High-efficiency adhesive curing time measuring device

Abstract

The invention relates to the technical field of gelation time testing devices of thermosetting plastics, in particular to an efficient glue curing time measuring device which comprises a detector, a shell is fixedly connected to the detector, and a powder grinding mechanism is arranged at the position, close to the top end, in the shell and used for grinding a sample into powder; a filtering mechanism is arranged close to the middle position in the shell and is used for filtering a powder sample; a sampling mechanism is arranged at the bottom end of the shell and is used for sampling a powder sample. The grinding mechanism is arranged to be matched with the filtering mechanism and the sampling mechanism, so that the steps of grinding, filtering and weighing are automatic, manual operation of workers is not needed, the number of manual operation steps of the whole test is small, only the most critical operation of heating stirring and glue curing time judgment is needed, repeated tests are convenient, sampling is accurate, and the working efficiency is high. On the premise of ensuring the test accuracy, a large number of manual operation steps are saved, the detection efficiency is effectively improved, and the labor is saved.

Description

Technical Field

[0001] The invention relates to the technical field of thermosetting plastic gelation time testing devices, in particular to a high-efficiency glue curing time measuring device. Background Art

[0002] Epoxy molding compound is mainly used for packaging electronic components and integrated circuits. It is generally composed of epoxy resin, phenolic resin, inorganic filler, catalyst and other additives. Epoxy molding compound is a thermosetting plastic. The curing time of the glue is an important indicator in the production process. This indicator mainly reflects the curing speed of epoxy molding compound at a specific temperature.

[0003] The glue curing time measuring device is an essential measuring equipment for copper clad laminate manufacturers. The glue curing time test can be completed by grinding, sieving, weighing, heating, melting, stirring and other operating steps of the epoxy molding compound until it reaches the critical point.

[0004] However, in the existing detection, except for the heating process, other steps need to be manually operated by the staff, which is time-consuming and labor-intensive, and is not conducive to automatic and efficient detection. In view of this, we propose an efficient glue curing time measurement device. Summary of the invention

[0005] The purpose of the present invention is to provide a highly efficient device for measuring the curing time of glue, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An efficient adhesive curing time measuring device comprises a detector, a housing is fixedly connected to the detector, a grinding mechanism is arranged near the top of the housing, and is used to grind the sample into powder;

[0008] A filtering mechanism is provided in the middle of the housing for filtering powder samples;

[0009] The bottom end of the shell is provided with a sampling mechanism for sampling powder samples.

[0010] Preferably, the grinding mechanism comprises a gear ring, which is rotatably mounted in the housing, a rotating ring is fixedly connected to the top of the gear ring, a grinding block is fixedly connected to the center of the rotating ring, and a connecting bin is fixedly connected to the bottom of the rotating ring.

[0011] Preferably, a feed pipe is fixedly connected to the top of the shell, a mounting seat is threadedly connected to the surface of the feed pipe, a sliding block is slidably installed through the top of the mounting seat, a pressure block is fixedly connected to the bottom end of the sliding block, a compression spring is fixedly connected to the top of the pressure block, and the other end of the compression spring is fixedly connected to the inner top of the mounting seat.

[0012] Preferably, a blowing port is fixedly connected to the top end of the shell, and there is no contact between the bottom end of the feed pipe and the top end of the grinding block.

[0013] Preferably, the sample selection mechanism comprises a measuring cylinder, which is fixedly mounted on the bottom end of the shell, on which a solenoid valve is fixedly mounted, on which a viewing glass is fixedly mounted, and on which a scale is provided.

[0014] Preferably, a sealing block is detachably connected to the bottom end of the measuring cylinder, a screw is threadedly connected through the sealing block, an adjusting block is rotatably mounted on the top end of the screw, and the adjusting block is slidably connected to the inner wall of the measuring cylinder.

[0015] Preferably, the filtering mechanism comprises a vibration table, the vibration table is slidably connected to the shell, a vibration spring is provided between the vibration table and the shell, and a filter is fixedly mounted on the vibration table.

