Pull rod device of injection molding machine

Abstract

The utility model discloses an injection molding machine pull rod device which comprises a pull rod body, a template, a locking assembly, a shielding cover and a fixing piece, the template is arranged at one end of the pull rod body, the locking assembly is arranged at one end of the pull rod body, the shielding cover is arranged outside the locking assembly, and the fixing piece is arranged inside the shielding cover. The design of the pull rod body, the locking assembly, the shielding cover and the fixing piece is utilized, the installation cover is arranged at one end of the pull rod body in a sleeved mode, then the locking block is inserted into the inserting groove, and therefore locking between the pull rod body and the installation cover is formed, the shielding cover is arranged outside the installation cover in a sleeved mode, and finally the fixing piece is fixed through the fixing bolt. According to the pull rod, the shielding cover and the formwork are fixed, so that fixed installation between the pull rod body and the formwork is completed, through clamping installation of the locking block, the strength of the locking block is higher than that of threads, meanwhile, stress of the locking block can be more uniform, and therefore the pull rod body is protected.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding machine equipment technical field especially relates to a kind of injection molding machine pull rod device. BACKGROUND

[0002] Injection molding machine pull rod is also called locking piston rod, and column, which is a component assembly for guiding movable die plate and locking it with fixed die plate. During the operation of injection molding machine, movable die plate is moved by the power provided by injection molding machine pull rod, so as to close and open mold. It plays an important role in the process of injection molding.

[0003] The existing injection molding machine pull rod is generally fixed by cooperating pull rod with nut, tightening nut, and then pressing nut with pressing plate to fix pull rod on fixed die plate. However, the external thread of pull rod and the internal thread of nut are prone to thread defects and stress concentration. After thread cooperation, thread cooperation gap is formed, which causes uneven stress of each thread and damage of thread, resulting in fatigue and fracture of pull rod. SUMMARY

[0004] The utility model aims at providing a kind of injection molding machine pull rod device to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of injection molding machine pull rod device, comprising:

[0006] Pull rod body;

[0007] Die plate, which is arranged at one end of pull rod body;

[0008] Locking assembly, which is arranged at one end of pull rod body;

[0009] Cover, which is arranged outside locking assembly;

[0010] Fixing part, which is arranged inside cover, is used for fixed installation of die plate and cover.

[0011] Preferably, one side of the die plate is provided with a circular groove for inserting the pull rod body.

[0012] Preferably, the locking assembly comprises:

[0013] Locking block, which is arranged at one end of pull rod body;

[0014] Mounting cover, which is arranged outside one end of pull rod body, is provided with a hole for inserting locking block.

[0015] Preferably, the top end and the bottom end of the locking block are both arc-shaped.

[0016] Preferably, one end of the pull rod rod body is provided with a slot for inserting the locking block.

[0017] Preferably, one side of the cover is provided with a threaded groove, one side of the template is provided with a threaded hole, and one end of the cover is provided with a plug-in slot for inserting the pull rod rod body.

[0018] Preferably, the fixing member comprises:

[0019] A fixing bolt is threadedly connected with the threaded groove, and one end of the fixing bolt is threadedly connected with the threaded hole.

[0020] The technical effects and advantages of the utility model are as follows:

[0021] The utility model discloses a pull rod rod body, locking assembly, cover and fixing member design, through the installation cover of pull rod rod body one end, then the locking block is inserted into the inside of the slot, to form the locking between pull rod rod body and installation cover, again, the cover is set in the outside of installation cover, finally through fixing bolt, the cover is fixed with template, to complete the fixed installation between pull rod rod body and template, through the clamping installation of locking block, the strength of locking block is higher than the screw, and the stress of locking block can be more uniform, thereby the protection of pull rod rod body is played. DRAWINGS

[0022] Figure 1 It is the three-dimensional structure schematic view of the utility model pull rod and template.

[0023] Figure 2 It is the three-dimensional structure schematic view of the utility model pull rod and template.

[0024] Figure 3 It is the three-dimensional structure schematic view of the utility model pull rod and locking assembly.

[0025] Figure 4 It is the three-dimensional structure schematic view of the utility model pull rod.

[0026] Figure 5 It is the three-dimensional structure schematic view of the utility model locking block.

[0027] Figure 6 It is the three-dimensional structure schematic view of the utility model cover.

[0028] In the drawing: 1, pull rod rod body, 2, template, 3, cover, 4, slot, 5, locking block, 6, installation cover, 7, plug-in slot, 8, threaded groove, 9, fixing bolt, 10, threaded hole. CONCRETE IMPLEMENTATION

[0029] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the utility model.

[0030] In one embodiment, the utility model provides a kind of injection molding machine pull rod device as shown in Figures 1-6 It includes:

[0031] Pull rod body 1;

[0032] Template 2, template 2 is arranged at one end of pull rod body 1;

[0033] Locking assembly, locking assembly is arranged at one end of pull rod body 1;

[0034] Cover 3, cover 3 is arranged at the outside of locking assembly;

[0035] Fixing piece, fixing piece is arranged at the inside of cover 3, and fixing piece is used for the fixed installation of template 2 and cover 3.

[0036] One side of template 2 is provided with circular groove for inserting pull rod body 1.

[0037] Further, pull rod body 1 is the pull rod of existing injection molding machine, template 2 is the fixed template of existing injection molding machine clamping mechanism, pull rod body 1 is provided with multiple at the position of template 2, and the number and position of circular groove are respectively corresponding with the number and position of pull rod body 1, the number and position of locking assembly are respectively corresponding with pull rod body 1, the number of cover 3 is corresponding with the number of locking assembly, and the diameter of pull rod body 1 is corresponding with the diameter of circular groove.

