Profiling jig
By integrating heating components and temperature sensors on the imitation fixture, the precise temperature control of hot melt adhesive is achieved, and the temperature control problem of hot melt adhesive during the pre-adhesion process of mobile phone frames is solved, and the bonding effect and stability are improved.
Patent Information
- Application Number
- CN202420927433.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-04-30
AI Technical Summary
The prior art is difficult to effectively control the temperature of the hot melt adhesive, which causes it to fail to achieve the ideal bonding effect during the pre-adhesion process with the mobile phone frame, and it is easy to be accidentally activated due to excessive temperature.
A model fixture is designed with temperature control function. By setting heating components and temperature sensors on the fixture body, precise temperature control of the hot melt adhesive is achieved, ensuring pre-adhesion without activating the hot melt adhesive.
By precisely controlling the temperature of the fixture body, the stable pre-adhesion of hot melt adhesive and the mobile phone frame is achieved, the temperature control problem is solved, and the adhesion effect and stability are improved.
Smart Images
Figure CN222606991U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hot melt adhesive placement jigs, in particular to a profiling jig. Background Art
[0002] With the development of technology, people's requirements for the thickness of smartphones are getting higher and higher, and the thickness of mobile phones is getting thinner and thinner.
[0003] Previously, pressure-sensitive adhesive was used to connect the fixed outer frame of the mobile phone to its internal bracket, but the pressure-sensitive adhesive is prone to aging and falling off. In order to solve the problem of easy falling off, the pressure-sensitive adhesive is replaced with hot-melt adhesive. The viscosity and stability of hot-melt adhesive are much higher than those of pressure-sensitive adhesive, and the use of hot-melt adhesive can solve the falling off problem.
[0004] Due to its own characteristics, hot melt adhesive needs to be hot-melted when bonding. Due to the characteristics of hot melt adhesive, hot melt treatment is required when bonding. By preheating the hot melt adhesive (not reaching the activation state), low adhesion can be generated, which is convenient for positioning and bonding with the optical fiber (OF). This step also facilitates the customer's subsequent activation operations. If the temperature is too low, the hot melt adhesive will not be able to bond with the optical fiber, resulting in falling off and failing to achieve the expected positioning effect; conversely, if the temperature is too high, the hot melt adhesive may be misactivated, which also fails to meet customer needs. Therefore, in the pre-bonding process of hot melt adhesive and product frame, temperature control is extremely critical and must be kept within an appropriate range, neither too high nor too low. The jig currently used is mainly used to bond pressure-sensitive adhesive to the product frame, which does not involve the impact of temperature on the colloid and product quality. It is obviously not suitable for the pre-bonding process of hot melt adhesive and product frame. Utility Model Content
[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a profiling jig having a temperature control function for the jig body, and realizing the function of pre-bonding the hot melt adhesive to the product frame without activating the hot melt adhesive.
[0006] The above technical objectives of the utility model are achieved through the following technical solutions:
[0007] A profiling jig includes a jig body, wherein a convex strip is arranged on the outer side of the jig body, wherein the convex strip is used to place hot melt adhesive for adhering a product frame, and wherein a heating component and a temperature sensor are also arranged on the jig body, wherein the heating component increases the temperature of the jig body itself so as to melt the hot melt adhesive, and the temperature sensor is used to monitor the temperature of the jig body itself.
[0008] In a preferred example, the utility model can be further configured as follows: a plurality of pairs of hot melt adhesive fixing columns and product frame fixing columns are symmetrically provided on both sides of the convex strip.
[0009] In a preferred example, the utility model can be further configured as follows: the convex strip is arranged in the middle of three continuous surfaces on the outer side of the fixture body, and the continuous surfaces are connected by rounded transition.
[0010] 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, a suction hole is provided on the outer side of the fixture body, and a suction groove is provided inside, and the suction groove and the second through holes are all connected to the suction hole.
[0011] 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 jig body, the air suction groove is a C-shaped groove, the air suction groove is upwardly connected to the first through hole opened on the upper surface of the jig body, and there are two air suction holes, which are respectively connected to the two ends of the air suction groove.
[0012] 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, and the first placement groove is for the heating rod to be inserted.
[0013] In a preferred example, the present invention can be further configured as follows: at least three first placement slots are provided and are arranged equidistantly.
[0014] In summary, the utility model includes at least one of the following beneficial technical effects:
[0015] 1. By setting a heating component on the fixture body, the fixture body has a temperature control function, and the function of pre-bonding the hot melt adhesive to the product frame is achieved without activating the hot melt adhesive.
[0016] 2. A temperature sensor is provided on the fixture body, and the temperature sensor is electrically connected to the temperature controller. The temperature sensor senses the specific temperature of the fixture body and sends the data to the temperature controller. The temperature controller controls the switch status of several heating rods on the fixture body to control the temperature of the fixture body.
[0017] 3. By arranging a suction hole, a first through hole and a second through hole on the jig body, the position of the hot melt adhesive with a protective film on the jig body is further fixed by an external suction device. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the overall structure of this embodiment;
[0019] Figure 2 yes Figure 1 Schematic diagram of the left view structure;
[0020] Figure 3 yes Figure 2 Schematic diagram of the half-section structure.
