Engraving machine

Abstract

The application discloses an engraving machine, and relates to the technical field of mechanical engraving. The engraving machine comprises a rack assembly, a pressing assembly, a lifting assembly and an engraving driving assembly. The engraving driving assembly comprises a first driving member, a second driving member, a third driving member and an engraving head. The first driving member is used for driving a cross beam structure to move along a first horizontal direction, thereby driving the pressing assembly and the lifting assembly to move along the first horizontal direction. The second driving member is used for driving the engraving head to slide along the extension direction of the cross beam structure, so that the engraving head moves to a target position above a workpiece to be engraved. The third driving member is used for driving the engraving head to move along a vertical direction to approach the workpiece to be engraved. The engraving machine realizes stable pressing, accurate positioning and reliable cutting of small plate workpieces during the engraving process, can be self-adaptively pressed, avoids flying material, deviation or warping of small workpieces at the moment of complete cutting, thereby ensuring the engraving quality, improving the machining precision, and reducing manual post-processing procedures.

Description

Technical Field

[0001] This utility model relates to the field of mechanical engraving technology, specifically to an engraving machine. Background Technology

[0002] As the precision and automation levels of the sheet metal engraving industry continue to improve, engraving machines face problems such as material flying and unstable holding during the cutting and separation of small workpieces. Existing engraving machines typically rely solely on the cutting head for cutting. When small workpieces are cut to the final stage, the material loses its support, resulting in unstable force and making it prone to flying off under the action of the cutting head. This leads to reduced processing accuracy and may even damage the cutting tool or affect the continuity of subsequent processes.

[0003] To avoid material spillage, existing technologies commonly employ incomplete cutting processes, where a slight connection between the workpiece and the raw material is intentionally preserved during cutting, followed by manual or additional steps for separation and deburring. However, this approach not only significantly reduces processing efficiency but also easily leads to quality problems such as uneven cut edges and increased dimensional deviations, making it difficult to meet the demands of high-precision machining and continuous production.

[0004] In addition, to improve cutting stability, some equipment attempts to incorporate a pressure structure, such as a fixed pressure block or a simple pressure roller mechanism. However, such structures generally have the following problems: the pressure roller spacing is not adjustable or is difficult to adjust, making it impossible to adapt to the pressure requirements of workpieces of different widths; the pressure height cannot automatically adapt to the workpiece thickness, easily resulting in insufficient clamping or indentation that damages the workpiece; the pressure assembly cannot move synchronously with the crossbeam, making it difficult to keep the pressure position consistent with the engraving head position, thus weakening the clamping effect; the lifting structure is mostly a rigid connection, which cannot achieve elastic fit, resulting in uneven contact between the pressure material and the workpiece, affecting cutting stability and processing quality. Utility Model Content

[0005] One objective of this invention is to provide an engraving machine that solves the technical problems in the prior art where engraving machines easily lead to unstable holding, reduced cutting accuracy, and easy material flying when completely cutting the workpiece to be engraved.

[0006] Another objective of this invention is to further improve the cutting accuracy of the engraving machine.

[0007] According to the purpose of this utility model, this utility model provides an engraving machine, comprising: A frame assembly includes a support plate and a crossbeam structure located above the support plate, the crossbeam structure being movable along the extension direction of the support plate, the support plate being used to support a workpiece to be engraved, the extension direction of the support plate being a first horizontal direction; A pressing assembly is located above the support plate. The pressing assembly includes two pressing rollers extending along a second horizontal direction and two mounting assemblies located at both ends of the pressing rollers. The two mounting assemblies are movable along a first horizontal direction to adjust the distance between the two pressing rollers. The second horizontal direction is perpendicular to the first horizontal direction. Two lifting components are respectively disposed at both ends of the crossbeam structure. Each lifting component is located above the mounting component and is elastically connected to the corresponding mounting component, so as to drive the pressing component to move up and down in the vertical direction. The engraving drive assembly includes a first drive member, a second drive member, a third drive member, and an engraving head. The first drive member is used to drive the crossbeam structure to move along the first horizontal direction, thereby driving the material pressing assembly and the lifting assembly to move along the first horizontal direction. The second drive member is used to drive the engraving head to slide along the extension direction of the crossbeam structure, so that the engraving head moves to a target position above the workpiece to be engraved. The third drive member is used to drive the engraving head to move along the vertical direction to approach the workpiece to be engraved.

