Four-station double-colored plastic injection machine

Abstract

The utility model belongs to the technical field of injection molding machines, and discloses a four-station double-colored injection molding machine which comprises an injection molding machine body, a glue injection mechanism, a turntable, an upper mold and a lower mold, the glue injection mechanism comprises two injection molding gun barrels, and the two injection molding gun barrels are arranged on the injection molding machine body and are used for conveying glue materials; four stations are arranged on the end face, facing the injection molding gun barrel, of the rotating disc at intervals in the circumferential direction; the upper mold is installed on the injection molding machine body and connected with the injection molding gun barrel, the lower mold is arranged on the rotary disc, the upper mold is connected with a driving piece and used for driving the upper mold to move downwards close to or upwards away from the lower mold, and the rotary disc is rotationally connected with the injection molding machine body. Thus, the four stations are arranged on the rotating disc, and the two injection molding gun barrels are arranged, so that the battery cover plates on the different stations can be subjected to injection molding and rubber coating by rotating the rotating disc, and the double-color injection molding efficiency and quality are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding machine technical field especially relates to a four station double -color injection molding machine. BACKGROUND

[0002] Injection molding machine is mainly used for the thermoplastic or thermosetting plastics material through heating melt after injection into the mould, after cooling and shaping form various shapes product, in the battery manufacturing field, injection molding machine is often used to produce pole post rubber coating part to improve the insulation performance between pole post and battery cover plate.

[0003] The existing injection molding machine is usually single -color injection molding when injection molding, has certain limitation, when the positive pole post and negative pole post on the battery cover plate need to use different color or different material injection molding material injection molding, need to use two groups of single -color injection molding machine, not only the production cost is higher, still needs longer production time, there is the problem of low double -color injection molding efficiency of battery cover plate. UTILITY MODEL CONTENT

[0004] The utility model is to provide a four station double -color injection molding machine to solve the problem of low double -color injection molding efficiency of battery cover plate.

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

[0006] A four station double -color injection molding machine, injection molding machine body, glue injection mechanism, the glue injection mechanism includes two injection molding barrels, two injection molding barrels are arranged in the injection molding machine body for conveying glue material, rotary table, the rotary table is arranged below the injection molding barrel, the end face of the rotary table towards the injection molding barrel is circumferentially spaced apart four stations, upper die and lower die, the upper die is installed on the injection molding machine body and is connected with the injection molding barrel, the lower die is arranged on the rotary table, the upper die is connected with the driving part for driving the upper die moves along the direction of downward close or upward away from the lower die, the rotary table is rotationally connected with the injection molding machine body.

[0007] As preferred, the upper die is provided with a first accommodating groove for accommodating injection molding parts, and the lower die is provided with a second accommodating groove for accommodating battery cover plates.

[0008] As preferred, the four station double -color injection molding machine further includes a blowing mechanism, the blowing mechanism includes a blowing nozzle, the blowing nozzle is connected with the upper die, and the output end of the blowing nozzle is arranged towards the lower die.

[0009] As preferred, the first accommodating groove is provided with a plurality of blowing nozzles.

[0010] As preferred, the blowing mechanism further comprises a gas conveying pipe in communication with the blowing nozzle, and the gas conveying pipe is arranged inside the upper mold.

[0011] As preferred, the glue injection mechanism further comprises a hot runner, the hot runner is in communication with the injection barrel, the output end of the hot runner is arranged towards the lower mold, and the hot runner is arranged in one-to-one correspondence with the blowing nozzle.

[0012] As preferred, the hot runner is arranged inside the upper mold, and the output end of the hot runner is located in the first accommodating groove.

[0013] As preferred, the four-station double-color injection molding machine further comprises an ejector rod, the ejector rod is in sliding connection with the lower mold, and the projection of the ejector rod in the height direction of the lower mold is located inside the projection of the second accommodating groove in the height direction of the lower mold.

[0014] As preferred, a plurality of ejector rods are arranged, and the plurality of ejector rods are symmetrically arranged on the lower mold.

[0015] As preferred, a plurality of second accommodating grooves are arranged, and three groups of ejector rods are correspondingly arranged in each second accommodating groove, and the three groups of ejector rods are uniformly and spacedly arranged along the length direction of the second accommodating groove.

