Plastic jig

Abstract

The utility model relates to the field of hardware jigs, and discloses a plastic jig which comprises an upper machine table adapter plate and a lower machine table adapter plate, an upper die is arranged at the bottom of the upper machine table adapter plate, a lower die is arranged at the top of the lower machine table adapter plate, and a plurality of side pushing air cylinders are arranged at the bottom of the upper machine table adapter plate and in the circumferential direction of the upper die. The driving ends of the multiple side pushing air cylinders all face the upper die, connecting pieces are arranged at the driving ends of the multiple side pushing air cylinders, heating copper blocks are arranged on the sides, close to the upper die, of the connecting pieces, heating pipes penetrate through the heating copper blocks, and temperature sensors are arranged in the heating copper blocks and located on one sides of the heating pipes; and a hot pressing piece is arranged between the upper die and the lower die. According to the utility model, the yield and the efficiency of hot-pressing piece production can be improved.

Description

Technical Field

[0001] The utility model relates to the field of hardware fixtures, in particular to a plastic fixture. Background Art

[0002] After the 3C products’ hardware and plastic are assembled with AB glue, they need to go through a hot pressing process. Tablets are no exception. After the tablet’s hardware back cover and the tablet’s plastic middle frame are glued and assembled, the product is subjected to hot pressing. The purpose is to accelerate the curing of the AB glue, maintain the qualified shape of the product, and activate the activity of the AB glue so that the two are firmly bonded together.

[0003] The existing AB glue hot pressing process for hardware and plastic parts has the following disadvantages in actual operation:

[0004] 1. The temperature is unstable when the plastic parts are heated and molded, resulting in unstable hot pressing molding efficiency;

[0005] 2. When the product is actually hot-pressed and molded, the hardware and plastic middle frame of the product are glued and left to solidify, so that the AB glue is not activated, resulting in defective products with graded defects;

[0006] 3. It is inconvenient to take and put the original parts after actual shaping. Utility Model Content

[0007] The utility model aims to solve the shortcomings in the prior art and provides a plastic jig.

[0008] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a plastic jig, comprising an upper machine adapter plate and a lower machine adapter plate, an upper mold is arranged at the bottom of the upper machine adapter plate, a lower mold is arranged at the top of the lower machine adapter plate, a plurality of side thrust cylinders are arranged at the bottom of the upper machine adapter plate and in the circumferential direction of the upper mold, the driving ends of the plurality of side thrust cylinders are all facing the upper mold, the driving ends of the plurality of side thrust cylinders are all provided with connecting parts, a heating copper block is arranged on one side of the connecting part close to the upper mold, a heating tube is penetrated through the heating copper block, a temperature sensor is arranged in the heating copper block and on one side of the heating tube, and a hot pressing part is arranged between the upper mold and the lower mold;

[0009] Furthermore, the upper machine adapter plate drives the upper mold close to the lower mold, and a hot pressing part is set between the upper mold and the lower mold. At the same time, the side push cylinder pushes the heating copper block through the connecting part, and the heating copper block heats the hot pressing part to activate the AB glue in the hot pressing part, thereby ensuring the stable combination of hardware and plastic products. The heating tube in the heating copper block cooperates with the thermometer to accurately and constantly adjust the temperature of the heating copper block, so that hardware and plastic plastic jigs can produce hot pressing parts with high yield.

[0010] As a further description of the above technical solution:

[0011] A limiting member is provided on one side of the heating copper block close to the upper mold, and the limiting member is used for accurate positioning between the hot pressing part and the upper mold;

[0012] Furthermore, the limiting part and the heating copper block are integrally formed, which can ensure that the hot-pressed part and the lower mold are accurately aligned, while ensuring that the hot-pressed part is fully and accurately heated.

[0013] As a further description of the above technical solution:

[0014] Both sides of the side thrust cylinder are provided with mounting angles, and the mounting angles are fixedly connected to the upper machine table adapter plate;

[0015] Furthermore, the mounting angle fixes the side-thrust cylinder on the upper machine table adapter plate, and the position of the side-thrust cylinder can also be adjusted.

[0016] As a further description of the above technical solution:

[0017] A plurality of limiting holes are arranged at the edge of the lower machine adapter plate, a sliding sleeve is arranged in each of the limiting holes, a positioning guide column is slidably arranged in each of the sliding sleeves, and the upper ends of the positioning guide columns are fixedly connected to the upper machine adapter plate;

[0018] Furthermore, a stable up-and-down movement relationship is formed between the upper machine adapter plate and the lower machine adapter plate through the positioning guide pins, thereby ensuring that the hot-pressed parts are always fixed in the same position, thereby improving the yield rate of the hot-pressed parts.

