Pipe structure for press and press
By controlling the piping structure and air source of the pressing machine, efficient and uniform bonding of complex shoe shapes is achieved, solving the problems of high cost and low efficiency of existing equipment. Flexible airbag and rotatable cap design are adopted.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 刘东红
- Filing Date
- 2025-07-29
- Publication Date
- 2026-06-05
AI Technical Summary
Existing shoe-making equipment is unable to efficiently and evenly bond complex shoe shapes, and secondary pressing equipment is costly and has low production efficiency.
A piping structure for a pressing machine is adopted, which realizes primary and secondary pressing by setting the connection control between the first and second air sources and the air inlet channel. The gas flow is controlled by a two-position solenoid valve, and the air bladder pressure is increased without increasing the air bladder. It combines a flexible air bladder and a rotatable pressure cap design.
It achieves efficient and uniform bonding of complex shoe shapes, reduces equipment costs, and avoids the problem of low production efficiency caused by multiple pressing.
Smart Images
Figure CN224320310U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shoemaking equipment technology, specifically to a pipeline structure for a pressing machine and a pressing machine. Background Technology
[0002] The main function of a shoe-making laminating machine is to firmly, precisely, and aesthetically bond the sole (upper part) coated with adhesive (such as hot melt adhesive or PU adhesive) to the upper. The laminating machine applies controlled pressure, temperature, and time to fully activate, flow, penetrate, and ultimately cure the adhesive, forming a strong bond.
[0003] However, most current shoe manufacturing equipment uses a single-stage pressing method. While this method offers advantages such as high efficiency, simple equipment, and easy operation, it struggles to effectively bond complex shoe shapes. Furthermore, the low and uneven pressure during a single pressing process prevents the shoe from achieving a comprehensive, all-around bonding effect.
[0004] While a small number of shoe-making machines on the market possess a secondary pressing function—for example, those with two air chambers—the shoes need to be pressed once at one air chamber, then removed from that chamber and transferred to the other air chamber for secondary pressing. Therefore, these shoe-making machines generally suffer from problems such as high equipment costs, low production efficiency, and complex process setups. Utility Model Content
[0005] To solve at least one of the aforementioned problems, according to one aspect of the present invention, a piping structure for a pressing machine is provided.
[0006] The piping structure for the press includes an air intake channel connected to the air bladder of the press; a first sub-channel and a second sub-channel connected to the air intake channel; a first switch and a second switch respectively installed on the first sub-channel and the second sub-channel for controlling whether gas enters the air intake channel; and a third switch installed on the air intake channel for controlling whether the air intake channel exhausts gas.
[0007] Therefore, when using a pressing machine with this pipeline structure to press shoes, firstly, the first air source can be connected to the air inlet channel via the first switch to press the shoes once using the airbag; then, the second air source can be connected to the air inlet channel via the second switch to increase the pressure of the gas in the airbag, thus achieving secondary pressing of the shoes. Because this application provides a first sub-channel, a second sub-channel, and a first and second switch respectively located on the first and second sub-channels to control whether gas enters the air inlet channel, it is possible to achieve secondary pressing without using two airbags by setting two air sources and ensuring that the second air source can supply gas at a higher pressure than the first air source. This avoids both excessively high pressing machine costs and low production efficiency caused by repeated depressurization and shoe movement during multiple pressing processes.
[0008] In some embodiments, at least one of the first switch and the second switch is a two-position solenoid valve. Therefore, the connection between the first air source and the intake channel can be controlled by controlling the two working positions of the two-position solenoid valve; moreover, the two-position solenoid valve can be controlled by a control module, facilitating automated pressing.
[0009] In some embodiments, at least one of the first sub-channel and the second sub-channel is located at the end of the intake channel furthest from the airbag. This prevents the first and second switches, located in the first and second sub-channels, from affecting the exhaust effect of the third switch on the intake channel.
