High-stability moving die sliding module

Abstract

The utility model relates to a high-stability movable mold sliding module which comprises a movable mold plate, a rack and a guide rod and further comprises a fixing plate and a positioning structure, and the positioning structure comprises a pushing block and positioning crank arms symmetrically arranged on the two opposite sides of the pushing block; the positioning crank arm comprises a connecting rod, an L-shaped rod, a transmission rod, a first positioning block and a second positioning block; the L-shaped rod comprises a first rod and a second rod; the other end of the connecting rod is hinged to the end, away from the second rod, of the first rod. A first positioning block is hinged to the end, away from the first rod, of the second rod, a transmission rod is hinged to the joint of the first rod and the second rod, and a second positioning block is hinged to the end, away from the L-shaped rod, of the transmission rod. The movable mold plate is slidably connected to the guide rod and slidably connected to the fixed plate through the positioning sliding rod, the crank arm is connected with the fixed plate and the movable mold plate, the relevance between the movable mold plate and the fixed plate is high through multi-position connection, the movable mold plate slides more stably, the mold closing precision of the fixed mold and the movable mold is guaranteed, and the service life of the injection molding machine is prolonged.

Description

Technical Field

[0001] The present application relates to the field of injection molding machines, and in particular to a highly stable movable mold sliding module. Background Art

[0002] The injection molding machine is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics. It is divided into vertical, horizontal, and all-electric types. The injection molding machine can heat the plastic and apply high pressure to the molten plastic to make it eject and fill the mold cavity. The injection molding machine includes a frame, an injection molding mechanism, a movable mold, a fixed mold, and a drive assembly that drives the movable mold to slide. In the related art, the movable mold is easy to loosen after sliding on the frame, resulting in a decrease in the clamping accuracy of the fixed mold and the movable mold, and reducing the service life of the injection molding machine. Utility Model Content

[0003] In order to extend the service life of an injection molding machine, the present application provides a highly stable movable mold sliding module.

[0004] The present application provides a highly stable movable mold sliding mold assembly, which adopts the following technical solution:

[0005] A high-stability movable mold sliding mold group comprises a movable mold plate, a frame and a guide rod, the movable mold plate is slidably connected to the guide rod, and also comprises a fixed plate arranged on the frame and a positioning structure located between the fixed plate and the movable mold plate, the positioning structure comprises a pushing block and positioning curved arms symmetrically arranged on opposite sides of the pushing block; a positioning sliding rod is fixed to the movable mold plate on one side facing the fixed plate, a through hole for the positioning sliding rod to slide is provided on the fixed plate, the pushing block is fixed on the positioning sliding rod, the positioning curved arm comprises a connecting rod, an L-shaped rod, a transmission rod, a first positioning block and a second positioning block, the L-shaped rod comprises a first rod and a second rod connected at an angle at their ends; one end of the connecting rod is hinged to the pushing block, and the other end of the connecting rod is hinged to the end of the first rod away from the second rod; the end of the second rod away from the first rod is hinged to the first positioning block, the connection between the first rod and the second rod is hinged to the transmission rod, and the end of the transmission rod away from the L-shaped rod is hinged to the second positioning block;

[0006] The first positioning block is fixed to the fixed plate, and the second positioning block is fixed to the movable plate.

[0007] By adopting the above technical solution, the positioning plate is fixed on the frame. When the movable template needs to be driven to slide, the push block is driven to slide first, so that the positioning slide bar slides on the fixed plate. At the same time, due to the transmission of the positioning crank arm, the movable template slides, so that the movable template moves away from the fixed plate and slides. When in use, the fixed template is fixed to the side of the movable template away from the fixed plate to achieve mold opening and mold closing. The movable template is slidably connected to the guide rod and slidably connected to the fixed plate through the positioning slide bar, and the crank arm connects the fixed plate and the movable template. Multiple connections make the movable template highly correlated with the fixed plate, and the sliding of the movable template is more stable, which ensures the mold closing accuracy of the fixed mold and the movable mold and extends the service life of the injection molding machine.

[0008] Optionally, a support platform is fixed on the fixed plate, the support platform is fixed to a side of the first positioning block facing the center of the fixed plate, and a side wall of the support platform abuts against the first positioning block.

[0009] By adopting the above technical solution, when the first positioning block is located above the support platform, the support platform supports the first positioning block so that the first positioning block is stably fixed on the fixing plate, and the first positioning block is firmly connected to the fixing plate and is not easy to loosen.

[0010] Optionally, a first positioning groove is formed on the fixing plate, and the first positioning block is fixed in the first positioning groove.

