A raw material handling device for injection molding machine

Abstract

The present invention discloses a raw material handling device for an injection molding machine in the field of injection molding production technology, comprising an injection molding machine and a material storage shell, wherein a first hopper is arranged at the upper end of the injection molding machine, comprising a transmission mechanism arranged in the material storage shell; a plurality of push plates, wherein the plurality of push plates are arranged on the transmission mechanism along an inner wall trajectory array of the material storage shell, wherein the transmission mechanism is used to drive the push plates to slide in a counterclockwise circular manner in close contact with the inner wall of the material storage shell; a material inlet; a material outlet; a material discharge mechanism, wherein the material discharge mechanism is used to discharge the raw material on the push plate from the material outlet; and a cleaning mechanism, wherein the cleaning mechanism is used to clean the raw material residue on the push plate; the present invention transports the raw material by means of a push plate whose movement path is mainly in the vertical direction, so that in the process of the equipment transporting the raw material, there is no need to set a certain slope in order to provide friction to the raw material, thereby greatly reducing the space occupied by the equipment and enabling the equipment to better adapt to the factory environment.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding production, in particular to a raw material handling device for an injection molding machine. Background Art

[0002] During the production and use of the injection molding machine, raw materials need to be put into its hopper. The conventional way of putting them in is to manually put the proportioned raw materials into the hopper.

[0003] Due to the structural characteristics of injection molding machines, their hoppers are mostly set at the top. In the process of manually feeding raw materials, it is necessary to use external objects to carry the raw materials to a high place, and then put the raw materials into the hopper. This process has low safety and is difficult to operate because workers need to carry heavy objects at high places. The use of conveying devices for automatic feeding is mostly completed through air inhalation or inclined conveying devices. The former will leave residual raw materials, resulting in pollution of the raw materials used in the next production, and the latter requires a larger factory area.

[0004] Based on this, the present invention designs a raw material handling device for an injection molding machine to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a raw material handling device for an injection molding machine, so as to solve the problem raised in the above background technology that due to the structural characteristics of the injection molding machine, its hopper is mostly set at the top. In the process of manual feeding of raw materials, it is necessary to use external objects to carry the raw materials to a high place and then put the raw materials into the hopper; this process has low safety and is difficult to operate because workers need to carry heavy objects to work at high places; and the use of a conveying device for automatic feeding is mostly completed through air flow suction or an inclined conveying device. The former will leave residual raw materials, resulting in pollution of the raw materials used in the next production, and the latter requires a large factory area.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a raw material handling device for an injection molding machine, comprising an injection molding machine and a material shell, wherein a first hopper is arranged at the upper end of the injection molding machine, including a transmission mechanism arranged in the material shell; a plurality of push plates, wherein the plurality of push plates are arranged on the transmission mechanism along the trajectory array of the inner wall of the material shell, wherein the transmission mechanism is used to drive the push plates to slide in a counterclockwise cycle in close contact with the inner wall of the material shell, and the plurality of push plates cooperate with the transmission mechanism to divide the internal space of the material shell into a plurality of independent spaces; a material inlet, wherein the material inlet is opened in the lower half of the right side wall of the material shell, and is used to feed materials into the material shell; a material outlet, wherein the material outlet is opened in the upper half of the right side wall of the material shell, and is used to feed materials into the first hopper; a material discharge mechanism, wherein the material discharge mechanism is used to discharge the raw material on the push plate from the material discharge mechanism; and a cleaning mechanism, wherein the cleaning mechanism is used to clean the raw material residue on the push plate.

[0007] As a further solution of the present invention, the transmission mechanism includes a conveyor belt that is in contact with the inner side of the material container shell, and the conveyor belt can close the inner side of the material container shell. The plurality of push plates are rotatably arranged on the conveyor belt, and the upper and lower ends of the conveyor belt are transmission-connected to a group of transmission wheels arranged front and rear, and the upper group of transmission wheels is transmission-connected to a drive motor, and the drive motor is fixedly connected to the outer wall of the material container shell.

