A melt-cutting mechanism and a baling press

Abstract

The utility model discloses a kind of melting cutting mechanism and packing machine, belong to packing machine technical field, including fusion assembly and cutting assembly, the cutting assembly and the fusion assembly connection, the cutting assembly includes elastic member, briquetting, blade and paddle, the paddle and the briquetting abut, the briquetting side not abutting the paddle is connected with the one end of the elastic member, the top end of the blade and the other end of the elastic member abut;The paddle at least has first curve and second curve, the first curve or the second curve and the one side of the briquetting abut.The utility model is set up with the first curve and second curve of different distance from rotation center, only need to rotate the paddle change the compression amount of the elastic member, i.e. the pressure of blade to packing belt can be controlled.This effectively avoids the complex operation of disassembly replacement elastic member, simplifies the adjusting operation of cutter elastic member, improves packing efficiency and production continuity.

Description

Technical Field

[0001] This utility model relates to the field of packaging machines, and in particular to a melting and cutting mechanism and a packaging machine. Background Technology

[0002] Packaging machines use strapping to bundle items and are widely used in logistics, warehousing, and manufacturing. Due to variations in the material, weight, and packaging requirements of the bundled items, different types of strapping are often required in practice. These material differences place varying demands on the elasticity of the cutting blade's components within the packaging machine.

[0003] In existing strapping machines, adjusting or replacing the elastic element relies on disassembling components. This process often requires removing the machine's outer casing and exposing the internal cutter and elastic element assembly. This is cumbersome, time-consuming, and labor-intensive, impacting strapping efficiency and production continuity on the production line. Furthermore, frequent disassembly of the casing and cutter can lead to wear and loose connections, increasing maintenance costs and potentially affecting the machine's accuracy and reducing strapping quality due to assembly errors. Utility Model Content

[0004] This invention aims to overcome the problem of cumbersome operation in adjusting or replacing the elastic element of the cutter in the prior art, and provides a melting and cutting mechanism and a packaging machine.

[0005] To achieve the above objectives, the present invention provides a welding and cutting mechanism, comprising a welding assembly and a cutting assembly, wherein the cutting assembly and the welding assembly are connected, the cutting assembly comprising an elastic element, a pressure block, a blade and a paddle, the paddle abutting against the pressure block, the side of the pressure block not abutting against the paddle being connected to one end of the elastic element, and the tip of the blade abutting against the other end of the elastic element; the paddle having at least a first curved portion and a second curved portion, the first curved portion or the second curved portion abutting against one side of the pressure block.

[0006] In one embodiment, the paddle includes a paddle body, with a first curved portion and a second curved portion respectively disposed at both ends of the paddle body. The first curved portion and the second curved portion are located at different heights, and rotating the paddle causes the first curved portion or the second curved portion to abut against the pressure block respectively.

[0007] In one embodiment, the cutting assembly further includes a fixed base, the paddle is rotatably connected to the fixed base, and the pressure block and the elastic element are disposed within the fixed base; the paddle has a mounting hole, a rotating shaft is installed in the mounting hole, and the two ends of the rotating shaft are disposed on the fixed base; the distance between the first curved portion and the center of the mounting hole is less than the distance between the second curved portion and the center of the mounting hole.

[0008] In one embodiment, the pressure block has a first protrusion and a second protrusion at both ends, the first protrusion facing the paddle side and abutting against the first curved part or the second curved part, the second protrusion facing the elastic member side and embedded in the elastic member.

[0009] In one embodiment, the cutting assembly further includes a connector, and the blade is connected to the connector; the blade has a through hole, and the connector is installed in the through hole.

[0010] In one embodiment, the connector includes a protruding end and a limiting end, the protruding end and the limiting end are connected, the protruding end is disposed through the through hole, the limiting end is disposed outside the through hole, and the protruding end is clearance-fitted with the through hole.

[0011] In one embodiment, the welding assembly includes an upper tooth, a lower tooth, and a connecting block. The upper tooth and the lower tooth are arranged vertically, the upper tooth is fitted into the connecting block, the blade is connected to the connecting block through the connector, and the fixing seat is connected to the connecting block.

[0012] This utility model also provides a packaging machine, including a housing and a base, the housing being disposed on the base, and an installation space being formed between the housing and the base, and further including a melting and cutting mechanism as described above, the melting and cutting mechanism being installed within the installation space.

[0013] This utility model also provides a packaging machine, including a housing, a base, and a tensioning mechanism. The housing is disposed on the base, and an installation space is formed between the housing and the base. The tensioning mechanism is installed in the installation space. It also includes a melting and cutting mechanism as described above, which is installed in the installation space. The tensioning mechanism is connected to the melting and cutting mechanism.

