Blocking structure of road cone injection machine

Abstract

The utility model discloses a material blocking structure of a road cone injection machine, which comprises a plug and a driving piece connected with the plug, the driving piece drives the plug to execute material blocking action, the plug is rotatably connected to the injection machine, the plug is further provided with a channel used for communicating a material channel of the injection machine with a discharge port, the driving piece drives the plug to rotate, and the channel is communicated with the discharge port of the injection machine. And the material channel and the discharge hole of the injection machine are rotationally communicated or cut off through the plug. According to the utility model, the material blocking mode can be optimized, and the material is prevented from being forced to be extruded out of the injection port to enter the mold or flow out during each material blocking.

Description

Technical Field

[0001] The utility model relates to an injection molding machine, in particular to a material blocking structure of a road cone injection molding machine. Background Art

[0002] During the molding process of plastic and rubber products, molds are usually combined with injection machines for processing. The injection machine is used to inject the molten raw materials into the mold, and the molded products are then taken out by demolding. The injection machine needs to block the material channel after each injection to avoid affecting the molding effect of the raw materials in the mold and to avoid the raw materials in the injection machine from flowing out and being wasted.

[0003] Conventional material channel plugging generally adopts a telescopic method, and cooperates with the plugging head on the telescopic rod to block the material channel. Referring to the utility model patent with publication number CN219522948U applied by the applicant, it can be seen from the drawings of the patent text that the current material plugging structure adopts a telescopic rod method for plugging. This solution will cause material extrusion during telescopic movement, forcing part of the material to be further squeezed into the mold, or causing the material to flow out from the injection port. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a blocking structure for a road cone injection machine, which can optimize the blocking method and avoid forcing the material to be squeezed out of the injection port into the mold or flow out each time the material is blocked.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a road cone injection machine blocking structure, comprising a plug and a driving member connected to the plug, the driving member drives the plug to perform the blocking action, the plug is rotatably connected to the injection machine, and the plug is also provided with a channel for connecting the material channel and the discharge port of the injection machine, the driving member drives the plug to rotate, and connects or cuts off the material channel and the discharge port of the injection machine through the rotation of the plug.

[0006] As a further improvement of the utility model, the plug is rotatably connected to the injection molding machine along its axial direction.

[0007] As a further improvement of the utility model, the axial direction of the plug is perpendicular to the axial direction of the material channel of the injection machine.

[0008] As a further improvement of the present invention, the plug has a connecting portion for connecting to a driving member, the connecting portion is a gear structure and meshes with the driving member, and the driving member drives the connecting portion to rotate to drive the plug to rotate.

[0009] As a further improvement of the utility model, the driving member includes an active member and a driven member, the active member is used to drive the driven member to telescopically move, and a rack is provided on the driven member along its telescopic movement direction, the driven member is engaged with the connecting part through the rack, and the connecting part is driven to rotate by the telescopic movement of the driven member.

[0010] As a further improvement of the utility model, the plug is also covered with a shaft sleeve, and the shaft sleeve is provided with through holes at both ends of the channel on the plug; the shaft sleeve is used for fixed connection with the injection machine, and the plug is rotatably connected to the shaft sleeve.

[0011] As a further improvement of the utility model, the sleeve includes a first sleeve and a second sleeve, the first sleeve is inserted into the injection machine and fixedly connected to the injection machine, and the second sleeve is tightened against the first sleeve; the connecting part and the plug are connected through a keyway to circumferentially fix the plug and the connecting part; a pressure plate and a bolt are also provided on the plug, the bolt is threadedly connected to the plug, and the pressure plate is located between the bolt and the connecting part, and the connecting part is axially pressed and fixed by the second sleeve and the pressure plate; a convex edge is provided on the side of the plug corresponding to one end of the first sleeve, and the convex edge is in abutment with the end face of the first sleeve.

[0012] The beneficial effect of the utility model is that the scheme of axial telescopic blocking of the material channel is changed to a rotational blocking scheme, which can avoid the problem in the prior art that the material needs to be moved in the direction of the material channel and the material will be forced to be squeezed out, thereby achieving better injection effect and better control effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The injection machine of the utility model;

[0014] Figure 2 It is a partial structural schematic diagram of the blocking mechanism of the injection machine of the utility model;

[0015] Figure 3 This is a schematic diagram of the cross-sectional structure of the plugging part of the utility model;

[0016] Figure 4 This is a schematic diagram of the main structure of the blocking part of the utility model;

[0017] Figure 5 for Figure 2 Enlarged schematic diagram of part A in the middle.

