Injection molding device

Abstract

The utility model belongs to the technical field of injection molding processing, and particularly discloses an injection molding device. According to the injection molding device, automatic feeding of the workpieces to be machined is achieved, the feeding accuracy is improved, the production takt is accelerated, the production efficiency is improved, manual feeding is replaced, and the labor intensity of workers is reduced. In addition, the to-be-machined parts to be fed on the outer side of the discharging opening can be positioned, the situation that the to-be-machined parts cannot move into the mold cavity, and consequently mold closing of the mold is affected is avoided, and it is ensured that each to-be-machined part can be accurately pushed into the mold cavity.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding technical field especially relates to a injection molding device. BACKGROUND

[0002] Insert injection molding refers to the injection of molten plastic after the pre-prepared insert of different materials is put into the mold, and the molten plastic is combined with the insert to solidify, and the integrated product is formed, which is widely used in the injection molding industry.

[0003] At present, in the production process of insert injection molding, the insert is usually manually loaded, and the insert is placed in the mold cavity of the injection molding device. In the actual operation process, the following problems usually exist: 1. The working environment of workers is poor, and there is a certain safety risk in the process of placing the insert; 2. The labor intensity of workers is large, and needs to match the production rhythm of the automatic injection molding device. UTILITY MODEL CONTENT

[0004] The utility model aims at providing an injection molding device, which realizes automatic feeding of the workpiece to be processed, replaces manual feeding, reduces the labor intensity of workers, and improves the production efficiency.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] In the first aspect, an injection molding device is provided, comprising:

[0007] A first mold is provided with a first mold cavity;

[0008] A second mold is arranged above the first mold;

[0009] A first feeding assembly includes a first hopper, a blocking piece and a pushing piece. The first hopper is used to place the workpiece to be processed. The first discharge port of the first hopper faces the first mold cavity. The blocking piece is movably connected with the first hopper and arranged at the first discharge port. The pushing piece is fixedly connected with the second mold.

[0010] The second mold and the first mold are in a mold opening state, and the blocking piece is used to stop the workpiece to be processed outside the first discharge port. The second mold and the first mold are in a mold closing state, and the pushing piece is used to push the workpiece to be processed placed outside the first discharge port to drive the blocking piece to open, so that the workpiece to be processed moves into the first mold cavity.

[0011] As an optional technical scheme of the injection molding device, the material blocking piece comprises a material blocking rod and a material blocking block, the material blocking rod is located above the first discharge port, and two ends of the material blocking rod are rotationally connected with the first material box, one end of the material blocking block is fixedly connected with the material blocking rod, and the other end of the material blocking block is a free end, and the material blocking block can be reset by its own gravity when it is opened and is not subjected to the force of the next workpiece placed outside the first discharge port.

[0012] As an optional technical scheme of the injection molding device, one end of the material blocking block is fixedly connected with the side of the material blocking rod away from the first discharge port, and the other end of the material blocking block is bent towards the first mold.

[0013] As an optional technical scheme of the injection molding device, the free end of the material blocking block is an arc surface towards the side of the first discharge port.

[0014] As an optional technical scheme of the injection molding device, the first end of the material pushing piece is fixedly connected with the second mold, the second end of the material pushing piece is provided with a material pushing inclined surface, the second end of the material pushing piece is used for being inserted between adjacent two workpieces, and the material pushing inclined surface is in contact with the workpiece located outside the first discharge port.

[0015] As an optional technical scheme of the injection molding device, the second mold comprises a mold plate and an insert block, one side of the mold plate is provided with a mounting groove, the insert block is fixedly installed in the mounting groove, the insert block is provided with a mounting through hole, one end of the material pushing piece is inserted into the mounting through hole, and the one end of the material pushing piece is connected with a connecting piece penetrating through the mold plate.

[0016] As an optional technical scheme of the injection molding device, the first material box comprises a first material storage cavity and a first discharge channel, one end of the first discharge channel is in communication with the first material storage cavity, the other end of the first discharge channel is the first discharge port, the bottom of the first material storage cavity and the bottom surface of the first discharge channel are connected to form a first supporting surface, the first supporting surface is inclinedly arranged, and the end of the first supporting surface located in the first material storage cavity is higher than the end of the first supporting surface located in the first discharge channel.