[0008] As a further solution of the present invention, the material containing shell is fixedly connected to a second hopper at the material inlet.

[0009] As a further solution of the present invention, the discharge mechanism includes a shaft sleeve of the same number as the push plate, the shaft sleeves are embedded in the belt surface of the conveyor belt in an array distribution along the belt surface of the conveyor belt, and the push plate is fixedly connected to the rotating shaft at one end close to the conveyor belt, and the rotating shaft is elastically rotatably connected to the corresponding shaft sleeve one by one, and the shaft sleeve always has a tendency to rotate clockwise, and the distance from the inner wall of the curved section below the material storage shell to the belt surface of the conveyor belt is greater than the length of the push plate; the inner wall of the straight section on the right side of the material storage shell is divided into a first straight section and a second straight section from bottom to top to the lower end of the discharge port, and the distance setting relationship between the first straight section and the belt surface of the conveyor belt is as follows: the distance is less than the length of the push plate, and gradually increases from the lower end to the upper end of the first straight section to the length of the push plate; the distance setting relationship between the second straight section and the belt surface of the conveyor belt is as follows: the distance from the lower end of the inner wall of the second straight section to the belt surface of the conveyor belt is equal to the length of the push plate, and the distance along the first The cam is an uppermost layer and a lowermost layer and is provided with a cam which is adapted to engage with the first toothed wheel at the bottom of the conveyor belt and to engage with the first toothed wheel at the bottom of the conveyor belt.

[0010] As a further solution of the present invention, the anti-stuck mechanism includes a second rotating shaft, which is embedded in the end face of the push plate, and the second rotating shaft is elastically rotatably connected to the end face of the push plate. The second rotating shaft is fixedly connected with a baffle, and the baffle is located at one end of the push plate along the counterclockwise direction of the conveyor belt. In the free state, the baffle forms a fixed angle with the end face of the push plate and protrudes from the end of the push plate.

[0011] As a further solution of the present invention, the cleaning mechanism has an openable and closable installation door, which is arranged at the lower end of the container shell. The installation door can expose the interior of the container shell, and the side wall of the lower end of the container shell is fixedly connected to an air gun connected to the interior of the container shell, and the air gun is used to spray air toward the end face of the push plate.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The present invention transports raw materials by means of a push plate whose movement path is mainly in the vertical direction, so that in the process of the equipment transporting raw materials, there is no need to set a certain slope in order to provide friction to the raw materials, which greatly reduces the space occupied by the equipment and enables the equipment to better adapt to the factory environment.

[0014] 2. The present invention drives the push plate through a conveyor belt, utilizes the characteristics of the wide and flat belt surface of the conveyor belt, and cooperates with the push plate and the material container shell to form a plurality of independent and closed spaces for transporting raw materials.

[0015] 3. The present invention switches the push plate slope by changing the distances from the first straight section and the second straight section to the conveyor belt, so that the push plate can work in a state suitable for receiving and discharging materials at both the inlet and the outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the front cross-section structure of the present invention after removing the injection molding machine and the first hopper;

[0018] Figure 3 for Figure 2 A schematic diagram of the structure enlargement in the middle;

[0019] Figure 4 for Figure 2 A magnified schematic diagram of the structure at B in the middle;

[0020] Figure 5 This is a schematic diagram of the structure of the present invention after removing the injection molding machine, the first hopper, the material containing shell and related structures on the material containing shell.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] Injection molding machine 11, material container shell 12, push plate 13, material inlet 14, material outlet 15, first hopper 16, conveyor belt 21, transmission wheel 22, drive motor 23, second hopper 3, bushing 41, rotating shaft 42, mounting rod 43, fan-shaped block 44, first teeth 45, second teeth 46, third hopper 47, second rotating shaft 51, baffle 52, mounting door 61, air gun 62. DETAILED DESCRIPTION

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be briefly introduced below in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0024] See also Figure 1-Figure 5 , the present invention provides a technical solution: a raw material handling device for an injection molding machine, comprising an injection molding machine 11 and a material container shell 12, wherein a first hopper 16 is disposed at the upper end of the injection molding machine 11, and a transmission mechanism is disposed in the material container shell 12;

[0025] A plurality of push plates 13 are arranged on a transmission mechanism along the inner wall track of the container shell 12. The transmission mechanism is used to drive the push plates 13 to slide counterclockwise along the inner wall of the container shell 12. The push plates 13 cooperate with the transmission mechanism to divide the internal space of the container shell 12 into a plurality of independent spaces.