[0011] By adopting the above technical solution, the first positioning groove determines the fixed position of the first positioning block, which facilitates the fixing of the first positioning block.

[0012] Optionally, a second positioning groove is provided on the movable template, and the second positioning block is fixed in the second positioning groove.

[0013] By adopting the above technical solution, the second positioning groove facilitates the fixation of the second positioning block.

[0014] Optionally, a connecting plate is further included, and at least two positioning slide rods are provided. The connecting plate is provided with connecting holes for the at least two positioning slide rods to pass through, and the at least two positioning slide rods fix the connecting plate.

[0015] By adopting the above technical solution, the connecting plate connects at least two positioning slide bars, thereby improving the strength of the positioning slide bars and making the positioning slide bars less likely to deform.

[0016] Optionally, an ejector rod is slidably connected to the connecting plate, an ejector hole for the ejector rod to pass through is opened at the center of the movable template, and a driving mechanism for driving the ejector rod to slide is provided on the movable template.

[0017] By adopting the above technical solution, the ejector rod is connected to the ejector mechanism of the mold, so that the injection molded product can be ejected from the mold cavity and demoulding is convenient.

[0018] Optionally, the driving mechanism includes a rotating wheel, a transmission wheel, a belt and a stepper motor, the rotating wheel is rotatably connected to the side of the movable template facing the fixed plate; a threaded hole opposite to the ejection hole is opened in the center of the rotating wheel, the ejection rod is threadedly connected in the threaded hole, the transmission wheel is rotatably connected to the end of the movable template, the belt is tensioned to connect the transmission wheel and the rotating wheel, and the stepper motor drives the transmission wheel to rotate forward and reverse.

[0019] By adopting the above technical solution, the stepper motor drives the transmission wheel to rotate forward and reverse, and through the belt transmission, the rotating wheel rotates forward and reverse, thereby driving the ejector rod to slide in the ejector hole. When the product needs to be ejected, the ejector rod slides away from the fixed plate. When the mold is closed, the ejector rod slides close to the fixed plate, which facilitates the demolding of the product.

[0020] In summary, the present application includes at least one of the following beneficial technical effects:

[0021] 1. The movable platen is slidably connected to the guide rod and slidably connected to the fixed plate through the positioning slide rod. The crank arm connects the fixed plate and the movable platen. Multiple connections make the movable platen highly correlated with the fixed platen, and the sliding of the movable platen is more stable, ensuring the clamping accuracy of the fixed mold and the movable mold and extending the service life of the injection molding machine.

[0022] 2. The support platform makes the first positioning block firmly connected to the fixed plate and is not easy to loosen;

[0023] 3. The ejector rod and drive mechanism facilitate product demoulding. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is an overall schematic diagram of the high-stability movable mold sliding module of an embodiment of the present application.

[0025] Figure 2 Schematic diagram of the overall positioning structure of the embodiment.

[0026] Figure 3 Schematic diagram of the movable plate, fixed plate, positioning structure and driving mechanism of the embodiment Figure 1 , mainly showing the structure of the first positioning groove and the ejection hole.

[0027] Figure 4 Schematic diagram of the movable plate, fixed plate, positioning structure and driving mechanism of the embodiment Figure 2 , mainly showing the structure of the driving mechanism.

[0028] Explanation of the accompanying drawings: 1. movable template; 11. positioning slide bar; 12. ejection hole; 2. frame; 3. guide rod; 4. fixed plate; 41. through hole; 42. driving hole; 5. positioning structure; 51. pushing block; 511. driving rod; 52. positioning crank arm; 521. connecting rod; 522. L-shaped rod; 5221. first rod; 5222. second rod; 523. transmission rod; 524. first positioning block; 5241. first positioning groove; 525. second positioning block; 5251. second positioning groove; 6. support platform; 7. connecting plate; 71. connecting hole; 8. ejection rod; 9. driving mechanism; 91. rotating wheel; 911. threaded hole; 92. transmission wheel; 93. belt; 94. stepping motor; 95. mounting seat. DETAILED DESCRIPTION

[0029] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0030] The present application embodiment discloses a highly stable movable mold sliding mold assembly. Figure 1 The high-stability movable mold sliding mold assembly includes a movable mold plate 1, a frame 2 and a guide rod 3. The guide rod 3 is horizontally fixed on the frame 2, and there are four guide rods 3. Guide holes for the guide rods 3 to pass through are opened at the four corners of the movable mold plate 1, and the movable mold plate 1 is slidably connected to the guide rods 3.

