Injection molding machine capable of conveniently and rapidly replacing mold

Abstract

According to the injection molding machine capable of conveniently and rapidly replacing the mold, an auxiliary supporting mechanism and a clamping mechanism are arranged on each of a fixed plate and a movable plate, the auxiliary supporting mechanisms can stably support the mold, and the mold does not need to be suspended for a long time by depending on a travelling crane; the auxiliary supporting mechanism can lift up and down to adjust the longitudinal position of the mold, the two clamping mechanisms arranged left and right in a spaced mode can slide left and right to adjust the transverse position to adapt to molds of different specifications, the mold is directly clamped and locked after position adjustment, and therefore mold position adjustment and locking installation can be rapidly completed; manpower input and time consumption for repeatedly adjusting the position of the mold are greatly reduced, and the mold changing efficiency is effectively improved; by means of supporting of the auxiliary supporting mechanism on the mold and clamping of the clamping mechanism on the mold, the mold can be kept in a stable state in the mold changing process, the instability situation caused when a traditional crane hovers is avoided, position deviation caused by mold shaking is avoided, and the possibility that the mold falls off due to poor stability is greatly reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of injection molding machines, in particular to an injection molding machine facilitating quick mold replacement. BACKGROUND

[0002] In the field of injection molding production, according to the production requirements of different products, the injection molding machine needs to frequently replace the corresponding mold, and the efficiency of mold replacement is directly related to the overall production progress. At present, when replacing the mold, the traditional injection molding machine generally adopts the mode of using a crane to lift the mold and make it hover in the air.

[0003] In this process, in order to ensure that the mold can be accurately aligned with the mounting hole positions on the fixed plate and the moving plate of the injection molding machine, the position of the mold needs to be repeatedly adjusted. This operation not only consumes a lot of manpower and time, but also seriously slows down the mold replacement process. Moreover, the stability of the mold in the hovering state is very poor, and in the adjustment process, a slight carelessness may cause the mold to fall due to improper operation of the workers, which not only causes damage to the mold, but also poses a great threat to the personal safety of the operators, bringing many inconveniences and risks to production. SUMMARY

[0004] The present application aims to at least solve one of the problems existing in the prior art, and for this purpose, the present application provides an injection molding machine facilitating quick mold replacement.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: An injection molding machine facilitating quick mold replacement comprises a mold closing device and an injection device. The mold closing device comprises two plate bodies arranged oppositely, one of which is a fixed plate and the other is a moving plate that moves relative to the fixed plate. An auxiliary supporting mechanism and a clamping mechanism are arranged on both plate bodies. The auxiliary supporting mechanism is used to support the mold and can be adjusted in vertical position. The clamping mechanism is arranged in two on both sides of the plate body and is used to clamp the mold and can be adjusted in horizontal position.

[0006] In some embodiments, the auxiliary supporting mechanism comprises longitudinal sliding grooves arranged on the end face of the plate body. Longitudinal sliding block rods are arranged in the longitudinal sliding grooves. A supporting plate is connected to the lower end of the longitudinal sliding block rods and is used to support the mold. The upper end of the longitudinal sliding block rods extends above the plate body and is connected to a lifting assembly.

[0007] In some embodiments, the lifting assembly comprises a supporting frame arranged on the upper end of the plate body. A first hydraulic cylinder is arranged on the supporting frame. A connecting plate is connected to the upper end of the longitudinal sliding block rods. The piston rod of the first hydraulic cylinder is connected to the connecting plate.

[0008] In some embodiments, the longitudinal slider rod is slidably embedded in the longitudinal slide groove.

[0009] In some embodiments, the clamping mechanism includes a transverse sliding groove spaced upper and lower on the end surface of the plate body, a transverse slider slides in both transverse sliding grooves, a mounting plate is connected between the two transverse sliders, and the mounting plate is spaced upper and lower with a clamping assembly.

[0010] In some embodiments, the clamping assembly includes an articulated seat provided on the mounting plate, a clamping block is hinged on the articulated seat, the clamping block includes a clamping part, a driving part and a hinge shaft, the hinge shaft is rotatably installed on the articulated seat, the clamping part is used to clamp the mold, the driving part is connected to a second hydraulic cylinder, the piston rod of the second hydraulic cylinder is provided with a guide column, a transverse guide groove is provided on the driving part, and the guide column is movably provided in the transverse guide groove.

