A moving device for a shooting table of a two-color injection molding machine

Abstract

The utility model relates to two -color injection technology field provides a mobile device for two -color injection molding machine injection platform, include: support, injection platform connects on the support, mobile subassembly has first support seat and second support seat, support sliding connection is in first support seat, first support seat sliding connection is in second support seat, and the moving direction of support relative to first support seat and the moving direction of first support seat relative to second support seat are perpendicular to each other, through two -stage orthogonal sliding structure that support, first support seat and second support seat of mobile subassembly are formed, make injection platform have two independent adjustment degrees in horizontal plane, can be used for respectively realizing front -back and left -right centering adjustment. Compared with the traditional structure that only supports one -way adjustment, need not to dismount support or readjust complete machine, can complete injection platform injection nozzle and mould sprue accurate alignment, has improved adjustment convenience, equipment adaptability and production efficiency significantly.

Description

Technical Field

[0001] This utility model belongs to the field of two-color injection molding technology, specifically relating to a moving device for the injection stage of a two-color injection molding machine. Background Technology

[0002] In two-color injection molding, the injection unit, as one of the key components of the injection molding machine, is responsible for injecting molten plastic raw materials into the mold cavity at a certain pressure and speed. To meet the needs of two-color or multi-material injection molding, the injection unit usually needs to be able to accurately switch positions between multiple injection units or align between different mold cavities during operation. Therefore, higher requirements are placed on the positioning accuracy and movement flexibility of the injection unit.

[0003] Currently, most conventional injection molding machine nozzles are directly mounted on the injection molding machine body via fixed brackets. The nozzle can only perform linear reciprocating motion in a single horizontal direction (usually the front-to-back direction) to move closer to or away from the mold. While this structure is simple and low-cost, it has significant limitations in two-color injection molding applications: when it is necessary to adjust the alignment of the nozzle and the mold gate, if there are installation errors or misalignments caused by thermal expansion, correction can only be achieved by adjusting the entire injection molding machine or disassembling and reassembling the bracket. This operation is cumbersome and time-consuming, making it difficult to achieve quick and precise fine-tuning.

[0004] Furthermore, in actual production, due to the complex mold structure or the requirement for non-coaxial switching of the injection unit between different stations in two-color injection molding processes, traditional injection units that only support unidirectional movement cannot meet the needs of multi-dimensional position adjustment, thus limiting the adaptability and production efficiency of the equipment. Utility Model Content

[0005] To address the aforementioned shortcomings of existing technologies, the technical problem this invention aims to solve is to propose a moving device for a two-color injection molding machine's injection unit. Through a two-stage orthogonal sliding structure consisting of a bracket, a first support base, and a second support base in the moving assembly, the injection unit possesses two independent degrees of freedom for adjustment in the horizontal plane, which can be used to achieve forward / backward movement and left / right centering adjustment, respectively. Compared to traditional structures that only support unidirectional adjustment, precise alignment of the injection nozzle and the mold gate can be achieved without disassembling the bracket or readjusting the entire machine, significantly improving adjustment convenience, equipment adaptability, and production efficiency.

[0006] The technical solution adopted by this utility model to solve its technical problem is to propose a moving device for the injection table of a two-color injection molding machine, comprising:

[0007] The support frame and the firing platform are connected to the support frame.

[0008] A movable component having a first support and a second support, the bracket being slidably connected to the first support, the first support being slidably connected to the second support, and the direction of movement of the bracket relative to the first support being perpendicular to the direction of movement of the first support relative to the second support.

[0009] When the bracket moves along the first support base, and the first support base moves along the second support base, it drives the firing platform to move in two mutually perpendicular linear directions.

[0010] In the aforementioned moving device for a two-color injection molding machine injection station, a first slide rail is provided on the first support base, a first slider is provided at the bottom of the bracket, and the bracket is slidably connected to the first slide rail via the first slider.