[0018] Figure numbers: 1. plug; 11. flange; 12. channel; 2. driving member; 21. active member; 22. driven member; 23. rack; 3. injection machine; 31. material channel; 32. discharge port; 4. connecting part; 51. first sleeve; 52. second sleeve; 6. pressure plate; 7. bolt. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0020] Reference Figure 1-5 As shown,

[0021] A blocking structure for a road cone injection machine comprises a plug 1 and a driving member 2 connected to the plug 1, wherein the driving member 2 drives the plug 1 to perform a blocking action, the plug 1 is rotatably connected to an injection machine 3, and the plug 1 is also provided with a channel 12 for connecting a material channel 31 and a material outlet 32 ​​of the injection machine 3. The driving member 2 drives the plug 1 to rotate, and connects or cuts off the material channel 31 and the material outlet 32 ​​of the injection machine 3 through the rotation of the plug 1.

[0022] When executing the blocking action, the present solution drives the plug 1 to rotate by the driving member 2, and utilizes the channel 12 on the plug 1 to form a misalignment during rotation, resulting in the inability of the discharge port 32 and the material channel 31 to communicate with each other, thereby achieving blocking. This kind of blocking will not be squeezed along the direction of material flow, thereby avoiding the problem of forcing the material to flow, allowing for better injection effect and better control effect.

[0023] In order to make the switching effect of the plug 1 more direct, the plug 1 is connected to the injection molding machine 3 along its axial rotation.

[0024] The rotation direction of the plug 1 is set along its circumferential rotation, which can make the driving more convenient. The channel 12 can be switched between the connected and disconnected states by only rotating the plug 1 circumferentially. The movement amplitude is small and the action efficiency is fast.

[0025] Specifically, preferably, the plug 1 has a connecting portion 4 for connecting to the driving member 2, the connecting portion 4 is a gear structure and meshes with the driving member 2, and the driving member 2 drives the connecting portion 4 to rotate, thereby driving the plug 1 to rotate.

[0026] The solution for the driving member 2 to drive the plug 1 to rotate can be to drive the plug 1 to rotate in a manner of cooperating with a motor and a reduction gear set.

[0027] It can also be implemented by using a push rod to extend and retract, and using the rack 23 on the push rod to drive the plug 1 to rotate.

[0028] The specific structure implemented as a telescoping method is as follows:

[0029] The driving member 2 includes an active member 21 and a driven member 22, wherein the active member 21 is used to drive the driven member 22 to telescopically move, and a rack 23 is provided on the driven member 22 along its telescopic movement direction. The driven member 22 is meshed with the connecting part 4 through the rack 23, and the connecting part 4 is driven to rotate by the telescopic movement of the driven member 22.

[0030] The active member 21 can be a motor, and the driven member 22 is a telescopic rod. The driven member 22 and the active member 21 cooperate to form an electric push rod, and a rack 23 is provided on the driven member 22, which can engage with the connecting part 4. As the driven member 22 moves in a telescopic manner, the connecting part 4 is driven to rotate, and then the channel 12 is rotated to achieve dislocation and blockage.

[0031] The axial direction of the plug 1 may be perpendicular to the axial direction of the material channel 31 , or may be at a certain angle thereto. Preferably, the axial direction of the plug 1 is perpendicular to the axial direction of the material channel 31 of the injection machine 3 .

[0032] The extension direction of the material channel 31 is generally the same as the extension direction of the injection machine 3. As long as the axial direction of the plug 1 is perpendicular to the axial direction of the material channel 31, and the follower 22 is a telescopic rod, it needs to be driven vertically with the plug 1. Therefore, the electric push rod composed of the active part 21 and the driven part 22 can also be set along the extension direction of the injection machine 3, which can unify the extension direction of the structure and optimize the occupied space.

[0033] In order to facilitate the installation of the plug 1, a shaft sleeve is provided outside the plug 1, and the shaft sleeve is provided with through holes at both ends of the channel 12 on the plug 1; the shaft sleeve is used for fixed connection with the injection machine 3, and the plug 1 is rotatably connected to the shaft sleeve.

[0034] The arrangement of the shaft sleeve can facilitate the installation of the plug 1, otherwise the plug 1 directly installed on the injection machine 3 will affect the rotation effect. The plug 1 is installed on the injection machine 3 using the shaft sleeve, which can maintain the rotation effect of the plug 1.