[0026] A feed inlet 14, which is provided at the lower half of the right side wall of the container shell 12 and is used to feed materials into the container shell 12;

[0027] A discharge port 15, which is provided on the upper half of the right side wall of the container shell 12 and is used to feed materials into the first hopper 16;

[0028] A discharge mechanism, which is used to discharge the raw materials on the push plate 13 from the discharge port 15;

[0029] The cleaning mechanism is used to clean the raw material residue on the push plate 13.

[0030] The raw materials are manually put into the material containing shell 12 from the material inlet 14. After entering the material containing shell 12, the raw materials will fall into the upper end of the push plate 13 located at the material inlet 14, and move upward with the upward movement of the push plate 13 until the push plate 13 moves to the position of the material outlet 15 with the raw materials, and the raw materials on the upper end of the push plate 13 are discharged from the material outlet 15 to the first hopper 16 by the discharge mechanism; finally, when the raw materials are transported, the raw material powder remaining on the push plate 13 is cleaned by the cleaning mechanism.

[0031] The present invention transports raw materials through a push plate 13 whose movement path is mainly in the vertical direction, so that in the process of the equipment transporting raw materials, there is no need to set a certain slope to provide friction to the raw materials, which greatly reduces the space occupied by the equipment and enables the equipment to better adapt to the factory environment.

[0032] As a further solution of the present invention, the transmission mechanism includes a conveyor belt 21 that is in contact with the inner side of the container shell 12, and the conveyor belt 21 can close the inner side of the container shell 12. The plurality of push plates 13 are rotatably arranged on the conveyor belt 21. The upper and lower ends of the conveyor belt 21 are both transmission-connected to a group of transmission wheels 22 that are arranged front and rear. The upper group of transmission wheels 22 is transmission-connected to a drive motor 23, and the drive motor 23 is fixedly connected to the outer wall of the container shell 12.

[0033] The driving motor 23 drives a set of transmission wheels 22 above, thereby driving the conveyor belt 21 to rotate counterclockwise.

[0034] The present invention drives the push plate 13 through the conveyor belt 21, and utilizes the characteristics of the wide and flat belt surface of the conveyor belt 21, and cooperates with the push plate 13 and the material container shell 12 to form a plurality of independent and closed spaces for transporting raw materials.

[0035] As a further solution of the present invention, the material containing shell 12 is fixedly connected to the second hopper 3 at the material inlet 14 .

[0036] The raw materials are directly poured into the second hopper 3 manually, and the raw materials in the second hopper 3 flow into the feed port 14 by gravity. When the push plate 13 passes through the feed port 14, the raw materials on the upper end of the push plate 13 are squeezed by the raw materials in the second hopper 3 and remain on the upper end of the push plate 13, and will not flow out of the equipment from the feed port 14. At the same time, the existence of the second hopper 3 enables workers to put in a large amount of raw materials at one time, reducing the workers' work intensity.

