Die for limiting oil cylinder

Abstract

The utility model belongs to the technical field of injection mold equipment, and particularly relates to a mold limited by an oil cylinder, which comprises a fixed mold plate block, an upper movable mold plate block, a middle movable mold plate block, a lower movable mold plate block, a limiting module group and a sliding module group, the lower movable mold plate block is driven by the oil cylinder, and the middle movable mold plate block is driven by the lower movable mold plate block through the sliding module group. The middle movable mold plate block drives the upper movable mold plate block to open and close the mold through a limiting module group hinged to the fixed mold plate block; according to the utility model, the lever principle and the track delay buffer design are applied, so that the overlarge impact force generated by mold opening can be effectively relieved, and the mold opening device has the advantages of reducing the mold opening force and protecting the mold and a machine.

Description

Technical Field

[0001] The utility model relates to the technical field of injection mold equipment, in particular to a mold with oil cylinder limit. Background Art

[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. The advantages of the injection molding method are fast production speed, high efficiency, automated operation, a wide variety of colors, shapes from simple to complex, sizes from large to small, and precise product size. The product is easy to update and can be made into parts with complex shapes. Injection molding can mass-produce the same parts to ensure the quality and consistency of the parts. At a certain temperature, the completely molten plastic material is stirred by a screw, injected into the mold cavity with high pressure, and after cooling and solidification, a molded product is obtained. This method is suitable for mass production of parts with complex shapes and is one of the important processing methods. The injection mold is the core component used in the injection molding process. The product has many cavities, many water outlets, and the tensile force generated by the undercut position is also large. After these undercut positions of multiple cavities accumulate, there will be a huge mold opening resistance. This mold opening resistance requires the machine to use a large impact force to pull it open, but excessive impact force is very damaging to the mold itself and the machine. Therefore, a buffer device is required to protect the mold and the machine after the machine has completed a certain pulling action. Utility Model Content

[0003] The purpose of the utility model is to address the defects and shortcomings of the prior art and provide a simple structure that can effectively mitigate the excessive impact force generated by mold opening by utilizing the lever principle and track delay buffer design, thereby reducing the mold opening force and protecting the mold and the machine.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] The utility model provides a cylinder limit mold, comprising a fixed template block, an upper movable template block, a middle movable template block, a lower movable template block, a limit module group, and a sliding module group, and is characterized in that:

[0006] The limit module group is hinged on both sides of the fixed template block, the upper movable template block and the middle movable template block, and the limit module group has a limit rotating shaft;

[0007] The lower movable template block is used to connect the oil cylinder and the sliding module group. The oil cylinder can drive the lower movable template block to move downward, and the downward movement of the lower movable template block drives the middle movable template block to move downward and disengage from the lower end of the molded product through the sliding module group. The downward movement of the middle movable template block also drives the limit module group, and the limit shaft of the limit module group rotates a certain angle to drive the upper movable template block to disengage from the upper end of the molded product.

[0008] As described above, in a mold with oil cylinder limiting, the sliding module group is arranged on the front and rear sides of the mold, and the sliding module group includes a support block, a sliding rod three, and a locking block. The support block is fixedly connected to the middle moving template block, the tail end of the sliding rod three is fixedly connected to the support block, the locking block is fixedly connected to the lower moving template block, and the locking block and the sliding rod three are slidably connected.

[0009] As described above, a mold with oil cylinder limiting, the middle moving template block includes a middle moving outer template, a middle cavity upper template block, and a middle cavity lower template block, the middle moving template block is movably connected to the upper moving template block through sliding rods 1 and 2, the middle moving outer template is provided with an upper cavity and a lower cavity, and is surrounded by sliding holes for the sliding rod 1 to be inserted, and cooling holes 1 are provided at the front and back, the middle cavity upper template block is installed in the upper cavity, and the middle cavity lower template block is installed in the lower cavity.

