Automatic oiling device for punching and forming machine die

Abstract

The utility model relates to the technical field of punching and pasting machine, concretely relates to a punching and pasting machine mould automatic oiling device, including punching and pasting machine body, the inside of punching and pasting machine body is provided with support frame, the shape of support frame is inverted L shape, the top fixed mounting of support frame has telescopic pneumatic cylinder, the output of telescopic pneumatic cylinder penetrates the bottom of support frame and is fixedly connected with upper fixed block, the bottom fixed connection of upper fixed block has punch, the lateral wall fixed connection of support frame has lower fixed block, the top of lower fixed block is equipped with mould through slot, lower fixed block and mould through slot are on the same horizontal plane. Compared with prior art, the present application does not need manual oiling through automatic oiling mechanism, significantly reduces the wear and tear risk between punch and mould through slot due to local insufficient lubrication, prevents the occurrence of punch jamming and punching and pasting rubber edge and other defects, improves mould service life and product appearance quality.

Description

Technical Field

[0001] This utility model relates to the field of stamping machine technology, and in particular to an automatic oiling device for stamping machine molds. Background Technology

[0002] In fields such as flexible electronics and mobile phone manufacturing, adhesive tape, as a key functional auxiliary material, is often used for protection, shielding, insulation, or structural bonding. Its cutting and bonding processes typically rely on die-cutting machines. Most existing die-cutting machines employ a mold structure, achieving precise cutting of the adhesive tape through the high-frequency interaction between the punch and the mold slot. However, during this process, due to the tiny gap between the punch and the mold, and the wear caused by prolonged and repeated movement, the punch needs to be lubricated regularly to ensure smooth cutting, reduce mold wear, and prevent quality defects such as burrs and tears in the adhesive tape. Most machines still rely on manual lubrication of the punch using a syringe, a time-consuming and labor-intensive method that impacts the production capacity of the die-cutting machine.

[0003] In existing die-applied machines, lubrication of the die punches is typically done manually. Operators use a syringe to drip lubricant onto the punch surface. This method is not only cumbersome and time-consuming, increasing labor costs, but also lacks precise control, easily leading to uneven lubrication distribution. This results in one side of the punch being adequately lubricated while the other is insufficiently lubricated. Uneven lubrication also exacerbates wear between the punch and the die groove, shortening the die's lifespan. Furthermore, excessive localized friction can cause the adhesive tape edges to lift or adhere poorly during the die-applied process, creating burr defects that severely impact product appearance quality and yield, thus limiting the application of die-applied equipment in high-precision production environments. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose an automatic lubrication device for die-cutting machines, so as to solve the problems of cumbersome and time-consuming manual lubrication, which increases labor costs and is prone to uneven lubrication.

[0005] To achieve the above objectives, this utility model provides an automatic lubrication device for a die-cutting machine, comprising a die-cutting machine body, an internal support frame, the support frame being inverted L-shaped, a telescopic cylinder fixedly mounted on the top of the support frame, the output end of the telescopic cylinder penetrating the bottom of the support frame and fixedly connected to an upper fixing block, a punch fixedly connected to the bottom of the upper fixing block, a lower fixing block fixedly connected to the side wall of the support frame, a die through groove opened on the top of the lower fixing block, the lower fixing block and the die through groove being on the same horizontal plane, and a lubrication mechanism for lubricating the punch being provided on the side wall of the support frame.

[0006] Preferably, the refueling mechanism includes an oil storage tank fixedly connected to the side wall of the support frame. The top of the oil storage tank has an oil inlet, and the bottom of the oil storage tank is connected to a hollow tube. A hose is fixedly connected to the bottom end of the hollow tube, and a solenoid valve is fixedly connected inside the hollow tube. A flow meter for adjusting the oil flow rate inside the hollow tube is fixedly connected to the outer wall of the hollow tube. A timer is fixedly connected to the top of the punching machine body. One end of the hose is fixedly connected to an annular tube. The annular tube is fixedly connected to the bottom of the upper fixed block and is located on the outer wall of the punch. The inner wall of the annular tube is connected to four drip heads that are inclined towards the punch.

[0007] Preferably, the side wall of the oil tank is inlaid with glass for observing how much oil is left inside the tank.

[0008] Preferably, two fixing rods are fixedly connected between the top and bottom of the inner wall of the oil storage tank, a floating block is slidably connected between the outer walls of the two fixing rods, a pressing rod is fixedly connected to the bottom of the floating block, and a reflective strip is fixedly connected to the side wall of the pressing rod.

