Injection molding machine ejector device and injection molding machine

Abstract

The utility model provides an ejection device of an injection molding machine and an injection molding machine, comprising an ejection mechanism, a drive assembly, an output shaft and at least one group of transmission assemblies. Each group of transmission assemblies comprises a transmission wheel, a synchronous belt and a synchronous wheel, the first end of the output shaft is connected to the output end of the drive assembly, the transmission wheel is sleeved on the circumferential side wall of the output shaft, the synchronous wheel is installed on the movable mold plate of the injection molding machine, the synchronous belt is wound around the transmission wheel and the synchronous wheel, and extends radially along the output shaft. The transmission assembly also includes a synchronous connector, which is fixed to the synchronous belt, and the ejection mechanism is connected to the synchronous connector to follow the synchronous belt and move radially along the output shaft under the drive of the output shaft and the transmission wheel. The problem of high cost and limited scope of application in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the field of injection molding, in particular to an ejection device of an injection molding machine and an injection molding machine. Background Art

[0002] Injection molding machine (abbreviated as injection molding machine) is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting materials. When demolding, external force is required to drive the ejection mechanism to demold the part.

[0003] The prior art can use a motor to drive a lead screw nut to drive an ejection mechanism to achieve demoulding. However, such a structure is a rigid transmission, which has a large loss during use and a high maintenance cost. In addition, the rigid hard connection transmission method is only applicable to ordinary hard parts. When demoulding elastic or flexible parts (such as springs), it is easy to cause damage to the parts.

[0004] It can be seen that the ejector device of the injection molding machine in the prior art has the problems of high cost and limited application scope. Utility Model Content

[0005] The utility model provides an ejection device for an injection molding machine and an injection molding machine, which solve the problems of high cost and limited application scope in the prior art.

[0006] The utility model provides an ejection device for an injection molding machine, comprising an ejection mechanism, a drive assembly, an output shaft and at least one set of transmission assemblies;

[0007] Each transmission assembly includes a transmission wheel, a synchronous belt and a synchronous wheel. The first end of the output shaft is connected to the output end of the driving assembly. The transmission wheel is sleeved on the circumferential side wall of the output shaft. The synchronous wheel is installed on the moving plate of the injection molding machine. The synchronous belt is wound around the transmission wheel and the synchronous wheel and extends along the radial direction of the output shaft.

[0008] The transmission assembly also includes a synchronous connector, which is fixed to the synchronous belt. The ejection mechanism is connected to the synchronous connector to follow the synchronous belt and move radially along the output shaft under the drive of the output shaft and the transmission wheel.

[0009] The utility model converts the movement direction of the output shaft into a horizontal linear thrust through the arrangement of a transmission wheel, a synchronous belt, a synchronous wheel and a synchronous connecting piece, and pushes the ejection mechanism to realize the output and forward and backward movement of the ejection action. Since the relevant accessories (such as bearings and fixing nuts) required for a whole set of lead screw widths and lead screw nuts are saved, the production cost and maintenance cost of the injection molding machine can be greatly reduced. Furthermore, the soft transmission mode of the synchronous belt can make the ejection device of the injection molding machine suitable for elastic or flexible parts (such as springs), so that the ejection device of the injection molding machine of the utility model has a wider range of application.

[0010] Optionally, the synchronous connecting member includes a first connecting member, a second connecting member and a fixing member, the synchronous belt is clamped between the first connecting member and the second connecting member, and the fixing member is passed through the edges of the first connecting member and the second connecting member to fix the synchronous belt between the first connecting member and the second connecting member;

[0011] The side walls of the first connecting member and the second connecting member are fixed to the ejection mechanism.

[0012] By adopting the above structure, the synchronous belt and the ejection mechanism can be linked together, and the structure has high stability, the synchronous belt is not easy to fall off, and the synchronization is high.

[0013] Optionally, a side of the first connecting member facing the second connecting member and / or a side of the second connecting member facing the first connecting member has a first toothed groove, so as to further improve the clamping stability of the synchronous belt.

