A slider connection mechanism for a vertical injection molding machine

Abstract

The utility model discloses a vertical injection molding machine sliding plate connecting mechanism, aims at solving the technical problem of uneven stress, inconvenient dismounting of existing mechanism. The mechanism includes lower form board, sliding plate cylinder, sliding plate pull block, inner hexagon screw, stopper, connecting rod type universal bearing, sliding plate pull pin, slide, fixed sliding plate, movable sliding plate, and sliding plate pull block is only locked in the slide lateral surface alone, and the stopper is locked in the sliding plate pull block outside through the inner hexagon screw to limit the sliding plate pull pin. The utility model passes through the optimization component mounting structure, avoided the installation inclination of sliding plate pull block, ensured the balanced force of sliding plate cylinder, prolonged the service life of equipment, eliminated the mutual interference when dismounting simultaneously, and the operation was time -saving and labor -saving, reduced the maintenance cost, guaranteed the continuity of production, promoted the injection molding operation stability and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of injection molding technology, and in particular to a sliding plate connection mechanism for a vertical injection molding machine. Background Technology

[0002] In existing vertical injection molding machine slide block connection mechanisms, the slide block needs to be locked to both the slide bar and the side of the moving slide. Because the slide bar is prone to deformation after heat treatment, it often becomes uneven with the outer side of the moving slide, causing the slide block to be installed at an angle. This results in an imbalance of forces during power transmission to the slide cylinder, accelerated wear of components, shortened service life of the slide cylinder and the entire connection mechanism, and impacts the stability of injection molding operations. It can also lead to problems such as station switching jams and product precision deviations, thus hindering production efficiency.

[0003] The existing mechanism uses washers and screws for limiting movement, with the screws directly locked to the outside of the slide plate pull pin. During disassembly and assembly, the slide plate pull pin easily rotates synchronously with the screws, obstructing operation; furthermore, the installation of the linkage-type universal bearing blocks the mounting holes of the slide plate pull block, resulting in limited operating space. This makes the disassembly and assembly process complex, time-consuming, and labor-intensive, increasing equipment maintenance costs and downtime, severely impacting the continuity of injection molding production, and failing to meet the actual needs of high-efficiency production. Utility Model Content

[0004] The purpose of this utility model is to provide a vertical injection molding machine slide plate connection mechanism, which solves the problems in the existing vertical injection molding machine slide plate connection mechanism, where the slide plate pull block needs to be locked to both the slide bar and the side of the moving slide plate, and the existing mechanism uses a washer and screw for limiting, with the screw directly locked to the outside of the slide plate pull pin.

[0005] To achieve the above objectives, a vertical injection molding machine slide plate connection mechanism is provided, characterized in that it includes a lower template, a slide plate cylinder, a slide plate pull block, an internal hexagon screw, a connecting rod universal bearing, a slide plate pull pin, a slide bar, a fixed slide plate, and a movable slide plate. The slide plate cylinder and the fixed slide plate are both installed on the lower template, the movable slide plate is placed on the fixed slide plate, the slide bar is fixed below the movable slide plate and its notch matches the notch of the fixed slide plate, the connecting rod universal bearing is installed on the slide plate cylinder shaft through an internal thread, the slide plate pull pin is inserted into the slide plate pull block and the connecting rod universal bearing, and a stop block is also included; the slide plate pull block is only locked to the side of the slide bar; the internal hexagon screw passes through the stop block and is locked to the outside of the slide plate pull block, and the stop block is used to prevent the slide plate pull pin from disengaging from the connecting rod universal bearing.

[0006] According to the vertical injection molding machine slide plate connecting mechanism, the stop block is fitted with the slide plate pull block, and the stop block has a through hole adapted to the internal hexagon screw.

[0007] According to the vertical injection molding machine slide plate connection mechanism, the slide plate pull block and the slide bar are locked together by bolts.

[0008] According to the vertical injection molding machine slide plate connecting mechanism, the slide plate pull pin is arranged horizontally and is adapted to and matched with the slide plate pull block and the connecting rod universal bearing.

[0009] According to the vertical injection molding machine slide plate connection mechanism, the slide bar and the moving slide plate are fixedly connected, and the notch of the slide bar is adapted to the notch of the fixed slide plate.

