Leakage-proof and wear-reducing structure of the glue coating mechanism of the edge banding machine

Abstract

The present invention discloses a leak-proof and wear-reducing structure for the gluing mechanism of an edge banding machine, comprising a sol box, a support frame, an upper support seat, a lower support seat, an active gluing shaft and a passive gluing shaft; the support frame is provided with a support seat sleeve and a guide sleeve, the support seat sleeve is provided with a first bearing and a first gasket; the upper support seat is provided with two first shaft holes, the first shaft holes are provided with a first axial sealing ring, a first end face sealing ring and a second bearing; the lower support seat is provided with a second shaft hole, the second shaft hole is provided with a second axial sealing ring, a second end face sealing ring and a third bearing. The use of axial and end-to-end sealing structures can effectively solve the problem that the active gluing shaft and the passive gluing shaft are prone to hot melt glue infiltrating into the bearings, ensuring that the hot melt glue will not infiltrate into the bearings and combine with them, thereby reducing the loss between the active gluing shaft, the passive gluing shaft and the bearings, increasing their service life and reducing maintenance costs.

Description

Technical Field

[0001] The invention relates to the technology of woodworking machinery field, in particular to a leakage-proof and wear-reducing structure of a gluing mechanism of an edge banding machine. Background Art

[0002] In the prior art, edge banding machines use hot melt glue coating mechanisms for edge banding. Since the glue coating mechanism works in a high temperature environment for a long time, the glue coating shaft rotates continuously. After running for a period of time, the glue coating shaft and the bearing will suffer from aggravated wear due to reduced lubrication, resulting in poor sealing and easy leakage of hot melt glue. After the hot melt glue penetrates into the bearing, the friction force is further increased. The increase in friction force will cause the current of the motor to increase, resulting in obvious heating. After shutdown, the hot melt glue that has penetrated into the bearing will cool down and combine with the bearing. When the hot melt glue coating mechanism is started again, the cooled hot melt glue will cause "locking".

[0003] Secondly, the leakage of hot melt adhesive will aggravate the wear between the glue-coated shaft and the bearing contact surface and cause biting, which will shorten the service life of the glue-coated shaft and increase the maintenance cost.

[0004] Therefore, it is necessary to further improve the existing hot melt adhesive coating mechanism to solve the above problems. Summary of the invention

[0005] In view of this, the present invention aims at the deficiencies in the prior art, and its main purpose is to provide a leakage-proof and wear-reducing structure for the gluing mechanism of an edge banding machine, which can effectively solve the problems of increased wear of the existing gluing mechanism due to leakage of hot melt adhesive, resulting in short service life of the motor, bearings and gluing shaft, high maintenance cost, and the like.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A leak-proof and wear-reducing structure for a glue coating mechanism of an edge banding machine comprises a glue sol box, a support frame, an upper support seat, a lower support seat, an active glue coating shaft and a passive glue coating shaft;

[0008] The support frame is installed on the sol box, and the support frame is provided with a support seat sleeve and a guide sleeve, and the support seat sleeve is provided with a first bearing and a first gasket;

[0009] The upper support seat is installed on the support frame, and the upper support seat is provided with two first axial holes, and the first axial holes are provided with a first axial sealing ring, a first end face sealing ring and a second bearing;

[0010] The lower support seat is installed at the bottom of the sol box body, and the lower support seat is provided with a second axial hole, and the second axial hole is provided with a second axial sealing ring, a second end face sealing ring and a third bearing;

[0011] One end of the active glue coating shaft is mounted on one of the second bearings, and the other end is mounted on the third bearing; the active glue coating shaft is provided with an active glue coating roller and a spiral groove for lifting hot melt glue;

[0012] One end of the passive glue-spreading shaft is installed on a first bearing, and the other end is installed on another second bearing. The passive glue-spreading shaft is provided with a passive glue-spreading roller.

[0013] As a preferred solution: the support sleeve is provided with a third axial hole, and the third axial hole is a blind hole structure; the first bearing is installed in the third axial hole.

