Automatic key hot-pressing jig

Abstract

The utility model discloses an automatic key hot-pressing jig, which relates to the technical field of hot-pressing jigs and comprises a machine table, a bottom die is mounted on the machine table, a die groove matched with an upper cover piece is formed in the bottom die, and a key groove matched with a key of the upper cover piece is formed in the inner bottom surface of the die groove; a rack is further installed on the machine table, an air cylinder is installed at the upper end of the rack, a fixing plate is arranged in the rack, and a telescopic shaft of the air cylinder penetrates through a top plate of the rack and then is fixedly connected with the fixing plate. Two heat conduction boxes are installed at the lower end of the fixing plate, heating rods are installed in inner cavities of the heat conduction boxes, the lower ends of the two heat conduction boxes are connected with two sets of heat conduction columns respectively, the lower ends of the two sets of heat conduction columns are connected with two upper modules respectively, and key modules corresponding to the key grooves are arranged at the lower ends of the two upper modules; the lower ends of the two upper modules are provided with heat insulation plates, through holes corresponding to the key modules are formed in the heat insulation plates, the heat transfer efficiency is high, the hot pressing efficiency is improved, the influence of the upper modules on a non-heating area of the shell is prevented through the heat insulation plates, shell deformation is avoided, and the product quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hot pressing jigs, in particular to an automatic hot pressing jig for buttons. Background Art

[0002] When using electronic devices, paired control handles are often produced to allow operators to conveniently control various functions of the device. During the production of the control handles, after the outer shell of the control handle is produced and formed, the corresponding buttons need to be installed in the outer shell.

[0003] Currently, the housing and buttons of a controller are typically assembled using a hot pressing jig. The housing and buttons are placed in a corresponding bottom mold, and a heated upper mold applies pressure to the housing and buttons in the bottom mold, firmly bonding the buttons to the housing.

[0004] However, in the existing hot pressing jig, when hot pressing and bonding the shell and the buttons, the shell and the buttons are directly hot pressed after the upper mold is heated. Due to the lack of sufficient heat insulation treatment, in addition to the corresponding button positions in the upper mold needing to be heated to melt the buttons and bond them to the shell, the entire upper mold is affected by the heating column, and the heat will be transferred to the non-hot pressing area. If the temperature of the upper mold in the non-hot pressing area is too high, the shell material may be deformed, affecting the quality and appearance of the product.

[0005] Therefore, it is necessary to propose a new technical solution to solve the above problems. Utility Model Content

[0006] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a technical solution that can solve the above-mentioned problems.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a key automatic hot pressing jig, comprising a machine platform, a bottom mold mounted on the machine platform, the bottom mold being formed with a mold groove adapted to the upper cover, and a key groove being formed on the bottom surface of the mold groove adapted to the key of the upper cover;

[0008] The machine platform is also equipped with a frame, a cylinder is installed on the upper end of the frame, a fixed plate is provided in the frame, and the telescopic shaft of the cylinder passes through the top plate of the frame and is fixedly connected to the fixed plate;

[0009] Two heat-conducting boxes are installed at the lower end of the fixing plate, and a heating rod is installed in the inner cavity of the heat-conducting box. The lower ends of the two heat-conducting boxes are respectively connected to two groups of heat-conducting columns, and the lower ends of the two groups of heat-conducting columns are respectively connected to two upper modules. The lower ends of the two upper modules are provided with key modules corresponding to the key slots;

[0010] The lower ends of the two upper modules are both provided with heat insulation plates, and the heat insulation plates are formed with through holes corresponding to the key modules.

[0011] As a further solution of the present invention: a heat insulating block is provided between the heat conducting box and the fixing plate.

[0012] As a further solution of the present invention: sliding holes are opened on both sides of the fixed plate, sliding sleeves are set in the sliding holes, two directional rods are provided between the top plate of the frame and the machine platform, and the two directional rods respectively pass through the sliding sleeves and are connected with the sliding fit.

[0013] As a further solution of the present invention: a plurality of fixing columns are provided between the upper module and the heat conduction box.

[0014] As a further solution of the present invention: two start buttons separated by a certain distance are provided on one side end of the machine, and the start buttons are electrically connected to the cylinder.

[0015] As a further solution of the present invention: both sides of the mold groove are provided with a clearance groove connected to the outside, and the bottom mold is formed with a notch groove corresponding to the housing hanging ear.

[0016] As a further solution of the present invention: the bottom surface of the mold groove is formed with a curved surface along the edge that is adapted to the shell.

[0017] As a further solution of the present invention: a time relay electrically connected to the cylinder is installed in the machine, and a time regulator electrically connected to the time relay is installed at the side end of the machine.

