Feeding assembly for epoxy molding compound production

Abstract

The utility model discloses a feeding assembly for epoxy molding compound production, which relates to the field of electronic components and comprises a conveying belt and an anti-blocking feeding mechanism, the anti-blocking feeding mechanism comprises a feeding funnel, a feeding pipe and an air delivery pipe, the feeding funnel is arranged, feeding is performed in a natural falling mode, the feeding assembly is simple, convenient and low in cost, and when raw materials are blocked, the feeding pipe is not blocked. And the blocked gas conveying pipe is flushed through by spraying high-pressure gas, so that the raw materials can flow down smoothly. The action is only started during blockage, so that the use cost is very low. And the splash-proof sealing cover and the blocking and scraping plate are arranged to prevent the plastic raw materials from splashing out, and the blocking and scraping plate is movable, so that normal rotation of the conveying belt is prevented from being influenced or even blocked.

Description

Technical Field

[0001] The utility model relates to the field of plastic parts production, in particular to a feeding component for producing epoxy molding plastics. Background Art

[0002] During the production of epoxy molding compounds, the raw materials need to be transported and fed to the production equipment. Since the raw materials of epoxy molding compounds are mostly in granular form, when the feeding channel changes from wide to narrow during feeding, the raw materials of epoxy molding compounds may be blocked in the narrower channel.

[0003] Therefore, in order to prevent this situation, the most common feeding method of feeders is to use screw conveying to force feeding. Another common method is to install a vibration motor in a narrow channel to promote the smooth passage of epoxy molding compound raw materials through the feeding channel by vibration. However, both methods require the use of high-power motor drive and consume electricity all the time, resulting in high equipment and operating costs. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a feeding assembly for producing epoxy molding compound, so as to solve the technical problem of how to solve the blockage of plastic raw materials in the feeding channel at a low cost in the prior art.

[0005] Based on the above purpose, the utility model provides a feeding assembly for epoxy molding compound production, including a conveyor belt for conveying plastic raw materials and an anti-blocking feeding mechanism, wherein the anti-blocking feeding mechanism includes:

[0006] A feeding hopper installed below the conveyor belt outlet side;

[0007] A feeding pipe fixedly connected to the bottom of the feeding funnel and connected to the feeding funnel, wherein the other end of the feeding pipe is connected to the feed port of the epoxy molding compound production equipment;

[0008] An air delivery pipe is fixedly connected to the side wall of the feeding pipe and communicated with the feeding pipe, and a solenoid valve is also arranged on the air delivery pipe.

[0009] Furthermore, a splash-proof sealing cover is provided on the top of the feeding funnel, and the splash-proof sealing cover is detachably connected to the feeding funnel, and a gap is left between the splash-proof sealing cover and the conveyor belt.

[0010] Furthermore, the feeding funnel is wide at the top and narrow at the bottom, with the upper end being a square opening that is convenient for feeding, and the lower end being a circular opening that cooperates with the feeding tube.

[0011] Furthermore, a gap is left between the upper end of the feeding funnel and the conveyor belt, and a scraper plate is provided in the gap. The upper end of the scraper plate is against the conveyor belt, and the lower end of the scraper plate is movably connected to the feeding funnel.

[0012] Furthermore, a movable groove is provided in the side wall of the feeding funnel below the conveyor belt, the lower end of the scraper plate is slidably connected in the movable groove, and a return spring is also provided in the movable groove below the scraper plate.

[0013] Furthermore, the other end of the air supply pipe is connected to an external air source, and the air supply pipe is also connected to an air booster pump.

[0014] The advantages of the utility model are: 1. By setting a feeding funnel, feeding is carried out in a natural falling manner. Compared with screw forced feeding, the structure is simple, convenient and low in cost. The upper end of the feeding funnel is a wide square opening for collecting raw materials brought by transportation, and the lower end is set as a narrow round opening, which is convenient for accurately entering the feed port of the production equipment through the feeding pipe.

[0015] 2. Set up an air pipe on the feeding pipe and install a solenoid valve. When the raw material is blocked, the blocked air pipe can be cleared by spraying high-pressure gas, so that the raw material can flow smoothly. This action is only activated when it is blocked and does not work at other times, so the cost of use is very low.

[0016] 3. A splash-proof sealing cover and a scraper are set to prevent the plastic raw materials from splashing out, and the scraper is movable to avoid affecting or even blocking the normal rotation of the conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structural principle of the utility model.

[0019] Figure 2 It is a side view of the utility model.

[0020] Figure 3 It is a schematic diagram of the internal structure of the utility model.

[0021] Figure 4 It is a schematic diagram of the structure after the splash-proof sealing cover of the utility model is opened.

[0022] Figure 5 for Figure 3 Enlarged view of part A.

