Metal insert installation reminding mechanism of injection mold

Abstract

The utility model relates to a metal insert mounting reminding mechanism of an injection mold. The metal insert mounting reminding mechanism comprises a movable mold main body and a movable mold push plate, the movable mold main body is provided with a cavity for arranging a metal insert, the movable mold main body is provided with a sliding channel on the bottom surface of the cavity, a limiting ejector pin is arranged at the sliding channel in a sliding manner, and the movable mold push plate is provided with a touch switch which is arranged corresponding to the limiting ejector pin; the limiting ejector pin is provided with a first station and a second station; when the limiting ejector pin is located at the first station, the top end of the limiting ejector pin is flush with the bottom surface of the cavity, and the bottom end of the limiting ejector pin triggers the touch switch; when the limiting ejector pin is located at the second station, the top end of the limiting ejector pin extends to the outer side of the sliding channel, and the bottom end of the limiting ejector pin is separated from the touch switch; and the movable mold main body is also provided with a locking assembly for locking the limiting ejector pin at the first station. The situation that when the metal insert in the injection molding product does not have the touch-through characteristic, the metal insert is not installed in place easily, and consequently the injection molding product is unqualified is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of injection molds, in particular to a metal insert installation reminding mechanism of an injection mold. BACKGROUND

[0002] The injection mold is a necessary production device in the injection molding process and is used for injecting and molding a molten plastic material into a specific injection product. At present, with the further development of the injection molding technology, a metal insert is installed in the injection mold, and then a molten plastic material is injected into the injection mold, so that the plastic material is combined with the metal part. When the surface of the metal insert does not have a knock-through feature, that is, when the mold is closed, the metal insert only contacts the movable mold / die, so that the metal insert cannot be pressed and pasted, and when the injection product with the metal insert is produced, the metal insert is not installed in place, which causes the injection product to be unqualified. CONTENT OF THE UTILITY MODEL

[0003] In order to improve the situation that when the metal insert in the injection product does not have a knock-through feature, the metal insert is not installed in place, which causes the injection product to be unqualified, the application provides a metal insert installation reminding mechanism of an injection mold.

[0004] The metal insert installation reminding mechanism of the injection mold provided by the application adopts the following technical scheme:

[0005] A metal insert installation reminding mechanism of an injection mold, comprising a movable mold main body and a movable mold push plate; the movable mold main body has a cavity for arranging a metal insert, the movable mold main body is provided with a sliding channel at the bottom surface of the cavity and a limiting pin is slidingly installed at the sliding channel, and the movable mold push plate is provided with a touch switch arranged corresponding to the limiting pin; the limiting pin has a first station and a second station; when the limiting pin is in the first station, the top end of the limiting pin is flush with the bottom surface of the cavity, and the bottom end of the limiting pin triggers the touch switch; when the limiting pin is in the second station, the top end of the limiting pin extends to the outside of the sliding channel, and the bottom end of the limiting pin is separated from the touch switch; and the movable mold main body is further provided with a locking assembly for locking the limiting pin in the first station.

[0006] By adopting the technical scheme, when the operator installs the metal insert into the cavity, the metal insert can press the limit pin from the second station to the first station, the bottom end of the limit pin triggers the touch switch, and the operator is reminded by the metal insert installation reminding mechanism of the injection mold that the metal insert is installed in place, thereby improving the situation that when the metal insert in the injection product does not have a touch-through feature, the metal insert is not installed in place, and the injection product is unqualified. When the mold is opened, the movable mold push plate can push the limit pin out, so that the limit pin can participate in the demolding of the injection product, and the limit pin is not in the first station after the product is demolded, so as to facilitate the operator to push the limit pin to the first station when installing the metal insert next time.

[0007] Optionally, the outer side wall of the limit pin is provided with a first limiting groove corresponding to the locking assembly; the locking assembly comprises a locking seat mounted on the movable mold body, a locking pin member slidingly mounted on the locking seat, and a locking spring driving the locking pin member to always have an abutting tendency on the outer side wall of the limit pin; the locking seat has a locking through hole for the limit pin to penetrate; when the locking pin member is inserted into the first limiting groove, the limit pin is in the first station.