[0018] As a further solution of the present invention: a temperature display is provided on one side of the machine, and a temperature sensing wire is connected between the heating rod and the temperature display.

[0019] As a further solution of the present invention: an emergency stop button is provided on the machine.

[0020] Compared with the existing technology, the beneficial effects of this technical solution are:

[0021] During hot pressing, the heating rod inside the heat-conducting box emits heat, which is transferred to the heat-conducting box, and then the heat-conducting box transfers the heat to several heat-conducting columns below, so that the heat-conducting columns heat the two upper modules. Then, the cylinder is started to press the upper module downward, and the button module of the upper module heat-seals the button in the shell, so that the button and the shell are heat-fused and fixed. The heat transfer efficiency is high, which improves the efficiency of hot pressing.

[0022] When the upper module performs heat pressing on the housing and buttons, the heat insulation between the upper module and the housing is achieved through the heat insulation plate at the lower end of the upper module. At the same time, a through hole corresponding to the button module is opened. When the button module can perform heat pressing on the buttons normally, the heat pressing effect of the upper module on the non-heating area of ​​the housing is reduced, which can prevent the upper module from transferring heat to the non-heating area of ​​the housing and causing material deformation, thereby improving the appearance and quality of the product.

[0023] The utility model provides a key groove corresponding to the key in the mold groove, a notch groove corresponding to the housing ear, and a curved surface corresponding to the housing along the edge, so that the housing and the mold groove can be more closely fitted, thereby avoiding displacement of the housing during the hot pressing process that affects the hot pressing effect.

[0024] The utility model provides two start buttons for jointly controlling the cylinder, and separates the two start buttons by a certain distance, so that the worker needs to press the two start buttons with both hands at the same time to start the cylinder to press the fixed plate down, thereby avoiding injury to the worker;

[0025] The utility model utilizes the sliding matching connection of the sliding sleeves on both sides and the directional rod, so that when the cylinder pushes the fixed plate to rise and fall, the fixed plate and the upper module maintain linear motion, thereby improving the hot pressing accuracy.

[0026] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0028] Figure 1 It is a structural diagram of the utility model;

[0029] Figure 2 It is another perspective schematic diagram of the present invention;

[0030] Figure 3 This is a schematic diagram of the bottom mold structure of the utility model;

[0031] Figure 4 This is a schematic diagram of the upper module structure of the utility model;

[0032] Figure 5 This is a schematic diagram of the cross-sectional structure of the heating box of the present utility model;

[0033] Figure 6 This is a schematic diagram of the front structure of the shell of the utility model;

[0034] Figure 7 This is a schematic diagram of the back structure of the shell of the utility model;

[0035] The corresponding reference numerals in the accompanying drawings are described as follows:

[0036] 1. Machine platform; 2. Bottom mold; 3. Frame; 4. Heat transfer box; 5. Upper module; 6. Heat shield; 7. Time regulator; 8. Temperature display; 9. Orientation rod;

[0037] 101. Start button; 102. Emergency stop button;

[0038] 201, mold groove; 202, key groove; 203, clearance groove; 204, notch groove;

[0039] 301, cylinder; 302, fixed plate; 303, sliding sleeve; 304, thermal insulation block;

[0040] 401, heating rod; 402, heat conducting column;

[0041] 501, button module; 502, fixing column;

[0042] 601. Through hole. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0044] See also Figure 1-7 A key automatic hot pressing fixture includes a machine 1, a bottom mold 2 is installed on the machine 1, the bottom mold 2 is formed with a mold groove 201 adapted to the upper cover, and the bottom surface of the mold groove 201 is formed with a key groove 202 adapted to the key of the upper cover. Figure 6-Figure 7 The figure shows the shell of the control handle and the button bonded to the shell after heat pressing, wherein one side of the shell is provided with two hanging ears for snapping on the other half of the shell;

[0045] Preferably, both sides of the mold cavity 201 are provided with clearance grooves 203 connected to the outside. Specifically, the provision of the clearance grooves 203 facilitates the staff to place the shell into the mold cavity 201 and also facilitates the staff to remove the shell from the mold cavity 201.

[0046] More preferably, the bottom surface of the mold groove 201 is formed with an arc surface along the edge that matches the shell; this allows the shell to fit more closely with the mold groove 201, thereby improving the hot pressing effect and avoiding displacement of the shell during hot pressing.

