Hoisting device for hard alloy mold replacement and operation method

Abstract

The invention provides a hoisting device for replacing a hard alloy mold and an operation method, and belongs to the technical field of mold machining, the hoisting device comprises a hoisting table, the hoisting table comprises a bottom plate and a top plate, a traction mechanism is arranged on the hoisting table, and the traction mechanism comprises two fixed pulleys, a winding wheel, a first motor and a traction rope; a hoisting clamp is mounted at the tail end of the traction rope; the hoisting clamp comprises a fixing plate, a sliding groove, a first two-way lead screw rotationally connected into the sliding groove, two first nut bases symmetrically connected to the first two-way lead screw in a sliding mode, a second motor connected with the first two-way lead screw and two clamping jaws installed on the two first nut bases correspondingly. The hard alloy mold can be stably clamped through the hoisting clamp, lifting of the hoisting clamp and the alloy mold can be completed through the traction mechanism, hoisting of the alloy mold is completed, excessive manual operation is not needed, the installation efficiency is high, and safety is higher.

Description

Technical Field

[0001] The invention mainly relates to the technical field of mold processing, and in particular to a hoisting device for replacing a cemented carbide mold and an operating method thereof. Background Art

[0002] The lifespan of cemented carbide molds is dozens of times that of steel molds. Cemented carbide molds have high hardness, high strength, corrosion resistance, high temperature resistance and small expansion coefficient. They are generally made of tungsten-cobalt cemented carbide.

[0003] The quality of the cemented carbide mold itself is high, but it is time-consuming and laborious to install without external force. At the same time, the installation efficiency is low, and it is easy for the staff to lose strength after working for a long time, which may cause danger. Summary of the invention

[0004] The present invention mainly provides a lifting device and an operating method for replacing a cemented carbide mold to solve the technical problems raised in the above-mentioned background technology.

[0005] The technical solution adopted by the present invention to solve the above technical problems is:

[0006] A lifting device for replacing a cemented carbide mold, comprising a lifting platform, the lifting platform comprising a bottom plate and a top plate, a traction mechanism being arranged on the lifting platform, the traction mechanism comprising two fixed pulleys mounted at the front and rear ends of the top plate, a winding wheel mounted on the bottom plate, a first motor connected to the winding wheel, and a traction rope having one end wound around the winding wheel and passing through the tops of the two fixed pulleys;

[0007] A lifting clamp is installed at the end of the traction rope, and the lifting clamp includes a fixed plate, a sliding groove arranged on the fixed plate, a first bidirectional screw rod rotatably connected in the sliding groove, two first nut seats symmetrically slidably connected to the first bidirectional screw rod, a second motor connected to the first bidirectional screw rod, and two clamping claws respectively installed on the two first nut seats.

[0008] Preferably, in the present invention, the hoisting platform further comprises a plurality of support plates, and the plurality of support plates are respectively installed on both sides between the bottom plate and the top plate.

[0009] Preferably, in the present invention, the bottom plate is a U-shaped frame plate structure.

[0010] Preferably, in the present invention, counterweight blocks are installed on both sides of the top of the front end of the bottom plate, and the counterweight blocks are fixed by U-shaped buckles on the bottom plate.

[0011] Preferably, in the present invention, a loop rope is installed at the end of the traction rope, and fixing buckles are provided on both sides of the back side of the fixing plate, and the loop rope passes through the inside of the two fixing buckles.

[0012] Preferably, in the present invention, guide rods connected to the top plate are installed on both sides of the bottom plate, and transverse plates are provided on both sides of the fixed plate, and the transverse plates are slidably located on the guide rods.

[0013] Preferably, in the present invention, universal wheels are installed at the four corners of the bottom of the base plate.

[0014] Preferably, in the present invention, the clamping jaw is an L-shaped structure, and the clamping jaw is connected to the first nut seat through four fixing bolts.

