A material pressing device of a cutting machine

Abstract

A pressing device for a cutting machine includes a pair of parallel mounting plates, a support roller horizontally fixed between the mounting plates, a pressing roller liftable above the support roller, an upper and lower guide mechanism symmetrically arranged inside the mounting plates to constrain the pressing roller to move only in the vertical direction, a reset mechanism providing a continuous downward elastic pressing force to the pressing roller, and an eccentric cam fixedly connected to the end of the pressing roller and rotatably connected to the mounting plates. When the eccentric cam rotates, it drives the pressing roller to rise through its eccentric profile to form a fabric inlet gap. After reset, the pressing roller is pressed against the fabric by the reset mechanism. The vertical projections of the support roller, pressing roller, reset mechanism, and eccentric cam on the horizontal plane at least partially overlap along the length of the mounting plates. The eccentric cam enables convenient fabric loading and unloading without cumbersome disassembly procedures. Simultaneously, the compact layout of each component reduces the lateral space occupied, solving the problem of excessively large transport dimensions caused by the outward protrusion of traditional mounting plates. It balances the need for fabric wrinkle prevention with the transport efficiency of the cutting machine, reducing transportation and operating costs.

Description

Technical Field

[0001] This utility model relates to the field of garment production equipment technology, specifically to a pressing device for a cutting machine. Background Technology

[0002] In the garment machinery industry, optimizing the transport dimensions of cutting machines has always been a key focus. Early cutting machines often had mounting plates for the drive shaft that protruded outwards from the outer side of the machine frame, resulting in excessive length. This made it impossible to install the machine horizontally inside a container during transport; it had to be placed vertically, reducing the number of machines that could be transported per container and increasing transportation costs. Alternatively, the entire machine frame could be disassembled, transported to its destination, and then reinstalled and tested, further increasing time and labor costs.

[0003] To address the aforementioned issues, utility model patent application number 202323008521.5 (authorization publication number CN221052234U) discloses a detachable mounting plate structure. This structure reduces the overall lateral dimensions of the machine by splitting the mounting plate into a first mounting plate and a second mounting plate, and removing the protruding second mounting plate and drive shaft during transportation. While this solution improves transportation efficiency, it suffers from a cumbersome disassembly process and time-consuming assembly, leading to high operating costs, especially in scenarios involving frequent mobile equipment movement.

[0004] To address this issue, the industry has attempted to improve the mounting plate design by shortening its overall length or optimizing the drive shaft layout, aiming to reduce size without disassembly. However, this improvement has introduced a new technical challenge: traditional anti-wrinkle pressing mechanisms rely on the protruding space of the second mounting plate for installation and fixation, and their structural dimensions are related to the protruding length of the second mounting plate. When the mounting plate is shortened, the existing pressing and anti-wrinkle mechanism faces the core problem of insufficient installation space.

[0005] In summary, how to provide a space-saving and compact anti-wrinkle pressing device that can meet the anti-wrinkle requirements of fabric without affecting the size optimization and transportation efficiency of the cutting machine, while reasonably shortening the size of the mounting plate, is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0006] The technical problem to be solved by this utility model is to provide a material pressing device for a cutting machine that achieves a compact structure by overlapping the projection of components along the length of the mounting plate, thereby meeting the requirements for anti-wrinkle pressing of fabric without affecting the size optimization and transportation efficiency of the cutting machine.

[0007] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: the material pressing device of the cutting machine includes...

[0008] A pair of parallel mounting plates;

[0009] Support rollers are laterally fixed between the mounting plates;

[0010] The extrusion roller is vertically and vertically positioned above the support roller;

[0011] The upper and lower guide mechanisms are symmetrically arranged on the inner side of the mounting plate to constrain the extrusion roller to move only in the vertical direction.

[0012] A reset mechanism is configured to provide a continuously downward elastic clamping force to the extrusion roller;

[0013] An eccentric cam is fixedly connected to the end of the extrusion roller and rotatably connected to the mounting plate;

[0014] When the eccentric cam rotates, it drives the extrusion roller to lift through its eccentric profile to form a fabric inlet gap. After resetting, the extrusion roller is pressed against the fabric by the resetting mechanism.