[0016] The four-station double-color injection molding machine has the following beneficial effects:

[0017] The four-station double-color injection molding machine comprises an injection molding machine body, a glue injection mechanism, a rotating disc, an upper mold and a lower mold, the glue injection mechanism comprises two injection barrels, the two injection barrels are arranged on the injection molding machine body and are used for conveying glue, the rotating disc is arranged below the injection barrel, the end surface of the rotating disc towards the injection barrel is circumferentially and spacedly provided with four stations, the upper mold is arranged on the injection molding machine body and is connected with the injection barrel, the lower mold is arranged on the rotating disc, the upper mold is connected with a driving piece, the driving piece is used for driving the upper mold to move towards the direction of approaching or moving away from the lower mold, and the rotating disc is rotationally connected with the injection molding machine body.

[0018] In this way, the two injection barrels can respectively convey glue of different colors or different materials, so that double-color injection molding can be completed in a single injection molding, four stations are arranged on the rotating disc, different assembly steps can be facilitated for workers, the number of injection molding machines is saved, production cost and labor cost are reduced, production time is shortened, and injection molding quality is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a first local structure schematic view of the four-station double-color injection molding machine in an embodiment of the utility model;

[0020] Figure 2 is a second local structure schematic view of the four-station double-color injection molding machine in an embodiment of the utility model;

[0021] Figure 3 is a partial structure schematic view of the upper die in an embodiment of the utility model;

[0022] Figure 4 is a first partial structure schematic view of the lower die in an embodiment of the utility model;

[0023] Figure 5 is a second partial structure schematic view of the lower die in an embodiment of the utility model;

[0024] Figure 6 is an enlarged view of A in an embodiment of the utility model. Figure 5

[0025] In the drawing:

[0026] 1, glue injection mechanism;11, hot runner;111, hot nozzle;2, rotary table;21, station;3, upper die;31, first containing groove;4, lower die;41, second containing groove;5, blowing mechanism;51, blowing nozzle;52, gas pipe;6, ejector rod. Specific implementation

[0027] 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 the structures.

[0028] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated;It can be mechanical connection, or electrical connection;It can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0029] In the utility model, unless otherwise explicitly specified and limited, the first feature is "on" or "below" the second feature, which can include direct contact between the first and second features, or indirect contact between the first and second features through other features between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0030] ​In the description of the present embodiment, the terms "upper", "lower", "right", and the like, orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0031] Referring to Figure 1 and Figure 2 The utility model provides a four station double -color injection molding machine, including injection molding machine body (not shown in the drawing), glue injection mechanism 1, carousel 2, upper die 3 and lower die 4. Glue injection mechanism 1 includes two injection molding barrels (not shown in the drawing), two injection molding barrels are all set up in injection molding machine body, for conveying glue material, carousel 2 is set up below injection molding barrel, and the end face of carousel 2 towards injection molding barrel is circumferentially spaced apart four stations 21, upper die 3 is installed in injection molding machine body and is connected with injection molding barrel, lower die 4 is set up in carousel 2, upper die 3 is connected with driving part (not shown in the drawing), for driving upper die 3 moves along the direction of downward close or upward away from lower die 4, and carousel 2 is rotatably connected with injection molding machine body.

[0032] In the present embodiment, carousel 2 is a disc structure, and a plurality of mounting holes (not shown in the drawing) are formed at the positions where the stations 21 are arranged on the carousel 2, so that the lower dies 4 can be detachably connected to the carousel 2 by being bolted to the stations 21, and the driving part is a pneumatic cylinder.

[0033] It should be noted that the four stations 21 of the carousel 2 correspond to positions for placing the lower plastic, placing the aluminum sheet, injection molding, and taking out the battery cover plate product after injection molding and assembling the positive and negative poles, that is, after the staff assembles the lower plastic at the station 21, the carousel 2 is rotated in sequence to complete the assembly and double-color injection molding process.

[0034] In this way, by providing four stations 21 on the carousel 2, providing lower dies 4 on the four stations 21, and providing two injection molding barrels on the injection molding machine body, the assembly efficiency of the battery cover plate can be improved, the double-color injection molding can be completed in one injection molding operation, the number of injection molding machines can be saved, the production cost can be reduced, the production time can be shortened, and the production efficiency of the double-color injection molding process of the battery cover plate can be improved.

