Glue overflow prevention hot riveting device

Abstract

The utility model discloses a hot riveting device capable of preventing glue overflow. The hot riveting device comprises a carrier plate for positioning a product and a hot melting assembly which is arranged above the carrier plate and moves up and down, the hot melting assembly comprises a plurality of hot melting pressure heads, a containing groove is formed in the hot pressing end of each hot melting pressure head, a convex part is arranged in each containing groove, and a forming space for containing a hot riveting column for hot melting on a product is formed between each convex part and the groove wall of the corresponding containing groove. According to the utility model, the glue overflow is avoided after the hot riveting column is hot-melted, the connection strength between the hot riveting column and the cloth or the button after the hot riveting column is hot-melted is enhanced, and the connection stability between the cloth or the button and the panel is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of hot riveting, and in particular relates to a hot riveting device to prevent glue overflow. Background Art

[0002] The key hot riveting device is a device commonly used in the electronics manufacturing industry. It fixes metal or plastic keys on the operating panels of electronic products such as mobile phones, computer keyboards, remote controls, etc. by hot melting. This device can provide a firm key riveting fixing structure while maintaining a beautiful appearance. The hot riveted keys are not easy to fall off and can withstand a certain degree of impact and vibration.

[0003] The existing patent number is CN201710691943.7, which discloses an assembly process and hot melt system for multimedia navigation panels. It discloses that the first hot melt equipment has a machine base, a product placement bottom mold fixedly arranged on the machine base, a first heating device installed on the machine base in a manner of lifting and moving up and down and located above the product placement bottom mold, and a lifting drive device installed on the machine base to drive the heating device to move up and down. The lower bottom surface of the heating device is provided with a first hot melt rivet head fixture for hot melting. The above-mentioned hot melt system discloses the use of a lifting and moving hot melt rivet head for riveting operations, and this type of riveting operation is suitable for panel structures. For riveting fabrics or buttons on the panel, the common hot rivet head directly acts on the hot rivet column, and then the hot rivet column is hot-melted to rivet the fabric or buttons. After the hot rivet column is hot-melted, it is easy to overflow glue. Since the hot melt hot rivet column overflows the hot rivet head, the hot rivet column is hot-pressed into a thin sheet, which reduces the connection strength between the panel and the fabric or buttons. Utility Model Content

[0004] The purpose of the utility model is to solve the above technical problems and provide an anti-overflow glue hot riveting device, so as to prevent glue overflow after the hot riveting post is hot-melted, enhance the connection strength between the hot riveting post and the fabric or button after hot-melting, and ensure the stability of the connection between the fabric or button and the panel. In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0005] The anti-overflow glue hot riveting device comprises a carrier plate for positioning a product, and a hot melt component arranged above the carrier plate and capable of lifting and lowering; the hot melt component comprises a plurality of hot melt pressing heads, the hot pressing ends of the hot melt pressing heads are provided with a receiving groove, a convex portion is provided in the receiving groove, and a molding space for accommodating a hot rivet column hot-melted on the product is formed between the convex portion and the groove wall of the receiving groove.

[0006] Specifically, the carrier plate and the hot melt component are both arranged in a working machine, and the working machine includes a platform and a casing arranged outside the platform, and the carrier plate and the hot melt component are both arranged on the platform.

[0007] Specifically, the carrier plate is detachably positioned on the platform.

[0008] Specifically, the top of the carrier plate positions the product, and the top of the carrier plate is provided with a plurality of limit blocks arranged along the edge of the product.

[0009] Specifically, a pad for supporting the product is arranged on the top of the carrier plate, a via is arranged at the edge of the product, and the pad is arranged to avoid the via.

[0010] Specifically, the circumferential edge of the product has an upper flange, and a plurality of through holes are arranged in the upper flange.

[0011] Specifically, a plurality of heat rivet studs corresponding to the through holes are arranged inside the product, and the fabric or the button is matched with the heat rivet stud set.

[0012] Specifically, the hot melt assembly also includes a heating plate that is arranged to move up and down, and a plurality of hot melt pressure heads are arranged at the bottom of the heating plate.