[0015] The vertical projections of the support roller, extrusion roller, reset mechanism, and eccentric cam on the horizontal plane at least partially overlap in the length direction of the mounting plate.

[0016] To improve the convenience of fabric feeding and the reliability of the pressing action, preferably, the upper and lower guide mechanism includes a vertically arranged guide rod with its top fixedly connected to the extrusion roller; a guide block located inside the mounting plate, the guide block having an upper and lower extending guide hole; the guide rod can slide through the guide hole to restrict the extrusion roller to move only in the vertical direction.

[0017] To enhance the stability of the extrusion roller and optimize the spatial layout, preferably, a lifting block is fixedly connected to the end of the extrusion roller, and two parallel and spaced guide rods are connected to the bottom of the lifting block. The two guide rods are respectively inserted into the corresponding guide blocks, the support roller is located in the space between the two guide rods, and the eccentric cam is located outside the lifting block.

[0018] To facilitate operation and ensure precise control of the eccentric cam, preferably, the eccentric cam has a first mounting hole in the transverse direction, and the first rotating shaft of the extrusion roller is fixedly inserted into the first mounting hole; the end of the first rotating shaft extends to the outside of the mounting plate and is fixedly connected to an operating handle, the operating handle being configured to drive the eccentric cam to rotate around the axis of the rotating shaft when an external force is applied, and the rotation profile of the eccentric cam does not exceed the outer end of the mounting plate.

[0019] To improve the locking reliability of the eccentric cam and simplify the adjustment process, preferably, the eccentric cam has two perpendicularly intersecting through grooves, namely a first through groove and a second through groove, wherein the first through groove is connected to the first mounting hole; the side wall of the first through groove is provided with a threaded through hole that is perpendicularly connected to the first through groove; when the locking screw is screwed into the threaded through hole, the eccentric cam undergoes elastic deformation at the first mounting hole to tighten the shaft.

[0020] To ensure the positioning accuracy of the extrusion roller after it is raised and to prevent it from falling back unexpectedly, preferably, the highest point of the eccentric cam is provided with a horizontal positioning surface. When the extrusion roller is raised to its highest position, the horizontal positioning surface is parallel to and abuts against the upper end of the mounting plate, so that the extrusion roller is kept at a fixed height.

[0021] To optimize the installation structure of the support roller and improve the overall rigidity, preferably, a fixing block is provided on the inner side of the mounting plate, and a second mounting hole is provided on the fixing block. The second rotating shaft of the support roller is fixed in the second mounting hole, and the fixing block is located in the interval area between the two guide rods and above the guide block.

[0022] To provide a stable elastic clamping force and simplify the structure of the reset mechanism, preferably, the reset mechanism includes a compression spring, which is sleeved on the guide rod. The top end of the compression spring abuts against the bottom of the guide block, and the bottom end abuts against a positioning head disposed at the bottom of the guide rod.

[0023] To optimize the tension adjustment function of the conveyor belt and reduce space occupation, preferably, a drive shaft is also included, which is laterally arranged between the mounting plates to support the conveyor belt of the cutting machine;

[0024] Both ends of the drive shaft are provided with tension adjustment mechanisms. The tension adjustment mechanisms are located on the outside of the mounting plate, and the vertical projection of the tension adjustment mechanisms on the horizontal plane overlaps at least partially with the support roller and the extrusion roller in the length direction of the mounting plate.

[0025] In order to achieve dynamic safety protection, effectively isolate foreign object intrusion, and maintain the compactness of the device, preferably, a protective cover is provided above the extrusion roller, and the protective cover is installed on the lifting block and moves up and down with the lifting block.

