Molding machine template replacing device

Abstract

The utility model relates to the technical field of molding machine template replacing equipment, and provides a molding machine template replacing device which is used for replacing a template in a molding machine and comprises a moving device, the moving device is provided with a transverse moving mechanism, a longitudinal moving mechanism, a lifting mechanism and a clamping piece, and the clamping piece is arranged on the lifting mechanism. The lifting mechanism is arranged on the longitudinal moving mechanism, the longitudinal moving mechanism is arranged on the transverse moving mechanism, and the clamping piece is used for being connected with a formwork in a clamped mode. The blowing mechanism is arranged on the lifting mechanism, an air outlet pipe of the blowing mechanism faces the end, away from the lifting mechanism, of the clamping piece, and the blowing mechanism is configured in the mode that after the blowing mechanism blows the template connecting face in the molding machine, the clamping piece clamps the template to be connected with the molding machine. By means of the technical scheme, the technical problem that in the prior art, due to the fact that sand adheres to the mold plate connecting face of a molding machine, mold plate positioning is not accurate when mold plates are replaced is solved.

Description

A molding machine template changing device Technical Field

[0001] This utility model relates to the technical field of template replacement equipment for molding machines, specifically, to a template replacement device for molding machines. Background Technology

[0002] The vertical parting boxless injection molding machine is a type of molding machine. Its molding chamber consists of a molding frame and front and back templates. Template replacement is an essential part of the operation.

[0003] In the prior art, utility model with publication number CN212127464U discloses a fully automatic template quick-change device, including a template conveying mechanism and a quick-change mechanism. The clamps on the quick-change mechanism achieve three-dimensional free movement through horizontal, vertical, and lifting functions. After the clamps lift the template, the template is transported from the template conveying mechanism to the molding chamber or from the molding chamber to the template conveying mechanism. In actual use, after the template is removed, or during transportation, some sand may adhere to the contact surface between the template and the molding machine, or the connection surface between the molding machine and the template. When the operator places the template back on the connection surface of the molding machine, this can lead to inaccurate template positioning, affecting the molding quality, and may also cause template damage. Summary of the Invention

[0004] To overcome the above-mentioned defects, this utility model provides a template replacement device for a molding machine, which solves the technical problem in the prior art that sand adhering to the template connection surface of the molding machine easily leads to inaccurate template positioning during template replacement.

[0005] According to one aspect, at least one embodiment of the present invention provides a template changing device for a molding machine, used for changing templates inside a molding machine, comprising:

[0006] A template changing device for a molding machine, used for changing templates inside the molding machine, comprising:

[0007] The mobile device has a lateral moving mechanism, a longitudinal moving mechanism, and a lifting mechanism. The lifting mechanism is mounted on the longitudinal moving mechanism, and the longitudinal moving mechanism is mounted on the lateral moving mechanism. The locking element is used to engage with the template.

[0008] A locking element is provided on the moving mechanism, and the locking element is used to engage with the template.

[0009] An air blowing mechanism is provided on the lifting mechanism. The air blowing mechanism is configured such that after the air blowing mechanism blows air onto the template connecting surface inside the molding machine, the clamping piece holds the template and connects it to the molding machine.

[0010] For example, in a molding machine template changing device provided in at least one embodiment of the present invention, the air blowing mechanism is located above the card.

[0011] For example, in at least one embodiment of the present invention, a template changing device for a molding machine further includes:

[0012] A laser detection device is installed on the lifting mechanism and is located on one side of the blowing mechanism. The laser detection device is used to detect whether there is a template on the card or whether there is a template that has not been removed on the molding machine.

[0013] For example, in a molding machine template changing device provided in at least one embodiment of this utility model, the locking component includes:

[0014] The main board is located on the side of the lifting mechanism closest to the molding machine;

[0015] A first card block is disposed on the motherboard. The top of the first card block has a first card slot with an upward opening. The first card slot is used to support a mushroom-shaped protrusion on the template.

[0016] A second card block is disposed on the motherboard, located below the first card block. The top of the second card block has an upward-facing second card slot, which is used to support another protrusion on the same template.

[0017] For example, in a molding machine template changing device provided in at least one embodiment of this utility model, the locking component further includes:

[0018] A limiting plate is slidably disposed on the main board. After the limiting plate slides close to the first card slot and / or the second card slot, the limiting plate and the first card slot or the second card slot form a limiting space, which is used to prevent the protrusion from falling off.

[0019] For example, in at least one embodiment of the present invention, a template changing device for a molding machine further includes:

[0020] A template conveying device is movable relative to the moving device. After the template conveying device moves, it approaches or moves away from the moving device. The template conveying device is used to convey templates.

