Pull rod drawing device of injection molding machine

Abstract

The utility model relates to the technical field of injection molding machines, and discloses a pull rod drawing device of an injection molding machine, the pull rod drawing device is assembled on the injection molding machine, the injection molding machine comprises a template and a pull rod, the pull rod drawing device comprises a connecting plate which is detachably connected with the pull rod, the connecting plate is provided with a first connecting part, a second connecting part and a third connecting part, the first connecting part, the second connecting part and the third connecting part form a triangular layout; the driving assembly comprises a first driving structure and a second driving structure which are detachably arranged on the template, the first driving structure is connected with the first connecting part, and the second driving structure is connected with the second connecting part; the guide assembly is detachably arranged on the template and is connected with the third connecting part; when the pull rod moves, the first driving structure, the second driving structure and the guide assembly respectively support the pull rod. The pull rod drawing device of the injection molding machine provided by the utility model is compact in structure and stable in performance.

Description

TECHNICAL FIELD

[0001] The utility model belongs to injection molding machine technical field, concretely relates to a pull rod pull device of injection molding machine. BACKGROUND

[0002] The pull rod in injection molding machine is the key component of ensuring the stability of mould and the locking force, and in the process of opening and closing mould, the pull rod will stretch or shrink along with the movement of movable die plate: when the mould is closed, the pull rod is pulled tight to exert the locking force; when the mould is opened, the pull rod is relaxed, so that the movable die plate can be away from the fixed die plate. When using injection molding machine, sometimes the mould with large size needs to be installed, in order to ensure the smooth assembly of the large-size mould, the traditional injection molding machine is usually equipped with pull rod extraction device, which can temporarily separate the pull rod from the die plate when assembling the mould, and reset it after the mould is installed. However, the existing pull rod extraction device can only provide single-point support for the pull rod, and the carrying capacity is limited, which leads to the instability of the pull rod in the pulling process. SUMMARY

[0003] The utility model aims at the above problems existing in prior art, provides a kind of pull rod extraction device of injection molding machine, which can provide multi-point support for pull rod, with high stability and easy to disassemble and assemble.

[0004] The utility model can be realized by the following technical scheme, a kind of pull rod extraction device of injection molding machine, it is assembled on injection molding machine, the injection molding machine includes die plate and movablely arranged on the die plate pull rod, the pull rod extraction device includes:

[0005] Connecting plate, the connecting plate is detachably connected with the pull rod, first connecting portion, second connecting portion and third connecting portion are arranged on the connecting plate, and the first connecting portion, second connecting portion and third connecting portion form a triangular layout;

[0006] Drive assembly, the drive assembly includes first drive structure and second drive structure detachably arranged on the die plate, the first drive structure is connected with the first connecting portion, and the second drive structure is connected with the second connecting portion;

[0007] Guide assembly, the guide assembly is detachably arranged on the die plate and connected with the third connecting portion;When the pull rod moves, the first drive structure, second drive structure and guide assembly form support to the pull rod respectively.

[0008] In the above-mentioned pull rod extraction device of injection molding machine, the connecting plate has a fixed portion detachably connected with the pull rod, the first connecting portion, the second connecting portion and the third connecting portion extend outward along the fixed portion, and the first connecting portion and the second connecting portion are on the same horizontal line and have a height difference with the third connecting portion.

[0009] In the pull rod pulling device of the injection molding machine, a plurality of first fixing holes are arranged on the fixing part, the first fixing holes are arranged circumferentially on the fixing part, and the first fixing holes are detachably connected to the pull rod through a screw rod.

[0010] In the pull rod pulling device of the injection molding machine, the diameter of the fixing part is greater than the diameter of the pull rod, and a plurality of second fixing holes are arranged on the fixing part, the second fixing holes are detachably connected to the mold plate through a bolt.

[0011] In the pull rod pulling device of the injection molding machine, a plurality of first connecting holes are arranged on the first connecting part, the first connecting holes are detachably connected to the first driving structure through a bolt, and the first driving structure comprises a first movable part detachably connected to the first connecting hole.

[0012] In the pull rod pulling device of the injection molding machine, a plurality of second connecting holes are arranged on the second connecting part, the second connecting holes are detachably connected to the second driving structure through a bolt, and the second driving structure comprises a second movable part detachably connected to the second connecting hole.

[0013] In the pull rod pulling device of the injection molding machine, the first driving structure further comprises a first guide rod detachably connected to the mold plate, the first movable part is movably sleeved on the first guide rod, the second driving structure further comprises a second guide rod detachably connected to the mold plate, the second movable part is movably sleeved on the second guide rod, and the first connecting part and the second connecting part are respectively provided with through holes for the first guide rod and the second guide rod to pass through.

