Mold opening sequence control mechanism

Abstract

A mold opening sequence control mechanism is installed on a mold, the mold comprises an upper mold plate, a middle mold plate and a lower mold plate which are stacked from top to bottom and further comprises a cover plate, a pull rod, a clamping block and an adjusting block, the pull rod and the cover plate are installed on the upper mold plate and the lower mold plate respectively, and the clamping block is elastically connected with the middle mold plate. A movable groove penetrating through the upper surface of the cover plate is vertically and concavely formed in the face, facing the mold, of the cover plate, the pull rod is arranged in the movable groove in an up-down sliding mode, first clamping grooves communicated with the movable groove are concavely formed in the left side and the right side of the movable groove of the cover plate, and a second clamping groove is formed in the face, facing the mold, of the pull rod and communicated with the first clamping grooves. The clamping block is clamped in the first clamping groove and the second clamping groove, the lower end of the second clamping groove is provided with a first inclined guide face inclining towards the lower portion of the outer side, the adjusting block is installed in the first clamping groove and abuts against the top wall of the first clamping groove, and the clamping block abuts against the lower surface of the adjusting block.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a mold opening sequence control mechanism. Background Art

[0002] At present, in the injection molding process of products, the mold opening and closing sequence is often required to be controlled due to the shape and characteristics of the product. The usual injection mold has a two-layer mold or a three-layer mold. When the three-layer mold is opened, the upper mold, the middle mold and the lower mold need to be separated. A control mechanism is required to control the opening sequence of the three-layer mold, so as to facilitate the control of the mold opening sequence and avoid product damage caused by the wrong mold opening sequence. However, the existing mold opening sequence control mechanism has a relatively complex structure, unstable effect and poor durability.

[0003] Therefore, in view of the problems of the current mold opening sequence control mechanism having a complex structure, high cost and poor durability, it is urgent to develop a new machine or new technology to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a mold opening sequence control mechanism to solve the problems of the current mold opening sequence control mechanism having a complex structure, high cost and poor durability.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A mold opening sequence control mechanism is installed on the mold. The mold includes an upper mold plate, a middle mold plate and a lower mold plate stacked from top to bottom, including a cover plate, a pull rod, a clamping block and an adjusting block. The pull rod and the cover plate are respectively installed on the upper mold plate and the lower mold plate. The clamping block is elastically connected to the middle mold plate. A movable groove penetrating the upper surface of the cover plate is vertically recessed on one side of the cover plate facing the mold. The pull rod can be slidably arranged in the movable groove. The cover plate is recessed on the left and right sides of the movable groove with a first clamping groove connected to the movable groove. A second clamping groove is arranged on the side of the pull rod facing the mold. The second clamping groove is connected to the first clamping groove. The card block is clamped in the first card slot and the second card slot, and the lower end of the second card slot is provided with a first inclined guide surface inclined toward the outside and downward, the adjustment block is installed in the first card slot and abuts against the top wall of the first card slot, and the card block abuts against the lower surface of the adjustment block; when the mold is opened, in the first stage, the upper template drives the pull rod to move upward, and the upper template is separated from the middle template at the same time, the pull rod abuts against the card block through the first inclined guide surface and gradually squeezes the card block to move toward the direction of the middle template, so that the card block is separated from the adjustment block, and the card block is separated from the cover plate, and in the second stage, the lower template moves downward to separate the lower template from the middle template.

[0007] Furthermore, the cover plate is provided with a mounting groove along the top wall of the first clamping groove in a direction away from the mold, and the adjusting block is installed in the mounting groove.

[0008] Furthermore, the clamping block is mounted on the middle template by means of a limit screw, and a spring is provided between the clamping block and the middle template. Through the elastic force of the spring, the clamping block is clamped in the first clamping slot and the second clamping slot.

[0009] Furthermore, a second inclined guide surface is provided on a surface of the clamping block facing away from the mold corresponding to the first inclined guide surface. When the mold is opened, the first inclined guide surface abuts against the second inclined guide surface to make the clamping block disengage from the first clamping groove and separate from the adjustment block.

[0010] Furthermore, the distance between two opposite side walls of the movable groove is greater than the left and right width of the pull rod, the upper and lower heights of the first slot are greater than the upper and lower heights of the block, and the upper and lower heights of the second slot are greater than the upper and lower heights of the block.

[0011] Furthermore, a surface of the first card slot facing the mold and a surface of the second card slot facing the mold are in the same plane.

[0012] Furthermore, a side of the adjusting block facing the mold and a side of the cover plate facing the mold are in the same plane.

[0013] Furthermore, a third inclined guide surface is provided at one end of the top of the cover plate close to the mold.

