A blowing mechanism for heating a press platen and a gluing device

Abstract

The utility model discloses a kind of blowing mechanism and gluing device of heating platen, it is related to gluing device technical field, wherein, the blowing mechanism of heating platen, it includes: valve seat, with the platen fixed installation, the gas passage that can penetrate the platen is set in the valve seat inside, the gas passage is provided with the plug of abutting seal in the remote end opening position;Valve stem, it is slidably arranged in the gas passage, the remote end of the valve stem is fixedly connected with the plug, when the valve stem slides, the plug can be driven away from the remote end opening of the gas passage;Driving assembly, with the valve stem fixed connection, for driving the valve stem in the gas passage sliding;The blowing mechanism and gluing device of this heating platen can avoid that glue liquid enters and blocks gas passage, guarantee the smooth injection of gas.

Description

Technical Field

[0001] This utility model relates to the field of adhesive application equipment technology, and more specifically, to an air blowing mechanism for a heated pressure plate. Furthermore, this utility model also relates to an adhesive application device including the aforementioned air blowing mechanism for a heated pressure plate. Background Technology

[0002] After the glue applicator has used up the glue in the bucket, the pressure plate needs to be raised until it is detached from the glue bucket. When the pressure plate is raised, a negative pressure will be formed in the inner cavity of the pressure plate and the glue bucket, making it difficult for the pressure plate to detach from the bucket.

[0003] In the existing technology, air is blown into the barrel manually using an air blower through a pressure plate. When the glue used by the glue applicator is hot melt glue, the working temperature of the glue applicator and the pressure plate is high, and the pressure plate and its surrounding parts can easily cause burns to personnel.

[0004] In existing technology, an air passage is set up inside the pressure plate, and a one-way valve is installed in the air passage to achieve one-way air injection into the glue bucket through the air passage. However, the glue is fluid, and when the pressure plate is working, the glue will enter the air passage, causing air passage blockage. Especially for hot melt glue, when it cools down, it will solidify in the air passage. The high-pressure gas cannot blow the solidified glue out of the air passage, so it cannot solve the problem of air passage blockage, causing air passage failure. At the same time, the high-temperature operating environment will cause the one-way valve to fail, allowing the air passage to be directly open, causing the glue to overflow through the air passage and affecting the glue application operation.

[0005] In conclusion, how to solve the problem of adhesive clogging the air passage is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] In view of this, the purpose of this utility model is to provide an air blowing mechanism for a heated pressure plate, wherein a plug is provided at the far end opening of the gas channel to seal the gas channel and prevent adhesive from entering and blocking the gas channel. Furthermore, the plug is driven away from the far end opening of the gas channel by force transmitted through the valve stem, so as to prevent adhesive from obstructing the conduction of the gas channel and ensure smooth gas injection.

[0007] Another objective of this invention is to provide a glue-applying device that includes the air-blowing mechanism of the aforementioned heated pressure plate, which has the same technical solution and can solve the same technical problem.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] An air blowing mechanism for heating a pressure plate, used to penetrate the pressure plate inside a glue barrel and inject gas into the glue barrel;

[0010] The air blowing mechanism for the heated pressure plate includes:

[0011] A valve seat is fixedly installed with the pressure plate. The valve seat has a gas passage that can penetrate the pressure plate. A plug that abuts and seals is provided at the far end opening of the gas passage.

[0012] A valve stem is slidably disposed within the gas passage, and the distal end of the valve stem is fixedly connected to the plug. When the valve stem slides, it can drive the plug away from the distal opening of the gas passage.

[0013] A drive assembly, fixedly connected to the valve stem, is used to drive the valve stem to slide within the gas passage.

[0014] Preferably, the gas passage is a through hole, the proximal end of the valve stem extends to the outside of the gas passage, and the proximal end of the valve stem is fixedly connected to the power part of the drive assembly;

[0015] Several sets of sealing rings are slidably disposed between the proximal peripheral wall of the valve stem and the inner wall of the gas passage.

[0016] The gas channel is equipped with a gas connector at its proximal end for connecting to a gas source.

[0017] Preferably, the drive assembly is fixedly connected to the proximal end of the valve seat;

[0018] A heat insulation component is provided between the drive assembly and the valve seat.

