Slide structure for injection molding production of pen-shaped shell

Abstract

The utility model relates to the technical field of injection molds, in particular to a slide structure for injection molding production of a pen-shaped shell, which comprises a mold core assembly with an injection molding cavity, and a slide glue inlet assembly mounted on one side of the mold core assembly and used for injecting plastic hot flow into the injection molding cavity, the inner shrinkage slide assembly is mounted on the other side of the mold core assembly; the inner shrinkage slide assembly is provided with a pen-shaped inner core, and the pen-shaped inner core is arranged in the injection molding cavity in a penetrating manner, so that the pen-shaped inner core is matched with the mold core assembly, and a pen-shaped shell is produced through injection molding. In conclusion, through the design of the inward shrinkage slide assembly and the exquisite design of the connecting and sliding mechanism, the precise control over the inner core in the injection molding process of the pen-shaped shell is achieved, the matching precision of the inner core and the mold core in the injection molding process is improved, and the production efficiency is also improved. Through the combination of elements such as the slide oil cylinder, the slide block and the slide rail, the whole structure is more compact, the operation is simpler and more convenient, and the manual intervention and the operation complexity are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of injection mold, especially to a line position structure for injection molding production of pen-shaped shell. BACKGROUND

[0002] In the field of plastic product manufacturing, injection molding is one of the most common processes, widely used in the production of various products, especially daily necessities and office supplies, such as the shell of a stylus. With the market's increasing demand for product quality, production efficiency and cost, the industry urgently needs a more efficient, accurate and economical injection molding production process and line position structure to improve the molding precision and production efficiency of pen-shaped shell plastic products.

[0003] Traditional injection molding methods often have the disadvantages of long injection cycle, complex mold change, and inflexible line position structure. For example, in the production of pen-shaped shells, precise inner core alignment and efficient glue flow control are often required. The combination of different materials and the design of the inner core often affect the quality and efficiency of the finished product during production.

[0004] The injection molding production of pen-shaped shells involves intricate structural design and high-level mechanical processing. In particular, when performing simultaneous operations of inner shrinkage and glue injection, existing technologies are difficult to meet the requirements of product consistency and appearance quality. This has prompted more researchers and enterprises to invest resources to find improvement solutions to enhance the flexibility and adaptability of injection molding technology.

[0005] The utility model scheme can reasonably utilize the design of the inner shrinkage line position assembly, effectively solving the technical problems of position precision and glue flow control during inner core cooperation. UTILITY MODEL CONTENT

[0006] The utility model is aimed at providing a technical solution that can solve the above problems.

[0007] The utility model provides a line position structure for injection molding production of pen-shaped shells, comprising a mold core assembly with an injection cavity, a line position glue feeding assembly installed on one side of the mold core assembly for injecting plastic hot flow into the injection cavity, and an inner shrinkage line position assembly installed on the other side of the mold core assembly; the inner shrinkage line position assembly is provided with a pen-shaped inner core, which is arranged in the injection cavity and cooperates with the mold core assembly to produce a pen-shaped shell through injection molding.

[0008] As a further scheme of the utility model: the inner retraction row position assembly is equipped with a row position seat, a row position stopper, a first sliding block and a row position oil cylinder, one end of the row position stopper is fixedly connected to the row position seat, the other end of the row position oil cylinder is fixedly connected to the row position seat, the first sliding block is slidingly connected to the row position seat, one end of the pen-shaped inner core is arranged in the row position stopper and extends to the inside of the mould core assembly by a certain length, and the other end of the pen-shaped inner core is drivingly connected to one side of the first sliding block, and the other side of the first sliding block is drivingly connected to the piston end of the row position oil cylinder.