[0016] Preferably, a rotating roller is rotatably installed in the shell, a motor is fixedly connected to the top of the rotating roller, a gear and an eccentric wheel are respectively fixedly connected to the surface of the rotating roller, the gear and the gear ring are meshed and connected, and the eccentric wheel is in contact with the vibration table.

[0017] Preferably, a heating unit is fixedly mounted on the detector, and a heating block is mounted on the heating unit.

[0018] By means of the above technical solution, the present invention provides an efficient adhesive curing time measuring device having at least the following beneficial effects:

[0019] (1) The present invention automates the steps of grinding, filtering and weighing by arranging a grinding mechanism in conjunction with a filtering mechanism and a sampling mechanism, and does not require manual operation by staff, so that the entire test has fewer manual operation steps, and only the most critical operations of heating and stirring and judging the curing time of the glue are required. In addition, repeated tests are convenient and sampling is accurate. Under the premise of ensuring the accuracy of the test, a large number of manual operation steps are saved, which effectively improves the efficiency of the test and saves labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is a schematic structural diagram of the housing and its connecting parts of the present invention;

[0023] Figure 3 It is a schematic diagram of the internal structure of the housing of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the power part of the present invention;

[0025] Figure 5 It is a schematic diagram of the structure of the grinding mechanism of the present invention;

[0026] Figure 6 It is a partial cross-sectional schematic diagram of the grinding mechanism of the present invention;

[0027] Figure 7 It is a partial structural schematic diagram of the grinding mechanism of the present invention;

[0028] Figure 8 It is a schematic diagram of the structure of the filtering mechanism of the present invention;

[0029] Fig. 9 It is a schematic diagram of the structure of the sample selection mechanism of the present invention;

[0030] Fig.10 It is a partial structural schematic diagram of the sample selection mechanism of the present invention.

[0031] In the figure: 1. detector; 2. housing; 3. grinding mechanism; 4. filtering mechanism; 5. sampling mechanism; 6. motor; 7. rotating roller; 8. gear; 9. eccentric wheel; 10. heating part; 11. heating block;

[0032] 31. Gear ring; 32. Rotating ring; 33. Grinding block; 34. Connecting bin; 35. Feed pipe; 36. Mounting seat; 37. Sliding block; 38. Pressing block; 39. Pressing spring; 310. Air outlet;

[0033] 41. Vibration table; 42. Filter; 43. Vibration spring;

[0034] 51. Measuring cylinder; 52. Solenoid valve; 53. Observation glass; 54. Scale; 55. Sealing block; 56. Screw; 57. Adjusting block. DETAILED DESCRIPTION

[0035] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0036] See also Figure 1-Figure 10 , an efficient glue curing time measuring device, including a detector 1, the detector 1 is used to control the working switches of various components in the device, and the operation of the device is more convenient through integration. A housing 2 is fixedly connected to the detector 1, a rotating roller 7 is rotatably installed in the housing 2, and a motor 6 is fixedly connected to the top of the rotating roller 7. The motor 6 and the rotating roller 7 are the power mechanism of the entire device, and provide power for the operation of the device. A grinding mechanism 3 is arranged near the top of the housing 2, which is used to grind and crush the epoxy molding plastic into powder that meets the test requirements.

[0037] See also Figure 5-Figure 7 The grinding mechanism 3 includes a ring gear 31, which is rotatably connected to the housing 2. The ring gear 31 is meshed with a gear 8, and the gear 8 is fixedly mounted on the rotating roller 7, so that when the motor 6 is working, it can drive the rotating roller 7 to rotate, and the rotation of the rotating roller 7 drives the gear 8 to rotate synchronously. The gear 8 drives the ring gear 31 to rotate by meshing with the ring gear 31.