[0023] Marked in the figure: 101, conveyor belt, 102, feeding funnel, 103, feeding pipe, 104, splash-proof sealing cover, 105, air pipe, 106, solenoid valve, 107, movable groove, 108, return spring, 109, scraper.

[0024] Specific implementation method and principle

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0026] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0027] The first aspect of the utility model is as follows Figure 1 and Figure 2 As shown, the feeding assembly generally includes two parts, namely a conveyor belt 101 for conveying plastic raw materials and an anti-blocking feeding mechanism, wherein the conveyor belt 101 is inclined upward (the outlet side of the conveyor belt 101 is inclined upward), and the blocking feeding mechanism is composed of a feeding funnel 102, a feeding pipe 103 and an air pipe 105.

[0028] The feeding funnel 102 is installed below the outlet side of the conveyor belt 101. The feeding funnel 102 is wide at the top and narrow at the bottom. The upper end is a square opening that is convenient for feeding, and the lower end is a circular opening that cooperates with the feeding tube 103. The upper end of the feeding funnel 102 is a wide square opening that is convenient for collecting raw materials from the conveyor belt 101, and the lower end is set to a narrow circular opening, which is convenient for accurately entering the feed port of the production equipment through the feeding tube 103. The feeding funnel 102 is fixedly connected to the bottom of the feeding funnel 102, and the other end of the feeding tube 103 is connected to the feed port of the epoxy molding compound production equipment. The feeding funnel 102 and the feeding tube 103 are connected from top to bottom, so the feeding of this scheme adopts a natural falling method of feeding, which is simple, convenient and low in cost compared to the screw forced feeding structure.

[0029] The key point is that the air pipe 105 is fixedly connected to the side wall of the feeding pipe 103 and is connected to the feeding pipe 103, the other end of the air pipe 105 is connected to the external air source, and the air pipe 105 is also connected to an air booster pump (if the external air source can provide enough high pressure by itself, there is no need to install an additional air booster pump). In addition, the air pipe 105 is also provided with a solenoid valve 106.

[0030] When the raw material blocks the feeding pipe 103, the electromagnetic valve 106 is opened, and the gas pipe 105 is cleared by spraying high-pressure gas to allow the raw material to flow smoothly. This action is only started when it is blocked and does not work at other times, so the use cost is very low.

[0031] The opening of the solenoid valve 106 can be set to be manually started by a worker, but in order to respond more promptly, it is best to set a sensor for detection in the feeding hopper 102. For example, a sensor is set at a certain height of the feeding hopper 102. When the raw material blocks the feeding pipe 103, the conveyor belt 101 is still continuously feeding the tree hole plastic raw material into the feeding hopper 102, so the plastic raw material in the feeding hopper 102 will accumulate higher and higher, and finally submerge the sensor, so that the sensor triggers a signal, and then automatically starts the solenoid valve 106, which responds promptly and does not require manual care.

[0032] On the other hand, Figure 3 and Figure 5 As shown, there is a gap between the upper end of the feeding hopper 102 and the conveyor belt 101, and a scraper 109 is provided at the gap. The upper end of the scraper 109 is against the conveyor belt 101, and the lower end of the scraper 109 is movably connected to the feeding hopper 102. The reasons for setting the gap are to avoid strong friction between the feeding hopper 102 and the conveyor belt 101, and to prevent accidents. For example, a bulge appears on the conveyor belt 101. If there is no gap, this bulge will collide with the feeding hopper 102. The purpose of setting the scraper 109 is to prevent some plastic raw materials from sticking to the conveyor belt 101 and being taken away without smoothly entering the feeding hopper 102, and to prevent plastic particles from splashing from the gap when the gas pipe 105 is blocked by spraying high-pressure gas to clear the gas pipe 105.

[0033] Therefore, the scraper plate 109 needs to be movable, and a movable groove 107 is provided in the side wall of the feeding hopper 102 below the conveyor belt 101, and the lower end of the scraper plate 109 is slidably connected in the movable groove 107, and a return spring 108 is also provided in the movable groove 107 below the scraper plate 109. Normally, the scraper plate 109 can smoothly scrape off the plastic particles adhering to the conveyor belt 101, so that the plastic particles can smoothly enter the feeding hopper 102. Moreover, the scraper plate 109 can be retracted into the side wall of the feeding hopper 102 under pressure, so there will be no strong friction between the conveyor belt 101.

[0034] Preferably, Figure 3 and Figure 4 As shown, in order to prevent the plastic particles from splashing out of the gap when the gas pipe 105 is blocked by spraying high-pressure gas, a splash-proof sealing cover 104 is provided on the top of the feeding funnel 102, and the splash-proof sealing cover 104 is detachably connected to the feeding funnel 102, and a gap is left between the splash-proof sealing cover 104 and the conveyor belt 101. The splash-proof sealing cover 104 and the scraper 109 can effectively prevent the plastic raw materials from splashing out. DETAILED DESCRIPTION

[0035] When the feeding assembly is used, the epoxy molding compound raw material is first conveyed from the conveyor belt 101. The conveyor belt 101 is inclined upward, so the epoxy molding compound raw material is conveyed from the conveyor belt 101 to the top and finally falls into the feeding funnel 102. After the epoxy molding compound raw material falls into the feeding funnel 102, it will naturally fall into the feeding pipe 103 by gravity, and then naturally fall into the feeding port of the epoxy molding compound production equipment through the feeding pipe 103.