[0014] As a preferred solution: the top surface of the support sleeve is provided with a first installation recess, the first gasket is arranged in the first installation recess, and the top surface of the first gasket is higher than the top surface of the support sleeve.

[0015] As a preferred solution: the sides of the support seat sleeve and the guide sleeve are both provided with mounting convex strips, the support frame is provided with mounting recesses, and the support seat sleeve and the guide sleeve are mounted by fitting the mounting convex strips with the mounting recesses.

[0016] As a preferred solution: the inner side surfaces of the first shaft hole and the second shaft hole are provided with a first accommodating recess, and the bottom or the top is provided with a first accommodating notch;

[0017] The first axial sealing ring and the second axial sealing ring are installed in the corresponding first accommodating recesses, and the first end face sealing ring and the second end face sealing ring are installed in the corresponding first accommodating notches.

[0018] As a preferred solution: the tops of the active gluing shaft and the passive gluing shaft are both provided with transmission gears, and the two transmission gears are meshed with each other.

[0019] As a preferred solution: a driving wheel for connecting to the power end is arranged at the bottom of the active glue-coating shaft.

[0020] As a preferred solution: the support frame is rotatably mounted with a scraper assembly, the active glue coating roller and the passive glue coating roller are located on the side of the scraper assembly, and rotating the scraper assembly can selectively adjust the distance between the scraper assembly and the active glue coating roller and the passive glue coating roller.

[0021] As a preferred solution: the support frame is provided with a reflux groove for the hot melt adhesive to flow back to the sol box.

[0022] As a preferred solution: the sol box is provided with a guide channel, the guide sleeve is located above the guide channel; the spiral groove is located in the guide channel and the guide sleeve.

[0023] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that:

[0024] By using the first axial sealing ring and the first end face sealing ring arranged in the first shaft hole and the second axial sealing ring and the second end face sealing ring arranged in the second shaft hole, an axial and end sealing structure is adopted, which can effectively solve the problem that the active glue-coated shaft and the passive glue-coated shaft are prone to hot melt adhesive infiltration into the bearing, and ensure that the hot melt adhesive will not infiltrate into the bearing and combine with it, thereby reducing the loss between the active glue-coated shaft, the passive glue-coated shaft and the bearing, prolonging their service life and reducing maintenance costs;

[0025] Secondly, one end of the passive glue-coated shaft is installed on the support seat sleeve, and the first gasket of the support seat sleeve can play a supporting and sealing role. The passive glue-coated shaft uses its own gravity to make the end face of the shaft completely fit on the first gasket. The passive glue-coated shaft is always in contact with the first gasket during the rotation process, which effectively prevents hot melt adhesive from penetrating into the bearing and can effectively reduce its friction.

[0026] In addition, the support seat sleeve adopts a blind hole structure, which effectively prevents the hot melt adhesive from infiltrating into the bearing when it flows back to the sol box, further improving its anti-leakage effect.

[0027] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a three-dimensional structural schematic diagram of a gluing mechanism of a preferred embodiment of the present invention;

[0029] Figure 2 It is an exploded view of the gluing mechanism of a preferred embodiment of the present invention;

[0030] Figure 3 is a cross-sectional view of a gluing mechanism according to a preferred embodiment of the present invention;

[0031] Figure 4 yes Figure 3 A partial enlarged view of location I of the middle glue coating mechanism;

[0032] Figure 5 yes Figure 3 A partial enlarged view of location II of the middle glue coating mechanism;

[0033] Figure 6 yes Figure 3 A partial enlarged view of location III of the middle glue coating mechanism;

[0034] Figure 7 It is a three-dimensional structural schematic diagram of a support frame of a preferred embodiment of the present invention;

[0035] Figure 8 is an exploded view of a support frame of a preferred embodiment of the present invention;

[0036] Fig. 9 is a cross-sectional view of a support seat sleeve of a preferred embodiment of the present invention;

[0037] Fig.10 It is a three-dimensional structural schematic diagram of an upper support seat of a preferred embodiment of the present invention;

[0038] Fig.11 is a cross-sectional view of an upper support seat of a preferred embodiment of the present invention;

[0039] Fig.12 yes Fig.11 Exploded view of the middle and upper support seat;

[0040] Fig.13 It is a three-dimensional structural schematic diagram of the lower support seat of a preferred embodiment of the present invention;

[0041] Fig.14 is an exploded view of a lower support seat of a preferred embodiment of the present invention;

[0042] Fig.15 is a cross-sectional view of a lower support seat of a preferred embodiment of the present invention;

[0043] Fig.16 It is a schematic diagram of the working state of a preferred embodiment of the present invention.