[0038] A rotating ring 32 is fixedly connected to the gear ring 31. The rotating ring 32 has a hollow structure and will not block the downward movement of the powder. A grinding block 33 with a rough top surface is fixedly connected to the center of the rotating ring 32, which is used to grind the epoxy molding compound and grind the raw material into powder. A connecting bin 34 is fixedly connected to the bottom end of the gear ring 31. The connecting bin 34 is a hollow truncated cone structure, so that the powder falls into the connecting bin 34 to prevent the powder from being too scattered when falling.

[0039] A feed pipe 35 is fixedly installed at the top of the housing 2 for feeding epoxy molding compound, which is convenient for grinding the raw materials into powder. The inside of the feed pipe 35 is a hollow structure, and the outer surface is provided with threads. The feed pipe 35 is detachably connected to a mounting seat 36 through the threads on the outer surface, and a sliding block 37 is slidably installed through the top of the mounting seat 36. A pressing block 38 is fixedly connected to the bottom of the sliding block 37. A compression spring 39 is fixedly connected between the top of the pressing block 38 and the inner top of the mounting seat 36, and the pressing block 38 is adapted to the inner wall of the feed pipe 35. When the mounting seat 36 is installed on the feed tube 35, as the mounting seat 36 is continuously moved downward, the pressing block 38 contacts the sample, so that the sliding block 37 moves upward along the mounting seat 36, continuously squeezing the compression spring 39. After the mounting seat 36 is installed, under the action of the restoring force of the compression spring 39, the pressing block 38 presses the sample tightly onto the grinding block 33, providing pressure for the grinding block 33 to grind the sample, so that the sample is more stable and fine when ground.

[0040] There is a certain gap between the bottom end of the feed pipe 35 and the grinding block 33, so that the grinding block 33 will not damage the feed pipe 35, and the powder polished will not remain in the feed pipe 35 to affect the subsequent grinding. A blowing port 310 is fixedly installed through the top of the shell 2. The blowing port 310 is located at the top of the grinding block 33 and faces the gap between the feed pipe 35 and the grinding block 33. The blowing port 310 can blow out cold air when the grinding block 33 is working, and the friction heat generated by the grinding block 33 can be cooled down, and the powder can be blown into the connecting bin 34 to prevent the powder from accumulating on the grinding block 33.

[0041] See also Figure 8 The housing 2 is provided with a filter mechanism 4, which includes a vibration table 41. The vibration table 41 and the housing 2 are slidably connected by a vibration spring 43, and the vibration table 41 is in contact with the eccentric wheel 9 on one side of the vibration spring 43. The eccentric wheel 9 and the rotating roller 7 are fixedly connected, so that the rotating roller 7 can drive the eccentric wheel 9 to rotate synchronously when working. Since the eccentric wheel 9 is in contact with the vibration table 41, the vibration table 41 continuously vibrates laterally under the action of the vibration spring 43. A filter screen 42 is fixedly installed on the vibration table 41. The vibration of the vibration table 41 drives the filter screen 42 to vibrate, so that the powder on the filter screen 42 is quickly filtered.

[0042] See also Figure 9-10 The bottom of the housing 2 is provided with a sampling mechanism 5, which includes a measuring cylinder 51, which is fixedly mounted at the bottom of the housing 2. A solenoid valve 52 is fixedly mounted at the top of the measuring cylinder 51 to control the feeding of powder. An observation glass 53 is provided on the surface of the measuring cylinder 51 to observe the state of the powder in the measuring cylinder 51 to avoid adhesion, voids and other phenomena that affect the accuracy of sampling. A scale 54 is provided on the surface of the measuring cylinder 51 at one side of the observation glass 53 to accurately control the sampling amount of the measuring cylinder 51. A sealing block 55 is detachably mounted at the bottom of the measuring cylinder 51, and the detachable mounting method is, for example, a snap-on connection. A screw rod 56 is threadedly connected through the sealing block 55, and an adjusting block 57 is rotatably installed on the top of the screw rod 56. The adjusting block 57 is slidably connected to the inner wall of the measuring cylinder 51, so that rotating the screw rod 56 can drive the adjusting block 57 to move along the inner wall of the measuring cylinder 51. The position of the adjusting block 57 can be observed through the observation glass 53, and the position of the adjusting block 57 in the measuring cylinder 51 can be accurately controlled through the indicators of the adjusting block 57 and the scale 54, thereby controlling the sampling volume of the measuring cylinder 51 and achieving the control of the sampling weight.

