Device for pasting hot melt adhesive on outer frame of mobile phone

Abstract

The utility model relates to a device for pasting hot melt adhesive on a mobile phone outer frame, which comprises a hot melting tool, the hot melting tool is arranged on a bottom plate and comprises a plurality of pushing and pressing heating groups, the pushing and pressing heating groups are distributed in a radial shape, each pushing and pressing heating group comprises a heating part and a moving part, the front end of each heating part is arranged at a radial concentrated end, and the moving part is arranged at the tail end of each heating part. The moving part drives the heating part to move linearly, and the pushing and pressing heating set is used for heating the outer side of the mobile phone outer frame bonded with the hot melt adhesive. The utility model relates to the technical field of mobile phone shell processing equipment. The device can be matched with a control system for use, so that the hot melt adhesive is prevented from being activated, and meanwhile, the hot melt adhesive is attached to a mobile phone shell.

Description

Technical Field

[0001] The utility model relates to the technical field of mobile phone shell processing equipment, in particular to a device for pasting hot melt adhesive on a mobile phone outer frame. Background Art

[0002] With the development of science and technology, people have higher and higher requirements on the thickness of smart phones, and the thickness of mobile phones is getting thinner and thinner. Taking the electronic product mobile phone of the customer terminal as a typical case, the glue used to fix the outer frame and the internal bracket before the improvement is pressure-sensitive adhesive. The disadvantage of pressure-sensitive adhesive is that it is easy to age and fall off.

[0003] To address this problem, the pressure-sensitive adhesive was replaced with hot-melt adhesive. Hot-melt adhesive is much superior to pressure-sensitive adhesive in terms of adhesiveness, the bonding method of the outer frame and the internal bracket, and its stability.

[0004] However, hot melt adhesive bonding requires hot melting (including heating temperature, pressing pressure, pressing time, etc.) to be fixed, and existing equipment cannot accurately guarantee the perfect combination of heating temperature, pressing pressure and pressing time. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a device for pasting hot melt adhesive on the outer frame of a mobile phone, which has the function of effectively controlling the heating temperature, pressing pressure and pressing time when the hot melt adhesive is melted, thereby preventing the hot melt adhesive from being activated during the production process and affecting the subsequent bonding effect with the mobile phone.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A device for pasting hot melt adhesive on a mobile phone frame, comprising a hot melt tooling, the hot melt tooling is installed on a bottom plate and comprises a plurality of push-press heating groups, the push-press heating groups are radially distributed, the push-press heating groups comprise a heating part and a moving part, the front end of the heating part is arranged at a radial concentrated end, the moving part drives the heating part to move linearly, and the push-press heating group is used to heat the outer side of the mobile phone frame bonded with the hot melt adhesive;

[0008] The moving part is arranged at the radial end of the radial shape, the front end of the moving part is drivingly connected to the heating part, and the rear end of the moving part is fixed to the bottom plate through a positioning member;

[0009] The invention comprises a jig for pasting hot melt adhesive on a mobile phone outer frame and a profiling heating jig. The profiling heating jig is fixed on the bottom plate of the jig for pasting hot melt adhesive on the mobile phone outer frame and is arranged at the radial center.

[0010] In a preferred example, the utility model can be further configured as follows: a control panel is provided on the bottom plate, and the control panel is connected to the signal of the jig for pasting hot melt adhesive on the outer frame of the mobile phone and the profiling heating jig.

[0011] In a preferred example, the utility model can be further configured as follows: a fixing piece is provided at the edge of the bottom plate, and one side of the contoured heating jig is fixed on the fixing piece.

[0012] In a preferred example, the utility model can be further configured as follows: the profiling heating jig includes a jig body, three continuous surfaces connected by rounded corners are provided on the outside of the jig body, a convex strip is provided in the middle of the surface of the continuous surface, and the convex strip is used to place hot melt adhesive for adhering to the outer frame of the mobile phone. A heating component and a temperature sensor are also provided on the jig body, and the heating component increases the temperature of the jig body itself to melt the hot melt adhesive, and the temperature sensor is used to monitor the temperature of the jig body itself. There are five pushing and heating groups on the jig for pasting hot melt adhesive on the outer frame of the mobile phone, and the heating part of each pushing and heating group corresponds to one of the continuous surfaces or the rounded corners.

