Adjusting and locking mechanism for injection seat stand of injection molding machine

Abstract

The utility model relates to the technical field of injection molding machines, and discloses an injection molding machine injection seat stand adjusting and locking mechanism which comprises an injection support, an injection seat arranged on the injection support and a position adjusting structure arranged between the injection seat and the injection support and used for adjusting the position of the injection seat. The position adjusting structure comprises a transverse adjusting structure which is arranged between the injection seat and the injection bracket and is used for driving the injection seat to transversely and horizontally move, a longitudinal adjusting structure which is used for driving the injection seat to vertically move, and a locking structure which is used for limiting relative movement between the injection seat and the injection bracket when the injection seat moves to a target position; according to the adjusting and locking mechanism, the position adjusting capability is greatly improved by adjusting the transverse and longitudinal movement of the injection seat.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, in particular to an adjusting and locking mechanism for an injection seat platform of an injection molding machine. Background Art

[0002] An injection molding machine generally includes an injection molding machine body, a mold mechanism and an injection mechanism. The injection mechanism usually includes an injection bracket, an injection seat arranged on the injection bracket, a barrel arranged on the injection seat, and a nozzle arranged on an end of the barrel away from the injection seat. The nozzle is directly opposite to the center hole of the mold mechanism, and the injection screw is inserted into the injection seat and the barrel to inject the raw material into the mold mechanism through the nozzle for plasticization and molding.

[0003] However, the parts included in the injection mechanism will inevitably have deviations during processing. The deviations will further accumulate after assembly, which often causes the nozzle and the center hole of the mold mechanism to be non-concentric, resulting in material leakage during the operation of the injection molding machine. Therefore, it is necessary to ensure that the position of the injection seat is adjustable. After installation, the employee can adjust the injection seat to the target position, that is, the position where the nozzle and the center hole of the mold mechanism are concentric.

[0004] Chinese patent application number 201120121466.9 discloses an injection molding machine injection seat injection position adjustment device, including an adjusting screw, the adjusting screw is connected to a common hexagonal nut, an oil-free self-lubricating bearing is installed in the adjusting screw fixing seat hole, the adjusting screw is installed in the adjusting screw fixing seat hole and is connected and fixed to the oil-free self-lubricating bearing, an adjusting nut is installed on the inner side of the adjusting screw through an adjusting screw fixing ring, the inner end of the adjusting screw is connected to a fixing screw fixing seat, the screw fixing seat is installed on a B injection seat bracket, and a linear motion guide pair is installed at the bottom of the B injection seat bracket.

[0005] This solution rotates the adjusting screw to drive the adjusting nut to move linearly, driving the injection seat bracket to move horizontally to adjust the position. However, the above solution can only adjust the horizontal position of the injection seat by horizontal movement, and cannot perform longitudinal adjustment in the vertical direction, and the position adjustment ability is poor. Utility Model Content

[0006] The utility model aims at the disadvantage of poor position adjustment capability of an injection seat in the prior art and provides an adjustment and locking mechanism for an injection seat platform of an injection molding machine.

[0007] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0008] An injection molding machine injection seat platform adjustment and locking mechanism comprises an injection support, an injection seat arranged on the injection support, and a position adjustment structure arranged between the injection seat and the injection support for adjusting the position of the injection seat, wherein the position adjustment structure comprises a lateral adjustment structure arranged between the injection seat and the injection support for driving the injection seat to move horizontally, a longitudinal adjustment structure for driving the injection seat to move vertically, and a locking structure for limiting the relative movement between the injection seat and the injection support when the injection seat moves to a target position.

[0009] By adopting the above scheme, the lateral adjustment structure can make the injection seat move horizontally, and the longitudinal adjustment structure can drive the injection seat to move vertically. The position of the injection seat can be adjusted through the lateral and longitudinal movement of the injection seat, which greatly improves the position adjustment capability of the injection seat until the nozzle on the injection seat is concentric with the center hole of the mold mechanism. The locking structure limits the relative movement between the injection seat and the injection bracket, thereby completing the adjustment of the position of the injection seat.