[0008] By adopting the technical scheme, the structure of the locking assembly is disclosed. The locking assembly abuts the first limiting groove through the locking pin member, and provides the locking pin member with elastic support force through the locking spring, so that the limit pin can be locked in the first station.

[0009] Optionally, the bottom surface of the movable mold body is provided with a locking groove for arranging the locking seat, and the outer wall of the locking seat is provided with an arrangement groove in communication with the locking through hole and for arranging the locking pin member and the locking spring, one end of the locking spring abuts against the locking pin member, and the other end abuts against the inner wall of the locking groove.

[0010] By adopting the technical scheme, the mounting structure of the locking seat on the movable mold body is disclosed, and the mounting structure of the locking spring and the locking pin member on the locking seat is also disclosed. One end of the locking spring abuts against the inner wall of the arrangement groove, and the other end abuts against the locking pin member, so that the locking pin member can always abut against the outer side wall of the limit pin.

[0011] Optionally, the arrangement groove comprises a first groove body and a second groove body in a direction away from the locking through hole; the locking pin member comprises a pin portion slidingly arranged in the first groove body, a locking disc located in the second groove body and used for abutting the locking spring, and an extension rod connected to the locking disc and used for sleeving the locking spring.

[0012] By adopting the technical scheme, the structure of the locking pin is disclosed, the locking spring is sleeved on the extension rod and abuts against the locking disc at one end, so that stable elastic supporting force can be provided for the locking pin.

[0013] Optionally, the movable mold push plate comprises a first push plate and a second push plate arranged below the first push plate; the limit pin has a limit protrusion, and the movable mold push plate has a limit cavity for arranging the limit protrusion to slide up and down, the limit cavity comprises an upper groove arranged on the bottom surface of the first push plate and a lower groove arranged on the top surface of the second push plate.

[0014] By adopting the technical scheme, the movable mold push plate is arranged in the form of the first push plate and the second push plate, so that the installation of the limit pin and other push rod structures is facilitated; the limit protrusion is arranged on the limit pin, and the movable mold push plate is provided with the limit cavity for mounting the limit protrusion, so that after the mold of the injection mold is opened, the movable mold push plate can push the limit pin out of the first station, and when the movable mold push plate is reset, the limit pin can be moved inward to the second station.

[0015] Optionally, the limit pin is provided with a second limit groove on the lower side of the first limit groove for cooperating with the locking assembly; when the locking assembly cooperates with the second limit groove, the limit pin is in the second station.

[0016] By adopting the technical scheme, the second limit groove is arranged on the limit pin, so that the locking assembly can cooperate with the second limit groove to lock the limit pin in the second station.

[0017] Optionally, the limit pin comprises an upper pin and a lower pin, and the limit protrusion comprises a first protrusion arranged at the tail end of the upper pin and a second protrusion arranged at the top of the lower pin.

[0018] By adopting the technical scheme, the limit pin comprises the upper pin and the lower pin, which is helpful for the installation of the limit pin on the movable mold push plate.

[0019] Optionally, the bottom surface of the second push plate is provided with a switch groove for arranging the touch switch, the second push plate is provided with a locking plate for locking the touch switch in the switch groove, and the bottom surface of the switch groove is provided with a containing groove for arranging the spring sheet of the touch switch.

[0020] By adopting the technical scheme, the installation structure of the touch switch on the movable mold push plate is disclosed.

[0021] Optionally, the end of the pin part is conical, and the first limit groove and the second limit groove are arranged as conical grooves matched with the pin part.

[0022] By adopting the technical scheme, the matching mode of the pin part and the first limiting groove and the second limiting groove is further limited, the taper structure and the taper groove are adopted, and the clamping effect of the pin part on the first limiting groove and the second limiting groove is relatively ideal.

[0023] Optionally, the locking seat is fixedly installed in the locking groove by bolts.

[0024] By adopting the technical scheme, the locking seat is fixedly installed in the locking groove by bolts, and the locking strength of the locking seat and the locking groove is relatively ideal.

