Top block printing eliminating injection mold

Abstract

The injection mold comprises a movable mold body, a fixed mold body, an ejection assembly and a cooling piece for cooling an ejection block, the ejection assembly comprises a first driving piece, an ejection plate, the ejection block, an ejection rod, a sliding block and a first fixing base, the first fixing base is fixed to the ejection plate, the sliding block slides on the first fixing base, and the ejection block comprises a block body and a forming body; one end of the ejector rod is fixed on the sliding block, and the other end of the ejector rod is fixed on the block body; a protrusion is formed on the forming body, the outer side face of the protrusion is a first inclined face parallel to the ejector rod, a forming groove is formed in the movable mold, a groove matched with the protrusion is formed in the inner wall of the forming groove, and the included angle of the groove is an acute angle. The pushing force of injection molding pressure on the ejector block is converted into the force for pushing the protrusion to abut against the wall of the groove, the problem that the ejector block can be turned upwards is solved, the cooling temperature difference of all parts of an injection molding product tends to be consistent through the cooling piece, surface temperature difference marks are reduced, and through rigid matching of the protrusion and the groove and flexible matching of the cooling piece, the product quality is improved. And finally, the top block printing is eliminated.

Description

Technical Field

[0001] The invention relates to the field of molds, in particular to a top block printing injection mold. Background Art

[0002] Injection molds are tools for producing plastic products, and they are also tools that give plastic products a complete structure and precise dimensions. Injection molding is a common processing method for mass production of certain complex-shaped parts. It includes several steps: mold closing, injection, pressure holding, cooling, mold opening, and ejection. Specifically, it refers to injecting the heated and melted material into the mold cavity under high pressure, and then cooling and solidifying to obtain a molded product. In the design of injection molds, the quality of the ejection system design has a great impact on the quality of the final injection molded product.

[0003] For example Figure 1 The injection molded product 1 shown is injection molded, and the injection molded product 1 has an undercut block 11, which needs to be ejected by an inclined ejector. Figure 2 and Figure 3 Because the mold shakes during injection molding, the molten material enters the gap between the top block 41 and the movable mold 21, and the top block 41 is pushed toward the fixed mold 22 by the injection pressure, and the top block 41 turns up. Because the top block 41 is pulled by the top rod 42, under the action of the huge injection pressure, the top rod 42 is difficult to hold the top block 41, resulting in a top block 41 mark on the injection molded product 1. The top block 41 mark is usually covered by grinding and then spraying paint, which increases the consumption of manpower and other items. Summary of the invention

[0004] In order to eliminate the top block mark, the present application provides an injection mold for eliminating the top block mark.

[0005] The present application provides a block printing injection mold that adopts the following technical solution: An ejector block printing injection mold, comprising a movable mold, a fixed mold, an ejector assembly and a cooling member, wherein the ejector assembly comprises a driving member 1, an ejector plate and a plurality of inclined ejectors, wherein the driving member 1 drives the ejector plate to move along the mold opening and closing direction, wherein the inclined ejector comprises an ejector block, an ejector rod, a slider and a first fixed seat, wherein the first fixed seat is fixedly arranged on the ejector plate, and the slider is slidably connected to the first fixed seat along the core pulling direction; The ejector block comprises a block body connected to an ejector rod and a forming body for forming an undercut block, one end of the ejector rod is fixedly arranged on a slider, the other end of the ejector rod is detachably connected to the block body, the ejector rod is inclined, and the ejector rod is slidably connected to the movable mold along the inclined direction; A protrusion is formed outwardly at one end of the molding body away from the block, and a side surface of the protrusion away from the block is a first inclined surface, and the first inclined surface is parallel to the inclined direction of the ejector rod. A molding groove is provided on the movable mold, and a groove matching the protrusion is provided on the inner wall of the molding groove, and the angle of the groove is set at an acute angle; The cooling component includes a mounting head, a water inlet pipe, a water outlet pipe and a jet pipe. The mounting head is fixedly arranged at the bottom of the top rod. The mounting head is provided with a docking groove and a water trough which are interconnected and coaxial. The docking groove is located below the water trough. The water inlet pipe is connected to the docking groove, and the water outlet pipe is connected to the water trough. A movable groove is provided on the top rod along the axial direction. The movable groove is connected to the water trough and is coaxially arranged with the water trough. The diameters of the movable groove and the water trough are larger than the diameter of the jet pipe. The bottom end of the jet pipe is fixedly arranged on the inner wall of the docking groove, and the top end of the jet pipe extends to the top end of the movable groove.