[0026] Compared with the prior art, the advantages of this utility model are as follows: By fixing the support roller between the parallel mounting plates and lifting the extrusion roller above it, and by using the guide mechanism on the inner side of the mounting plate to restrict the extrusion roller to move only vertically, the reset mechanism provides a downward elastic clamping force, and the eccentric cam drives the extrusion roller to lift to form a fabric inlet gap or reset and clamp the fabric. Since the vertical projections of the support roller, extrusion roller, reset mechanism and eccentric cam on the horizontal plane at least partially overlap in the length direction of the mounting plate, and the profile of the eccentric cam does not extend beyond the outer side of the mounting plate, convenient fabric loading and unloading is achieved through the rotation of the eccentric cam; and the compact spatial layout significantly reduces the lateral size of the device, solving the problem of low transportation efficiency caused by the outward protrusion of the traditional mounting plate. While shortening the size of the mounting plate, it meets the fabric anti-wrinkle pressing requirements, improves the transportation efficiency of the cutting machine and reduces operating costs. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of this embodiment;

[0028] Figure 2 This is a three-dimensional structural diagram of another corner of this embodiment;

[0029] Figure 3 for Figure 2 An enlarged structural diagram;

[0030] Figure 4 This is a schematic diagram of the decomposed state structure of this embodiment;

[0031] Figure 5 This is a schematic diagram of the eccentric cam rotating to its lowest point in this embodiment;

[0032] Figure 6 This embodiment presents a schematic diagram of the structure when the eccentric cam rotates to its highest point.

[0033] Figure 7 This embodiment presents a three-dimensional structural diagram of the eccentric cam. Detailed Implementation

[0034] The present invention will be further described in detail with reference to the accompanying drawings and embodiments.

[0035] Figures 1-7 The figure shown is the preferred embodiment of the present invention. The specific implementation of the present invention will be described in detail below with reference to the accompanying drawings.

[0036] In this embodiment, the pressing device of the cutting machine mainly includes a pair of parallel mounting plates 1, a support roller 2, a pressing roller 3, an upper and lower guide mechanism 4, a reset mechanism 5, and an eccentric cam 6. The vertical projections of each component on the horizontal plane at least partially overlap in the length direction of the mounting plate 1, and the rotational profile of the eccentric cam 6 does not exceed the outer end of the mounting plate 1, thus achieving a compact structural layout.

[0037] Among them, reference Figure 1 and Figure 2 As shown, mounting plate 1 serves as the main support structure of the device, with arrow A indicating the length direction of mounting plate 1. Support roller 2 is horizontally fixed between two mounting plates 1. Specifically, mounting plate 1 has a fixing block 9 on its inner side, with a second horizontally penetrating mounting hole 9a. The second rotating shaft 2a of support roller 2 passes through and is fixed in this second mounting hole 9a. The fixing block 9 is located within the interval between two guide rods 4a and above the guide block 4b to ensure the stability of the support roller 2 installation. Squeeze roller 3 is vertically and vertically mounted above support roller 2, achieving precise vertical movement through the upper and lower guide mechanism 4. Reset mechanism 5 provides a continuous downward elastic clamping force to squeeze roller 3, ensuring the fabric clamping effect.

[0038] The specific structure of the upper and lower guide mechanism 4 is as follows: Figures 2 to 4 As shown, the system includes a vertically arranged guide rod 4a and a guide block 4b fixed inside the mounting plate 1. The guide block 4b has vertically extending guide holes 4c. The top of the guide rod 4a is fixedly connected to the extrusion roller 3, and the lower part slides through the guide hole 4c, ensuring that the extrusion roller 3 can only move in the vertical direction. To improve guiding stability, a lifting block 3a is fixedly connected to the end of the extrusion roller 3. Two parallel, spaced guide rods 4a are connected to the bottom of the lifting block 3a. The two guide rods 4a pass through the corresponding guide blocks 4b. The support roller 2 is located in the spaced area between the two guide rods 4a, and the eccentric cam 6 is located outside the lifting block 3a.