[0008] Optionally, the lifting assembly includes: Drive motor; The guide member is fixedly connected at one end to the pressing assembly, so that when the drive motor drives the guide member to move in the vertical direction, it causes the pressing assembly to move in the extension direction of the guide member.

[0009] Optionally, the drive motor is a servo motor.

[0010] Optionally, the engraving machine further includes a connecting assembly disposed between the lifting assembly and the pressure assembly, the connecting assembly comprising: A connecting plate is fixedly connected to the guide member of the lifting assembly; The elastic component includes an elastic element whose two ends respectively abut against the connecting plate and the mounting component, and a limiting post located within the elastic element.

[0011] Optionally, the mounting components include: The mounting frame includes two limiting plates that extend along the first horizontal direction and are arranged opposite to each other, and each of the two limiting plates is provided with a slide rail on its opposite side; Each of the pressure rollers is provided with a mounting component corresponding to one of the pressure rollers. The mounting component is provided with a bearing that is fixedly connected to the pressure roller. Each mounting component has a sliding groove at both ends that engages with the slide rail, so that the mounting component can move along the slide rail of the limiting plate to adjust the spacing of the pressure rollers.

[0012] Optionally, the mounting components further include: A fixing plate is located on the side of the mounting component away from the pressure roller, and the fixing plate is provided with at least two sliding groove holes corresponding to each mounting component; The limiting screw is fixedly connected to the mounting component through the sliding hole.

[0013] Optionally, the number of the sliding holes is four, and each of the mounting components corresponds to two of the sliding holes.

[0014] Optionally, the engraving machine further includes: A connector is provided corresponding to each of the lifting components, and the two ends of the connector are respectively fixedly connected to the beam structure and the lifting component.

[0015] This invention achieves stable holding, precise positioning, and reliable cutting of small sheet metal workpieces during the engraving process by incorporating an adjustable-gap pressing component, an elastically connected lifting component, and a multi-dimensional linkage engraving drive component in the engraving machine. At the same time, it enables the engraving machine to adaptively press the workpiece during the movement of the engraving head, preventing small workpieces from flying, shifting, or lifting at the moment of complete cutting, thereby ensuring engraving quality, improving processing accuracy, and reducing manual post-processing steps.

[0016] Furthermore, the drive motor of this invention is a servo motor. Servo motors are characterized by high control precision and fast response, and can finely adjust the lifting position and movement speed of the pressing assembly, thereby ensuring that the pressing assembly can fit the workpiece in a more stable and precise manner. At the same time, the servo motors set at both ends of the crossbeam structure can achieve synchronous movement through the control system, so that the lifting behavior of the left and right sides is consistent, avoiding tilting of the pressing assembly, uneven pressing, or workpiece force imbalance caused by uncoordinated movement at both ends.

[0017] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0018] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings: Figure 1 This is a schematic overall structural diagram of an engraving machine according to an embodiment of the present utility model; Figure 2 This is a schematic left view of a carving machine according to an embodiment of the present invention; Figure 3This is a schematic installation structure diagram of the lifting assembly, connecting assembly, and pressing assembly according to an embodiment of the present utility model; Figure 4 This is a schematic partial structural diagram of an engraving machine according to an embodiment of the present utility model; Figure 5 This is a schematic cross-sectional view of an installation component according to an embodiment of the present invention.

[0019] Figure label: 100-Engraving machine, 10-Frame assembly, 11-Bearing plate, 12-Beam structure, 20-Pressure assembly, 21-Pressure roller, 22-Mounting assembly, 30-Lifting assembly, 40-Engraving drive assembly, 41-Engraving head, 32-Drive motor, 31-Guide component, 50-Connecting assembly, 51-Connecting plate, 52-Elastic component, 521-Elastic component, 522-Limiting post, 221-Mounting frame, 222-Limiting plate, 223-Slide rail, 224-Mounting component, 225-Bearing, 226-Slide groove, 227-Fixing plate, 228-Slide groove hole, 229-Limiting screw, 60-Connecting component. Detailed Implementation

[0020] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0021] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, it should be noted that, for ease of description, only the parts relevant to this application are shown in the accompanying drawings, not the entire structure. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0022] The terms “comprising” and “having”, and any variations thereof, used in this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus.