[0006] By adopting the above technical scheme, the pushing direction of the ejector block by the injection molding pressure is toward the fixed mold side, and an angle is formed between the injection molding pressure and the moving direction of the ejector block. The pushing force of the injection molding pressure on the ejector block is converted into a force that pushes the protrusion against the wall of the groove. At this time, the cooperation between the protrusion and the groove forms an undercut, which limits the ejector block from moving out of the molding groove, locks the ejector block, and solves the problem that the ejector block will flip up. At the same time, since the cooling temperature difference will also cause the ejector block mark, the ejector block is cooled by setting a cooling part, so that the cooling temperature difference of each part of the injection molded product tends to be consistent, reducing the generation of surface temperature difference marks. Through the rigid cooperation between the protrusion and the groove and the flexible cooperation of the cooling part, the ejector block mark is finally eliminated under the interaction between the inside and outside of the two. During the ejection operation, the cooperation between the protrusion and the groove will not have any effect on the ejection of the ejector block. At the same time, a through groove formed by the protrusion will be left on the undercut block of the injection molded product, which will basically not affect the use of the injection molded product.

[0007] Preferably, a reinforcement groove is provided through the middle of the protrusion, the reinforcement groove is used to form a reinforcement rib, and the reinforcement groove extends toward one side of the formed body until it is flush with the surface of the undercut block.

[0008] By adopting the above technical solution, since the setting of the protrusion will form a through groove on the undercut block of the injection molded product, which will affect the structural strength of the undercut block to a certain extent, reinforcing ribs are formed on the undercut block by opening a reinforcing groove to enhance the structural strength of the undercut block. At the same time, the opening of the reinforcing groove can allow the molten material to pass through and fill the gap of the molding groove more quickly.

[0009] Preferably, the reinforcement groove is arranged in a tapered shape near one end of the fixed mold.

[0010] By adopting the above technical solution, the reinforcement groove separates the protrusion into two blocks, and the injection pressure of the molten material will act on the tapered inner wall of the reinforcement groove, driving the two blocks to move toward the side away from each other, so that the two blocks can respectively press against the side walls of the groove, further improving the matching accuracy between the protrusion and the groove, and at the same time further improving the stability of the top block.

[0011] Preferably, a stabilizing member is further included, and the stabilizing member includes a mold frame, a fixed plate, a second fixed seat and a stabilizing rod, the fixed plate is located on the side of the movable plate away from the movable mold, the fixed plate is fixedly set on the movable mold through the mold frame, the second fixed seat is fixedly set on the fixed plate, the stabilizing rod is penetrated along an inclined direction parallel to the top rod and slidably connected to the slider, the bottom end of the stabilizing rod is fixedly set on the second fixed seat, the movable mold is provided with a slot matching the top end of the stabilizing rod, and the top end of the stabilizing rod is inserted into the slot.

[0012] By adopting the above technical solution, by setting the ejector rod and the stabilizing rod, the double rod can improve the movement stability of the slider, thereby improving the movement stability of the ejector block, especially in the process of ejecting the injection molded product, the force on the surface of the injection molded product can be more uniform, the deformation of the injection molded product can be prevented, the ejection consistency can be improved, and it plays an auxiliary role in eliminating the ejector block print.

[0013] Preferably, it also includes a locking block, the bottom end of the block is provided with a mounting groove matching the top end of the push rod, a first locking groove is provided on the side wall of the block away from the molding body, the locking block is fixed in the first locking groove by bolts, and a second locking groove matching the end of the locking block is provided on the side wall of the push rod, and the end of the locking block is inserted into the second locking groove.

[0014] By adopting the above technical solution, the ejector rod is locked by the locking block.