[0037] As a further solution of the present invention, the discharge mechanism includes the same number of sleeves 41 as the push plates 13, and the sleeves 41 are embedded in the surface of the conveyor belt 21 in an array along the surface of the conveyor belt 21. The push plates 13 are fixedly connected to the ends of the conveyor belt 21 close to the conveyor belt 21 with shafts 42, and the shafts 42 are elastically rotatably connected to the corresponding sleeves 41 one by one, and the sleeves 41 always have a tendency to rotate clockwise, and the distance from the inner wall of the curved section below the container shell 12 to the surface of the conveyor belt 21 is greater than the length of the push plates 13; the container shell 12 The inner wall of the right straight section is divided into a first straight section and a second straight section from bottom to top to the lower end of the discharge port 15. The distance setting relationship between the first straight section and the belt surface of the conveyor belt 21 is as follows: the distance is less than the length of the push plate 13, and gradually increases from the lower end to the upper end of the first straight section to be equal to the length of the push plate 13; the distance setting relationship between the second straight section and the belt surface of the conveyor belt 21 is as follows: the distance from the lower end of the inner wall of the second straight section to the belt surface of the conveyor belt 21 is equal to the length of the push plate 13, and the distance is gradually increased from the lower end to the upper end of the second straight section. The direction gradually decreases; the distance from the inner wall of the material container shell 12 to the surface of the conveyor belt 21 except the lower curved section, the first straight section and the second straight section is not less than the length of the push plate 13; the feed inlet 14 is opened in the first straight section, and the material container shell 12 is fixedly connected to the axis of the transmission wheel 22 below with a mounting rod 43 that longitudinally penetrates the transmission wheel 22, and the transmission wheel 22 below is rotatably connected to the mounting rod 43, and the mounting rod 43 is fixedly connected to a sector block 44 corresponding to the position of the rotating shaft 42, and the side wall of the sector block 44 is fixedly connected to the first The tooth 45, the part of the rotating shaft 42 located on the inner side of the conveyor belt 21 is fixedly connected with the second tooth 46, the second tooth 46 can mesh with the first tooth 45, the first tooth 45 cooperates with the second tooth 46 to make the push plate 13 close to one end of the material storage shell 12 enter the first straight section in an upturned state; the material storage shell 12 is fixedly connected with a third hopper 47 at the discharge port 15, and the third hopper 47 is used to guide the discharge port 15 to discharge the raw materials into the first hopper 16; the push plate 13 is provided with an anti-stuck mechanism at one end close to the material storage shell 12.

[0038] Driven by the conveyor belt 21, the push plate 13 enters the first straight section from the curved section, and in this process, the second tooth 46 on the rotating shaft 42 corresponding to the push plate 13 passes through and fits with the first tooth 45. In this process, the second tooth 46 moves relative to the first tooth 45, and then the second tooth 46 drives the rotating shaft 42 to rotate counterclockwise, and further the push plate 13 rotates counterclockwise relative to the shaft sleeve 41, so that the push plate 13 enters the first straight section in an upturned state near one end of the material holding shell 12 (the end of the push plate 13 is upturned, so that the push plate 13 forms a slope, so that when the push plate 13 passes through the feed port 14 to receive the raw materials, it is easier to accommodate the raw materials, so that the raw materials in the second hopper 3 are about to be exhausted, and the raw materials in the second hopper 3 cannot stabilize the raw materials on the upper end of the push plate 13, the push plate 13 can retain the raw materials through its own slope to prevent the raw materials from overflowing from the feed port 14, and prevent the equipment from failing to completely transfer the raw materials when transferring the raw materials), and then push The plate 13 moves upward along the first straight section. As the distance from the inner wall of the first straight section to the conveyor belt 21 gradually increases, the push plate 13 gradually becomes horizontal until it reaches the junction of the first straight section and the second straight section. The push plate 13 is horizontal, and then the push plate 13 continues to move upward. As the distance from the inner wall of the second straight section to the conveyor belt 21 gradually decreases, the end of the push plate 13 gradually tilts downward until it reaches the discharge port 15. The raw materials flow out along the inclined slope of the push plate 13 and enter the first hopper 16 (when the push plate 13 reaches the discharge port 15, it can maintain the downward tilted state of the end under the elastic state of the elastic rotation connection between the rotating shaft 42 and the sleeve 41. At the same time, the end of the push plate 13 gradually tilts downward, making the movement process of the push plate 13 more stable, avoiding the push plate 13 from rotating significantly, causing the raw material to stir up a lot of dust, or the raw material to fly out and be lost under the action of inertia). Finally, the push plate 13 reaches the curved section again with the conveyor belt 21, and the cycle is repeated.