[0009] Preferably, an alarm button is fixedly connected to the bottom of the inner wall of the oil tank, a sealing mold for sealing the alarm button is fixedly connected to the bottom of the inner wall of the oil tank near the outer wall of the alarm button, and an alarm light is fixedly connected to the top of the oil tank.

[0010] Preferably, the outer wall of the oil inlet at the top of the oil tank is threaded with a rotating cover, and the outer wall of the rotating cover has an air inlet for air intake.

[0011] Preferably, a filter screen for filtering dust is fixedly connected to the outer wall of the air inlet.

[0012] Preferably, the timer and the solenoid valve are electrically connected.

[0013] Preferably, after the solenoid valve is activated, the oil in the oil tank will flow from top to bottom into the hollow tube and the hose. The hose will transport the oil into the annular tube and drip it onto the four surfaces of the punch by four drip heads.

[0014] Preferably, the alarm button and the pressing lever are on the same vertical line, and the weight of the pressing lever is greater than the force required to press the alarm button.

[0015] The beneficial effects of this utility model are:

[0016] 1. This automatic lubrication device for the die-cutting machine uses a timer on the die-cutting machine body to intelligently control the timing of lubrication. It automatically triggers lubrication within set time intervals, preventing lubrication loss due to human error, saving time and effort, and reducing labor costs. The solenoid valve is electrically connected to the timer. Upon receiving an opening signal, it controls the lubricating oil in the oil tank to flow into the hollow tube by gravity. A flow meter precisely adjusts the flow rate and oil volume, ensuring a stable and controllable lubrication amount each time. The lubricating oil is delivered via a hose to the annular tube at the bottom of the upper fixed block, and four drip heads on the inner wall of the annular tube drip onto the four sides of the punch, ensuring even coverage of the entire outer wall of the punch. This effectively solves the problem of uneven lubrication caused by traditional manual lubrication methods, significantly reducing the risk of wear between the punch and the die groove due to insufficient local lubrication, preventing punch jamming and defects such as rough edges on the applied adhesive tape, thereby improving die life and product appearance quality, and meeting the stability and consistency requirements of high-precision die-cutting processes for lubrication effects.

[0017] 2. This automatic lubrication device for the die-cutting machine uses two fixed rods inside the oil tank, with a floating block slidably connected between them. The floating block's responsiveness to oil level changes allows for real-time monitoring of the oil level. When the oil level drops to a set lower limit, the floating block moves downwards, and the pressing rod connected to its bottom presses down on an alarm button located at the bottom of the oil tank, covered by a sealing film. This triggers an alarm light on the top of the oil tank, effectively reminding the operator to add lubricating oil in time. This automatic alarm for insufficient oil prevents lubrication failure between the punch and the die groove due to lack of oil, avoiding problems such as equipment wear, poor cutting, or product scrap. It ensures the continuous and stable operation of the die-cutting equipment, improving production safety and equipment maintenance efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the overall planar structure of this utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of the punch and mold through-slot of this utility model;

[0022] Figure 4This is a three-dimensional structural diagram of the solenoid valve and flow meter of this utility model;

[0023] Figure 5 This is a three-dimensional structural diagram of the annular tube and drip head of this utility model;

[0024] Figure 6 This is a three-dimensional structural diagram of the floating block and alarm button of this utility model;

[0025] Figure 7 This utility model Figure 4 Enlarged 3D structural diagram at point A.

[0026] The diagram is marked as follows:

[0027] 1. Punching and pasting machine body; 2. Support frame; 3. Telescopic cylinder; 4. Upper fixing block; 5. Punch; 6. Lower fixing block; 7. Mold through slot; 8. Oil tank; 9. Hollow tube; 10. Hose; 11. Solenoid valve; 12. Flow meter; 13. Timer; 14. Ring pipe; 15. Oil drip head; 16. Glass; 17. Fixing rod; 18. Floating block; 19. Alarm button; 20. Sealing mold; 21. Rotating cover; 22. Air inlet; 23. Filter screen; 24. Pressing rod; 25. Alarm light. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0029] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0030] like Figures 1 to 7As shown, an automatic lubrication device for a punching and pasting machine mold includes a punching and pasting machine body 1. A support frame 2 is provided inside the punching and pasting machine body 1. The support frame 2 is in the shape of an inverted L. A telescopic cylinder 3 is fixedly installed on the top of the support frame 2. The output end of the telescopic cylinder 3 passes through the bottom of the support frame 2 and is fixedly connected to an upper fixing block 4. A punch 5 is fixedly connected to the bottom of the upper fixing block 4. A lower fixing block 6 is fixedly connected to the side wall of the support frame 2. A mold through groove 7 is opened on the top of the lower fixing block 6. The lower fixing block 6 and the mold through groove 7 are on the same horizontal plane. A lubrication mechanism for lubricating the punch 5 is provided on the side wall of the support frame 2.