[0013] Specifically, the hot melt pressure head is arranged corresponding to the hot riveting column, and a convex portion is arranged at the bottom end of the hot melt pressure head, and the convex portion is arranged at the central axis position of the hot melt pressure head.

[0014] Specifically, the molding space formed between the protrusion and the groove wall of the accommodating groove is an annular groove.

[0015] Compared with the prior art, the beneficial effects of the anti-overflow glue hot riveting device of the utility model are mainly reflected in:

[0016] By setting up a carrier plate, the product can be positioned stably and accurately to ensure that the through-hole position of the product is avoided, so that the fabric or button can pass through the through-hole, and the hot rivet column of the product is in a vertical upward state; the hot melt component has the function of raising and lowering the hot melt pressure head. The hot melt pressure head has a convex portion and a receiving groove, which can subsequently stably shape the molten hot rivet column, enhance the hot rivet connection strength between it and the fabric or button, and improve the hot riveting connection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of an embodiment of the utility model;

[0018] Figure 2 is a schematic diagram of a carrier board and a hot melt assembly in this embodiment;

[0019] Figure 3 This is a schematic diagram of the hot melt assembly structure in this embodiment;

[0020] Figure 4 This is a schematic diagram of the hot melt pressure head structure in this embodiment;

[0021] Figure 5 Schematic diagram of the carrier structure in this embodiment;

[0022] Figure 6This is a schematic diagram of the hot rivet stud structure where the cloth passes through the through hole in this embodiment;

[0023] Figure 7 This is a schematic diagram of the structure of the thermal rivet stud where the button passes through the via hole in this embodiment;

[0024] The numbers in the figure represent:

[0025] 1 product, 11 hot riveting column, 12 through hole, 13 upper flange, 2 carrier plate, 21 snap fastener, 22 limit block, 23 slide groove, 24 cushion block, 3 hot melt assembly, 31 hot melt pressure head, 32 heating plate, 33 driving part, 34 top plate, 35 guide column, 36 moving plate, 4 receiving groove, 41 protrusion, 42 ring groove, 5 platform, 51 casing. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present utility model are clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0027] Example:

[0028] Reference Figure 1-7 As shown, an embodiment of the present application provides an anti-overflow glue hot riveting device, including a carrier plate 2 for positioning a product 1, and a hot melt component 3 arranged above the carrier plate 2 and movable up and down; the hot melt component 3 includes a plurality of hot melt pressing heads 31, and the hot pressing end of the hot melt pressing head 31 is provided with a receiving groove 4, and a convex portion 41 is provided in the receiving groove 4, and a molding space for accommodating the hot-melted hot rivet column 11 on the product 1 is formed between the convex portion 41 and the groove wall of the receiving groove 4.

[0029] The carrier plate 2 and the hot melt assembly are both arranged in the working machine, and the working machine includes a platform 5 and a casing 51 arranged outside the platform 5. The carrier plate 2 and the hot melt assembly 3 are both arranged on the platform 5. The front end of the casing 51 is an operating space, and the operating space is located on both sides of the casing 51 with safety grilles.

[0030] The carrier plate 2 can be detachably positioned on the platform 5, and the carrier plate 2 and the platform 5 are connected and positioned by pins or bolts. Specifically, the carrier plate 2 is mounted on the platform 5 through a plurality of snap fasteners 21, and snap fasteners 21 are provided with snap holes, and mounting holes corresponding to the snap holes are provided in the carrier plate 2. Bolts are inserted into the snap holes and the mounting holes to position the carrier plate 2 to the platform 5, so that the carrier plate 2 can be stably positioned on the platform 5.

[0031] In this embodiment, the number of the fasteners 21 is four, and may also be two, three or more. The four fasteners 21 are located at the four corners of the carrier board 2 to balance and position the carrier board 2.