[0035] It can be understood that the driving part can also be a linear driving mechanism such as an electric push rod or a linear motor, which can drive the upper die 3 to move in the vertical direction. A motor can also be connected below the carousel 2 to drive the carousel 2 to move the lower die 4 carrying the battery cover plate to below the upper die 3 for injection molding.

[0036] Referring to Figure 3 and Figure 4In some embodiments, the upper mold 3 is provided with a first accommodating groove 31 for accommodating the injection molding part, and the lower mold 4 is provided with a second accommodating groove 41 for accommodating the battery cover plate.

[0037] In the embodiment, the upper mold 3 is provided with four groups of first accommodating grooves 31, each group of first accommodating grooves 31 includes two first accommodating grooves 31 arranged corresponding to the positions of the pole columns, and the shape of the first accommodating grooves 31 is matched with the shape of the injection molding part, so that the glue forms an injection molding part connected with the battery cover plate in the first accommodating grooves 31; the lower mold 4 is provided with four groups of second accommodating grooves 41 corresponding, each group includes one second accommodating groove 41, and the shape of the second accommodating groove 41 is matched with the shape of the battery cover plate, that is, the four-station double-color injection molding machine can perform double-color injection molding on four battery cover plates at a time.

[0038] In this way, the battery cover plate is assembled into the second accommodating groove 41, which can limit the position of the battery cover plate and avoid the battery cover plate from being offset during the injection molding process to affect the injection molding effect; the glue injected into the first accommodating groove 31 can form an injection molding part after cooling, so that the injection molding part can be stably connected with the battery cover plate, and two injection barrels are provided, which can make the two injection barrels deliver glue of different colors or different materials to the first accommodating groove 31, so as to realize the effect of double-color injection molding on a single four-station double-color injection molding machine.

[0039] It can be understood that the number of the first accommodating grooves 31 and the second accommodating grooves 41 can be flexibly adjusted according to the actual mold design needs, which will not be described here.

[0040] Referring to Figure 2 and Figure 4 In some embodiments, the four-station double-color injection molding machine further comprises a blowing mechanism 5, the blowing mechanism 5 comprises a blowing nozzle 51, the blowing nozzle 51 is connected with the upper mold 3, and the output end of the blowing nozzle 51 is arranged towards the lower mold 4. In the embodiment, the blowing nozzle 51 is fixedly connected with the upper mold 3, and is used for blowing the battery cover plate after injection molding.

[0041] In this way, when the double-color injection molding process is completed, the blowing nozzle 51 can blow the side of the battery cover plate facing the upper mold 3 to prevent the injection molding part from adhering to the upper mold 3, and the blowing nozzle 51 can blow off the plastic chips generated during the injection molding process to reduce the defects of the battery cover plate.

[0042] Referring to Figures 1 to 4 In some embodiments, a plurality of first accommodating grooves 31 are provided, and each first accommodating groove 31 is provided with a blowing nozzle 51, that is, the blowing nozzle 51 is provided with four groups, and when the battery cover plate is located below the upper mold 3, the blowing nozzle 51 is correspondingly arranged above the pole column.

[0043] Therefore, when the double-color injection is completed, the air blow nozzles 51 above the two polar posts of the battery cover plate blow air to the battery cover plate, so that the battery cover plate is stably separated from the upper mold 3, the battery cover plate is prevented from being deviated by the single air blow nozzle 51, the stability of the battery cover plate on the lower mold 4 is improved, and the production efficiency of the double-color injection process is improved.

[0044] It can be understood that the positions and the number of the air blow nozzles 51 can be flexibly adjusted, and the battery cover plate can be separated from the upper mold 3 and the plastic chips can be cleaned, which will not be enumerated here.

[0045] Referring to Figure 3 and Figure 4 In some embodiments, the air blow mechanism 5 further comprises a gas conveying pipe 52 in communication with the air blow nozzles 51, and the gas conveying pipe 52 is arranged in the upper mold 3. The gas conveying pipe 52 is horizontally arranged in the upper mold 3, and is used to convey gas to the air blow nozzles 51.

[0046] Therefore, the gas conveying pipe 52 is arranged in the upper mold 3, the space in the upper mold 3 can be effectively utilized, the structure of the four-station double-color injection machine is more compact, the motion interference between the gas conveying pipe 52 and the air blow nozzles 51 and the lower mold 4 is reduced, and the assembly and injection efficiency of the battery cover plate is improved.