[0031] Further, see attached document. Figures 3 to 5 As shown, the refueling mechanism includes an oil tank 8 fixedly connected to the side wall of the support frame 2. The top of the oil tank 8 has an oil inlet, and the bottom of the oil tank 8 is connected to a hollow tube 9. The bottom end of the hollow tube 9 is fixedly connected to a hose 10. The inside of the hollow tube 9 is fixedly connected to a solenoid valve 11. The outer wall of the hollow tube 9 is fixedly connected to a flow meter 12 for adjusting the flow of oil inside the hollow tube 9. The top of the punching machine body 1 is fixedly connected to a timer 13. The timer 13 and the solenoid valve 11 are electrically connected. One end of the hose 10 is fixedly connected to an annular tube 14. The annular tube 14 is fixedly connected to the bottom of the upper fixed block 4 and is located on the outer wall of the punch 5. The inner wall of the annular tube 14 is connected to four drip heads 15 that are inclined towards the punch 5. After the solenoid valve 11 is activated, the oil in the oil tank 8 will flow from top to bottom into the hollow tube 9 and the hose 10. The hose 10 delivers the oil into the annular tube 14 and drips it onto the four surfaces of the punch 5 by the four drip heads 15.

[0032] When lubrication is required between the punch 5 and the mold through groove 7, the timer 13 installed on the top of the punching machine body 1 starts timing control. After the preset time interval can be set to every five minutes, the timer 13 sends an opening signal to the solenoid valve 11 fixed inside the hollow tube 9. After the solenoid valve 11 is triggered to open, the lubricating oil in the oil tank 8 flows from top to bottom into the hollow tube 9 under the action of gravity, and flows through the flow meter 12 installed on the outer wall of the hollow tube 9. The flow meter 12 adjusts the oil flow rate and oil volume to ensure stable oil supply.

[0033] The lubricating oil then enters the hose 10 and is delivered to the annular tube 14, which is fixed at the bottom of the upper fixing block 4 and covers the outer wall of the punch 5. The inner wall of the annular tube 14 is provided with four oil drip heads 15 facing the four sides of the punch 5 respectively. The lubricating oil drips onto the four sides of the punch 5 through the four oil drip heads 15, thereby achieving uniform lubrication of the contact area between the punch 5 and the mold through groove 7, and preventing the punch 5 from jamming or sticking to the burrs due to insufficient lubrication during high-frequency punching.

[0034] Further, see attached document. Figure 3As shown, the side wall of the oil tank 8 is inlaid with glass 16 for observing how much oil is left inside the oil tank 8, which serves to visually observe changes in the oil level.

[0035] Further, see attached document. Figure 6 As shown, two fixed rods 17 are fixedly connected between the top and bottom of the inner wall of the oil tank 8. A float block 18 is slidably connected between the outer walls of the two fixed rods 17. A pressing rod 24 is fixedly connected to the bottom of the float block 18. A reflective strip is fixedly connected to the side wall of the pressing rod 24. An alarm button 19 is fixedly connected to the bottom of the inner wall of the oil tank 8. A sealing mold 20 for sealing the alarm button 19 is fixedly connected to the outer wall of the bottom of the inner wall of the oil tank 8 near the alarm button 19. An alarm light 25 is fixedly connected to the top of the oil tank 8.

[0036] The oil reservoir 8 has two fixed rods 17 inside, which are slidably connected to a float block 18. When the oil level drops to the set lower limit, the pressing rod 24 at the bottom of the float block 18 sinks due to gravity and presses the alarm button 19 covered by the sealing mold 20 at the bottom of the oil reservoir 8, triggering the alarm light 25 installed on the top to light up and remind the user to add oil in time through the screw-connected rotating cover 21.

[0037] Further, see attached document. Figure 4 As shown, a rotating cover 21 is threadedly connected to the outer wall of the oil inlet at the top of the oil tank 8. An air inlet 22 for air intake is opened on the outer wall of the rotating cover 21. A filter screen 23 for filtering dust is fixedly connected to the outer wall of the air inlet 22.