[0015] Preferably, the cooling member further comprises a rotating head and a locking member, a convex ring is coaxially provided on the inner wall of the bottom end of the rotating head, a plurality of annular grooves coaxially cooperating with the convex ring are provided on the outer wall of the jet pipe along the axial direction, the bottom end of the rotating head is sleeved on the top end of the jet pipe, the convex ring is embedded in the corresponding annular groove to realize mutual rotation, a rotating block is provided on the top end of the rotating head, a rotating groove cooperating with the rotating block is provided on the top wall of the mounting groove, and the rotating block is rotatably connected in the rotating groove; An extension channel is provided on the block, and the extension channel extends toward one side of the forming body. A plug with an interference fit is installed at one end of the extension channel away from the forming body. The rotating head is bent, and the locking piece is used to lock the rotation angle of the rotating head so that the opening of the rotating head faces the extension channel side of the forming body.

[0016] By adopting the above technical solution and setting up an extended flow channel and a rotating head, cooling water can enter the extended flow channel to better cool the molding block part, that is, to cool the undercut block of the injection molded product, which can further reduce the cooling temperature difference and better eliminate the top block mark.

[0017] Preferably, the locking piece includes a first magnet and a second magnet, the first magnet is embedded in the locking block, and the second magnet is fixed to the outer wall of the rotating head by glue. When the rotating head rotates until the second magnet approaches and absorbs the first magnet, the rotating head rotates until the opening faces the side of the extended flow channel.

[0018] By adopting the above technical solution, the setting of the rotating head can improve the applicability of the jet pipe and reduce the difficulty of installing the jet pipe. When the jet pipe is directly installed, it is difficult to directly align the bent opening of the rotating head with the extended flow channel because the inside is difficult to observe. Therefore, by setting the first magnet and the second magnet, the second magnet is first fixed by the position of the extended flow channel and the locking block, and then directly installed. Under the vibration of the mold and the adsorption force of the first magnet and the second magnet, the rotating head will automatically rotate until the second magnet is opposite to the first magnet, and the direction of the rotating head is controlled by the mutual adsorption of the first magnet and the second magnet.

[0019] The technical effects of the present invention are mainly reflected in the following aspects: 1. The push direction of the ejector block by the injection molding pressure of the present invention is toward the fixed mold side, and an angle is formed between the push direction of the ejector block and the moving direction of the ejector block. The push force of the injection molding pressure on the ejector block is converted into a force that pushes the protrusion against the groove wall. At this time, the cooperation between the protrusion and the groove forms an undercut, which limits the ejector block from moving out of the molding groove, plays a locking role on the ejector block, solves the problem of the ejector block turning up, and thus eliminates the ejector block print; 2. In the present invention, since the setting of the protrusion will form a through groove on the undercut block of the injection molded product, it will affect the structural strength of the undercut block to a certain extent. Therefore, reinforcing ribs are formed on the undercut block by opening a reinforcing groove to enhance the structural strength of the undercut block. At the same time, the opening of the reinforcing groove can allow the molten material to pass through and fill the gap of the molding groove more quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of an injection molded product.

[0021] Figure 2 It is a partial cross-sectional view of an injection mold in the related art.

[0022] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0023] Figure 4 It is a schematic diagram of the overall structure of the injection mold of the embodiment of the present application.

[0024] Figure 5 It is a structural schematic diagram of the ejection assembly and the injection molded product in the embodiment of the present application.

[0025] Figure 6 It is a schematic diagram of the structure of a movable mold and several top blocks in an embodiment of the present application.

[0026] Figure 7 is along Figure 5 Cross-sectional view along line BB.

[0027] Figure 8 yes Figure 7 Enlarged view of point C in the middle.

[0028] Fig. 9 It is a schematic diagram of the structure of one of the top blocks in the embodiment of the present application.

[0029] Fig.10 It is a structural schematic diagram of the top block forming undercut block in the embodiment of the present application.

[0030] Fig.11 It is a schematic diagram of the structure of the injection molded product according to the embodiment of the present application.

[0031] Fig.12 It is a schematic diagram of the structure of cooling water inlet and outlet.