[0014] Optionally, a first meshing groove is provided on the surface of the synchronous belt facing the output shaft, and a second meshing groove is provided on the surface of the transmission wheel and the surface of the synchronous wheel, and the synchronous belt is meshed with the transmission wheel and the synchronous wheel through the first meshing groove and the second meshing groove. Such a structure can improve the assembly stability of the synchronous belt, the transmission wheel, and the synchronous wheel, improve the synchronization effect, avoid the synchronous belt from getting stuck during the transmission process, thereby improving the transmission efficiency and reducing the equipment failure rate.

[0015] Optionally, a connecting block is provided on one side of the ejection mechanism close to the output shaft, and the connecting block and the synchronous connecting piece are arranged side by side and fixed together along the axial direction of the output shaft. Such a structure can prevent interference with other components when the ejection mechanism is connected to the synchronous connecting piece.

[0016] Optionally, the ejection device of the injection molding machine further includes a mounting plate and a mounting plate fixing member, the mounting plate having a mounting hole, at least part of the driving assembly being mounted in the mounting hole, an adjustment hole being further provided on the mounting plate, the extension direction of the adjustment hole being consistent with the extension direction of the synchronous belt, the mounting plate fixing member being passed through the adjustment hole and one end of which is fixed to the movable platen of the injection molding machine, and the mounting plate can move relative to the output shaft through the adjustment hole under the action of an external force;

[0017] An adjusting screw is arranged on the edge of the mounting plate, and one end of the adjusting screw abuts against a movable template of the injection molding machine.

[0018] Through the above-mentioned structure, the embodiment of the utility model utilizes the adjusting screw, the adjusting hole and the mounting plate fixing member to enable the mounting plate to move along the extension direction of the synchronous belt (or which can be understood as the movement direction of the ejection mechanism), thereby being able to adjust the relative position of the output shaft and the synchronous belt without disassembling the output shaft and the transmission wheel, which helps to keep the synchronous belt in a tensioned state at all times and ensure transmission stability.

[0019] Optionally, the driving assembly includes a motor and a reducer, the output end of the motor is connected to the input end of the reducer, the output end of the reducer is connected to the first end of the output shaft, and the reducer is installed in the mounting hole.

[0020] Optionally, the ejection device of the injection molding machine further includes a shaft mounting seat and an elastic retaining ring, the shaft mounting seat is fixed to the movable mold plate of the injection molding machine, and the second end of the output shaft is mounted on the shaft mounting seat via the elastic retaining ring.

[0021] Optionally, there are multiple transmission components, and the multiple transmission components are arranged in parallel along the axial direction of the output shaft.

[0022] The utility model also provides an injection molding machine, comprising the ejection device of the injection molding machine involved in the above-mentioned embodiments and implementation modes. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the exploded structure of the ejection device of the injection molding machine and the injection molding movable template in one embodiment of the utility model;

[0024] Figure 2 for Figure 1 A magnified view of the local structure of the middle H region;

[0025] Figure 3 It is a three-dimensional structural schematic diagram of an injection molding machine ejector device and an injection molding machine dynamic template in one embodiment of the utility model;

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the ejection device of the injection molding machine in one embodiment of the utility model;

[0027] Figure 5 It is a schematic diagram of the top view of the ejection device of the injection molding machine in one embodiment of the utility model;

[0028] Figure 6 The ejector device of the injection molding machine in one embodiment of the utility model is along the Figure 5 Schematic diagram of the cross-sectional structure cut along the CC direction;

[0029] Figure 7 for Figure 6 A magnified view of the local structure of the E area in the middle;

[0030] Figure 8 The ejector device of the injection molding machine in one embodiment of the utility model is along the Figure 5 Schematic diagram of the cross-sectional structure cut along the DD direction.

[0031] Description of reference numerals:

[0032] 1: Ejector device of injection molding machine;

[0033] 10: output shaft; 101: bearing; 102: tension sleeve; 111: synchronous belt; 111': synchronous belt; 1110: first meshing groove; 112: transmission wheel; 112': transmission wheel; 1120: second meshing groove; 1121: tension sleeve; 1121': tension sleeve; 113: synchronous wheel; 113': synchronous wheel; 1130: second meshing groove; 1131: synchronous wheel mounting plate; 1131': synchronous wheel mounting plate; 1132: bearing; 1133: wheel axle;

[0034] 114: synchronous connecting member; 1140: first toothed groove; 1141: first connecting member; 1142: second connecting member; 1143: fixing member;