[0038] Locking assembly includes:

[0039] Locking block 5, locking block 5 is arranged at one end of pull rod body 1;

[0040] Mounting cover 6, mounting cover 6 is sleeved on the outer wall of one end of pull rod body 1, and the outer wall of mounting cover 6 is provided with insertion hole for inserting locking block 5.

[0041] The top end and the bottom end of locking block 5 are both arc-shaped.

[0042] One end of pull rod body 1 is provided with insertion slot 4 for inserting locking block 5.

[0043] One side of cover 3 is provided with threaded groove 8, one side of template 2 is provided with threaded hole 10, and one end of cover 3 is provided with insertion slot 7 for inserting pull rod body 1.

[0044] Further, the diameter of the mounting cover 6 is 1.3 times the diameter of the circular groove, the end of the pull rod body 1 is provided with a plurality of insertion grooves 4, the vertical section of the insertion groove 4 is a circular ring, the number of the locking blocks 5 is twice the number of the insertion grooves 4, the plurality of locking blocks 5 are symmetrically arranged at the top and bottom of the plurality of insertion grooves 4, the number and position of the insertion holes of the mounting cover 6 correspond to the number and position of the locking blocks 5, the arc radian of the locking block 5 away from the end of the pull rod body 1 corresponds to the radian of the mounting cover 6, the arc radian of the locking block 5 close to the end of the pull rod body 1 corresponds to the radian of the insertion groove 4, the locking block 5 is attached to the insertion groove 4 and flush with the outer wall of the mounting cover 6, the locking block 5 is inserted into the insertion hole of the mounting cover 6 and the insertion groove 4 at the same time, the mounting cover 6 and the pull rod body 1 are fixedly installed, the diameter of the insertion groove 7 corresponds to the diameter of the mounting cover 6, the covering cover 3 is sleeved on the outer wall of the mounting cover 6 to prevent the locking block 5 from sliding out of the insertion hole, so as to ensure the locking and limiting effect of the locking block 5 on the pull rod body 1, a plurality of threaded grooves 8 are arranged at equal intervals in a ring shape, the threaded groove 8 penetrates the covering cover 3, the threaded hole 10 does not penetrate the formwork 2, the threads on the inner wall of the threaded hole 10 and the threads on the outer wall of the fixing bolt 9 are engaged with each other, the locking block 5 locks the pull rod body 1, the stable connection between the pull rod body 1 and the formwork 2 is realized, the block structure of the locking block 5 has higher strength than the screw thread, and the stress on the pull rod body 1 and the locking block 5 is more uniform, so that the breakage of the pull rod body 1 is avoided.

[0045] In the embodiment two, the utility model provides a fixing piece, which is applied to the pull rod device in the embodiment one, and the fixing piece comprises:

[0046] The fixing bolt 9 is threadedly connected with the threaded groove 8, and one end of the fixing bolt 9 is threadedly connected with the threaded hole 10.

[0047] Further, the threads on the inner wall of the threaded groove 8 and the threads on the outer wall of the fixing bolt 9 are engaged with each other, the number and position of the threaded hole 10 correspond to the number and position of the threaded groove 8, the threads on the inner wall of the threaded hole 10 and the threads on the outer wall of the fixing bolt 9 are engaged with each other, and the covering cover 3 and the formwork 2 are fixedly installed by threadedly inserting the fixing bolt 9 into the threaded groove 8 and the threaded hole 10.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or replace some technical features with equivalent ones, as long as the modifications, equivalent replacements, improvements, etc. are within the spirit and principles of the utility model.

Claims

1. An injection molding machine tie rod apparatus, characterized by, Include: Pull rod rod body (1); Template (2), the template (2) is arranged at one end of the pull rod rod body (1); Locking assembly, the locking assembly is arranged at one end of the pull rod rod body (1); Covering cover (3), the covering cover (3) is arranged outside the locking assembly; Fixing piece, the fixing piece is arranged inside the covering cover (3), and the fixing piece is used for fixed installation of the template (2) and the covering cover (3).

2. An injection molding machine tie rod assembly as claimed in claim 1 wherein, One side of the template (2) is provided with a circular groove for inserting the pull rod rod body (1).

3. An injection molding machine tie rod assembly as claimed in claim 1 wherein, The locking assembly comprises: Locking block (5), the locking block (5) is arranged at one end of the pull rod rod body (1); Mounting cover (6), the mounting cover (6) is sleeved on the outer wall of one end of the pull rod rod body (1), and the outer wall of the mounting cover (6) is provided with a insertion hole for inserting the locking block (5).

4. An injection molding machine tie rod assembly as claimed in claim 3 wherein, The top end and the bottom end of the locking block (5) are respectively circular arc.

5. An injection molding machine tie rod assembly as claimed in claim 3 wherein, One end of the pull rod rod body (1) is provided with an insertion slot (4) for inserting the locking block (5).

6. An injection molding machine tie rod assembly as described in claim 1 wherein, One side of the covering cover (3) is provided with a threaded groove (8), one side of the template (2) is provided with a threaded hole (10), and one end of the covering cover (3) is provided with an insertion slot (7) for inserting the pull rod rod body (1).

7. An injection molding machine tie rod assembly as claimed in claim 6 wherein, The fixing piece comprises: Fixing bolt (9), the fixing bolt (9) is threadedly connected with the threaded groove (8), and one end of the fixing bolt (9) is threadedly connected with the threaded hole (10).

Images