[0025] In summary, the present application has at least one of the following beneficial technical effects:

[0026] 1. A metal insert installation reminding device of an injection mold, by setting a limiting pin, a touch switch and a locking assembly, so that the operator needs to press down the limiting pin when installing the metal insert, and triggers the touch switch, thereby reminding the operator that the metal insert has been installed in place, thereby improving the situation that when there is no touch feature in the injection product, the metal insert is not installed in place, causing the injection product to be unqualified;

[0027] 2. By setting a second limiting groove on the limiting pin, the limiting pin is locked in the second station by the locking assembly after the moving die push plate is reset, so that the operator needs to overcome the locking force of the locking assembly on the limiting pin before pushing the locking pin to the first station when installing the metal insert each time, which helps to reduce the probability of the metal insert not being installed in place;

[0028] 3. The moving die push plate includes a first push plate and a second push plate, and a limiting cavity is formed between the first push plate and the second push plate, and the limiting pin includes an upper pin and a lower pin, so that the installation of the limiting pin is more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a structure schematic view of an automobile ornament in the embodiment of the present application.

[0030] Figure 2 is a structure schematic view of a metal insert installation reminding mechanism of an injection mold in the embodiment of the present application.

[0031] Figure 3 is a partial cross-sectional view of the metal insert installation reminding mechanism of the injection mold in the embodiment of the present application.

[0032] Figure 4 is a cooperation cross-sectional view of the limiting pin and the moving die push plate in the embodiment of the present application.

[0033] Figure 5 is Figure 3A local enlarged view of the middle A.

[0034] Explanation of reference numerals: 1, plastic main body; 2, metal insert; 3, movable mold main body; 31, mounting plate; 311, locking groove; 32, side support plate; 33, movable mold bottom plate; 34, guide rod; 35, sliding channel; 36, movable mold seat; 361, movable mold core; 3611, cavity; 4, movable mold push plate; 41, first push plate; 411, first through hole; 42, second push plate; 421, touch switch; 4211, spring piece; 422, switch groove; 423, locking press plate; 425, containing groove; 426, second through hole; 43, limiting cavity; 431, upper groove body; 432, lower groove body; 51, limiting ejector pin; 511, limiting protrusion; 5111, first protrusion; 5112, second protrusion; 512, upper ejector pin; 513, lower ejector pin; 514, first limiting groove; 515, second limiting groove; 6, locking assembly; 61, locking seat; 611, locking through hole; 612, arrangement groove; 6121, first groove body; 6122, second groove body; 62, locking pin element; 621, pin portion; 622, locking disc; 623, extension rod; 63, locking spring. DETAILED DESCRIPTION

[0035] The following description will be made in conjunction with the accompanying drawings. Figures 1-5 The application is further described in detail.

[0036] The embodiments of the application disclose a metal insert installation reminding mechanism of an injection mold, which is used for injection production of an automobile ornament.

[0037] In the embodiments, refer to Figure 1 The automobile ornament includes a plastic main body 1 and two metal inserts 2. The plastic main body 1 is in a square shell structure with one end being open. The two metal inserts 2 are symmetrically embedded on the inner side top surface of the plastic main body 1, so that one side surface of the metal insert 2 is exposed outside the plastic main body 1 and the other opposite side surface is completely wrapped by the plastic main body 1. Therefore, two metal inserts 2 need to be placed in the injection mold in the production of the automobile ornament, that is, one automobile ornament corresponds to two sets of metal insert installation reminding mechanisms of the injection mold. Since the metal insert installation reminding mechanism of the injection mold is applied to the injection production of the automobile ornament, the related technical features involved in the subsequent automobile ornament can refer to Figure 1 , and no separate reference is made.

[0038] Refer to Figure 2 and Figure 3The metal insert installation reminding mechanism of the injection mold comprises a movable mold body 3, a movable mold push plate 4, a limiting pin 51 installed on the movable mold push plate 4 and slidingly penetrating through the movable mold body 3, a touch switch 421 installed on the movable mold push plate 4 and used for cooperating with the limiting pin 51, and a locking assembly 6 installed on the movable mold body 3 and used for locking the limiting pin 51.