[0036] When the raw material blocks the feeding pipe 103, the electromagnetic valve 106 opens, and the gas pipe 105 clears the blocked gas pipe 105 by spraying high-pressure gas, so that the raw material can flow down smoothly. This action is only started when it is blocked, and does not work at other times, so the use cost is very low.

[0037] When the air delivery pipe 105 is blocked by spraying high-pressure gas, in order to prevent the epoxy molding compound raw material from splashing out of the feeding funnel 102, a splash-proof sealing cover 104 is provided on the top of the feeding funnel 102, and a gap is left between the upper end of the feeding funnel 102 and the conveyor belt 101, and a scraper plate 109 is provided in the gap.

[0038] When the conveyor belt 101 is conveying raw materials, if some plastic raw materials stick to the conveyor belt 101, the scraper plate 109 can smoothly scrape it off and allow it to smoothly enter the feeding funnel 102. Moreover, the scraper plate 109 can be compressed and retracted into the side wall of the feeding funnel 102. Therefore, if there are protrusions or other conditions on the conveyor belt 101, the scraper plate 109 can be compressed and retracted into the side wall of the feeding funnel 102, and no strong friction will occur between the conveyor belt 101.

[0039] Based on the above, the utility model provides a feeding hopper 102 to feed materials in a natural falling manner. Compared with screw forced feeding, the structure is simple, convenient and low in cost. The upper end of the feeding hopper 102 is a wide square mouth, which is convenient for collecting raw materials from the conveyor belt 101, and the lower end is set as a narrow round mouth, which is convenient for accurately entering the feed port of the production equipment through the feeding pipe 103. An air pipe 105 is set on the feeding pipe 103 and an electromagnetic valve 106 is installed. When the raw material is blocked, the blocked air pipe 105 is flushed by spraying high-pressure gas, so that the raw material can flow smoothly. This action is only activated when it is blocked and does not work at other times, so the cost of use is very low. At the same time, a splash-proof sealing cover 104 and a scraper 109 are set to prevent the plastic raw material from splashing out, and the scraper 109 is movable to avoid affecting or even jamming the normal rotation of the conveyor belt 101.

[0040] A person skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention, including the claims, is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0041] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A feeding assembly for producing epoxy molding compound, comprising a conveyor belt (101) for conveying plastic raw materials and an anti-blocking feeding mechanism, characterized in that: The anti-blocking feeding mechanism comprises: A feeding hopper (102) installed below the outlet side of the conveyor belt (101); A feeding pipe (103) fixedly connected to the bottom of the feeding funnel (102) and in communication with the feeding funnel (102), wherein the other end of the feeding pipe (103) is connected to a feed inlet of an epoxy molding compound production device; An air delivery pipe (105) is fixedly connected to the side wall of the feeding pipe (103) and communicated with the feeding pipe (103); the air delivery pipe (105) is also provided with a solenoid valve (106).

2. A feeding assembly for producing epoxy molding compound according to claim 1, characterized in that: A splash-proof sealing cover (104) is provided on the top of the feeding funnel (102). The splash-proof sealing cover (104) is detachably connected to the feeding funnel (102), and a gap is left between the splash-proof sealing cover (104) and the conveyor belt (101).

3. A feeding assembly for producing epoxy molding compound according to claim 1, characterized in that: The feeding funnel (102) is wide at the top and narrow at the bottom, with the upper end being a square opening that is convenient for feeding, and the lower end being a circular opening that cooperates with the feeding tube (103).

4. A feeding assembly for producing epoxy molding compound according to claim 1 or 2, characterized in that: A gap is left between the upper end of the feeding funnel (102) and the conveyor belt (101), and a scraper plate (109) is provided in the gap. The upper end of the scraper plate (109) abuts against the conveyor belt (101), and the lower end of the scraper plate (109) is movably connected to the feeding funnel (102).

5. A feeding assembly for producing epoxy molding compound according to claim 4, characterized in that: A movable groove (107) is provided in the side wall of the feeding hopper (102) below the conveyor belt (101), the lower end of the scraper plate (109) is slidably connected in the movable groove (107), and a return spring (108) is also provided in the movable groove (107) below the scraper plate (109).

6. A feeding assembly for producing epoxy molding compound according to claim 1, characterized in that: The other end of the air delivery pipe (105) is connected to an external air source, and the air delivery pipe (105) is also connected to an air booster pump.

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