[0014] In the pull rod pulling device of the injection molding machine, a plurality of third connecting holes are arranged on the third connecting part, the third connecting holes are detachably connected to the guide assembly through a bolt, and the guide assembly comprises a sliding block detachably connected to the third connecting hole.

[0015] In the pull rod pulling device of the injection molding machine, the guide assembly further comprises a support seat detachably connected to the mold plate, the support seat extends along the movement direction of the pull rod, and the support seat is provided with a guide rail towards the side of the third connecting part, and the guide rail is movably connected to the sliding block.

[0016] In the pull rod pulling device of the injection molding machine, a fixing plate is provided, one end of the fixing plate is detachably connected to the extension end of the support seat, and the other end is detachably connected to the first driving structure and the second driving structure, respectively.

[0017] Compared with the prior art, the utility model discloses the beneficial effects are: through setting up and the pull rod detachable connection's connecting plate, make the connecting plate have the first connecting portion, second connecting portion and third connecting portion of triangular distribution, and detachably set up first drive structure, second drive structure and guide assembly on the template, make first drive structure and second drive structure link with first connecting portion and second connecting portion respectively, and guide assembly links with third connecting portion, to make the pull rod when moving, first drive structure, second drive structure and guide assembly can form the multi -point support of different orientation to the pull rod. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is the structural schematic diagram of the pull rod pulling device of the utility model embodiment.

[0019] Fig. 2 It is the explosion drawing of the pull rod pulling device of the utility model embodiment.

[0020] Fig. 3 It is the structural schematic diagram of the pull rod pulling device of the utility model embodiment assembles on the injection molding machine.

[0021] In all drawings, same reference signs represent same technical features, and specifically: 100, connecting plate;110, first connecting portion;111, first connecting hole;112, through hole;120, second connecting portion;121, second connecting hole;130, third connecting portion;131, third connecting hole;140, fixed part;141, first fixed hole;142, second fixed hole;200, first drive structure;210, first movable piece;220, first guide rod;300, second drive structure;310, second movable piece;320, second guide rod;400, guide assembly;410, support seat;420, sliding block;430, guide rail;500, fixed plate;600, connecting seat;700, template;800, pull rod. DETAILED DESCRIPTION

[0022] The following are specific embodiments of the utility model and are further described in conjunction with the drawings, but the utility model is not limited to these embodiments.

[0023] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the utility model embodiments are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0024] As Figs. 1-3 shown in the drawings, a pull rod pulling device of an injection molding machine is assembled on the injection molding machine, the injection molding machine comprises a template 700 and a pull rod 800 movably arranged on the template 700, and the pull rod pulling device comprises:

[0025] a connecting plate 100, the connecting plate 100 is detachably connected with the pull rod 800, the connecting plate 100 is provided with a first connecting part 110, a second connecting part 120 and a third connecting part 130, and the first connecting part 110, the second connecting part 120 and the third connecting part 130 form a triangular layout;

[0026] a driving assembly, the driving assembly comprises a first driving structure 200 and a second driving structure 300 which are detachably arranged on the template 700, the first driving structure 200 is connected with the first connecting part 110, and the second driving structure 300 is connected with the second connecting part 120;

[0027] a guide assembly 400, the guide assembly 400 is detachably arranged on the template 700 and connected with the third connecting part 130; when the pull rod 800 moves, the first driving structure 200, the second driving structure 300 and the guide assembly 400 respectively form supports for the pull rod 800. The design provides multiple directional multi-point supports for the pull rod 800, significantly improves the stability of the pull rod 800 during the pulling process, avoids the pull rod 800 from tilting or deviating, and reduces the lateral force generated by the pull rod 800 during the pulling process, reduces the risk of equipment failure, and ensures the safety of the operator.

[0028] Specifically, as Fig. 3 shown in the drawings, in the embodiment, the injection molding machine comprises the template 700 and the pull rod 800, the template 700 is rectangular, and is provided with a movable hole through which the pull rod 800 passes, the pull rod 800 is movably arranged in the movable hole and can move along the axial direction of itself, and the end of the pull rod 800 has a first mounting hole which forms a detachable connection with the connecting plate 100, and the template 700 has a second mounting hole which forms a detachable connection with the connecting plate 100, the driving assembly and the guide assembly 400.