[0044] Description of the accompanying drawings:

[0045] 10. Sol box 11. Diversion channel

[0046] 20. Support frame 21. Support seat cover

[0047] 211. first bearing 212. first gasket

[0048] 213, third axial hole 214, first installation recess

[0049] 215. Install the convex strip 22 and the guide sleeve

[0050] 23. Installation recess 24. Glue scraping assembly

[0051] 25. Reflux groove 30. Upper support seat

[0052] 31. First axial hole 311. First accommodating recess

[0053] 32. First axial sealing ring 33. First end face sealing ring

[0054] 34. Second bearing 40. Lower support seat

[0055] 41. Second shaft hole 42. Second axial sealing ring

[0056] 43. Second end face sealing ring 44. Third bearing

[0057] 50. Active glue coating shaft 51. Active glue coating roller

[0058] 52. Spiral groove 53. Transmission gear

[0059] 54, driving wheel 60, passive rubberized shaft

[0060] 61. Passive glue roller. DETAILED DESCRIPTION

[0061] Please refer to Figures 1 to 16 As shown, it shows the specific structure of the preferred embodiment of the present invention, which is a leak-proof and wear-reducing structure of the gluing mechanism of the edge banding machine, including a sol box 10, a support frame 20, an upper support seat 30, a lower support seat 40, an active gluing shaft 50 and a passive gluing shaft 60.

[0062] (See Figure 1-Figure 3 , Figure 7-Figure 9 The support frame 20 is installed on the sol box 10, and the support frame 20 is provided with a support seat sleeve 21 and a guide sleeve 22. The support seat sleeve 21 is provided with a first bearing 211 and a first gasket 212. In the embodiment of the present application, the support seat sleeve 21 is provided with a third shaft hole 213, and the third shaft hole 213 is a blind hole structure; the first bearing 211 is installed in the third shaft hole 213. The third shaft hole adopts a blind hole structure, which can prevent the hot melt adhesive from flowing back to the sol box 10 and infiltrating into the first bearing 211, thereby improving its anti-leakage effect.

[0063] The top surface of the support seat sleeve 21 is provided with a first installation recess 214, and the first gasket 212 is provided in the first installation recess 214. The top surface of the first gasket 212 is higher than the top surface of the position where the first installation recess 214 is located. The material of the first gasket 212 is preferably PTFE material, which has the characteristics of low friction, high temperature resistance, acid and alkali resistance, and can maintain a good sealing effect under long-term use, which can improve the operating reliability of the glue coating mechanism and reduce the risk of hot melt adhesive penetration. The sides of the support seat sleeve 21 and the guide sleeve 22 are both provided with installation convex strips 215, and the support frame 20 is provided with an installation recess 23. The support seat sleeve 21 and the guide sleeve 22 are installed by fitting the installation convex strips 215 with the installation recess 23; the installation recess 23 is provided to make the installation of the support seat sleeve 21 and the guide sleeve 22 simpler, and facilitate subsequent repair and maintenance.

[0064] (See Figure 1-Figure 3 , Figure 10-12As shown in the figure, the upper support seat 30 is installed on the support frame 20, and the upper support seat 30 is provided with two first axial holes 31. The first axial hole 31 is provided with a first axial sealing ring 32, a first end face sealing ring 33 and a second bearing 34; the lower support seat 40 is installed at the bottom of the sol box 10, and the lower support seat 40 is provided with a second axial hole 41, and the second axial hole 41 is provided with a second axial sealing ring 42, a second end face sealing ring 43 and a third bearing 44. In the embodiment of the present application, the inner side surfaces of the first axial hole 31 and the second axial hole 41 are provided with a first accommodating recess 311, and the bottom or top is provided with a first accommodating notch 312; the first axial sealing ring 32 and the second axial sealing ring 42 are installed in the corresponding first accommodating recess 311, and the first end face sealing ring 33 and the second end face sealing ring 43 are installed in the corresponding first accommodating notch 312.