[0010] According to the vertical injection molding machine slide plate connecting mechanism, the connecting rod universal bearing is threadedly connected to the slide plate cylinder shaft, and the connecting rod universal bearing is compatible with the slide plate pull pin.

[0011] The above solution has beneficial effects: 1. This utility model effectively solves the problem of uneven force distribution in existing mechanisms by optimizing the installation structure of the core components. The slide block is locked separately to the side of the slide bar, completely avoiding the problem of unevenness on the outer side of the moving slide and slide bar caused by heat treatment deformation, and preventing the slide block from being installed tilted. At the same time, the slide pin is installed horizontally and precisely matched with related components, ensuring balanced force distribution during the power transmission of the slide cylinder, reducing component wear, significantly extending the service life of the slide cylinder and the entire connecting mechanism, and improving the stability and reliability of injection molding operations.

[0012] 2. This utility model simplifies the disassembly and assembly process, significantly improving maintenance convenience. The stop block is directly locked to the outside of the slide block with an internal hex screw, and will not rotate with the slide block pin during disassembly and assembly, ensuring smooth operation. The installation position of the slide block does not overlap with the connecting rod universal bearing, avoiding mutual obstruction and providing ample operating space. The entire mechanism requires no complex disassembly steps, saving time and effort, reducing equipment maintenance costs and downtime, and further ensuring the continuity and efficiency of injection molding production.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a schematic diagram of the overall structure of a vertical injection molding machine slide plate connecting mechanism according to the present invention; Figure 2 This is a cross-sectional view of a vertical injection molding machine slide plate connecting mechanism according to the present invention.

[0015] Legend: 1. Lower template; 2. Slide cylinder; 3. Slide pull block; 4. Hex socket head cap screw; 5. Stop block; 6. Linkage universal bearing; 7. Slide pull pin; 8. Slide bar; 9. Fixed slide; 10. Moving slide. Detailed Implementation

[0016] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0017] Reference Figure 1-2 This utility model discloses a vertical injection molding machine slide plate connection mechanism, including a lower template 1, a slide plate cylinder 2, a slide plate pull block 3, an internal hexagon screw 4, a connecting rod universal bearing 6, a slide plate pull pin 7, a slide bar 8, a fixed slide plate 9, and a movable slide plate 10. The slide plate cylinder 2 and the fixed slide plate 9 are both installed on the lower template 1. The movable slide plate 10 is placed on the fixed slide plate 9. The slide bar 8 is fixed below the movable slide plate 10, and its notch mates with the notch of the fixed slide plate 9. The connecting rod universal bearing 6 is installed on the shaft of the slide plate cylinder 2 via an internal thread. The slide plate pull pin 7 is inserted into the slide plate pull block 3 and the connecting rod universal bearing 6. The feature is that: Includes stop block 5; slide block 3 is only locked to the side of slide bar 8; hex socket screw 4 passes through stop block 5 and is locked to the outside of slide block 3. Stop block 5 is used to prevent slide pin 7 from disengaging from connecting rod universal bearing 6. The lower mold plate 1 is made of HT200 high-strength cast iron, and its dimensions are designed according to the injection molding machine model to ensure the overall load-bearing stability of the mechanism; slide cylinder 2 is a standard hydraulic cylinder of model HOB63*50, and its shaft end is machined with M16 external thread, which is compatible with the internal thread of connecting rod universal bearing 6; fixed slide plate 9 is fixed to the lower mold by 4 M12 hex socket bolts. Above plate 1, the mounting surface is milled, with a flatness error ≤0.02mm; the movable slide plate 10 is placed on the fixed slide plate 9, with its bottom surface in contact with the upper surface of the fixed slide plate 9, and the sliding surface is coated with wear-resistant grease; the slide bar 8 is fixed to the underside of the movable slide plate 10 by 6 evenly distributed M8 bolts, the width of its notch is consistent with the width of the protrusion of the fixed slide plate 9, and the gap is controlled within 0.03-0.05mm to achieve precise guidance; the connecting rod universal bearing 6 is selected as model SWC100, the internal thread specification matches the external thread of the slide cylinder 2 shaft, and it is fixed by anti-loosening washers after tightening; the slide plate pull block 3 The slide bar 8 is a machined part made of 45# steel. It is individually secured to the side of the slide bar 8 by two M10 countersunk bolts, without contacting the moving slide plate 10 to avoid installation interference. The slide plate pull pin 7 is a φ20mm 45# steel round shaft with chamfered ends. It passes through the inner hole of the slide plate pull block 3 and the inner hole of the connecting rod universal bearing 6 in sequence, and is inserted to the position where the stop block 5 is engaged. The stop block 5 is a 10mm thick Q235 steel plate. The internal hex bolt 4 is an M12 type. After passing through the through hole of the stop block 5, it is locked with the threaded hole of the slide plate pull block 3. The inner side of the stop block 5 is tightly engaged with the end of the slide plate pull pin 7 to form a reliable limit. The stop block 5 is fitted to the slide block 3. The stop block 5 has a through hole that matches the internal hex screw 4. The outer dimensions of the stop block 5 are perfectly matched with the outer end face dimensions of the slide block 3. It is a rectangular structure of 100mm×50mm to ensure that there is no hanging area after fitting. The through hole on the stop block 5 is located in the center and has a diameter of 13mm, which matches the outer diameter (12mm) of the internal hex screw 4. The inner wall of the through hole is reamed and the surface roughness Ra≤1.6μm to reduce the frictional resistance when the internal hex screw 4 is inserted. During assembly, the inner end face of the stop block 5 is completely fitted with the outer end face of the slide block 3 with no gaps between the fitting surfaces. After being locked by the internal hex screw 4, the stop block 5 will not shift or wobble, ensuring the stable limiting effect on the slide block pin 7.