[0009] As a further scheme of the utility model: the inner retraction row position assembly is equipped with a second sliding block, the inside of the pen-shaped inner core is further equipped with an inner retraction insert, an inner retraction sliding block and an inner retraction pull rod, one side of the second sliding block is drivingly connected to the piston end of the row position oil cylinder, the other side of the second sliding block is drivingly connected to one end of the inner retraction pull rod, the other end of the inner retraction pull rod is arranged in the inside of the pen-shaped inner core and is drivingly connected to the inner retraction sliding block, and the inner retraction insert is fixedly connected to one end of the inner retraction sliding block away from the inner retraction pull rod.

[0010] As a further scheme of the utility model: one side of the inner retraction pull rod connected to the inner retraction sliding block is equipped with a T-shaped sliding rail, the inner retraction sliding block is equipped with a T-shaped groove corresponding to the position of the T-shaped sliding rail, the T-shaped groove is sleeved on the T-shaped sliding rail, so that the T-shaped sliding rail and the T-shaped groove are slidingly connected to each other, and the T-shaped sliding rail is inclinedly arranged, so that the inner retraction sliding block moves a certain distance in the direction of the central axis of the pen-shaped inner core under the drive of the T-shaped sliding rail.

[0011] As a further scheme of the utility model: the inner retraction row position assembly is further equipped with a yielding bolt, the yielding bolt is fixedly connected to the first sliding block, the head of the yielding bolt extends to the second sliding block, the second sliding block is equipped with a yielding counterbore corresponding to the position of the yielding bolt, and the head of the yielding bolt forms a free end in the yielding counterbore.

[0012] As a further scheme of the utility model: the inner retraction row position assembly is further equipped with a first shovel base, one end of the first shovel base is fixedly connected to the front mould plate, and the other end of the first shovel base abuts against the second sliding block.

[0013] As a further scheme of the utility model: the row position glue feeding assembly is equipped with a flow channel sliding block, a second shovel base and an inclined guide column, the inclined guide column is fixedly connected to the second shovel base, one end of the flow channel sliding block is equipped with a flow channel gate, the other end of the flow channel sliding block is equipped with an inclined guide hole, the inclined guide column is arranged in the inclined guide hole, so that the inclined guide column can drive the flow channel sliding block to move a certain distance away from the injection mould cavity, and then the flow channel gate is separated from the injection mould cavity.

[0014] As a further scheme of the utility model: the utility model further includes an ejection system, the ejection system is equipped with a push rod and an ejector plate, one end of the push rod is fixedly connected to the ejector plate, and the other end of the push rod is fixedly connected to the row position seat.

[0015] Compared with the prior art, the pen-shaped shell and the pen-shaped inner core are separated from each other.

[0016] The utility model discloses through design inner retraction row position subassembly, and carry out ingenious connection and sliding mechanism design, realized the accurate control of inner core in the injection molding process of pen -shaped shell, not only improved the cooperation precision of inner core and mould in the injection process, also help to promote production efficiency. Through the combination of row position oil cylinder, sliding block and slide rail etc. Element, make the overall structure more compact, the operation is more simple, reduce manual intervention and operation complexity.

[0017] The additional aspects and advantages of the utility model will be partly given in the following description, some will become obvious from the following description, or be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be briefly introduced to the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description is only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying the creativity labor intensity, still can obtain other drawings according to these drawings.

[0019] Figure 1 It is the structure schematic diagram of the ejection system and the inner retraction row position subassembly of the utility model;

[0020] Figure 2 It is the structure schematic diagram of the row position seat and the row position stop block of the utility model;

[0021] Figure 3 It is the structure schematic diagram of the pen-shaped inner core and the second sliding block in the state of being connected with each other;

[0022] Figure 4 It is the structure schematic diagram of the inner retraction sliding block and T-shaped slide rail in the state of being separated from each other;

[0023] Figure 5 It is the structure schematic diagram of the pen-shaped inner core and the inner retraction pull rod in the state of being separated from each other;

[0024] Figure 6 It is the structure schematic diagram of the row position glue feeding assembly of the utility model;

[0025] Figure 7 It is the structure schematic diagram of the inner retraction row position subassembly of the utility model in the state of being ejected;

[0026] Figure 8 It is the structure schematic diagram of the pen-shaped shell and the pen-shaped inner core in the state of being separated from each other.