[0011] In the aforementioned moving device for a two-color injection molding machine injection station, a second slide rail is provided on the second support base, and a second slider is connected to the bottom of the first support base. The first support base is slidably connected to the second slide rail via the second slider.

[0012] In the aforementioned moving device for a two-color injection molding machine injection station, the moving component further includes a driving member, the output end of which is connected to the bracket and used to drive the bracket to move relative to the first support base.

[0013] In the aforementioned moving device for a two-color injection molding machine injection unit, the moving component further includes a lead screw and an adjusting block. The adjusting block is connected to the bottom of the first support base and has a through threaded hole inside. The lead screw passes through the threaded hole and is threadedly engaged with the adjusting block. When the lead screw rotates, it drives the first support base to move relative to the second support base.

[0014] In the aforementioned moving device for a two-color injection molding machine injection table, one end of the lead screw is also provided with an operating wheel, which is used to manually drive the lead screw to rotate.

[0015] The aforementioned moving device for a two-color injection molding machine stage further includes a connecting assembly, through which the driving component is connected to the two-color injection molding machine.

[0016] In the aforementioned moving device for a two-color injection molding machine injection station, the connecting assembly includes a connecting block and a third slide rail. The driving component is connected to the connecting block, the third slide rail is fixed to the two-color injection molding machine, and the connecting block is adjustablely connected to the third slide rail and fixed to the third slide rail after adjustment by locking bolts.

[0017] In the aforementioned moving device for a two-color injection molding machine injection station, the connecting block has an installation cavity, and the two ends of the shaft pin are respectively fixedly connected to the opposite side walls of the installation cavity.

[0018] In the aforementioned moving device for a two-color injection molding machine injection stage, a spherical bearing is also provided at the center of the shaft pin. The spherical bearing has a threaded hole, and the end of the driving member away from the bracket is threadedly connected to the threaded hole.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] (1) Through the two-stage orthogonal sliding structure composed of the bracket, the first support base and the second support base in the moving component, the injection station has two independent degrees of freedom in the horizontal plane, which can be used to realize forward and backward movement and left and right centering adjustment respectively. Compared with the traditional structure that only supports unidirectional adjustment, the precise alignment of the injection station nozzle and the mold gate can be completed without disassembling the bracket or readjusting the whole machine, which significantly improves the convenience of adjustment, equipment adaptability and production efficiency.

[0021] (2) The screw-driven mechanism, consisting of a lead screw and an adjusting block, and equipped with a manual operating wheel, allows for precise fine-tuning of the lateral position of the injection unit without an external power source. This is particularly suitable for applications requiring frequent calibration, such as mold changes and initial alignment. Due to the excellent self-locking properties of the screw pair, the position remains reliably unchanged after adjustment, effectively preventing accidental slippage caused by vibration or load fluctuations and improving operational safety. This structure is simple, reliable, and easy to operate, significantly reducing debugging difficulty and maintenance costs.

[0022] (3) This utility model designs the driving component as a follower structure that can slide along the third slide rail via the connecting block, and fixes it with locking bolts after adjustment. Combined with the hinged connection of the spherical bearing, it achieves both axial fixation and allows for a certain degree of angular swing compensation. This design effectively solves the connection interference problem caused by the fixed driving component and the moving bracket in the traditional structure. When manually adjusting the position of the firing table, the driving component can be moved as a whole, avoiding additional bending moment, stress concentration or jamming, which significantly improves the reliability and service life of the connection structure, and is especially suitable for high-precision production scenarios that require frequent alignment. Attached Figure Description

[0023] Figure 1 This is a 3D view of the proposed solution.

[0024] Figure 2 yes Figure 1 A 3D view of the hidden part of the structure.

[0025] Figure 3 yes Figure 2 A 3D view of the hidden part of the structure.

[0026] Figure 4 This is a 3D view of the connecting components in this solution.