[0021] In the figure, 1. fixture body; 11. convex strip; 2. heating component; 21. heating rod; 22. first placement slot; 23. temperature sensor; 3. hot melt adhesive fixing column; 4. product frame fixing column; 5. air suction hole; 6. first through hole; 7. second through hole; 8. air suction slot. DETAILED DESCRIPTION
[0022] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0023] Example:
[0024] Reference Figure 1-Figure 3 As shown, it includes a jig body 1, and a convex strip 11 is provided on the outer side of the jig body 1, and the convex strip 11 is used to place the hot melt adhesive for adhering the product frame. The jig body 1 is also provided with a heating component 2 and a temperature sensor 23. The heating component 2 increases the temperature of the jig body 1 itself so as to melt the hot melt adhesive, and the temperature sensor 23 is used to monitor the temperature of the jig body 1 itself. When working, the temperature sensor 23 and the heating component 2 are both controlled by a control system (not shown in the figure). The temperature sensor 23 sends the monitored temperature to the temperature controller on the control system, and the temperature controller controls the switch of the heating component 2 to ensure that the actual temperature on the jig body 1 meets the requirement of 50℃±1℃.
[0025] Hot melt adhesive fixing columns 3 and product frame fixing columns 4 are symmetrically arranged on both sides of the convex strip 11 .
[0026] The convex strip 11 is arranged in the middle of three continuous surfaces connected by rounded corners on the outside of the jig body 1. A plurality of second through holes 7 are arranged on the convex strip 11, and the jig body 1 is provided with an air suction hole 5 on the outside and an air suction groove 8 inside, and the air suction groove 8 is connected with the second through hole 7 and the air suction hole 5.
[0027] The air suction groove 11 is a C-shaped groove, which is upwardly connected to the first through hole 6 opened on the upper surface of the fixture body 1. There are two air suction holes 5, which are respectively connected to the two ends of the air suction groove 8.
[0028] Furthermore, the heating assembly 2 comprises a first placement slot 22 for inserting the heating rod 21 of the fixture body 1. There are at least three first placement slots 22 arranged at equal intervals.
[0029] When working, the temperature sensor 23 sends the monitored temperature to the temperature controller (not shown in the figure) on the control system, and the temperature controller promptly controls the switch states of the plurality of inserted heating rods 21 to ensure that the actual temperature on the fixture body 1 meets the requirement of 50°C ± 1°C. The implementation principle of the above embodiment is:
[0030] The operator places the die-cut protective film with hot-melt adhesive on the convex strip 11 , and the hot-melt adhesive is not in direct contact with the fixture body 1 .
[0031] The holes on the protective film are sleeved on the hot melt adhesive fixing column 3 .
[0032] Next, the operator uses an air pipe to connect the external suction device to the two suction holes 5, and turns on the suction device, so that negative pressure is formed inside the first through hole 6 and the suction groove 8. Since the second through hole 7 is connected to the suction groove 8, negative pressure is also formed at the second through hole 7, thereby tightly adsorbing the protective film with hot melt adhesive on the convex strip 11. Next, the operator places the product frame on the fixture body 1. In this embodiment, the product frame is a semi-frame structure.
[0033] The product frame portion is sleeved on the corresponding product frame fixing column 4, thereby fixing the position of the product frame.
[0034] At this time, the product frame covers the entire convex strip 11, and the hot melt adhesive is in contact with the inner wall of the product frame.
[0035] The operator turns on the heating rods 21 through the control system. Under the heating effect of the heating rods 21, the temperature on the fixture body 1 begins to rise. The temperature sensor 23 on the fixture body 1 sends the temperature data on the fixture body 1 to the temperature controller on the control system at any time. The temperature controller changes the switch state of the heating rods 21 according to the parameters to ensure that the temperature of the fixture body 1 is always controlled within the range of 50℃±1℃. Finally, the hot melt operation of the hot melt adhesive is realized, so that the hot melt adhesive is bonded to the product frame.
[0036] 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 profiling jig, characterized in that: The jig body (1) comprises a jig body (1), wherein a convex strip (11) is provided on the outer side of the jig body (1), wherein the convex strip (11) is used to place hot melt adhesive for adhering to a product frame, and wherein a heating component (2) and a temperature sensor (23) are also provided on the jig body (1), wherein the heating component (2) increases the temperature of the jig body (1) itself so as to melt the hot melt adhesive, and the temperature sensor (23) is used to monitor the temperature of the jig body (1) itself.
2. A profiling jig according to claim 1, characterized in that: A plurality of pairs of hot melt adhesive fixing columns (3) and product frame fixing columns (4) are symmetrically arranged on both sides of the convex strip (11).
3. The profiling jig according to claim 1, characterized in that: The convex strip (11) is arranged in the middle of three continuous surfaces on the outside of the jig body (1), and the continuous surfaces are connected by rounded transitions.
4. A profiling jig according to any one of claims 1 to 3, characterized in that: The convex strip (11) is provided with a plurality of second through holes (7), the outside of the fixture body (1) is provided with an air suction hole (5), and the inside of the fixture body (1) is provided with an air suction groove (8), and the air suction groove (8) is connected to both the second through holes (7) and the air suction hole (5).
5. A profiling jig according to claim 4, characterized in that: The upper surface of the fixture body (1) is provided with a first through hole (6); the air suction groove (8) is a C-shaped groove; the air suction groove (8) is connected upward to the first through hole (6); and there are two air suction holes (5), which are respectively connected to the two ends of the air suction groove (8).
6. A profiling jig according to any one of claims 1 to 3, characterized in that: The heating component (2) comprises a first placement groove (22) and a heating rod (21), wherein the first placement groove (22) is provided inside the fixture body (1), and the first placement groove (22) is for the heating rod (21) to be inserted.
7. A profiling jig according to claim 6, characterized in that: At least three of the first placement grooves (22) are arranged at equal intervals.