Casting machine speed measuring device

Abstract

The utility model discloses a speed measuring device for a casting machine, which comprises a connecting piece, a mounting plate, an outer casing, a digital belt, a winding component and a driving piece, and the connecting piece can move together with a lifting plate; the outer cover shell is arranged on the mounting plate, a display window is formed in the outer cover shell, and gradually-changing numbers are arranged on the surface of the number belt at intervals in the length direction of the number belt; the two winding assemblies are arranged in the outer housing in parallel at intervals, and the display window is located between the two winding assemblies; the two ends of the number belt are wound around the two winding assemblies respectively, and the winding assemblies can automatically wind the number belt. And one end of the driving piece is connected to the connecting piece, the other end of the driving piece extends into the outer cover shell and abuts against the number belt, and when the connecting piece ascends and descends once along with the lifting plate, the driving piece can drive the number belt to intermittently slide once in the same direction. The speed measuring device for the casting machine can be used for conveniently measuring the speed of the injection machine.

Description

Technical Field

[0001] The utility model relates to the field of casting machine equipment, in particular to a casting machine speed measuring device. Background Art

[0002] Die casting is a manufacturing process that uses pressure to spray liquid metal into a reusable mold, which is then cooled and formed to produce metal parts with complex shapes. The main raw material for aluminum alloy die casting is aluminum alloy ingots. The molten aluminum alloy solution is fed into the mold cavity by high pressure, and then cooled under pressure to form aluminum alloy parts with fixed shapes. This process is very suitable for modern large-scale production of widely used metal parts, and has relatively mature production and post-processing processes. It can produce perfect and complex metal parts. The die casting process involves the use of furnaces, metals, die casting machines and molds.

[0003] In die casting, there are two different concepts of die casting speed: injection speed and filling speed. Injection speed refers to the speed of the injection head during the die casting process. It is divided into slow injection and fast injection. Generally speaking, slow speed is generally 0.1-0.5M / S, while fast speed is generally 0.1-1.1M / S. The thinner the wall thickness of the casting, the faster the injection speed; the more complex the shape of the casting, the faster the injection speed, the larger the protruding surface of the casting, the faster the injection speed, the longer the casting path, and the faster the injection speed.

[0004] It can be seen that the injection speed has a great impact on the quality of the product. Most domestic semi-continuous casting machines use hydraulic casting. Its injection speed is achieved through a speed measuring device on a hydraulic pump station. The principle is to convert the flow rate of the hydraulic oil through it into an electrical signal. The advantage of this speed measuring device is that it has a sensitive speed measurement response, but it is expensive, has large instantaneous speed fluctuations, and is greatly affected by system pressure. In addition, when the hydraulic pipeline leaks oil, the speed measurement is inaccurate. Utility Model Content

[0005] In view of the deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a casting machine speed measuring device which can conveniently measure the speed of the injection molding machine.

[0006] In order to achieve the above object, the utility model is implemented through the following technical scheme: a casting machine speed measuring device, comprising:

[0007] A connecting member, which is arranged on a lifting plate of the casting machine and can move together with the lifting plate;

[0008] A mounting plate, mounted close to the lifting plate of the casting machine;

[0009] An outer cover shell is arranged on the mounting plate and has a display window;

[0010] A digital belt, wherein gradually changing numbers are arranged at intervals along the length of the digital belt, and one of the numbers can be observed through the display window;

[0011] There are two winding assemblies, the two winding assemblies are arranged in parallel and spaced apart in the outer shell, and the display window is located between the two winding assemblies; the two ends of the digital tape are respectively wound on the two winding assemblies, and the winding assemblies can automatically reel up the digital tape; and

[0012] A driving member has one end connected to the connecting member and the other end extending into the outer cover shell to abut against the digital belt. Each time the connecting member is lifted and lowered along with the lifting plate, the driving member can drive the digital belt to slide intermittently in the same direction.