[0010] A mold for limiting the position of an oil cylinder as described above, wherein the middle cavity upper template block comprises a middle cavity upper template and a model forming upper template, the middle cavity upper template is provided with a model through hole 1, and a groove 4 connecting all through holes is provided on the upper surface, and the model forming upper template can be embedded in the model through hole 1;

[0011] The middle cavity lower template block comprises a middle cavity lower template and a model forming lower module, and the middle cavity lower template is provided with a second cavity and a third cavity;

[0012] The model forming lower module includes a model forming block and a model forming bottom mold. The model forming block is provided with a model through hole 2 and a positioning hole. The bottom of the model forming block is provided with a model forming bottom mold hole. The model forming bottom mold can be embedded and installed in the model forming bottom mold hole. The model forming lower module can be embedded and installed in the second cavity and the third cavity.

[0013] The above-mentioned oil cylinder limit mold, the limit rotating shaft of the limit module group is hinged to the two sides of the fixed template block through the limit bolt 1, the limit module group includes a limit component 1 and a limit component 2 arranged opposite to each other, and a limit bolt, and the limit component 1 is provided with a limit groove 1, a limit groove 2, a limit groove, and a limit rotating shaft;

[0014] The first limiting assembly further includes a left limiting member and a right limiting member, and the left limiting member and the right limiting member are symmetrically installed;

[0015] The first limiting groove is designed as a straight track, the second limiting groove is designed as an arc track, and the third limiting groove is designed as a straight track.

[0016] According to the above-mentioned mold with oil cylinder limit, the lower moving template block includes a cooling template block, a stabilizing template, a panel module, and an oil cylinder connecting plate, and a locking block is provided on the lower moving template block. The locking block reaches the limiting clamping end of the sliding rod three and is clamped under the drive of the lower moving template block, so that the sliding rod three drives the middle moving template block where the support block is located, so that the limiting rotating shaft hinged on the fixed template block starts to rotate. In the process that the limiting bolt three on the middle moving template block moves from the limiting groove two to the limiting groove three to escape from the lower end of the molded product, the limiting rotating shaft rotates to drive the limiting bolt two on the middle moving template block to move in the limiting groove one, thereby driving the injection head and the cavity plug block to escape from the upper end of the molded product;

[0017] The locking blocks are installed at the front and rear of the cooling template block and are connected to the middle moving template block through the sliding module group. The stabilizing template is fixedly installed at the lower end of the cooling template block. The enclosure module is surrounded by the upper surface of the cylinder connecting plate. The cylinder connecting plate is used to connect the cylinder to drive the entire lower moving template block to move.

[0018] In the above-mentioned oil cylinder limited mold, two sets of positioning blocks are diagonally arranged at the connection between the middle moving template block and the lower moving template block, and the positioning blocks include an upper positioning block and a lower positioning block.

[0019] As described above, a mold with oil cylinder limit, the fixed template block is provided with a glue injection head, a sliding rod 1, and two groups of cavity plug blocks, and the sliding rod 1 is used to connect the upper movable template block and the fixed template block;

[0020] The cavity insert rod block comprises a cavity insert rod and a locking block, and the cavity insert rod comprises an insert rod and an undercut block, wherein the undercut block is fixedly connected to the rear end of the insert rod.

[0021] In the above-mentioned oil cylinder limited mold, the upper movable template block is provided with a glue injection hole for inserting the glue injection head, a rod insertion hole for inserting the cavity rod, and a slide rod hole 1 for inserting the slide rod 1.

[0022] In the above-mentioned mold with oil cylinder limit, a safety plate is provided diagonally between the fixed template block and the lower movable template block to stabilize the mold.

[0023] Implementing the embodiments of the utility model has the following beneficial effects:

[0024] Through the limit module groups set on the left and right sides of the mold, when the mold is opened and closed, the sliding module group drives the middle moving template block to open and close. Because the molded product has many cavities and many water outlets, the pulling force generated by the undercut is relatively large. After the undercuts of multiple cavities accumulate, there will be a huge mold opening resistance. This mold opening resistance requires the machine to use a large impact force to pull it open, but excessive impact force is very damaging to the mold itself and the machine. The limit module groups set on both sides of the mold are hinged to the upper limit bolts of the fixed template when the lower moving template block moves to the three limit clamping ends of the sliding rod. The limiting shaft at one place starts to rotate, and the limiting bolt three connected to the middle moving template starts to move on the arc track in the limiting groove two. During the process of the limiting bolt three on the middle moving template block moving from the limiting groove two to the limiting groove three and coming out of the lower end of the molded product, the limiting shaft rotates to drive the limiting bolt two on the middle moving template block to move in the limiting groove one, thereby driving the injection head and the cavity plug block to come out of the upper end of the molded product. The limiting bolt moves in the arc track. The arc track design adopts the lever principle to effectively weaken the impact force when the limiting bolt reaches the linear track of groove three, and the middle moving template block can stop quickly, which plays a good protective role for the mold and the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 It is a schematic diagram of the structure of the utility model in use state;

[0027] Figure 2 It is a schematic diagram of the structure of the utility model;

[0028] Figure 3 It corresponds to Figure 2 A top view of

[0029] Figure 4 It corresponds to Figure 1 Right view of;

[0030] Figure 5 correspond Figure 4 A partial cross-sectional view of

[0031] Figure 6 It is a structural schematic diagram of the limiting component 1 of the utility model;

[0032] Figure 7 It corresponds to Figure 6 A cross-sectional view of

[0033] Figure 8 It is a structural schematic diagram of the middle moving outer template 32;

[0034] Fig. 9 Schematic diagram of the upper template structure of the middle cavity;

[0035] Fig.10 It is a schematic diagram of the structure of the lower template of the middle cavity;

[0036] Fig.11 It is a schematic diagram of the structure of the cavity insert rod block 14, the model forming upper mold 332, and the model forming lower module;

[0037] Fig.12 for Fig.11 Enlarged view of part C;

[0038] Fig.13 for Fig.11 A bottom view from a certain perspective;

[0039] Fig.14 for Fig.13 Enlarged view of part D. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] like Figures 1 to 14 As shown, this embodiment relates to a cylinder limit mold, including a fixed template block 1, an upper movable template block 2, a middle movable template block 3, a lower movable template block 4, a limit module group 8, and a sliding module group 9. The limit module group 8 is hinged on both sides of the fixed template block 1, the upper movable template block 2, and the middle movable template block 3. The limit module group 8 is provided with a limit rotating shaft 8214;

[0042] The lower movable template block 4 is used to connect the oil cylinder and the sliding module group 9. The oil cylinder can drive the lower movable template block 4 to move downward, and the downward movement of the lower movable template block 4 drives the middle movable template block 3 to move downward and disengage from the lower end 212 of the molded product through the sliding module group 9. The downward movement of the middle movable template block 3 also drives the limit module group 8, and the limit rotating shaft 8214 of the limit module group 8 rotates a certain angle to drive the upper movable template block 2 to disengage from the upper end 211 of the molded product.

[0043] Specifically, the sliding module group 9 is arranged on the front and rear sides of the mold, and the sliding module group 9 includes a support block 91, a sliding rod 3 92, and a locking block 93. The support block 91 is fixedly connected to the middle moving template block 3, and the tail end of the sliding rod 3 92 is fixedly connected to the support block 91. The locking block 93 is fixedly connected to the lower moving template block 4 and the locking block 93 and the sliding rod 3 92 are slidably connected. The locking block 93 can slide to the lower end surface of the support block 91 through the sliding rod 3 92 to close the mold, and the locking block 93 slides to the limit card end 94 to completely open the middle moving template block 3 and the lower moving template block 4 of the mold.

[0044] Further, the middle moving template block 3 includes a middle moving outer template 32, a middle cavity upper template block 33, and a middle cavity lower template block 34. The middle moving template block 3 is movably connected to the upper moving template block 2 through a slide bar 13 and a slide bar 2 31. The middle moving outer template 32 is provided with an upper cavity 321 and a lower cavity 324, and is surrounded by slide bar holes 322 for inserting the slide bar 13, and cooling holes 323 are provided at the front and rear. The middle cavity upper template block 33 is installed in the upper cavity 321, and the middle cavity lower template block 34 is installed in the lower cavity 324, so that the molded product 21 can be quickly cooled and molded stably.

