A forming die for a generator rear cover

Abstract

The utility model relates to a kind of forming mould of generator rear cover shell, including respectively front and rear setting and mutually cooperating mould assembly and base module, fixed in the back side of base module bottom plate, and the pusher device between bottom plate and base module is equipped;Mould assembly includes the first moving module of being movably connected in the front side of base module to have front and rear translation function, the second moving module of being movably connected in the front side of first moving module to have front and rear translation function, end plate fixed in the front side of second moving module, and the shaping die core of being embedded in the inside of first moving module front side and with second moving module mutually cooperate;Shaping die core and first moving module between still be equipped with composite forming unit;The utility model reduces the manufacturing cost of mould, and also simplifies the machining and installation process of mould, also reduces debugging and overhaul frequency.

Description

Technical Field

[0001] This utility model relates to a molding die for a generator rear cover. Background Technology

[0002] The generator rear cover is a protective device installed at the rear of the generator housing. Its main function is to protect the equipment and ensure its normal operation. It is usually made of metal (such as steel) or high-strength plastic. Like other plastic parts, the manufacturing process of the generator rear cover made of plastic depends on the matching injection mold and the corresponding injection molding machine.

[0003] Because the generator rear cover has an L-shaped structure with grooves and clips on two perpendicular inner walls, there are two perpendicular directions for core pulling in the mold. Most existing injection molds for generator rear covers use a cylinder to complete one of the core pulling actions. Although this solves the problem, it increases the manufacturing cost of the mold and makes the processing and installation of the mold more complicated, as a pressure system and air pipeline that work with the cylinder must be added. In addition, the frequency of debugging and maintenance is also higher. Therefore, further improvements are needed. Utility Model Content

[0004] In view of the current state of the prior art, the technical problem to be solved by this utility model is to provide a forming mold for the generator rear cover that reduces the manufacturing cost of the mold, simplifies the processing and installation of the mold, and reduces the frequency of debugging and maintenance.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problem is as follows: a molding die for a generator rear cover, comprising a moving mold assembly and a base module respectively arranged at the front and rear and cooperating with each other, a base plate fixed to the rear side of the base module, and a pushing device disposed between the base plate and the base module, characterized in that:

[0006] The moving mold assembly includes a primary moving module movably connected to the front side of the base module to have a forward and backward translation function, a secondary moving module movably connected to the front side of the primary moving module to have a forward and backward translation function, an end plate fixed to the front side of the secondary moving module, and a shaping mold core embedded inside the front side of the primary moving module and cooperating with the secondary moving module.

[0007] A positioning cavity is provided on the rear outer wall of the secondary moving module. Correspondingly, a main forming block is formed on the outer wall of the shaping mold core facing the secondary moving module, which cooperates with the positioning cavity. A guide cavity is provided between the two corners above the end of the main forming block and the root outer wall of the shaping mold core.

[0008] A composite molding unit is also provided between the shaping mold core and the first-level moving module. The composite molding unit includes two inner core-pulling modules that are respectively inserted into the two guide cavities and symmetrically distributed on the left and right.

[0009] The inner core-pulling module includes a transition block and an inner core-pulling block movably connected to the top of the transition block to enable forward and backward tilting movement. The rear side of the transition block is fixed to the base module, and the rear side of the inner core-pulling block is movably connected to the primary moving module to enable vertical movement up and down.

[0010] Preferably, the composite molding unit further includes an outer core-pulling module located above the main molding block and cooperating with both inner core-pulling modules. The outer core-pulling module includes a lifting block movably connected to the primary moving module to have vertical movement function and located above the shaping mold core, and at least two guide rods inclined and interspersed in the lifting block and distributed in parallel from left to right. The front end of each guide rod is fixed on the secondary moving module.

[0011] Preferably, a U-shaped forming groove is provided on the side of the lifting block facing the main forming block, and a corner forming block is formed on the front side of each of the two inner core pulling modules. The upper outer wall of the two corner forming blocks respectively cooperates with the inner wall of the two corners inside the U-shaped forming groove.

[0012] Preferably, a forming cavity is formed on the bottom surface of the positioning cavity, and correspondingly, a forming protrusion that cooperates with the forming cavity is formed on the end face of the main forming block in the direction of the positioning cavity.