[0018] The slide block 3 and the slide bar 8 are connected by bolts. The bolts used to connect the slide block 3 and the slide bar 8 are 8.8 grade high-strength internal hexagon countersunk bolts with a specification of M10×25mm. Two countersunk holes are opened on the slide block 3, with a hole diameter of 11mm and a countersunk depth of 6mm, to ensure that the bolt head is fully embedded in the slide block 3 and does not affect the fit of the stop block 5. M10 threaded holes with a thread depth of 15mm are machined on the corresponding position on the side of the slide bar 8. The bolt tightening torque is controlled at 35-40N・m to ensure that the slide block 3 and the slide bar 8 are firmly connected and there is no relative displacement during operation, providing a stable guarantee for power transmission.

[0019] The slide bar pin 7 is horizontally positioned and is compatible with both the slide bar block 3 and the connecting rod universal bearing 6. The axis of the slide bar pin 7 is parallel to the horizontal direction, and its coaxiality error with the axis of the slide bar cylinder 2 is ≤0.02mm, ensuring consistent power transmission direction. The slide bar pin 7 has a transition fit (H7 / k6) with the inner hole of the slide bar block 3, and also has a transition fit (H7 / k6) with the inner ring of the connecting rod universal bearing 6. This ensures that the slide bar pin 7 can rotate flexibly to transmit power while avoiding wobbling caused by excessive clearance. The slide bar pin 7 is 150mm long, with 50mm inserted into the inner hole of the slide bar block 3 and 30mm inserted into the inner ring of the connecting rod universal bearing 6. Sufficient fit length is reserved at both ends to ensure reliable connection.

[0020] The slider 8 and the movable slide plate 10 are fixedly connected. The notch of the slider 8 matches the notch of the fixed slide plate 9. The slider 8 and the movable slide plate 10 are fixed with M8×20mm hex bolts. The bolts are evenly distributed along the length of the slider 8 with a spacing of 80mm, and a total of 6 bolts are set to ensure uniform force on the connection surface. The notch of the slider 8 is a V-shaped structure with an included angle of 60°. The corresponding protrusion of the fixed slide plate 9 is also a 60° V-shaped structure. After the two are fitted together, the contact area is ≥80%. During sliding, the V-shaped structure achieves bidirectional guidance to prevent the movable slide plate 10 from shifting left and right. The slider 8 is made of 45 steel and the surface is quenched to achieve a hardness of HRC40-45, which enhances wear resistance and extends service life.