[0019] Preferably, the drive assembly is fixedly connected to the valve seat via a mounting base, and the mounting base and the valve seat are fixed together by bolts;

[0020] The heat insulation assembly includes a lower heat insulation plate and an upper heat insulation plate. The lower heat insulation plate is disposed between the abutting surfaces of the mounting base and the valve seat, and the upper heat insulation plate is disposed between the head of the bolt and the abutting surface of the mounting base.

[0021] Preferably, the drive assembly includes a cylinder, and the power unit of the cylinder is fixedly connected to the valve stem;

[0022] A speed control valve is provided at the air exchange port of the cylinder to control the movement speed of the power unit of the cylinder.

[0023] Preferably, the drive assembly further includes a position detection component for detecting the current position of the valve stem and / or the power unit of the drive assembly.

[0024] Preferably, the gas channel is provided with a flared opening at its distal end, and the plug is provided with a conical surface with the same taper as the flared opening;

[0025] When the plug blocks the distal opening of the gas passage, the conical surface of the plug abuts against the flared opening to seal it.

[0026] Preferably, the cross-sectional area of ​​the plug is larger than the area of ​​the distal opening of the gas passage, and the plug is fixedly connected to the distal end of the valve stem by a locking bolt.

[0027] Preferably, an extension rod is provided at the distal end of the valve seat, and the gas passage passes through the extension rod.

[0028] An adhesive applicator includes an adhesive bucket, a pressure plate, and an air blowing mechanism for heating the pressure plate as described in any one of the above-mentioned methods, wherein the pressure plate is slidably and sealed inside the adhesive bucket.

[0029] The air blowing mechanism for the heated pressure plate provided by this utility model has at least the following advantages compared with the prior art:

[0030] By installing a valve seat inside the pressure plate and utilizing the gas channel within the valve seat, an air path is constructed to inject air into the glue container. A plug is installed at the far end of the gas channel to seal the opening of the gas channel, which can prevent glue from entering the gas channel and thus prevent the gas channel from becoming blocked.

[0031] Furthermore, by transmitting force through the valve stem, the plug can be directly driven, which can transmit a large force, enabling the plug to overcome the resistance of the adhesive and move away from the opening at the far end of the gas channel, thus opening the gas channel and smoothly injecting air into the glue container.

[0032] The adhesive applicator provided by this utility model includes the air blowing mechanism of the heating pressure plate mentioned above, and has the same beneficial effects. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0034] Figure 1 A schematic diagram of the air blowing mechanism for the specific heating pressure plate provided by this utility model;

[0035] Figure 2 A cross-sectional view of the air blowing mechanism for the specific heating pressure plate provided by this utility model;

[0036] Figure 3 Provided by this utility model Figure 2 Enlarged view of point A in the middle;

[0037] Figure 4 Provided by this utility model Figure 2 Enlarged view of point B in the middle;

[0038] Figure 5 This is a schematic diagram of the air blowing mechanism and the assembly of the heating pressure plate provided by this utility model.

[0039] In the picture:

[0040] 1. Valve seat; 11. Extension rod; 12. Gas connector; 13. Gas passage;

[0041] 2. Valve stem; 21. Plug; 22. Locking bolt; 23. Sealing ring;

[0042] 3. Drive assembly; 31. Speed ​​control valve; 32. Position detection assembly;

[0043] 4. Mounting base; 41. Lower heat insulation plate; 42. Upper heat insulation plate;

[0044] 5. Pressing plate. Detailed Implementation

[0045] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0046] The core of this utility model is to provide an air blowing mechanism for a heated pressure plate. A plug is set at the far end opening of the gas channel to seal the gas channel and prevent adhesive from entering and blocking the gas channel. The plug is driven away from the far end opening of the gas channel by the valve rod to prevent adhesive from obstructing the conduction of the gas channel and to ensure smooth gas injection.

[0047] Another core aspect of this utility model is to provide a glue-applying device that includes the air-blowing mechanism of the aforementioned heated pressure plate, which has the same technical solution and can solve the same technical problem.