[0032] Explanation of reference numerals: 1, injection molded product; 11, undercut block; 12, reinforcing rib; 13, through groove; 21, movable mold; 211, molding groove; 212, groove; 213, slot; 22, fixed mold; 31, driving member 1; 32, top plate; 4, inclined ejector; 41, ejector block; 411, block body; 412, molding body; 413, protrusion; 414, first inclined surface; 415, reinforcing groove; 416, mounting groove; 417, first locking groove; 418, extended flow channel; 419, plug; 410, rotating groove ; 42. Push rod; 421. Second locking groove; 43. Sliding block; 44. First fixed seat; 45. Locking block; 5. Stabilizing member; 51. Formwork; 52. Fixing plate; 53. Second fixed seat; 54. Stabilizing rod; 6. Cooling member; 61. Mounting head; 611. Docking groove; 612. Downspout; 62. Water inlet pipe; 63. Water outlet pipe; 64. Jet pipe; 641. Ring groove; 65. Rotating head; 651. Rotating block; 652. Protruding ring; 7. Locking member; 71. First magnet; 72. Second magnet. DETAILED DESCRIPTION

[0033] The following is combined with Figure 4-Figure 12 The present application is further described in detail to make the technical solution of the present application easier to understand and grasp.

[0034] The embodiment of the present application discloses a top block printing injection mold.

[0035] Reference Figure 4-Figure 6 , a mold for removing top block printing of the present embodiment, a mold for removing top block printing of the present embodiment, comprises a movable mold 21, a fixed mold 22, an ejector assembly and a cooling member 6, the ejector assembly comprises a driving member 31, a top plate 32 and a plurality of inclined ejectors 4, the driving member 31 drives the top plate 32 to move along the mold opening and closing direction, the inclined ejector 4 comprises an ejector block 41, an ejector rod 42, a slider 43 and a first fixed seat 44, the first fixed seat 44 is fixedly arranged on the top plate 32, and the slider 43 is slidably connected to the first fixed seat 44 along the core pulling direction; Reference Figure 5-Figure 8 The top block 41 includes a block body 411 for connecting with a top rod 42 and a forming body 412 for forming the undercut block 11. One end of the top rod 42 is fixedly arranged on the slider 43, and the other end of the top rod 42 is detachably connected to the block body 411. The top rod 42 is inclined, and the top rod 42 is slidably connected to the movable mold 21 along the inclined direction. Reference Figure 7-Figure 11 A protrusion 413 is formed outwardly at one end of the molding body 412 away from the block body 411, and a side surface of the protrusion 413 away from the block body 411 is a first inclined surface 414, and the first inclined surface 414 is parallel to the inclined direction of the ejector pin 42. A molding groove 211 is provided on the movable mold 21, and a groove 212 matching with the protrusion 413 is provided on the inner wall of the molding groove 211, and the angle of the groove 212 is set at an acute angle; Reference Figure 7 , Figure 8 and Fig.12 The cooling member 6 is used to cool the top block 41. The cooling member 6 includes a mounting head 61, a water inlet pipe 62, a water outlet pipe 63 and a jet pipe 64. The mounting head 61 is fixedly arranged at the bottom of the top rod 42. The mounting head 61 is provided with a docking groove 611 and a water trough 612 which are interconnected and coaxial. The docking groove 611 is located below the water trough 612. The water inlet pipe 62 is connected to the docking groove 611, and the water outlet pipe 63 is connected to the water trough 612. A movable groove is provided on the top rod 42 along the axial direction. The movable groove is connected to the water trough 612 and is coaxially arranged with the water trough 612. The diameters of the movable groove and the water trough 612 are larger than the diameter of the jet pipe 64. The bottom end of the jet pipe 64 is fixedly arranged on the inner wall of the docking groove 611, and the top end of the jet pipe 64 extends to the top of the movable groove.