[0027] The reference signs and names in the drawing are as follows:

[0028] 10 mold assembly; 11 front mold core; 12 rear mold core; 20 retraction assembly; 21 first base; 22 pen-shaped inner core; 23 retraction insert; 24 retraction slider; 25 T-shaped groove; 26 retraction rod; 27 T-shaped slide rail; 28 retraction guide block; 30 position seat; 31 position block; 32 first slider; 33 position oil cylinder; 34 second slider; 35 retraction hole; 36 retraction bolt; 40 position assembly; 41 runner slider; 42 runner gate; 43 inclined guide hole; 44 second base; 45 inclined guide column; 50 ejection system; 51 push rod; 52 push plate; 53 rear mold plate; 54 rear mold fixing plate; 55 cooling system; 56 pouring system; 60 pen-shaped shell. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0030] Please refer to Figures 1 to 8 In the embodiments of the present application, a position structure for injection molding a pen-shaped shell includes a mold assembly 10 formed with an injection cavity, a position assembly 40 installed on one side of the mold assembly 10 for injecting plastic hot flow into the injection cavity, and a retraction assembly 20 installed on the other side of the mold assembly 10. The retraction assembly 20 is provided with a pen-shaped inner core 22, which is arranged in the injection cavity and cooperates with the mold assembly 10 to produce the pen-shaped shell 60 by injection molding.

[0031] Specifically, in order to injection mold the pen-shaped shell 60, the pen-shaped inner core 22 is arranged in the injection cavity formed by the mold assembly 10, so that it can be arranged in the injection cavity and cooperate with the mold assembly 10 to form a corresponding injection cavity, thereby completing the injection molding operation of the pen-shaped shell 60.

[0032] Secondly, the mold core assembly 10 can include a front mold core 11 and a rear mold core 12 which are abutted to form an injection cavity. In order to cool the pen-shaped shell 60 from the inside, a cooling system 55 can also be arranged inside the pen-shaped inner core 22, so that the plastic hot flow injected by the pouring system 56 can be rapidly cooled and shaped under the cooling action of the cooling system 55. The row position structure in the application can be part of the overall mold, which is combined with other systems of the overall mold to form a complete production mold for injection molding of the pen-shaped shell 60. Other systems also include rear mold fixing plates 54, front mold fixing plates, guide systems, core-pulling systems or exhaust systems and other related structures or devices in the existing injection molding field.

[0033] Thirdly, by designing the retracted row position assembly 20 and designing the delicate connection and sliding mechanism, precise control of the inner core during the injection molding process of the pen-shaped shell 60 is achieved, which not only improves the cooperation accuracy of the inner core and the mold core during injection molding, but also helps to improve production efficiency.

[0034] As shown in Figure 2 Preferably, the retracted row position assembly 20 is provided with a row position seat 30, a row position stopper 31, a first sliding block 32 and a row position oil cylinder 33. The row position stopper 31 is fixedly connected to one end of the row position seat 30, the row position oil cylinder 33 is fixedly connected to the other end of the row position seat 30, the first sliding block 32 is slidingly connected to the row position seat 30, one end of the pen-shaped inner core 22 is arranged in the row position stopper 31 and extends a certain length into the mold core assembly 10, and the other end is drivingly connected to one side of the first sliding block 32. The other side of the first sliding block 32 is drivingly connected to the piston end of the row position oil cylinder 33.

[0035] Specifically, the row position oil cylinder 33 operates to drive the first sliding block 32 to move a certain distance away from the mold core assembly 10, so that the first sliding block 32 drives the pen-shaped inner core 22 to move a certain distance away from the injection cavity, and then the pen-shaped inner core 22 is separated from the injection cavity. That is, the pen-shaped shell 60 after injection molding is separated from the outer side wall of the pen-shaped inner core 22, and under the blocking and separating action of the row position stopper 31, the pen-shaped shell 60 completes the demolding operation.