[0021] For example, in at least one embodiment of the present invention, a template changing device for a molding machine further includes:

[0022] The mounting plate is detachably mounted above the lifting mechanism, and the air blowing mechanism and the laser detection device are both mounted on the mounting plate.

[0023] For example, in a molding machine template changing device provided in at least one embodiment of the present invention, the main board is detachably connected to the lifting mechanism, and the first card block and the second card block are both detachably connected to the main board.

[0024] For example, in a molding machine template changing device provided in at least one embodiment of this utility model, the air blowing mechanism includes:

[0025] A support plate is rotatably mounted on the mounting plate, and the axis of rotation of the support plate is perpendicular to the template plane;

[0026] There are several air outlet pipes, which are arranged at one end of the support plate away from the axis of rotation, and the several air outlet pipes are radially distributed along the plane of the support plate.

[0027] For example, in a molding machine template changing device provided in at least one embodiment of the present invention, the first card block and / or the second card block are rotatably mounted on the main board, and the rotation axis of the first card block and / or the second card block is parallel to the rotation axis of the air blowing mechanism.

[0028] The beneficial effects of the embodiments of this utility model are as follows:

[0029] In this invention, the air-blowing mechanism cleans the template connection surface, reducing template positioning deviations caused by sand adhesion. It also prevents collisions and damage during template installation caused by sand adhesion, extending the template's service life. The mobility function of the moving device, combined with the air-blowing cleaning mechanism, not only shortens template replacement time compared to manual cleaning but also avoids potential safety hazards associated with manual operation. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0031] Figure 1 is a schematic diagram of an embodiment of the present invention and a molding machine;

[0032] Figure 2 is a front view of the embodiment shown in Figure 1.

[0033] Figure 3 is a magnified structural diagram of point A in Figure 2;

[0034] Figure 4 is a schematic diagram of the embodiment of Figure 1 from another angle;

[0035] Figure 5 is a schematic diagram of the rear view structure of the embodiment shown in Figure 1;

[0036] Figure 6 is a schematic diagram of the template conveying device;

[0037] Figure 7 is a front view structural schematic diagram of the template conveying device;

[0038] Figure 8 is a schematic diagram of the card structure in Example 2;

[0039] In the diagram: 100, moving device; 110, lateral moving mechanism; 120, longitudinal moving mechanism; 130, lifting mechanism; 140, clamping component; 200, air blowing mechanism; 300, laser detection device; 401, protrusion; 141, main board; 142, first clamping block; 1421, first clamping slot; 143, second clamping block; 1431, second clamping slot; 144, limiting plate; 145, limiting space; 500, template conveying device; 600, mounting plate; 210, support plate; 220, air outlet pipe. Detailed Implementation

[0040] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0041] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0042] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0043] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0044] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0045] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0046] As shown in Figures 1-7, a template changing device for a molding machine according to one embodiment of this utility model is illustrated. This device is used to replace templates within the molding machine and mainly consists of two parts: a moving device 100 and an air blowing mechanism 200. The moving device 100 enables the template to move in three-dimensional space and includes a horizontal moving mechanism 110, a vertical moving mechanism 120, a lifting mechanism 130, and a locking member 140 that engages with the template. The air blowing mechanism 200 is mounted on the lifting mechanism 130, with its air outlet facing the end of the locking member 140 away from the lifting mechanism 130. It is used to clean the template connection surfaces within the molding machine by blowing air during template replacement.

[0047] The lateral movement mechanism 110 employs a linear guide rail and ball screw transmission system. The ball screw is driven by a servo motor to achieve precise displacement control. When the motor rotates, the ball screw drives the connected longitudinal movement mechanism 120 to move laterally along the linear guide rail. The longitudinal movement mechanism 120 is also based on a linear guide rail and ball screw structure. Its linear guide rail is vertically mounted on the slider of the lateral movement mechanism 110, and the ball screw is driven by another servo motor. The function of the longitudinal movement mechanism 120 is to achieve the displacement of the clamp 140 and the template in the longitudinal direction based on the lateral movement. The lifting mechanism 130 adopts a scissor lift structure or an electric push rod structure. The scissor lift structure consists of intersecting links, and the extension and retraction of the scissors are controlled by a motor-driven hydraulic pump or an electric push rod, thereby realizing the lifting and lowering movement of the clamp 140. The electric push rod structure achieves lifting and lowering by the extension and retraction of the push rod driven by a motor. The clip 140 has a slot or claw that is compatible with the template. The clip 140 can be stably fixed to the template by engaging with the template through the slot or claw.