[0032] The product 1 is positioned on the top of the carrier plate 2, and a plurality of limit blocks 22 are arranged along the edge of the product 1 on the top of the carrier plate 2. A slide groove 23 is provided on the top of the carrier plate 2, and the limit blocks 22 are arranged in the slide groove 23. A limit hole is provided in the limit block 22, and a bolt is inserted into the limit hole to lock and position it at the bottom of the slide groove 23. The position of the limit block 22 in the slide groove 23 is adjusted, thereby limiting the edge position of the product 1.

[0033] A plurality of limit blocks 22 are arranged in groups on the top of the carrier plate 2, and the product 1 is clamped and positioned between two opposite limit blocks 22 to ensure that the circumferential position of the product 1 is in a balanced position. In this embodiment, at least two limit blocks 22 are arranged on each side of the product 1, or more limit blocks 22. The limit blocks 22 are arranged reasonably according to the size and length of the product 1.

[0034] A pad 24 for supporting the product 1 is provided on the top of the carrier board 2. A via 12 is provided at the edge of the product 1. The pad 24 is arranged to avoid the via 12. The pad 24 plays a role in strengthening support for the edge of the product with the via 12.

[0035] The product 1 of this embodiment is a panel structure, and the product 1 is a rectangular structure or other structure. The arrangement positions of the plurality of limit blocks 22 are adapted to the circumferential edge of the product 1. The circumferential edge of the product 1 has an upper flange 13. A plurality of through holes 12 are arranged in the upper flange 13, and the through holes 12 leave gaps for passing through the fabric, or for leaving gaps for buttons. The interior of the product 1 is provided with a plurality of hot riveting posts 11 corresponding to the through holes 12, and the fabric or buttons are fitted with the hot riveting posts 11. After the hot riveting posts 11 are hot-melted, the fabric or buttons are riveted and positioned on the product 1. One end of the fabric or button is connected to the hot riveting post 11, and the other end of the fabric or button extends out of the through hole 12 to expose the product 1.

[0036] The hot melt assembly 3 also includes a heating plate 32 that is movable and can be lifted. A plurality of hot melt pressure heads 31 are arranged at the bottom of the heating plate 32. The heating plate 32 is connected to a driving member 33 that drives it to lift. The driving member 33 is installed on the top plate 34. A plurality of guide pillars 35 are arranged between the top plate 34 and the platform 5. The heating plate 32 is arranged at the bottom of a movable plate 36. The movable plate 36 is sleeved on the plurality of guide pillars and slides up and down along the plurality of guide pillars. The driving member 33 drives the movable plate 36 to lift and lower, and then the movable plate 36 drives the heating plate 32 to lift and lower. The driving member 33 can be an electric driving member, a hydraulic driving member, a pneumatic driving member or other driving member. In this embodiment, the driving member 33 is a cylinder. The driving end of the driving member 33 is connected to the movable plate 36, specifically connected to the middle of the movable plate 36. The movable plate 36 is lifted and lowered steadily along the plurality of guide pillars.

[0037] A plurality of hot melt pressing heads 31 are connected to the heating plate 32, and the heating plate 32 has a heating function and transfers heat to the hot melt pressing heads 31. The hot melt pressing heads 31 are arranged corresponding to the hot riveting column 11, and a convex portion 41 is arranged at the bottom end of the hot melt pressing head 31, and the convex portion 41 is arranged at the central axis position of the hot melt pressing head 31, and the convex portion 41 can be a cone structure, a hemispherical structure, a frustum structure or other structures. In this embodiment, the convex portion 41 is a cone structure, and the molding space formed between the convex portion 41 and the groove wall of the accommodating groove 4 is an annular groove 42. When the hot melt pressing head 31 is aligned with the hot riveting column 11, it descends to heat and press the hot riveting column 11, and the hot riveting column 11 is in a molten state and is molded in the annular groove 42. Since the convex portion 41 squeezes the molten hot riveting column 11 toward the groove wall of the annular groove 42, the hot riveting column 11 is stably molded in the annular groove 42, avoiding the problem of glue overflow, and at the same time, avoiding the hot riveting column 11 from being hot-melted and pressed into a thin sheet, affecting the effect of hot riveting. The heat riveting column 11 is effectively formed in the forming space, and the forming structure has good connection strength, so that the cloth or button is stably heat-riveted to the product 1, and it is not easy to get loose or fall off.