[0036] As shown in Figure 3 Preferably, the retracted row position assembly 20 is also provided with a second sliding block 34, the interior of the pen-shaped inner core 22 is also provided with a retracted insert 23, a retracted sliding block 24 and a retracted pull rod 26, one side of the second sliding block 34 is drivingly connected to the piston end of the row position oil cylinder 33, the other side of the second sliding block 34 is drivingly connected to one end of the retracted pull rod 26, the other end of the retracted pull rod 26 is arranged in the interior of the pen-shaped inner core 22 and drivingly connected to the retracted sliding block 24, and the retracted insert 23 is fixedly connected to one end of the retracted sliding block 24 away from the retracted pull rod 26.

[0037] Specifically, the inner retraction rod 26 is driven by the row position oil cylinder 33 to move a certain distance away from the pen-shaped inner core 22, and drives the inner retraction slider 24 to move a certain distance in the radial direction of the pen-shaped inner core 22, forming an inner retraction state, so that the inner retraction insert 23 moves inward to separate from the outer wall of the pen-shaped inner core 22, and then separates from the corresponding inner recess or inner groove of the injection molded pen-shaped shell 60, completing the disengagement operation of the inner retraction insert 23.

[0038] Secondly, in order to make the movement trajectory of the inner retraction rod 26 more accurate when moving inside the pen-shaped inner core 22, an extraction rod guide block 28 is arranged at the open end of the pen-shaped inner core 22, which has a corresponding through hole inside to form a sliding groove, facilitating smooth movement of the inner retraction rod 26.

[0039] As shown in Figures 3 to 5 Preferably, one side of the inner retraction rod 26 connected to the inner retraction slider 24 is provided with a T-shaped sliding rail 27, and the inner retraction slider 24 is provided with a T-shaped groove 25 corresponding to the position of the T-shaped sliding rail 27, and the T-shaped groove 25 is sleeved on the T-shaped sliding rail 27, so that they cooperate with each other to form a sliding connection; and the T-shaped sliding rail 27 is inclinedly arranged, so that the inner retraction slider 24 moves a certain distance in the direction of the central axis of the pen-shaped inner core 22 under the drive of the T-shaped sliding rail 27.

[0040] Specifically, in order to drive the inner retraction slider 24 to move inward, an inclined T-shaped sliding rail 27 is arranged on the inner retraction rod 26, which can drive the inner retraction slider 24 to move inward by limiting and driving the T-shaped groove 25, forming an inner retraction state and completing the disengagement operation of the inner retraction insert 23.

[0041] As shown in Figure 4 Preferably, the inner retraction row assembly 20 is also provided with a let-out bolt 36, the let-out bolt 36 is fixedly connected to the first slider 32, and the head of the let-out bolt 36 extends to the second slider 34, and the second slider 34 is provided with a let-out counterbore 35 corresponding to the position of the let-out bolt 36, so that the head of the let-out bolt 36 forms a free end in the let-out counterbore 35.

[0042] Specifically, since the piston end of the row position oil cylinder 33 is in transmission connection with the second slider 34, and the second slider 34 is in transmission connection with the inner retraction rod 26, after the row position oil cylinder 33 operates, it can first drive the second slider 34 and the inner retraction rod 26 to move, so that the inner retraction slider 24 moves inward under the drive of the T-shaped sliding rail 27 of the inner retraction rod 26, thereby driving the inner retraction insert 23 to separate from the corresponding part of the pen-shaped shell 60, completing the disengagement operation of the inner retraction insert 23.