[0039] With reference to Figure 2 The movable mold body 3 comprises a mounting plate 31, a movable mold base 36 installed on the mounting plate 31, and a movable mold core 361 installed on the movable mold base 36. In the embodiment, two movable mold cores 361 are arranged on the movable mold body 3. Two side support plates 32 are symmetrically arranged on the bottom surface of the mounting plate 31, and a movable mold bottom plate 33 is arranged at the bottom of the two side support plates 32. A push plate gap is formed between the two side support plates 32, and a plurality of guide rods 34 perpendicular to the movable mold bottom plate 33 are arranged between the mounting plate 31 and the movable mold bottom plate 33. The movable mold push plate 4 is slidingly arranged at the push plate gap, and the movable mold push plate 4 has a through hole used for cooperating with the guide rods 34.

[0040] With reference to Figure 2 And Figure 3 The movable mold core 361 has a cavity 3611 for arranging the metal insert 2. The movable mold body 3 is provided with a sliding channel 35 at the bottom surface of the cavity 3611 for penetrating through the movable mold body 3 to arrange the limiting pin 51. The sliding channel 35 penetrates through the upper and lower surfaces of the movable mold body 3, so that a part of the sliding channel 35 is arranged at the movable mold core 361, a part is arranged at the movable mold base 36, and the remaining part is arranged at the mounting plate 31.

[0041] With reference to Figure 3 The movable mold push plate 4 comprises a first push plate 41 and a second push plate 42 arranged at the lower side of the first push plate 41. The bottom surface of the second push plate 42 is provided with a switch groove 422 for arranging the touch switch 421 and a locking pressing plate 423 for pressing the touch switch 421 in the switch groove 422. The locking pressing plate 423 is locked on the bottom surface of the second push plate 42 by a screw. In the embodiment, the touch switch 421 is a light touch switch. The spring sheet 4211 of the light touch switch is arranged at the upper side of the light touch switch. The second push plate 42 is provided with a containing groove 425 for arranging the spring sheet 4211 at the inner top surface of the switch groove 422. The injection mold of the automobile ornament further comprises a reminding system connected with the touch switch 421. When the touch switch 421 is triggered, the reminding system will send a corresponding reminding signal. In the embodiment, the reminding system is a display lamp system. When the trigger switch is triggered, the display lamp in the display lamp system is turned on.

[0042] With reference to Figure 4, in order to realize the action of the movable mold push plate 4 driving the limit pin 51, the limit pin 51 is provided with a limit protrusion 511 which is annular and used for cooperating with the movable mold push plate 4. The movable mold push plate 4 has a limit cavity 43 for arranging the limit protrusion 511 to slide up and down. The cross section of the limit cavity 43 is fitted with the cross section of the limit protrusion 511 to ensure the stability of the limit protrusion 511 sliding up and down. The limit cavity 43 includes an upper groove body 431 arranged on the bottom surface of the first push plate 41 and a lower groove body 432 located on the top surface of the second push plate 42. The first push plate 41 is further provided with a first through hole 411 which is coaxially arranged with the upper groove body 431 and communicates the upper groove body 431 and the top surface of the first push plate 41. The second through hole 426 which is coaxially arranged with the lower groove body 432 is arranged between the lower groove body 432 and the containing groove 425.

[0043] With reference to Figure 3 and Figure 4 , in order to facilitate the installation of the limit pin 51 on the movable mold push plate 4, the limit pin 51 includes an upper pin 512 and a lower pin 513 which are coaxially arranged. The limit protrusion 511 includes a first protrusion 5111 arranged at the tail end of the upper pin 512 and a second protrusion 5112 arranged at the top of the lower pin 513. The upper pin 512 extends upward through the first through hole 411 and is arranged to slide in the sliding channel 35. The tail end of the lower pin 513 can be inserted into the containing groove 425 through the second through hole 426, thereby driving the spring sheet 4211 of the touch switch 421 to deform and triggering the touch switch 421. In this embodiment, the height of the second protrusion 5112 is consistent with the depth of the lower groove body 432.

