Fast-assembly type plastic part injection mold

Abstract

The utility model relates to the technical field of injection molds, in particular to a quick-assembly type plastic part injection mold which comprises a mounting frame, a female mold and a male mold, a fixing plate is connected to the mounting frame, a mounting table used for mounting the female mold is arranged on the fixing plate, a dismounting and mounting assembly used for quickly dismounting and mounting the female mold is arranged on the mounting table, and a pushing air cylinder is connected to the bottom of the mounting frame. A piston rod of the pushing air cylinder is connected with a connecting base, the connecting base is provided with an ejection block, the ejection block is connected with a connecting rod, the connecting rod can be inserted into the connecting base, the connecting base is provided with a locking assembly used for locking the connecting rod, the fixing plate and the mounting table are each provided with a through hole allowing the ejection block to penetrate through, and the female die is provided with an ejection hole matched with the ejection block. The top of the mounting frame is connected with a pushing hydraulic cylinder, and a piston rod, connected to the pushing hydraulic cylinder, of the male die penetrates through the end of the mounting frame. The injection mold has the effects that the mold body can be rapidly and stably mounted, and the problem that the injection mold is lack of an ejection structure is solved.

Description

Technical Field

[0001] The utility model relates to the field of injection mold technology, in particular to a quick-installation plastic part injection mold. Background Art

[0002] Injection molds are often used in the production of plastic parts, but the installation of the concave mold in the injection mold is very complicated, especially for modular plastic toys. When other concave molds need to be replaced to produce plastic parts of different styles, it will be very troublesome for the staff to disassemble and assemble.

[0003] The existing Chinese patent with announcement number CN212312598U discloses a mold for an injection mold that is easy to replace, including a mold base, a removal mechanism, a connecting seat, a mold body and a clamping mechanism, wherein the removal mechanism can be assembled on one side of the mold base, the connecting seat can be detachably arranged at the top of the removal mechanism, the mold body can be screwed to the top of the connecting seat, and the clamping mechanism can be assembled in the inner cavity of the mold base. The mold for the injection mold that is easy to replace can push the detached connecting seat out of the inner cavity of the mold base through the cooperation between the spring and the bottom plate. The device has a simple structure and exquisite design, and bids farewell to the traditional method of fixing and installing with bolts. It is convenient for users to replace the mold body, and it is easy to operate, saves time and effort, avoids spending a lot of time when replacing the mold body and affecting the overall work progress, and indirectly improves the overall production efficiency. It is flexible to use and has strong practicality, and meets the use needs in the existing market.

[0004] With regard to the above-mentioned related technologies, the inventors believe that the following problems exist: 1. During installation, it is necessary to press the mold body to keep the spring in a compressed state, which may cause uneven force on the spring and tilt of the mold body. In this case, the clamping block cannot be accurately fixed to the mold body, which increases the difficulty of the installation structure; 2. The mold body is not provided with a corresponding ejection structure, and the finalized product cannot be taken out during use. Utility Model Content

[0005] In order to enable the injection mold to quickly and smoothly install the mold body and to improve the problem of the injection mold lacking an ejection structure, the present application provides a quick-install plastic part injection mold.

[0006] The quick-install plastic injection mold provided in this application adopts the following technical solution:

[0007] A quick-install plastic part injection mold, comprising a mounting frame, a concave mold and a convex mold, the mounting frame is connected to a fixing plate, the mounting frame and the fixing plate are arranged in a "日" shape as a whole, the fixing plate is provided with a mounting platform for installing the concave mold, the mounting platform is provided with a disassembly and assembly component for quickly disassembling the concave mold, the bottom of the mounting frame is connected to a pushing cylinder, the piston rod of the pushing cylinder is arranged vertically upward, the piston rod of the pushing cylinder is connected to a connecting seat, the connecting seat is provided with an ejection block, the ejection block is connected to a connecting rod, the connecting rod can be inserted in the connecting seat, the connecting seat is provided with a locking assembly for locking the connecting rod, the fixing plate and the mounting platform are both provided with through holes for the ejection block to pass through, the concave mold is provided with an ejection hole adapted to the ejection block, the top of the mounting frame is connected to a pushing hydraulic cylinder, and the convex mold is connected to the end of the piston rod of the pushing hydraulic cylinder that passes through the mounting frame.