[0014] In summary, this utility model provides a welding and cutting mechanism and a packing machine. By setting a pressure block and a rotatable lever at the top of the elastic element, and setting a first curved part and a second curved part at the end of the lever at different distances from the rotation center, the pressure of the blade on the packing strap can be controlled simply by rotating the lever to change the compression of the elastic element. This effectively avoids the complicated operation of disassembling and replacing the elastic element, simplifies the adjustment operation of the cutting blade elastic element, and improves packing efficiency and production continuity.

[0015] To make the above-mentioned features and advantages of the utility model more apparent and understandable, specific embodiments are described below, and detailed descriptions are provided in conjunction with the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the packaging machine in the first working state of this utility model.

[0017] Figure 2 for Figure 1 The first sectional view.

[0018] Figure 3 for Figure 2 A magnified view of a portion of the image.

[0019] Figure 4 for Figure 1 The second sectional view.

[0020] Figure 5 This is a schematic diagram of the packaging machine in the second working state of this utility model.

[0021] Figure label:

[0022] Welding and cutting mechanism-1;

[0023] Cutting component-11;

[0024] Mounting bracket-111;

[0025] First mounting slot - 1111; Second mounting slot - 1112;

[0026] Pick-112;

[0027] Paddle body - 1121; First curved section - 1122; Second curved section - 1123; Mounting hole - 1124; Groove - 1125; Shaft - 1126;

[0028] Press-113;

[0029] The first convex part-1131; the second convex part 1132;

[0030] Elastic component-114;

[0031] Blade-115;

[0032] Through hole - 1151; Tool tip - 1152;

[0033] Connector-116;

[0034] Extending end - 1161; Limiting end - 1162;

[0035] Welding assembly-12;

[0036] Upper tooth -121; Lower tooth -122; Connecting block -123;

[0037] Driver Component-13;

[0038] Transmission assembly -14;

[0039] Base - 2;

[0040] Tensioning mechanism -3. Detailed Implementation

[0041] To make the objectives and technical solutions of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0042] To overcome the cumbersome operation of adjusting or replacing the elastic element of the cutter in existing technologies, this utility model provides a melting and cutting mechanism, such as... Figure 1 As shown, the welding and cutting mechanism 1 includes a welding assembly 12, a driving assembly 13, a transmission assembly 14, and a cutting assembly 11. The welding assembly 12 is connected to the transmission assembly 14 and the driving assembly 13, respectively, and the cutting assembly 11 is connected to the welding assembly 12.

[0043] like Figure 2 As shown, the cutting assembly 11 includes a fixed base 111, a paddle 112, a pressure block 113, an elastic element 114, a blade 115, and a connector 116. The paddle 112 is rotatably disposed at one end of the fixed base 111. The pressure block 113 and the elastic element 114 are disposed within the fixed base 111. The paddle 112 rotatably abuts against one side of the pressure block 113. The side of the pressure block 113 that does not abut against the paddle 112 is connected to one end of the elastic element 114. The other end of the elastic element 114 abuts against the top tip of the blade 115. The blade 115 is connected to the connector 116.

[0044] Figure 3 for Figure 2 See the enlarged view of the part. Figure 3 Specifically, the fixing base 111 is fixedly connected to the welding assembly 12. The fixing base 111 has a first mounting groove 1111 and a second mounting groove 1112 at its end. The first mounting groove 1111 is formed along the width direction of the fixing base 111 at its end, and the second mounting groove 1112 is formed along the length direction of the fixing base 111 at the end without the first mounting groove 1111. The first mounting groove 1111 and the second mounting groove 1112 are continuous. The end of the lever 112 is rotatably disposed within the first mounting groove 1111, and the pressure block 113 and the elastic element 114 are disposed within the second mounting groove 1112.

[0045] The paddle 112 includes a paddle body 1121, a first curved portion 1122, a second curved portion 1123, a mounting hole 1124, and a groove 1125 (see...). Figure 1 The first curved portion 1122 and the second curved portion 1123 are respectively disposed at both ends of the paddle body 1121. The paddle body 1121 has a mounting hole 1124 along its thickness direction and a groove 1125 along its thickness direction. The mounting hole 1124 is used to mount a rotating shaft 1126. The rotating shaft 1126 passes through the mounting hole 1124 and its two ends are disposed on the fixed base 111. The rotating shaft 1126 and the mounting hole 1124 cooperate to allow the paddle 112 to rotate at the end of the fixed base 111. The first curved portion and the second curved portion are located at different heights. Specifically, the distance between the center of the first curved portion 1122 and the center of the mounting hole 1124 is less than the distance between the center of the second curved portion 1123 and the center of the mounting hole 1124. The paddle 112 rotatably abuts the first curved portion 1122 or the second curved portion 1123 against the pressure block 113. The paddle 112 may also have other curved sections, all of which are located at the end of the paddle body 1121, and the distances from the other curved sections to the center of the mounting hole 1124 are all different.