[0017] As an optional technical scheme of the injection molding device, the first mold is provided with two first mold cavities, and each first mold cavity is correspondingly provided with one first feeding assembly, and the two first feeding assemblies are arranged on opposite sides of the first mold.

[0018] In a second aspect, an injection molding device is provided, comprising:

[0019] A third mold cavity is arranged on the third mold;

[0020] The second feeding assembly comprises a second material box and a pushing assembly, the second material box is used for placing the workpieces to be processed, a second discharge port of the second material box is arranged above the third mold and faces the third mold, a single workpiece to be processed is arranged between the third mold and the second discharge port, the pushing assembly is arranged on the second material box, the pushing assembly is used for adsorbing the workpiece to be processed between the second discharge port and the third mold, and the pushing assembly can push the workpiece to be processed into the third mold cavity.

[0021] As an optional technical scheme of the injection molding device, the pushing assembly comprises a pushing driving element, a pushing plate and a suction accessory, the pushing driving element is arranged on the second material box, a first end of the pushing plate is connected with the pushing driving element, and the suction accessory is arranged on a second end of the pushing plate, the pushing driving element is used for driving the pushing plate, so that the second end of the pushing plate pushes the workpiece to be processed between the second discharge port and the third mold into the third mold cavity.

[0022] As an optional technical scheme of the injection molding device, the suction accessory is a magnetic element, and the magnetic element is fixedly arranged on the second end of the pushing plate.

[0023] As an optional technical scheme of the injection molding device, the second material box comprises a second storage cavity and a second discharge channel, one end of the second discharge channel is communicated with the second storage cavity, the other end of the second discharge channel is the second discharge port, the bottom of the second storage cavity and the bottom surface of the second discharge channel are connected to form a second supporting surface, the second supporting surface is arranged in an inclined mode, and the end of the second supporting surface arranged in the second storage cavity is higher than the end of the second supporting surface arranged in the second discharge channel.

[0024] The injection molding device has the following beneficial effects:

[0025] In the process that the second mold is combined with the first mold, the pushing element moves towards the first mold along with the second mold, the pushing element pushes the workpiece to be processed arranged outside the first discharge port, the workpiece to be processed applies force to the blocking element to make the blocking element open, and the pushing element moves the workpiece to be processed into the first mold cavity, thereby improving the accuracy of feeding, realizing automatic feeding of the workpiece to be processed while the molds are combined, speeding up the production rhythm, improving the production efficiency, replacing manual feeding and reducing the labor intensity of workers; in addition, when the second mold is separated from the first mold, the blocking element stops the workpiece to be processed outside the first discharge port, so that the workpiece to be processed is prevented from moving into the first mold cavity and affecting the combination of the second mold and the first mold.

[0026] The injection molding device provided by the utility model, the second discharge port of the second feeding assembly faces the third mold, the second discharge port and the third mold are arranged at intervals and can only accommodate a single workpiece to be processed, the workpiece to be processed is pushed into the third mold cavity by the pushing assembly, the accuracy of feeding is improved, manual feeding is replaced by automatic feeding, the production efficiency is improved, and the labor intensity of workers is reduced; in addition, the pushing assembly can also adsorb the workpiece to be processed between the second discharge port and the third mold, plays a positioning role on the workpiece to be processed, avoids arbitrary movement of the workpiece to be processed, and the pushing assembly adsorbs the workpiece to be processed and pushes the workpiece to be processed into the third mold cavity, so that the workpiece to be processed cannot be moved arbitrarily during the process of being pushed into the third mold cavity. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is the structure schematic view of the first mold and the second mold of the injection molding device provided by the utility model embodiment;

[0028] Figure 2 It is the first shaft side view of the first mold and the second mold of the injection molding device provided by the utility model embodiment one;

[0029] Figure 3 It is the second shaft side view of the first mold and the second mold of the injection molding device provided by the utility model embodiment one;

[0030] Figure 4 It is the structure schematic view of the first mold and the first feeding assembly provided by the utility model embodiment one;

[0031] Figure 5 It is the structure schematic view of the blocking piece and the pushing piece of the first feeding assembly provided by the utility model embodiment one;

[0032] Figure 6 It is the first exploded structure schematic view of the mounting structure of the pushing piece provided by the utility model embodiment one;

[0033] Figure 7 It is the second exploded structure schematic view of the mounting structure of the pushing piece provided by the utility model embodiment one;