[0015] Preferably, in the present invention, a hidden groove located at the bottom of the sliding groove and perpendicular to the sliding groove is provided on the fixed plate, and the lifting fixture also includes a second bidirectional screw rod rotatably connected in the hidden groove, two second nut seats symmetrically and slidably installed on the second bidirectional screw rod, a third motor connected to the second bidirectional screw rod, and two limiting blocks respectively installed on the two second nut seats.

[0016] The operation method of any of the above-mentioned lifting devices for replacing cemented carbide molds comprises the following steps:

[0017] Step 1: First, the hoisting platform is transported to a suitable position, and then the alloy mold is attached to the fixed plate, and then the second motor is started to rotate the first bidirectional screw rod, so that the first screw nut seat drives the two clamping claws to clamp the alloy mold inward;

[0018] Step 2: The third motor operates, so that the second nut seat drives the limiting block to approach inward and press against the side of the mold to limit the side of the mold;

[0019] Step 3: The first motor operates to make the reel reel up the traction rope, so that the lifting fixture drives the alloy mold to rise to a suitable height, and then the device is transported to a suitable position, and the lifting fixture releases the clamp.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention can stably clamp the cemented carbide mold through the lifting fixture, and can transport the device and the alloy mold through the lifting platform and the bottom universal wheels, which is convenient for adjusting the position; the lifting fixture and the alloy mold can be lifted and lowered through the traction mechanism, and the alloy mold can be lifted without excessive manual operation, with high installation efficiency and higher safety.

[0022] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention from a first viewing angle;

[0024] Figure 2 It is a schematic diagram of the overall structure of the present invention from a second viewing angle;

[0025] Figure 3 It is a schematic diagram of the bottom surface of the lifting fixture structure of the present invention from a first viewing angle;

[0026] Figure 4 It is a schematic diagram of the bottom surface of the lifting fixture structure of the present invention from a second viewing angle;

[0027] Figure 5 It is a schematic diagram of the top surface of the lifting fixture structure of the present invention;

[0028] Figure 6 It is a schematic diagram of the traction mechanism structure of the present invention.

[0029] In the figure: 10, lifting platform; 11, bottom plate; 12, top plate; 13, support plate; 20, lifting fixture; 21, fixed plate; 211, sliding groove; 212, hidden groove; 213, fixing buckle; 214, cross plate; 22, first bidirectional screw rod; 23, first nut seat; 24, second motor; 25, clamping claw; 26, second bidirectional screw rod; 27, second nut seat; 28, third motor; 29, limiting block; 30, traction mechanism; 31, traction rope; 32, winding wheel; 33, fixed pulley; 34, first motor; 35, rope; 40, universal wheel; 50, counterweight; 60, guide rod. DETAILED DESCRIPTION

[0030] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0031] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0033] An embodiment of the present application provides a hoisting device for replacing a cemented carbide mold, including a hoisting platform 10, the hoisting platform 10 includes a bottom plate 11 and a top plate 12, a traction mechanism 30 is provided on the hoisting platform 10, the traction mechanism 30 includes two fixed pulleys 33 installed at the front and rear ends of the top plate 12, a winding wheel 32 installed on the bottom plate 11, a first motor 34 connected to the winding wheel 32, and a traction rope 31 with one end wound around the winding wheel 32 and passing through the tops of the two fixed pulleys 33.

[0034] A lifting clamp 20 is installed at the end of the traction rope 31, and the lifting clamp 20 includes a fixed plate 21, a sliding groove 211 arranged on the fixed plate 21, a first bidirectional screw rod 22 rotatably connected in the sliding groove 211, two first nut seats 23 symmetrically slidably connected to the first bidirectional screw rod 22, a second motor 24 connected to the first bidirectional screw rod 22, and two clamping claws 25 respectively installed on the two first nut seats 23.

[0035] It should also be noted that the electrical components of this device are all electrically connected to a conventional PLC controller.

[0036] For details, please refer to the attached Figure 1 The hoisting platform 10 further includes a plurality of support plates 13 , which are respectively installed on both sides between the bottom plate 11 and the top plate 12 .