[0029] As Figs. 1-3 shown in the drawings, in the embodiment, the pull rod pulling device is installed on the injection molding machine, which comprises the connecting plate 100, the driving assembly and the guide assembly 400, for smoothly pulling out or resetting the pull rod 800, so that the injection molding machine can be smoothly assembled with a large-size mold.

[0030] In the embodiment, the connecting plate 100 has a fixed part 140 detachably connected with the pull rod 800, and a first connecting part 110, a second connecting part 120 and a third connecting part 130 arranged on the fixed part 140 and extending outward along the fixed part 140, and the first connecting part 110, the second connecting part 120 and the third connecting part 130 extend in different directions respectively, wherein the first connecting part 110 and the second connecting part 120 are on the same horizontal line and have a height difference with the third connecting part 130, so that the first connecting part 110, the second connecting part 120 and the third connecting part 130 form a triangular layout. The design makes the connecting plate 100 and the driving assembly and the guide assembly 400 form a stable multi-directional connection, so that when the pull rod 800 moves, the connecting plate 100 connected with the pull rod 800 can form multi-point support in multiple directions for the pull rod 800, effectively dispersing the lateral force generated during the pulling process of the pull rod 800, reducing the risk of excessive stress on a single point, and prolonging the service life of each component; and through the stable triangular layout, the stability during the pulling process of the pull rod 800 is effectively improved. In addition, since the first connecting part 110 and the second connecting part 120 are on the same horizontal line, it ensures that the first driving structure 200 and the second driving structure 300 can apply force more uniformly, avoiding uneven stress on the pull rod 800.

[0031] In the embodiment, the fixed part 140 is circular, and a plurality of first fixing holes 141 are arranged through the fixed part 140, the first fixing holes 141 are arranged circumferentially along the fixed part 140, and the first fixing holes 141 are detachably connected with the pull rod 800 through bolts. Preferably, the first fixing holes 141 are four, and are annularly and equidistantly distributed around the center point of the fixed part 140. The design not only improves the firmness of the connection between the connecting plate 100 and the pull rod 800, but also ensures the flexibility during disassembly and assembly, facilitating quick adjustment and replacement. In addition, the design of multiple first fixing holes 141 can also disperse the pressure at the connection point of the connecting plate 100 and the pull rod 800, reduce the risk of excessive stress on a single point, and improve the reliability and durability of the connection between the two.

[0032] In the embodiment, the diameter of the fixed part 140 is greater than the diameter of the pull rod 800, and a plurality of second fixing holes 142 are arranged through the fixed part 140, and the second fixing holes 142 are detachably connected with the template 700 through bolts. Preferably, the second fixing holes 142 are eight, annularly and equidistantly distributed around the center point of the fixed part 140, and have gaps between the first fixing holes 141. The design makes the connecting plate 100 firmly fixed on the template 700 in a non-use state, effectively reducing the weight of the driving assembly below.

[0033] In the embodiment, the first connecting part 110 extends laterally towards the left side of the fixed part 140, and a plurality of first connecting holes 111 are arranged on the first connecting part 110 and detachably connected with the first driving structure 200 through bolts. Preferably, three first connecting holes 111 are arranged in an arc shape. This design makes the connection between the connecting plate 100 and the first driving structure 200 more firm, improves the stability of the movement of the pull rod 800, and ensures the convenience of disassembly and assembly of the connecting plate 100 and the first driving structure 200.

[0034] In the embodiment, the second connecting part 120 extends laterally towards the right side of the fixed part 140, and a plurality of second connecting holes 121 are arranged on the second connecting part 120 and detachably connected with the second driving structure 300 through bolts. Preferably, three second connecting holes 121 are arranged in an arc shape. This design makes the connection between the connecting plate 100 and the second driving structure 300 more firm, improves the stability of the movement of the pull rod 800, and ensures the convenience of disassembly and assembly of the connecting plate 100 and the second driving structure 300.

[0035] In the embodiment, the first connecting part 110 and the second connecting part 120 are respectively provided with circular through holes 112 for the first guide rod 220 and the second guide rod 320 to pass through. This design makes the structure of the driving assembly and the connecting plate 100 more compact, and improves the utilization rate of the connecting plate 100.

[0036] In the embodiment, the third connecting part 130 extends vertically upwards towards the fixed part 140, and a plurality of third connecting holes 131 are arranged on the third connecting part 130 and detachably connected with the guide assembly 400 through bolts. Preferably, six third connecting holes 131 are arranged in a straight line. This design makes the connection between the connecting plate 100 and the guide assembly 400 more firm, improves the stability of the movement of the pull rod 800, and ensures the convenience of disassembly and assembly of the connecting plate 100 and the guide assembly 400.