[0035] 12: driving assembly; 121: motor; 122: reducer; 123: connecting sleeve; 13: ejection mechanism; 131: connecting block;

[0036] 14: Mounting plate; 142: Adjustment hole; 143: Adjustment screw; 144: Mounting plate fixing piece;

[0037] 15: shaft mounting seat; 16: elastic retaining ring;

[0038] 2: Dynamic template. DETAILED DESCRIPTION

[0039] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and a specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0040] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0041] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0042] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0043] In the description of this embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0044] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0045] See also Figure 1 to Figure 4 , the utility model provides an ejector device 1 for an injection molding machine, comprising an ejector mechanism 13, including a drive assembly 12, an output shaft 10 and at least one set of transmission assemblies;

[0046] like Figure 1 , Figure 2 and Figure 4 As shown, each transmission assembly includes a transmission wheel 112, a synchronous belt 111 and a synchronous wheel 113. The first end of the output shaft 10 is connected to the output end of the drive assembly 12. The transmission wheel 112 is sleeved on the circumferential side wall of the output shaft 10. The synchronous wheel 113 is installed on the movable plate 2 of the injection molding machine (such as Figure 2 As shown in FIG. 1 , the synchronous belt 111 is wound around the transmission wheel 112 and the synchronous wheel 113 and extends in the radial direction of the output shaft 10. In one embodiment, the synchronous belt 111 extends in a horizontal direction perpendicular to the output shaft 10.

[0047] The transmission assembly also includes a synchronous connector 114 , which is fixed to the synchronous belt 111 . The ejection mechanism 13 is connected to the synchronous connector 114 to follow the synchronous belt 111 and move radially along the output shaft 10 under the drive of the output shaft 10 and the transmission wheel 112 .

[0048] The at least one transmission assembly mentioned above can be understood as the number of transmission assemblies can be one or more. In one embodiment, the number of transmission assemblies is two, and the two transmission assemblies are arranged in parallel along the axial direction of the output shaft 10. The components of the other transmission assembly are similar to those of the aforementioned transmission assembly, including a transmission wheel 112', a synchronous belt 111' and a synchronous wheel 113'. The connection relationship between the transmission assembly and the components is similar to that of the aforementioned transmission assembly, and will not be repeated here. In other alternative embodiments, the transmission assembly can also be three or four groups, etc.

[0049] The utility model converts the movement direction of the output shaft 10 into a horizontal linear thrust through the arrangement of a transmission wheel (such as a transmission wheel 112 and a transmission wheel 112'), a synchronous belt (such as a synchronous belt 111 and a synchronous belt 111'), a synchronous wheel (such as a synchronous wheel 113 and a synchronous wheel 113') and a synchronous connector 114, and pushes the ejection mechanism 13 to achieve the output and forward and backward movement of the ejection action. Since the relevant accessories (such as bearings and fixing nuts) required for a complete set of lead screw widths and lead screw nuts are saved, the production cost and maintenance cost of the injection molding machine can be greatly reduced. Furthermore, the soft transmission mode of the synchronous belt can make the ejection device 1 of the injection molding machine suitable for elastic or flexible parts (such as springs), so that the ejection device of the injection molding machine of the utility model has a wider range of application.

[0050] Specifically, the output shaft 10 is a rotating shaft body, which is inserted into the bearing 101 and can rotate therein, inserted into the connecting sleeve 123 and clamped by the tension sleeve 102 to rotate together with the connecting sleeve 123. A tension sleeve 1121 and a tension sleeve 1121' are provided between the transmission wheel (such as the transmission wheel 112 and the transmission wheel 112') and the output shaft 10, and the transmission wheel is clamped by the tension sleeve to rotate together with the output shaft. In other alternative embodiments, the tension sleeve may not be provided, for example, the output shaft 10 and the connecting sleeve 123 may be integrally formed. Furthermore, the synchronous belt 111 and the synchronous belt 111' may be a belt or a chain.