[0019] As a further description of the above technical solution:

[0020] Both sides of the lower machine adapter plate are provided with adjustment mounting grooves, and the adjustment mounting grooves are used to fix the lower machine adapter plate on the hot press machine;

[0021] Furthermore, the mounting groove is a rectangular groove, which is convenient for adjusting the position of the lower machine platform adapter plate.

[0022] As a further description of the above technical solution:

[0023] The lower mold is provided with a groove matching with the hot pressing part;

[0024] Furthermore, the groove enables the hot pressed part to fit the lower mold without displacement, thereby ensuring the yield rate and plastic shaping effect of the hot pressed part produced by the hot pressing process.

[0025] As a further description of the above technical solution:

[0026] A plurality of suction cups are arranged on the lower mold, each of which is used to adsorb the hot pressing part on the top of the lower mold, and each of which is connected to a vacuum pump;

[0027] Furthermore, the vacuum pump uses the pipeline to make the suction cup absorb the hot-pressed part so that it will not shift after being fixed in the lower mold, thereby improving product quality.

[0028] As a further description of the above technical solution:

[0029] The temperature sensor is connected to a temperature relay via a data line;

[0030] Furthermore, the temperature relay monitors the temperature data transmitted by the temperature sensor at any time, and then flexibly adjusts the temperature of the heating tube.

[0031] As a further description of the above technical solution:

[0032] The outer periphery of the upper machine platform adapter plate is provided with a synthetic stone insulation block;

[0033] Furthermore, the heat-insulating blocks made of synthetic stone can ensure that heat will not be lost quickly when the hot-pressed parts are heated, and while ensuring a constant temperature, other matching parts will not be affected by the high temperature, thus ensuring the long-term stable operation of the hot-pressed parts production equipment.

[0034] As a further description of the above technical solution:

[0035] The lower mold, the upper mold and the limiting member are interference-fitted to form a fixed molding chamber to shape the hot-pressed part;

[0036] Furthermore, the good cooperation makes the fixed molding chamber remain unchanged at all times, ensuring that the products processed by the hardware and plastic fixtures always have a high yield rate.

[0037] The utility model has the following beneficial effects:

[0038] 1. In the utility model, the heating copper block, the heating tube and the temperature sensor are coordinated to achieve a constant heating temperature, solve the problem of activating glue after the product is assembled with AB glue, and achieve a product that maintains a qualified shape and obtains plastic molding.

[0039] 2. The utility model solves the problem of defective products due to step difference caused by AB glue not being activated after the hardware and plastic middle frame of the product are glued and left to solidify, thereby reducing the defective rate and the production cost.

[0040] 3. In the utility model, the side push cylinder is designed to be easy for employees to take and put products, preventing people from getting scalded. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 A side view of a plastic jig proposed by the utility model;

[0042] Figure 2 This is a front view of a plastic jig proposed by the utility model;

[0043] Figure 3 The utility model is a schematic diagram of a slide rail of a plastic fixture.

[0044] Legend:

[0045] 1. Upper machine adapter plate; 2. Lower machine adapter plate; 3. Upper die; 4. Lower die; 5. Side push cylinder; 6. Connectors; 7. Heating copper block; 8. Heating tube; 9. Thermometer; 10. Limiting piece; 11. Hot pressing piece; 12. Mounting angle; 13. Limiting hole; 14. Sliding sleeve; 15. Positioning guide column; 16. Adjustment mounting slot; 17. Suction cup; 18. Insulation block. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0047] Reference Figure 1-Figure 3, an embodiment provided by the utility model: a plastic jig, including an upper machine adapter plate 1 and a lower machine adapter plate 2, an upper mold 3 is arranged at the bottom of the upper machine adapter plate 1, a lower mold 4 is arranged at the top of the lower machine adapter plate 2, a plurality of side push cylinders 5 are arranged at the bottom of the upper machine adapter plate 1 and in the circumference of the upper mold 3, the driving ends of the plurality of side push cylinders 5 are all facing the upper mold 3, and the driving ends of the plurality of side push cylinders 5 are all provided with connectors 6, and the heating tube 8 generates heat, and the activation of AB is completed through the thermal conductivity of the heating copper block 7, and its solidification is accelerated to maintain the normal shape of the product. The temperature sensor 9 can transmit a signal to the machine, and the machine can sense the temperature of the heating copper block 7, and the temperature relay of the machine can realize the temperature stability of the control heating tube 8. Through the profiling of the lower mold 4 and the interference pressing of the upper mold 3 and the frame heating copper block 7, the shaping of the hardware and plastic of the product is realized, and the pressing and bonding after the activation of the AB glue is realized, so that the product maintains the normal shape of the product. The suction cup 17 of the lower mold 4 sucks air to fix the product, accurately position it, and also plays a fool-proof role to prevent the product from being crushed and scrapped due to not being put in place. A heating copper block 7 is arranged on the side of the connecting piece 6 close to the upper mold 3. A heating tube 8 runs through the heating copper block 7. A temperature sensor 9 is arranged in the heating copper block 7 and on one side of the heating tube 8. A hot pressing piece 11 is arranged between the upper mold 3 and the lower mold 4; the upper machine adapter plate 1 drives the upper mold 3 to approach the lower mold 4, and a hot pressing piece 11 is arranged between the upper mold 3 and the lower mold 4. At the same time, the side push cylinder 5 pushes the heating copper block 7 through the connecting piece 6, and the heating copper block 7 exerts pressure on the hot pressing The piece 11 is heated to activate the AB glue in the hot-pressed piece 11, ensuring the stable combination of the hardware and the plastic product. The heating tube 8 in the heated copper block 7 cooperates with the thermometer 9 to accurately and constantly adjust the temperature of the heated copper block 7, so that the hardware and plastic plastic jig can produce hot-pressed pieces 11 with a high yield rate. Through the cooperation of this hardware and plastic plastic jig mechanism and the hot pressing machine, the heat conduction and pressure holding after the AB glue assembly process of the flat hardware back shell and the flat plastic middle frame is realized, so as to achieve the purpose of activating, dispersing, accelerating the curing of the AB glue and maintaining the qualified plastic shape of the product, and completing the hot pressing process of the flat plate.

[0048] A limiting member 10 is provided on one side of the heating copper block 7 close to the upper mold 3. The limiting member 10 is used for accurate positioning between the hot pressing part 11 and the upper mold 3. The limiting member 10 and the heating copper block 7 are integrally formed, which can ensure that the hot pressing part 11 and the lower mold 4 are accurately aligned, and at the same time ensure that the hot pressing part 11 is fully and accurately heated. The relationship between the heating tube 8 and the heating copper block 7: the heating tube 8 plays a heating role and is a heat source. The heating copper block 7 is brass, which has the property of thermal conductivity and plays a role of heat conduction. It is the heat transmitter of the heating tube 8. The relationship between the thermometer 9, the heating tube 8 and the heating copper block 7: the thermometer 9 can realize the monitoring of the heat of the heating copper block 7 and the feedback signal, and together with the temperature relay of the hot press machine, the temperature stability of the heating copper block 7 and the heating tube 8 is achieved.

[0049] Mounting angles 12 are provided on both sides of the side thrust cylinder 5, and the mounting angles 12 are fixedly connected to the upper machine platform adapter plate 1. The mounting angles 12 fix the side thrust cylinder 5 on the upper machine platform adapter plate 1, and can also adjust the position of the side thrust cylinder 5.

[0050] A plurality of limiting holes 13 are arranged at the edge of the lower machine adapter plate 2, and a sliding sleeve 14 is arranged in the limiting holes 13, and a positioning guide column 15 is slidably arranged in the sliding sleeve 14, and the upper ends of the positioning guide columns 15 are fixedly connected to the upper machine adapter plate 1, and a stable up and down movement relationship is formed between the upper machine adapter plate 1 and the lower machine adapter plate 2 through the positioning guide columns 15, thereby ensuring that the hot-pressed part 11 is always fixed in the same position, thereby improving the yield rate of the hot-pressed part 11.

[0051] Adjustment mounting grooves 16 are provided on both sides of the lower machine adapter plate 2. The adjustment mounting grooves 16 are used to fix the lower machine adapter plate 2 on the hot press machine. The adjustment mounting grooves 16 are rectangular grooves, which are convenient for adjusting the position of the lower machine adapter plate 2.

[0052] The lower mold 4 is provided with a groove matching the hot pressing piece 11 , and the groove enables the hot pressing piece 11 to fit the lower mold 4 without displacement, thereby ensuring the yield rate and plastic shaping effect of the hot pressing process of the hot pressing piece 11 .

[0053] A plurality of suction cups 17 are arranged on the lower mold 4, and the suction cups 17 are all used to adsorb the hot-pressed part 11 on the top of the lower mold 4. The suction cups 17 are all connected to a vacuum pump, and the vacuum pump enables the suction cups 17 to adsorb the hot-pressed part 11 through pipelines to ensure that it will not shift after being fixed on the lower mold 4, thereby improving product quality.