[0043] Subsequently, the row bit oil cylinder 33 continues to operate, continuously driving the second slider 34 to move, so that the step bit of the second slider 34 is in abutment with the head of the bit bolt 36, thereby driving the bit bolt 36 to move synchronously with the first slider 32. The first slider 32 is in transmission connection with the pen-shaped inner core 22, so as to drive the pen-shaped inner core 22 to move out of the mold and separate from the inner wall of the pen-shaped shell 60 formed by injection molding.

[0044] As shown in Figure 2 , preferably, the inner shrinkage row component 20 is also provided with a first shovel base 21, one end of the first shovel base 21 is fixedly connected to the front mold plate, and the other end is in abutment with the second slider 34.

[0045] Specifically, in order to make the first slider 32 and the second slider 34 tightly adhere to each other after the mold is closed, a first shovel base 21 can also be provided, which is used to press the slider by using its slope structure.

[0046] As shown in Figure 6 , preferably, the row bit glue feeding assembly 40 is provided with a flow channel slider 41, a second shovel base 44 and an inclined guide column 45, the inclined guide column 45 is fixedly connected to the second shovel base 44, one end of the flow channel slider 41 close to the injection cavity is provided with a flow channel gate 42, and the other end is provided with an inclined guide hole 43, the inclined guide column 45 is arranged in the inclined guide hole 43, so that the inclined guide column 45 can drive the flow channel slider 41 to move a certain distance away from the injection cavity, and then the flow channel gate 42 is separated from the injection cavity.

[0047] Specifically, in order to avoid the appearance of gate position on the outer wall of the pen-shaped shell 60, it is preferred to set the row bit glue feeding assembly 40 at the tip of the stylus, and use the flow channel gate 42 arranged in the flow channel slider 41 to inject hot melt plastic flow into the injection cavity, thereby completing the corresponding injection operation. During the mold opening process, the inclined guide column 45 and the inclined guide hole 43 can be used to drive the flow channel slider 41 to separate from the pen-shaped shell 60 formed by injection molding, thereby completing the corresponding demolding operation.

[0048] As shown in Figure 1 and Figure 7 , preferably, it also includes an ejection system 50, the ejection system 50 is provided with a push rod 51 and a push plate 52, one end of the push rod 51 is fixedly connected to the push plate 52, and the other end is fixedly connected to the row bit seat 30.

[0049] Specifically, when the mold is opened, the push rod 51 can push the row seat 30 out under the pushing action of the push plate 52, so that the row seat 30 is separated from the back mold plate 53, and the pen-shaped shell 60 after injection molding can also be driven to separate from the back mold core 12. Subsequently, the row oil cylinder 33 starts to operate, first drives the inner shrinkable rod 26 to move a certain distance, thereby driving the inner shrinkable insert 23 to move in the inner shrinkage demolding mode. Subsequently, the pen-shaped inner core 22 is continuously driven to move a certain distance away from the injection molding cavity, so as to realize the demolding operation of the pen-shaped inner core 22. At the same time, under the blocking action of the row stopper 31, the pen-shaped shell 60 after injection molding is blocked at the position of the row stopper 31, and when the pen-shaped inner core 22 is pulled away, the pen-shaped shell 60 can fall downward under the action of gravity, thereby realizing the demolding operation of the plastic product.

[0050] In another embodiment, as shown in Figure 8 Preferably, in order to better arrange and layout the entire mold, the installation direction of the entire mold can also be adjusted. When the row oil cylinder 33 is arranged below and the mold core assembly 10 is arranged above, after the pen-shaped shell 60 is completed after injection molding, the pen-shaped inner core 22 is driven to exit from the inside of the pen-shaped shell 60 under the driving of the row oil cylinder 33 and the first sliding block 32, and then a mechanical arm gripper can be used to take the pen-shaped shell 60, so that the pen-shaped shell 60 can be moved upward and separated from the pen-shaped inner core 22.

[0051] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.

