Automatic cutting machine for hammer head felt

Abstract

The utility model discloses an automatic cutting machine for hammer head felt. The automatic cutting machine comprises a feeding mechanism, a slitting mechanism and a discharging mechanism which are sequentially arranged. The material pushing assembly drives the whole hammer head to advance along the first track, the material pressing assembly presses the hammer head arranged at the second position, the material clamping assembly clamps the top end of the wood core arranged at the first position, the material clamping assembly slightly pulls the corresponding wood core firstly, so that a gap is formed between the wood core at the first position and the wood core at the second position, and then the material clamping assembly clamps the top end of the wood core at the second position. When the hammer head is pushed down, the cutting assembly cuts down along the gap so as to cut and separate the felt between the two wood cores, the clamping assembly drives the hammer head to retreat from the cutting assembly and then enables the hammer head to fall on the second track, the first pushing assembly pushes the hammer head down to one side, and the second pushing assembly pushes the hammer head down to the other side. And the second material pushing assembly pushes the hammer heads to advance along the second track, so that the hammer heads are output on the second track in a unified arrangement state.

Description

Technical Field

[0001] This utility model relates to the field of piano manufacturing and processing technology, specifically to an automatic cutting machine for hammer felt. Background Technology

[0002] like Figure 1 As shown, the manufacturing process of the hammer is to first make multiple wooden cores, then use a jig to arrange and press the multiple wooden cores into a strip, then press the entire strip of felt onto the entire strip of wooden core to form the entire hammer strip, and finally cut the felt on two wooden cores to form a single hammer.

[0003] The current method for splitting string hammers is as follows: a foot-operated splitting machine is used. The operator places the entire string hammer in the mold groove of the splitting machine with the felt at the bottom and the wood core at the top. The left hand holds the string hammer firmly to make it vertical, and the right hand pulls the front of the string hammer to be split to the right to open a small slit. Then, the foot pedal cuts the white felt part of the string hammer downward along the opened slit, so that the string hammer is separated.

[0004] This slitting method has the following disadvantages: 1. Disadvantages in processing quality: When cutting the hammer, the operator must manually pull the hammer open to create a narrow slit for the cutter. Different forces result in different opening distances, leading to instability in workpiece positioning. This causes the cutter and hammer cutting surface to be non-perpendicular, resulting in quality problems such as damaging the wood core and causing uneven, rough edges on the felt surface, sometimes with dents or protrusions. 2. Disadvantages in processing method: Because positioning relies on manual movement and visual positioning, the processing quality is unstable and prone to problems. Furthermore, the operator's right hand is near the cutting point, posing a safety hazard of cutting themselves. Summary of the Invention

[0005] To overcome the shortcomings of the existing technology, the purpose of this utility model is to provide an automatic cutting machine for hammer felt, eliminating the quality problems and safety hazards of manual cutting, ensuring the consistency and stability of product processing quality, and automating the product processing method of this step. The technical solution of this utility model is as follows:

[0006] An automatic cutting machine for hammer felt, comprising:

[0007] The feeding mechanism includes a first track, a pushing component, and a pressing component; the pushing component is movably disposed on the first track, and the pressing component is disposed above the first track;

[0008] The slitting mechanism includes a cutting component and a clamping component; the cutting component is disposed above the output end side of the first track, and the clamping component is disposed on the side of the cutting component away from the first track;

[0009] The discharging mechanism includes a second track, a first pushing component, and a second pushing component; the second track is located below the clamping component, and the height of the second track is lower than that of the first track; the first pushing component is disposed on one side of the input end of the second track, and the driving direction of the first pushing component is horizontal and perpendicular to the axis of the second track; the second pushing component is disposed at the input end of the second track, and the driving direction of the second pushing component is parallel to the axis of the second track.

[0010] Furthermore, the feeding mechanism also includes a pair of limiting blocks, which are disposed on both sides of the top surface of the output end of the first track.

[0011] Furthermore, the pushing assembly includes a first pushing block, a traction rope, a pulley, and a counterweight; the first pushing block is slidably disposed on the first track, one end of the traction rope is connected to the first pushing block, and the other end is connected to the counterweight, the pulley is disposed on the output end side of the first track, and the traction rope is wound around the pulley.