[0010] In some implementations, the third switch is a quick-release valve. This allows for rapid discharge of gas from the airbag even when neither the first nor the second air source is supplying gas into the intake channel, making operation convenient.
[0011] In some embodiments, a fourth switch is provided at the end of the first sub-channel located away from the first switch from the air intake channel, which prevents gas from the air intake channel from flowing out of the first sub-channel. Therefore, even if the second air source supplies gas into the air intake channel, stopping the first air source from supplying gas to the air intake channel can prevent gas from leaking out of the first sub-channel by the fourth switch, thereby saving energy while maintaining the air pressure in the air intake channel.
[0012] In some embodiments, the fourth switch is a one-way valve that allows gas to flow only from the first sub-channel to the intake channel. Thus, with a simple structure, it is possible to stop the first gas source from supplying gas to the intake channel while simultaneously supplying gas from the second gas source to the intake channel, and to prevent gas in the intake channel from leaking out from the first sub-channel.
[0013] According to another aspect of the present invention, a pressing machine is provided.
[0014] The press includes the aforementioned piping structure for the press.
[0015] Therefore, when using a pressing machine with this pipeline structure to press shoes, firstly, the first air source can be connected to the air inlet channel via the first switch to press the shoes once via the air bladder; then, the second air source can be connected to the air inlet channel via the second switch, ensuring that the second air source can be supplied with gas at a higher pressure than the first air source, thereby increasing the pressure of the gas in the air bladder and achieving secondary pressing of the shoes. This allows for secondary pressing without the need for two air bladders, which avoids both excessively high pressing machine costs and low production efficiency caused by the need for multiple depressurizations and shoe movements during multiple pressings.
[0016] In some embodiments, the pressing machine further includes an air bladder connected to an air inlet channel of the piping structure used in the pressing machine; the air bladder is a flexible air bladder. Thus, when pressing shoes using a pressing machine with this piping structure, firstly, a first air source can be connected to the air inlet channel via a first switch to perform a first pressing of the shoe using the air bladder; then, a second air source can be connected to the air inlet channel via a second switch, ensuring that the second air source can supply gas at a higher pressure than the first air source, thereby increasing the pressure of the gas in the air bladder and achieving a second pressing of the shoe.
[0017] In some embodiments, the pressing machine further includes a frame and a pressure cap rotatably mounted on the frame; an airbag is sealed to the pressure cap to form a first sealed space between the airbag and the pressure cap; an air intake channel is connected to the airbag through the pressure cap and communicates with the first sealed space, and the air intake channel is located on the side of the pressure cap opposite to the airbag. Thus, the pressure cap can drive the movement of the airbag, while avoiding the impact of the piping structure on the pressing effect of the airbag.
[0018] In some embodiments, the pressing machine further includes a base fixedly disposed relative to the frame; a pressure cap is configured to rotate relative to the frame until the airbag covers the base, thereby forming an accommodating space for accommodating shoes between the airbag and the base; the pressing machine further includes a connecting structure disposed on the base and the pressure cap, capable of detachably connecting the base to the pressure cap. Thus, shoes to be pressed can be placed on the base, and when the airbag covers the base, the pressure cap can be connected to the base via the connecting structure, ensuring the effective pressing of the shoes by the airbag. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the piping structure for a pressing machine according to one embodiment of the present invention;
[0020] Figure 2This is a schematic diagram of the structure of a pressing machine according to one embodiment of the present invention;
[0021] Figure 3 This is a partially enlarged structural schematic diagram of a pressing machine according to one embodiment of the present invention;
[0022] Figure 4 This is a schematic diagram of the structure of the pressure cap of the pressing machine according to one embodiment of the present invention;
[0023] Figure 5 This is a schematic diagram of the pressing machine according to one embodiment of the present invention, showing the pressing cover being closed onto the base.
[0024] Reference numerals: 21, airbag; 211, first receiving cavity; 22, frame; 23, pressure cap; 231, second receiving cavity; 24, base; 25, connecting structure; 251, buckle; 252, slot; 31, air intake channel; 32, first sub-channel; 33, second sub-channel; 34, first switch; 35, second switch; 36, third switch; 37, fourth switch; 40, shoe. Detailed Implementation
[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.