[0010] Preferably, the lateral adjustment structure includes fixed blocks fixedly arranged on both sides of the injection seat on the injection bracket and a transversely arranged screw whose one end passes through the fixed block and abuts against the side wall of the injection seat, and the screw is threadedly connected to the fixed block.

[0011] With the above solution, a fixing plate is provided on each side of the injection seat, and screws are provided on both fixing plates. When controlling the movement of the injection seat, the two screws need to be adjusted. First, rotate the screw on one side to disengage the screw from the injection seat and no longer abut against the injection seat, and then rotate the screw on the other side to gradually approach the screw that was previously disengaged from the injection seat, thereby pushing the injection seat to move closer to the screw that has been disengaged from it. After moving to the target position, the screw that has been disengaged from the injection seat rotates closer to the injection seat until it abuts against the injection seat. Both screws abut against the injection seat to limit the horizontal movement of the injection seat.

[0012] Preferably, the longitudinal adjustment structure includes an external threaded sleeve with one end longitudinally arranged passing through the injection seat and abutting against the injection bracket, and the external threaded sleeve is threadedly connected to the injection seat.

[0013] With the above solution, since the external thread sleeve and the injection seat are threadedly matched and the injection seat does not rotate, the injection seat can be vertically raised or lowered by rotating the external thread sleeve.

[0014] Preferably, the locking structure includes a locking bolt that passes longitudinally through the external threaded sleeve, cooperates with the injection bracket thread and presses the external threaded sleeve onto the injection bracket. There is an adjustment gap between the external threaded sleeve and the locking bolt that allows relative lateral sliding between the two.

[0015] By adopting the above solution, the locking bolt is rotated until the bolt head is separated from the external threaded sleeve, and the external threaded sleeve can rotate relative to the injection bracket, and due to the existence of the adjustment gap, the external threaded sleeve can be ensured to move horizontally with the injection seat. After the injection seat is adjusted to the target position, the locking bolt is rotated until the bolt head and the end of the external threaded sleeve away from the injection bracket are in interference contact, that is, the external threaded sleeve is clamped between the bolt head and the injection bracket, so that the external threaded sleeve and the injection bracket are relatively static, so the injection seat can no longer be raised or lowered and can no longer be moved horizontally.

[0016] Preferably, a protective gasket is provided between the bolt head and the external threaded sleeve.

[0017] By adopting the above solution, when the bolt head and the end of the external threaded sleeve are in interference contact, the protective gasket can reduce the damage to the external threaded sleeve and extend the service life of the external threaded sleeve.

[0018] Preferably, a longitudinal locking nut which is threadably matched with the external threaded sleeve is sleeved on the external threaded sleeve.

[0019] By adopting the above scheme, after the injection seat is adjusted to the target position, the longitudinal locking nut is rotated until the external threaded sleeve is locked, thereby limiting the rotation of the external threaded sleeve and further limiting the vertical movement of the injection seat.

[0020] Preferably, a transverse locking nut matching the screw thread is provided on the screw.

[0021] By adopting the above scheme, after the injection seat is adjusted to the target position, the transverse locking nut is rotated until the locking screw is locked to limit the rotation of the screw and further limit the horizontal movement of the injection seat.

[0022] The utility model has significant technical effects due to the adoption of the above technical solutions: the lateral movement of the injection seat is driven by the cooperation between the two screws, and the longitudinal movement of the injection seat is controlled by the rotation of the external threaded sleeve, and the position adjustment capability is greatly improved. When the injection seat is adjusted to the target position, the locking bolt is rotated so that the bolt head and the injection bracket cooperate to clamp the external threaded sleeve to ensure the relative stillness between it and the injection bracket, so that the injection seat is limited to the target position; at the same time, the lateral locking nut and the longitudinal locking nut are tightened to limit the rotation of the screw and the external threaded sleeve, further improving the stability of the injection seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a partial cross-sectional view of an adjustment and locking mechanism of an injection molding machine injection seat platform in an embodiment;

[0024] Figure 2 yes Figure 1 Enlarged view of point A in .