[0013] Furthermore, the driving member comprises a mounting shaft, a first ratchet disc, a second ratchet disc, a driving rod, a pawl and a first elastic member, the first ratchet disc is a one-way ratchet disc, the mounting shaft is fixed to the mounting plate, the first ratchet disc is rotatably arranged between the two winding assemblies and parallel to the two winding assemblies through the mounting shaft, and the first ratchet disc is located on the back of the digital belt, and the digital belt is provided with a plurality of insertion holes at intervals along its length direction, when the first ratchet disc rotates clockwise, the ratchet teeth of the first ratchet disc are rectangular and can be sequentially inserted into the corresponding insertion holes, and when the first ratchet disc rotates counterclockwise, the ratchet teeth of the first ratchet disc slide along the lower surface of the digital belt;

[0014] The second ratchet disc is coaxially arranged with the first ratchet disc and fixedly connected to the first ratchet disc; a through hole is arranged on the outer cover shell, one end of the driving rod is rotatably connected to the mounting shaft, and the other end passes through the through hole, and during the operation of the connecting member, the driving rod can be driven to rotate once;

[0015] One end of the first elastic member is connected to the outer cover shell, and the other end is connected to the top of the driving rod; one end of the pawl is hinged to the middle of the driving rod, and the other end of the pawl abuts against a ratchet tooth of the second ratchet disc.

[0016] Furthermore, the driving member also includes a pressing member, wherein there are two pressing members, and the two pressing members are arranged in the outer cover shell and are respectively located on both sides of the driving rod to press the digital belt downward toward the first ratchet disk.

[0017] Furthermore, the pressing member includes a second elastic member and a pressing plate, the pressing plate is connected to the outer cover shell via the second elastic member, and the pressing plate is pressed on the digital belt.

[0018] Furthermore, the winding assembly includes a winding shaft and an elastic belt, the two winding shafts are arranged at an interval, both ends of the digital belt are connected to the elastic belt, and the two elastic belts are respectively wound on the two winding shafts.

[0019] Beneficial effects of the utility model:

[0020] When the above casting machine speed measuring device is used, the lifting plate and the injection punch are started synchronously. The lifting plate drives the connecting part to lift during the lifting process. The connecting part causes the driving part to drive the digital belt to slide intermittently in the same direction once, thereby increasing the number on the digital belt by one number. After one or more liftings, the end number is subtracted from the start number, which is the number of round trips. The number of round trips multiplied by the round trip distance can be used to obtain the total distance the lifting plate has moved. Subsequently, the distance is divided by the time taken to obtain the average speed of the lifting plate. When the average speed is consistent with the normal number, it means that the equipment is operating normally. When the average speed is less than the normal number, it indicates oil leakage or other faults. By using this casting machine speed measuring device, no electrical signal is required, and the influence of instantaneous fluctuations can be avoided. The average running speed of the injection head can be conveniently measured, thereby determining whether the casting machine has a fault. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation of the utility model, the following will briefly introduce the drawings required for use in the specific implementation. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0022] Figure 1 A schematic diagram of a casting machine speed measuring device provided by one embodiment of the utility model;

[0023] Figure 2 for Figure 1 A schematic diagram of a driving member in a casting machine speed measuring device is shown;

[0024] Figure 3 for Figure 1 A schematic diagram of a pressing member in a casting machine speed measuring device is shown;

[0025] Reference numerals:

[0026] 100, lifting plate; 200, connecting member; 300, mounting plate; 400, outer cover shell; 500, digital belt; 600, winding assembly; 610, winding shaft; 620, elastic belt; 700, driving member; 710, mounting shaft; 720, first ratchet disc; 730, second ratchet disc; 740, driving rod; 750, pawl; 760, first elastic member; 770, pressing member; 771, second elastic member; 772, pressing plate. DETAILED DESCRIPTION

[0027] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0028] See also Figures 1 to 3 The utility model provides a casting machine speed measuring device, comprising a connecting member 200, a mounting plate 300, an outer cover shell 400, a digital belt 500, a winding assembly 600 and a driving member 700. The connecting member 200 is arranged on the lifting plate 100 of the casting machine and can move together with the lifting plate 100. The mounting plate 300 is installed close to the lifting plate 100 of the casting machine. The outer cover shell 400 is arranged on the mounting plate 300, and a display window is opened on the mounting plate 300. The digital belt 500 can be bent and deformed, and the surface of the digital belt 500 is provided with gradually changing numbers at intervals along its length direction, and one of the numbers can be observed through the display window.