[0045] The middle cavity upper template block 33 includes a middle cavity upper template and a model forming upper mold 332. The middle cavity upper template is provided with a model through hole 1 3311 and a groove 4 3312 connecting all through holes on the upper surface. The model forming upper mold 332 can be embedded in the model through hole 1 3311.

[0046] The middle cavity lower template block 34 includes a middle cavity lower template and a model forming lower module. The middle cavity lower template is provided with a second cavity 3411 and a third cavity 3412.

[0047] The model forming lower module includes a model forming block 3421 and a model forming bottom mold 3422. The model forming block 3421 is provided with a model through hole 2 34211 and a positioning hole 34212. The bottom of the model forming block 3421 is also provided with a model forming bottom mold hole. The model forming bottom mold 3422 can be embedded and installed in the model forming bottom mold hole. The model forming lower module can be embedded and installed in the cavity 2 3411 and the cavity 3 3412. This can ensure that the upper and lower molds of the molded product 21 are effectively opened and closed, so that the produced molded product 21 is more stable.

[0048] Secondly, the limiting rotating shaft 8214 of the limiting module group 8 is hinged to the two sides of the fixed template block 1 through the limiting bolt 1 81. The limiting module group 8 includes a limiting component 1 82 and a limiting component 2 83 arranged opposite to each other, and a limiting bolt 1 81. The limiting component 1 82 is provided with a limiting groove 1 8211, a limiting groove 2 8212, a limiting groove 3 8213, and a limiting rotating shaft 8214;

[0049] The limiting assembly 1 82 further includes a left limiting member 821 and a right limiting member 822, and the left limiting member 821 and the right limiting member 822 are symmetrically installed;

[0050] The limiting groove 1 8211 is designed as a straight track, the limiting groove 2 8212 is designed as an arc track, and the limiting groove 3 8213 is designed as a straight track. The straight track design of the limiting groove 1 8211 can better adjust the fixed template block 1 and the upper movable template block 2, so as to facilitate the pulling out of the upper end 211 of the molded product. The arc track design of the limiting groove 2 8212 uses the lever principle to weaken the impact force generated by mold opening so as to protect the mold and the machine. The straight track design of the limiting groove 3 8213 is to provide a buffer distance for the final stop of the mold after the arc track of the limiting groove 2 8212 weakens the impact force generated by mold opening.

[0051] Further, the lower moving template block 4 includes a cooling template block 41, a stabilizing template 42, a panel module 43, and a cylinder connecting plate 44. A locking block 93 is provided on the lower moving template block 4. The locking block 93 reaches the limiting clamping end 94 of the sliding rod 3 92 driven by the lower moving template block 4 and is clamped, so that the sliding rod 3 92 drives the middle moving template block 3 where the support block 91 is located, so that the limiting rotating shaft 8214 hinged on the fixed template block 1 starts to rotate. In the process of the limiting bolt 3 85 on the middle moving template block 3 moving from the limiting groove 2 8212 to the limiting groove 3 8213 to escape from the lower end 212 of the molded product, the limiting rotating shaft 8214 rotates to drive the limiting bolt 2 84 on the middle moving template block 3 to move in the limiting groove 1 8211, thereby driving the injection head 11 and the cavity plug block 14 to escape from the upper end 211 of the molded product.

[0052] The locking blocks 93 are installed at the front and rear of the cooling template block 41, and are connected to the middle moving template block 3 through the sliding module group 9. The stabilizing template 42 is fixedly installed at the lower end of the cooling template block 41. The enclosure module 43 is arranged around the upper surface of the cylinder connecting plate 44. The cylinder connecting plate 44 is used to connect the cylinder to drive the entire lower moving template block 4 to move. Such a design can ensure that the connecting plate can effectively drive the sliding module group 9 under the drive of the cylinder, and then drive the entire mold to open and close the mold.

[0053] Furthermore, two groups of positioning blocks are diagonally arranged at the connection between the middle moving template block 3 and the lower moving template block 4, and the positioning blocks include an upper positioning block 311 and a lower positioning block 312. The upper positioning block 311 has a protrusion, and the lower positioning block 312 has a groove for the protrusion of the upper positioning block 311 to be inserted into. It can be used to observe whether there is any deviation in the combination of the middle moving template block 3 and the lower moving template block 4, with higher accuracy, and it is convenient to adjust the offset of the middle moving template block 3 and the lower moving template block 4 in time to avoid the production of unqualified molded products 21.