[0048] The air source for the air blowing mechanism 200 can be a compressed air system within the factory or an independent air compressor. The air source is connected to the air blowing mechanism 200 via a pipeline, with a regulating valve installed on the pipeline to adjust the air pressure and flow rate to meet different cleaning needs. The air blowing head can be a flat rectangular nozzle with multiple evenly distributed air jets, allowing compressed air to be sprayed evenly onto the template connection surface.

[0049] Working principle: When the moving device 100 is activated, the horizontal moving mechanism 110 and the vertical moving mechanism 120 work together to move the clamp 140 below the template to be disassembled. Then, the lifting mechanism 130 rises, so that the clamp 140 is firmly engaged with the template.

[0050] After clamping the template with clip 140, lifting mechanism 130 rises, lifting the template from the molding machine. After the template is removed, air blowing mechanism 200 is activated. Compressed air supplied by the air source is transmitted through pipeline to the air blowing head. After the pressure and flow are regulated by the regulating valve, it is ejected from the small jet nozzle of the air blowing head. The air blowing head sprays compressed air evenly towards the template connection surface inside the molding machine, blowing off sand adhering to the template connection surface and clearing away obstacles that may affect the next template positioning. Next, lateral movement mechanism 110 and longitudinal movement mechanism 120 operate again, transporting the template to the designated storage location or the location of the next processing step. Moving device 100 transports the new template above the molding machine, and lifting mechanism 130 descends, bringing the template close to the molding machine's connection surface. Just before the template is about to contact the molding machine's connection surface, air blowing mechanism 200 is activated again to briefly blow air onto the template connection surface, ensuring that no residual sand remains on the template. Then, the template is slowly lowered, accurately installed on the molding machine's connection surface, completing the template replacement.

[0051] The air blowing mechanism 200 cleans the template connection surfaces, reducing template positioning deviations caused by sand adhesion. It also prevents collisions and damage during template installation caused by sand adhesion, extending the template's service life. The moving function of the moving device 100, combined with the cleaning by the air blowing mechanism 200, not only shortens template replacement time compared to manual cleaning but also avoids potential safety hazards associated with manual operation.

[0052] In some examples, the blowing mechanism 200 is located above the card 140 and blows air from top to bottom onto the connection surface between the template and the molding machine or the connection surface between the molding machine and the template. This not only enhances the cleaning effect of sand by combining gravity, but also prevents sand from accumulating at the blowing nozzle.

[0053] In some examples, a laser detection device 300 is also included. The laser detection device 300 is mounted on the lifting mechanism 130 and located on one side of the blowing mechanism 200. The laser detection device 300 is used to detect whether there is a template on the card 140 or whether there is a template that has not been removed on the molding machine.

[0054] The laser detection device 300 operates based on the principles of laser ranging and reflection. It mainly consists of a laser emitter, a laser receiver, and a signal processing circuit. The laser emitter emits a laser beam, which is reflected when it encounters the template surface. The laser receiver receives the reflected light and converts the optical signal into an electrical signal. The signal processing circuit analyzes and processes the electrical signal to determine whether there is a template on the card 140 or whether there is a template that has not been removed from the molding machine.

[0055] The laser detection device 300 can detect the status of the template in real time and avoid collisions caused by operator error, such as when the previous template has not been removed from the molding chamber and another template is installed in the molding chamber.

[0056] In some examples, the locking component 140 consists of a main board 141, a first locking block 142, and a second locking block 143. The main board 141 is located on the side of the lifting mechanism 130 near the molding machine, providing a mounting base for the first locking block 142 and the second locking block 143, and bearing the weight of the template and transmitting the force of the lifting mechanism 130 during template handling. The first locking block 142 is mounted on the main board 141, and its top has an upward-opening first locking slot 1421 for supporting a protrusion 401 on the template; the second locking block 143 is also located on the main board 141 and below the first locking block 142, and its top has an upward-opening second locking slot 1431 for supporting another protrusion 401 on the template. This double-slot structure achieves stable locking of the template.

[0057] Template disassembly process: The moving device 100 is activated, and the lateral moving mechanism 110 and the longitudinal moving mechanism 120 work together to move the clamping piece 140 below the template to be disassembled. At this time, the lifting mechanism 130 rises, so that the first slot 1421 of the first clamping block 142 and the second slot 1431 of the second clamping block 143 are respectively aligned with the two protrusions 401 on the template. When the first slot 1421 and the second slot 1431 accurately fit the corresponding protrusions 401, the lifting mechanism 130 rises, and the first clamping block 142 and the second clamping block 143 lift the protrusions 401 through the slots, thereby lifting the template from the molding machine. Subsequently, the lateral moving mechanism 110 and the longitudinal moving mechanism 120 operate to transport the template to the designated storage location or the location of the next processing step.