[0011] In some embodiments, a baffle is further provided on the clamping portion, and a bolt is threadedly connected to the hinge seat, and the threaded end of the bolt can abut against one side of the baffle, so that the clamping portion maintains the shape of clamping the mold.

[0012] In some embodiments, a handle is further provided on the mounting plate.

[0013] In some embodiments, a rubber anti-slip pad is provided at the clamping end of the clamping portion.

[0014] In some embodiments, scale lines are provided on the end surface of the longitudinal slider rod.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The injection molding machine features auxiliary support and clamping mechanisms on both the fixed and movable plates. The auxiliary support provides stable support for the mold, eliminating the need for a crane to hover the mold for extended periods. The auxiliary support can be raised or lowered to adjust the mold's longitudinal position, while two clamping mechanisms, spaced apart on the left and right, can slide horizontally to accommodate molds of varying sizes. After position adjustment, the mold is clamped and locked, enabling rapid mold adjustment and installation. This significantly reduces the labor and time required for repeated mold adjustments, effectively improving mold change efficiency.

[0016] 2. With the support of the auxiliary support mechanism and the clamping mechanism, the mold can remain stable during the mold change process, getting rid of the instability of traditional hovering, avoiding position deviation caused by mold shaking, and greatly reducing the possibility of mold falling due to poor stability.

[0017] 3. Because the mold is stabilized by the auxiliary support and clamping mechanisms during mold changes, it no longer relies on manual and difficult position adjustment of the mold in a suspended state. This reduces close contact between workers and unstable molds, effectively avoiding safety accidents such as personal injury and equipment damage caused by mold drops due to improper operation, and significantly improving the safety of mold changes. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the injection molding machine of the present invention.

[0019] Figure 2 It is a structural schematic diagram of the clamping mechanism of the present invention when clamping a mold.

[0020] Figure 3 For the present invention Figure 2 A is an enlarged structural diagram of FIG.

[0021] Figure 4 It is a structural schematic diagram of the auxiliary support mechanism and the clamping mechanism of the present invention.

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the clamping mechanism of the present invention.

[0023] Figure 6 It is a schematic cross-sectional structural diagram of the clamping mechanism of the present invention. DETAILED DESCRIPTION

[0024] The following detailed description provides various embodiments or examples for implementing the present invention. Of course, these are merely examples or embodiments and are not intended to be limiting. Furthermore, repeated reference numerals, such as repeated numbers and / or letters, may be used in different embodiments. Such repetition is for simplicity and clarity in describing the present invention and does not imply a specific relationship between the different embodiments and / or configurations discussed.

[0025] like Figures 1-6 The injection molding machine shown is convenient for quickly changing molds, and includes a mold clamping device 1 and an injection device 2. The mold clamping device 1 includes two plates 3 arranged opposite to each other, one of the two plates 3 is a fixed plate 4, and the other is a movable plate 5 that moves relative to the fixed plate 4. Auxiliary support mechanisms and clamping mechanisms are provided on both plates 3. The auxiliary support mechanism is used to support the mold 10 and can be raised and lowered to adjust the longitudinal position. The clamping mechanism is provided with two at intervals on the left and right, which are used to clamp the mold 10 and can slide left and right to adjust the lateral position.

[0026] According to the above structure, the fixed plate 4 and the moving plate 5 of the injection molding machine are both provided with auxiliary support mechanisms and clamping mechanisms, the auxiliary support mechanisms can form stable support for the mold 10, and the mold does not need to be suspended by the crane for a long time. Meanwhile, the auxiliary support mechanisms can be adjusted in the vertical direction to adjust the longitudinal position of the mold, and the two clamping mechanisms arranged left and right can be adjusted in the horizontal direction to adjust the lateral position, which is suitable for molds of different specifications. After the position adjustment, the mold can be clamped and locked directly, so that the mold position adjustment and locking can be quickly completed, and the labor input and time consumption for repeated adjustment of the mold position are greatly reduced, and the mold changing efficiency is effectively improved.