[0036] Reference Figure 7-Figure 12, the direction of the push of the top block 41 by the injection pressure is toward the side of the fixed mold 22, and an angle is formed between the moving direction of the top block 41. The driving force of the injection pressure on the top block 41 is converted into a force that pushes the protrusion 413 against the wall of the groove 212. At this time, the cooperation between the protrusion 413 and the groove 212 forms an undercut, which limits the top block 41 from moving out of the molding groove 211, and plays a locking role on the top block 41, solving the problem that the top block 41 will turn up. At the same time, since the cooling temperature difference will also cause the top block 41 to produce a mark, the top block 41 is cooled by setting a cooling member 6, so that the cooling temperature difference of each part of the injection molded product 1 tends to be consistent, reducing the generation of surface temperature difference marks. Through the rigid cooperation between the protrusion 413 and the groove 212 and the flexible cooperation of the cooling member 6, the top block 41 mark is finally eliminated under the interaction between the inside and outside of the two. During the ejection operation, the cooperation between the protrusion 413 and the groove 212 will not have any effect on the ejection of the ejector block 41 . At the same time, a through groove 13 formed by the protrusion 413 will remain on the undercut block 11 of the injection molded product 1 , which will basically not affect the use of the injection molded product 1 .

[0037] Reference Figure 9-11 A reinforcement groove 415 is formed through the middle of the protrusion 413 , and the reinforcement groove 415 is used to form the reinforcement rib 12 . The reinforcement groove 415 extends toward one side of the formed body 412 until it is flush with the surface of the undercut block 11 .

[0038] Reference Figure 9-11 Since the setting of the protrusion 413 will form a through groove 13 on the undercut block 11 of the injection molded product 1, which will affect the structural strength of the undercut block 11 to a certain extent, a reinforcing rib 12 is formed on the undercut block 11 by opening a reinforcing groove 415 to enhance the structural strength of the undercut block 11. At the same time, the opening of the reinforcing groove 415 can allow the molten material to pass through and fill the gap of the molding groove 211 more quickly.

[0039] Reference Figure 9-11 The reinforcing groove 415 is arranged in a tapered shape near one end of the fixed mold 22. The reinforcing groove 415 divides the protrusion 413 into two convex blocks. The injection pressure of the molten material acts on the tapered inner wall of the reinforcing groove 415, driving the two convex blocks to move away from each other, so that the two convex blocks can respectively press against the side walls of the groove 212, further improving the matching accuracy between the protrusion 413 and the groove 212, and also further improving the stability of the top block 41.

[0040] Reference Figure 5 and Figure 7, also includes a stabilizing member 5, the stabilizing member 5 includes a mold frame 51, a fixed plate 52, a second fixed seat 53 and a stabilizing rod 54, the fixed plate 52 is located on the side of the moving plate away from the movable mold 21, the fixed plate 52 is fixedly set on the movable mold 21 through the mold frame 51, the second fixed seat 53 is fixedly set on the fixed plate 52, the stabilizing rod 54 is penetrated along an inclined direction parallel to the top rod 42 and slidably connected to the slider 43, the bottom end of the stabilizing rod 54 is fixedly set on the second fixed seat 53, the movable mold 21 is provided with a slot 213 matching the top end of the stabilizing rod 54, and the top end of the stabilizing rod 54 is plugged into the slot 213.

[0041] Reference Figure 5 and Figure 7 By setting the ejector rod 42 and the stabilizing rod 54, the double rods can improve the movement stability of the slider 43, thereby improving the movement stability of the ejector block 41. Especially in the process of ejecting the injection molded product 1, the force on the surface of the injection molded product 1 can be more uniform, the deformation of the injection molded product 1 can be prevented, the ejection consistency can be improved, and it plays an auxiliary role in eliminating the print of the ejector block 41.

[0042] Reference Figure 8 , and also includes a locking block 45, a mounting groove 416 matching the top of the push rod 42 is opened at the bottom of the block 411, a first locking groove 417 is opened on the side wall of the block 411 away from the molding 412, the locking block 45 is fixed in the first locking groove 417 by bolts, and a second locking groove 421 matching the end of the locking block 45 is opened on the side wall of the push rod 42, and the end of the locking block 45 is inserted into the second locking groove 421. The push rod 42 is locked by the locking block 45.