[0047] More preferably, a notch 204 corresponding to the housing lug is formed on the bottom mold 2, so that when the housing is placed in the mold groove 201, the lug can be correspondingly located in the notch 204, thereby preventing the lug from being damaged during hot pressing;

[0048] Preferably, a frame 3 is further installed on the machine 1, a cylinder 301 is installed on the upper end of the frame 3, a fixed plate 302 is provided in the frame 3, and the telescopic shaft of the cylinder 301 passes through the top plate of the frame 3 and is fixedly connected to the fixed plate 302. Figure 1-Figure 2 As shown, the frame 3 is mounted and fixed on the machine platform 1 in a U-shape. The fixed plate 302 is located in the inner area of ​​the frame 3. The cylinder 301 is mounted on the top plate of the frame 3. The top plate is provided with a through hole. The telescopic shaft of the cylinder 301 passes through the through hole of the top plate and is fixed to the fixed plate. By activating the cylinder 301, the fixed plate 302 can be raised and lowered.

[0049] More preferably, two start buttons 101 separated by a certain distance are provided on one side of the machine 1, and the start buttons 101 are electrically connected to the cylinder 301. Specifically, the two separate start buttons 101 are used to jointly control the start of the cylinder 301, so that the worker only needs to press the two start buttons 101 with both hands at the same time to start the cylinder 301 and press the fixing plate 302 downward, thereby avoiding injury to the worker.

[0050] Preferably, Figure 1-Figure 2 and Figure 4-Figure 5 As shown, two heat-conducting boxes 4 are installed at the lower end of the fixing plate 302, and a heating rod 401 is installed in the inner cavity of the heat-conducting box 4. The lower ends of the two heat-conducting boxes 4 are respectively connected to two groups of heat-conducting columns 402, and the lower ends of the two groups of heat-conducting columns 402 are respectively connected to two upper modules 5. The lower ends of the two upper modules 5 are provided with key modules 501 corresponding to the key slots 202. The heat-conducting boxes 4 and the heat-conducting columns 402 can both be made of copper. The heat-conducting box 4 is a box body composed of multiple plates. The heating rod 401 is installed inside the heat-conducting box 4, and the power cord is connected to the heating rod 401. A power supply (not shown in the figure) is installed inside the machine to power the heating rod 401.

[0051] The upper module 5 is made of ceramic and has excellent thermal conductivity;

[0052] The lower ends of the two upper modules 5 are both provided with a heat insulation plate 6, and the heat insulation plate 6 is formed with a through hole 601 corresponding to the key module 501;

[0053] The bottom mold is made of high temperature resistant material, specifically PTFE, etc., which is not limited here.

[0054] Specifically, during hot pressing, the heating rod 401 inside the heat-conducting box 4 emits heat, which is transferred to the heat-conducting box 4, and then the heat-conducting box 4 transfers the heat to the several heat-conducting columns 402 below, so that the heat-conducting columns 402 heat the two upper modules 5. Then, the cylinder 301 is started to press the fixing plate 302, the heat-conducting box 4, the heat-conducting columns 402 and the upper module 5 downward, so that the upper module 5 performs hot pressing on the shell in the mold groove 201, and the button module 501 performs hot melting on the button in the shell, so that the button and the shell are hot-fused and fixed. The upper module 501 is fixed to the shell, thereby completing the hot pressing fixation of the button and the shell, and when the upper module 5 hot presses the shell and the button, the heat insulation between the upper module 5 and the shell is achieved by the heat insulation plate 6 at the lower end of the upper module 5. At the same time, a through hole 601 corresponding to the button module 501 is opened, so that when the button module 501 can normally hot press the button, the hot pressing effect of the upper module 5 on the non-heating area of ​​the shell is reduced, which can avoid the upper module 5 transferring heat to the non-heating area of ​​the shell to cause deformation of the material, thereby improving the appearance and quality of the product.

[0055] More preferably, a heat insulating block 304 is provided between the heat conducting box 4 and the fixing plate 302, and the heat insulating block 304 is used to prevent the heat of the heat conducting box 4 from being transferred to the fixing plate 302, thereby reducing heat loss.

[0056] More preferably, Figure 2 As shown, a plurality of fixing columns 502 are provided between the upper module 5 and the heat-conducting box 4 , and the upper module 5 and the heat-conducting box 4 are fixedly connected by the fixing columns 502 , thereby increasing the structural strength and avoiding damage.

[0057] More preferably, the upper module 5 is formed with an arc surface corresponding to the shell along the edge, so that the upper module 5 can fit the shell more closely.

[0058] More preferably, sliding holes are opened on both sides of the fixed plate 302, and sliding sleeves 303 are arranged in the sliding holes. Two directional rods 9 are provided between the top plate of the frame 3 and the machine platform 1, and the two directional rods 9 respectively pass through the sliding sleeves 303 and are connected with the sliding fit; when the cylinder 301 pushes the fixed plate 302 to perform lifting movements, the sliding fit connection between the sliding sleeves 303 on both sides and the directional rods 9 is utilized to enable the fixed plate 302 to maintain linear motion, thereby improving the hot pressing accuracy.