[0065] As described above, one end of the active glue-coating shaft 50 is mounted on one of the second bearings 34, and the other end is mounted on the third bearing 44; wherein, the side surface of one end of the active glue-coating shaft 50 abuts against the first axial seal ring 32, and the first end face seal ring 33 abuts against the active glue-coating shaft 50; after the other end of the active glue-coating shaft 50 is mounted on one of the third bearings 44, the side surface of the other end of the active glue-coating shaft 50 abuts against the second axial seal ring 42, and the other end of the active glue-coating shaft 50 abuts against the second end face seal ring 43. The active glue-coating shaft 50 is provided with an active glue-coating roller 51 and a spiral groove 52 for lifting hot melt glue. When the active glue-coating shaft 50 rotates, the hot melt glue can be lifted into the active glue-coating roller 51.

[0066] One end of the passive gluing shaft 60 is installed with the first bearing 211, and one end of the passive gluing shaft 60 is against the above-mentioned first gasket 212. Usually, the top surface of the above-mentioned first gasket 212 is 0.05-0.1mm higher than the top surface of the support seat sleeve 21, so that the passive gluing shaft 60 can effectively abut against the first gasket 212; the passive gluing shaft 60 uses its own gravity to make the passive gluing shaft 60 always abut against the surface of the first gasket 212 during the rotation of the passive gluing shaft 60, thereby preventing the hot melt adhesive from penetrating into the first bearing 211. The passive gluing shaft 60 is provided with a passive gluing roller 61. The passive gluing roller 61 is used to cooperate with the active gluing roller 51 to perform the gluing operation, which can ensure that the glue is evenly applied. The other end of the passive gluing shaft 60 is installed on another second bearing 34, and the other end side of the passive gluing shaft abuts against the first axial sealing ring 32, and the first end face sealing ring 33 abuts against the passive gluing shaft 60.

[0067] (See Figure 4-Figure 6Specifically, the first accommodating recess 311 is arranged at the lower middle of the first shaft hole 31, and the first accommodating notch 312 is arranged at the bottom of the first shaft hole 31; the second bearing 34 is installed in the first shaft hole 31, and is located above the first accommodating recess 311 of the first shaft hole 31. The first accommodating recess 311 is arranged at the upper middle of the second shaft hole 41, and the first accommodating notch 312 is arranged at the top of the second shaft hole 41; the third bearing 44 is installed in the second shaft hole 41, and is located below the first accommodating recess 311 of the second shaft hole 41. In this way, one end of the active glue-coating shaft 50 is installed on one of the second bearings 34, and the other end is installed on the third bearing 44. After the other end of the passive glue-coating shaft 60 is installed on the second bearing 34, the first axial sealing ring 32 and the second axial sealing ring 42 can prevent the hot melt adhesive from entering the bearing. Moreover, after the active glue-coating shaft 50 and the passive glue-coating shaft 60 are against the first corresponding first end face sealing ring 33 and the second end face sealing ring 43, the elastic force of the rubber can be used to solve the problem of poor end face sealing. Therefore, the use of the first axial sealing ring 32, the second axial sealing ring 42, the first end face sealing ring 33 and the second end face sealing ring 43 can effectively solve the problem that the traditional glue-coating mechanism has poor sealing, causing the hot melt adhesive to penetrate into the bearing, thereby increasing friction, causing serious wear of the glue-coating shaft and overheating of the motor.