[0048] Please refer to Figure 1 and Figure 2 The air blowing mechanism of the heated pressure plate is used to penetrate the pressure plate 5 inside the glue barrel and inject gas into the glue barrel;

[0049] The air blowing mechanism for the heated pressure plate includes:

[0050] Valve seat 1 is fixedly installed with pressure plate 5. The valve seat 1 is provided with a gas passage 13 that can pass through pressure plate 5. A plug 21 for sealing is provided at the far end opening of gas passage 13.

[0051] The valve stem 2 is slidably disposed in the gas passage 13. The distal end of the valve stem 2 is fixedly connected to the plug 21. When the valve stem 2 slides, it can drive the plug 21 away from the distal opening of the gas passage 13.

[0052] The drive assembly 3 is fixedly connected to the valve stem 2 and is used to drive the valve stem 2 to slide within the gas passage 13.

[0053] like Figure 1 and Figure 2 As shown, a valve seat 1 is used to penetrate the surface of the pressure plate 5 through a through hole, and the far end opening of the gas channel 13 inside the valve seat 1 is directly connected to the cavity formed by the pressure plate 5 and the glue bucket. When the pressure plate 5 needs to be raised, gas is injected directly into the glue bucket through the gas channel 13 to avoid negative pressure in the cavity formed by the glue bucket and the pressure plate 5, thereby facilitating the separation of the pressure plate 5 from the glue bucket.

[0054] A plug 21 is provided at the far end opening of the gas channel 13 to block the far end opening of the gas channel 13, thereby preventing the adhesive from entering the gas channel 13 and solving the problem of adhesive clogging the gas channel 13.

[0055] Meanwhile, a valve stem 2 is installed in the gas channel 13, and the valve stem 2 can be driven by the drive component 3 to slide in the gas channel 13. Through the force transmitted by the valve stem 2, the plug 21 is driven away from the far end opening of the gas channel 13, so that the gas channel 13 is open. Since the valve stem 2 is a rigid rod, it can transmit a large force. Even if there is solidified glue on the outside of the plug 21, by increasing the driving force of the drive component 3, the plug 21 can still be driven away from the far end opening of the gas channel 13, so that the gas channel 13 is open and the gas injection in the glue can be completed.

[0056] It is worth noting that the drive component 3 is preferably a cylinder, but it can also be a hydraulic cylinder, a crank connecting mechanism, etc., which can achieve the same function.

[0057] In some embodiments, the gas passage 13 is a through hole, the proximal end of the valve stem 2 extends to the outside of the gas passage 13, and the proximal end of the valve stem 2 is fixedly connected to the power part of the drive assembly 3.

[0058] Several sets of sealing rings 23 are slidably disposed between the proximal peripheral wall of the valve stem 2 and the inner wall of the gas passage 13;

[0059] The gas passage 13 is provided with a gas connector 12 at its proximal end for connecting to a gas source.

[0060] like Figure 2 and Figure 4 As shown, the gas passage 13 is a through hole, which allows the proximal end of the valve stem 2 to pass through the gas passage 13 and connect with the power part of the drive assembly 3 to obtain the driving force of the drive assembly 3.

[0061] Meanwhile, the structural design of the sealing ring 23 is adopted to slide and seal the proximal end of the valve stem 2 and the proximal end of the gas channel 13, so as to prevent the hot gas in the glue bucket from overflowing and directly acting on the drive component 3, which would affect the service life of the drive component 3; moreover, the simultaneous use of several sets of sealing rings 23 can increase the guiding degree of the valve stem 2 movement and reduce the contact friction between the circumferential surface of the valve stem 2 and the inner wall of the gas channel 13.

[0062] An air connector 12 is installed at the near end of the gas channel 13 to connect to the gas source. Air is injected into the glue container through the air connector 12 and the gas channel 13. The air connector 12 is located at the near end of the gas channel 13 to reduce the impact of the high temperature inside the glue container on the service life of the air connector 12. At the same time, the air connector 12 is preferably made of stainless steel to further increase its service life.

[0063] In some embodiments, the drive assembly 3 is fixedly connected to the proximal end of the valve seat 1;

[0064] A heat insulation component is provided between the drive assembly 3 and the valve seat 1.