[0014] Furthermore, a fourth inclined guide surface is provided at one end of the bottom of the pull rod away from the mold, and a fifth inclined guide surface is provided in the movable groove of the cover plate corresponding to the fourth inclined guide surface, and the fifth inclined guide surface matches the fourth inclined guide surface.

[0015] Furthermore, a first mounting protrusion is protruded from the top end of the pull rod toward the upper template, and the pull rod is installed on the upper template through the first mounting protrusion; a second mounting protrusion is protruded from the bottom end of the cover plate toward the lower template, and the cover plate is installed on the lower template through the second mounting protrusion.

[0016] The utility model provides a mold opening sequence control mechanism with the beneficial effects of simple structure, cost saving, good durability, and can not only control the mold opening sequence but also improve the buckling accuracy of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a stereoscopic diagram of a mold opening sequence control mechanism and mold assembly of the utility model;

[0018] Figure 2 for Figure 1 The three-dimensional exploded view of the mold opening sequence control mechanism and the mold assembly shown;

[0019] Figure 3 It is a three-dimensional diagram of a mold opening sequence control mechanism of the utility model;

[0020] Figure 4 for Figure 3 The exploded perspective view of the mold opening sequence control mechanism shown;

[0021] Figure 5 for Figure 4 The enlarged stereogram of point A in the mold opening sequence control mechanism shown;

[0022] Figure 6 for Figure 3 A three-dimensional diagram of a tie rod of a mold opening sequence control mechanism shown;

[0023] Figure 7 for Figure 3 A three-dimensional diagram of a card block of a mold opening sequence control mechanism shown;

[0024] Figure 8 for Figure 1 A cross-sectional view of the mold opening sequence control mechanism and mold assembly is shown. DETAILED DESCRIPTION

[0025] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0026] The terms "first", "second", "third", "fourth" and the like in the specification and claims of the present utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0027] The terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "vertical", "horizontal", etc. in the specification and claims of the utility model indicate directions or position relationships based on the directions or position relationships shown in the drawings, and are only for the clarity of expressing the technical solutions and the convenience of description, and therefore cannot be understood as limitations on the present application.

[0028] See also Figure 1-Figure 4A mold opening sequence control mechanism 1 is installed on a mold 100, wherein the mold 100 includes an upper mold plate 101, a middle mold plate 102 and a lower mold plate 103 stacked from top to bottom, and includes a cover plate 30, a tie rod 10, a block 20 and an adjustment block 40, wherein the tie rod 10 and the cover plate 30 are respectively installed on the upper mold plate 101 and the lower mold plate 103, wherein the block 20 is elastically connected to the middle mold plate 102, wherein a movable groove 31 penetrating the upper surface of the cover plate 30 is vertically recessed on one side of the cover plate 30 facing the mold 100, and the tie rod 10 is slidably arranged in the movable groove 31 The cover plate 30 is provided with a first card slot 32 connected to the active slot 31 on the left and right sides of the active slot 31, and the pull rod 10 is provided with a second card slot 11 on the side facing the mold 100, and the second card slot 11 is connected to the first card slot 32, and the card block 20 is clamped in the first card slot 32 and the second card slot 11, and the lower end of the second card slot 11 is provided with a first inclined guide surface 111 inclined downward to the outside, and the adjustment block 40 is installed in the first card slot 32 and abuts against the top wall of the first card slot 32, and the card block 20 abuts against the lower surface of the adjustment block 40.

[0029] When the mold 100 is opened, in the first stage, the upper template 101 drives the pull rod 10 to move upward, and at the same time the upper template 101 is separated from the middle template 102, the pull rod 10 abuts against the block 20 through the first inclined guide surface 111 and gradually squeezes the block 20 to move toward the middle template 102, so that the block 20 is separated from the adjustment block 40, and the block 20 is separated from the cover plate 30, and in the second stage, the lower template 103 moves downward to separate the lower template 103 from the middle template 102.

[0030] The cover plate 30 is provided with a mounting groove 321 along the top wall of the first card slot 32 in a direction away from the mold 100. The adjustment block 40 is installed in the mounting groove 321 so that the adjustment block 40 abuts against the card block 20, thereby avoiding the cover plate 30 directly abutting against the card block 20 and causing wear of the cover plate 30. Repairing the worn cover plate 30 has a high maintenance cost, and the repaired cover plate 30 has poor durability. In addition, the adjustment block 40 is detachably installed in the first card slot 32. When the adjustment block 40 is worn, it can be directly replaced with a new one. On the one hand, the replacement cost is relatively low, and on the other hand, the wear of the cover plate 30 is avoided, thereby improving the durability of the mold opening sequence control mechanism 1.