[0044] With reference to Figure 3 and Figure 4 , the limit pin 51 has a first position and a second position under the action of the movable mold push plate 4. When the operator installs the metal insert 2 into the cavity 3611, the top end of the limit pin 51 is flush with the bottom surface of the cavity 3611, at this time the limit pin 51 is in the first position; after the movable mold push plate 4 is reset, the inner top surface of the limit cavity 43 in the movable mold push plate 4 abuts against the upper surface of the limit protrusion 511, and the top end of the limit pin 51 extends to the outside of the sliding channel 35, at this time the limit pin 51 is in the second position.

[0045] With reference to Figure 3 and Figure 5 , the outer wall of the limit pin 51 is provided with a first limit groove 514 and a second limit groove 515 located below the first limit groove 514. When the limit pin 51 is in the first position, the locking assembly 6 cooperates with the first limit groove 514; when the limit pin 51 is in the second position, the locking assembly 6 cooperates with the second limit groove 515.

[0046] With reference to Figure 3 and Figure 5The bottom surface of the mounting plate 31 is provided with a locking groove 311 for mounting the locking assembly 6. The locking assembly 6 comprises a locking seat 61, a locking pin 62 and a locking spring 63. The locking seat 61 is mounted in the locking groove 311 of the mounting plate 31 by bolts, and the locking seat 61 is provided with a locking through hole 611 for slidingly arranging the limiting pin 51.

[0047] With reference to Figure 3 and Figure 5 The locking seat 61 is further provided with an arrangement groove 612 in communication with the locking through hole 611 and for arranging the locking pin 62 and the locking spring 63. The arrangement groove 612 comprises a first groove body 6121 in communication with the locking through hole 611 and a second groove body 6122 in communication with the first groove body 6121 and the outer side wall of the locking seat 61. The connection between the first groove body 6121 and the second groove body 6122 forms a stepped surface. The locking pin 62 comprises a pin portion 621 slidingly arranged in the first groove body 6121, a locking disc 622 located in the second groove body 6122 and used for abutting the locking spring 63, and an extension rod 623 connected to the locking disc 622 and used for sleeving the locking spring 63. The pin portion 621 can be insertedly arranged in the first limiting groove 514 or the second limiting groove 515 of the limiting pin 51. The locking spring 63 is sleeved on the outer side of the extension rod 623, and one end thereof abuts against the locking disc 622 and the other end thereof abuts against the inner wall of the locking groove 311, so that the locking spring 63 always has a tendency to abut against the outer side wall of the limiting pin 51.

[0048] In combination Figures 1 to 5 The implementation principle of the metal insert installation reminding mechanism of the injection mold in the embodiment is as follows: in the initial state, the limiting pin 51 is in the second working position, and the locking mechanism is locked in the second limiting groove 515 of the limiting pin 51; when the injection production of the automobile ornament described above is needed, the operator installs the metal insert 2 in the cavity 3611, the metal insert 2 drives the limiting pin 51 to slide downward, so that the lower end of the limiting pin 51 abuts against the switch 421, and when the limiting pin 51 is in the first working position, the top end of the limiting pin 51 is flush with the bottom surface of the cavity 3611, and the locking assembly 6 is locked in the first limiting groove 514 of the limiting pin 51; after the injection is completed, the movable mold push plate 4 drives the limiting pin to move upward and completes the discharging of the automobile ornament, and when the movable mold push plate 4 is reset, since the limiting protrusion 511 of the limiting pin has a gap with the limiting cavity 43 in the height direction, the limiting pin will not be reset to the first working position, but will be reset to the second working position, and at this time, the locking assembly 6 is locked at the second limiting groove 515 of the limiting pin 51.