[0058] Template installation process: The moving device 100 transports the new template above the molding machine, and the lifting mechanism 130 descends, bringing the template close to the connecting surface of the molding machine. During the descent, the first locking block 142 and the second locking block 143 continuously support the template, ensuring its stable position. Next, the lifting mechanism 130 slowly descends, accurately installing the template onto the connecting surface of the molding machine. Then, the lifting mechanism 130 continues to descend, and the first locking block 142 and the second locking block 143 separate from the protrusion 401 of the template, completing the template installation. Throughout the process, the locking component 140 works closely with the moving device 100, the air blowing mechanism 200, and the laser detection device 300 to ensure the template replacement is completed accurately and efficiently.

[0059] The first slot 1421 and the second slot 1431 are used to engage with the stem of the protrusion 401 in the mushroom head row. The template surface and the mushroom head position with a larger diameter of the protrusion 401 clamp the clip 140 in the middle. This not only makes the operation convenient, but also ensures high engagement stability and prevents the protrusion 401 from falling off.

[0060] In some examples, card 140 also includes:

[0061] The limiting plate 144 is slidably disposed on the main board 141. After the limiting plate 144 slides, it approaches or moves away from the first card slot 1421 and / or the second card slot 1431. After the limiting plate 144 slides, it forms a limiting space 145 with the first card slot 1421 or the second card slot 1431. The limiting space 145 is used to prevent the protrusion 401 from falling off.

[0062] The bottom of the limiting plate 144 is provided with a slider that cooperates with the guide rail groove of the main board 141. The side of the limiting plate 144 near the card slot can be designed into a suitable shape according to the shape of the card slot and the characteristics of the protrusion 401. For example, when it cooperates with the semi-circular card slot, this side of the limiting plate 144 is a quarter arc of the same radius, so as to better form a limiting space 145 with the card slot.

[0063] The limiting plate 144 slides closer to or further away from the first slot 1421 and / or the second slot 1431, forming a limiting space 145 with the slot. When the template protrusion 401 is placed in the slot, the limiting plate 144 slides, so that it and the slot together restrict the horizontal movement of the protrusion 401, preventing the protrusion 401 from falling out of the slot due to vibration, tilting, etc., and improving the reliability of the clamp 140 in fixing the template.

[0064] In some examples, a template conveying device 500 is also included, which is movable relative to the moving device 100. After the template conveying device 500 moves closer to or further away from the moving device 100, the template conveying device 500 is used to convey templates.

[0065] The template conveying device 500 has a module placement platform with slots or blocks that allow the templates to be placed vertically, facilitating the loading and unloading of templates by the clamping component 140. The template conveying device 500 can slide on a slide rail laid on the ground. The template conveying device 500 has its own drive unit, which drives the rotating wheels, chain, or traction rope of the template conveying device 500 to move on the slide rail.

[0066] In some examples, a mounting plate 600 is also included, which is detachably mounted above the lifting mechanism 130 by bolts or quick-release clamps. If bolted connections are used, corresponding threaded holes are machined on both the mounting plate 600 and the lifting mechanism 130, and anti-loosening nuts or spring washers are provided to prevent the bolts from loosening during equipment operation. Quick-release clamps allow for rapid disassembly and installation of the mounting plate 600, facilitating maintenance, replacement, or adjustment of the air blowing mechanism 200 and the laser detection device 300.

[0067] In some examples, the main board 141 and the lifting mechanism 130 are connected by bolts and locating pins. Several mounting screw holes are machined on the upper surface of the main board 141, corresponding to the mounting positions of the lifting mechanism 130. Operators can adjust the height of the main board 141 through different screw holes according to the actual site layout. The first locking block 142 and the second locking block are also detachably mounted on the main board 141 using bolts or locating pins. This method not only allows for adjustment of the positions of the first locking block 142 and the second locking block 143 to facilitate engagement with the protrusions 401 on the template, but also facilitates the disassembly and maintenance of the first locking block 142 and the second locking block 143.

[0068] Example 2

[0069] As shown in Figure 8, the blowing mechanism 200 and the locking piece 140 in another embodiment of the present invention are shown. The technical solution is largely the same as that in Embodiment 1, so only the differences are described.