[0039] The lifting control mechanism of the extrusion roller 3 is as follows Figures 5 to 7As shown, the device includes an eccentric cam 6 fixed to the end of the extrusion roller 3. The eccentric cam 6 has a first mounting hole 6a opened laterally. The first rotating shaft 3b of the extrusion roller 3 passes through and is fixed in the first mounting hole 6a. The end of the first rotating shaft 3b extends to the outside of the mounting plate 1 and is fixedly connected to an operating handle 7. When an external force is applied, the operating handle 7 can drive the eccentric cam 6 to rotate around the axis of the first rotating shaft 3b, and the rotation profile of the eccentric cam 6 does not exceed the outer end of the mounting plate 1. Its eccentric profile drives the extrusion roller 3 to rise to form a fabric inlet gap. After resetting, the extrusion roller 3 is pressed against the fabric by the resetting mechanism 5. The eccentric cam 6 has two perpendicularly intersecting through grooves: a first through groove 6b and a second through groove 6c. The first through groove 6b connects to the first mounting hole 6a. The side wall of the first through groove 6b has a threaded through hole 6d that vertically connects to the first through groove 6b. When the locking screw 8 is screwed into the threaded through hole 6d, the eccentric cam 6 undergoes elastic deformation at the first mounting hole 6a to tighten the first rotating shaft 3b. In addition, the highest point of the eccentric cam 6 is provided with a horizontal positioning surface 6e. When the extrusion roller 3 is raised to the highest position, the horizontal positioning surface 6e abuts against the upper end of the mounting plate 1 in parallel, so that the extrusion roller 3 is kept at a fixed height and reliable positioning is achieved.

[0040] The reset mechanism 5 adopts a compression spring 5a structure, such as Figure 3 and Figure 4 As shown. A compression spring 5a is sleeved on the guide rod 4a. The top end of the compression spring 5a abuts against the bottom of the guide block 4b, and the bottom end abuts against the positioning head 4d located at the bottom of the guide rod 4a, providing a stable downward pressing force for the extrusion roller 3.

[0041] In addition, the pressing device also includes a drive shaft 10, such as Figure 1 and Figure 4 As shown, it is horizontally arranged between the mounting plates 1 to support the conveyor belt of the cutting machine (the conveyor belt is not shown in the figure). Both ends of the drive shaft 10 are provided with tension adjustment mechanisms 11. The tension adjustment mechanisms 11 are located on the outside of the mounting plates 1, and the vertical projection of the tension adjustment mechanisms 11 on the horizontal plane overlaps at least partially with the support roller 2 and the extrusion roller 3 in the length direction of the mounting plate 1, further optimizing the spatial layout of the device.

[0042] In order to achieve dynamic safety protection, effectively isolate foreign objects from intrusion, and maintain the compactness of the device, in this embodiment, a protective cover 12 is specially provided above the extrusion roller 3. The protective cover 12 is installed on the lifting block 3a and moves up and down with the lifting block 3a.

[0043] The operating principle of the material clamping device of this cutting machine is as follows:

[0044] When fabric needs to be placed in, the operator pulls the operating handle 7, causing the eccentric cam 6 to rotate and the pressure roller 3 to rise, creating a fabric inlet gap. After the fabric is in place, the operator releases the handle 7, and the pressure roller 3 presses the fabric down under the action of the reset mechanism 5. During the cutting process, the support roller 2 and the pressure roller 3 work together to ensure the fabric is conveyed flat and stably. The fixing tightness of the eccentric cam 6 can be adjusted by adjusting the locking screw 8 to ensure operational stability.

[0045] It should be noted that in the description of this embodiment, the terms "front," "rear," "left," "right," "inner," "outer," "upper," and "lower," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are merely for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. The terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

Claims

1. A pressure device of a cutting machine, characterized by: include A pair of parallel mounting plates (1); Support rollers (2) are laterally fixed between the mounting plates (1); The extrusion roller (3) is vertically mounted above the support roller (2); The upper and lower guide mechanisms (4) are symmetrically arranged inside the mounting plate (1) to constrain the extrusion roller (3) to move only in the vertical direction; The reset mechanism (5) is configured to provide a continuous downward elastic clamping force to the extrusion roller (3); An eccentric cam (6) is fixedly connected to the end of the extrusion roller (3) and rotatably connected to the mounting plate (1); When the eccentric cam (6) rotates, it drives the extrusion roller (3) to rise through its eccentric profile to form a fabric inlet gap. After resetting, the extrusion roller (3) is pressed against the fabric by the resetting mechanism (5). The vertical projections of the support roller (2), the extrusion roller (3), the reset mechanism (5), and the eccentric cam (6) on the horizontal plane at least partially overlap in the length direction of the mounting plate (1).