[0012] Furthermore, the cutting mechanism also includes a contact feedback device, which is disposed above the clamping assembly and located in the axial direction of the first track.

[0013] Furthermore, the pressing assembly includes a second cylinder and a pressing block, the second cylinder being mounted on the bracket, and the pressing block and the second cylinder being drivenly connected.

[0014] Furthermore, the pressing assembly also includes a support block, which is disposed on the first track and located on the side of the first track near its output end. The pressing block is elongated, with one end of the pressing block rotatably connected to the output end of the second cylinder, and the other end of the pressing block rotatably connected to the support block.

[0015] Furthermore, the clamping assembly includes: a gripper, a third cylinder, a fourth cylinder, and a fifth cylinder, wherein the gripper is connected to the third cylinder, the third cylinder is connected to the fourth cylinder, and the fourth cylinder is connected to the fifth cylinder.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The automatic hammer cutting process replaces manual processing, automatically cutting each hammer individually to achieve a smooth, burr-free cut surface. This eliminates the quality problems and safety hazards associated with manual cutting, improves the safety of hammer cutting, ensures the consistency and stability of product processing quality, and automates the product processing method in this step. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 It is a three-dimensional view of the entire hammer and a single hammer in the background art;

[0020] Figure 2 This is a front view of the automatic cutting machine in this utility model;

[0021] Figure 3 This is a partial schematic diagram of the feeding mechanism in this utility model (including the support and cutting components of the slitting mechanism).

[0022] Figure 4 This is a partial schematic diagram of the discharge mechanism in this utility model (including the gripper assembly of the cutting mechanism and the contact feedback device).

[0023] Explanation of icon numbers:

[0024] 11-First track; 12-Pushing assembly; 121-First push block; 122-Traction rope; 123-Pulley; 124-Counterweight; 13-Pressure assembly; 131-Second cylinder; 132-Pressure block; 133-Support block; 14-Limit block;

[0025] 21-Support; 22-Cutting assembly; 221-First cylinder; 222-Cutter; 23-Clamping assembly; 231-Hand; 232-Third cylinder; 233-Fourth cylinder; 234-Fifth cylinder; 24-Contact feedback device;

[0026] 31-Second track; 32-First pusher assembly; 321-Sixth cylinder; 322-Second pusher block; 33-Second pusher assembly; 331-Seventh cylinder; 332-Third pusher block;

[0027] 4-Drumstick; 41-Wooden core; 42-Felt. Detailed Implementation

[0028] To facilitate a better understanding of the purpose, structure, features, and effects of this utility model, it will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that the features shown in the figures are not necessarily drawn to scale. Furthermore, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0029] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. 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," "right," "front," and "back" are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described objects changes. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0030] like Figure 2 As shown, this embodiment of an automatic cutting machine for hammer felt includes a feeding mechanism, a slitting mechanism, and a discharging mechanism arranged in sequence.

[0031] The feeding mechanism includes: a first track 11, a pushing assembly 12, and a pressing assembly 13; the first track 11 has an axially extending guide groove, the shape of which is adapted to the shape of the bottom end of the felt 42, and the hammer 4 is placed on the first track 11 to keep the hammer 4 in an upright state; the pushing assembly 12 is movably disposed on the first track 11, and the pushing assembly 12 is used to drive the entire hammer 4 to feed into the cutting mechanism; the pressing assembly 13 is disposed above the output end of the first track 11, and the pressing assembly 13 is used to press the hammer 4 arranged in the second position and behind it.

[0032] The slitting mechanism includes: a support 21, a cutting component 22, and a clamping component 23; the support 21 is located on one side of the first track 11; the cutting component 22 is disposed on the support 21 and located above the output end side of the first track 11, and the cutting component 22 is used to cut the felt 42 between two wood cores 41; the clamping component 23 is disposed on the side of the cutting component 22 away from the first track 11, and the clamping component 23 is used to clamp the wood core 41 arranged in the first position and realize the functions of pulling and unloading the material;

[0033] The discharge mechanism includes: a second track 31, a first pushing component 32, and a second pushing component 33; the second track 31 is located below the clamping component 23, the axes of the first track 11 and the second track 31 are on the same vertical plane, and the height of the second track 31 is lower than that of the first track 11; the first pushing component 32 is disposed on one side of the input end of the second track 31, the driving direction of the first pushing component 32 is horizontal and perpendicular to the axis of the second track 31, and the first pushing component 32 is used to push the hammer 4 on the second track 31 to one side; the second pushing component 33 is disposed at the input end of the second track 31, the driving direction of the second pushing component 33 is parallel to the axial direction of the second track 31, and the second pushing component 33 is used to push the hammer 4 forward along the second track 31.

