Height adjusting structure of right-angle injection seat

Abstract

The utility model relates to the technical field of injection molding machines, and discloses a height adjusting structure of a right-angle injection seat, which comprises a guide rail seat provided with the right-angle injection seat, an injection base positioned at the lower end of the guide rail seat, and an adjusting component for realizing lifting and limiting of the guide rail seat relative to the injection base, the adjusting assembly comprises a guiding assembly used for vertically guiding the guide rail base and a driving assembly used for achieving lifting of the guide rail base. The driving assembly comprises a transmission block fixed to the injection base and provided with an internal thread through groove, a driving screw vertically connected to the transmission block in a threaded mode and a driving support fixed to the guide rail base and matched with the upper end of the driving screw in a rotating and supporting mode. The height adjusting structure is convenient to adjust, and the guide rail base is always in a flat state.

Description

Technical Field

[0001] This utility model relates to the field of injection molding machine technology, and in particular to a height adjustment structure for a right-angle injection seat. Background Technology

[0002] With the deepening development and market segmentation of the injection molding industry, some molds have been designed with special gate locations on the side. The gate location for these special molds is not at the center of the mold, but rather offset above or below the center. To ensure that the right-angle injection unit of the injection molding machine is compatible with these special molds, an adjustable mechanical structure has been added to the right-angle injection unit.

[0003] Chinese Patent No. CN105922524B discloses an injection molding mechanism. This injection molding mechanism includes an injection assembly, which includes components such as a barrel, a front plate of the injection stage, and a rear plate of the injection stage. The injection assembly is fixed on an injection guide seat, which slides along the injection guide. The bottom of the injection guide seat is provided with an injection base with a slider. The slider and the injection guide slide together. There are four sliders distributed at the four corners of the bottom of the injection guide seat. An adjusting screw is provided between the slider and the injection guide seat, and the height of the injection guide seat can be finely adjusted by adjusting the screw.

[0004] In the above structure, the four adjusting screws need to be adjusted one by one in sequence. It is difficult to ensure that the height of the four angles is uniform. Not only is the adjustment time long, but the flatness of the injection line rail seat cannot be guaranteed after adjustment, making it impossible to accurately adjust the nozzle position and affecting the injection quality. Utility Model Content

[0005] This invention addresses the shortcomings of existing technologies, such as the time-consuming height adjustment and difficult leveling of the guide rail seat supporting the injection assembly, by providing a height adjustment structure for a right-angle injection seat that facilitates both height and leveling.

[0006] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method:

[0007] A height adjustment structure for a right-angle injection seat includes a guide rail seat on which the right-angle injection seat is mounted, an injection base located at the lower end of the guide rail seat, and an adjustment component for raising and lowering the guide rail seat relative to the injection base and limiting its position. The adjustment component includes a guide component for vertically guiding the guide rail seat and a drive component for raising and lowering the guide rail seat. The drive component includes a transmission block fixed on the injection base and having an internal threaded through groove, a drive screw vertically screwed onto the transmission block, and a drive support fixed on the guide rail seat and rotatingly supporting the upper end of the drive screw.

[0008] Using the above solution, the guide rail seat and the injection base are guided vertically through a guide component. Since the injection base cannot be raised or lowered, the forward and reverse rotation of the drive screw can be used to raise or lower the drive screw relative to the drive support, thereby achieving the vertical raising and lowering of the guide rail seat. The above structure only requires adjusting the drive screw to achieve stable vertical raising and lowering of the guide rail seat relative to the injection base. The adjustment is convenient and the guide rail seat is always in a flat state.

[0009] Preferably, several sets of support adjustment components are provided between the guide rail base and the injection base to increase the load-bearing capacity of the guide rail base after the height of the guide rail base is adjusted.

[0010] The above solution results in a heavy injection seat. By adding a support and adjustment component, the guide rail seat can be supported, and most of the weight can be shared, significantly reducing the load on the drive support and drive screw.

[0011] Preferably, the support adjustment assembly includes a threaded groove vertically disposed on the injection base, an adjustment screw screwed into the threaded groove, and a mounting base fixedly mounted on the side wall of the guide rail seat with a mounting hole. A locking screw is screwed to the upper end of the adjustment screw, and the locking screw passes through the mounting hole and is tightly fitted with the adjustment screw.

[0012] Using the above method, after unscrewing the locking screw, the height of the guide rail can be adjusted by driving the screw. After the guide rail is adjusted, turn the adjusting screw until its upper end abuts against the lower end of the mounting base again. Finally, the locking screw passes through the mounting hole again and is tightly fitted with the adjusting screw.

[0013] Preferably, a locking nut is screwed onto the adjusting screw, which abuts against the lower end face of the injection base.

[0014] Using the above method, the locking nut is used to limit the deflection of the adjusting screw.

[0015] Preferably, one end of the drive screw and / or adjusting screw is provided with a drive element that facilitates its rotation.

[0016] Preferably, the driving component is a driving block or a rotary handle with a regular polygonal cross-section.

[0017] When the driving component is a driving block, the operator can use tools such as a wrench to rotate the driving screw and / or adjusting screw. When the driving component is a rotary handle, the operator can directly rotate the rotary handle manually to rotate the driving screw and / or adjusting screw.