[0034] Figure 8 It is the sectional view of the first mold and the first feeding assembly provided by the utility model embodiment one;

[0035] Figure 9 It is the first shaft side view of the third mold and the fourth mold of the injection molding device provided by the utility model embodiment two;

[0036] Figure 10 It is the second shaft side view of the third mold and the fourth mold of the injection molding device provided by the utility model embodiment two;

[0037] Figure 11 is a structure schematic view of the third mold and the second feeding assembly provided in the second embodiment of the utility model, and

[0038] Figure 12 is a sectional view of the third mold and the second feeding assembly provided in the second embodiment of the utility model, and

[0039] Figure 13 is a structure schematic view of the pushing assembly provided in the second embodiment of the utility model.

[0040] In the drawing,

[0041] 100, the piece to be processed;

[0042] 1, the first mold; 2, the second mold; 3, the first feeding assembly;

[0043] 11, the first mold cavity; 12, the shunt;

[0044] 21, the second mold cavity; 22, the main flow channel; 23, the mold plate; 231, the installation slot; 24, the insert block; 241, the installation through hole; 25, the connecting piece;

[0045] 31, the first material box; 311, the first discharge port; 312, the first storage cavity; 313, the first discharge channel; 314, the first support surface; 315, the first bottom plate; 316, the first side plate; 317, the first back sealing plate; 318, the first front sealing plate; 32, the material blocking piece; 321, the material blocking rod; 322, the material blocking block; 33, the pushing piece; 331, the pushing inclined surface;

[0046] 4, the third mold; 5, the fourth mold; 6, the second feeding assembly;

[0047] 41, the third mold cavity;

[0048] 61, the second material box; 611, the second discharge port; 612, the second storage cavity; 613, the second discharge channel; 614, the second support surface; 615, the second bottom plate; 616, the second side plate; 617, the second back sealing plate; 618, the second front sealing plate; 62, the pushing assembly; 621, the pushing driving piece; 622, the pushing plate; 623, the suction accessory. DETAILED DESCRIPTION

[0049] The utility model will be further explained in detail in combination with the drawings and embodiments. It can be understood that the specific embodiments described here are only used to explain the utility model, and not limited to the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawing, not all structures.

[0050] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0051] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0052] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0053] Example 1

[0054] like Figures 1 to 3 As shown, this embodiment provides an injection molding apparatus for curing a plastic part onto the outer side of a workpiece 100. The injection molding apparatus includes a first mold 1 and a second mold 2, with the second mold 2 positioned above the first mold 1. The first mold 1 has a first cavity 11 for placing the workpiece 100. The second mold 2 has a second cavity 21. After the first mold 1 and the second mold 2 are closed, the first cavity 11 and the second cavity 21 align to form an injection molding cavity.

[0055] The second mold 2 is provided with a main runner 22, and the first mold 1 is provided with a branch runner 12, which is communicated with the first mold cavity 11. After the first mold 1 and the second mold 2 are closed, the main runner 22 is connected with the branch runner 12, the injection liquid enters the branch runner 12 through the main runner 22, the liquid in the branch runner 12 enters the injection mold cavity, and the part of the workpiece 100 outside the injection mold cavity is injection molded with the plastic part. The structure of the injection mold cavity is set according to the processing requirements of the workpiece 100, which is not limited here.

[0056] Optionally, the first mold 1 is provided with two first mold cavities 11, and the branch runner 12 is arranged between the two first mold cavities 11 and communicated with the two first mold cavities 11 respectively.

[0057] As shown in Figure 3 , Figure 4 and Figure 5 , the injection molding mold further comprises a first feeding assembly 3, the first feeding assembly 3 comprises a first material box 31, a material blocking piece 32 and a material pushing piece 33, the first material box 31 is used for placing the workpiece 100, a first discharge port 311 of the first material box 31 faces the first mold cavity 11, the material blocking piece 32 is movably connected with the first material box 31 and arranged at the first discharge port 311, and the material pushing piece 33 is fixedly connected with the second mold 2. When the second mold 2 and the first mold 1 are in a mold opening state, the material blocking piece 32 is used for stopping the workpiece 100 outside the first discharge port 311; when the second mold 2 and the first mold 1 are in a mold closing state, the material pushing piece 33 is used for pushing the workpiece 100 placed outside the first discharge port 311 to drive the material blocking piece 32 to open, so that the workpiece 100 moves into the first mold cavity 11.