[0021] The connecting rod universal bearing 6 is threadedly connected to the shaft of the slide cylinder 2. The connecting rod universal bearing 6 is compatible with the slide pin 7. The internal thread of the connecting rod universal bearing 6 is M16×1.5, which is completely matched with the external thread of the shaft of the slide cylinder 2. The thread fit accuracy is 6H / 6g. There is no jamming during tightening. After tightening, a spring washer is used to prevent loosening, avoiding loosening due to vibration during operation. The inner ring diameter of the connecting rod universal bearing 6 is 20mm, which is a transition fit (H7 / k6) with the outer diameter (20mm) of the slide pin 7. The inner ring is made of bearing steel and the surface is phosphated to reduce the friction coefficient between it and the slide pin 7, ensuring smooth power transmission and reducing energy loss.

[0022] Working principle: In use, the lower template 1 serves as the installation base. The slide cylinder 2 and the fixed slide plate 9 are both fixedly installed above the lower template 1. The movable slide plate 10 is movably mounted on the fixed slide plate 9, and a slide bar 8 is fixedly connected below it. The slide bar 8 adapts and fits with the notch of the fixed slide plate 9 to achieve guiding and limiting. The connecting rod universal bearing 6 is threadedly connected to the shaft of the slide cylinder 2 via internal threads. The slide pull block 3 is individually locked to the side of the slide bar 8, and its interior is coaxial with the inner hole of the connecting rod universal bearing 6. The slide pull pin 7... The horizontal insertion of the slide block 3 into the inner hole of the connecting rod universal bearing 6 realizes the power transmission. The stop block 5 is attached to the outside of the slide block 3 and locked by the internal hex screw 4 to prevent the slide pin 7 from falling off. During operation, the shaft of the slide cylinder 2 moves in extension and retraction, which drives the slide pin 7 to move back and forth through the connecting rod universal bearing 6. The slide pin 7 then pulls the slide bar 8 through the slide block 3. The slide bar 8 drives the moving slide plate 10 to slide linearly along the guide structure of the fixed slide plate 9, and finally realizes the station switching required for injection molding.

[0023] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A sliding plate connecting mechanism for a vertical injection molding machine, characterized in that, The system includes a lower template (1), a slide cylinder (2), a slide pull block (3), an internal hex screw (4), a connecting rod universal bearing (6), a slide pull pin (7), a slide bar (8), a fixed slide plate (9), and a movable slide plate (10). The slide cylinder (2) and the fixed slide plate (9) are both installed on the lower template (1). The movable slide plate (10) is placed on the fixed slide plate (9). The slide bar (8) is fixed below the movable slide plate (10) and its notch matches the notch of the fixed slide plate (9). The connecting rod universal bearing (6) is installed on the shaft of the slide cylinder (2) through an internal thread. The slide pull pin (7) is inserted into the slide pull block (3) and the connecting rod universal bearing (6). The system is characterized by: including a stop block (5); the slide pull block (3) is only locked to the side of the slide bar (8); the internal hex screw (4) passes through the stop block (5) and is locked to the outside of the slide pull block (3). The stop block (5) is used to prevent the slide pull pin (7) from disengaging from the connecting rod universal bearing (6).

2. The vertical injection molding machine slide plate connecting mechanism according to claim 1, characterized in that, The stop block (5) is fitted to the slide block (3), and the stop block (5) has a through hole that is compatible with the internal hex screw (4).

3. The vertical injection molding machine slide plate connecting mechanism according to claim 1, characterized in that, The slide block (3) and the slide bar (8) are connected by bolts.

4. The vertical injection molding machine slide plate connecting mechanism according to claim 1, characterized in that, The slide bar pin (7) is arranged horizontally and is compatible with the slide bar block (3) and the connecting rod universal bearing (6).

5. The vertical injection molding machine slide plate connecting mechanism according to claim 1, characterized in that, The slide bar (8) and the movable slide plate (10) are fixedly connected, and the notch of the slide bar (8) is adapted to the notch of the fixed slide plate (9).

6. The vertical injection molding machine slide plate connecting mechanism according to claim 1, characterized in that, The connecting rod universal bearing (6) and the shaft of the slide cylinder (2) are threaded together, and the connecting rod universal bearing (6) and the slide pull pin (7) are compatible.

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