[0046] The pressure block 113 has a first protrusion 1131 and a second protrusion 1132 at both ends. The first protrusion 1131 faces the side of the lever 112 and abuts against the lever 112. The second protrusion 1132 faces the side of the elastic member 114 and is embedded in the elastic member 114. The second protrusion 1132 is used to limit the elastic member 114 and prevent it from shifting horizontally. Under the synergistic action of the elastic member 114 and the lever 112, the pressure block 113 can generate vertical displacement within the second mounting groove 1112. At the same time, the elastic member 114 will generate different compression amounts after being subjected to the forces of the lever 112 and the pressure block 113 at different positions, thereby changing the force transmitted by the elastic member 114 to the tip of the blade 115. Specifically, when the first protrusion 1131 is connected to the first curved portion 1122, the pressure block 113 is in a first position and the elastic element 114 is a first compression amount; when the first protrusion 1131 is connected to the second curved portion 1123, the pressure block 113 is in a second position and the elastic element 114 is a second compression amount; the first compression amount is less than the second compression amount.

[0047] like Figure 4 As shown, the blade 115 has a through hole 1151 along the thickness direction, and the through hole 1151 is used to install the connector 116.

[0048] The connector 116 includes a protruding end 1161 and a limiting end 1162, which are connected. The protruding end 1161 extends through the through hole 1151, and the limiting end 1162 is located on the side of the blade 115 where the welding assembly 12 is not installed. The length of the through hole 1151 is greater than the diameter of the protruding end 1161, and the width of the through hole 1151 is greater than the diameter of the protruding end 1161 but smaller than the diameter of the limiting end 1162. This creates a gap when the protruding end 1161 is installed in the through hole 1151, allowing for relative vertical movement between the connector 116 and the through hole 1151 while preventing horizontal movement of the blade 115.

[0049] Furthermore, the welding assembly 12 includes an upper tooth 121, a lower tooth 122, and a connecting block 123. The upper tooth 121 and the lower tooth 122 are arranged vertically, and the upper tooth 121 is fitted into the connecting block 123. The cutting assembly 11 is connected to the connecting block 123. Specifically, the blade 115 is in direct contact with the connecting block 123, the protruding end 1161 passes through the through hole 1151 and is fixedly connected to the connecting block 123, and the fixing seat 111 is fixedly connected to the connecting block 123.

[0050] Furthermore, this utility model also provides a packing machine, which includes the aforementioned melting and cutting mechanism 1, a housing (not shown in the figure), and a base 2. The housing is disposed on the base 2, and an installation space is formed between the housing and the base 2. The melting and cutting mechanism 1 is installed within the installation space. The packing machine may also include a tensioning mechanism 3, which is also installed within the installation space. The tensioning mechanism 3 is connected to the melting and cutting mechanism 1 and is used to tighten the packing strap.

[0051] When packaging strapping with high rigidity, the packaging machine is in its first operating state. A tool is used to press against the groove 1125 (see...). Figure 1 Rotating the paddle 112 causes the second curved portion 1123 (see...) Figure 3 ) and the first protrusion 1131 (see Figure 3When the tensioning mechanism 3 tightens the packing strap, the transmission assembly 14 drives the connecting block 123 and the upper tooth 121 to press down, and the welding and cutting mechanism 1 will press down synchronously. When the tip 1152 of the blade 115 contacts the packing strap, the packing strap provides an upward force to the tip 1152. At this time, the elastic element 114 is simultaneously subjected to an upward force. After being compressed, the elastic element 114 will provide a relatively large downward reaction force to the tip of the blade 115, so that the blade 115 keeps in contact with the surface of the overlapping upper packing strap. When the driving assembly 13 drives the upper tooth 121 and the lower tooth 122 to weld the overlapping packing strap through frictional heat, the surface of the packing strap and the tip 1152 move relative to each other, so that the tip 1152 cuts the upper packing strap.

[0052] See Figure 5 When packaging strapping with less rigid material, the packaging machine is in its second operating state. The tool is pressed against the groove 1125 (see...). Figure 1 This causes the paddle 112 to rotate, ensuring that the first curved portion 1122 abuts against the first protrusion 1131, the pressure block 113 is in the first position, and the elastic element 114 is in the first compression amount. After the tensioning mechanism 3 tightens the packing strap, the transmission assembly 14 drives the connecting block 123 (see...) Figure 4 ) and the upper tooth 121 (see Figure 4 When the blade 115 is pressed down, the welding and cutting mechanism 1 will press down synchronously. When the tip 1152 of the blade 115 contacts the packing strap, the packing strap provides an upward force to the tip 1152. At this time, the elastic element 114 is simultaneously subjected to an upward force. After being pressed, the elastic element 114 will provide a relatively small downward reaction force to the tip of the blade 115, so that the blade 115 remains in contact with the surface of the overlapping upper packing strap. When the drive assembly 13 drives the upper tooth 121 and the lower tooth 122 to weld the overlapping packing strap through frictional heat, the surface of the packing strap and the tip 1152 will move relative to each other, so that the tip 1152 cuts the upper packing strap.