[0008] Preferably, the disassembly and assembly assembly includes a cover, a pull rod, a slider, a first spring and a fixed block. A mounting groove is provided on the mounting platform, and one of the mounting grooves is provided on opposite sides of the mounting platform, respectively. The cover is connected to the side wall of the mounting platform, and the cover is covered on the notch of the mounting groove. The pull rod passes through the cover and is arranged in the mounting groove. The axis of the pull rod and the axis of the mounting groove are arranged colinearly. The slider is connected to the end of the pull rod located in the mounting groove, and the side wall of the slider slides and fits the inner wall of the mounting groove. The first spring is sleeved on the rod body of the pull rod located in the mounting groove, one end of the first spring abuts against the cover, and the other end abuts against the slider. The fixed block is connected to the end of the pull rod that does not penetrate into the mounting groove, and the fixed block is arranged in an "L" shape. A fixing groove for the fixed block to be inserted into is provided on the die.

[0009] Preferably, the slider is provided in a disc shape, and the inner cavity of the mounting groove is adapted to the slider.

[0010] Preferably, a positioning column is connected to the mounting platform, and the positioning column is arranged in a direction perpendicular to the mounting platform, and a positioning hole for the positioning column to pass through is opened on the die.

[0011] Preferably, the locking assembly includes a mounting cylinder, a cylinder cover, a locking rod, a slide plate, a second spring and a shift block, the mounting cylinder is connected to the connecting seat, the cylinder cover is connected to the cylinder mouth of the mounting cylinder, the locking rod is inserted between the cylinder cover and the mounting cylinder, the axis of the locking rod is colinear with the axis of the mounting cylinder, the connecting seat is provided with a connecting hole for the locking rod to pass through, the connecting rod is provided with a locking hole for the locking rod to be inserted, the slide plate is connected to the rod body of the locking rod located in the mounting cylinder, the side wall of the slide plate slides and fits the inner wall of the mounting cylinder, the second spring is sleeved on the rod body of the locking rod located in the mounting cylinder, one end of the second spring abuts against the cylinder cover, and the other end abuts against the slide plate, and the shift block is connected to the end of the locking rod passing through the cylinder cover.

[0012] Preferably, the end of the locking rod inserted into the locking hole is provided with a rounded corner.

[0013] In summary, the present application includes the following beneficial technical effects:

[0014] A quick-install plastic part injection mold provided by the utility model includes a mounting frame, a female mold, a male mold, a fixing plate, a mounting table, a disassembly and assembly component, a pushing cylinder, a connecting seat, an ejecting block, a connecting rod, a locking component and a pushing hydraulic cylinder. By setting the mounting table and the disassembly and assembly component, the quick disassembly and assembly of the female mold are realized, which is convenient for replacing different female molds. By setting the pushing cylinder, the connecting seat, the connecting rod and the ejecting block, the plastic part inside the groove is ejected. At the same time, different ejecting blocks on the connecting rod can be replaced by using the locking component, so that the ejecting block is adapted to the female mold. During operation, the male mold is pushed by the pushing hydraulic cylinder to be combined with the female mold, so as to achieve the effect that the injection mold can quickly and stably install the mold body and improve the problem that the injection mold lacks an ejecting structure. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the quick-install plastic part injection mold in the embodiment of the present application;

[0016] Figure 2 is a schematic diagram for embodying the disassembly and assembly component in the embodiment of the present application;

[0017] Figure 3 is Figure 2 an enlarged view of part A in

[0018] Description of the reference numerals: 1, mounting frame; 11, fixing plate; 12, mounting table; 121, positioning column; 13, pushing cylinder; 131, connecting seat; 14, pushing hydraulic cylinder; 2, female mold; 3, male mold; 4, disassembly and assembly component; 41, cover; 42, pull rod; 43, slider; 44, first spring; 45, fixed block; 5, ejecting block; 51, connecting rod; 6, locking component; 61, mounting cylinder; 62, cylinder cover; 63, locking rod; 64, sliding plate; 65, second spring; 66, dial block. Detailed Embodiments

[0019] In order to enable those skilled in the art to better understand the solution of the present utility model, the following will clearly and completely describe the solution in the embodiment of the present utility model with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0020] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model; the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and defined, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0021] The embodiment of the present application discloses a quick-installation plastic part injection mold. Referring to Figure 1 , Figure 2 and Figure 3 , the quick-installation plastic part injection mold includes an installation frame 1, a female mold 2 and a male mold 3. A fixing plate 11 is connected to the installation frame 1. The installation frame 1 and the fixing plate 11 are integrally arranged in an "E" shape. An installation table 12 for installing the female mold 2 is provided on the fixing plate 11. A disassembly and assembly component 4 for quickly disassembling and assembling the female mold 2 is provided on the installation table 12. A pushing cylinder 13 is connected to the bottom of the installation frame 1. The piston rod of the pushing cylinder 13 is arranged vertically upward. A connecting seat 131 is connected to the piston rod of the pushing cylinder 13. An ejector block 5 is provided on the connecting seat 131. A connecting rod 51 is connected to the ejector block 5. The connecting rod 51 can be inserted into the connecting seat 131. A locking component 6 for locking the connecting rod 51 is provided on the connecting seat 131. Through holes for the ejector block 5 to pass through are opened on both the fixing plate 11 and the installation table 12. An ejector hole adapted to the ejector block 5 is opened on the female mold 2. A pushing hydraulic cylinder 14 is connected to the top of the installation frame 1. The male mold 3 is connected to the end of the piston rod of the pushing hydraulic cylinder 14 passing through the installation frame 1.