[0029] There are two winding assemblies 600, which are arranged in parallel and spaced apart in the outer shell 400, and the display window is located between the two winding assemblies 600. The two ends of the digital tape 500 are respectively wound on the two winding assemblies 600, and the winding assemblies 600 can automatically reel up the digital tape 500. One end of the driving member 700 is connected to the connecting member 200, and the other end extends into the outer shell 400 to abut against the digital tape 500. When the connecting member 200 is lifted and lowered once with the lifting plate 100, the driving member 700 can drive the digital tape 500 to slide intermittently once in the same direction.

[0030] When in use, the lifting plate 100 and the injection punch are started synchronously, and the lifting plate 100 drives the connecting member 200 to rise and fall during the lifting process. The connecting member 200 causes the driving member 700 to drive the digital belt 500 to slide intermittently in the same direction once, thereby increasing the number on the digital belt 500 by one number. After one or more liftings, the end number is subtracted from the start number to get the number of round trips. The number of round trips multiplied by the round trip distance can be obtained to get the total distance moved by the lifting plate 100. Then, the distance is divided by the time taken to get the average speed of the lifting plate 100. When the average speed is consistent with the normal number, it means that the equipment is operating normally. When the average speed is less than the normal number, it means oil leakage or other faults.

[0031] Specifically, the driving member 700 includes a mounting shaft 710, a first ratchet disc 720, a second ratchet disc 730, a driving rod 740, a pawl 750 and a first elastic member 760. The first ratchet disc 720 is a one-way ratchet disc. The mounting shaft 710 is fixed to the mounting plate 300. The first ratchet disc 720 is rotatably arranged between the two winding assemblies 600 and is parallel to the two winding assemblies 600 through the mounting shaft 710, and the first ratchet disc 720 is located on the back of the digital belt 500. The digital belt 500 is provided with a plurality of insertion holes at intervals along its length direction. When the first ratchet disc 720 rotates clockwise, the ratchet teeth of the first ratchet disc 720 are rectangular and can be sequentially inserted into the corresponding insertion holes. When the first ratchet disc 720 rotates counterclockwise, the ratchet teeth of the first ratchet disc 720 slide along the lower surface of the digital belt 500.

[0032] The second ratchet disc 730 is coaxially arranged with the first ratchet disc 720 and fixedly connected with the first ratchet disc 720; a through hole is provided on the outer cover shell 400, one end of the driving rod 740 is rotatably connected to the mounting shaft 710, and the other end passes through the through hole, and during the operation of the connecting member 200, the driving rod 740 can be driven to rotate once.

[0033] One end of the first elastic member 760 is connected to the outer cover shell 400 , and the other end is connected to the top of the driving rod 740 ; one end of the pawl 750 is hinged to the middle of the driving rod 740 , and the other end of the pawl 750 abuts against a ratchet tooth of the second ratchet disc 730 .

[0034] When in use, during the lifting and lowering process of the lifting plate 100, the driving rod 740 can be toggled to rotate, thereby driving the pawl 750 to rotate, and the pawl 750 can be used to toggle the second ratchet disc 730 to rotate. Since the first ratchet disc 720 is connected to the second ratchet disc 730, the first ratchet disc 720 can be driven to rotate. When the first ratchet disc 720 rotates clockwise, the number belt 500 can be toggled to move one grid. On the contrary, when the driven first ratchet disc 720 rotates clockwise, the number belt 500 cannot be driven to move. Then, the purpose of changing the number by one grid per round trip is achieved.

[0035] As a preferred embodiment, the driving member 700 further includes a clamping member 770 , two clamping members 770 , which are disposed in the outer cover shell 400 and are respectively located on both sides of the driving rod 740 , pressing the digital belt 500 downward toward the first ratchet disk 720 .

[0036] Specifically, the pressing member 770 includes a second elastic member 771 and a pressing plate 772. The pressing plate 772 is connected to the outer housing 400 through the second elastic member 771, and the pressing plate 772 is pressed on the digital tape 500.

[0037] The pressing plate 772 allows the number belt 500 to always be in contact with the first ratchet disc 720 , and the first ratchet disc 720 prevents the driving rod 740 from idling when rotating clockwise, thereby ensuring the accuracy of the numbers.