[0031] More specifically, the adjusting block 40 is made of a material with relatively high hardness, which reduces the wear rate of the adjusting block 40 and improves the durability of the adjusting block 40 .

[0032] More specifically, the adjustment block 40 has a variety of different height sizes. The operator can use the adjustment block 40 with a suitable height size according to the degree of fit between the middle template 102 and the lower template 103, so that the clamping block 20 can be against the lower surface of the adjustment block 40, and at the same time the middle template 102 and the lower template 103 are fit together, thereby improving the fit accuracy of the mold 100.

[0033] As described above, the mold opening sequence control mechanism 1 proposed in the utility model has a simple structure and low cost. The mold opening sequence of the mold 100 is controlled by the cooperation of the pull rod 10, the clamping block 20 and the cover plate 30. By arranging the adjustment block 40 on the cover plate 30, not only the accuracy of the fastening of the mold 100 is improved, but also the durability of the mold opening sequence control mechanism 1 is improved.

[0034] See also Figure 3 , Figure 4 and Figure 8 The block 20 is mounted on the middle template 102 by means of a limit screw, and a spring 50 is arranged between the block 20 and the middle template 102; the spring 50 is arranged in the spring hole 22 of the block 20, and the two ends of the spring 50 respectively press against the block 20 and the middle template 102. Through the elastic force of the spring 50, the block 20 is engaged in the first slot 32 and the second slot 11, so that the middle template 102 and the lower template 103 are buckled; the block 20 is separated from the adjustment block 40 by compressing the spring 50, so that the middle template 102 and the lower template 103 are separated.

[0035] See also Figure 3 , Figure 4 and Figure 7 A second inclined guide surface 21 is provided on the side of the clamping block 20 facing away from the mold 100 and corresponds to the first inclined guide surface 111. When the mold is opened, the first inclined guide surface 111 can abut against the second inclined guide surface 21 more smoothly, so that the clamping block 20 can be separated from the first clamping groove 32 and separated from the adjusting block 40.

[0036] See also Figure 1-Figure 4 The distance between the two opposite side walls of the movable groove 31 is greater than the left and right width of the pull rod 10, so that the pull rod 10 can slide up and down in the movable groove 31. The vertical height of the first clamping groove 32 is greater than the vertical height of the clamping block 20, and the vertical height of the second clamping groove 11 is greater than the vertical height of the clamping block 20. This arrangement can ensure that the clamping block 20 can be clamped in the first clamping groove 32 and the second clamping groove 11.

[0037] The side of the first slot 32 facing the mold 100 and the side of the second slot 11 facing the mold 100 are in the same plane, so that the block 20 can be completely engaged in the first slot 32 and the second slot 11, thereby ensuring that the block 20 is smoothly matched with the first inclined guide surface 111 and the adjustment block 40 on the pull rod 10.

[0038] The side of the adjustment block 40 facing the mold 100 and the side of the cover plate 30 facing the mold 100 are in the same plane, so that the cover plate 30 fits the mold 100 when installed on the mold 100, ensuring smooth cooperation between the adjustment block 40 and the clamping block 20.

[0039] See also Figure 1 , Figure 3-Figure 6 A third inclined guide surface 33 is provided at one end of the top of the cover plate 30 close to the mold 100. When the mold 100 is closed, the lower mold plate 103 drives the cover plate 30 to move upward, the third inclined guide surface 33 abuts against the second inclined guide surface 21 of the clamping block 20, squeezes the spring 50 on the clamping block 20 to shrink it, and the clamping block 20 moves toward the direction close to the middle mold plate 102, and the cover plate 30 gradually moves upward, and the clamping block 20 is engaged with the first clamping groove 32 and abuts against the lower surface of the adjusting block 40, so that the lower mold plate 103 and the middle mold plate 102 are buckled.

[0040] The bottom end of the tie rod 10 facing away from the mold 100 is provided with a fourth inclined guide surface 12, and the movable groove 31 of the cover plate 30 is provided with a fifth inclined guide surface 311 corresponding to the fourth inclined guide surface 12, and the fifth inclined guide surface 311 cooperates with the fourth inclined guide surface 12. When the mold 100 is closed, the upper mold plate 101 drives the tie rod 10 to move downward, and the cooperation between the fourth inclined guide surface 12 and the fifth inclined guide surface 311 enables the tie rod 10 to slide smoothly downward into the movable groove 31.