[0026] It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising" or "including" include not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. The terminology used herein is generally that commonly used by those skilled in the art; in case of any discrepancy with commonly used terminology, the terminology used herein shall prevail.
[0027] Furthermore, for ease of description, spatial relative terms such as “below,” “under,” “lower,” “above,” and “upper” may be used herein to describe the relationship between one element or component and another (or other) element or component as shown in the figure. In addition to the orientation shown in the figure, spatial relative terms are intended to include different orientations of the device during use or operation. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptors used herein can be interpreted accordingly.
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0029] Figure 1 The diagram schematically shows the piping structure for a pressing machine according to a first embodiment of the present invention.
[0030] like Figure 1 As shown, the piping structure for the press includes an air inlet channel 31, a first sub-channel 32, a second sub-channel 33, a first switch 34, a second switch 35, and a third switch 36. The air inlet channel 31 is connected to the air bladder 21 of the press. The first sub-channel 32 and the second sub-channel 33 are connected to the air inlet channel 31. The first switch 34 is located on the first sub-channel 32; the second switch 35 is located on the second sub-channel 33; the first switch 34 and the second switch 35 are used to control whether gas enters the air inlet channel 31. The third switch 36 is located on the air inlet channel 31 and can control whether the air inlet channel 31 exhausts gas.
[0031] When pressing the shoe 40 using a pressing machine with this pipeline structure, firstly, the first air source can be connected to the air inlet channel 31 via the first switch 34 to press the shoe 40 once via the airbag 21; then, the second air source can be connected to the air inlet channel 31 via the second switch 35 to ensure that the second air source can supply gas with a higher pressure than the first air source (at least one of the first and second air sources can be an air pump, air compressor, or other external air source; see the air inlet direction). Figure 1 By increasing the pressure of the gas in the airbag 21 (other than the arrow in the third switch 36), the shoe 40 can be pressed twice, thus avoiding both high cost of the pressing machine and low production efficiency caused by multiple depressurizations and movement of the shoe 40 due to multiple pressings.
[0032] In some embodiments, at least one of the first switch 34 and the second switch 35 is a two-position solenoid valve, such as a two-position two-way solenoid valve, a two-position three-way solenoid valve, etc., and the gas is controlled according to the specified flow rate by the two-position solenoid valve. Figure 1 The air flows into the intake channel 31 in the direction shown. Therefore, the connection between the first air source and the intake channel 31 can be controlled by controlling the two working positions of the two-position solenoid valve; moreover, the two-position solenoid valve can be controlled by the control module to facilitate automated pressing.
[0033] In some embodiments, such as Figure 1 As shown, at least one of the first sub-channel 32 and the second sub-channel 33 is located at the end of the intake channel 31 away from the airbag 21. This prevents the first switch 34 and the second switch 35 located on the first sub-channel 32 and the second sub-channel 33 from affecting the exhaust effect of the third switch 36 on the intake channel 31.
[0034] In some embodiments, continue to refer to Figure 1 As shown, the third switch 36 is a quick-exhaust valve. The first port of the quick-exhaust valve is connected to a section of the first sub-channel 32 and the second sub-channel 33 of the intake channel 31; the second port of the quick-exhaust valve is connected to a section of the airbag 21 of the intake channel 31; the third port of the quick-exhaust valve is used for exhaust. When at least one of the first and second air sources supplies air to the intake channel 31, the third port closes, and the gas supplied by the first and second air sources enters the airbag 21 through the intake channel 31; when both the first and second air sources stop supplying air to the intake channel 31, due to the unique structure of the quick-exhaust valve, the first port closes, and the second and third ports connect to quickly exhaust the gas from the airbag 21 (exhaust direction see...). Figure 1 (The arrow direction in the quick exhaust valve); moreover, since the quick exhaust valve can automatically exhaust air when both the first and second air sources stop supplying air to the air intake channel 31, it is easy to operate.