[0027] With the support of the auxiliary support mechanisms and the clamping of the clamping mechanisms, the mold can remain in a stable state during mold changing, and the unstable state of the traditional crane suspension is eliminated, the position deviation caused by the shaking of the mold is avoided, and the possibility of falling caused by poor stability of the mold is greatly reduced.

[0028] Since the mold is stably handled by the auxiliary support mechanisms and the clamping mechanisms during mold changing, the high-difficulty position adjustment under the suspended state of the mold no longer depends on manual operation, the close contact between workers and unstable molds is reduced, and thus safety accidents such as personnel injury and equipment damage caused by improper operation are effectively avoided, and the safety of the mold changing operation is significantly improved.

[0029] Referring to Figure 2-Figure 4 The auxiliary support mechanism includes longitudinal sliding grooves 21 arranged left and right on the end face of the plate body 3, longitudinal sliding block rods 22 sliding in the two longitudinal sliding grooves 21, and support plates 23 connected to the lower ends of the two longitudinal sliding block rods 22 for supporting the mold 10. The upper ends of the longitudinal sliding block rods 22 extend above the plate body 3 and are connected to a lifting assembly.

[0030] Specifically, two longitudinal sliding grooves 21 are arranged left and right on the end face of the plate body 3, and the longitudinal sliding block rods 22 are slidingly embedded in the longitudinal sliding grooves 21. The support plates 23 are made of metal plates and are fixedly connected to the lower ends of the two longitudinal sliding block rods 22 by bolts. The top surface of the support plates 23 can be provided with anti-slip patterns. The lifting assembly is installed on the upper end of the plate body 3 and is used to drive the longitudinal sliding block rods 22 to slide up and down in the longitudinal sliding grooves 21, thereby driving the support plates 23 to slide up and down. When the mold 10 needs to be placed and installed, the position of the support plate 23 is adjusted in advance according to the distance between the glue inlet of the mold 10 and the bottom end of the mold 10. When the mold 10 is placed on the support plate 23, the glue inlet is aligned with the nozzle 20 of the injection molding machine, which greatly improves the mold changing efficiency and shortens the equipment downtime.

[0031] Furthermore, a scale line 91 is provided on the end surface of the longitudinal slider rod 22. Thus, when the longitudinal slider rod 22 is raised or lowered, the operator can intuitively understand the raising or lowering height of the longitudinal slider rod 22 by observing the corresponding position of the scale line 91 and the upper end of the plate body 3 or a fixed reference line, thereby accurately controlling the height of the support plate 23.

[0032] Furthermore, the scale line 91 provides an intuitive height reference for the operator, facilitating precise adjustment of the longitudinal position of the mold 10 , reducing repeated adjustments due to inaccurate position adjustment, and further improving mold change efficiency and positioning accuracy.

[0033] Furthermore, the lifting assembly includes a support frame 31 arranged at the upper end of the plate body 3, a first hydraulic cylinder 32 is provided on the support frame 31, a connecting plate 33 is connected to the upper ends of the two longitudinal sliding rods 22, and the piston rod of the first hydraulic cylinder 32 is connected to the connecting plate 33.

[0034] Specifically, the support frame 31 is fixed to the upper end of the plate body 3 by welding or bolts, the cylinder body of the first hydraulic cylinder 32 is connected and fixed to the support frame 31, the connecting plate 33 is a metal plate, which is welded or bolted to the upper ends of the two longitudinal slider rods 22, and the piston rod end of the first hydraulic cylinder 32 is connected to the center position of the connecting plate 33 by a pin or bolt.

[0035] The first hydraulic cylinder 32 is used to drive the automatic lifting and lowering adjustment; the two longitudinal slider rods 22 move synchronously through the connecting plate 33 to ensure that the support plate 23 is evenly stressed when it is lifted and lowered, thereby preventing the mold 10 from tilting and improving the adjustment stability.

[0036] The longitudinal sliding block rod 22 is slidably embedded in the longitudinal sliding groove 21 .