[0022] During operation, the disassembly and assembly component 4 can be used to quickly disassemble and assemble the female mold 2. At the same time, the ejector block 5 matching the female mold 2 can be replaced through the common cooperation of the connecting seat 131, the connecting rod 51 and the locking component 6. During injection molding, the pushing hydraulic cylinder 14 is used to push the male mold 3 to fit with the female mold 2. After injection molding is completed, the pushing cylinder 13 is used to push the ejector block 5 to eject the plastic part.

[0023] The disassembly and assembly component 4 includes a cover 41, a pull rod 42, a slider 43, a first spring 44 and a fixing block 45. Installation grooves are formed on the installation table 12, and one installation groove is provided on each of the two opposite sides of the installation table 12. The cover 41 is connected to the side wall of the installation table 12, and the cover 41 covers the notch of the installation groove. The pull rod 42 is arranged in the installation groove through the cover 41, and the axis of the pull rod 42 is collinear with the axis of the installation groove. The slider 43 is connected to the end of the pull rod 42 located in the installation groove, and the side wall of the slider 43 is slidably attached to the inner wall of the installation groove. The first spring 44 is sleeved on the rod body of the pull rod 42 located in the installation groove. One end of the first spring 44 abuts against the cover 41, and the other end abuts against the slider 43. The fixing block 45 is connected to the end of the pull rod 42 that does not penetrate into the installation groove. The fixing block 45 is arranged in an "L" shape, and a fixing groove for the fixing block 45 to be inserted into is formed on the female die 2.

[0024] Wherein, the slider 43 is arranged in a disc shape, and the inner cavity of the installation groove is adapted to the slider 43. Such a setting facilitates the rotation of the fixing block 45 on the pull rod 42.

[0025] When replacing the female die 2, first pull the fixing block 45 outwards to make the fixing block 45 disengage from the fixing groove, and then directly pull out the female die 2 that needs to be replaced upwards. At the same time, rotate the fixing block 45 so that the fixing block 45 abuts against the installation table 12 to prevent the fixing block 45 from affecting the installation of the subsequent new female die 2. Then, place the new female die 2 on the installation table 12, then pull the fixing block 45 outwards and rotate the fixing block 45 back to its original position. Then, slowly release the fixing block 45, and use the first spring 44 to push the slider 43 to drive the fixing block 45 to be inserted into the fixing groove through the pull rod 42.

[0026] A positioning post 121 is connected to the installation table 12. The positioning post 121 is arranged in a direction perpendicular to the installation table 12. A positioning hole for the positioning post 121 to pass through is formed on the female die 2. By providing the positioning post 121 and the positioning hole, the position of the female die 2 on the installation table 12 can be quickly positioned, which is beneficial to improving the installation efficiency.

[0027] The locking component 6 includes an installation cylinder 61, a cylinder cover 62, a locking rod 63, a sliding plate 64, a second spring 65 and a dial block 66. The installation cylinder 61 is connected to the connecting seat 131, and the cylinder cover 62 is connected to the mouth of the installation cylinder 61. The locking rod 63 is disposed between the cylinder cover 62 and the installation cylinder 61, and the axis of the locking rod 63 is collinear with the axis of the installation cylinder 61. A connecting hole for the locking rod 63 to pass through is formed in the connecting seat 131, and a locking hole for the locking rod 63 to insert is formed in the connecting rod 51. The sliding plate 64 is connected to the rod body of the locking rod 63 located inside the installation cylinder 61, and the side wall of the sliding plate 64 is slidably attached to the inner wall of the installation cylinder 61. The second spring 65 is sleeved on the rod body of the locking rod 63 located inside the installation cylinder 61. One end of the second spring 65 abuts against the cylinder cover 62, and the other end abuts against the sliding plate 64. The dial block 66 is connected to the end of the locking rod 63 passing through the cylinder cover 62.

[0028] Wherein, the end of the locking rod 63 inserted into the locking hole is rounded. Such a setting is beneficial for the locking rod 63 to be inserted into the locking hole of the connecting rod 51, reducing the damage of the locking rod 63 to the locking hole and being beneficial to ensuring the accuracy.