[0054] The temperature sensor 9 is connected to a temperature relay via a data line, and the temperature relay monitors the temperature data transmitted by the temperature sensor 9 at any time, and then flexibly adjusts the temperature of the heating tube 8.

[0055] A synthetic stone insulation block 18 is arranged on the outer periphery of the upper machine adapter plate 1. The insulation block 18 made of synthetic stone can ensure that heat will not be lost quickly when the hot pressing part 11 is heated, and at the same time ensure that the temperature is constant, other matching parts will not be affected by the high temperature, thereby ensuring the long-term stable operation of the hot pressing part 11 production equipment. The material of the insulation block 18 is synthetic stone, which is resistant to high temperatures and plays a role in isolating the temperature, so that the heat will not be conducted to other parts.

[0056] The interference fit between the lower mold 4, the upper mold 3 and the limiter 10 forms a fixed molding chamber to shape the hot pressing part 11. The good fit makes the fixed molding chamber remain unchanged at all times, ensuring that the products processed by the hardware and plastic fixtures always have a high yield rate.

[0057] Working principle: Put the flat metal back shell and the flat plastic middle frame component products into the lower mold 4, start the hot press machine to realize the upper machine adapter plate 1 for hot pressing process, the upper mold 3 falls to a fixed position, the side push cylinder 5 is started, side push, and the pressure is maintained for 50S to complete the hot pressing process, the side push cylinder 5 is reset, and after the upper mold 3 is lifted, the product is taken out and placed on the water drawer to complete the hot pressing process.

[0058] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A plastic jig, comprising an upper machine adapter plate (1) and a lower machine adapter plate (2), characterized in that: An upper mold (3) is arranged at the bottom of the upper machine adapter plate (1), a lower mold (4) is arranged at the top of the lower machine adapter plate (2), a plurality of side thrust cylinders (5) are arranged at the bottom of the upper machine adapter plate (1) and in the circumferential direction of the upper mold (3), the driving ends of the plurality of side thrust cylinders (5) are all facing the upper mold (3), the driving ends of the plurality of side thrust cylinders (5) are all arranged with connecting parts (6), a heating copper block (7) is arranged on the side of the connecting parts (6) close to the upper mold (3), a heating tube (8) is passed through the heating copper block (7), a temperature sensor (9) is arranged in the heating copper block (7) and on one side of the heating tube (8), and a hot pressing part (11) is arranged between the upper mold (3) and the lower mold (4).

2. A plastic jig according to claim 1, characterized in that: A limiting member (10) is provided on one side of the heating copper block (7) close to the upper mold (3), and the limiting member (10) is used for accurate positioning between the hot pressing member (11) and the upper mold (3).

3. A plastic jig according to claim 1, characterized in that: Both sides of the side thrust cylinder (5) are provided with mounting angles (12), and the mounting angles (12) are fixedly connected to the upper machine platform adapter plate (1).

4. A plastic jig according to claim 1, characterized in that: A plurality of limiting holes (13) are arranged at the edge of the lower machine adapter plate (2), a sliding sleeve (14) is arranged in each of the limiting holes (13), a positioning guide column (15) is slidably arranged in each of the sliding sleeves (14), and the upper ends of the positioning guide columns (15) are fixedly connected to the upper machine adapter plate (1).

5. A plastic jig according to claim 1, characterized in that: Adjustment mounting grooves (16) are provided on both sides of the lower machine platform adapter plate (2), and the adjustment mounting grooves (16) are used to fix the lower machine platform adapter plate (2) on the hot press platform.

6. A plastic jig according to claim 1, characterized in that: The lower mold (4) is provided with a groove which matches the hot pressing piece (11).

7. A plastic jig according to claim 6, characterized in that: A plurality of suction cups (17) are arranged on the lower mold (4), and the suction cups (17) are used to adsorb the hot pressing part (11) on the top of the lower mold (4). The suction cups (17) are connected to a vacuum pump.

8. A plastic jig according to claim 1, characterized in that: The temperature sensor (9) is connected to a temperature relay via a data line.

9. A plastic jig according to claim 1, characterized in that: A synthetic stone heat-insulating block (18) is arranged on the outer periphery of the upper machine platform adapter plate (1).

10. A plastic jig according to claim 1, characterized in that: The lower mold (4), the upper mold (3) and the limiting member (10) are interference-fitted to form a fixed molding chamber to shape the hot-pressed member (11).

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