[0025] The names of the parts indicated by the numerical labels in the above drawings are as follows: 1. Injection bracket; 2. Injection seat; 3. Fixing block; 4. Screw; 5. Horizontal locking nut; 6. External threaded sleeve; 7. Locking bolt; 701, bolt head; 8. Adjustment gap; 9. Protective gasket; 10. Longitudinal locking nut; 11. Thread groove. DETAILED DESCRIPTION

[0026] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0027] Example

[0028] An adjustment and locking mechanism for the injection molding machine injection seat, referring to Figure 1 and Figure 2 , including an injection bracket 1, an injection seat 2 is arranged on the injection bracket 1, and a position adjustment structure for adjusting the position of the injection seat 2 is arranged between the injection seat 2 and the injection bracket 1.

[0029] The position adjustment structure includes a lateral adjustment structure, a longitudinal adjustment structure and a locking structure. The lateral adjustment structure can make the injection seat 2 move horizontally; the longitudinal adjustment structure can drive the injection seat 2 to move vertically. The position of the injection seat 2 can be adjusted by the lateral and longitudinal movement of the injection seat 2, greatly improving the position adjustment capability of the injection seat 2 until the nozzle on the injection seat 2 is concentric with the center hole of the mold mechanism. At this time, the locking structure limits the relative movement between the injection seat 2 and the injection bracket 1, completing the position adjustment of the injection seat 2.

[0030] The lateral adjustment structure includes fixed blocks 3 fixedly arranged on both sides of the injection seat 2 on the injection bracket 1, and a screw 4 is laterally arranged on each fixed block 3. One end of the screw 4 passes through the fixed block 3 and abuts against the side wall of the injection seat 2, and the screw 4 is threadedly connected to the fixed block 3.

[0031] When controlling the lateral movement of the injection seat 2, it is necessary to adjust the two screws 4 at the same time. First, rotate the screw 4 on one side so that the screw 4 is separated from the injection seat 2 and no longer abuts against the injection seat 2; then rotate the screw 4 on the other side so that the screw 4 gradually approaches the screw 4 that was previously separated from the injection seat 2, thereby pushing the injection seat 2 to move closer to the screw 4 that has been separated from it. After moving to the target position, the screw 4 that has been separated from the injection seat 2 rotates closer to the injection seat 2 until it abuts against the injection seat 2. Both screws 4 abut against the injection seat 2 to limit the horizontal movement of the injection seat 2.

[0032] The longitudinal adjustment structure includes an external threaded sleeve 6 arranged longitudinally, one end of the external threaded sleeve 6 passes through the injection seat 2 and abuts against the injection bracket 1 , and the external threaded sleeve 6 is threadedly connected to the injection seat 2 .

[0033] The external threaded sleeve 6 and the injection seat 2 are threadably matched and the injection seat 2 will not rotate, so the injection seat 2 can be vertically raised or lowered by rotating the external threaded sleeve 6 to adjust the position in the vertical longitudinal direction.

[0034] The locking structure includes a locking bolt 7, one end of the locking bolt 7 away from the bolt head 701 passes longitudinally through the external thread sleeve 6 and then matches with the injection bracket 1 thread. When the locking bolt 7 is tightened, its bolt head 701 matches with the injection bracket 1 to clamp the external thread sleeve 6; when it is loosened, the restriction on the external thread sleeve 6 is released. There is an adjustment gap 8 between the inner ring wall of the external thread sleeve 6 and the locking bolt 7 to allow the two to slide relative to each other laterally. The injection bracket 1 is provided with a thread groove 11 that is tightly matched with the thread of the locking bolt 7.

[0035] The locking bolt 7 is rotated until the bolt head 701 is disengaged from the external threaded sleeve 6, and the external threaded sleeve 6 can be rotated to adjust the position of the injection seat 2 longitudinally; and due to the existence of the adjustment gap 8, it can be ensured that the external threaded sleeve 6 can move horizontally a certain distance with the injection seat 2. After the injection seat 2 is adjusted to the target position, the locking bolt 7 is rotated until the bolt head 701 and the end of the external threaded sleeve 6 away from the injection bracket 1 are in interference contact, that is, the external threaded sleeve 6 is clamped between the bolt head 701 and the injection bracket 1, so that the external threaded sleeve 6 and the injection bracket 1 are relatively still, ensuring the stillness of the injection seat 2.