[0043] Reference Figure 7 , Figure 8 and Fig.12 The cooling member 6 also includes a rotating head 65 and a locking member 7. A convex ring 652 is coaxially provided on the inner wall of the bottom end of the rotating head 65. A plurality of annular grooves 641 coaxially coaxially cooperating with the convex ring 652 are provided on the outer wall of the jet pipe 64 along the axial direction. The bottom end of the rotating head 65 is sleeved on the top end of the jet pipe 64. The convex ring 652 is embedded in the corresponding annular groove 641 to realize mutual rotation. A rotating block 651 is provided on the top end of the rotating head 65. A rotating groove 410 cooperating with the rotating block 651 is provided on the top wall of the mounting groove 416. The rotating block 651 is rotatably connected in the rotating groove 410.

[0044] Reference Figure 7 , Figure 8 and Fig.12An extension channel 418 is provided on the block 411, and the extension channel 418 extends toward one side of the molded body 412. A plug 419 with an interference fit is installed at one end of the extension channel 418 away from the molded body 412. The rotating head 65 is bent, and the locking member 7 is used to lock the rotation angle of the rotating head 65 so that the opening of the rotating head 65 faces the side of the extension channel 418 of the molded body 412.

[0045] Reference Figure 7 , Figure 8 and Fig.12 By setting the extended flow channel 418 and the rotating head 65, cooling water can enter the extended flow channel 418 to better cool the molding block part, that is, to cool the undercut block 11 of the injection molded product 1, which can further reduce the cooling temperature difference and better eliminate the top block 41 print.

[0046] Reference Figure 8 The locking member 7 includes a first magnet 71 and a second magnet 72. The first magnet 71 is embedded in the locking block 45, and the second magnet 72 is fixed on the outer wall of the rotating head 65 by glue. When the rotating head 65 rotates until the second magnet 72 approaches and absorbs the first magnet 71, the rotating head 65 rotates until the opening faces the side of the extension channel 418.

[0047] Reference Figure 8 and Fig.12 The setting of the rotating head 65 can improve the applicability of the jet tube 64 and reduce the difficulty of installing the jet tube 64. When the jet tube 64 is directly installed, it is difficult to directly align the bent opening of the rotating head 65 with the extended flow channel 418 because the inside is difficult to observe. Therefore, by setting the first magnet 71 and the second magnet 72, the second magnet 72 is first fixed by the position of the extended flow channel 418 and the locking block 45, and then directly installed. The rotating head 65 will automatically rotate to the second magnet 72 facing the first magnet 71 under the vibration of the mold and the adsorption force of the first magnet 71 and the second magnet 72, and the steering of the rotating head 65 is controlled by the mutual adsorption of the first magnet 71 and the second magnet 72.

[0048] Of course, the above are only typical examples of the present application. In addition, the present application may have many other specific implementation methods. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present application.

Claims

1. A block printing injection mold, characterized in that: The invention comprises a movable mold (21), a fixed mold (22), an ejection assembly and a cooling member (6); the ejection assembly comprises a driving member (31), a top plate (32) and a plurality of inclined ejectors (4); the driving member (31) drives the top plate (32) to move along the mold opening and closing direction; the inclined ejectors (4) comprise an ejector block (41), an ejector rod (42), a slider (43) and a first fixed seat (44); the first fixed seat (44) is fixedly arranged on the top plate (32); the slider (43) is slidably connected to the first fixed seat (44) along the core pulling direction; The ejector block (41) comprises a block body (411) for connecting with an ejector rod (42) and a molding body (412) for molding an undercut block (11); one end of the ejector rod (42) is fixedly arranged on a slider (43); the other end of the ejector rod (42) is detachably connected to the block body (411); the ejector rod (42) is arranged in an inclined manner; and the ejector rod (42) is slidably connected to the movable mold (21) along the inclined direction; A protrusion (413) is formed outwardly at one end of the molding body (412) away from the block body (411); a side surface of the protrusion (413) away from the block body (411) is a first inclined surface (414); the first inclined surface (414) is parallel to the inclined direction of the ejector rod (42); a molding groove (211) is provided on the movable mold (21); a groove (212) matching the protrusion (413) is provided on the inner wall of the molding groove (211); and the included angle of the groove (212) is set to be an acute angle; The cooling element (6) comprises a mounting head (61), a water inlet pipe (62), a water outlet pipe (63) and a jet pipe (64); the mounting head (61) is fixedly arranged at the bottom of the top rod (42); the mounting head (61) is provided with a docking groove (611) and a water trough (612) which are interconnected and coaxial; the docking groove (611) is located below the water trough (612); the water inlet pipe (62) is connected to the docking groove (611); The water outlet pipe (63) is connected to the water trough (612), and a movable groove is formed on the top rod (42) along the axial direction. The movable groove is connected to the water trough (612) and is coaxially arranged with the water trough (612). The diameters of the movable groove and the water trough (612) are larger than the diameter of the jet pipe (64). The bottom end of the jet pipe (64) is fixedly arranged on the inner wall of the docking groove (611), and the top end of the jet pipe (64) extends to the top end of the movable groove.