[0041] See also Figure 2 , Figure 4 and Figure 8The upper template 101, the middle template 102, and the lower template 103 are respectively provided with a first mounting hole 1011, a second mounting hole 1021, and a third mounting hole 1031. The top end of the pull rod 10 is provided with a first mounting protrusion 13 toward the upper template 101, and the pull rod 10 is installed in the first mounting hole 1011 of the upper template 101 through the first mounting protrusion 13; the clamping block 20 is installed in the second mounting hole 1021 of the middle template 102 through the limit screw; the bottom end of the cover plate 30 is provided with a second mounting protrusion 34 toward the lower template 103, and the cover plate 30 is installed in the third mounting hole 1031 of the lower template 103 through the second mounting protrusion 34.

[0042] The utility model provides a mold opening sequence control mechanism with the beneficial effects of simple structure, cost saving, good durability, and can not only control the mold opening sequence but also improve the buckling accuracy of the mold.

[0043] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A mold opening sequence control mechanism, installed on a mold, wherein the mold includes an upper mold plate, a middle mold plate and a lower mold plate stacked from top to bottom, characterized in that: The invention comprises a cover plate, a pull rod, a clamping block and an adjusting block, wherein the pull rod and the cover plate are respectively mounted on the upper template and the lower template, the clamping block is elastically connected to the middle template, a movable groove penetrating the upper surface of the cover plate is vertically recessed on one side of the cover plate facing the mold, the pull rod is slidably arranged in the movable groove, the cover plate is recessed with a first clamping groove connected with the movable groove on the left and right sides of the movable groove, a second clamping groove is arranged on the side of the pull rod facing the mold, the second clamping groove is connected with the first clamping groove, the clamping block is clamped in the first clamping groove and the second clamping groove, a first inclined guide surface inclined downward to the outside is arranged at the lower end of the second clamping groove, the adjusting block is mounted in the first clamping groove and abuts against the top wall of the first clamping groove, and the clamping block abuts against the lower surface of the adjusting block; When the mold is opened, in the first stage, the upper template drives the pull rod to move upward, and the upper template is separated from the middle template. The pull rod abuts against the block through the first inclined guide surface and gradually squeezes the block to move toward the middle template, so that the block is separated from the adjustment block, and then the block is separated from the cover plate. In the second stage, the lower template moves downward to separate the lower template from the middle template.

2. A mold opening sequence control mechanism as claimed in claim 1, characterized in that: The cover plate is provided with a mounting groove along the top wall of the first clamping groove in a direction away from the mold, and the adjustment block is installed in the mounting groove.

3. A mold opening sequence control mechanism as claimed in claim 1, characterized in that: The clamping block is mounted on the middle template via a limiting screw, a spring is provided between the clamping block and the middle template, and the clamping block is clamped in the first clamping slot and the second clamping slot by the elastic force of the spring.

4. A mold opening sequence control mechanism as claimed in claim 3, characterized in that: A second inclined guide surface is provided on a surface of the clamping block facing away from the mold corresponding to the first inclined guide surface. When the mold is opened, the first inclined guide surface abuts against the second inclined guide surface to make the clamping block disengage from the first clamping groove and separate from the adjusting block.

5. A mold opening sequence control mechanism as claimed in claim 1, characterized in that: The distance between the two opposite side walls of the movable groove is greater than the left and right width of the pull rod, the upper and lower heights of the first slot are greater than the upper and lower heights of the block, and the upper and lower heights of the second slot are greater than the upper and lower heights of the block.

6. A mold opening sequence control mechanism as claimed in claim 1, characterized in that: A surface of the first card slot facing the mold and a surface of the second card slot facing the mold are located in the same plane.

7. A mold opening sequence control mechanism as claimed in claim 1, characterized in that: A surface of the adjusting block facing the mold and a surface of the cover plate facing the mold are located in the same plane.

8. A mold opening sequence control mechanism as claimed in claim 1, characterized in that: A third inclined guide surface is arranged at one end of the top of the cover plate close to the mold.

9. A mold opening sequence control mechanism as claimed in claim 1, characterized in that: A fourth inclined guide surface is arranged at one end of the bottom of the pull rod away from the mold, and a fifth inclined guide surface is arranged corresponding to the fourth inclined guide surface in the movable groove of the cover plate, and the fifth inclined guide surface matches the fourth inclined guide surface.

10. A mold opening sequence control mechanism as claimed in claim 1, characterized in that: The top end of the pull rod is provided with a first mounting protrusion protruding toward the upper template, and the pull rod is installed on the upper template via the first mounting protrusion; the bottom end of the cover plate is provided with a second mounting protrusion protruding toward the lower template, and the cover plate is installed on the lower template via the second mounting protrusion.

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