[0054] In addition, the fixed template block 1 is provided with a glue injection head 11, a slide rod 13, and two groups of cavity plug rod blocks 14, and the slide rod 13 is used to connect the upper movable template block 2 and the fixed template block 1;

[0055] The cavity insert rod block 14 includes a cavity insert rod 12 and a locking block 141. The cavity insert rod includes an insert rod 121 and an undercut block 122. The undercut block 122 is fixedly connected to the rear end of the insert rod 121. The undercut block 122 is designed in this way to facilitate the formation of a sprue. However, a undercut force will be generated when the molded product 21 is pulled out, which will generate resistance when the mold is opened. The molded product 21 has many cavities and many sprues, and the pulling force generated by the undercut position is relatively large, and the required mold opening force is also relatively large.

[0056] Furthermore, the upper movable template block 2 is provided with a glue injection hole 22 for inserting the glue injection head 11, an insertion rod hole for inserting the cavity insertion rod 12, and a slide rod hole 1 for inserting the slide rod 13, which can ensure that the cavity insertion rod 12 and the slide rod 13 do not deviate during the opening and closing process of the fixed template block 1, the upper movable template block 2 and the middle movable template block 3.

[0057] Furthermore, a safety plate 10 is provided diagonally between the fixed template block 1 and the lower movable template block 4 to stabilize the mold and prevent damage to the mold during movement and installation.

[0058] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the protection scope of the present invention.

Claims

1. A cylinder limit mold, comprising a fixed template block (1), an upper movable template block (2), a middle movable template block (3), a lower movable template block (4), a limit module group (8), and a sliding module group (9), characterized in that: The limit module group (8) is hinged on both sides of the fixed template block (1), the upper movable template block (2), and the middle movable template block (3), and the limit module group (8) is provided with a limit rotation shaft (8214); The lower movable template block (4) is used to connect the oil cylinder and the sliding module group (9), and the oil cylinder can drive the lower movable template block (4) to move downward, and the lower movable template block (4) moves downward through the sliding module group (9) to drive the middle movable template block (3) to move downward and escape from the lower end (212) of the molded product, and the middle movable template block (3) moves downward and also drives the limit module group (8), and the limit rotating shaft (8214) of the limit module group (8) rotates a certain angle to drive the upper movable template block (2) to escape from the upper end (211) of the molded product.

2. A cylinder limiting mold according to claim 1, characterized in that: The sliding module group (9) is arranged on the front and rear sides of the mold, and the sliding module group (9) comprises a support block (91), a sliding rod three (92), and a locking block (93). The support block (91) is fixedly connected to the middle moving template block (3), the tail end of the sliding rod three (92) is fixedly connected to the support block (91), and the locking block (93) is fixedly connected to the lower moving template block (4), and the locking block (93) and the sliding rod three (92) are slidably connected.

3. The mold for limiting the oil cylinder according to claim 1, characterized in that: The middle moving template block (3) comprises a middle moving outer template (32), a middle cavity upper template block (33), and a middle cavity lower template block (34); the middle moving template block (3) is movably connected to the upper moving template block (2) via a first slide bar (13) and a second slide bar (31); an upper cavity (321) and a lower cavity (324) are formed in the middle moving outer template (32); a second slide bar hole (322) for inserting the first slide bar (13) is formed around the template; and a first cooling hole (323) is formed at the front and rear; the middle cavity upper template block (33) is mounted in the upper cavity (321); and the middle cavity lower template block (34) is mounted in the lower cavity (324).