2. The anti-top block printing injection mold according to claim 1, characterized in that: A reinforcement groove (415) is provided through the middle of the protrusion (413), and the reinforcement groove (415) is used to form a reinforcement rib (12). The reinforcement groove (415) extends toward one side of the formed body (412) until it is flush with the surface of the undercut block (11).

3. The anti-blocking injection mold according to claim 2, characterized in that: The reinforcing groove (415) is arranged in a tapered shape at one end close to the fixed mold (22).

4. The anti-blocking injection mold according to claim 1, characterized in that: The invention also comprises a stabilizing member (5), wherein the stabilizing member (5) comprises a mold frame (51), a fixing plate (52), a second fixing seat (53) and a stabilizing rod (54); the fixing plate (52) is located on a side of the movable plate away from the movable mold (21); the fixing plate (52) is fixedly arranged on the movable mold (21) through the mold frame (51); the second fixing seat (53) is fixedly arranged on the fixing plate (52); the stabilizing rod (54) is penetrated along an inclined direction parallel to the top rod (42) and is slidably connected to the slider (43); the bottom end of the stabilizing rod (54) is fixedly arranged on the second fixing seat (53); the movable mold (21) is provided with a slot (213) matching the top end of the stabilizing rod (54); the top end of the stabilizing rod (54) is plugged into the slot (213).

5. The anti-blocking injection mold according to claim 1, characterized in that: It also includes a locking block (45), wherein a mounting groove (416) matching the top of the push rod (42) is provided at the bottom end of the block body (411), a first locking groove (417) is provided on the side wall of the block body (411) away from the molded body (412), the locking block (45) is fixed in the first locking groove (417) by bolts, and a second locking groove (421) matching the end of the locking block (45) is provided on the side wall of the push rod (42), and the end of the locking block (45) is inserted into the second locking groove (421).

6. The top block printing injection mold according to claim 5, characterized in that: The cooling member (6) further comprises a rotating head (65) and a locking member (7), wherein a convex ring (652) is coaxially arranged on the inner wall of the bottom end of the rotating head (65), and a plurality of annular grooves (641) cooperating with the convex ring (652) are coaxially arranged on the outer wall of the jet pipe (64) along the axial direction, the bottom end of the rotating head (65) is sleeved on the top end of the jet pipe (64), and the convex ring (652) is embedded in the corresponding annular groove (641) to realize mutual rotation, a rotating block (651) is arranged on the top end of the rotating head (65), and a rotating groove (410) cooperating with the rotating block (651) is arranged on the top wall of the mounting groove (416), and the rotating block (651) is rotatably connected in the rotating groove (410); An extension channel (418) is provided on the block (411), and the extension channel (418) extends toward one side of the molded body (412). An interference-fit plug (419) is installed at one end of the extension channel (418) away from the molded body (412). The rotating head (65) is bent, and the locking member (7) is used to lock the rotation angle of the rotating head (65) so that the opening of the rotating head (65) faces the side of the extension channel (418) of the molded body (412).

7. A block printing injection mold according to claim 6, characterized in that: The locking member (7) comprises a first magnet (71) and a second magnet (72), wherein the first magnet (71) is embedded in the locking block (45), and the second magnet (72) is fixed to the outer wall of the rotating head (65) by glue. When the rotating head (65) rotates until the second magnet (72) approaches and adsorbs the first magnet (71), the rotating head (65) rotates to the side with the opening facing the extension channel (418).

Images