[0013] In a preferred example, the utility model can be further configured as follows: a plurality of pairs of hot melt adhesive fixing columns and mobile phone frame fixing columns are symmetrically provided on both sides of the convex strip.

[0014] In a preferred example, the utility model can be further configured as follows: a plurality of second through holes are provided on the convex strip on the contoured heating jig, a suction hole is provided on the outer side of the jig body, and a suction groove is provided inside, and the suction groove is connected to the second through holes and the suction hole.

[0015] In a preferred example, the utility model can be further configured as follows: a first through hole is provided on the upper surface of the fixture body, the air suction groove is a C-shaped groove, the air suction groove is upwardly connected to the first through hole, and there are two air suction holes, which are respectively connected to the two ends of the air suction groove.

[0016] In a preferred example, the utility model can be further configured as follows: the heating component includes a first placement groove and a heating rod, the first placement groove is opened inside the fixture body, the first placement groove is for the heating rod to be inserted, and there are at least three first placement grooves arranged equidistantly.

[0017] In summary, the present invention includes at least one of the following beneficial technical effects:

[0018] 1. A device for pasting hot melt adhesive on the outer frame of a mobile phone. The device heats the outer side of the outer frame of the mobile phone to be pasted with the hot melt adhesive, and can cooperate with the contoured heating fixture for heating the hot melt adhesive to achieve a firm fit of the hot melt adhesive inside the outer frame of the mobile phone without activating the hot melt adhesive. This design significantly reduces the reliance on manual operation, thereby improving production efficiency and the accuracy of the fit. In addition, since the need for manual adjustment and position correction is reduced, the error and scrap rate in the production process are also reduced, further ensuring the consistency of product quality and the continuity of production.

[0019] 2. A device for pasting hot melt adhesive on the outer frame of a mobile phone, which is composed of a jig for pasting hot melt adhesive on the outer frame of the mobile phone and a profiling heating jig. The system further reduces the use of manual labor, and through the integration of two high-performance modules, the simplification of the device and the improvement of production efficiency are achieved. This device can heat both sides of the hot melt adhesive at the same time through the control system, ensuring the precise control of precise temperature, pressure and time, and ensuring that the hot melt adhesive can be efficiently adhered to the product without activating the hot melt adhesive. This method not only improves the level of automation, but also ensures the quality standards of the product in mass production, meeting the high efficiency and high precision of production. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Is a schematic diagram of the overall structure of the present embodiment;

[0021] Figure 2 Figure 1 Schematic diagram of the overall structure of the middle fixture body;

[0022] Figure 3 yes Figure 2 Schematic diagram of the half-section structure of the middle fixture body.

[0023] In the figure, 1, hot melt tooling; 2, bottom plate; 3, contoured heating fixture; 4, positioning piece; 5, fixing piece; 11, push-press heating group; 111, heating part; 112, moving part; 31, fixture body; 32, continuous surface; 33, convex strip; 34, heating component; 35, temperature sensor; 36, second through hole; 37, air suction hole; 38, air suction slot; 39, first through hole; 311, hot melt adhesive fixing column; 312, mobile phone frame fixing column; 341, first placement slot; 342, heating rod. DETAILED DESCRIPTION

[0024] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0025] Example:

[0026] Reference Figure 1-Figure 3As shown, a device for pasting hot melt adhesive on the outer frame of a mobile phone comprises a hot melt tool 1, which is installed on a bottom plate 2 and comprises a plurality of push-and-press heating groups 11, which are radially distributed. The push-and-press heating group 11 comprises a heating part 111 and a moving part 112, the front end of the heating part 111 is arranged at the radial concentrated end, the moving part 112 drives the heating part 111 to move linearly, the moving part 112 is arranged at the radial end, the front end of the moving part 112 drives and connects the heating part 111, and the rear end of the moving part 112 is fixed on the bottom plate 2 through a positioning member 4. The push-and-press heating group 11 is used to heat the outer side of the outer frame of the mobile phone bonded with the hot melt adhesive, and each heating part 111 heats a part of the outer frame of the mobile phone according to an angle to ensure the uniformity of heating of the entire outer frame of the mobile phone.