[0013] Preferably, an L-shaped protrusion is formed between the upper side of the forming protrusion and the front outer wall. Correspondingly, a rectangular cavity is formed on the upper edge of the bottom surface of the forming cavity, and a groove is formed on the bottom surface of the U-shaped forming groove. The rectangular cavity and the front outer wall of the L-shaped protrusion cooperate with each other, and the groove and the upper outer wall of the L-shaped protrusion cooperate with each other.

[0014] Preferably, an L-shaped cavity is formed between the front side and the upper inner wall of the L-shaped protrusion. Correspondingly, a first rectangular protrusion is formed on the upper edge of the bottom surface of the rectangular cavity, and a second rectangular protrusion is formed downward on the bottom surface of the groove. The first rectangular protrusion cooperates with the front inner wall of the L-shaped cavity, and the second rectangular protrusion cooperates with the upper inner wall of the L-shaped cavity.

[0015] Compared with the prior art, the advantages of this utility model are as follows: This utility model can realize two mutually perpendicular core pulling actions simultaneously by means of a composite molding unit and a two-stage mold closing process with a primary moving module and a secondary moving module without the need to install any cylinders. This reduces the manufacturing cost of the mold, simplifies the processing and installation of the mold, and also reduces the frequency of debugging and maintenance. Attached Figure Description

[0016] The above and other features, advantages, and aspects of the embodiments of this application will become more apparent when taken in conjunction with the accompanying drawings and the following detailed description; throughout the drawings, the same or similar reference numerals denote the same or similar elements; it should be understood that the drawings are schematic, and the originals and elements are not necessarily drawn to scale; in the drawings:

[0017] Figure 1 This is an exploded view of the right front side of this utility model;

[0018] Figure 2 This is an exploded view of the right front side of the shaping mold core and the two inner core-pulling modules of this utility model.

[0019] Figure 3 This is a structural diagram of the left rear side of the secondary moving module of this utility model;

[0020] Figure 4 This is an exploded view of the left rear side of the primary moving module, the shaping mold core, and the two inner core-pulling modules of this utility model.

[0021] Figure 5 This is a structural diagram of the left rear side of the external core-pulling module of this utility model. Detailed Implementation

[0022] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0023] To keep the following description of the embodiments of this utility model clear and concise, detailed descriptions of known functions and known components are omitted.

[0024] like Figures 1-5 As shown, a molding die for a generator rear cover includes a moving mold assembly and a base module 10 respectively arranged in front and behind and cooperating with each other, a base plate 4 fixed to the rear side of the base module 10, and a pushing device 5 disposed between the base plate 4 and the base module 10.

[0025] The moving mold assembly includes a primary moving module 2 movably connected to the front of the base module 10 to have a forward and backward translation function, a secondary moving module 1 movably connected to the front of the primary moving module 2 to have a forward and backward translation function, an end plate 3 fixed to the front of the secondary moving module 1, and a shaping mold core 6 embedded inside the front of the primary moving module 2 and cooperating with the secondary moving module 1.

[0026] A positioning cavity 11 is provided on the rear outer wall of the secondary moving module 1. Correspondingly, a main forming block 65 is formed on the outer wall of the shaping mold core 6 facing the secondary moving module 1, which cooperates with the positioning cavity 11. A guide cavity 64 is provided between the two corners above the end of the main forming block 65 and the root outer wall of the shaping mold core 6.

[0027] A composite molding unit is also provided between the shaping mold core 6 and the first-level moving module 2. The composite molding unit includes two inner core pulling modules that are respectively inserted into the two guide cavities 64 and symmetrically distributed on the left and right.

[0028] The inner core-pulling module includes a transition block 8 and an inner core-pulling block 7 movably connected to the top of the transition block 8 to enable forward and backward tilting movement. The rear side of the transition block 8 is fixed to the base module 10, and the rear side of the inner core-pulling block 7 is movably connected to the primary moving module 2 to enable vertical movement up and down.

[0029] The composite molding unit also includes an outer core-pulling module 9 located above the main molding block 65 and cooperating with both inner core-pulling modules. The outer core-pulling module 9 includes a lifting block 91 movably connected to the primary moving module 2 to have vertical movement function and located above the shaping mold core 6, and at least two guide rods 92 that are inclined and interspersed in the lifting block 91 and are distributed in parallel from left to right. The front end of each guide rod 92 is fixed on the secondary moving module 1.