[0070] In some examples, the air blowing mechanism 200 can increase the air blowing area by oscillating, facilitating thorough cleaning of the connection surface between the template and the molding machine or the connection surface between the molding machine and the template. The oscillation of the air blowing mechanism 200 can be driven by a servo motor. The air blowing mechanism 200 includes a support plate 210, which is rotatably mounted on the mounting plate 600, and the axis of rotation of the support plate 210 is perpendicular to the template plane; there are several air outlet pipes 220, which are located at the end of the support plate 210 away from the axis of rotation, and the several air outlet pipes 220 are radially distributed along the plane of the support plate 210.

[0071] The arrangement of the support plate 210 and the air outlet pipe 220 allows the air outlet pipe 220 to be mounted on the mounting plate 600 in an eccentric rotation manner. Combined with the radial distribution of the air outlet pipe 220, the blowing area is further increased, thus enhancing the cleaning effect.

[0072] In some examples, the first card block 142 and / or the second card block 143 are rotatably mounted on the main board 141, and the rotation axis of the first card block 142 and / or the second card block 143 is parallel to the rotation axis of the air blowing mechanism 200.

[0073] The first locking block 142 and the second locking block 143 are also driven to rotate by a servo motor. The first locking block 142 and the second locking block 143 can lift the template from below by rotating, thus omitting the overall descent and lifting action of the lifting plate, reducing the load on the drive device and saving more energy.

[0074] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A template changing device for a molding machine, used for changing templates inside a molding machine, characterized in that, include: A movable device (100) is movably disposed on one side of the molding machine; a clamp (140) is disposed on the movable device (100) and is used to engage with the template; an air blowing mechanism (200) is disposed on the movable device (100) and is configured such that after the air blowing mechanism (200) blows air onto the template connecting surface inside the molding machine, the clamp (140) clamps the template and connects it to the molding machine.

2. The molding machine template changing device according to claim 1, characterized in that, The air blowing mechanism (200) is located above the card (140).

3. The molding machine template changing device according to claim 1, characterized in that, It also includes: a laser detection device (300), which is disposed on the mobile device (100). The laser detection device (300) is located on one side of the air blowing mechanism (200). The laser detection device (300) is used to detect whether there is a template on the card (140) or whether there is a template that has not been removed on the molding machine.

4. The molding machine template changing device according to claim 1, characterized in that, The card (140) includes: a main board (141) disposed on the side of the moving device (100) near the molding machine; a first card block (142) disposed on the main board (141), the first card block (142) having an upward-facing first card slot (1421) at its top, the first card slot (1421) being used to support a mushroom-shaped protrusion (401) on the template; and a second card block (143) disposed on the main board (141), the second card block (143) being located below the first card block (142), the second card block (143) having an upward-facing second card slot (1431) at its top, the second card slot (1431) being used to support another protrusion (401) on the same template.

5. A molding machine template changing device according to claim 4, characterized in that, The card (140) further includes a limiting plate (144), which is slidably disposed on the main board (141). After the limiting plate (144) can slide close to the first card slot (1421) and / or the second card slot (1431), the limiting plate (144) and the first card slot (1421) or the second card slot (1431) form a limiting space (145), which is used to prevent the protrusion (401) from falling off.

6. A molding machine template changing device according to claim 1, characterized in that, Also includes: The template conveying device (500) is movable relative to the moving device (100). After the template conveying device (500) moves, it approaches or moves away from the moving device (100). The template conveying device (500) is used to convey templates.

7. A molding machine template changing device according to claim 3, characterized in that, Also includes: The mounting plate (600) is detachably mounted on the top of the mobile device (100), and the air blowing mechanism (200) and the laser detection device (300) are both mounted on the mounting plate (600).

8. A molding machine template changing device according to claim 4, characterized in that, The motherboard (141) is detachably connected to the mobile device (100), and the first card block (142) and the second card block (143) are both detachably connected to the motherboard (141).

9. A molding machine template changing device according to claim 7, characterized in that, The air blowing mechanism (200) includes: a support plate (210) rotatably mounted on the mounting plate (600), the rotation axis of the support plate (210) being perpendicular to the template plane; and several air outlet pipes (220) disposed at one end of the support plate (210) away from the rotation axis, with the several air outlet pipes (220) radially distributed along the plane of the support plate (210).

10. A molding machine template changing device according to claim 4, characterized in that, The first card block (142) and / or the second card block (143) are rotatably mounted on the main board (141), and the rotation axis of the first card block (142) and / or the second card block (143) is parallel to the rotation axis of the air blowing mechanism (200).

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