[0027] Preferably, the movable part 112 is arranged at a radial end, the front end of the movable part 112 is drivingly connected to the heating part 111 , and the rear end of the movable part 112 is fixed on the bottom plate 2 via a positioning member 4 .

[0028] In some preferred embodiments, the moving part 112 uses a linear cylinder with simple structure, high efficiency and precision to drive the heating part 111 to move linearly, so as to ensure the implementation of effective pressure on the outer frame of the mobile phone during operation and the heat conduction efficiency of the heating part 111. In addition, the heating part 111 can be connected to a temperature control system to ensure the controllability and precision of the heating part 111 heating the outer frame of the mobile phone.

[0029] A device for pasting hot melt adhesive on the outer frame of a mobile phone, comprising the jig for pasting hot melt adhesive on the outer frame of the mobile phone in the previous scheme and a profiling heating jig 3 for heating the hot melt adhesive, wherein the profiling heating jig 3 is fixed on the bottom plate 2 of the jig for pasting hot melt adhesive on the outer frame of the mobile phone, and is arranged at the center of the radial shape. During operation, the hot melt adhesive is first fixed on the profiling heating jig 3, and then the outer frame of the mobile phone is covered with the hot melt adhesive, and the jig for pasting hot melt adhesive on the outer frame of the mobile phone heats the outer frame of the mobile phone, and the profiling heating jig 3 heats the hot melt adhesive at the same time. The two work together, and the heating temperature can be accurately controlled by the control system, and the pressure applied by the jig for pasting hot melt adhesive on the outer frame of the mobile phone is controlled at the same time, so as to ensure that the hot melt adhesive is not activated during the heating process, and at the same time, achieve efficient bonding with the outer frame of the mobile phone.

[0030] Furthermore, a fixing member 5 is provided at the edge of the bottom plate 2, and one side of the profiling heating fixture 3 is fixed on the fixing member 5. In this embodiment, the fixing member 5 is a fixing plate, which has a simple structure and a strong connection. When the outer frame of the mobile phone is C-shaped, it is particularly suitable because one side of the profiling heating fixture 3 is firmly mounted on the fixing plate.

[0031] Preferably, the profiling heating jig 3 comprises a jig body 31, the jig body 31 is provided with three continuous surfaces 32 connected by fillet transition on the outside, the continuous surface 32 is provided with a convex strip 33 in the middle of the surface, the convex strip 33 is used to place the hot melt adhesive for adhering to the outer frame of the mobile phone, the jig body 31 is also provided with a heating component 34 and a temperature sensor 35, the heating component 34 increases the temperature of the jig body 31 itself so as to melt the hot melt adhesive, the temperature sensor 35 is used to monitor the temperature of the jig body 31 itself, the jig for pasting hot melt adhesive on the outer frame of the mobile phone is provided with five push heating groups 11, and the heating part 111 of each push heating group 11 corresponds to one of the continuous surfaces 32 or the fillet. When the profiling heating jig 3 is working, the temperature sensor 35 and the heating component 34 can be controlled by the control system, the temperature sensor 35 sends the monitored temperature to the temperature controller on the control system, and the temperature controller controls the switch of the heating component 34 to ensure that the actual temperature on the jig body 31 meets the requirement of 50℃±1℃.