[0027] In the figure, 100 is the bracket; 110 is the first slider; 200 is the moving component; 210 is the first support; 211 is the first slide rail; 212 is the second slider; 220 is the second support; 221 is the second slide rail; 230 is the driving component; 240 is the lead screw; 241 is the operating wheel; 250 is the adjusting block; 300 is the connecting component; 310 is the connecting block; 311 is the shaft pin; 312 is the spherical bearing; and 320 is the third slide rail. Detailed Implementation

[0028] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0029] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0030] like Figure 1 As shown, although the moving device in this solution is mainly applicable to two-color injection molding machines, it is not limited to this and can also be applied to single-color injection molding machines that require fine adjustment of the injection stage position.

[0031] like Figures 1 to 4 As shown, this solution provides a moving device for a two-color injection molding machine injection stage, comprising: a bracket 100, the injection stage being connected to the bracket 100; and a moving assembly 200 having a first support base 210 and a second support base 220, wherein the bracket 100 is slidably connected to the first support base 210, the first support base 210 is slidably connected to the second support base 220, and the moving direction of the bracket 100 relative to the first support base 210 is perpendicular to the moving direction of the first support base 210 relative to the second support base 220.

[0032] By independently or collaboratively adjusting the displacement of the bracket 100 relative to the first support 210, and the displacement of the first support 210 relative to the second support 220, precise position adjustment of the injection station in two orthogonal directions within the horizontal plane can be achieved. Specifically, the movement of the bracket 100 relative to the first support 210 corresponds to translation in one direction, which can be used to move the injection station forward and backward to approach or move away from the mold; the movement of the first support 210 relative to the second support 220 corresponds to translation in the other orthogonal direction, which can be used to correct positional deviations of the injection station in the left and right directions, achieving precise alignment between the nozzle and the mold gate.

[0033] Compared to the traditional bracket 100 structure that only supports unidirectional movement, the moving device in this solution significantly improves the spatial positioning freedom of the injection station in the horizontal direction. When the nozzle and mold gate misalign due to installation errors, thermal deformation, or mold replacement, there is no need to adjust the entire machine or disassemble and reassemble the bracket 100. The moving device alone can achieve quick and convenient fine-tuning, improving the adaptability and production efficiency of the equipment.

[0034] In summary, the moving device in this solution, by constructing a two-stage orthogonal sliding structure, enables the injection stage to have flexible adjustment capabilities in a two-dimensional plane, making it particularly suitable for high-precision molding applications such as switching between multiple injection units and aligning complex molds in two-color injection molding machines.

[0035] In a two-color injection molding machine, there are usually two injection stations, each used to supply molten plastic of different colors or materials. This moving device can be independently configured under each injection station, forming two independent adjustment units, so that both injection stations can be finely adjusted in a two-dimensional plane without interfering with each other's adjustment process.

[0036] In order to allow the bracket 100 to slide on the first support base 210, the first support base 210 is provided with a first slide rail 211, and the bottom of the bracket 100 is provided with a first slider 110. The bracket 100 is slidably connected to the first slide rail 211 through the first slider 110.

[0037] To allow the first support 210 to slide on the second support 220, a second slide rail 221 is provided on the second support 220. A second slider 212 is connected to the bottom of the first support 210, and the first support 210 is slidably connected to the second slide rail 221 via the second slider 212.

[0038] The cooperation between the first slide rail 211 and the first slider 110 provides high-precision linear guidance for the movement of the bracket 100 along the first support seat 210, effectively limiting the degree of freedom of the bracket 100 in the direction perpendicular to the movement, avoiding off-center loading or swaying, and ensuring that the nozzle maintains good coaxiality during the forward and backward movement.

[0039] Similarly, the cooperation between the second slide rail 221 and the second slider 212 provides an independent and stable guiding support for the movement of the first support 210 relative to the second support 220, ensuring smoothness and repeatability during left and right adjustments. The two sliding pairs are independently set at different support levels, with a clear structure and a well-defined force transmission path, which improves the rigidity and load-bearing capacity of the overall device while avoiding motion interference.