[0065] like Figure 1 and Figure 2 As shown, the drive assembly 3 is located near the valve seat 1 to reduce the impact of the high temperature of the glue barrel and pressure plate 5 on the drive assembly 3. At the same time, a heat insulation component is set between the drive assembly 3 and the valve seat 1 to further reduce the heat transfer from the valve seat 1 to the drive assembly 3 and further improve the service life of the drive assembly 3.

[0066] In some embodiments, the drive assembly 3 is fixedly connected to the valve seat 1 via the mounting base 4, and the mounting base 4 and the valve seat 1 are fixed together by bolts.

[0067] The heat insulation assembly includes a lower heat insulation plate 41 and an upper heat insulation plate 42. The lower heat insulation plate 41 is disposed between the abutting surfaces of the mounting base 4 and the valve seat 1, and the upper heat insulation plate 42 is disposed between the head of the bolt and the abutting surface of the mounting base 4.

[0068] like Figure 2 and Figure 4 As shown, a lower heat insulation plate 41 is provided between the abutting surfaces of the mounting base 4 and the valve seat 1 to reduce the heat transferred from the valve seat 1 to the mounting base 4. An upper heat insulation plate 42 is provided between the bolt head and the abutting surface of the mounting base 4 to reduce the heat transferred from the valve seat 1 to the mounting base 4 through the bolt, further reducing the heat transferred from the valve seat 1 to the drive assembly 3 through the mounting base 4, and reducing the impact of the high temperature of the pressure plate 5 on the drive assembly 3.

[0069] The insulation board is made of a material with low thermal conductivity and high mechanical strength.

[0070] In some embodiments, the drive assembly 3 includes a cylinder, and the power unit of the cylinder is fixedly connected to the valve stem 2;

[0071] A speed control valve 31 is installed at the air exchange port of the cylinder to control the movement speed of the cylinder's power unit.

[0072] like Figure 1 and Figure 2 As shown, the drive assembly 3 is preferably a cylinder, and a speed control valve 31 is provided at the air inlet and exhaust port of the cylinder. By controlling the air inlet and exhaust speed, the operating speed of the cylinder is controlled, thereby controlling the speed of the valve stem 2 and the plug 21.

[0073] In some embodiments, the drive assembly 3 further includes a position detection assembly 32 for detecting the current position of the valve stem 2 and / or the power unit of the drive assembly 3.

[0074] like Figure 1 and Figure 2 As shown, a position detection component 32 is provided in the drive assembly 3 to detect the position of any one of the drive assembly 3 power unit, valve stem 2 and plug 21, and to determine the current conduction state of the gas passage 13. The position detection component 32 is preferably a magnetic switch to detect the piston position in the cylinder.

[0075] In some embodiments, the gas passage 13 is provided with a flared opening at its distal end, and the plug 21 is provided with a conical surface with the same taper as the flared opening;

[0076] When the plug 21 blocks the far end opening of the gas passage 13, the conical surface of the plug 21 abuts against the flared opening to seal.

[0077] like Figure 2 and Figure 3 As shown, the design of the flared mouth and the conical surface of the plug 21 effectively improves the sealing performance of the plug 21 to the far end opening of the gas channel 13, preventing adhesive from entering the gas channel 13.

[0078] In some embodiments, the cross-sectional area of ​​the plug 21 is larger than the area of ​​the distal opening of the gas passage 13, and the plug 21 is fixedly connected to the distal end of the valve stem 2 by a locking bolt 22.

[0079] like Figure 3 As shown, a threaded hole is provided at the far end of the valve stem 2, and the plug 21 is fixedly connected to the valve stem 2 by the locking bolt 22, which facilitates the assembly of the valve stem 2 and the valve seat 1.

[0080] In some embodiments, an extension rod 11 is provided at the distal end of the valve seat 1, and a gas passage 13 passes through the extension rod 11.

[0081] like Figure 1 and Figure 5 As shown, by adding an extension rod 11, the valve seat 1 and its internal gas passage 13 can effectively penetrate the pressure plate 5, thereby enabling the far end opening of the gas passage 13 to communicate with the cavity formed by the pressure plate 5 and the rubber barrel.

[0082] Meanwhile, the addition of the extension rod 11 can increase the distance between the drive assembly 3, the air connector 12 and the pressure plate 5, and reduce the impact of the high temperature of the pressure plate 5 on the drive assembly 3 and the air connector 12.