2. The material pressing device of the cutting machine according to claim 1, characterized in that: The upper and lower guide mechanism (4) includes A vertically arranged guide rod (4a) has its top fixedly connected to the extrusion roller (3); A guide block (4b) is provided on the inner side of the mounting plate (1), and a guide hole (4c) extending vertically is provided on the guide block (4b); The guide rod (4a) can slide through the guide hole (4c) to restrict the extrusion roller (3) to move only in the vertical direction.

3. The material pressing device of the cutting machine according to claim 2, characterized in that: The end of the extrusion roller (3) is fixedly connected to a lifting block (3a). The bottom of the lifting block (3a) is connected to two parallel and spaced guide rods (4a). The two guide rods (4a) are respectively inserted into the corresponding guide blocks (4b). The support roller (2) is located in the spaced area between the two guide rods (4a), and the eccentric cam (6) is located on the outside of the lifting block (3a).

4. The material pressing device of the cutting machine according to claim 1, characterized in that: The eccentric cam (6) has a first mounting hole (6a) in the transverse direction, and the first rotating shaft (3b) of the extrusion roller (3) is fixed in the first mounting hole (6a); The end of the first rotating shaft (3b) extends to the outside of the mounting plate (1) and is fixedly connected to an operating handle (7). The operating handle (7) is configured to drive the eccentric cam (6) to rotate around the axis of the first rotating shaft (3b) when an external force is applied, and the rotation profile of the eccentric cam (6) does not exceed the outer end of the mounting plate (1).

5. The material pressing device of the cutting machine according to claim 4, characterized in that: The eccentric cam (6) has two perpendicularly intersecting through grooves, a first through groove (6b) and a second through groove (6c), wherein the first through groove (6b) connects to the first mounting hole (6a); The sidewall of the first through groove (6b) is provided with a threaded through hole (6d) that vertically connects to the first through groove (6b); With the locking screw (8) screwed into the threaded through hole (6d), the eccentric cam (6) undergoes elastic deformation at the first mounting hole (6a) to tighten the first rotating shaft (3b).

6. The material pressing device of the cutting machine according to claim 1, characterized in that: The highest point of the eccentric cam (6) is provided with a horizontal positioning surface (6e). When the extrusion roller (3) is raised to the highest position, the horizontal positioning surface (6e) abuts against the upper end of the mounting plate (1) in parallel, so that the extrusion roller (3) is kept at a fixed height.

7. The material pressing device of the cutting machine according to claim 3, characterized in that: The mounting plate (1) has a fixing block (9) on its inner side. The fixing block (9) has a second mounting hole (9a) that runs horizontally through it. The second rotating shaft (2a) of the support roller (2) is fixed in the second mounting hole (9a). The fixing block (9) is located in the interval area between the two guide rods (4a) and above the guide block (4b).

8. The material pressing device of the cutting machine according to claim 2, characterized in that: The reset mechanism (5) includes a compression spring (5a), which is sleeved on the guide rod (4a). The top end of the compression spring (5a) abuts against the bottom of the guide block (4b), and the bottom end abuts against the positioning head (4d) located at the bottom of the guide rod (4a).

9. The material clamping device of the cutting machine according to any one of claims 1 to 8, characterized in that: Also includes A drive shaft (10) is laterally disposed between the mounting plates (1) to support the conveyor belt of the cutting machine; Both ends of the drive shaft (10) are provided with tension adjustment mechanisms (11). The tension adjustment mechanisms (11) are located on the outside of the mounting plate (1), and the vertical projection of the tension adjustment mechanism (11) on the horizontal plane overlaps at least partially with the support roller (2) and the extrusion roller (3) in the length direction of the mounting plate (1).

10. The material pressing device of the cutting machine according to claim 3, characterized in that: A protective cover (12) is provided above the extrusion roller (3). The protective cover (12) is installed on the lifting block (3a) and moves up and down with the lifting block (3a).

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