[0018] Preferably, a guide groove is provided at the end of the drive support away from the guide rail seat, and a rotating bearing is inserted in the guide groove. The upper end of the drive screw is a smooth rod section that is interference-fitted with the inner ring of the rotating bearing. The upper and lower ends of the drive support are provided with clearance grooves that communicate with the guide groove and allow the drive screw to pass through.

[0019] With the above scheme, the guide groove facilitates the installation of the rotating bearing and limits the axial displacement of the rotating bearing. The driving support and the rotating bearing fill the bearing seat, limiting the axial displacement of the driving screw while realizing the rotational support of the driving screw.

[0020] Preferably, the guide assembly includes a stage guide rod vertically fixed to the lower end of the guide rail seat and a guide sleeve fixed to the injection base and allowing the stage guide rod to pass vertically through.

[0021] Preferably, the guide components are provided in two sets and symmetrically arranged on both sides of the drive component.

[0022] Using the above scheme, two groups are set up to provide stable guidance.

[0023] Preferably, the support adjustment components are provided in four sets and distributed at the four corners of the injection base.

[0024] Using the above scheme, four sets are set up to provide stable support.

[0025] This utility model, by adopting the above technical solution, has significant technical effects:

[0026] 1. The guide rail seat and the injection base are guided by a guide component to achieve stable vertical guidance of the guide rail seat. Since the injection base cannot be raised or lowered, the forward and reverse rotation of the drive screw can be used to raise or lower the drive screw relative to the drive support, thereby achieving vertical raising and lowering of the guide rail seat. The above structure only requires adjusting the drive screw to achieve stable vertical raising and lowering of the guide rail seat relative to the injection base. The adjustment is convenient and the guide rail seat is always in a flat state.

[0027] 2. After adding the support and adjustment components, the guide rail seat can be supported, and most of the weight can be distributed, significantly reducing the load on the drive support and drive screw. Attached Figure Description

[0028] Figure 1 This is an isometric view of the height adjustment structure of a right-angle injection seat according to this embodiment;

[0029] Figure 2 This is an isometric view of a right-angle injection seat height adjustment structure in this embodiment, with the injection seat assembled and the injection seat height increased.

[0030] Figure 3 This is the front view of a height adjustment structure for a right-angle injection seat according to this embodiment. Figure 1 ;

[0031] Figure 4 yes Figure 3 A sectional view of AA;

[0032] Figure 5This is the front view of a height adjustment structure for a right-angle injection seat according to this embodiment. Figure 2 ;

[0033] Figure 6 yes Figure 5 A cross-sectional view of BB.

[0034] The parts referred to by the numbers in the above attached diagrams are as follows: 1. Guide rail seat; 2. Injection base; 3. Drive support; 301. Guide groove; 302. Clearance groove; 4. Transmission block; 5. Rotary bearing; 6. Drive screw; 7. Drive block; 8. Mounting seat; 801. Mounting hole; 9. Adjusting screw; 901. Threaded groove; 10. Locking screw; 11. Injection table guide rod; 12. Fastening screw; 13. Guide sleeve; 14. Pressure cap; 15. Locking nut. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0036] A height adjustment structure for a right-angle injection seat, referring to Figures 1-6 As shown, it includes a guide rail seat 1 with a right-angle injection base, an injection base 2 located at the lower end of the guide rail seat 1, and an adjustment assembly for raising and lowering the guide rail seat 1 relative to the injection base 2 and limiting its position. The adjustment assembly includes a guide assembly for vertically guiding the guide rail seat 1 and a drive assembly for raising and lowering the guide rail seat 1.

[0037] The guide components are arranged in two sets at parallel intervals, as shown in the reference. Figure 4 As shown, the guide assembly includes a stage guide rod 11 that is vertically fixed to the lower end face of the guide rail seat 1 by fastening screws 12, and a guide sleeve 13 that is fixed to the injection base 2 and allows the stage guide rod 11 to pass through vertically. The guide sleeve 13 is a graphite copper sleeve. A pressure cap 14 is fixedly installed on the injection base by screws. The guide sleeve 13 is fixedly installed on the injection base 2 by the pressure cap 14.

[0038] Reference Figure 1 As shown, the drive assembly includes a transmission block 4 fixedly installed on the side wall of the injection base 2 between the two injection stage guide rods 11. The transmission block 4 has a vertical internal thread through groove, and a drive screw 6 is screwed into the internal thread through groove. The threads of the internal thread through groove and the drive screw 6 are both trapezoidal threads. A drive support 3 for rotating and supporting the drive screw 6 is fixed on the side wall of the guide rail seat 1.

[0039] A guide groove 301 is provided at the end of the drive support 3 away from the guide rail seat 1. A rotating bearing 5 is inserted in the guide groove 301. The rotating bearing 5 is a planar thrust ball bearing or a deep groove ball bearing. The upper end of the drive screw 6 is a smooth rod section that is interference-fitted with the inner ring of the rotating bearing 5. The upper and lower ends of the drive support 3 are provided with clearance grooves 302 that communicate with the guide groove 301 and allow the drive screw 6 to pass through.