[0049] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A metal insert installation reminding mechanism of an injection mold, comprising a movable mold main body (3) and a movable mold push plate (4); the movable mold main body (3) has a cavity (3611) for arranging a metal insert (2), characterized in that, The movable die body (3) is provided with a sliding channel (35) at the bottom surface of the cavity (3611), and a limiting pin (51) is slidingly installed at the sliding channel (35), and the movable die push plate (4) is provided with a touch switch (421) arranged correspondingly with the limiting pin (51); the limiting pin (51) has a first position and a second position; when the limiting pin (51) is in the first position, the top end of the limiting pin (51) is flush with the bottom surface of the cavity (3611), and the bottom end of the limiting pin (51) triggers the touch switch (421); when the limiting pin (51) is in the second position, the top end of the limiting pin (51) extends to the outside of the sliding channel (35), and the bottom end of the limiting pin (51) is separated from the touch switch (421); the movable die body (3) is further provided with a locking assembly (6) for locking the limiting pin (51) in the first position.

2. A metal insert installation reminder mechanism for an injection mold according to claim 1, characterized by, The outer wall of the limiting pin (51) is provided with a first limiting groove (514) arranged correspondingly with the locking assembly (6); the locking assembly (6) comprises a locking seat (61) installed on the movable die body (3), a locking pin (62) slidingly installed on the locking seat (61), and a locking spring (63) driving the locking pin (62) to always have the tendency of abutting against the outer wall of the limiting pin (51); the locking seat (61) has a locking through hole (611) for the limiting pin (51) to pass through; when the locking pin (62) is inserted into the first limiting groove (514), the limiting pin (51) is in the first position.

3. A metal insert installation reminder mechanism for an injection mold according to claim 2, wherein The bottom surface of the movable die body (3) is provided with a locking groove (311) for arranging the locking seat (61), and the outer wall of the locking seat (61) is provided with an arrangement groove (612) in communication with the locking through hole (611) and for arranging the locking pin (62) and the locking spring (63), one end of the locking spring (63) abuts against the locking pin (62), and the other end abuts against the inner wall of the locking groove (311).

4. A metal insert installation reminder mechanism for an injection mold according to claim 3, wherein The arrangement groove (612) comprises a first groove body (6121) and a second groove body (6122) in a direction away from the locking through hole (611); the locking pin (62) comprises a pin portion (621) slidingly arranged in the first groove body (6121), a locking disc (622) located in the second groove body (6122) and used for abutting the locking spring (63), and an extension rod (623) connected to the locking disc (622) and used for sleeving the locking spring (63).

5. A metal insert installation reminder mechanism for an injection mold according to claim 4, wherein The movable mold push plate (4) comprises a first push plate (41) and a second push plate (42) located at the lower side of the first push plate (41); the limiting pin (51) has a limiting protrusion (511), the movable mold push plate (4) has a limiting cavity (43) for the up-and-down sliding arrangement of the limiting protrusion (511), and the limiting cavity (43) comprises an upper groove body (431) located at the bottom surface of the first push plate (41) and a lower groove body (432) located at the top surface of the second push plate (42).

6. A metal insert installation reminder mechanism for an injection mold according to claim 5, wherein The limiting pin (51) is provided with a second limiting groove (515) for cooperating with the locking assembly (6) at the lower side of the first limiting groove (514); when the locking assembly (6) cooperates with the second limiting groove (515), the limiting pin (51) is in the second station.

7. A metal insert installation reminder mechanism for an injection mold according to claim 6, wherein The limiting pin (51) comprises an upper pin (512) and a lower pin (513), and the limiting protrusion (511) comprises a first protrusion (5111) arranged at the tail end of the upper pin (512) and a second protrusion (5112) arranged at the top of the lower pin (513).

8. A metal insert installation reminder mechanism for an injection mold according to claim 6, wherein The bottom surface of the second push plate (42) is provided with a switch groove (422) for the arrangement of the touch switch (421), the second push plate (42) is provided with a locking plate (423) for locking the touch switch (421) in the switch groove (422), and the bottom surface of the switch groove (422) is provided with a containing groove (425) for the arrangement of the spring sheet (4211) of the touch switch (421).

9. A metal insert installation reminder mechanism for an injection mold according to claim 6, wherein The end of the pin part (621) is tapered, and the first limiting groove (514) and the second limiting groove (515) are tapered grooves matched with the pin part (621).

10. The metal insert installation reminder mechanism for an injection mold of claim 3, wherein, The locking seat (61) is fixedly installed in the locking groove (311) by bolts.

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