[0035] In some embodiments, continue to refer to Figure 1 As shown, a fourth switch 37 is provided at the end of the first sub-channel 32 located away from the first switch 34 from the intake channel 31, which can prevent gas from the intake channel 31 from flowing out of the first sub-channel 32. Therefore, even if the first gas source stops supplying gas to the intake channel 31 when the second gas source is supplying gas to the intake channel 31, the fourth switch 37 can prevent gas in the intake channel 31 from leaking out of the first sub-channel 32, thereby saving energy while maintaining the air pressure in the intake channel 31.
[0036] In some embodiments, the fourth switch 37 is a one-way valve that allows gas to flow only from the first sub-channel 32 to the intake channel 31, and the intake direction of the one-way valve is as follows: Figure 1 The arrow in the one-way valve points in the direction of the first gas source. Thus, with a simple structure, it is possible to stop the first gas source from supplying gas to the intake channel 31 while simultaneously supplying gas to the second gas source, and to prevent gas in the intake channel 31 from leaking out from the first sub-channel 32.
[0037] Figures 2 to 5 A pressing machine according to a first embodiment of the present invention is shown schematically.
[0038] The pressing machine includes the aforementioned piping structure for pressing. Therefore, when pressing the shoe 40 using the pressing machine with this piping structure, firstly, the first air source can be connected to the air inlet channel 31 via the first switch 34 to press the shoe 40 once via the air bladder 21; then, the second air source can be connected to the air inlet channel 31 via the second switch 35, ensuring that the second air source can supply gas with a higher pressure than the first air source, thereby increasing the pressure of the gas in the air bladder 21 and achieving a secondary pressing of the shoe 40. This allows for secondary pressing without the need for two air bladders 21, avoiding both excessively high pressing machine costs and low production efficiency caused by repeated depressurization and movement of the shoe 40 during multiple pressing processes.
[0039] In some embodiments, such as Figure 2 and Figure 3 As shown, the pressing machine also includes an air bladder 21 connected to the air inlet channel 31 of the piping structure used in the pressing machine. The air bladder 21 is a flexible air bladder, for example, it can be made of rubber. Thus, when pressing the shoe 40 using the pressing machine with this piping structure, firstly, the first air source can be connected to the air inlet channel 31 via the first switch 34 to press the shoe 40 once via the air bladder 21; then, the second air source can be connected to the air inlet channel 31 via the second switch 35, ensuring that the second air source can supply gas with a higher pressure than the first air source, thereby increasing the pressure of the gas in the air bladder 21 and achieving a secondary pressing of the shoe 40.
[0040] In some embodiments, continue to refer to Figure 2 and Figure 3 As shown, the pressing machine also includes a frame 22 and a pressure cap 23 rotatably mounted on the frame 22; an air bladder 21 is sealed to the pressure cap 23 to form a first sealed space between the air bladder 21 and the pressure cap 23; an air intake channel 31 is connected to the air bladder 21 through the pressure cap 23 and communicates with the first sealed space, and the air intake channel 31 is located on the side of the pressure cap 23 opposite to the air bladder 21. The rotatable connection can adopt a commonly used rotatable connection in the prior art, such as a pivot connection; this application does not limit the specific implementation of the rotatable setting. The sealed connection can adopt a commonly used sealed connection in the prior art, such as a sealing ring between the two in a fixed connection; this application does not limit the specific implementation of the sealed connection. The first sealed space is, for example... Figure 4As shown, a second receiving cavity 231 can be provided on the pressure cap 23 to form a first sealed space when the airbag 21 is connected to the pressure cap 23, through the space enclosed by the side wall of the second receiving cavity 231. In some embodiments, the airbag 21 can be placed in the second receiving cavity 231 to achieve structural compactness. When the pressure cap 23 rotates relative to the frame 22, it can both drive the airbag 21 to move and avoid the compression effect of the airbag 21 due to the arrangement of the pipeline structure.