[0035] More specifically, the sleeve includes a first sleeve 51 and a second sleeve 52, the first sleeve 51 is inserted into the injection machine 3 and fixedly connected to the injection machine 3, and the second sleeve 52 is pressed against the first sleeve 51; the connecting part 4 is connected to the plug 1 by a keyway to circumferentially fix the plug 1 and the connecting part 4; a pressure plate 6 and a bolt 7 are also provided on the plug 1, the bolt 7 is threadedly connected to the plug 1, and the pressure plate 6 is located between the bolt 7 and the connecting part 4, and the connecting part 4 is axially pressed and fixed by the second sleeve 52 and the pressure plate 6; a convex edge 11 is provided on the side of the plug 1 corresponding to one end of the first sleeve 51, and the convex edge 11 is in contact with the end face of the first sleeve 51.

[0036] Reference Figure 3As shown in the figure, the first sleeve 51 is fixedly connected to the injection machine 3, and the plug 1 can pass through. After the plug 1 passes through the first sleeve 51, it extends out and is covered with the second sleeve 52. At this time, the second sleeve 52 abuts against the first sleeve 51, and the connecting part 4 of the gear structure is turned, and then the pressure plate 6 is installed, and finally the bolt 7 is screwed into the plug 1. As the bolt 7 is tightened, the pressure plate 6 will squeeze the connecting part 4, and at the same time, cooperate with the second sleeve 52 to press the connecting part 4. Since the connecting part 4 and the plug 1 are circumferentially fixed by the keyway, there is no circumferential rotation between the connecting part 4 and the plug 1. The keyway is preferably as shown in the figure, the groove is located on the plug 1, and there is space for the key to move. The end of the plug 1 corresponding to the first sleeve 51 abuts against the end face of the first sleeve 51 through the convex edge 11, which can form a positioning effect and a force support effect. The positioning effect can make it easier to align the channel 12 on the plug 1 with the material channel 31, and no additional components are needed for adjustment.

[0037] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A blocking structure for a road cone injection machine, comprising a blocking head and a driving member connected to the blocking head, wherein the driving member drives the blocking head to perform a blocking action, and is characterized in that: The plug is rotatably connected to the injection machine, and a channel for connecting the material channel and the discharge port of the injection machine is also provided on the plug. The driving member drives the plug to rotate, and connects or cuts off the material channel and the discharge port of the injection machine through the rotation of the plug.

2. The blocking structure of the road cone injection machine according to claim 1, characterized in that: The plug is rotatably connected to the injection machine along its axial direction.

3. The blocking structure of the road cone injection machine according to claim 2, characterized in that: The axial direction of the plug is perpendicular to the axial direction of the material channel of the injection machine.

4. The blocking structure of the road cone injection machine according to claim 1, characterized in that: The plug has a connecting portion for connecting to a driving member, the connecting portion is a gear structure and meshes with the driving member, and the driving member drives the connecting portion to rotate to drive the plug to rotate.

5. The blocking structure of the road cone injection machine according to claim 4, characterized in that: The driving member includes an active member and a driven member, the active member is used to drive the driven member to telescopically move, and a rack is provided on the driven member along its telescopic movement direction. The driven member is meshed with the connecting part through the rack, and the connecting part is driven to rotate by the telescopic movement of the driven member.

6. The blocking structure of the road cone injection machine according to claim 5, characterized in that: The plug is also covered with a shaft sleeve, and the shaft sleeve is provided with through holes at both ends of the passage on the plug; the shaft sleeve is used for fixed connection with the injection machine, and the plug is rotatably connected with the shaft sleeve.

7. The blocking structure of the road cone injection machine according to claim 6, characterized in that: The sleeve includes a first sleeve and a second sleeve, the first sleeve is inserted into the injection machine and fixedly connected to the injection machine, and the second sleeve is pressed against the first sleeve; the connecting part and the plug are connected by a keyway to circumferentially fix the plug and the connecting part; a pressure plate and a bolt are also provided on the plug, the bolt is threadedly connected to the plug, and the pressure plate is located between the bolt and the connecting part, and the connecting part is axially pressed and fixed by the second sleeve and the pressure plate; a convex edge is provided on the side of the plug corresponding to one end of the first sleeve, and the convex edge abuts against the end face of the first sleeve.

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