[0031] Reference Figure 1 , Figure 2 The high-stability movable mold sliding mold assembly also includes a fixed plate 4 and a positioning structure 5. The fixed plate 4 is fixed to the guide rod 3, so that the fixed plate 4 is fixed to the frame 2. The positioning structure 5 is located between the fixed plate 4 and the movable mold plate 1. The positioning structure 5 includes a push block 51 and two groups of positioning crank arms 52 symmetrically arranged on the upper and lower sides of the push block 51.

[0032] Reference Figure 1 At least two positioning slide bars 11 are fixed to the side of the movable plate 1 facing the fixed plate 4. In the embodiment, two positioning slide bars are provided. The two positioning slide bars 11 are located at the left and right ends of the movable plate 1. The fixed plate 4 is provided with through holes 41 for the positioning slide bars 11 to slide. When the movable plate 1 slides, the positioning slide bars 11 slide in the through holes 41.

[0033] Reference Figure 1 The pushing block 51 is fixed on the positioning slide rod 11, and a driving rod 511 is fixed to the pushing block 51. A driving hole 42 for the driving rod 511 to pass through is opened in the center of the fixing plate 4. The driving rod 511 is used to connect to a driving source, and the driving source drives the driving rod 511 to slide in the driving hole 42.

[0034] Reference Figure 1 , Figure 2The positioning crank arm 52 includes a connecting rod 521, an L-shaped rod 522, a transmission rod 523, a first positioning block 524 and a second positioning block 525. The L-shaped rod 522 includes a first rod 5221 and a second rod 5222 whose ends are integrally formed at right angles. In the positioning crank arm 52 located above the push block 51, the bottom end of the connecting rod 521 is hinged to the push block 51, the top end of the connecting rod 521 is hinged to the end of the first rod 5221 away from the second rod 5222, the end of the second rod 5222 away from the first rod 5221 extends close to the fixed plate 4, the end of the second rod 5222 away from the first rod 5221 is hinged to the first positioning block 524, and the first positioning block 524 is fixed to the fixed plate 4; the connection between the first rod 5221 and the second rod 5222 is hinged to the transmission rod 523, the end of the transmission rod 523 away from the L-shaped rod 522 is hinged to the second positioning block 525, and the second positioning block 525 fixes the movable template 1. The positioning curved arm 52 located above the pushing block 51 is symmetrically arranged with the positioning curved arm 52 located above the pushing block 51 , and will not be described in detail here.

[0035] Reference Figure 1 , Figure 3 The fixed plate 4 is provided with two first positioning grooves 5241, and the two first positioning blocks 524 are fixed in the first positioning grooves 5241. The movable plate 1 is provided with two second positioning grooves 5251, and the two second positioning blocks 525 are fixed in the second positioning grooves 5251. The installation of the first positioning block 524 and the second positioning block 525 is convenient.

[0036] Reference Figure 3 Two support platforms 6 are fixed on the fixed plate 4. The support platforms 6 are fixed to the side of the first positioning block 524 facing the center of the fixed plate 4. The side walls of the support platforms 6 abut against the first positioning block 524, thereby supporting the first positioning block 524 and making the connection between the first positioning block 524 and the fixed plate 4 stable.

[0037] Reference Figure 1 , Figure 3 and Figure 4 The high-stability movable mold sliding mold group also includes a connecting plate 7, which is provided with a connecting hole 71 for two positioning slide bars 11 to pass through, and the two positioning slide bars 11 fix the connecting plate 7. The connecting plate 7 is slidably connected with an ejector rod 8, and the center of the movable mold plate 1 is provided with an ejector hole 12 for the ejector rod 8 to pass through, and a driving mechanism 9 for driving the ejector rod 8 to slide is provided at one end of the movable mold plate 1 in the horizontal direction.

[0038] Reference Figure 4The driving mechanism 9 includes a rotating wheel 91, a transmission wheel 92, a belt 93 and a stepper motor 94. A mounting seat 95 is fixed to one end of the movable plate 1 in the horizontal direction, and the transmission wheel 92 is rotatably connected to the mounting seat 95, so that the transmission wheel 92 is rotatably connected to the movable plate 1. The stepper motor 94 is fixed to the mounting seat 95, and the motor shaft of the stepper motor 94 is coaxially fixed with the transmission wheel 92. The rotating wheel 91 is rotatably connected to the side of the movable plate 1 facing the fixed plate 4, and a threaded hole 911 facing the ejection hole 12 is provided in the center of the rotating wheel 91, and the ejection rod 8 is threadedly connected in the threaded hole 911. The belt 93 is tensioned to connect the transmission wheel 92 and the rotating wheel 91, and the stepper motor 94 drives the transmission wheel 92 to rotate forward and reverse, thereby realizing the ejection and resetting of the ejection rod 8.