[0068] Preferably, the first axial sealing ring 32, the first end face sealing ring 33, the second axial sealing ring 42 and the second end face sealing ring 43 are made of high temperature resistant fluororubber material; and after the first axial sealing ring 32 and the second axial sealing ring 42 are installed in the corresponding first accommodating recess 311, the first axial sealing ring 32 and the second axial sealing ring 42 are both protruded by 0.2 to 0.3 mm relative to the corresponding first accommodating recess 311 to ensure that the active glue coating shaft 50 and the passive glue coating shaft 60 can contact the first axial sealing ring 32 and the second axial sealing ring 42.

[0069] The top of the active gluing shaft 50 and the passive gluing shaft 60 are both provided with a transmission gear 53, and the two transmission gears 53 mesh with each other. The bottom of the active gluing shaft 50 is provided with a driving wheel 54 for connecting to the power end, and the driving wheel can be a sprocket, a pulley or a gear. The output end of the motor is connected to the driving wheel 54, and the motor is started to drive the active gluing shaft 50 to rotate; the transmission gear 53 can be used to make the active gluing shaft 50 rotate and the passive gluing shaft 60 rotate at the same time.

[0070] (See Figure 2The support frame 20 is rotatably mounted with a scraper assembly 24, and the active glue roller 51 and the passive glue roller 61 are located beside the scraper assembly 24. The distance between the scraper assembly 24 and the active glue roller 51 and the passive glue roller 61 can be selectively adjusted by rotating the scraper assembly 24, so that the thickness of the hot melt adhesive lifted to the active glue roller 51 and the passive glue roller 61 can be adjusted, which is convenient for adjusting the thickness of the hot melt adhesive of the active glue roller 51 and the passive glue roller 61. The support frame 20 is provided with a reflux groove 25 for hot melt adhesive to flow back to the sol box 10. After the scraper assembly scrapes away the active glue roller 51 and the passive glue roller 61, the hot melt adhesive can flow back to the sol box 10 through the reflux groove 25.

[0071] (See Figure 1-Figure 3 The sol box 10 is provided with a flow guide channel 11, the flow guide sleeve 22 is located above the flow guide channel 11, and the spiral groove 52 is located in the flow guide channel 11 and the flow guide sleeve 22; the flow guide channel 11 can prevent the hot melt adhesive from falling due to gravity during the lifting process and cannot be smoothly lifted to the active glue coating roller 51, thereby ensuring the reliability of the hot melt adhesive lifting. A heating tube and a heating plate (not shown in the figure) can also be provided at the bottom of the sol box 10, and the heating tube and the heating plate are used to melt the glue particles to ensure that the sol temperature can reach the required working temperature.

[0072] The working principle of the present invention is roughly described as follows: (See Fig.16 As shown in the figure, the motor is started to drive the driving wheel 54, which in turn drives the active gluing shaft 50 to rotate; when the active gluing shaft 50 rotates, the passive gluing shaft 60 rotates synchronously with the active gluing shaft 50; at this time, the glue in the sol box 10 is lifted upward along the spiral groove 52 and enters the active gluing roller 51 to carry out the corresponding gluing operation.

[0073] The design focus of the present invention is that: by using the first axial sealing ring and the first end face sealing ring arranged in the first shaft hole and the second axial sealing ring and the second end face sealing ring arranged in the second shaft hole, an axial and end sealing structure is adopted, which can effectively solve the problem that the active glue-coated shaft and the passive glue-coated shaft are prone to hot melt adhesive infiltration into the bearing, and ensure that the hot melt adhesive will not infiltrate into the bearing and combine with it, thereby reducing the loss between the active glue-coated shaft, the passive glue-coated shaft and the bearing, prolonging their service life and reducing maintenance costs;

[0074] Secondly, one end of the passive glue-coated shaft is installed on the support seat sleeve, and the first gasket of the support seat sleeve can play a supporting and sealing role. The passive glue-coated shaft uses its own gravity to make the end face of the shaft completely fit on the first gasket. The passive glue-coated shaft is always in contact with the first gasket during the rotation process, which effectively prevents hot melt adhesive from penetrating into the bearing and can effectively reduce its friction.

[0075] In addition, the support seat sleeve adopts a blind hole structure, which effectively prevents the hot melt adhesive from infiltrating into the bearing when it flows back to the sol box, further improving its anti-leakage effect.