Claims

1. A row structure for injection molding a pen-shaped shell, characterized in that, The utility model provides a pen-shaped shell injection moulding production line, which comprises a mould base assembly (10) provided with an injection cavity, a plastic injection assembly (40) arranged on one side of the mould base assembly (10) and used for injecting plastic melt into the injection cavity, and a retraction assembly (20) arranged on the other side of the mould base assembly (10).

2. A row structure for injection molding a pen-shaped case according to claim 1, wherein The retraction assembly (20) is provided with a retraction seat (30), a retraction stopper (31), a first sliding block (32) and a retraction oil cylinder (33), the retraction stopper (31) is fixed to one end of the retraction seat (30), the retraction oil cylinder (33) is fixed to the other end of the retraction seat (30), the first sliding block (32) is slidingly connected to the retraction seat (30), one end of the pen-shaped inner core (22) is arranged in the retraction stopper (31) and extends into the mould base assembly (10) by a certain length, and the other end of the pen-shaped inner core (22) is drivingly connected to one side of the first sliding block (32), and the other side of the first sliding block (32) is drivingly connected to the piston end of the retraction oil cylinder (33).

3. A row structure for injection molding a pen-shaped case according to claim 2, wherein The retraction assembly (20) is further provided with a second sliding block (34), the pen-shaped inner core (22) is further provided with a retraction insert (23), a retraction sliding block (24) and a retraction pull rod (26), one side of the second sliding block (34) is drivingly connected to the piston end of the retraction oil cylinder (33), the other side of the second sliding block (34) is drivingly connected to one end of the retraction pull rod (26), the other end of the retraction pull rod (26) is arranged in the pen-shaped inner core (22) and drivingly connected to the retraction sliding block (24), and the retraction insert (23) is fixed to the end of the retraction sliding block (24) away from the retraction pull rod (26).

4. A row structure for injection molding a pen-shaped case according to claim 3, wherein One side of the retraction pull rod (26) connected to the retraction sliding block (24) is provided with a T-shaped sliding rail (27), the retraction sliding block (24) is provided with a T-shaped groove (25) corresponding to the position of the T-shaped sliding rail (27), the T-shaped groove (25) is sleeved on the T-shaped sliding rail (27) to form sliding connection, and the T-shaped sliding rail (27) is inclined to drive the retraction sliding block (24) to move a certain distance along the central axis of the pen-shaped inner core (22).

5. A row structure for injection molding a pen-shaped case according to claim 3, wherein The retraction assembly (20) is further provided with a retraction bolt (36), the retraction bolt (36) is fixed to the first sliding block (32), the head of the retraction bolt (36) extends to the second sliding block (34), the second sliding block (34) is provided with a retraction counterbore (35) corresponding to the position of the retraction bolt (36), and the head of the retraction bolt (36) forms a free end in the retraction counterbore (35).

6. A row structure for injection molding a pen-shaped case according to claim 3, wherein The retraction assembly (20) is further provided with a first shovel base (21), one end of the first shovel base (21) is fixed to the front mould plate, and the other end of the first shovel base (21) abuts against the second sliding block (34).

7. A row structure for injection molding a pen-shaped case according to claim 1, wherein The row position glue assembly (40) is provided with a runner slider (41), a second shovel base (44) and an inclined guide column (45), the inclined guide column (45) is fixedly connected with the second shovel base (44), the runner slider (41) is provided with a runner gate (42) at one end close to the injection cavity, and the other end is provided with an inclined guide hole (43), the inclined guide column (45) is arranged in the inclined guide hole (43), so that the inclined guide column (45) can drive the runner slider (41) to move a certain distance away from the injection cavity, and then the runner gate (42) is separated from the injection cavity.

8. A row structure for injection molding a pen-shaped case according to claim 1, wherein Further comprising an ejection system (50), the ejection system (50) is provided with a push rod (51) and a push plate (52), one end of the push rod (51) is fixedly connected with the push plate (52), and the other end is fixedly connected with the row seat (30).

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