[0023] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0024] Figure 1 This is a schematic overall structural diagram of an engraving machine according to one embodiment of the present invention. Figure 2 This is a schematic left view of a carving machine according to an embodiment of the present invention. Figure 3 This is a schematic installation structure diagram of the lifting assembly, connecting assembly, and pressing assembly according to one embodiment of the present utility model. Figure 4 This is a schematic partial structural diagram of an engraving machine according to an embodiment of the present invention. Figure 5 This is a schematic cross-sectional view of an installation component according to an embodiment of the present invention.

[0025] like Figure 1 As shown, this utility model provides an engraving machine 100, which includes a frame assembly 10, a pressing assembly 20, two lifting assemblies 30, and an engraving drive assembly 40. The frame assembly 10 includes a support plate 11 and a crossbeam structure 12 located above the support plate 11. The crossbeam structure 12 is configured to move along the extension direction of the support plate 11. The support plate 11 is used to support the workpiece to be engraved. The extension direction of the support plate 11 is a first horizontal direction. The pressing assembly 20 is located above the support plate 11 and includes two pressure rollers 21 extending along a second horizontal direction and two mounting assemblies 22 located at both ends of the pressure rollers 21. The two mounting assemblies 22 can move along the first horizontal direction to adjust the distance between the two pressure rollers 21. The second horizontal direction is perpendicular to the first horizontal direction. The horizontal direction is vertical, and two lifting components 30 are respectively set at both ends of the crossbeam structure 12. Each lifting component 30 is located above the mounting component 22 and is elastically connected to the corresponding mounting component 22 to drive the pressing component 20 to rise and fall in the vertical direction. The engraving drive component 40 includes a first drive member, a second drive member, a third drive member and an engraving head 41. The first drive member is used to drive the crossbeam structure 12 to move in the first horizontal direction, thereby driving the pressing component 20 and the lifting component 30 to move in the first horizontal direction. The second drive member is used to drive the engraving head 41 to slide in the extension direction of the crossbeam structure 12 so that the engraving head 41 moves to the target position above the workpiece to be engraved. The third drive member is used to drive the engraving head 41 to move in the vertical direction to approach the workpiece to be engraved.

[0026] In this embodiment, by setting an adjustable-gap pressing component 20, an elastically connected lifting component 30, and a multi-dimensional linkage engraving drive component 40 in the engraving machine 100, stable holding, precise positioning, and reliable cutting of small sheet metal workpieces during the engraving process are achieved. At the same time, the engraving machine 100 can adaptively press the workpiece during the movement of the engraving head 41, avoiding material flying, deviation, or lifting of small workpieces at the moment of complete cutting, thereby ensuring engraving quality, improving processing accuracy, and reducing manual post-processing steps.

[0027] In this embodiment, the crossbeam structure 12 is configured to move along the first horizontal direction of the bearing plate 11, so that the engraving head 41 and the pressure assembly 20 can cover the entire processing area. The bearing plate 11 stably supports the workpiece, ensuring the smoothness of the engraving process, thereby ensuring that the engraving head 41, the pressure assembly 20 and the workpiece to be engraved always maintain an accurate relative position, providing a stable foundation for subsequent pressing and cutting.

[0028] In this embodiment, the pressure roller 21 extends along the second horizontal direction, and the two mounting components 22 are movable along the first direction, so that the spacing between the pressure rollers 21 can be freely adjusted according to the width of the workpiece to adapt to small plates of different sizes, avoid uneven force on the workpiece due to a fixed spacing, thereby realizing the adaptive pressing of the pressure roller 21 on workpieces of different specifications, ensuring stable pressing without damaging the material, and preventing the problem of flying material caused by complete cutting.

[0029] In this embodiment, two lifting components 30 are disposed at both ends of the crossbeam, that is, each lifting component 30 is correspondingly disposed with a mounting component 22 and connected to the mounting component 22 through an elastic element 521. The lifting component 30 can drive the pressing component 20 to move up and down as a whole, and the elastic element 521 achieves flexible contact, so that the pressing component 20 automatically compensates for height changes in real time during the engraving process, achieves adaptive pressing, avoids the pressure roller 21 from hard impacting the workpiece, and maintains the continuity and safety of pressing.

[0030] In this embodiment, the first driving component drives the crossbeam to move along the first direction, thereby driving the pressing assembly 20 to move synchronously. The second driving component causes the engraving head 41 to move along the crossbeam direction, corresponding to the precise positioning in the second horizontal direction. The third driving component controls the engraving head 41 to move downward in the vertical direction to achieve cutting, thereby achieving precise positioning of the engraving head 41 in the three-dimensional direction and control of the cutting depth, so that the cutting trajectory and the pressing position are consistent, ensuring that the workpiece is still stably pressed when the cutting is complete, fundamentally eliminating the risk of flying material.