[0076] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "up", "down", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0077] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A leak-proof and wear-reducing structure for a glue coating mechanism of an edge banding machine, characterized in that: The invention comprises a sol box (10), a support frame (20), an upper support seat (30), a lower support seat (40), an active glue coating shaft (50) and a passive glue coating shaft (60); wherein: The support frame (20) is installed on the sol box (10), and the support frame (20) is provided with a support seat sleeve (21) and a guide sleeve (22), and the support seat sleeve (21) is provided with a first bearing (211) and a first gasket (212); the support seat sleeve (21) is provided with a third shaft hole (213), and the third shaft hole (213) is a blind hole structure; the first bearing (211) is installed in the third shaft hole (213); the top surface of the support seat sleeve (21) is provided with a first A mounting recess (214), wherein the first gasket (212) is arranged in the first mounting recess (214), and the top surface of the first gasket (212) is higher than the top surface of the support seat sleeve (21); the side surfaces of the support seat sleeve (21) and the guide sleeve (22) are both provided with mounting convex strips (215), and the support frame (20) is provided with a mounting recess (23), and the support seat sleeve (21) and the guide sleeve (22) are adapted to be mounted in the mounting recess (23) via the mounting convex strips (215); The upper support seat (30) is mounted on the support frame (20), and the upper support seat (30) is provided with two first axial holes (31), and the first axial holes (31) are provided with a first axial sealing ring (32), a first end face sealing ring (33) and a second bearing (34); The lower support seat (40) is installed at the bottom of the sol box (10), and the lower support seat (40) is provided with a second axial hole (41), and the second axial hole (41) is provided with a second axial sealing ring (42), a second end face sealing ring (43) and a third bearing (44); One end of the active glue coating shaft (50) is mounted on one of the second bearings (34), and the other end is mounted on the third bearing (44); the active glue coating shaft (50) is provided with an active glue coating roller (51) and a spiral groove (52) for lifting hot melt glue; One end of the passive glue coating shaft (60) is mounted on a first bearing (211), and the other end is mounted on another second bearing (34); the passive glue coating shaft (60) is provided with a passive glue coating roller (61); The inner side surfaces of the first shaft hole (31) and the second shaft hole (41) are provided with a first accommodating recess (311), and the bottom or top is provided with a first accommodating notch (312); The first axial sealing ring (32) and the second axial sealing ring (42) are installed in corresponding first accommodating recesses (311), and the first end face sealing ring (33) and the second end face sealing ring (43) are installed in corresponding first accommodating notches (312).

2. The anti-leakage and anti-wear structure of the gluing mechanism of the edge banding machine according to claim 1 is characterized by: The tops of the active glue coating shaft (50) and the passive glue coating shaft (60) are both provided with transmission gears (53), and the two transmission gears (53) are meshed with each other.

3. The anti-leakage and wear-reducing structure of the gluing mechanism of the edge banding machine according to claim 1 is characterized by: A driving wheel (54) for connecting to a power end is provided at the bottom of the active glue coating shaft (50).

4. The anti-leakage and anti-wear structure of the gluing mechanism of the edge banding machine according to claim 1, characterized in that: The support frame (20) is rotatably mounted with a scraper assembly (24); the active glue coating roller (51) and the passive glue coating roller (61) are located beside the scraper assembly (24); and the distance between the scraper assembly (24) and the active glue coating roller (51) and the passive glue coating roller (61) can be selectively adjusted by rotating the scraper assembly (24).

5. The anti-leakage and anti-wear structure of the gluing mechanism of the edge banding machine according to claim 1 is characterized by: The support frame (20) is provided with a reflux groove (25) for the hot melt adhesive to flow back to the sol box (10).

6. The anti-leakage and wear-reducing structure of the gluing mechanism of the edge banding machine according to claim 1 is characterized by: The sol box (10) is provided with a flow guide channel (11), and the flow guide sleeve (22) is located above the flow guide channel (11); the spiral groove (52) is located in the flow guide channel (11) and the flow guide sleeve (22).

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