[0032] The hot melt adhesive fixing columns 311 and the mobile phone frame fixing columns 312 are symmetrically arranged on both sides of the convex strip 33. The mobile phone frame fixing columns 312 are used to fix the mobile phone frame. A protective film is attached to the bottom of the hot melt adhesive. The protective film with holes on both sides is set on the hot melt adhesive fixing columns 311 to ensure that the hot melt adhesive is aligned with the convex strip 33 and avoids direct contact with the fixture body 31. Through the above design, it is ensured that the mobile phone frame and the hot melt adhesive maintain a stable position during the pasting process, thereby improving the accuracy and efficiency of pasting.

[0033] The convex strip 33 on the imitation heating jig 3 is provided with a plurality of second through holes 36. The jig body 31 is provided with an air suction hole 37 on the outside and an air suction groove 38 on the inside. The air suction groove 38 is connected to both the second through hole 36 and the air suction hole 37. The upper surface of the jig body 31 is provided with a first through hole 39. The air suction groove 38 is a C-shaped groove. The air suction groove 38 is upwardly connected to the first through hole 39. There are two air suction holes 37, which are respectively connected to the two ends of the air suction groove 38. The heating component 34 includes a first placement groove 341 and a heating rod 342. The first placement groove 341 is provided inside the jig body 31. The first placement groove 341 is for the heating rod 342 to be inserted. The heating component 34 includes a first placement groove 341 and a heating rod 342. There are at least three first placement grooves 341 arranged equidistantly. During operation, the external suction device is connected to the two suction holes 37 with an air pipe, and the suction device is turned on to form negative pressure inside the first through hole 39 and the suction groove 38. Since the second through hole 36 and the suction groove 38 are connected, negative pressure is also formed at the second through hole 36, thereby tightly adsorbing the protective film with hot melt adhesive on the convex strip 33.

[0034] In this embodiment, two control panels are provided (not shown in the figure), including a first control panel and a second control panel. The temperature controller on the first control panel is electrically connected to the temperature sensor 35, the heating tube, and the heating rod 342. The first control panel controls the start and stop of the hot melt adhesive jig and the imitation heating jig 3 and the heating part 111 for pasting the mobile phone frame. The second control panel is electrically connected to the moving part 112 to control the extension and retraction of the moving part 112.

[0035] The implementation principle of the hot melt adhesive device for mobile phone frame is as follows:

[0036] The operator first fixes the profiling heating fixture 3 on the bottom plate 2, and then sets the protective film with hot melt adhesive on the hot melt adhesive fixing column 311. The operator turns on the external device to form negative pressure in the several vents to absorb the protective film on the convex strip 33.

[0037] In the next step, the operator removes the outer frame of the mobile phone. It should be noted that the outer frame of the mobile phone mentioned here is missing one side.

[0038] Make the mobile phone frame initially bonded with hot melt adhesive.

[0039] Next, the operator starts the heating part 111 and the moving part 112 of the jig for pasting hot melt adhesive on the outer frame of the mobile phone and the heating part 111 of the copy heating jig 3 through the control panel.

[0040] Specifically, the operator drives the moving part 112 through the second control panel to drive the corresponding heating part 111 to move toward the outer frame of the mobile phone, so that the heating part 111 touches the outer frame of the mobile phone.

[0041] More specifically, the movement sequence of the moving part 112 is: after the heating part 111 facing the front of the mobile phone frame is pressed against the front of the mobile phone frame through the second control panel, the heating part 111 facing the two corner surfaces of the mobile phone frame is then pressed against the corner surfaces of the mobile phone frame, and then the remaining two heating parts 111 corresponding to the two side surfaces of the mobile phone frame are brought into contact with the two side surfaces of the mobile phone frame.

[0042] The operator turns on the heating part 111 and / or the heating rod 342 through the first control panel. Under the heating effect of the heating part 111 and / or the heating rod 342, the temperature of the mobile phone frame and the fixture body 31 begins to rise. The temperature sensor 35 on the fixture body 31 sends the temperature data on the fixture body 31 to the temperature controller on the control system at any time. The temperature controller changes the start and stop state of the heating part 111 and / or the heating rod 342 according to the parameters to ensure that the temperature of the fixture body 31 is always controlled within the range of 50℃±1℃. Finally, the hot melt operation is realized without activating the hot melt adhesive, so that the hot melt adhesive is bonded to the mobile phone frame.