4. The mold for limiting the oil cylinder according to claim 3, characterized in that: The middle cavity upper template block (33) comprises a middle cavity upper template and a model forming upper mold (332); the middle cavity upper template is provided with a model through hole one (3311) and a groove four (3312) connecting all the through holes is provided on the upper surface; the model forming upper mold (332) can be embedded in the model through hole one (3311); The middle cavity lower template block (34) comprises a middle cavity lower template and a model forming lower module, and the middle cavity lower template is provided with a second cavity (3411) and a third cavity (3412); The model forming lower module comprises a model forming block (3421) and a model forming bottom die (3422); the model forming block (3421) is provided with a model through hole 2 (34211) and a positioning hole (34212); the bottom of the model forming block (3421) is provided with a model forming bottom die hole; the model forming bottom die (3422) can be embedded and installed in the model forming bottom die hole; and the model forming lower module can be embedded and installed in the second cavity (3411) and the third cavity (3412).

5. The mold for limiting the oil cylinder according to claim 2, characterized in that: The limiting rotating shaft (8214) of the limiting module group (8) is hinged to two sides of the fixed template block (1) through a limiting bolt 1 (81); the limiting module group (8) comprises a limiting component 1 (82) and a limiting component 2 (83) arranged opposite to each other, and a limiting bolt 1 (81); a limiting groove 1 (8211), a limiting groove 2 (8212), a limiting groove 3 (8213), and a limiting rotating shaft (8214) are arranged in the limiting component 1 (82); The limiting assembly 1 (82) further comprises a left limiting member (821) and a right limiting member (822), wherein the left limiting member (821) and the right limiting member (822) are symmetrically installed; The limiting groove one (8211) is designed as a straight track, the limiting groove two (8212) is designed as an arc track, and the limiting groove three (8213) is designed as a straight track.

6. The mold for limiting the oil cylinder according to claim 5, characterized in that: The lower movable template block (4) comprises a cooling template block (41), a stabilizing template (42), a panel module (43), and a cylinder connecting plate (44). A locking block (93) is provided on the lower movable template block (4). Driven by the lower movable template block (4), the locking block (93) reaches the limiting clamping end (94) of the sliding rod three (92) and clamps, so that the sliding rod three (92) drives the middle movable template block (3) where the support block (91) is located, so that the hinged fixed template block (1) is The limiting rotating shaft (8214) starts to rotate, and in the process that the limiting bolt three (85) on the middle moving template block (3) moves from the limiting groove two (8212) to the limiting groove three (8213) and escapes from the lower end (212) of the molded product, the limiting rotating shaft (8214) rotates to drive the limiting bolt two (84) on the middle moving template block (3) to move in the limiting groove one (8211), thereby driving the injection head (11) and the cavity insert rod block (14) to escape from the upper end (211) of the molded product; The locking blocks (93) are installed at the front and rear of the cooling template block (41) and are connected to the middle moving template block (3) via the sliding module group (9). The stabilizing template (42) is fixedly installed at the lower end of the cooling template block (41). The enclosure module (43) is arranged around the upper surface of the cylinder connecting plate (44). The cylinder connecting plate (44) is used to connect the cylinder to drive the entire lower moving template block (4) to move.

7. The mold for limiting the oil cylinder according to claim 1, characterized in that: Two groups of positioning blocks are diagonally arranged at the connection between the middle moving template block (3) and the lower moving template block (4), and the positioning blocks include an upper positioning block (311) and a lower positioning block (312).

8. The mold for limiting the oil cylinder according to claim 1, characterized in that: The fixed template block (1) is provided with a glue injection head (11), a sliding rod (13), and two groups of cavity plug-in rod blocks (14); the sliding rod (13) is used to connect the upper movable template block (2) and the fixed template block (1); The cavity insert rod block (14) comprises a cavity insert rod (12) and a locking block (141); the cavity insert rod comprises an insert rod (121) and an undercut block (122); the undercut block (122) is fixedly connected to the rear end of the insert rod (121).

9. The oil cylinder limiting mold according to claim 8, characterized in that: The upper movable template block (2) is provided with a glue injection hole (22) for inserting the glue injection head (11), an insertion rod hole for inserting the cavity insertion rod (12), and a slide rod hole 1 for inserting the slide rod 1 (13).

10. The oil cylinder limiting mold according to claim 1, characterized in that: A safety plate (10) is provided diagonally between the fixed template block (1) and the lower movable template block (4) to stabilize the mold.

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