[0047] It can be understood that the gas conveying pipe 52 can also be arranged on the side of the upper mold 3 away from the turntable 2, and the arrangement position of the gas conveying pipe 52 can be flexibly adjusted according to actual needs, and is not limited to the inside of the upper mold 3, which will not be enumerated here.

[0048] Referring to Figure 1 and Figure 4 In some embodiments, the glue injection mechanism 1 further comprises a hot runner 11, the hot runner 11 is in communication with the injection barrel, the output end of the hot runner 11 is arranged towards the lower mold 4, and the hot runner 11 is arranged in one-to-one correspondence with the air blow nozzles 51. In this embodiment, the hot runner 11 is connected in one-to-one correspondence with the injection barrel, the output end of the hot runner 11 is in communication with the first accommodating groove 31, the output end of the injection barrel is in communication with the input end of the hot runner 11, the glue is conveyed to the first accommodating groove 31 through the output end of the hot runner 11, the hot runner 11 is symmetrically arranged on both sides of the upper mold 3, that is, the hot runner 11 corresponds to the position of the polar post, and the two injection barrels are in communication with the hot runners 11 on both sides, respectively, for conveying glue of different colors or different materials to the polar posts of different polarities.

[0049] Further, referring to Figure 6 , the end of the hot runner 11 away from the injection barrel is provided with a hot nozzle 111 for conveying glue.

[0050] Thus, when the lower mold 4 is rotated to the lower side of the upper mold 3 by the rotating disc 2, the upper mold 3 and the lower mold 4 are closed, and the injection barrel can deliver different glue materials to the battery cover plate through the hot runner 11, so as to realize double-color injection molding and improve the double-color injection molding efficiency of the battery cover plate.

[0051] It can be understood that the plurality of hot runners 11 can also be connected with one injection barrel through pipelines, which can realize the simultaneous delivery of double-color glue materials to the battery cover plate, and details are not repeated here.

[0052] Referring to Figure 5 and Figure 6 , in some embodiments, the hot runner 11 is arranged in the upper mold 3 (see Figure 1 ), and the output end of the hot runner 11 is located in the first accommodating groove 31 (see Figure 3 ). Among them, the hot runner 11 is vertically arranged in the upper mold 3, and the output end of the hot runner 11 protrudes from the side of the upper mold 3 facing the rotating disc 2, so as to deliver the glue material into the first accommodating groove 31, and use the internal space of the upper mold 3 to make the structure of the four-station double-color injection molding machine more compact.

[0053] Further, in some embodiments, a cooling pipe (not shown in the figure) is further included, which is horizontally arranged in the upper mold 3 and parallel to the gas delivery pipe 52.

[0054] Thus, by delivering cooling water into the cooling pipe, the cooling speed of the glue material can be further accelerated, so as to improve the double-color injection molding efficiency, shorten the production time, and reduce the production cost.

[0055] Referring to Figure 4 , in some embodiments, the four-station double-color injection molding machine further includes a ejector rod 6, which is slidingly connected with the lower mold 4, and the projection of the ejector rod 6 in the height direction of the lower mold 4 is located inside the projection of the second accommodating groove 41 in the height direction of the lower mold 4. Among them, the ejector rod 6 is vertically arranged, and the ejector rod 6 can slide in the vertical direction in the lower mold 4.

[0056] Thus, after the injection work is completed, the ejector rod 6 moves upward and lifts the battery cover plate, which can facilitate the staff to pick up, improve the production efficiency of the double-color injection molding, and shorten the production time.

[0057] It can be understood that the ejector rod 6 can be connected with a linear driving mechanism such as a cylinder, or can be sleeved with a spring abutting against the lower mold 4, so that when the upper mold 3 moves away from the lower mold 4, the battery cover plate is automatically ejected under the elastic force of the spring, so that the battery cover plate is separated from the second accommodating groove 41. The moving mode of the ejector rod 6 can be adjusted according to the actual design needs, and details are not repeated here.

[0058] Referring to Figure 4In some embodiments, the plurality of ejector pins 6 are symmetrically arranged in the lower mold 4. Further, the plurality of second accommodating grooves 41 are provided, and each of the second accommodating grooves 41 is provided with three groups of ejector pins 6, and the three groups of ejector pins 6 are uniformly spaced along the length direction of the second accommodating groove 41.