[0051] In one embodiment, if Figure 2 As shown, the synchronous connector 114 includes a first connector 1141, a second connector 1142 and a fixing member 1143, the synchronous belt 111' is sandwiched between the first connector 1141 and the second connector 1142, and the fixing member 1143 is passed through the edges of the first connector 1141 and the second connector 1142 to fix the synchronous belt 111' between the first connector 1141 and the second connector 1142. The side walls of the first connector 1141 and the second connector 1142 are fixed to the ejection mechanism 13. It can be understood by those skilled in the art that the number of synchronous connectors 114 matches the number of synchronous belts, and each synchronous belt is sandwiched in a synchronous connector 114. With such a structure, the synchronous belt can be linked with the ejection mechanism, and has high stability, the synchronous belt is not easy to fall off, and the synchronization is high.

[0052] Further, such as Figure 2As shown, the first connecting member 1141 has a first toothed groove 1140 on one side facing the second connecting member 1142, and / or the second connecting member 1142 has a first toothed groove 1140 on one side facing the first connecting member 1141, which further improves the clamping stability of the synchronous belt. It can be understood by those skilled in the art that the shape of the first toothed groove 1140 is not limited, for example, its cross-sectional shape can be, for example, a triangle, a rectangle, a trapezoid, an arc, etc.

[0053] For further information, see Figure 1 and Figure 4 It is understood that the synchronous belt (such as synchronous belt 111) is provided with a first meshing groove 1110 on one side surface facing the output shaft 10, and the surface of the transmission wheel (such as transmission wheel 112) and the surface of the synchronous wheel (such as synchronous wheel 113) are provided with a second meshing groove (such as second meshing groove 1120, second meshing groove 1130), and the synchronous belt 111 is meshed with the transmission wheel 112 and the synchronous wheel 113 through the first meshing groove 1110 and the second meshing groove (such as second meshing groove 1120 and second meshing groove 1130). Such a structure can improve the assembly stability of the synchronous belt and the transmission wheel and the synchronous wheel, improve the synchronization effect, avoid the synchronous belt from getting stuck during the transmission process, thereby improving the transmission efficiency and reducing the equipment failure rate. Among them, the shape of the meshing groove is not limited, and can be a rectangular groove, an arc groove, a V-shaped groove, a trapezoidal groove, etc.

[0054] For further information, see Figure 4 , and combined with Figure 1 It is understood that a connecting block 131 is provided on one side of the ejection mechanism 13 close to the output shaft 10, and the connecting block 131 and the synchronous connector 114 are arranged side by side along the axial direction of the output shaft 10 and fixed together. Such a structure can avoid interference with other components when the ejection mechanism 13 is connected to the synchronous connector 114. In one embodiment, there can be multiple connecting blocks 131, and the multiple connecting blocks 131 are respectively connected to the corresponding synchronous connectors. In other alternative embodiments, there can also be one connecting block 131, which is located on the inner side of the multiple synchronous connectors 114, and the outer side wall of the connecting block 131 is connected to the side wall of the synchronous connector 114. In an exemplary embodiment, the connecting block 131 is fixed to the ejection mechanism 13 by screws. The connecting block 131 and the synchronous connector 114 can be connected by screws or welded together.

[0055] For further information, see Figure 4 , and combined with Figure 1It is understood that the ejection device 1 of the injection molding machine also includes a mounting plate 14 and a mounting plate fixing member 144. The mounting plate has a mounting hole. At least part of the drive assembly (such as the reducer 122 mentioned later) is installed in the mounting hole. The mounting plate 14 is also provided with an adjustment hole 142. The extension direction of the adjustment hole 142 is consistent with the extension direction of the synchronous belt 111. The mounting plate fixing member 144 is penetrated through the adjustment hole 142 and one end thereof is fixed to the movable plate 2 of the injection molding machine. The mounting plate 14 can move relative to the output shaft 10 through the adjustment hole 142 under the action of external force. In one embodiment, the adjustment hole 142 is a waist-shaped hole. In other alternative methods, the adjustment hole 142 can also be other long strip holes.

[0056] An adjusting screw 143 is provided at the edge of the mounting plate 14, one end of which abuts against the movable plate 2 (such as Figure 3 As shown in FIG. 1 ), external force can be applied to the mounting plate by tightening or unscrewing the adjusting screw 143, thereby changing the relative position of the mounting plate 143 and the output shaft 10. In one embodiment, as Figure 4 As shown, the edge of the mounting plate 14 is provided with an extension portion, which is L-shaped and located at the top edge and the bottom edge of the mounting plate 14, and the adjustment screw 143 is provided on the extension portion. Such a structure can reduce the thickness of the mounting plate 14, reduce the production cost and facilitate the adjustment operation.