[0037] In the embodiment, the driving assembly is a power component for driving the pull rod 800 to move, and includes the first driving structure 200 and the second driving structure 300 which are respectively detachably arranged on the template 700. The first driving structure 200 and the second driving structure 300 are respectively located on the lower sides of the pull rod 800, and the first driving structure 200 is connected with the first connecting part 110 and the second driving structure 300 is connected with the second connecting part 120. The cooperation of the double driving structure with the first connecting part 110 and the second connecting part 120 effectively improves the carrying capacity of the device and further ensures the stability of the pull rod 800 during pulling.

[0038] In the embodiment, the first driving structure 200 comprises a first guide rod 220 and a first movable element 210. The first guide rod 220 is detachably connected with the template 700 at one end through the through hole 112 of the first connecting part 110 and extends along the movement direction of the pull rod 800. The first movable element 210 is movably sleeved on the first guide rod 220 and detachably connected with the first connecting hole 111 through a bolt. The design enables the first driving structure 200 to drive the connecting plate 100 to move the pull rod 800 along the length direction of the first guide rod 220 through the first movable element 210, so as to realize the pulling and resetting of the pull rod 800.

[0039] In the embodiment, the second driving structure 300 comprises a second guide rod 320 and a second movable element 310. The second guide rod 320 is arranged in parallel with the first guide rod 220. The second guide rod 320 is detachably connected with the template 700 at one end through the through hole 112 of the second connecting part 120 and extends along the movement direction of the pull rod 800. The second movable element 310 is movably sleeved on the second guide rod 320 and detachably connected with the second connecting hole 121 through a bolt. The design enables the second driving structure 300 to drive the connecting plate 100 to move the pull rod 800 along the length direction of the second guide rod 320 through the second movable element 310, so as to realize the pulling and resetting of the pull rod 800.

[0040] Preferably, in the embodiment, the first guide rod 220 and the second guide rod 320 are detachably connected with the template 700 through the connecting seat 600. The connecting seat 600 is in T shape. One end of the connecting seat 600 is detachably connected with the template 700, and the other end of the connecting seat 600 is detachably connected with the first guide rod 220 or the second guide rod 320. The design effectively improves the connection stability and the convenience of disassembly of the first guide rod 220, the second guide rod 320 and the template 700.

[0041] In order to further improve the stability of the pulling of the pull rod 800, in the embodiment, the template 700 is detachably provided with a guide assembly 400. The guide assembly 400 is located above the pull rod 800 and detachably connected with the third connecting part 130. The design can form multi-point support for the pull rod 800 in cooperation with the first driving structure 200 and the second driving structure 300, and can also guide the pulling and resetting of the pull rod 800. The design can ensure the stability of the movement of the pull rod 800 and also improve the smoothness of the movement of the pull rod 800.

[0042] In the embodiment, the guide assembly 400 comprises a support seat 410 and a sliding block 420, the support seat 410 is in the shape of an I-beam, one end of the support seat 410 is detachably connected above the formwork 700 by bolts, the other end of the support seat 410 extends along the movement direction of the pull rod 800, and the support seat 410 is provided with a guide rail 430 extending along the length direction of the support seat 410 towards the side of the third connecting part 130; one side of the sliding block 420 is movably connected with the guide rail 430, and the other end of the sliding block 420 is detachably connected with the third connecting hole 131 by bolts. The design of the support seat 410 provides stable support for the movement of the sliding block 420 and the pull rod 800, and ensures that the pull rod 800 remains stable during movement. The cooperation of the sliding block 420 and the guide rail 430 not only ensures the smoothness of the pull rod 800 during pulling, but also improves the pulling accuracy of the pull rod 800.

[0043] In the embodiment, the fixed plate 500 is vertically arranged between the support seat 410 and the first driving structure 200 and the second driving structure 300, one end of the fixed plate 500 is detachably connected with the extended end of the support seat 410, and the other end of the fixed plate 500 is detachably connected with the first driving structure 200 and the second driving structure 300, respectively. By introducing the fixed plate 500, the first driving structure 200, the second driving structure 300 and the support seat 410 are connected together to form an integral structure. This design makes the connection between the components more firm, avoids loosening or displacement, and further ensures the stability and accuracy of the pull rod 800 during pulling. In addition, this design also ensures that they can work cooperatively during the pulling of the pull rod 800, providing uniform multi-point support, effectively preventing the pull rod 800 from tilting or deviating due to uneven stress during pulling, and further improving the stability and accuracy of the movement of the pull rod 800.