[0058] The injection molding device provided in the embodiment, in the process that the second mold 2 and the first mold 1 are closed, the material pushing piece 33 moves towards the first mold 1 with the second mold 2, the material pushing piece 33 pushes the workpiece 100 placed outside the first discharge port 311, the workpiece 100 applies force to the material blocking piece 32 to make the material blocking piece 32 open, and the material pushing piece 33 moves the workpiece 100 into the first mold cavity 11, thereby improving the accuracy of feeding, realizing automatic feeding of the workpiece 100 while the molds are closed, speeding up the production rhythm, improving the production efficiency, replacing manual feeding and reducing the labor intensity of workers; in addition, when the second mold 2 and the first mold 1 are in a mold opening state, the material blocking piece 32 stops the workpiece 100 outside the first discharge port 311, so that the workpiece 100 cannot move into the first mold cavity 11, thereby affecting the closing of the second mold 2 and the first mold 1.

[0059] In an implementable mode, the material blocking piece 32 comprises a material blocking rod 321 and a material blocking block 322. The material blocking rod 321 is located above the first discharge port 311, and both ends of the material blocking rod 321 are rotationally connected with the first material box 31. One end of the material blocking block 322 is fixedly connected with the material blocking rod 321, and the other end of the material blocking block 322 is a free end. When the material blocking block 322 is in an open state and is not subjected to the force of the workpiece 100, the material blocking block 322 can be reset by its own gravity to stop the next workpiece 100 placed outside the first discharge port 311 and wait for the next injection molding. The workpiece 100 applies a force to the other end of the material blocking block 322, so that the material blocking block 322 drives the material blocking rod 321 to rotate about its own axis, and the workpiece 100 can move to the first mold cavity 11 beyond the material blocking block 322. The material blocking piece 32 has a simple structure. If the workpiece 100 is a long strip structure, a plurality of material blocking blocks 322 can be provided, and the plurality of material blocking blocks 322 are arranged along the length direction of the workpiece 100.

[0060] One end of the material blocking block 322 is fixedly connected with the side of the material blocking rod 321 away from the first discharge port 311, and the other end of the material blocking block 322 is bent towards the first mold 1, and the material blocking block 322 can be reset by its own gravity.

[0061] Optionally, the free end of the material blocking block 322 is an arc surface towards the side of the first discharge port 311, which improves the smoothness of the workpiece 100 pushing the material blocking block 322 and avoids affecting the feeding due to jamming.

[0062] In other implementable modes, the material blocking piece 32 can also be connected with a resetting piece. For the structure of the material blocking piece 32 described above, the resetting piece can be a torsion spring. The torsion spring is sleeved on the material blocking rod 321, one end of the torsion spring is connected with the material blocking rod 321, and the other end of the torsion spring is connected with the first material box 31. When the workpiece 100 moves beyond the material blocking block 322 and separates from the material blocking block 322, the torsion spring releases the accumulated elastic force to rotate and reset the material blocking rod 321, and then drives the material blocking block 322 to rotate and reset to stop the next workpiece 100 outside the first discharge port 311.

[0063] In another implementable mode, the material blocking piece 32 comprises a stop block. The stop block is slidably arranged on the first material box 31 in the up-down direction, and the stop block protrudes and stops the workpiece 100 placed outside the first discharge port 311. A guide inclined surface is arranged on the stop block, and the guide inclined surface is arranged towards the first discharge port 311. The workpiece 100 can apply a force to the guide inclined surface during the movement towards the first mold cavity 11, and the stop block slides downwards until the workpiece 100 moves beyond the stop block. The stop block is connected with an elastic piece. When the stop block slides downwards, the elastic piece is compressed. When the workpiece 100 moves beyond the stop block, the elastic piece drives the stop block to reset, so that the stop block stops the workpiece 100 outside the first discharge port 311. The elastic piece plays a role in resetting the stop block.