[0057] Through the above-mentioned structure, the embodiment of the utility model can make the mounting plate 14 move along the extension direction of the synchronous belt 111 (or can be understood as the movement direction of the ejection mechanism 13) by utilizing the adjusting screw 143, the adjusting hole 142 and the mounting plate fixing piece 144, so that the relative position of the output shaft 10 and the synchronous belt 111 can be adjusted without disassembling the output shaft 10 and the transmission wheel 112, which helps to keep the synchronous belt 111 in a tensioned state at all times, thereby ensuring the transmission stability.

[0058] In one embodiment, if Figure 1 and Figure 4 As shown, the drive assembly includes a motor 121 and a reducer 122, the output end of the motor 121 is connected to the input end of the reducer 122, specifically, the bottom of the motor 121 is fixed to the reducer 122 by screws, the output end of the reducer 122 is connected to the first end of the output shaft 10, the reducer 122 is installed in the mounting hole of the mounting plate 14, specifically, the reducer 122 is fixed to the mounting plate 14 by screws, and a connecting sleeve 123 is provided on the output end flange of the reducer 122, and the connecting sleeve 123 is fixed to the output end flange of the reducer 122 by screws.

[0059] In one implementation, see Figure 5 to Figure 7 , and refer to Figure 1It is understood that the ejection device 1 of the injection molding machine also includes a shaft mounting seat 15 and an elastic retaining ring 16. The shaft mounting seat 15 is fixed to the dynamic mold plate 2 of the injection molding machine, and the second end of the output shaft 10 is mounted on the shaft mounting seat 15 through the elastic retaining ring 16. By setting the shaft mounting seat 15, the output stability of the output shaft 10 can be improved, the shaft shaking can be avoided, and the noise and mechanical wear can be reduced. In an exemplary embodiment, the bearing 101 of the output shaft 10 is installed on the shaft mounting seat 15, and the output shaft 10 is passed through the bearing 101 and is limited and supported by the elastic retaining ring 16.

[0060] Further, in one implementation, see Figure 4 , Figure 5 and Figure 8 It is understood that the ejection device 1 of the injection molding machine also includes a synchronous wheel mounting plate (such as a synchronous wheel mounting plate 1131 and a synchronous wheel mounting plate 1131'). The synchronous wheel mounting plate 1131 is taken as an example for description below, and the structure of the synchronous wheel mounting plate 1131' is similar to it. The synchronous wheel mounting plate 1131 is L-shaped, and the long arm of the synchronous wheel mounting plate 1131 is fixed to the movable plate 2 by screws. In other alternative embodiments, it can also be fixed by other fixing methods, such as Figure 8 As shown, a bearing 1132 is provided on the synchronous wheel mounting plate 1131, and the synchronous wheel 113 is installed on the bearing 1132. The wheel axle 1133 of the synchronous wheel 113 is connected to the short arm of the synchronous wheel mounting plate 1131. In one embodiment, the synchronous wheel 113 is axially provided with an elastic retaining ring to limit the shaft to support the synchronous wheel 113.

[0061] An example working process is as follows:

[0062] The motor 121 outputs torque, and the speed reducer 122 is used to reduce speed and increase torque. The torque is transmitted to the output shaft 10 through the connecting sleeve 123 and the tension sleeve 102. The torque is transmitted to the transmission wheel 112 and the transmission wheel 112' through the tension sleeve 1121 and the tension sleeve 1121'. The torque is converted into horizontal force through the synchronous belt 111 and the synchronous belt 111'. The horizontal force is transmitted to the ejection mechanism 13 (such as the ejector plate assembly) of the required part through the connecting block 131 and the synchronous connecting member 114. The ejector plate assembly can be moved forward and backward by changing the forward and reverse rotation of the motor 121, the speed of the ejector plate assembly can be adjusted by changing the output speed of the motor, and the force of the ejector plate assembly can be adjusted by changing the output current of the motor 121. The guide rod of the ejector plate assembly itself is fixed to the movable template 2, and its ejector plate and ejector rod can reciprocate along the axial direction of the guide rod.