[0030] A U-shaped forming groove 911 is provided on the side of the lifting block 91 facing the main forming block 65. A corner forming block 71 is formed on the front side of the inner core pulling block 7 in the two inner core pulling modules. The upper outer wall of the two corner forming blocks 71 respectively cooperates with the inner wall of the two corners inside the U-shaped forming groove 911.

[0031] A forming cavity 12 is provided on the bottom surface of the positioning cavity 11. Correspondingly, a forming protrusion 61 is formed on the end face of the main forming block 65 in the direction of the positioning cavity 11, which cooperates with the forming cavity 12.

[0032] An L-shaped protrusion 62 is formed between the upper side of the forming protrusion 61 and the front outer wall. Correspondingly, a rectangular cavity 13 is formed on the upper edge of the bottom surface of the forming cavity 12, and a groove 912 is formed on the bottom surface of the U-shaped forming groove 911. The rectangular cavity 13 and the front outer wall of the L-shaped protrusion 62 cooperate with each other, and the groove 912 and the upper outer wall of the L-shaped protrusion 62 cooperate with each other.

[0033] An L-shaped cavity 63 is formed between the front side and the upper inner wall of the L-shaped protrusion 62. Correspondingly, a first rectangular protrusion 14 is formed on the upper edge of the bottom surface of the rectangular cavity 13, and a second rectangular protrusion 913 is formed downward on the bottom surface of the groove 912. The first rectangular protrusion 14 cooperates with the front inner wall of the L-shaped cavity 63, and the second rectangular protrusion 913 cooperates with the upper inner wall of the L-shaped cavity 63.

[0034] Two first recessed cavities 21 are symmetrically distributed on the rear outer wall of the first-level moving module 2. A guide hole 22 is provided between the bottom surface of each first recessed cavity 21 and the lower inner wall. The two inner core-pulling modules are respectively inserted into the two guide holes 22.

[0035] An inverted U-shaped limiting cavity 23 is provided between the upper side of the rear opening of the two guide holes 22 and between the left and right side edges. Correspondingly, the rear edge of the inner core pulling block 7 in the two inner core pulling modules forms an inverted U-shaped flange 72. The U-shaped flanges 72 on the two inner core pulling blocks 7 are movably connected in the two U-shaped limiting cavities 23 so that they both have the function of vertical movement up and down.

[0036] On the bottom surface of the rectangular cavity 13, two first ribs symmetrically arranged are formed outward. Each first rib rib 15 includes multiple first ribs 15 arranged horizontally and of different lengths and distributed in parallel from top to bottom.

[0037] Two symmetrically arranged second ribs are formed on the end face of the first rectangular protrusion 14. Each second rib assembly includes multiple horizontally arranged second ribs 16 that are arranged in parallel from top to bottom.

[0038] Working principle:

[0039] The secondary moving module 1 and the primary moving module 2 in the moving mold assembly are both installed on the action mechanism of the injection molding machine. Then, the base plate 4 is installed on the body of the injection molding machine. The action mechanism is operated to first drive the primary moving module 2 to move backward until the rear outer wall of the primary moving module 2 and the front outer wall of the base module 10 are joined together (existing technology).

[0040] During the above process, the inner core pulling blocks 7 in the two inner core pulling modules will move synchronously with the first-level moving module 2, and the front sides of the transition blocks 8 in the two inner core pulling modules will gradually be inserted into the two guide cavities 64, thereby forcing the two inner core pulling blocks 7 to move upward until the front outer wall and upper outer wall of each inner core pulling block 7 are respectively spliced ​​with the front outer wall and upper outer wall of the main forming block 65.

[0041] Next, the action mechanism is manipulated to drive the secondary moving module 1 to move backward until the rear outer wall of the secondary moving module 1 and the front outer wall of the primary moving module 2 are joined together. During this process, each guide rod 92 in the outer core-pulling module 9 will move synchronously with the secondary moving module 1, thereby forcing the lifting block 91 to move downward until the U-shaped forming groove 911 covers the upper outside of the main forming block 65 and the two inner core-pulling blocks 7.