[0034] The pushing component 12 drives the entire string hammer 4 forward along the first track 11; the clamping component 23 first gently pulls the corresponding wood core 41 to create a gap between the first and second wood cores 41, and the cutting component 22 cuts down along the gap to separate the felt 42 between the two wood cores 41; the clamping component 23 then drives the string hammer 4 to move away from the cutting component 22, and then releases it so that the string hammer 4 falls onto the second track 31. The first pushing component 12 pushes the string hammer 4 to one side, and the second pushing component 33 pushes the string hammer 4 forward along the second track 31 so that the string hammer 4 is output in a uniform arrangement on the second track 31.

[0035] like Figure 3 As shown, as a preferred embodiment, the feeding mechanism further includes a pair of limiting blocks 14, which are disposed on both sides of the top surface of the output end of the first track 11. The limiting blocks 14 are used to horizontally limit the top of the wood core 41, so that the hammer 4 remains in an upright state.

[0036] like Figure 3 As shown, in a preferred embodiment, the pushing assembly 12 includes a first pushing block 121, a traction rope 122, a pulley 123, and a counterweight 124. The first pushing block 121 is slidably mounted on the first track 11. One end of the traction rope 122 is connected to the first pushing block 121, and the other end is connected to the counterweight 124. The pulley 123 is mounted on the output end side of the first track 11, and the traction rope 122 is wound around the pulley 123. The pulley 123 converts the gravity of the counterweight 124 into a horizontal thrust of the first pushing block 121, thereby pushing the hammer 4 on the first track 11 towards the cutting mechanism.

[0037] like Figure 4As shown, the slitting mechanism further includes a contact feedback device 24, which is disposed above the clamping assembly 23 and located in the axial direction of the first track 11. Specifically, under the advancement of the pushing assembly 12, the hammer 4 abuts against the contact feedback device 24, and the contact feedback device 24 feeds back information to the clamping assembly 23, the cutting assembly 22 and other components to continue the subsequent slitting process.

[0038] like Figure 3 As shown, in a preferred embodiment, the pressing assembly 13 includes a second cylinder 131 and a pressing block 132. The second cylinder 131 is mounted on the bracket 21, and the pressing block 132 and the second cylinder 131 are drivenly connected.

[0039] like Figure 3 As shown, the pressing assembly 13 further includes a support block 133, which is disposed on the first track 11 and located on the side of the first track 11 near its output end. The pressing block 132 is elongated, with one end of the pressing block 132 rotatably connected to the output end of the second cylinder 131, and the other end of the pressing block 132 rotatably connected to the support block 133. In this way, when using a single cylinder, the contact area of ​​the pressing block 132 can be increased, ensuring that the second string hammer 4 can be pressed tightly, and also pressing down the string hammer 4 behind it to prevent arching or other issues from occurring.

[0040] like Figure 3 As shown, preferably, the top surface of the pressure block 132 on the side closest to the cutting mechanism is inclined downwards. This ensures the rigidity of the pressure block 132 while avoiding the vertical movement space of the cutting mechanism to prevent interference.

[0041] like Figure 3 As shown, in a preferred embodiment, the cutting assembly 22 includes a first cylinder 221 and a cutter 222; the first cylinder 221 is mounted on the bracket 21, and the cutter 222 is slidably mounted on the bracket 21. The first cylinder 221 and the cutter 222 are driven to drive the cutter 222 to move downward to cut the felt 42.