[0039] The present invention switches the slope of the push plate 13 by changing the distances from the first straight section and the second straight section to the conveyor belt 21, so that the push plate 13 can work in a state suitable for receiving and discharging materials at both the inlet 14 and the outlet 15.

[0040] As a further solution of the present invention, the anti-stuck mechanism includes a second rotating shaft 51, which is embedded in the end face of the push plate 13, and the second rotating shaft 51 is elastically rotatably connected to the end face of the push plate 13. The second rotating shaft 51 is fixedly connected with a baffle 52, and the baffle 52 is located at one end of the push plate 13 along the counterclockwise direction of the conveyor belt 21. In the free state, the baffle 52 forms a fixed angle with the end face of the push plate 13 and protrudes from the end of the push plate 13.

[0041] The baffle 52 and the push plate 13 enter the first straight section together. When the baffle 52 passes the junction of the first straight section and the second straight section, the end of the baffle 52 can and can only rotate upward, so that the baffle 52 enters the second straight section and as the second straight section narrows, the end of the baffle 52 rotates upward. Further, the raw material above the baffle 52 will only be pushed upward by the baffle 52 (in this process, since the end of the push plate 13 rotates downward, the raw material at the end of the push plate 13 will be clamped by the end of the push plate 13 and the inner wall of the second straight section, so that There is a risk of material jamming at the end of the push plate 13, which causes the push plate 13 to rotate downward to avoid the position, resulting in a gap between the push plate 13 and the inner wall of the second straight section, so that the raw materials on the push plate 13 fall into the next push plate 13 through the gap. This accumulation causes the equipment to jam), and further, there is no risk of material jamming at the end of the baffle 52. Furthermore, under the shielding of the baffle 52, the amount of raw materials contacted by the end of the push plate 13 is reduced, which reduces and limits the amount of material leakage when the baffle 52 is jammed, and effectively avoids the occurrence of equipment jamming.

[0042] As a further solution of the present invention, the cleaning mechanism has an openable and closable installation door 61, which is arranged at the lower end of the container shell 12. The installation door 61 can expose the interior of the container shell 12, and the lower end side wall of the container shell 12 is fixedly connected to an air gun 62 connected to the interior of the container shell 12, and the air gun 62 is used to spray air toward the end face of the push plate 13.