[0044] It should be noted that in the present application, the description of "first", "second", "one" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implying the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited. The terms "connection", "fixing" and the like should be understood broadly, for example, "fixing" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium; can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0045] In addition, the technical solutions of various embodiments of the present application can be combined with each other, but must be based on the fact that a person skilled in the art can realize it, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of such technical solutions does not exist, and is not within the protection scope required by the present application.

[0046] The specific embodiments described herein are merely illustrative of the present application. Those skilled in the art can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but without deviating from the spirit of the present application or exceeding the scope defined by the appended claims.

Claims

1. A tie rod pulling apparatus of an injection molding machine, which is assembled to an injection molding machine, the injection molding machine including a mold plate and a tie rod movably provided to the mold plate, characterized in that, The pull rod pulling device comprises: a connecting plate, which is detachably connected with the pull rod, is provided with a first connecting part, a second connecting part and a third connecting part, and the first connecting part, the second connecting part and the third connecting part form a triangular layout; a driving assembly, which comprises a first driving structure and a second driving structure detachably arranged on the template, the first driving structure is connected with the first connecting part, and the second driving structure is connected with the second connecting part; a guiding assembly, which is detachably arranged on the template and connected with the third connecting part; when the pull rod moves, the first driving structure, the second driving structure and the guiding assembly respectively support the pull rod.

2. A tie rod pulling apparatus for an injection molding machine as defined in claim 1 wherein, The connecting plate has a fixed part detachably connected with the pull rod, the first connecting part, the second connecting part and the third connecting part extend outward along the fixed part, the first connecting part is on the same horizontal line as the second connecting part, and there is a height difference between the first connecting part and the third connecting part.

3. The tie rod pulling apparatus of claim 2 wherein, The fixed part is provided with a plurality of first fixing holes penetrating through itself, the first fixing holes are arranged circumferentially along the fixed part, and the first fixing holes are detachably connected with the pull rod through a screw rod.

4. The tie rod pulling apparatus of claim 2 wherein, The diameter of the fixed part is greater than the diameter of the pull rod, and the fixed part is further provided with a plurality of second fixing holes penetrating through itself, and the second fixing holes are detachably connected with the template through bolts.

5. The tie rod pulling apparatus of claim 1 wherein, The first connecting part is provided with a plurality of first connecting holes penetrating through itself, the first connecting holes are detachably connected with the first driving structure through bolts, and the first driving structure comprises a first movable piece detachably connected with the first connecting holes.

6. The tie rod pulling apparatus of claim 5 wherein, The second connecting part is provided with a plurality of second connecting holes penetrating through itself, the second connecting holes are detachably connected with the second driving structure through bolts, and the second driving structure comprises a second movable piece detachably connected with the second connecting holes.

7. The tie rod pulling apparatus of claim 6 wherein, The first driving structure further comprises a first guide rod detachably connected with the template, the first movable piece is movably sleeved on the first guide rod, the second driving structure further comprises a second guide rod detachably connected with the template, the second movable piece is movably sleeved on the second guide rod, and the first connecting part and the second connecting part are respectively provided with through holes for the first guide rod and the second guide rod to pass through.

8. The tie rod pulling apparatus of claim 1 wherein, The third connecting part is provided with a plurality of third connecting holes penetrating through itself, the third connecting holes are detachably connected with the guiding assembly through bolts, and the guiding assembly comprises a sliding block detachably connected with the third connecting holes.

9. The tie rod pulling apparatus of claim 8 wherein, The guiding assembly further comprises a support seat detachably connected with the template, the support seat extends along the movement direction of the pull rod, and the support seat is provided with a guide rail toward the side of the third connecting part, and the guide rail is movably connected with the sliding block.

10. The tie rod pulling apparatus of claim 9, wherein, The guiding assembly further comprises a support seat detachably connected with the template, the support seat extends along the movement direction of the pull rod, and the support seat is provided with a guide rail toward the side of the third connecting part, and the guide rail is movably connected with the sliding block. The guiding assembly further comprises a support seat detachably connected with the template, the support seat extends along the movement direction of the pull rod, and the support seat is provided with a guide rail toward the side of the third connecting part, and the guide rail is movably connected with the sliding block. The guiding assembly further comprises a support seat detachably connected with the template, the support seat extends along the movement direction of the pull rod, and the support seat is provided with a guide rail toward the side of the third connecting part, and the guide rail is movably connected with the sliding block. The guiding assembly further comprises a support seat detachably connected with the template, the support seat extends along the movement direction of the pull rod, and the support seat is provided with a guide rail toward the side of the third connecting part, and the guide rail is movably connected with the sliding block.

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