[0064] In the embodiment, the first end of the pushing piece 33 is fixedly connected with the second mold 2, the second end of the pushing piece 33 is provided with a pushing slope 331, and the second end of the pushing piece 33 is used for being inserted between two adjacent workpieces 100. The pushing slope 331 is in contact with the workpiece 100 located outside the first discharge port 311. It is further explained that the workpiece 100 located outside the first discharge port 311 is set as a first workpiece, the workpiece 100 adjacent to the first workpiece in the first magazine 31 is set as a second workpiece, the second end of the pushing piece 33 is used for being inserted between the first workpiece and the second workpiece, and the pushing slope 331 is in contact with the first workpiece. With the downward movement of the pushing piece 33, the first workpiece is gradually pushed out by the pushing slope 331, and the pushing piece 33 stops the second workpiece, so that only one workpiece 100 enters the first mold cavity 11 each time. The pushing piece 33 and the blocking block 322 of the blocking piece 32 are staggered, when the first workpiece passes the blocking block 322, the blocking block 322 is reset, so that when the pushing piece 33 rises, the blocking block 322 can stop the second workpiece located outside the first discharge port 311.

[0065] As shown in Figure 6 and Figure 7 Optionally, the second mold 2 includes a mold plate 23 and an insert block 24. One side of the mold plate 23 is provided with a mounting groove 231, and the insert block 24 is fixedly installed in the mounting groove 231. The insert block 24 is provided with a mounting through hole 241, one end of the pushing piece 33 is inserted into the mounting through hole 241, and the one end of the pushing piece 33 is connected with the connecting piece 25 penetrating the mold plate 23, so as to facilitate the assembly of the pushing piece 33 on the second mold 2.

[0066] Each first mold cavity 11 is correspondingly provided with a first feeding assembly 3. For example, as described above, the first mold 1 is provided with two first mold cavities 11, and two first feeding assemblies 3 are correspondingly provided. The two first feeding assemblies 3 are arranged on the opposite sides of the first mold 1.

[0067] As shown in Figure 5 and Figure 8As shown, in the present embodiment, the first hopper 31 comprises a first storage cavity 312 and a first discharge channel 313, one end of the first discharge channel 313 communicates with the first storage cavity 312, and the other end of the first discharge channel 313 is a first discharge port 311, which can discharge a workpiece 100. The bottom of the first storage cavity 312 and the bottom surface of the first discharge channel 313 form a first support surface 314, the first support surface 314 is obliquely arranged, and the end of the first support surface 314 arranged in the first storage cavity 312 is higher than the end of the first support surface 314 arranged in the first discharge channel 313. The workpiece 100 in the first storage cavity 312 is stored, and the workpiece 100 in the first storage cavity 312 slides into the first discharge channel 313 and is sequentially arranged to slide out of the first discharge port 311 outside by relying on the oblique arrangement of the first support surface 314, thereby realizing automatic discharge of the workpiece 100, which is simple in structure and easy to implement.

[0068] Optionally, the first hopper 31 comprises a first bottom plate 315, the upper surface of the first bottom plate 315 is obliquely arranged to form the first support surface 314, the opposite sides of the first bottom plate 315 are respectively provided with knife-shaped first side plates 316, one side of the other two opposite sides of the first bottom plate 315 is provided with a first back sealing plate 317, and the other side is provided with an L-shaped first front sealing plate 318, the vertical plate of the first front sealing plate 318, the first back sealing plate 317, the first bottom plate 315 and the two first side plates 316 form the first storage cavity 312, and the horizontal plate of the first front sealing plate 318, the first bottom plate 315 and the two first side plates 316 form the first discharge channel 313. The distance between the horizontal plate of the first front sealing plate 318 and the first bottom plate 315 can accommodate a single workpiece 100, and a plurality of workpieces 100 are sequentially arranged in the first discharge channel 313. The first bottom plate 315 is longer than the horizontal plate of the first front sealing plate 318, and the first bottom plate 315 is connected with the first mold 1. The workpiece 100 arranged outside the first discharge port 311 can be arranged on the first mold 1, which is not specifically limited here.

[0069] In other some implementable ways, the first hopper 31 comprises a first storage cavity 312 and a first discharge channel 313, one end of the first discharge channel 313 communicates with the first storage cavity 312, and the other end of the first discharge channel 313 is a first discharge port 311, and a vibrator is connected below the first hopper 31, and the vibration of the vibrator makes the workpiece 100 in the first storage cavity 312 sequentially enter the first discharge channel 313, and sequentially discharge through the first discharge port 311.