[0036] A protective gasket 9 is provided between the bolt head 701 and the external threaded sleeve 6 to reduce damage to the external threaded sleeve 6 and extend the service life of the external threaded sleeve 6 .

[0037] The external threaded sleeve 6 is provided with a longitudinal locking nut 10 threadedly matched with the external threaded sleeve 6, and the screw rod 4 is provided with a transverse locking nut 5 threadedly matched with the screw rod 4. After the injection seat 2 is adjusted to the target position, the longitudinal locking nut 10 and the transverse locking nut 5 are tightened to further limit the rotation of the external threaded sleeve 6 and the screw rod 4, ensuring that the injection seat 2 is stationary at the target position.

[0038] When adjusting the position, loosen the transverse locking nut 5, the longitudinal locking nut 10 and the locking bolt 7, rotate the screws 4 on both sides of the injection seat 2 to drive the injection seat 2 to move laterally on the injection bracket 1, and rotate the external threaded sleeve 6 to drive the injection seat 2 to move longitudinally on the injection bracket 1 until the injection seat 2 is adjusted to the target position, rotate the locking bolt 7 so that the bolt head 701 cooperates with the injection bracket 1 to clamp the external threaded sleeve 6, and then tighten the transverse locking nut 5 and the longitudinal locking nut 10 to ensure that the injection seat 2 is stationary at the target position.

[0039] 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. An injection molding machine injection seat adjustment and locking mechanism, comprising an injection support (1), an injection seat (2) arranged on the injection support (1), and a position adjustment structure for adjusting the position of the injection seat (2) arranged between the injection seat (2) and the injection support (1), characterized in that: The position adjustment structure comprises a lateral adjustment structure arranged between the injection seat (2) and the injection support (1) for driving the injection seat (2) to move horizontally, a longitudinal adjustment structure for driving the injection seat (2) to move vertically, and a locking structure for limiting the relative movement between the injection seat (2) and the injection support (1) when the injection seat (2) moves to a target position.

2. The adjusting and locking mechanism for the injection molding machine injection seat according to claim 1, characterized in that: The lateral adjustment structure comprises fixed blocks (3) respectively fixedly arranged on both sides of the injection seat (2) on the injection support (1) and a screw rod (4) arranged transversely, one end of which passes through the fixed block (3) and abuts against the side wall of the injection seat (2), wherein the screw rod (4) is threadedly connected to the fixed block (3).

3. The adjusting and locking mechanism for the injection molding machine injection seat according to claim 2, characterized in that: The longitudinal adjustment structure comprises an external threaded sleeve (6) with one end arranged longitudinally passing through the injection seat (2) and abutting against the injection bracket (1), and the external threaded sleeve (6) is threadedly connected to the injection seat (2).

4. The adjusting and locking mechanism for the injection molding machine injection seat according to claim 3, characterized in that: The locking structure comprises a locking bolt (7) which longitudinally passes through an external threaded sleeve (6) and then engages with the injection bracket (1) through a thread and presses the external threaded sleeve onto the injection bracket (1); an adjustment gap (8) exists between the external threaded sleeve (6) and the locking bolt (7) to allow the two to move relative to each other laterally.

5. The adjusting and locking mechanism for the injection molding machine injection seat according to claim 4, characterized in that: A protective gasket (9) is arranged between the bolt head (701) and the external threaded sleeve (6).

6. The adjusting and locking mechanism for the injection molding machine injection seat according to claim 4, characterized in that: The external thread sleeve (6) is sleeved with a longitudinal locking nut (10) which is threadably matched with the external thread sleeve (6).

7. The adjusting and locking mechanism for the injection molding machine injection seat according to claim 2, characterized in that: The screw rod (4) is sleeved with a transverse locking nut (5) which is threadably matched with the screw rod (4).

Images