[0059] In the embodiment, the three groups of ejector pins 6 are arranged at two ends of the second accommodating groove 41 and at the middle of the second accommodating groove 41, respectively, each group of ejector pins 6 in each of the second accommodating grooves 41 includes two ejector pins 6, that is, six ejector pins 6 are arranged in each of the second accommodating grooves 41.

[0060] In this way, after the two-color injection molding is completed, the three groups of ejector pins 6 are respectively moved upward and abut against the two ends and the middle of the battery cover plate, so that the battery cover plate is stably supported, the battery cover plate is prevented from falling off the lower mold 4 and being damaged, and the yield of the two-color injection molding is improved.

[0061] It can be understood that the ejector pins 6 can be uniformly arranged in the first accommodating groove 31 and stably lift the battery cover plate, and the number of the ejector pins 6 can be flexibly adjusted, and the embodiment is not limited in this regard.

[0062] Obviously, the above-mentioned embodiments of the utility model are only examples for clearly explaining the utility model, and are not the limitation of the embodiments of the utility model. For ordinary skilled in the art, various obvious changes, re-adjustment and replacement can be made without departing from the protection scope of the utility model. Here, it is not necessary and impossible to exhaust all the embodiments. Any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A four-station two-color injection molding machine characterized by, The utility model relates to a four-station double-color injection molding machine, which comprises: an injection molding machine body; an injection mechanism (1) comprising two injection barrels, both of which are arranged on the injection molding machine body and used for conveying rubber material; a rotating disc (2) arranged below the injection barrels, wherein the end surface of the rotating disc (2) is circumferentially provided with four stations (21) facing the injection barrels; an upper mold (3) mounted on the injection molding machine body and connected with the injection barrels, and a lower mold (4) arranged on the rotating disc (2), wherein the upper mold (3) is connected with a driving member used for driving the upper mold (3) to move in the direction of moving downward to approach or upward to move away from the lower mold (4), and the rotating disc (2) is rotationally connected with the injection molding machine body.

2. The four-station two-color injection molding machine according to claim 1, characterized in that, The upper mold (3) is provided with a first accommodating groove (31) used for accommodating an injection molded part, and the lower mold (4) is provided with a second accommodating groove (41) used for accommodating a battery cover plate.

3. The four-station two-color injection molding machine according to claim 2, characterized in that The four-station double-color injection molding machine further comprises a blowing mechanism (5) comprising a blowing nozzle (51), wherein the blowing nozzle (51) is connected with the upper mold (3), and the output end of the blowing nozzle (51) is arranged toward the lower mold (4).

4. The four-station two-color injection molding machine according to claim 3, characterized in that, Each of the first accommodating grooves (31) is correspondingly provided with one blowing nozzle (51).

5. The four-station two-color injection molding machine of claim 3, wherein, The blowing mechanism (5) further comprises a gas conveying pipe (52) in communication with the blowing nozzle (51), wherein the gas conveying pipe (52) is arranged inside the upper mold (3).

6. The four-station two-color injection molding machine of claim 3, wherein, The injection mechanism (1) further comprises a hot runner (11) in communication with the injection barrels, wherein the output end of the hot runner (11) is arranged toward the lower mold (4), and the hot runner (11) is correspondingly arranged with the blowing nozzle (51).

7. The four-station two-color injection molding machine of claim 6, wherein, The hot runner (11) is arranged inside the upper mold (3), and the output end of the hot runner (11) is located in the first accommodating groove (31).

8. The four-station two-color injection molding machine of claim 2, wherein, The four-station double-color injection molding machine further comprises a ejector rod (6) slidably connected with the lower mold (4), wherein the projection of the ejector rod (6) in the height direction of the lower mold (4) is located inside the projection of the second accommodating groove (41) in the height direction of the lower mold (4).

9. The four-station two-color injection molding machine of claim 8, wherein, The ejector rod (6) is provided with a plurality of ejector rods (6) symmetrically arranged on the lower mold (4).

10. The four-station two-color injection molding machine of claim 8, wherein, The second accommodating groove (41) is provided with a plurality of second accommodating grooves (41), and each of the second accommodating grooves (41) is correspondingly provided with three groups of ejector rods (6), and the three groups of ejector rods (6) are uniformly and interval arranged along the length direction of the second accommodating groove (41).

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