[0070] Embodiment two

[0071] As Figure 9 and Figure 10As shown, the embodiment provides an injection molding device, which comprises a third mold 4 and a fourth mold 5 matched with the third mold 4, and the third mold 4 is provided with a third mold cavity 41. The difference between the injection molding device and the first embodiment is that the injection molding device further comprises a second feeding assembly 6, such as Figures 11 to 13 As shown, the second feeding assembly 6 comprises a second material box 61 and a pushing assembly 62, the second material box 61 is used for placing the workpiece 100 to be processed, and the second discharge port 611 of the second material box 61 is arranged above and towards the third mold 4, and the third mold 4 and the second discharge port 611 are used for accommodating a single workpiece 100 to be processed, and the pushing assembly 62 is arranged on the second material box 61, and the pushing assembly 62 is used for adsorbing the workpiece 100 to be processed between the second discharge port 611 and the third mold 4, and can push the workpiece 100 to be processed into the third mold cavity 41.

[0072] The second discharge port 611 of the second feeding assembly 6 is towards the third mold 4, and the second discharge port 611 is arranged in a spaced manner with the third mold 4 and can only accommodate a single workpiece 100 to be processed, and the pushing assembly 62 pushes the workpiece 100 to be processed into the third mold cavity 41, which improves the accuracy of feeding, replaces manual feeding, realizes automatic feeding, improves production efficiency, and reduces the labor intensity of workers; in addition, the pushing assembly 62 can also adsorb the workpiece 100 to be processed between the second discharge port 611 and the third mold 4, which plays a positioning role on the workpiece 100 to be processed, avoids the workpiece 100 to be processed from moving randomly, and the pushing assembly 62 adsorbs the workpiece 100 to be processed and pushes the workpiece 100 to be processed into the third mold cavity 41, which can ensure that the workpiece 100 to be processed will not move randomly in the process of being pushed into the third mold cavity 41.

[0073] Continuing to refer to Figure 12 and Figure 13As shown, the pushing assembly 62 comprises a pushing driving member 621, a pushing plate 622 and a suction accessory 623. The pushing driving member 621 is arranged on the second magazine 61. The first end of the pushing plate 622 is connected with the pushing driving member 621. The suction accessory 623 is arranged on the second end of the pushing plate 622. The pushing driving member 621 is used to drive the pushing plate 622, so that the second end of the pushing plate 622 pushes the workpiece 100 between the second discharge port 611 and the third mold 4 into the third mold cavity 41. During the process of pushing the single workpiece 100 between the second discharge port 611 and the third mold 4, the pushing plate 622 can block the second discharge port 611. After the pushing plate 622 pushes the workpiece 100 into the third mold cavity 41, the pushing driving member 621 drives the pushing plate 622 to reset, so that the pushing plate 622 no longer blocks the second discharge port 611. The workpiece 100 located in the second discharge port 611 falls between the second discharge port 611 and the third mold 4. At the same time, the suction accessory 623 adsorbs the workpiece 100, so as to position the workpiece 100 and avoid the workpiece 100 from moving randomly and affecting the feeding.

[0074] The pushing plate 622 is an L-shaped plate. The vertical plate of the pushing plate 622 is connected with the pushing driving member 621. The horizontal plate of the pushing plate 622 is used to push the workpiece 100. The vertical plate of the pushing plate 622 can also play a limiting role. When the pushing plate 622 pushes the workpiece 100 into the third mold cavity 41, the vertical plate of the pushing plate 622 abuts against the side surface of the third mold 4, so that the pushing plate 622 cannot continue to move forward, thereby limiting the stroke of the pushing plate 622.

[0075] The pushing driving member 621 can be a pneumatic cylinder or a linear motor, which is not limited here.

[0076] Optionally, since the workpiece 100 is usually a metal piece, the suction accessory 623 is a magnetic piece which is fixedly arranged on the second end of the pushing plate 622. The structure is simple, and the use cost is low. After the third mold 4 and the fourth mold 5 are closed, the workpiece 100 is positioned in the injection mold cavity. When the pushing plate 622 resets, the magnetic piece is separated from the workpiece 100.

[0077] In other some implementable manners, the suction accessory 623 can be a vacuum suction cup which adsorbs the workpiece 100, and the material of the workpiece 100 is not specially required.