[0059] Furthermore, a time relay electrically connected to the cylinder 301 is installed in the machine 1 , a time regulator 7 electrically connected to the time relay is installed at the side end of the machine 1 , and the time relay is electrically connected to the start button 101 .

[0060] Specifically, the setting time of the time relay installed in the machine 1 is adjusted by the time regulator 7, so that when the start button 101 is pressed, the cylinder 301 and the time relay are started synchronously. When the cylinder 301 starts, the upper module 5 performs hot pressing on the outer shell. When the time set by the time relay is reached and the hot pressing is completed, the cylinder 301 will automatically start and drive the upper module 5 to rise, thereby making the operation more automated and improving work efficiency.

[0061] Furthermore, a temperature display 8 is provided on one side of the machine, and a temperature sensing line is connected between the heating rod 401 and the temperature display 8. More specifically, a temperature sensor is also installed in the machine 1. The temperature sensing line measures the temperature of the heating rod 401 and transmits the temperature data to the temperature sensor. The temperature sensor transmits the data to the temperature display 8 for display, so that the staff can understand the current heat source temperature at any time.

[0062] Furthermore, an emergency stop button 102 is provided on the machine 1, and the emergency stop button 102 is electrically connected to the cylinder 301 and the heating rod 401. Through the emergency stop button 102, the cylinder 301 and the heating rod 401 can be turned off in an emergency.

[0063] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A button automatic hot pressing fixture, characterized in that: The machine comprises a platform (1), a bottom mold (2) is mounted on the platform (1), the bottom mold (2) is formed with a mold groove (201) adapted to the upper cover, and the inner bottom surface of the mold groove (201) is formed with a key groove (202) adapted to the key of the upper cover; The machine platform (1) is further provided with a frame (3), an upper end of the frame (3) is provided with a cylinder (301), a fixing plate (302) is provided in the frame (3), and a telescopic shaft of the cylinder (301) passes through the top plate of the frame (3) and is fixedly connected to the fixing plate (302); Two heat-conducting boxes (4) are installed at the lower end of the fixing plate (302), and a heating rod (401) is installed in the inner cavity of the heat-conducting box (4). The lower ends of the two heat-conducting boxes (4) are respectively connected to two groups of heat-conducting columns (402), and the lower ends of the two groups of heat-conducting columns (402) are respectively connected to two upper modules (5). The lower ends of the two upper modules (5) are provided with key modules (501) corresponding to the key slots (202); The lower ends of the two upper modules (5) are both provided with a heat insulation plate (6), and the heat insulation plate (6) is formed with a through hole (601) corresponding to the key module (501).

2. The automatic hot pressing jig for buttons according to claim 1, characterized in that: A heat insulating block (304) is provided between the heat conducting box (4) and the fixing plate (302).

3. The automatic hot pressing jig for buttons according to claim 1, characterized in that: Sliding holes are provided on both sides of the fixing plate (302), and sliding sleeves (303) are provided in the sliding holes. Two directional rods (9) are provided between the top plate of the frame (3) and the machine platform (1), and the two directional rods (9) respectively pass through the sliding sleeves (303) and are connected with the sliding sleeves (303).

4. The automatic hot pressing jig for buttons according to claim 2, characterized in that: A plurality of fixing columns (502) are provided between the upper module (5) and the heat conduction box (4).

5. The automatic hot pressing jig for buttons according to claim 1, characterized in that: Two start buttons (101) separated by a certain distance are provided on one side of the machine (1), and the start buttons (101) are electrically connected to the cylinder (301).

6. The automatic hot pressing jig for buttons according to claim 1, characterized in that: Both sides of the mold groove (201) are provided with clearance grooves (203) connected to the outside, and the bottom mold (2) is formed with a notch groove (204) corresponding to the housing hanging ear.

7. The automatic hot pressing jig for keys according to claim 6, characterized in that: The bottom surface of the mold groove (201) is formed with a curved surface along the edge that matches the shell.

8. The automatic hot pressing jig for buttons according to claim 5, characterized in that: A time relay electrically connected to the cylinder (301) is installed in the machine (1), and a time regulator (7) electrically connected to the time relay is installed at the side end of the machine (1).

9. The automatic hot pressing jig for buttons according to claim 1, characterized in that: A temperature display (8) is provided on one side of the machine, and a temperature sensing wire is connected between the heating rod (401) and the temperature display (8).

10. The automatic hot pressing jig for buttons according to claim 1, characterized in that: The machine (1) is provided with an emergency stop button (102).

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