[0037] It should be noted that, in this embodiment, the connection between the bottom plate 11 and the top plate 12 can be completed by a plurality of support plates 13 , and at the same time, the plurality of support plates 13 are hollowed out to reduce the weight of the device.

[0038] For details, please refer to the attached Figure 1 The bottom plate 11 is a U-shaped frame plate structure.

[0039] It should be noted that, in the present embodiment, the alloy mold can be placed in the middle space of the bottom plate 11 of the U-shaped frame plate, so that the hoisting clamp 20 can clamp the alloy mold.

[0040] For details, please refer to the attached Figure 2 Counterweight blocks 50 are installed on both sides of the top of the front end of the bottom plate 11, and the counterweight blocks 50 are fixed by U-shaped buckles on the bottom plate 11.

[0041] It should be noted that, in this embodiment, the weight of the front end of the device can be increased by the counterweight block 50 to prevent the device from tipping over due to the weight being biased backward when hoisting the alloy mold, thereby causing danger.

[0042] For details, please refer to the attached Figure 2 A loop rope 35 is installed at the end of the traction rope 31, and fixing buckles 213 are arranged on both sides of the back side of the fixing plate 21, and the loop rope 35 passes through the inside of the two fixing buckles 213.

[0043] It should be noted that, in this embodiment, by providing the loop rope 35 and the fixing buckle 213 , the hoisting clamp 20 can be made more horizontal and stably clamp the alloy mold.

[0044] For details, please refer to the attached Figure 2 Guide rods 60 connected to the top plate 12 are installed on both sides of the bottom plate 11, and transverse plates 214 are arranged on both sides of the fixed plate 21. The transverse plates 214 are located on the guide rods 60 and slide.

[0045] It should be noted that, in this embodiment, the lifting fixture 20 is further restricted by the guide rod 60 and the transverse plate 214 , thereby ensuring that the lifting fixture 20 can be lifted and lowered stably.

[0046] For details, please refer to the attached Figure 1 Universal wheels 40 are installed at the four corners of the bottom of the bottom plate 11.

[0047] It should be noted that, in this embodiment, the device can be conveniently transported to a suitable location via the universal wheels 40 .

[0048] For details, please refer to the attached Figure 3 The clamping jaw 25 is an L-shaped structure, and the clamping jaw 25 is connected to the first nut seat 23 through four fixing bolts.

[0049] It should be noted that, in this embodiment, the L-shaped clamping jaws 25 can clamp and support the bottom of the alloy mold to prevent the alloy mold from falling off in the clamped state.

[0050] For details, please refer to the attached Figure 4 A dark groove 212 located at the bottom of the sliding groove 211 and perpendicular to it is provided on the fixed plate 21. The lifting fixture 20 also includes a second bidirectional screw rod 26 rotatably connected in the dark groove 212, two second nut seats 27 symmetrically slidably mounted on the second bidirectional screw rod 26, a third motor 28 connected to the second bidirectional screw rod 26, and two limiting blocks 29 respectively mounted on the two second nut seats 27.

[0051] It should be noted that, in this embodiment, the second bidirectional screw 26 can be rotated by the operation of the third motor 28, so that the two second nut seats 27 drive the two limiting blocks 29 to operate inward synchronously, thereby limiting the two sides of the mold to prevent the mold from sliding from both sides and causing danger.

[0052] The operation method of any of the above-mentioned lifting devices for replacing cemented carbide molds comprises the following steps:

[0053] Step 1: First, the hoisting platform 10 is transported to a suitable position, and then the alloy mold is attached to the fixing plate 21, and then the second motor 24 is started to rotate the first bidirectional screw rod 22, so that the first screw nut seat 23 drives the two clamping claws 25 to clamp the alloy mold inwardly;

[0054] Step 2: The third motor 28 operates, so that the second nut holder 27 drives the limiting block 29 to approach the side of the mold inwardly to limit the side of the mold;

[0055] Step three: The first motor 34 operates to make the winding wheel 32 wind up the traction rope 31, so that the lifting fixture 20 drives the alloy mold to rise to a suitable height, and then the device is transported to a suitable position, and the lifting fixture 20 releases the clamping.