[0078] In the embodiment, as shown in Figure 11 and Figure 12As shown, the second hopper 61 comprises a second storage cavity 612 and a second discharge channel 613, one end of the second discharge channel 613 communicates with the second storage cavity 612, and the other end of the second discharge channel 613 is a second discharge port 611, the second discharge port 611 can discharge a single workpiece 100, the bottom of the second storage cavity 612 and the bottom surface of the second discharge channel 613 form a second support surface 614, the second support surface 614 is inclined, and the end of the second support surface 614 located in the second storage cavity 612 is higher than the end of the second support surface 614 located in the second discharge channel 613. The workpiece 100 in the second storage cavity 612 is stored, and the workpiece 100 in the second storage cavity 612 slides into the second discharge channel 613 and is sequentially arranged to slide out of the second discharge port 611 and be placed between the second discharge port 611 and the third mold 4 by relying on the inclined structure of the second support surface 614, realizing automatic discharge of the workpiece 100, which is simple in structure and easy to implement.

[0079] Optionally, the second hopper 61 comprises a second bottom plate 615, the upper surface of the second bottom plate 615 is inclined to form the second support surface 614, the opposite sides of the second bottom plate 615 are respectively provided with knife-shaped second side plates 616, one side of the other two opposite sides of the second bottom plate 615 is provided with a second back sealing plate 617, and the other side is provided with an L-shaped second front sealing plate 618, the vertical plate of the second front sealing plate 618, the second back sealing plate 617, the second bottom plate 615 and the two second side plates 616 form the second storage cavity 612. The horizontal plate of the second front sealing plate 618, the second bottom plate 615 and the two second side plates 616 form the second discharge channel 613, the end of the horizontal plate of the second front sealing plate 618 is bent towards the third mold 4, and is spaced apart from the second bottom plate 615 to form the second discharge port 611. The spacing between the horizontal plate of the second front sealing plate 618 and the second bottom plate 615 can accommodate a single workpiece 100, and a plurality of workpieces 100 are sequentially arranged in the second discharge channel 613.

[0080] In other some implementable ways, the second hopper 61 comprises a second storage cavity 612 and a second discharge channel 613, one end of the second discharge channel 613 communicates with the second storage cavity 612, and the other end of the second discharge channel 613 is a second discharge port 611, a vibrator is connected below the second hopper 61, and the vibration of the vibrator makes the workpiece 100 in the second storage cavity 612 sequentially enter the second discharge channel 613 and be sequentially discharged through the second discharge port 611.

[0081] In the process of injection molding, the third mold 4 and the fourth mold 5 are clamped, and the pushing assembly 62 pushes the workpiece 100 into the third mold cavity 41, after the third mold 4 and the fourth mold 5 are clamped, the workpiece 100 is ensured to be placed in the third mold cavity 41, and the pushing assembly 62 is reset to prepare for processing the next workpiece 100.

[0082] Alternatively, before the third mold 4 and the fourth mold 5 are closed, the pushing assembly 62 pushes the workpiece 100 into the third mold cavity 41, and then after the third mold 4 and the fourth mold 5 are closed, the third mold 4 and the fourth mold 5 position the workpiece 100 in the injection molding cavity, and the pushing assembly 62 is reset, ready for processing the next workpiece 100.

[0083] The injection molding device provided by the embodiment has the same other structure as that of the first embodiment, and thus will not be described in detail herein. The third mold 4 and the fourth mold 5 provided by the embodiment have the same other structure as that of the first embodiment, and thus will not be described in detail herein.

[0084] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not intended to limit the embodiments of the utility model. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the utility model. Here, it is unnecessary and impossible to enumerate all the embodiments. Any modification, equivalent substitution and improvement within the spirit and principle of the utility model shall be included in the protection scope of the utility model claim.

Claims

1. An injection molding apparatus, characterized in that, include: A first mold (1) is provided with a first mold cavity (11); The second mold (2) is positioned above the first mold (1); The first feeding assembly (3) includes a first material box (31), a baffle (32) and a pusher (33). The first material box (31) is used to place the workpiece (100) to be processed. The first discharge port (311) of the first material box (31) faces the first mold cavity (11). The baffle (32) is movably connected to the first material box (31) and is disposed at the first discharge port (311). The pusher (33) is fixedly connected to the second mold (2). The second mold (2) and the first mold (1) are in a mold separation state. The stop (32) is used to stop the workpiece (100) outside the first discharge port (311). The second mold (2) and the first mold (1) are in a mold closing state. The pusher (33) is used to push the workpiece (100) placed outside the first discharge port (311) to drive the stop (32) to open, so that the workpiece (100) can move into the first mold cavity (11).