[0042] like Figure 4As shown, in a preferred embodiment, the clamping assembly 23 includes: a gripper 231, a third cylinder 232, a fourth cylinder 233, and a fifth cylinder 234. The gripper 231 is connected to the third cylinder 232, the third cylinder 232 is connected to the fourth cylinder 233, and the fourth cylinder 233 is connected to the fifth cylinder 234. Specifically, the third cylinder 232 is used to drive the gripper 231 to clamp and release the wood core 41, the fourth cylinder 233 is used to drive the gripper 231 to pull the material, and the fifth cylinder 234 is used to drive the gripper 231 to retract the material. By setting three different types of cylinders to achieve different functions, precise operation can be achieved.

[0043] like Figure 4 As shown, as a preferred embodiment, the first pushing assembly 32 includes a sixth cylinder 321 and a second pushing block 322. The sixth cylinder 321 is disposed on one side of the second track 31, and the second pushing block 322 is disposed at the output end of the sixth cylinder 321.

[0044] like Figure 4 As shown, the second pushing assembly 33 further includes a seventh cylinder 331 and a third pushing block 332, wherein the third pushing block 332 is disposed at the output end of the seventh cylinder 331;

[0045] like Figure 4 As shown, the third pusher 332 further has a guide surface that slopes downwards toward one side of the output end of the second track 31, guiding the hammer 4 to fall onto the second track 31.

[0046] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any 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 cutting machine for hammer felt, characterized in that, include: The feeding mechanism includes a first track (11), a pushing assembly (12), and a pressing assembly (13); the pushing assembly (12) is movably disposed on the first track (11), and the pressing assembly (13) is disposed above the first track (11); The slitting mechanism includes a bracket (21), a cutting assembly (22), and a clamping assembly (23); the bracket (21) is located on one side of the first track (11), the cutting assembly (22) is disposed on the bracket (21) and located above the output end side of the first track (11), and the clamping assembly (23) is disposed on the side of the cutting assembly (22) away from the first track (11); The discharge mechanism includes a second track (31), a first pusher assembly (32), and a second pusher assembly (33); the second track (31) is located below the clamping assembly (23), and the height of the second track (31) is lower than that of the first track (11); the first pusher assembly (32) is disposed on one side of the input end of the second track (31), and the driving direction of the first pusher assembly (32) is horizontal and perpendicular to the axis of the second track (31); the second pusher assembly (33) is disposed at the input end of the second track (31), and the driving direction of the second pusher assembly (33) is parallel to the axial direction of the second track (31).

2. An automatic cutting machine for hammer felt according to claim 1, characterized in that, The feeding mechanism also includes a pair of limiting blocks (14), which are located on both sides of the top surface of the output end of the first track (11).

3. An automatic cutting machine for hammer felt according to claim 1, characterized in that, The pushing assembly (12) includes a first pushing block (121), a traction rope (122), a pulley (123), and a counterweight (124); the first pushing block (121) is slidably disposed on the first track (11), one end of the traction rope (122) is connected to the first pushing block (121), and the other end is connected to the counterweight (124), the pulley (123) is disposed on the output end side of the first track (11), and the traction rope (122) is wound around the pulley (123).

4. An automatic cutting machine for hammer felt according to claim 3, characterized in that, The cutting mechanism also includes a contact feedback device (24), which is disposed above the clamping assembly (23) and located in the axial direction of the first track (11).

5. An automatic cutting machine for hammer felt according to claim 1, characterized in that, The pressing assembly (13) includes a second cylinder (131) and a pressing block (132). The second cylinder (131) is mounted on the bracket (21), and the pressing block (132) and the second cylinder (131) are drivenly connected.

6. An automatic cutting machine for hammer felt according to claim 5, characterized in that, The pressing assembly (13) further includes a support block (133), which is disposed on the first track (11) and located on the side of the first track (11) near its output end. The pressing block (132) is elongated, with one end of the pressing block (132) rotatably connected to the output end of the second cylinder (131), and the other end of the pressing block (132) rotatably connected to the support block (133).

7. An automatic cutting machine for hammer felt according to claim 1, characterized in that, The clamping assembly (23) includes: a clamp (231), a third cylinder (232), a fourth cylinder (233), and a fifth cylinder (234). The clamp (231) is connected to the third cylinder (232), the third cylinder (232) is connected to the fourth cylinder (233), and the fourth cylinder (233) is connected to the fifth cylinder (234).

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