[0043] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A device for pasting hot melt adhesive on the outer frame of a mobile phone, characterized in that: The invention comprises a hot melt tool (1) and a plurality of push-press heating groups (11), wherein the push-press heating groups (11) are radially distributed, and the push-press heating groups (11) comprise a heating part (111) and a moving part (112), wherein the front end of the heating part (111) is arranged at a radially concentrated end, and the moving part (112) drives the heating part (111) to move linearly, and the push-press heating group (11) is used to heat the outer side of a mobile phone frame bonded with hot melt adhesive; The moving part (112) is arranged at a radial end, the front end of the moving part (112) is drivingly connected to the heating part (111), and the rear end of the moving part (112) is fixed on the bottom plate (2) via a positioning member (4); It comprises a jig for pasting hot melt adhesive on a mobile phone frame and a contour heating jig (3), wherein the contour heating jig (3) is fixed on a bottom plate (2) of the jig for pasting hot melt adhesive on a mobile phone frame and is arranged at the center of a radial shape.

2. A device for applying hot melt adhesive to a mobile phone frame according to claim 1, characterized in that: The bottom plate (2) is provided with a control panel, and the control panel is connected to the signal of the jig for pasting hot melt adhesive on the outer frame of the mobile phone and the profiling heating jig (3).

3. A device for applying hot melt adhesive to a mobile phone frame according to claim 2, characterized in that: A fixing piece (5) is provided at the edge of the bottom plate (2), and one side of the contoured heating jig (3) is fixed on the fixing piece (5).

4. The device for applying hot melt adhesive to a mobile phone frame according to claim 3, characterized in that: The profiling heating jig (3) comprises a jig body (31), the outer side of the jig body (31) is provided with three continuous surfaces (32) connected by rounded corners, the middle part of the surface of the continuous surface (32) is provided with a convex strip (33), the convex strip (33) is used to place hot melt adhesive for adhering to the outer frame of the mobile phone, the jig body (31) is also provided with a heating component (34) and a temperature sensor (35), the heating component (34) increases the temperature of the jig body (31) itself so as to melt the hot melt adhesive, and the temperature sensor (35) is used to monitor the temperature of the jig body (31) itself, and the jig for adhering hot melt adhesive to the outer frame of the mobile phone is provided with five pushing and heating groups (11), and the heating part (111) of each pushing and heating group (11) corresponds to one of the continuous surfaces (32) or the rounded corners.

5. The device for applying hot melt adhesive to a mobile phone frame according to claim 4, characterized in that: A plurality of pairs of hot melt adhesive fixing columns (311) and mobile phone outer frame fixing columns (312) are symmetrically arranged on both sides of the convex strip (33).

6. The device for applying hot melt adhesive to a mobile phone frame according to claim 5, characterized in that: The convex strip (33) on the profiling heating jig (3) is provided with a plurality of second through holes (36); the jig body (31) is provided with an air suction hole (37) on the outside and an air suction groove (38) on the inside; the air suction groove (38) is connected to both the second through holes (36) and the air suction hole (37).

7. A device for applying hot melt adhesive to a mobile phone frame according to claim 6, characterized in that: A first through hole (39) is provided on the upper surface of the fixture body (31); the air suction groove (38) is a C-shaped groove; the air suction groove (38) is upwardly connected to the first through hole (39); and there are two air suction holes (37) which are respectively connected to the two ends of the air suction groove (38).

8. The device for applying hot melt adhesive to a mobile phone frame according to claim 7, characterized in that: The heating component (34) comprises a first placement groove (341) and a heating rod (342), wherein the first placement groove (341) is provided inside the fixture body (31), the first placement groove (341) is for the heating rod (342) to be inserted, and there are at least three first placement grooves (341) arranged at equal distances.

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