[0083] In addition to the air blowing mechanism of the heating pressure plate disclosed in the above embodiments, the present invention also provides a glue applicator, including a glue bucket, a pressure plate 5 and the air blowing mechanism of the heating pressure plate of any one of the above, wherein the pressure plate 5 is slidably and sealed inside the glue bucket.

[0084] The structure of the other parts of the adhesive application device is described in reference to existing technologies and will not be repeated here.

[0085] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0086] The blowing mechanism and adhesive coating device for the heated pressure plate provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A blowing mechanism for a heated pressure plate, used to penetrate the pressure plate (5) inside a glue container and inject gas into the glue container, characterized in that, include: The valve seat (1) is fixedly installed with the pressure plate (5). The valve seat (1) has a gas passage (13) that can penetrate the pressure plate (5). The far end opening of the gas passage (13) is provided with a sealing plug (21). The valve stem (2) is slidably disposed in the gas passage (13). The distal end of the valve stem (2) is fixedly connected to the plug (21). When the valve stem (2) slides, it can drive the plug (21) away from the distal opening of the gas passage (13). The drive assembly (3) is fixedly connected to the valve stem (2) and is used to drive the valve stem (2) to slide within the gas passage (13).

2. The air blowing mechanism for the heated pressure plate according to claim 1, characterized in that, The gas passage (13) is a through hole, the proximal end of the valve stem (2) extends to the outside of the gas passage (13), and the proximal end of the valve stem (2) is fixedly connected to the power part of the drive assembly (3); A number of sealing rings (23) are slidably disposed between the proximal peripheral wall of the valve stem (2) and the inner wall of the gas channel (13). The gas channel (13) is provided with a gas connector (12) at its proximal end for connecting to a gas source.

3. The air blowing mechanism for the heated pressure plate according to claim 1, characterized in that, The drive assembly (3) is fixedly connected to the proximal end of the valve seat (1); A heat insulation component is provided between the drive assembly (3) and the valve seat (1).

4. The air blowing mechanism for the heated pressure plate according to claim 3, characterized in that, The drive assembly (3) is fixedly connected to the valve seat (1) via a mounting base (4), and the mounting base (4) and the valve seat (1) are fixed together by bolts. The heat insulation assembly includes a lower heat insulation plate (41) and an upper heat insulation plate (42). The lower heat insulation plate (41) is disposed between the abutting surfaces of the mounting base (4) and the valve seat (1), and the upper heat insulation plate (42) is disposed between the head of the bolt and the abutting surface of the mounting base (4).

5. The air blowing mechanism for the heated pressure plate according to claim 1, characterized in that, The drive assembly (3) includes a cylinder, and the power unit of the cylinder is fixedly connected to the valve stem (2); A speed control valve (31) is provided at the air exchange port of the cylinder to control the movement speed of the power unit of the cylinder.

6. The air blowing mechanism for the heated pressure plate according to claim 1, characterized in that, The drive assembly (3) further includes a position detection assembly (32) for detecting the current position of the valve stem (2) and / or the power unit of the drive assembly (3).

7. The air blowing mechanism for the heated pressure plate according to claim 1, characterized in that, The gas passage (13) is provided with a flared opening at its far end, and the plug (21) is provided with a conical surface with the same taper as the flared opening; When the plug (21) blocks the distal opening of the gas passage (13), the conical surface of the plug (21) abuts against the flared opening to seal.

8. The air blowing mechanism for the heated pressure plate according to claim 1, characterized in that, The cross-sectional area of ​​the plug (21) is larger than the area of ​​the far end opening of the gas passage (13), and the plug (21) is fixedly connected to the far end of the valve stem (2) by a locking bolt (22).

9. The air blowing mechanism for the heated pressure plate according to any one of claims 1-8, characterized in that, An extension rod (11) is provided at the far end of the valve seat (1), and the gas passage (13) passes through the extension rod (11).

10. A glue-applying device, characterized in that, The device includes a glue bucket, a pressure plate (5), and an air blowing mechanism for the heated pressure plate as described in any one of claims 1-9, wherein the pressure plate (5) is slidably and sealed inside the glue bucket.

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