[0043] See also Figure 1 The detector 1 is also provided with a heating part 10 and a heating block 11. The heating part 10 is used to provide a stable heat source for the heating block 11. A groove is provided at the top of the heating block 11 for detecting the curing time of the powder.

[0044] An efficient glue curing time measuring device, its working principle is:

[0045] The epoxy molding material to be tested is placed inside the feed tube 35, and then the mounting seat 36 is installed on the feed tube 35, so that the pressing block 38 is in contact with the epoxy molding material. Under the pressure of the epoxy molding material, the sliding block 37 moves up along the mounting seat 36 to compress the compression spring 39. Under the elastic force of the compression spring 39, the pressing block 38 provides stable pressure on the epoxy molding material, so that the epoxy molding material is in close contact with the grinding block 33.

[0046] The motor 6 starts, and the motor 6 drives the rotating roller 7 to rotate. When the rotating roller 7 rotates, it drives the gear 8 and the eccentric wheel 9 to rotate synchronously. The gear 8 drives the gear ring 31 to rotate through the meshing action with the gear ring 31. The gear ring 31 drives the rotating ring 32 to rotate synchronously. The rotating ring 32 drives the grinding block 33 to rotate, so that the grinding block 33 can rotate and rub with the epoxy molding plastic, thereby grinding the epoxy molding plastic into powder. While the grinding block 33 is working, the air outlet 310 blows cold air on the contact surface between the grinding block 33 and the epoxy molding plastic, which can blow the ground powder into the interior of the connecting bin 34, and can also cool the friction point to a certain extent, so as to avoid the performance of the epoxy molding plastic being changed due to excessively high temperature during friction, which affects the test results.

[0047] The powdered material from the grinding falls on the center of the filter screen 42 through the connecting bin 34, and the powdered material is filtered through the filter screen 42. At the same time, when the eccentric wheel 9 rotates, it will contact the vibration table 41, thereby causing the vibration table 41 to be displaced. The vibration table 41 is connected with a vibration spring 43 so that the vibration table 41 is always in contact with the eccentric wheel 9, so that the vibration table 41 continuously vibrates horizontally. The vibration of the vibration table 41 drives the filter screen 42 to vibrate, thereby improving the efficiency of filtering the powdered material through the filter screen 42, and the powdered material falls on the bottom of the housing 2 after being filtered.

[0048] According to the volume of the powder to be sampled, the screw 56 is rotated, and the screw 56 rotates to drive the adjustment block 57 to move along the measuring cylinder 51. Since the adjustment block 57 and the screw 56 are rotatably connected, the adjustment block 57 can move up and down along the inner wall of the measuring cylinder 51 without rotating. The top of the adjustment block 57 and the scale 54 are observed through the observation glass 53, so that the volume sampled by the measuring cylinder 51 can be determined. After determining the sampling volume, the electromagnetic valve 52 is opened, and the powder with uniform density falls into the inside of the measuring cylinder 51 until the measuring cylinder 51 is filled and then the electromagnetic valve 52 is closed. During sampling, the observation glass 53 can be used for observation. In the event of uneven material feeding caused by bonding, the material feeding can be assisted by vibrating the housing 2. Since the powder is a uniform material, the weight of the powder can be obtained when the volume is determined, without weighing. After sampling, the material in the measuring cylinder 51 can be taken out by removing the sealing block 55, so that the powder is transferred to the groove of the heating block 11 for detection. It should be noted that before the powder is added into the groove of the heating block 11 , the heating block 11 needs to be heated in advance by the heating unit 10 until the temperature inside the heating block 11 is stable.