[0031] like Figure 2As shown, in a further embodiment, the lifting assembly 30 includes a drive motor 32 and a guide member 31. One end of the guide member 31 is fixedly connected to the pressing assembly 20, so that when the drive motor 32 drives the guide member 31 to move vertically, it causes the pressing assembly 20 to move along the extension direction of the guide member 31. In this embodiment, by setting the drive motor 32 and the guide member 31 in the lifting assembly 30, and fixing one end of the guide member 31 to the pressing assembly 20, when the drive motor 32 drives the guide member 31 to move vertically, the pressing assembly 20 can stably lift and lower along its extension direction under the guidance of the guide member 31. This ensures the directional accuracy and positional stability of the pressing assembly 20's up and down movement, avoids swaying or jamming during lifting, improves the uniformity of the force and the reliability of the pressing roller 21, and enables small workpieces to achieve a more stable fit during engraving, further reducing the risk of flying material and improving the overall accuracy and consistency of the engraving process.

[0032] In a further embodiment, the drive motor 32 is a servo motor. Servo motors are characterized by high control precision and fast response, allowing for fine adjustment of the lifting position and movement speed of the pressing assembly 20. This ensures that the pressing assembly 20 can adhere to the workpiece in a more stable and precise manner. Simultaneously, the servo motors located at both ends of the crossbeam structure 12 can achieve synchronized movement through the control system, ensuring consistent lifting behavior on both sides and preventing tilting of the pressing assembly 20, uneven pressing, or workpiece force imbalance caused by uncoordinated movement at both ends.

[0033] like Figure 3As shown, in a further embodiment, the engraving machine 100 further includes a connecting component 50 disposed between the lifting component 30 and the pressing component 20. The connecting component 50 includes a connecting plate 51 and an elastic component 52. The connecting plate 51 is fixedly connected to the guide member 31 of the lifting component 30. The elastic component 52 includes an elastic element 521 with both ends abutting against the connecting plate 51 and the mounting component 22 respectively, and a limiting post 522 located inside the elastic element 521. In this embodiment, by providing a connecting component 50 between the lifting component 30 and the pressing component 20, and by including a connecting plate 51 fixedly connected to the guide member 31, an elastic element 521 disposed between the connecting plate 51 and the mounting component 22, and a limiting post 522 located inside the elastic element 521, a flexible clamping force can be applied to the pressing component 20 through the elastic element 521 when the lifting component 30 drives the guide member 31 to move up and down. This achieves adaptive fitting of the pressing component 20 to the workpiece and avoids damage to the workpiece due to excessive pressure caused by rigid downward pressure. Meanwhile, the elastic element 521 can absorb minor height changes caused by the engraving process, making the pressing action more stable. The limiting post 522 is located inside the elastic element 521, which can effectively limit the elastic deformation, prevent the elastic element 521 from being over-pressed and failing, or cause the pressing assembly 20 to press down too deeply, and ensure that the overall pressing stroke is within a safe and controllable range.

[0034] like Figure 4 As shown, in a further embodiment, the mounting component 22 includes a mounting frame 221 (see Figure 221). Figure 3 The mounting frame 221 includes two limiting plates 222 extending along a first horizontal direction and arranged opposite each other. Each limiting plate 222 has a slide rail 223 on its opposite side. The mounting member 224 contains a bearing 225 fixedly connected to the pressure roller 21, and each mounting member 224 has a groove 226 at both ends that engages with the slide rail 223 (see reference). Figure 5 This allows the mounting component 224 to move along the slide rail 223 of the limiting plate 222 to adjust the spacing of the pressure rollers 21. By designing the mounting assembly 22 to include a mounting frame 221 and mounting components 224 corresponding to each pressure roller 21, and by setting two opposing limiting plates 222 extending along a first horizontal direction within the mounting frame 221, with slide rails 223 respectively provided on opposite sides of the limiting plates 222, and by forming grooves 226 at both ends of the mounting component 224 that engage with the slide rails 223, the mounting component 224 can move smoothly along the slide rails 223, thereby achieving the adjustable spacing of the pressure rollers 21. This structure allows the pressure rollers 21 to maintain constrained linear movement during adjustment, avoiding wobbling, offset, or tilting caused by manual adjustment or structural loosening, ensuring that the two pressure rollers 21 always remain parallel, and improving the uniformity and stability of the pressing.