[0038] When applying this embodiment, the fabric or button is passed through the through hole 12 and is mounted on the hot riveting column 11. Correspondingly, a hole corresponding to the hot riveting column 11 is set in the fabric or the button; the product 1 is positioned on the carrier board 2, the hot melt component 3 adjusts the lifting height, and the hot melt pressure head 31 is pressed onto the hot riveting column 11, and then the hot riveting column 11 hot rivets the fabric or button on the product 1.

[0039] In this embodiment, by providing a carrier plate 2, the product 1 is positioned stably and accurately to ensure that the position of the through hole 12 of the product 1 is avoided, so that the fabric or the button can pass through the through hole 12, and the hot rivet column 11 of the product 1 is in a vertically upward state; the hot melt component 3 has the function of raising and lowering the hot melt pressure head, and the hot melt pressure head 31 has a protrusion 41 and a receiving groove 4, which can subsequently stably shape the molten hot rivet column 11, enhance the hot riveting connection strength between it and the fabric or button, and improve the hot riveting connection effect.

[0040] In the description of this specification, the term "specific embodiment" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0041] Although the implementation methods disclosed in the utility model are as above, the above contents are only implementation methods adopted to facilitate the understanding of the utility model, and are not used to limit the utility model. Any technician in the field to which the utility model belongs can make any modifications and changes in the form and details of implementation without departing from the spirit and scope disclosed in the utility model, but the scope of patent protection of the utility model shall still be based on the scope defined in the attached claims.

Claims

1. Anti-overflow hot riveting device, characterized by: It includes a carrier plate for positioning products, and a hot melt component arranged above the carrier plate and capable of being lifted and lowered; the hot melt component includes a plurality of hot melt pressure heads, the hot pressing ends of the hot melt pressure heads are provided with receiving grooves, the receiving grooves are provided with convex portions, and a molding space for accommodating hot-melt hot rivet columns on the products is formed between the convex portions and the groove walls of the receiving grooves.

2. The anti-glue overflow hot riveting device according to claim 1, characterized in that: The carrier plate and the hot melt component are both arranged in a working machine, and the working machine comprises a platform and a casing arranged outside the platform, and the carrier plate and the hot melt component are both arranged on the platform.

3. The anti-overflow glue hot riveting device according to claim 2, characterized in that: The carrier plate is detachably positioned on the platform.

4. The anti-glue overflow hot riveting device according to claim 1, characterized in that: The top of the carrier plate positions the product, and the top of the carrier plate is provided with a plurality of limit blocks arranged along the edge of the product.

5. The anti-glue overflow hot riveting device according to claim 4, characterized in that: A pad for supporting the product is arranged on the top of the carrier plate, a via is arranged at the edge of the product, and the pad is arranged to avoid the via.

6. The anti-glue overflow hot riveting device according to claim 5, characterized in that: The peripheral edge of the product has an upper flange, and a plurality of through holes are arranged in the upper flange.

7. The anti-glue overflow hot riveting device according to claim 6, characterized in that: A plurality of heat rivet studs corresponding to the through holes are arranged inside the product, and the fabric or the button is matched with the heat rivet stud set.

8. The anti-glue overflow hot riveting device according to claim 1, characterized in that: The hot melt assembly also includes a heating plate that is arranged to move up and down, and a plurality of hot melt pressure heads are arranged at the bottom of the heating plate.

9. The anti-glue overflow hot riveting device according to claim 1, characterized in that: The hot melt pressure head is arranged corresponding to the hot riveting column, and a convex portion is arranged at the bottom end of the hot melt pressure head, and the convex portion is arranged at the central axis position of the hot melt pressure head.

10. The anti-glue overflow hot riveting device according to claim 9, characterized in that: The molding space formed between the protrusion and the groove wall of the accommodating groove is an annular groove.

Images