[0039] The implementation principle of a high-stability movable mold sliding mold assembly in the embodiment of the present application is as follows: when in use, the fixed mold plate is fixed to the side of the movable mold plate 1 away from the fixed plate 4, the mold is installed between the movable mold plate 1 and the fixed mold plate, the driving source drives the driving rod 511 to extend and retract, drives the push block 51 to slide, and then cooperates with the positioning debend arm to slide the movable mold plate 1 to achieve mold opening and closing. When the product needs to be ejected, the stepper motor 94 rotates, and the transmission is transmitted through the transmission wheel 92 and the rotating wheel 91, so that the ejection rod 8 extends out of the ejection hole 12 to achieve product demolding.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high-stability movable mold sliding mold assembly, comprising a movable mold plate (1), a frame (2) and a guide rod (3), wherein the movable mold plate (1) is slidably connected to the guide rod (3), and is characterized in that: The machine also comprises a fixed plate (4) arranged on the frame (2) and a positioning structure (5) located between the fixed plate (4) and the movable plate (1), wherein the positioning structure (5) comprises a pushing block (51) and positioning crank arms (52) symmetrically arranged on opposite sides of the pushing block (51); a positioning slide bar (11) is fixed on the movable plate (1) on the side facing the fixed plate (4); a through hole (41) for the positioning slide bar (11) to slide is provided on the fixed plate (4); the pushing block (51) is fixed on the positioning slide bar (11); the positioning crank arms (52) comprise a connecting rod (521), an L-shaped rod (522), a transmission rod (523), a first positioning block (524) and A second positioning block (525), the L-shaped rod (522) comprises a first rod (5221) and a second rod (5222) whose ends are connected at an angle; one end of the connecting rod (521) is hinged to the pushing block (51), and the other end of the connecting rod (521) is hinged to the end of the first rod (5221) away from the second rod (5222); the end of the second rod (5222) away from the first rod (5221) is hinged to the first positioning block (524), the connection between the first rod (5221) and the second rod (5222) is hinged to a transmission rod (523), and the end of the transmission rod (523) away from the L-shaped rod (522) is hinged to the second positioning block (525); The first positioning block (524) is fixed to the fixed plate (4), and the second positioning block (525) is fixed to the movable plate (1).

2. The high stability movable mold sliding mold assembly according to claim 1, characterized in that: A support platform (6) is fixed on the fixed plate (4), and the support platform (6) is fixed to a side of the first positioning block (524) facing the center of the fixed plate (4), and a side wall of the support platform (6) abuts against the first positioning block (524).

3. The high stability movable mold sliding mold assembly according to claim 1, characterized in that: The fixing plate (4) is provided with a first positioning groove (5241), and the first positioning block (524) is fixed in the first positioning groove (5241).

4. The high stability movable mold sliding mold assembly according to claim 1, characterized in that: The movable template (1) is provided with a second positioning groove (5251), and the second positioning block (525) is fixed in the second positioning groove (5251).

5. The high stability movable mold sliding mold assembly according to claim 1, characterized in that: It also comprises a connecting plate (7), at least two positioning slide bars (11) are provided, the connecting plate (7) is provided with connecting holes (71) for the at least two positioning slide bars (11) to pass through, and the at least two positioning slide bars (11) fix the connecting plate (7).

6. The high stability movable mold sliding mold assembly according to claim 5, characterized in that: An ejector rod (8) is slidably connected to the connecting plate (7), an ejector hole (12) for the ejector rod (8) to pass through is provided at the center of the movable plate (1), and a driving mechanism (9) for driving the ejector rod (8) to slide is provided on the movable plate (1).

7. The high stability movable mold sliding mold assembly according to claim 6, characterized in that: The driving mechanism (9) comprises a rotating wheel (91), a transmission wheel (92), a belt (93) and a stepping motor (94); the rotating wheel (91) is rotatably connected to the side of the movable plate (1) facing the fixed plate (4); a threaded hole (911) facing the ejection hole (12) is provided at the center of the rotating wheel (91); the ejection rod (8) is threadedly connected in the threaded hole (911); the transmission wheel (92) is rotatably connected to the end of the movable plate (1); the belt (93) is tensioned to connect the transmission wheel (92) and the rotating wheel (91); and the stepping motor (94) drives the transmission wheel (92) to rotate forward and reverse.

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