[0040] In summary, by setting up a double-layer orthogonal sliding guide structure with the first slide rail 211 and the first slider 110, and the second slide rail 221 and the second slider 212, the position adjustment accuracy and motion stability of the injection station in the horizontal plane are significantly improved, and the structural reliability and engineering practicality of the device are enhanced, providing a strong guarantee for achieving rapid and accurate alignment between the nozzle and the mold gate.

[0041] To drive the bracket 100 to move relative to the first support base 210, the moving assembly 200 further includes a drive element 230. The output end of the drive element 230 is connected to the bracket 100 and is used to drive the bracket 100 to move along the first slide rail 211 on the first support base 210. The drive element 230 can be a motor, a hydraulic cylinder, or a pneumatic cylinder.

[0042] In order to drive the first support 210 to move relative to the second support 220, the moving assembly 200 also includes a lead screw 240. The bottom of the first support 210 is provided with an adjusting block 250, and the adjusting block 250 is provided with a through threaded hole. The lead screw 240 passes through the threaded hole and forms a helical pair with the adjusting block 250. The axial position of the lead screw 240 is fixed.

[0043] More preferably, one end of the lead screw 240 is provided with an operating wheel 241, which allows the operator to manually apply force to rotate the lead screw 240.

[0044] When it is necessary to correct the positional deviation of the injection station in the left and right directions and achieve precise alignment between the nozzle and the mold gate, the screw 240 can be rotated by rotating the operating wheel 241. Since the screw 240 is axially fixed, its rotational motion drives the adjusting block 250 to move linearly along the axial direction of the screw 240 through the threaded transmission, thereby driving the first support seat 210, which is fixedly connected to it, to slide along the second slide rail 221, so as to achieve precise position adjustment of the injection station.

[0045] The transmission method employing a threaded engagement between the lead screw 240 and the adjusting block 250 achieves precise displacement control of the movement of the first support 210 relative to the second support 220. Due to the advantages of threaded transmission, such as smooth transmission, strong self-locking, and high resolution, the first support 210 can be effectively kept in a stable position even without an external power source, preventing accidental slippage caused by vibration or load changes, and significantly improving the safety and reliability of equipment operation.

[0046] Furthermore, by setting the operating wheel 241 as a manual drive device, the operator can directly fine-tune the lateral position of the injection station without the need for tools or external power, which is especially suitable for situations requiring frequent and precise calibration, such as mold changes, initial alignment, or thermal expansion compensation. This structure is simple and practical, with a user-friendly human-machine interface, significantly reducing debugging difficulty and maintenance costs.

[0047] The moving device in this solution also includes a connecting component 300. The driving component 230 is slidably connected to the frame of the two-color injection molding machine through the connecting component 300 to adapt to the displacement changes of the injection stage during the position adjustment process.

[0048] Furthermore, the connecting assembly 300 includes a connecting block 310 and a third slide rail 320. The third slide rail 320 is fixedly installed on the frame of the two-color injection molding machine. The connecting block 310 is slidably connected to the third slide rail 320 and is locked in position after adjustment by locking bolts. The body of the driving component 230 is fixedly connected to the connecting block 310 and can slide synchronously with the connecting block 310 along the third slide rail 320.

[0049] The connecting block 310 has an internal mounting cavity, and the two ends of the shaft pin 311 are respectively fixed to the opposite side walls of the mounting cavity; the outer ring of the spherical bearing 312 is rotatably fitted onto the shaft pin 311, and its inner ring has an internal threaded hole; the end of the drive member 230 away from the bracket 100 is threaded into the internal threaded hole to achieve axial fixation while allowing a certain angle of swing compensation.