[0038] The air inlet 22 ensures that the internal air pressure of the oil tank is balanced with the external air pressure during oil filling, avoiding the problem of oil not flowing smoothly due to negative pressure. In addition, the filter screen 23 can effectively block dust or foreign objects in the air from entering the oil tank, preventing the lubricating oil from being contaminated, thereby improving the cleanliness and operational reliability of the entire refueling mechanism and extending the service life of the equipment.

[0039] Further, see attached document. Figure 6 As shown, the alarm button 19 and the pressing lever 24 are on the same vertical line. The weight of the pressing lever 24 is greater than the force required to press the alarm button 19, so that when the oil level in the oil tank 8 drops and the float block 18 drops accordingly, it can press the alarm button 19 by its own weight, thereby triggering the alarm light 25 to light up.

[0040] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0041] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An automatic oiling device for a die-cutting machine, comprising a die-cutting machine body (1), wherein a support frame (2) is provided inside the die-cutting machine body (1), the support frame (2) is in the shape of an inverted L, a telescopic cylinder (3) is fixedly installed on the top of the support frame (2), the output end of the telescopic cylinder (3) passes through the bottom of the support frame (2) and is fixedly connected to an upper fixing block (4), a punch (5) is fixedly connected to the bottom of the upper fixing block (4), a lower fixing block (6) is fixedly connected to the side wall of the support frame (2), a die through groove (7) is provided on the top of the lower fixing block (6), and the lower fixing block (6) and the die through groove (7) are on the same horizontal plane, characterized in that: The side wall of the support frame (2) is provided with a lubrication mechanism for lubricating the punch (5).

2. The automatic oiling device for a die-casting machine according to claim 1, characterized in that, The refueling mechanism includes an oil tank (8) fixedly connected to the side wall of the support frame (2). The top of the oil tank (8) is provided with an oil inlet. The bottom of the oil tank (8) is connected to a hollow tube (9). The bottom end of the hollow tube (9) is fixedly connected to a hose (10). The inside of the hollow tube (9) is fixedly connected to a solenoid valve (11). The outer wall of the hollow tube (9) is fixedly connected to a flow meter (12) for adjusting the flow of oil inside the hollow tube (9). The top of the punching machine body (1) is fixedly connected to a timer (13). One end of the hose (10) is fixedly connected to an annular tube (14). The annular tube (14) is fixedly connected to the bottom of the upper fixed block (4) and is located on the outer wall of the punch (5). The inner wall of the annular tube (14) is connected to four drip heads (15) that are inclined toward the punch (5).

3. The automatic oiling device for a die-casting machine according to claim 2, characterized in that, The side wall of the oil tank (8) is inlaid with glass (16) for observing how much oil is left inside the oil tank (8).

4. The automatic oiling device for die-cutting machines according to claim 3, characterized in that, Two fixed rods (17) are fixedly connected between the top and bottom of the inner wall of the oil storage tank (8). A floating block (18) is slidably connected between the outer walls of the two fixed rods (17). A pressing rod (24) is fixedly connected to the bottom of the floating block (18). A reflective strip is fixedly connected to the side wall of the pressing rod (24).

5. The automatic oiling device for die-cutting machines according to claim 4, characterized in that, An alarm button (19) is fixedly connected to the bottom of the inner wall of the oil tank (8). A sealing mold (20) for sealing the alarm button (19) is fixedly connected to the bottom of the inner wall of the oil tank (8) near the outer wall of the alarm button (19). An alarm light (25) is fixedly connected to the top of the oil tank (8).

6. The automatic oiling device for a die-cutting machine according to claim 5, characterized in that, The outer wall of the oil inlet at the top of the oil tank (8) is threaded with a rotating cover (21), and the outer wall of the rotating cover (21) is provided with an air inlet (22) for air intake.

7. The automatic oiling device for a die-cutting machine according to claim 6, characterized in that, The outer wall of the air inlet (22) is fixedly connected with a filter screen (23) for filtering dust.

8. The automatic oiling device for a die-casting machine according to claim 2, characterized in that, The timer (13) and the solenoid valve (11) are electrically connected.

9. An automatic oiling device for a die-casting machine according to claim 2, characterized in that, After the solenoid valve (11) is activated, the oil in the oil storage tank (8) will flow from top to bottom into the hollow tube (9) and the hose (10). The hose (10) will transport the oil into the annular tube (14) and drip it onto the four surfaces of the punch (5) by the four dripping heads (15).

10. An automatic oiling device for a die-casting machine according to claim 5, characterized in that, The alarm button (19) and the pressing lever (24) are on the same vertical line, and the weight of the pressing lever (24) is greater than the force required to press the alarm button (19).

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