[0037] Of course, an elastic rubber pad can be provided on the end face of the longitudinal slider rod 22, and the elastic rubber pad slightly protrudes from the end face of the plate body 3. When the clamping mechanism clamps the mold 10, the mold 10 presses the elastic rubber pad and the longitudinal slider rod 22 at the same time, which can limit the accidental sliding of the longitudinal slider rod 22 in the longitudinal slide groove 21, ensuring that it maintains a predetermined position during the operation of the mold, avoiding the mold position deviation due to the sliding of the slider rod, and is conducive to maintaining the accuracy of the injection molded product.

[0038] See also Figure 2-Figure 6 As shown, the clamping mechanism includes a horizontal slide groove 51 arranged at upper and lower intervals on the end surface of the plate body 3, and a horizontal slider 52 slides in both of the horizontal slide grooves 51. A mounting plate 53 is connected between the two horizontal sliders 52, and the mounting plate 53 is spaced apart with a clamping component at upper and lower intervals.

[0039] Specifically, two horizontal sliding grooves 51 spaced apart from each other are opened horizontally on the end face of the plate body 3, and the horizontal slider 52 is adapted to the horizontal sliding groove 51 and slides into it; the mounting plate 53 is a rectangular metal plate, which is fixedly connected to the two horizontal sliders 52 by bolts, and the clamping assembly is installed at upper and lower intervals on the side of the mounting plate 53 facing the mold 10.

[0040] This pushes the mounting plate 53, driving the transverse slider 52 to slide left and right in the transverse slot 51, thereby driving the clamping assembly to move left and right; when the mold 10 is placed in place, the mold 10 is clamped and fixed by the clamping assembly.

[0041] The clamping assembly includes an articulated seat 61 provided on the mounting plate 53, and a clamping block 62 is hinged on the articulated seat 61. The clamping block 62 includes a clamping portion 63, a driving portion 64 and a hinge shaft 65. The hinge shaft 65 is rotatably installed on the articulated seat 61. The clamping portion 63 is used to clamp the mold 10. The driving portion 64 is connected to a second hydraulic cylinder 68. The piston rod of the second hydraulic cylinder 68 is provided with a guide column 66. A transverse guide groove 67 is provided on the driving portion 64. The guide column 66 is movably provided in the transverse guide groove 67.

[0042] The articulated seat 61 is welded or bolted to the mounting plate 53, and the articulated shaft 65 of the clamping block 62 passes through the axial hole on the articulated seat 61 to realize the rotational connection; the clamping part 63 and the driving part 64 are an integrated structure, the cylinder body of the second hydraulic cylinder 68 is mounted on the mounting plate 53, the guide column 66 is fixed to the end of the piston rod of the second hydraulic cylinder 68, and the transverse guide groove 67 is opened on the driving part 64, and the guide column 66 is embedded in the transverse guide groove 67 and can slide relatively.

[0043] During operation, the piston rod of the second hydraulic cylinder 68 extends and retracts, driving the guide column 66 to move. The guide column 66 slides in the transverse guide groove 67 and pushes the driving part 64, causing the clamping block 62 to rotate around the hinge shaft 65, thereby causing the clamping part 63 to move closer to or away from the mold 10, thereby clamping or releasing the mold 10.

[0044] See also Figure 3 、 Figure 6 As shown, a baffle 71 is further provided on the clamping portion 63, and a bolt 72 is threadedly connected to the hinge seat 61. The threaded end of the bolt 72 can abut against one side of the baffle 71, so that the clamping portion 63 maintains the shape of clamping the mold.

[0045] After the clamping portion 63 clamps the mold 10, the bolt 72 is tightened so that its threaded end abuts against one side of the baffle 71, forming a limit for the clamping portion 63, preventing it from rotating under the reaction force of the mold 10, thereby maintaining the clamping state.

[0046] Thus, the clamping state is locked by the cooperation of the bolt 72 and the baffle 71, the clamping looseness caused by the failure of the second hydraulic cylinder 68 and the like is avoided, the stability and safety of clamping are enhanced, and the device is especially suitable for long-time die changing or temporary stoppage.

[0047] A handle 81 is arranged on the mounting plate 53, and an operator can easily push the mounting plate 53 by holding the handle 81, drive the transverse sliding block 52 to slide in the transverse sliding groove 51, and realize the transverse position adjustment of the clamping mechanism.