[0043] When the raw material is delivered, the installation door 61 is opened to expose the inside of the material container shell 12, and then the equipment is kept running and the air gun 62 is started to blow out the raw material powder remaining on the push plate 13.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A raw material handling device for an injection molding machine, comprising an injection molding machine (11) and a material container (12), wherein a first hopper (16) is disposed at the upper end of the injection molding machine (11), characterized in that: It comprises a transmission mechanism arranged in a material containing shell (12); A plurality of push plates (13), wherein the plurality of push plates (13) are arranged on a transmission mechanism in an array along a track of an inner wall of the material container shell (12), the transmission mechanism being used to drive the push plates (13) to slide counterclockwise in a circular manner in contact with the inner wall of the material container shell (12), and the plurality of push plates (13) cooperate with the transmission mechanism to divide the internal space of the material container shell (12) into a plurality of independent spaces; A material inlet (14), the material inlet (14) being disposed in the lower half of the right side wall of the material container shell (12) and being used for feeding materials into the material container shell (12); A discharge port (15), the discharge port (15) being disposed on the upper half of the right side wall of the material container shell (12) and being used for feeding materials into the first hopper (16); A discharge mechanism, the discharge mechanism being used to discharge the raw materials on the push plate (13) from the discharge port (15); A cleaning mechanism, the cleaning mechanism being used to clean the raw material residue on the push plate (13); The transmission mechanism comprises a conveyor belt (21) fitted with the inner side of the container shell (12), the conveyor belt (21) can seal the inner side of the container shell (12), a plurality of push plates (13) are rotatably arranged on the conveyor belt (21), the upper and lower ends of the conveyor belt (21) are both drivingly connected to a group of front and rear driving wheels (22), the upper group of driving wheels (22) is drivingly connected to a driving motor (23), and the driving motor (23) is fixedly connected to the outer side wall of the container shell (12); The material containing shell (12) is fixedly connected to a second material hopper (3) at the material inlet (14); The material discharging mechanism comprises the same number of shaft sleeves (41) as the push plates (13), the shaft sleeves (41) being embedded on the surface of the conveyor belt (21) in an array distribution along the surface of the conveyor belt (21), the push plates (13) being fixedly connected to one end close to the conveyor belt (21) with a rotating shaft (42), the rotating shafts (42) being elastically rotatably connected to the corresponding shaft sleeves (41) one by one, the shaft sleeves (41) always having a tendency to rotate clockwise, the distance between the inner wall of the curved section below the material container shell (12) and the surface of the conveyor belt (21) being greater than the length of the push plates (13); the inner wall of the right straight section of the material container shell (12) is The wall is divided into a first straight section and a second straight section from bottom to top until the lower end of the discharge port (15), and the distance between the first straight section and the conveyor belt (21) surface is set as follows: the distance is less than the length of the push plate (13), and gradually increases from the lower end to the upper end of the first straight section to be equal to the length of the push plate (13); the distance between the second straight section and the conveyor belt (21) surface is set as follows: the distance between the lower end of the inner wall of the second straight section and the conveyor belt (21) surface is equal to the length of the push plate (13), and the distance gradually decreases from the lower end to the upper end of the second straight section; the container shell (12) The distance from the inner wall other than the lower curved section, the first straight section and the second straight section to the belt surface of the conveyor belt (21) is not less than the length of the push plate (13); the feed port (14) is opened in the first straight section, the material container shell (12) is fixedly connected to a mounting rod (43) which longitudinally penetrates the transmission wheel (22) at the axis center of the transmission wheel (22) below, the transmission wheel (22) below is rotatably connected to the mounting rod (43), the mounting rod (43) is fixedly connected to a sector block (44) at a position corresponding to the rotating shaft (42), the side wall of the sector block (44) is fixedly connected to a first tooth (45), the rotating shaft ( The portion located on the inner side of the conveyor belt (21) is fixedly connected with a second tooth (46), and the second tooth (46) can mesh with the first tooth (45). The first tooth (45) cooperates with the second tooth (46) to enable the push plate (13) close to one end of the material storage shell (12) to enter the first straight section in an upturned state; the material storage shell (12) is fixedly connected with a third hopper (47) at the material discharge port (15), and the third hopper (47) is used to guide the material discharged from the material discharge port (15) into the first hopper (16); and an anti-stuck mechanism is provided at one end of the push plate (13) close to the material storage shell (12).

2. A material handling device for an injection molding machine according to claim 1, characterized in that: The anti-stuck mechanism comprises a second rotating shaft (51), the second rotating shaft (51) is embedded in the end face of the push plate (13), the second rotating shaft (51) is elastically rotatably connected to the end face of the push plate (13), the second rotating shaft (51) is fixedly connected to a baffle (52), the baffle (52) is located at one end of the push plate (13) along the counterclockwise direction of the conveyor belt (21), and in a free state, the baffle (52) forms a fixed angle with the end face of the push plate (13) and protrudes from the end of the push plate (13).

3. A material handling device for an injection molding machine according to claim 2, characterized in that: The cleaning mechanism has an openable and closable mounting door (61), the mounting door (61) being arranged at the lower end of the container shell (12), the mounting door (61) being capable of exposing the interior of the container shell (12), and an air gun (62) communicating with the interior of the container shell (12) being fixedly connected to the side wall at the lower end of the container shell (12), the air gun (62) being used to spray air toward the end surface of the push plate (13).

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