2. The injection molding apparatus according to claim 1, characterized in that, The baffle (32) includes a baffle rod (321) and a baffle block (322). The baffle rod (321) is located above the first discharge port (311), and both ends of the baffle rod (321) are rotatably connected to the first material box (31). One end of the baffle block (322) is fixedly connected to the baffle rod (321), and the other end of the baffle block (322) is a free end. When the baffle block (322) is open and not subjected to the force of the workpiece (100), it can be reset by its own gravity to stop the next workpiece (100) placed outside the first discharge port (311).

3. The injection molding apparatus according to claim 2, characterized in that, One end of the baffle block (322) is fixedly connected to the side of the baffle rod (321) away from the first discharge port (311), and the other end of the baffle block (322) is bent toward the first mold (1).

4. The injection molding apparatus according to claim 3, characterized in that, The free end of the baffle block (322) facing the first discharge port (311) has an arc-shaped surface.

5. The injection molding apparatus according to claim 1, characterized in that, The first end of the pusher (33) is fixedly connected to the second mold (2), and the second end of the pusher (33) is provided with a pusher slope (331). The second end of the pusher (33) is used to be inserted between two adjacent workpieces (100) to be processed. The pusher slope (331) contacts the workpiece to be processed located outside the first outlet (311).

6. The injection molding apparatus according to claim 5, characterized in that, The second mold (2) includes a template (23) and an insert (24). The template (23) has an installation groove (231) on one side. The insert (24) is fixedly installed in the installation groove (231). The insert (24) has an installation through hole (241). One end of the pusher (33) is inserted into the installation through hole (241), and one end of the pusher (33) is connected to the connector (25) that passes through the template (23).

7. The injection molding apparatus according to claim 1, characterized in that, The first material box (31) includes a first storage cavity (312) and a first discharge channel (313). One end of the first discharge channel (313) is connected to the first storage cavity (312), and the other end of the first discharge channel (313) is the first discharge port (311). The bottom of the first storage cavity (312) and the bottom surface of the first discharge channel (313) are connected to form a first support surface (314). The first support surface (314) is inclined, and the end of the first support surface (314) placed in the first storage cavity (312) is higher than the end of the first support surface (314) placed in the first discharge channel (313).

8. The injection molding apparatus according to claim 1, characterized in that, The first mold (1) is provided with two first mold cavities (11), and each first mold cavity (11) is respectively provided with a first feeding component (3). The two first feeding components (3) are located on opposite sides of the first mold (1).

9. An injection molding apparatus, characterized in that, include: The third mold (4) is provided with a third mold cavity (41); The second feeding assembly (6) includes a second material box (61) and a pushing assembly (62). The second material box (61) is used to place the workpiece (100) to be processed. The second discharge port (611) of the second material box (61) is positioned above the third mold (4) and facing the third mold (4). The third mold (4) and the second discharge port (611) are used to accommodate a single workpiece (100) to be processed. The pushing assembly (62) is disposed on the second material box (61). The pushing assembly (62) is used to adsorb the workpiece (100) to be processed between the second discharge port (611) and the third mold (4) and can push the workpiece (100) to be processed into the third mold cavity (41).

10. The injection molding apparatus according to claim 9, characterized in that, The pushing assembly (62) includes a pushing drive (621), a pushing plate (622), and an adsorption member (623). The pushing drive (621) is disposed on the second material box (61). The first end of the pushing plate (622) is connected to the pushing drive (621). The adsorption member (623) is disposed on the second end of the pushing plate (622). The pushing drive (621) is used to drive the pushing plate (622) so that the second end of the pushing plate (622) pushes the workpiece (100) between the second outlet (611) and the third mold (4) into the third mold cavity (41).

11. The injection molding apparatus according to claim 10, characterized in that, The adsorption element (623) is a magnetic element, which is fixedly disposed at the second end of the pusher plate (622).

12. The injection molding apparatus according to claim 9, characterized in that, The second material box (61) includes a second storage cavity (612) and a second discharge channel (613). One end of the second discharge channel (613) is connected to the second storage cavity (612), and the other end of the second discharge channel (613) is the second discharge port (611). The bottom of the second storage cavity (612) and the bottom surface of the second discharge channel (613) are connected to form a second support surface (614). The second support surface (614) is inclined, and the end of the second support surface (614) placed in the second storage cavity (612) is higher than the end of the second support surface (614) placed in the second discharge channel (613).

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