[0063] It can be understood by those skilled in the art that the tension sleeve mentioned in the above embodiment may also adopt a flat key or a spline in other alternative embodiments, and the bearing mentioned in the above embodiment may also adopt a graphite self-lubricating copper sleeve in other alternative embodiments, and the present invention does not limit this.

[0064] The utility model further provides an injection molding machine, including the injection molding machine ejection device 1 involved in the above-mentioned embodiments and possible implementation modes thereof.

[0065] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. An ejection device for an injection molding machine, comprising an ejection mechanism, characterized in that: It includes a drive assembly, an output shaft and at least one set of transmission assemblies; Each group of the transmission components includes a transmission wheel, a synchronous belt and a synchronous wheel, the first end of the output shaft is connected to the output end of the driving component, the transmission wheel is sleeved on the circumferential side wall of the output shaft, the synchronous wheel is installed on the moving plate of the injection molding machine, and the synchronous belt is wound around the transmission wheel and the synchronous wheel, and extends along the radial direction of the output shaft; The transmission assembly also includes a synchronous connecting member, which is fixed to the synchronous belt. The ejection mechanism is connected to the synchronous connecting member to follow the synchronous belt to move radially along the output shaft under the drive of the output shaft and the transmission wheel.

2. The ejector device of the injection molding machine according to claim 1, characterized in that: The synchronous connecting member includes a first connecting member, a second connecting member and a fixing member, the synchronous belt is clamped between the first connecting member and the second connecting member, and the fixing member is passed through the edges of the first connecting member and the second connecting member to fix the synchronous belt between the first connecting member and the second connecting member; The side walls of the first connecting member and the second connecting member are fixed to the ejection mechanism.

3. The ejector device of the injection molding machine according to claim 2, characterized in that: A side of the first connecting member facing the second connecting member and / or a side of the second connecting member facing the first connecting member has a first toothed groove.

4. The ejector device of the injection molding machine according to claim 1, characterized in that: The synchronous belt has a first meshing groove on one side surface facing the output shaft, and the surfaces of the transmission wheel and the synchronous wheel are both provided with second meshing grooves. The synchronous belt is meshed with the transmission wheel and the synchronous wheel through the first meshing groove and the second meshing groove.

5. The ejector device of the injection molding machine according to claim 1 or 2, characterized in that: A connecting block is provided on one side of the ejection mechanism close to the output shaft, and the connecting block and the synchronous connecting piece are arranged in parallel along the axial direction of the output shaft and fixed together.

6. The ejector device of the injection molding machine according to claim 1, characterized in that: It also includes a mounting plate and a mounting plate fixing member, wherein the mounting plate has a mounting hole, wherein at least a portion of the driving assembly is mounted in the mounting hole, and wherein an adjustment hole is further provided on the mounting plate, wherein the extension direction of the adjustment hole is consistent with the extension direction of the synchronous belt, wherein the mounting plate fixing member is passed through the adjustment hole and one end of the mounting plate fixing member is fixed to the movable plate of the injection molding machine, wherein the mounting plate can move relative to the output shaft through the adjustment hole under the action of an external force; An adjusting screw is arranged at the edge of the mounting plate, and one end of the adjusting screw abuts against the movable template of the injection molding machine.

7. The ejector device of the injection molding machine according to claim 6, characterized in that: The driving assembly includes a motor and a reducer, the output end of the motor is connected to the input end of the reducer, the output end of the reducer is connected to the first end of the output shaft, and the reducer is installed in the installation hole.

8. The ejector device of the injection molding machine according to claim 1, characterized in that: It also includes a shaft mounting seat and an elastic retaining ring. The shaft mounting seat is fixed to the movable mold plate of the injection molding machine, and the second end of the output shaft is mounted on the shaft mounting seat through the elastic retaining ring.

9. The ejector device of the injection molding machine according to claim 1, characterized in that: The number of the transmission components is multiple, and the multiple transmission components are arranged in parallel along the axial direction of the output shaft.

10. An injection molding machine, characterized in that: The invention comprises the ejection device of the injection molding machine as claimed in any one of claims 1 to 9.

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