[0040] A support adjustment assembly is provided between the guide rail base 1 and the injection base 2 to increase the load-bearing capacity of the guide rail base 1 after the height of the guide rail base 1 is adjusted. Figure 1 and Figure 6 As shown, the support adjustment assembly is provided in four sets and distributed at the four corners of the injection base 2. The support adjustment assembly includes a threaded through groove vertically arranged on the injection base 2, an adjustment screw 9 screwed into the threaded through groove, and a mounting base 8 fixedly installed on the side wall of the guide rail seat 1 with a mounting hole 801. The upper end of the adjustment screw 9 is provided with a threaded groove 901. The locking screw 10 passes through the mounting hole 801 and is screwed into the threaded groove 901. A locking nut 15 is screwed onto the adjustment screw 9 and abuts against the lower end face of the injection base 2.

[0041] To facilitate the rotation of the drive screw 6 and the adjusting screw 9, the upper end of the drive screw 6 and the lower end of the adjusting screw 9 are provided with a drive block 7 for easy rotation. The drive block 7 is square or regular hexagonal.

[0042] When the height of the guide rail seat 1 needs to be adjusted, first remove the locking screw 10. Then, use a wrench to rotate the drive block 7 at the upper end of the drive screw 6. As the drive screw 6 rises relative to the drive block 7, the guide rail seat 1 rises relative to the injection base 2. Due to the guiding effect of the injection stage guide rod 11 and the guide sleeve 13, the guide rail seat 1 remains stable. After the guide rail seat 1 rises to the required height, use a wrench to rotate the drive block 7 at the lower end of the adjusting screw 9 until the adjusting screw 9 rises to the upper end and abuts against the lower end face of the mounting base 8. Further, use the locking screw 10 to pass through the mounting hole 801 and achieve a tight fit with the threaded groove 901. Finally, rotate the locking nut 15 until it abuts against the lower end face of the mounting base 8.

[0043] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A height adjustment structure for a right-angle injection seat, comprising a guide rail seat (1) on which the right-angle injection seat is mounted, an injection base (2) located at the lower end of the guide rail seat (1), and an adjustment component for raising and lowering the guide rail seat (1) relative to the injection base (2) and limiting its movement, characterized in that: The adjustment assembly includes a guide assembly for vertically guiding the guide rail seat (1) and a drive assembly for lifting the guide rail seat (1). The drive assembly includes a transmission block (4) fixed on the injection base (2) and having an internal threaded through groove, a drive screw (6) vertically screwed on the transmission block (4), and a drive support (3) fixed on the guide rail seat (1) and rotatingly cooperating with the upper end of the drive screw (6).

2. The height adjustment structure of a right-angle injection seat according to claim 1, characterized in that: Several sets of support adjustment components are provided between the guide rail seat (1) and the injection base (2) to increase the load-bearing capacity of the guide rail seat (1) after the height of the guide rail seat (1) is adjusted.

3. The height adjustment structure of a right-angle injection seat according to claim 2, characterized in that: The support adjustment assembly includes a threaded through groove vertically disposed on the injection base (2), an adjustment screw (9) screwed onto the threaded through groove, and a mounting base (8) fixedly mounted on the side wall of the guide rail base (1) and having a mounting hole (801). A locking screw (10) is screwed onto the upper end of the adjustment screw (9), and the locking screw (10) passes through the mounting hole (801) and is tightly fitted with the adjustment screw (9).

4. The height adjustment structure of a right-angle injection seat according to claim 3, characterized in that: A locking nut (15) is screwed onto the adjusting screw (9) and abuts against the lower end face of the injection base (2).

5. The height adjustment structure of a right-angle injection seat according to claim 3, characterized in that: One end of the drive screw (6) and / or adjusting screw (9) is provided with a drive element that facilitates its rotation.

6. The height adjustment structure of a right-angle injection seat according to claim 5, characterized in that: The driving component is a driving block (7) with a regular polygonal cross-section or a rotating handle.

7. The height adjustment structure of a right-angle injection seat according to claim 1, characterized in that: A guide groove (301) is provided at one end of the drive support (3) away from the guide rail seat (1). A rotating bearing (5) is inserted in the guide groove (301). The upper end of the drive screw (6) is a smooth rod section that is interference-fitted with the inner ring of the rotating bearing (5). The upper and lower ends of the drive support (3) are provided with clearance grooves (302) that communicate with the guide groove (301) and allow the drive screw (6) to pass through.

8. The height adjustment structure of a right-angle injection seat according to claim 1, characterized in that: The guiding assembly includes a stage guide rod (11) that is vertically fixed to the lower end of the guide rail seat (1) and a guide sleeve (13) that is fixed to the injection base (2) and allows the stage guide rod (11) to pass through vertically.

9. The height adjustment structure of a right-angle injection seat according to claim 8, characterized in that: The guide components are arranged in two sets and symmetrically on both sides of the drive components.

10. The height adjustment structure of a right-angle injection seat according to claim 3, characterized in that: The support adjustment components are provided in four sets and distributed at the four corners of the injection base (2).

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