[0050] When it is necessary to correct the positional deviation of the injection station in the left and right directions to achieve precise alignment between the nozzle and the mold gate, first loosen the locking bolts between the connecting block 310 and the third slide rail 320; then manually rotate the operating wheel 241, which drives the first support seat 210 to move along the second slide rail 221 through the lead screw 240; since the bracket 100 is fixedly connected to the first support seat 210, the bracket 100 moves synchronously; at this time, the output end of the drive component 230 moves with the bracket 100, thereby driving its body and the connecting block 310 to slide along the third slide rail 320, achieving overall follow-up; after the injection station reaches the ideal alignment position, tighten the locking bolts again to fix the connecting block 310 on the third slide rail 320, completing the positioning.

[0051] The drive component 230 is designed as a follower structure that can slide along the third slide rail 320 via the connecting block 310, and is fixed by locking bolts after adjustment. Combined with the hinged connection of the spherical bearing 312, both axial fixation and a certain degree of angular swing compensation are achieved. This design effectively solves the connection interference problem caused by the fixed drive component 230 and the moving bracket 100 in the traditional structure. When manually adjusting the position of the firing table, the drive component 230 can move as a whole, avoiding additional bending moment, stress concentration or jamming, significantly improving the reliability and service life of the connection structure, and is especially suitable for high-precision production scenarios that require frequent alignment.

[0052] It should be noted that in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly defined. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly defined. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0053] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0054] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A moving device for a two-color injection molding machine injection table, characterized in that, include: The support frame and the firing platform are connected to the support frame. A movable component having a first support and a second support, the bracket being slidably connected to the first support, the first support being slidably connected to the second support, and the direction of movement of the bracket relative to the first support being perpendicular to the direction of movement of the first support relative to the second support. When the bracket moves along the first support base, and the first support base moves along the second support base, it drives the firing platform to move in two mutually perpendicular linear directions.

2. The moving device for a two-color injection molding machine injection table as described in claim 1, characterized in that, The first support base is provided with a first slide rail, and the bottom of the bracket is provided with a first slider. The bracket is slidably connected to the first slide rail via the first slider.

3. The moving device for a two-color injection molding machine injection table as described in claim 1, characterized in that, The second support is provided with a second slide rail, and the bottom of the first support is connected to a second slider. The first support is slidably connected to the second slide rail via the second slider.

4. The moving device for a two-color injection molding machine injection table as described in claim 1, characterized in that, The moving component further includes a driving element, the output end of which is connected to the bracket and is used to drive the bracket to move relative to the first support base.

5. The moving device for a two-color injection molding machine injection table as described in claim 1, characterized in that, The moving component also includes a lead screw and an adjusting block. The adjusting block is connected to the bottom of the first support base and has a through threaded hole inside. The lead screw passes through the threaded hole and is threadedly engaged with the adjusting block. When the lead screw rotates, it drives the first support base to move relative to the second support base.

6. The moving device for a two-color injection molding machine injection table as described in claim 5, characterized in that, An operating wheel is also provided at one end of the lead screw, which is used to manually drive the lead screw to rotate.

7. The moving device for a two-color injection molding machine injection table as described in claim 4, characterized in that, It also includes a connecting component, through which the drive unit is connected to a two-color injection molding machine.

8. The mobile device as claimed in claim 7, characterized in that, The connecting assembly includes a connecting block and a third slide rail. The driving component is connected to the connecting block, and the third slide rail is fixed to the two-color injection molding machine. The connecting block is adjustablely connected to the third slide rail and is fixed to the third slide rail after adjustment by locking bolts.

9. The moving device for a two-color injection molding machine injection table as described in claim 8, characterized in that, The connecting block has a mounting cavity, and the two ends of the shaft pin are respectively fixedly connected to the opposite side walls of the mounting cavity.

10. The moving device for a two-color injection molding machine injection table as described in claim 9, characterized in that, A spherical bearing is also provided at the center of the shaft pin. The spherical bearing has a threaded hole, and the end of the drive member away from the bracket is threadedly connected to the threaded hole.

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