[0053] By adjusting the position of the pressure block 113, the compression amount of the elastic element 114 is controlled, so that the downward reaction force on the blade 115 matches the hardness of the strapping. This avoids the problem that the strapping cannot be cut due to insufficient contact between the hard strapping and the blade 115, or that the strapping cannot move relative to the blade tip 1152 due to excessive contact between the hard strapping and the blade 115.

[0054] In summary, this utility model provides a welding and cutting mechanism 1 and a packing machine. By setting a pressure block 113 and a rotatable lever 112 at the top of the elastic element 114, and setting a first curved portion 1122 and a second curved portion 1123 at the end of the lever 112 at different distances from the rotation center, the pressure of the blade 115 on the packing strap can be controlled simply by rotating the lever 112 to change the compression amount of the elastic element 114. This effectively avoids the complicated operation of disassembling and replacing the elastic element, simplifies the adjustment operation of the cutting blade elastic element, and improves packing efficiency and production continuity.

[0055] Although the present invention has been disclosed above by way of embodiments, it is not intended to limit the present invention. Anyone skilled in the art can make some modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A welding and cutting mechanism, comprising a welding assembly and a cutting assembly, wherein the cutting assembly and the welding assembly are connected, characterized in that, The cutting assembly includes an elastic element, a pressure block, a blade, and a paddle. The paddle abuts against the pressure block, and the side of the pressure block that does not abut against the paddle is connected to one end of the elastic element. The tip of the blade abuts against the other end of the elastic element. The paddle has at least a first curved portion and a second curved portion, and the first curved portion or the second curved portion abuts against one side of the pressure block.

2. The melting and cutting mechanism as described in claim 1, characterized in that, The paddle includes a paddle body, with a first curved portion and a second curved portion respectively disposed at both ends of the paddle body. The first curved portion and the second curved portion are located at different heights. Rotating the paddle will cause the first curved portion or the second curved portion to abut against the pressure block respectively.

3. The melting and cutting mechanism as described in claim 2, characterized in that, The cutting assembly further includes a fixed base, the paddle is rotatably connected to the fixed base, and the pressure block and the elastic element are disposed in the fixed base; the paddle has a mounting hole, a rotating shaft is installed in the mounting hole, and the two ends of the rotating shaft are disposed on the fixed base; the distance between the first curved part and the center of the mounting hole is less than the distance between the second curved part and the center of the mounting hole.

4. A welding and cutting mechanism as described in claim 3, characterized in that, The pressure block has a first protrusion and a second protrusion at both ends. The first protrusion faces the side of the paddle and abuts against the first curved part or the second curved part. The second protrusion faces the side of the elastic element and is embedded in the elastic element.

5. A welding and cutting mechanism as described in claim 3, characterized in that, The cutting assembly further includes a connector, and the blade is connected to the connector; the blade has a through hole, and the connector is installed in the through hole.

6. A welding and cutting mechanism as described in claim 5, characterized in that, The connector includes a protruding end and a limiting end, the protruding end and the limiting end are connected, the protruding end is disposed through the through hole, the limiting end is disposed outside the through hole, and the protruding end is clearance-fitted with the through hole.

7. A welding and cutting mechanism as described in claim 6, characterized in that, The welding assembly includes an upper tooth, a lower tooth, and a connecting block. The upper tooth and the lower tooth are arranged vertically. The upper tooth is fitted into the connecting block. The blade is connected to the connecting block through the connector. The fixing seat is connected to the connecting block.

8. A packing machine, comprising a housing and a base, the housing being disposed on the base, and an installation space being formed between the housing and the base, characterized in that, It also includes a melting and cutting mechanism as described in any one of claims 1-7, wherein the melting and cutting mechanism is installed within the installation space.

9. A packing machine, comprising a housing, a base, and a tensioning mechanism, wherein the housing is disposed on the base, and an installation space is formed between the housing and the base, and the tensioning mechanism is installed within the installation space, characterized in that, It also includes a melting and cutting mechanism as described in any one of claims 1-7, wherein the melting and cutting mechanism is installed within the installation space, and the tensioning mechanism is connected to the melting and cutting mechanism.

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