[0049] Start timing when all the powder in the groove of the heating block 11 is melted, and stir the melt with a stirrer. When the melt begins to thicken, while stirring, raise the stirrer about 10mm from the melt every 2-3 seconds. If the wire drawn during the raising becomes brittle and even breaks and can no longer be drawn from the melt into a wire, stop timing and record the time, accurate to 1 second. This time is the gelation time of the sample.

[0050] When the test is conducted in the above manner, there are fewer manual operation steps, and only the most critical operation of judging the glue curing time is required. In addition, repeated tests are convenient and sampling is accurate. While ensuring the accuracy of the test, a large number of manual operation steps are saved, effectively improving the efficiency of the test and saving labor.

[0051] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An efficient adhesive curing time measuring device, characterized in that: The invention comprises a detector (1), the detector (1) is fixedly connected to a housing (2), and a grinding mechanism (3) is arranged at the top end of the housing (2) for grinding a sample into powder; A filtering mechanism (4) is provided in the middle of the housing (2) for filtering powder samples; The bottom end of the housing (2) is provided with a sampling mechanism (5) for sampling powder samples.

2. The high-efficiency adhesive curing time measuring device according to claim 1, characterized in that: The grinding mechanism (3) comprises a gear ring (31), the gear ring (31) is rotatably mounted in the housing (2), a rotating ring (32) is fixedly connected to the top of the gear ring (31), a grinding block (33) is fixedly connected to the center of the rotating ring (32), and a connecting bin (34) is fixedly connected to the bottom of the rotating ring (32).

3. The high-efficiency adhesive curing time measuring device according to claim 2, characterized in that: A feed pipe (35) is fixedly connected to the top end of the shell (2), a mounting seat (36) is threadedly connected to the surface of the feed pipe (35), a sliding block (37) is slidably installed through the top end of the mounting seat (36), a pressure block (38) is fixedly connected to the bottom end of the sliding block (37), a clamping spring (39) is fixedly connected to the top end of the clamping block (38), and the other end of the clamping spring (39) is fixedly connected to the inner top end of the mounting seat (36).

4. The high-efficiency adhesive curing time measuring device according to claim 3 is characterized in that: A blowing port (310) is fixedly connected to the top end of the shell (2), and there is no contact between the bottom end of the feed pipe (35) and the top end of the grinding block (33).

5. The high-efficiency adhesive curing time measuring device according to claim 4, characterized in that: The sample selection mechanism (5) comprises a measuring cylinder (51), the measuring cylinder (51) is fixedly mounted on the bottom end of the housing (2), a solenoid valve (52) is fixedly mounted on the measuring cylinder (51), an observation glass (53) is fixedly mounted on the surface of the measuring cylinder (51), and a scale (54) is provided on the surface of the measuring cylinder (51).

6. The high-efficiency adhesive curing time measuring device according to claim 5, characterized in that: The bottom end of the measuring cylinder (51) is detachably connected with a sealing block (55), a screw rod (56) is threadedly connected through the sealing block (55), an adjusting block (57) is rotatably mounted on the top end of the screw rod (56), and the adjusting block (57) is slidably connected to the inner wall of the measuring cylinder (51).

7. The high-efficiency adhesive curing time measuring device according to claim 1, characterized in that: The filtering mechanism (4) comprises a vibration table (41), the vibration table (41) is slidably connected to the housing (2), a vibration spring (43) is provided between the vibration table (41) and the housing (2), and a filter screen (42) is fixedly mounted on the vibration table (41).

8. The high-efficiency adhesive curing time measuring device according to claim 1, characterized in that: A rotating roller (7) is rotatably mounted in the housing (2); a motor (6) is fixedly connected to the top of the rotating roller (7); a gear (8) and an eccentric wheel (9) are respectively fixedly connected to the surface of the rotating roller (7); the gear (8) is meshingly connected to the gear ring (31); and the eccentric wheel (9) is in contact with the vibration table (41).

9. The high-efficiency adhesive curing time measuring device according to claim 1, characterized in that: A heating unit (10) is fixedly mounted on the detector (1), and a heating block (11) is mounted on the heating unit (10).

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