[0041] In some embodiments, such as Figure 2 , Figure 3 and Figure 5 As shown, the pressing machine also includes a base 24 fixedly disposed relative to the frame 22; a pressure cap 23 is configured to rotate relative to the frame 22 until the airbag 21 covers the base 24, thereby forming an accommodating space between the airbag 21 and the base 24 for accommodating the shoe 40; the pressing machine also includes a connecting structure 25 disposed on the base 24 and the pressure cap 23, capable of detachably connecting the base 24 to the pressure cap 23. In some embodiments, a first accommodating cavity 211 can be provided on the airbag 21 so that when the airbag 21 covers the base 24, an accommodating space is formed between the airbag 21 and the base 24. When the shoe 40 to be pressed is placed on the base 24, and when the airbag 21 covers the base 24, the pressure cap 23 can be connected to the base 24 by the connecting structure 25 to ensure the pressing effect of the airbag 21 on the shoe 40.
[0042] As one embodiment of the connection structure 25, such as Figure 2 and Figure 3 As shown, the connecting structure 25 includes a buckle 251 on one of the pressure cap 23 and the base 24 and a slot 252 on the other.
[0043] The connecting structure 25 can also be implemented as a through hole provided on the cover 23 and a screw hole provided on the base 24, so that the cover 23 and the base 24 are connected by a screw passing through the through hole and the screw hole.
[0044] In this invention, the connection or installation is a fixed connection unless otherwise specified. A fixed connection can be implemented as a detachable or non-detachable connection commonly used in the prior art. A detachable connection can be implemented using existing technologies, such as threaded connections or keyed connections. A non-detachable connection can also be implemented using existing technologies, such as welding or adhesive bonding.
[0045] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.
Claims
1. A piping structure for a pressing machine, characterized in that, include: An air intake channel connected to the air bladder of the press; The first and second sub-channels are connected to the intake passage; A first switch and a second switch, respectively installed on the first sub-channel and the second sub-channel, are used to control whether gas enters the intake channel; And a third switch installed on the intake passage that controls whether the intake passage exhausts air.
2. The piping structure for a pressing machine according to claim 1, characterized in that, At least one of the first switch and the second switch is a two-position solenoid valve.
3. The piping structure for a pressing machine according to claim 2, characterized in that, At least one of the first sub-channel and the second sub-channel is disposed at the end of the air intake channel away from the airbag.
4. The piping structure for a pressing machine according to claim 3, characterized in that, The third switch is a quick-release valve.
5. The piping structure for a pressing machine according to any one of claims 1 to 4, characterized in that, A fourth switch is provided at the end of the first sub-channel that is away from the first switch from the air intake channel, which can prevent the gas in the air intake channel from flowing out of the first sub-channel.
6. The piping structure for a pressing machine according to claim 5, characterized in that, The fourth switch is a one-way valve that allows gas to flow only from the first sub-channel to the intake channel.
7. A pressing machine, characterized in that, Includes the piping structure for a pressing machine as described in any one of claims 1 to 6.
8. The pressing machine according to claim 7, characterized in that, It also includes an airbag connected to the air intake channel of the piping structure for the press, the airbag being a flexible airbag.
9. The pressing machine according to claim 8, characterized in that, It also includes a frame and a pressure cap that is rotatably mounted on the frame; The airbag is sealed to the gland to form a first sealed space between the airbag and the gland; The air intake channel is connected to the airbag through the pressure cap and communicates with the first sealed space. The air intake channel is located on the side of the pressure cap away from the airbag.
10. The pressing machine according to claim 9, characterized in that, It also includes a base that is fixed relative to the rack; The pressure cap is configured to rotate relative to the frame until the airbag covers the base, thereby forming an accommodating space between the airbag and the base for accommodating the shoe. It also includes a connection structure disposed on the base and the cover, which enables the base to be detachably connected to the cover.