[0038] In addition, in this embodiment, the winding assembly 600 includes a winding shaft 610 and an elastic belt 620. The two winding shafts 610 are arranged at an interval. Both ends of the digital belt 500 are connected to the elastic belt 620. The two elastic belts 620 are respectively wound on the two winding shafts.

[0039] With this arrangement, when the digital tape 500 is moved, the elastic tape 620 keeps the digital tape 500 tightly wound on the winding shaft 610, thereby preventing the digital tape 500 from loosening.

[0040] The use of the casting machine speed measuring device is as follows:

[0041] When in use, the lifting plate 100 and the injection punch are started synchronously. During one stroke of the lifting plate 100, the connecting member 200 toggles the driving rod 740, thereby driving the number belt 500 to slide intermittently in the same direction once, thereby increasing the number on the number belt 500 by one number. After one or more liftings, the end number is subtracted from the start number to get the number of round trips. The number of round trips multiplied by the round trip distance can be obtained to get the total distance moved by the lifting plate 100. Then, the distance is divided by the time taken to get the average speed of the lifting plate 100. When the average speed is consistent with the normal number, it means that the equipment is operating normally. When the average speed is less than the normal number, it means oil leakage or other faults.

[0042] In this way, no electrical signal is required and the influence of instantaneous fluctuations can be avoided. The average running speed of the injection head can be conveniently measured to determine whether the casting machine has a fault.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A casting machine speed measuring device, characterized in that: include: A connecting member, which is arranged on a lifting plate of the casting machine and can move together with the lifting plate; A mounting plate, mounted close to the lifting plate of the casting machine; An outer cover shell is arranged on the mounting plate and has a display window; A digital belt, wherein gradually changing numbers are arranged at intervals along the length of the digital belt, and one of the numbers can be observed through the display window; There are two winding assemblies, the two winding assemblies are arranged in parallel and spaced apart in the outer shell, and the display window is located between the two winding assemblies; the two ends of the digital tape are respectively wound on the two winding assemblies, and the winding assemblies can automatically reel up the digital tape; and A driving member has one end connected to the connecting member and the other end extending into the outer cover shell to abut against the digital belt. Each time the connecting member is lifted and lowered along with the lifting plate, the driving member can drive the digital belt to slide intermittently in the same direction.

2. The casting machine speed measuring device according to claim 1, characterized in that: The driving member includes a mounting shaft, a first ratchet disc, a second ratchet disc, a driving rod, a pawl and a first elastic member, the first ratchet disc is a one-way ratchet disc, the mounting shaft is fixed to the mounting plate, the first ratchet disc is rotatably arranged between the two winding assemblies and parallel to the two winding assemblies through the mounting shaft, and the first ratchet disc is located on the back of the digital belt, and the digital belt is provided with a plurality of insertion holes at intervals along its length direction, when the first ratchet disc rotates clockwise, the ratchet teeth of the first ratchet disc are rectangular and can be sequentially inserted into the corresponding insertion holes, and when the first ratchet disc rotates counterclockwise, the ratchet teeth of the first ratchet disc slide along the lower surface of the digital belt; The second ratchet disc is coaxially arranged with the first ratchet disc and fixedly connected to the first ratchet disc; a through hole is arranged on the outer cover shell, one end of the driving rod is rotatably connected to the mounting shaft, and the other end passes through the through hole, and during the operation of the connecting member, the driving rod can be driven to rotate once; One end of the first elastic member is connected to the outer cover shell, and the other end is connected to the top of the driving rod; one end of the pawl is hinged to the middle of the driving rod, and the other end of the pawl abuts against a ratchet tooth of the second ratchet disc.

3. The casting machine speed measuring device according to claim 2, characterized in that: The driving member also includes a pressing member, wherein two pressing members are arranged in the outer cover shell and are respectively located on both sides of the driving rod to press the digital belt downward toward the first ratchet disk.

4. The casting machine speed measuring device according to claim 3, characterized in that: The pressing member includes a second elastic member and a pressing plate. The pressing plate is connected to the outer cover shell via the second elastic member, and the pressing plate is pressed on the digital belt.

5. The casting machine speed measuring device according to claim 1, characterized in that: The winding assembly comprises a winding shaft and an elastic belt, the two winding shafts are arranged at an interval, both ends of the digital belt are connected to the elastic belt, and the two elastic belts are respectively wound on the two winding shafts.

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