[0029] When replacing the ejector block 5, pull the dial block 66 outwards to disengage the locking rod 63 from the locking hole. Then, pull out the old ejector block 5 and the connecting rod 51 upwards. Then, insert the new ejector block 5 and the connecting rod 51 into the connecting seat 131 from top to bottom. After complete insertion, release the dial block 66, and use the second spring 65 to push the sliding plate 64 to drive the locking rod 63 to insert into the locking hole of the connecting rod 51.

[0030] Finally, it should be noted that the above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A quick-install plastic injection mold, characterized in that: It includes a mounting bracket (1), a female die (2) and a male die (3). A fixing plate (11) is connected to the mounting bracket (1). The mounting bracket (1) and the fixing plate (11) are integrally arranged in an "E" shape. An installation table (12) for installing the female die (2) is provided on the fixing plate (11). A disassembly and assembly component (4) for quickly disassembling and assembling the female die (2) is provided on the installation table (12). A pushing cylinder (13) is connected to the bottom of the mounting bracket (1). The piston rod of the pushing cylinder (13) is vertically upward. A connecting seat (131) is connected to the piston rod of the pushing cylinder (13). A ejector block (5) is provided on the connecting seat (131). A connecting rod (51) is connected to the ejector block (5). The connecting rod (51) can be inserted into the connecting seat (131). A locking component (6) for locking the connecting rod (51) is provided on the connecting seat (131). Through holes for the ejector block (5) to pass through are opened on both the fixing plate (11) and the installation table (12). An ejector hole adapted to the ejector block (5) is opened on the female die (2). A pushing hydraulic cylinder (14) is connected to the top of the mounting bracket (1). The male die (3) is connected to the end of the piston rod of the pushing hydraulic cylinder (14) passing through the mounting bracket (1).

2. The quick-install plastic part injection mold according to claim 1, characterized in that: The disassembly and assembly component (4) includes a cover (41), a pull rod (42), a slider (43), a first spring (44) and a fixing block (45). Installation grooves are opened on the installation table (12). One installation groove is provided on each of the opposite sides of the installation table (12). The cover (41) is connected to the side wall of the installation table (12). The cover (41) covers the opening of the installation groove. The pull rod (42) passes through the cover (41) and is arranged in the installation groove. The axis of the pull rod (42) is collinear with the axis of the installation groove. The slider (43) is connected to the end of the pull rod (42) located in the installation groove. The side wall of the slider (43) is slidably attached to the inner wall of the installation groove. The first spring (44) is sleeved on the rod body of the pull rod (42) located in the installation groove. One end of the first spring (44) abuts against the cover (41), and the other end abuts against the slider (43). The fixing block (45) is connected to the end of the pull rod (42) that does not penetrate into the installation groove. The fixing block (45) is arranged in an "L" shape. A fixing groove for the fixing block (45) to be inserted into is opened on the female die (2).

3. The quick-install plastic injection mold according to claim 2, characterized in that: The slider (43) is arranged in a disc shape. The inner cavity of the installation groove is adapted to the slider (43).

4. The quick-install plastic injection mold according to claim 1, characterized in that: A positioning post (121) is connected to the installation table (12). The positioning post (121) is arranged in a direction perpendicular to the installation table (12). A positioning hole for the positioning post (121) to pass through is opened on the female die (2).

5. The quick-install plastic injection mold according to claim 1, characterized in that: The locking assembly (6) comprises a mounting tube (61), a tube cover (62), a locking rod (63), a slide plate (64), a second spring (65) and a shifting block (66); the mounting tube (61) is connected to a connecting seat (131); the tube cover (62) is connected to a tube mouth of the mounting tube (61); the locking rod (63) is inserted between the tube cover (62) and the mounting tube (61); the axis of the locking rod (63) is colinear with the axis of the mounting tube (61); a connecting hole for the locking rod (63) to pass through is provided on the connecting seat (131); The connecting rod (51) is provided with a locking hole for inserting the locking rod (63); the slide plate (64) is connected to the rod body of the locking rod (63) located in the mounting tube (61); the side wall of the slide plate (64) is slidably fitted to the inner wall of the mounting tube (61); the second spring (65) is sleeved on the rod body of the locking rod (63) located in the mounting tube (61); one end of the second spring (65) abuts against the tube cover (62) and the other end abuts against the slide plate (64); the shifting block (66) is connected to the end of the locking rod (63) passing through the tube cover (62).

6. The quick-install plastic injection mold according to claim 5, characterized in that: The end of the locking rod (63) inserted into the locking hole is rounded.

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