lower supporting connecting rod 20, the upper part of the lower supporting connecting rod 20 is provided with an adjusting matched inner cavity 21, the lower end of the upper connecting rod 17 is located in the adjusting matched inner cavity 21 of the lower supporting connecting rod 20, when the connecting guide base 9 is supported and adjusted by the supporting block 11, the upper connecting rod 17 and the lower supporting connecting rod 20 are matched to provide a certain adjustment range for the lifting adjustment of the die core 2.

[0028] The lower end of the upper connecting rod 17 is provided with a spring 22 between the bottom surface of the adjusting and matching inner cavity 21, and the outer side of the upper connecting rod 17 supported by the top surface of the lower supporting connecting rod 20 is provided with a spring 19, and the springs 19 and 22 are all selected to be damping springs to reduce vibration during the adjusting process.

[0029] The adjusting and matching structure composed of the upper connecting rod 17, the lower supporting connecting rod 20, the spring 19 and the spring 22 is uniformly arranged in three groups in the circumferential direction, and the bottom cover 4 and the bottom surface of the die head main body 1 are correspondingly provided with through holes 23 for limiting the gap adjusting and matching structure.

[0030] The working principle of the utility model is: when adjusting the die gap 7, the adjusting end 3 is rotated, the adjusting rod 15 is driven to rotate by the adjusting end 3, the adjusting rod 15 is in threaded connection with the adjusting and matching hole 16, the matching installation end 14 of the adjusting rod 15 can rotate relative to the matching installation hole 13, thereby realizing the horizontal movement of the supporting block 11 along the adjusting sliding groove 12 in the extension and retraction process of the adjusting rod 15, when the supporting block 11 moves to one side of the die core 2, the die core 2 can be driven to move upward due to the cooperation of the supporting inclined surface of the supporting block 11 and the guide inclined surface 10 below the connecting guide base 9, the upper connecting rod 17, the lower supporting connecting rod 20, the spring 19 and the spring 22 are arranged between the die core 2 and the die head main body 1, the die core 2 can be effectively tensioned and limited by the springs 19 and 22, the stability of the die core 2 in the adjusting process is enhanced, the die core 2 is adjusted to move upward, the die gap 7 is increased, the die core 2 is adjusted to move downward, and the die gap 7 is reduced.

[0031] The matching position of the die core 2 and the die head main body 1 is a conical surface structure, the die gap 7 is adjusted by adjusting the matching amount of the die core 2 and the die head main body 1, the uniformity of the adjusting and matching circumferential direction is good, the adjusting end 3 is rotated to drive the adjusting rod 15 to rotate, the horizontal position of the supporting block 11 is adjusted, the supporting block 11 is matched with the guide inclined surface 10 at the lower end of the connecting guide base 9, thereby realizing the adjustment of the height position of the die core 2, and the adjusting process is simple to operate.

[0032] The above only is the preferred embodiment of the utility model, and does not limit the utility model in any form, although the utility model has disclosed as above with the preferred embodiment, however, is not used to limit the utility model, any person skilled in the art can make some changes or modifications for equivalent embodiments of equivalent changes with the above prompt technical content without departing from the technical scheme range of the utility model, but any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the utility model, all still belong to the range of the utility model scheme.

Claims

1. A mechanism for adjusting the gap between the die lip and the die core of a film blowing machine, comprising a die body (1) and a die core (2), characterized in that, The upper middle position of the die head body (1) is provided with a notch structure, the middle section of the notch structure is a conical surface, the outer wall of the die core (2) is a conical structure near the lower part, the die core (2) is installed in the notch of the die head body (1), the gap (7) is formed between the outer wall of the die core (2) and the inner wall of the die head body (1), the middle position of the bottom surface of the die core (2) is provided with a mounting ring groove (8), the connecting guide base (9) is matched and installed in the mounting ring groove (8), the lower end of the connecting guide base (9) is provided with a guide inclined surface (10), the adjusting sliding groove (12) is arranged in the die head body (1), the supporting block (11) is slidably connected in the adjusting sliding groove (12), the adjusting rod (15) is rotatably connected to the outer side of the supporting block (11), the adjusting end (3) is arranged at the outer end of the adjusting rod (15), the supporting surface of the supporting block (11) is an inclined surface structure, and the supporting surface of the supporting block (11) is matched with the guide inclined surface (10) of the connecting guide base (9).

2. The film blower die gap adjustment mechanism of claim 1, wherein, The outer side wall of the mounting ring groove (8) is provided with external threads, the upper end of the connecting guide base (9) is connected with the mounting ring groove (8) through threads, and the inner side wall of the mounting ring groove (8) is a smooth structure.

3. The film blower die gap adjustment mechanism of claim 2, wherein, The side of the supporting block (11) away from the supporting inclined surface is a vertical plane structure, the matching mounting hole (13) is arranged on the vertical plane, one end of the adjusting rod (15) away from the adjusting end (3) is provided with a matching mounting end (14), and the matching mounting end (14) is installed in the matching mounting hole (13).

4. The film-stretching-machine die-gap-adjustment mechanism of claim 3, wherein, The outer wall of the die head body (1) is provided with an adjusting matching hole (16), the adjusting rod (15) is installed in the adjusting matching hole (16) through thread connection, the bottom cover (4) is installed on the bottom surface of the die head body (1), the fixing counterbore (5) is arranged on the bottom cover (4), and the fixing screw (6) is matched and installed in the fixing counterbore (5).

5. The film-stretching-machine die-gap-adjustment mechanism of claim 4, wherein, The connecting rod mounting hole (18) is processed on the bottom surface of the die core (2) and located outside the mounting ring groove (8), the upper connecting rod (17) is installed in the connecting rod mounting hole (18) through thread connection, the lower end of the upper connecting rod (17) is provided with a lower supporting connecting rod (20), the upper part of the lower supporting connecting rod (20) is provided with an adjusting matching inner cavity (21), and the lower end of the upper connecting rod (17) is located in the adjusting matching inner cavity (21) of the lower supporting connecting rod (20).

6. The film-stretching-machine die-gap-adjustment mechanism of claim 5, wherein, The spring two (22) is arranged between the lower end of the upper connecting rod (17) and the bottom surface of the adjusting matching inner cavity (21), the spring one (19) is arranged outside the upper connecting rod (17) supported by the top surface of the lower supporting connecting rod (20) of the die core (2), and the spring one (19) and the spring two (22) are both selected from damping springs.

7. The film-stretching-machine die-gap-adjustment mechanism of claim 6, wherein, The upper connecting rod (17), the lower supporting connecting rod (20), the spring one (19) and the spring two (22) constitute an adjusting matching structure, which is uniformly arranged in three groups in the circumferential direction, and the bottom cover (4) and the die head main body (1) are provided with through holes (23) on the bottom surfaces correspondingly.

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