[0048] A rubber antiskid pad is arranged at the clamping end of the clamping part 63. When the clamping part 63 clamps the die 10, the rubber antiskid pad is in contact with the surface of the die 10, the friction between them is increased, and the elasticity of the rubber can buffer the clamping force, so that the clamping part 63 is not in hard contact with the die 10.

[0049] The person skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only for illustrating the principle of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An injection molding machine for facilitating rapid mold replacement, comprising a mold clamping device (1) and an injection device (2), wherein the mold clamping device (1) comprises two plates (3) arranged opposite to each other, one of the two plates (3) being a fixed plate (4) and the other being a movable plate (5) movable relative to the fixed plate (4), characterized in that: An auxiliary support mechanism and a clamping mechanism are provided on both of the two plates (3). The auxiliary support mechanism is used to support the mold (10) and can be raised and lowered to adjust the longitudinal position. Two clamping mechanisms are provided at intervals on the left and right, and are used to clamp the mold (10) and can be slid left and right to adjust the lateral position.

2. The injection molding machine for facilitating rapid mold replacement according to claim 1, characterized in that: The auxiliary support mechanism includes longitudinal slide grooves (21) arranged at intervals on the left and right sides of the end surface of the plate body (3), longitudinal slider rods (22) slide in both longitudinal slide grooves (21), and support plates (23) for supporting the mold (10) are connected to the lower ends of the two longitudinal slider rods (22). The upper ends of the longitudinal slider rods (22) extend above the plate body (3) and are connected to a lifting assembly.

3. The injection molding machine for facilitating rapid mold replacement according to claim 2, characterized in that: The lifting assembly includes a support frame (31) arranged at the upper end of the plate body (3), a first hydraulic cylinder (32) is arranged on the support frame (31), a connecting plate (33) is connected to the upper ends of the two longitudinal slider rods (22), and a piston rod of the first hydraulic cylinder (32) is connected to the connecting plate (33).

4. The injection molding machine for facilitating rapid mold replacement according to claim 2, characterized in that: The longitudinal slider rod (22) is slidably embedded in the longitudinal slide groove (21).

5. The injection molding machine for facilitating rapid mold replacement according to claim 1, characterized in that: The clamping mechanism comprises a transverse sliding groove (51) provided at an upper and lower interval on the end surface of the plate body (3), a transverse slider (52) sliding in each of the two transverse sliding grooves (51), a mounting plate (53) connected between the two transverse sliders (52), and a clamping assembly spaced at an upper and lower interval on the mounting plate (53).

6. The injection molding machine for facilitating rapid mold replacement according to claim 5, characterized in that: The clamping assembly includes an articulated seat (61) provided on the mounting plate (53), a clamping block (62) is hinged on the articulated seat (61), the clamping block (62) includes a clamping portion (63), a driving portion (64) and a hinge shaft (65), the hinge shaft (65) is rotatably mounted on the articulated seat (61), the clamping portion (63) is used to clamp the mold (10), the driving portion (64) is connected to a second hydraulic cylinder (68), the piston rod of the second hydraulic cylinder (68) is provided with a guide column (66), a transverse guide groove (67) is provided on the driving portion (64), and the guide column (66) is movably provided in the transverse guide groove (67).

7. The injection molding machine for facilitating rapid mold replacement according to claim 6, characterized in that: A baffle (71) is also provided on the clamping portion (63), and a bolt (72) is threadedly connected to the hinge seat (61), and the threaded end of the bolt (72) can abut against one side of the baffle (71), so that the clamping portion (63) maintains the shape of clamping the mold.

8. The injection molding machine for facilitating rapid mold replacement according to claim 5, characterized in that: A handle (81) is also provided on the mounting plate (53).

9. The injection molding machine for facilitating rapid mold replacement according to claim 6, characterized in that: A rubber anti-slip pad is provided at the clamping end of the clamping portion (63).

10. The injection molding machine for facilitating rapid mold replacement according to claim 2, characterized in that: A scale line (91) is provided on the end surface of the longitudinal slider rod (22).

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