[0042] Subsequently, the molten material enters the positioning cavity 11 and the main forming block 65 through the gate in the end plate 3 and the sprue in the secondary moving module 1. After cooling, it forms an L-shaped generator rear cover (existing technology).

[0043] Then, the secondary moving module 1 is driven forward by the action mechanism to move away from the primary moving module 2. Similarly, the lifting block 91 is driven to move up and reset. Then, the primary moving module 2 is driven forward by the action mechanism to move away from the base module 10. Similarly, the two inner core-pulling blocks 7 are driven to move down and reset. Finally, the generator rear cover is pushed forward by the pushing device 5 (existing technology).

[0044] This invention can simultaneously realize two mutually perpendicular core-pulling actions without the need for any cylinders by using a composite molding unit and a two-stage mold closing process with a primary moving module 2 and a secondary moving module 1. This reduces the manufacturing cost of the mold, simplifies the processing and installation of the mold, and also reduces the frequency of debugging and maintenance.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A molding die for a generator rear cover, comprising a moving mold assembly and a base module respectively arranged front and rear and cooperating with each other, a base plate fixed to the rear side of the base module, and a pushing device disposed between the base plate and the base module, characterized in that: The moving mold assembly includes a primary moving module movably connected to the front side of the base module to have a forward and backward translation function, a secondary moving module movably connected to the front side of the primary moving module to have a forward and backward translation function, an end plate fixed to the front side of the secondary moving module, and a shaping mold core embedded inside the front side of the primary moving module and cooperating with the secondary moving module. A positioning cavity is provided on the rear outer wall of the secondary moving module. Correspondingly, a main forming block is formed on the outer wall of the shaping mold core facing the secondary moving module, which cooperates with the positioning cavity. A guide cavity is provided between the two corners above the end of the main forming block and the root outer wall of the shaping mold core. A composite molding unit is also provided between the shaping mold core and the first-level moving module. The composite molding unit includes two inner core-pulling modules that are respectively inserted into the two guide cavities and symmetrically distributed on the left and right. The inner core-pulling module includes a transition block and an inner core-pulling block movably connected to the top of the transition block to enable forward and backward tilting movement. The rear side of the transition block is fixed to the base module, and the rear side of the inner core-pulling block is movably connected to the primary moving module to enable vertical movement up and down.

2. The molding die for a generator rear cover according to claim 1, characterized in that, The composite molding unit also includes an outer core-pulling module located above the main molding block and cooperating with both inner core-pulling modules. The outer core-pulling module includes a lifting block movably connected to the primary moving module to have vertical movement function and located above the shaping mold core, and at least two guide rods that are inclined and interspersed in the lifting block and distributed in parallel from left to right. The front end of each guide rod is fixed on the secondary moving module.

3. The forming mold for a generator rear cover according to claim 2, characterized in that, The lifting block has a U-shaped forming groove on the side facing the main forming block. The front side of the inner core pulling block in the two inner core pulling modules forms a corner forming block. The upper outer wall of the two corner forming blocks respectively cooperates with the inner wall of the two corners inside the U-shaped forming groove.

4. The molding die for a generator rear cover according to claim 3, characterized in that, A forming cavity is formed on the bottom surface of the positioning cavity, and correspondingly, a forming protrusion is formed on the end face of the main forming block in the direction of the positioning cavity, which cooperates with the forming cavity.

5. The forming mold for a generator rear cover according to claim 4, characterized in that, An L-shaped protrusion is formed between the upper side and the front outer wall of the forming protrusion. Correspondingly, a rectangular cavity is formed on the upper edge of the bottom surface of the forming cavity, and a groove is formed on the bottom surface of the U-shaped forming groove. The rectangular cavity and the front outer wall of the L-shaped protrusion cooperate with each other, and the groove and the upper outer wall of the L-shaped protrusion cooperate with each other.

6. The molding die for a generator rear cover according to claim 5, characterized in that, An L-shaped cavity is formed between the front side and the upper inner wall of the L-shaped protrusion. Correspondingly, a first rectangular protrusion is formed on the upper edge of the bottom surface of the rectangular cavity, and a second rectangular protrusion is formed downward on the bottom surface of the groove. The first rectangular protrusion cooperates with the front inner wall of the L-shaped cavity, and the second rectangular protrusion cooperates with the upper inner wall of the L-shaped cavity.

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