[0056] The above is an exemplary description of the present invention in combination with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A lifting device for replacing a cemented carbide mold, comprising a lifting platform (10), characterized in that: The hoisting platform (10) comprises a bottom plate (11) and a top plate (12); a traction mechanism (30) is arranged on the hoisting platform (10); the traction mechanism (30) comprises two fixed pulleys (33) installed at the front and rear ends of the top plate (12), a winding wheel (32) installed on the bottom plate (11), a first motor (34) connected to the winding wheel (32), and a traction rope (31) with one end wound around the winding wheel (32) and passing through the tops of the two fixed pulleys (33); A lifting fixture (20) is installed at the end of the traction rope (31), and the lifting fixture (20) includes a fixing plate (21), a sliding groove (211) arranged on the fixing plate (21), a first bidirectional screw rod (22) rotatably connected in the sliding groove (211), two first nut seats (23) symmetrically slidably connected to the first bidirectional screw rod (22), a second motor (24) connected to the first bidirectional screw rod (22), and two clamping claws (25) respectively installed on the two first nut seats (23).

2. The lifting device for replacing cemented carbide mold according to claim 1, characterized in that: The hoisting platform (10) further comprises a plurality of support plates (13), wherein the plurality of support plates (13) are respectively installed on both sides between the bottom plate (11) and the top plate (12).

3. The lifting device for replacing cemented carbide mold according to claim 1, characterized in that: The bottom plate (11) is a U-shaped frame plate structure.

4. The lifting device for replacing cemented carbide mold according to claim 1, characterized in that: Counterweight blocks (50) are installed on both sides of the top of the front end of the bottom plate (11), and the counterweight blocks (50) are fixed by U-shaped buckles on the bottom plate (11).

5. The lifting device for replacing cemented carbide mold according to claim 1, characterized in that: A loop rope (35) is installed at the end of the traction rope (31), and fixing buckles (213) are arranged on both sides of the back side of the fixing plate (21), and the loop rope (35) passes through the inside of the two fixing buckles (213).

6. The lifting device for replacing cemented carbide mold according to claim 1, characterized in that: Guide rods (60) connected to the top plate (12) are installed on both sides of the bottom plate (11), and transverse plates (214) are arranged on both sides of the fixed plate (21), and the transverse plates (214) are located on the guide rods (60) and slide.

7. The lifting device for replacing cemented carbide mold according to claim 1, characterized in that: Universal wheels (40) are installed at the four corners of the bottom of the base plate (11).

8. The lifting device for replacing cemented carbide mold according to claim 1, characterized in that: The clamping jaw (25) is an L-shaped structure, and the clamping jaw (25) is connected to the first nut seat (23) via four fixing bolts.

9. The lifting device for replacing cemented carbide mold according to claim 1, characterized in that: The fixing plate (21) is provided with a concealed groove (212) located at the bottom of the sliding groove (211) and perpendicular thereto. The lifting fixture (20) further comprises a second bidirectional screw rod (26) rotatably connected in the concealed groove (212), two second nut seats (27) symmetrically slidably mounted on the second bidirectional screw rod (26), a third motor (28) connected to the second bidirectional screw rod (26), and two limiting blocks (29) respectively mounted on the two second nut seats (27).

10. The operating method used by the lifting device for replacing cemented carbide molds according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: First, the hoisting platform (10) is transported to a suitable position, and then the alloy mold is attached to the fixing plate (21), and then the second motor (24) is started to rotate the first bidirectional screw rod (22), so that the first screw nut seat (23) drives the two clamping claws (25) to clamp the alloy mold inwardly; Step 2: The third motor (28) operates, so that the second nut seat (27) drives the limiting block (29) to move inwards and against the side of the mold, thereby limiting the side of the mold; Step three: The first motor (34) operates to cause the reel (32) to reel in the traction rope (31), so that the hoisting fixture (20) drives the alloy mold to rise to a suitable height, and then the device is transported to a suitable position, and the hoisting fixture (20) is then released.

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