[0035] In this embodiment, a bearing 225 is provided inside the mounting component 224 and fixedly connected to the pressure roller 21, enabling the pressure roller 21 to rotate smoothly when pressing the workpiece, reducing frictional resistance, and ensuring the smoothness of the workpiece conveying and feeding process. Overall, this structure not only enables rapid and precise adjustment of the spacing between the pressure rollers 21, but also improves the fit quality and stability of the pressing mechanism when processing small workpieces, thereby further reducing the risk of flying material and improving the carving accuracy.

[0036] like Figure 5 As shown, in a further embodiment, the mounting assembly 22 also includes a fixing plate 227 and a limiting screw 229. The fixing plate 227 is located on the side of the mounting member 224 away from the pressure roller 21. The fixing plate 227 has at least two sliding holes 228 corresponding to each mounting member 224. The limiting screw 229 is fixedly connected to the mounting member 224 through the sliding holes 228, which can reliably lock the position of the pressure roller 21 after adjustment. Since the sliding holes 228 have a length direction, the mounting member 224 can slide freely within the range of the sliding holes 228 during the adjustment along the slide rail 223. After reaching the target spacing, the position can be fixed by tightening the limiting screw 229. This structure not only ensures the flexibility of the pressure roller 21 spacing adjustment, but also avoids the loosening or displacement of the mounting member 224 due to vibration or long-term movement, thereby ensuring that the pressure roller 21 maintains a stable pressing position during processing, improving the overall installation strength and operational reliability.

[0037] like Figure 3 As shown, in a further embodiment, there are four sliding holes 228, and each mounting component 224 corresponds to two sliding holes 228. This allows each mounting component 224 to form a double-point constraint structure at its locking point on the fixing plate 227, thereby further improving the stability and anti-shaking ability of the mounting component 224 in the locked state. The double sliding holes 228, together with the limiting screws 229, provide a more balanced force distribution, enabling the mounting component 224 to achieve a more reliable and secure position fixation after adjusting the spacing of the pressure rollers 21, avoiding the risk of rotation, displacement, or loosening caused by single-point locking. At the same time, the layout of the four sliding holes 228 increases the overall structural strength of the mounting mechanism, allowing the adjusted pressure rollers 21 to maintain higher parallelism and positional accuracy during processing, thereby improving the stability of the pressing material, ensuring that the workpiece remains in contact and does not shift during engraving, and further improving processing accuracy.

[0038] like Figure 2As shown, in a further embodiment, the engraving machine 100 also includes a connector 60 corresponding to each lifting component 30, with both ends of the connector 60 fixedly connected to the crossbeam structure 12 and the lifting component 30, respectively. In this embodiment, by providing a connector 60 corresponding to each lifting component 30 in the engraving machine 100, and fixing both ends of the connector 60 to the crossbeam structure 12 and the lifting component 30, additional structural support and positional constraints can be provided for the lifting component 30 during operation. The connector 60 can effectively enhance the overall connection rigidity between the lifting component 30 and the crossbeam structure 12, preventing the lifting component 30 from swaying, shifting, or changing its posture when moving up and down or moving with the crossbeam, thereby ensuring that the lifting mechanism operates more stably and the force is more evenly distributed. At the same time, the connector 60 can improve the positioning accuracy of the lifting component 30 relative to the crossbeam structure 12, so that the pressing component 20 maintains a parallel state and a vertical movement path during the lifting process, avoiding uneven pressing or abnormal workpiece pressure due to tilting or swaying, which is beneficial to improving the pressing stability.

[0039] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0040] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A carving machine, characterized in that, include: A frame assembly includes a support plate and a crossbeam structure located above the support plate, the crossbeam structure being movable along the extension direction of the support plate, the support plate being used to support a workpiece to be engraved, the extension direction of the support plate being a first horizontal direction; A pressing assembly is located above the support plate. The pressing assembly includes two pressing rollers extending along a second horizontal direction and two mounting assemblies located at both ends of the pressing rollers. The two mounting assemblies are movable along a first horizontal direction to adjust the distance between the two pressing rollers. The second horizontal direction is perpendicular to the first horizontal direction. Two lifting components are respectively disposed at both ends of the crossbeam structure. Each lifting component is located above the mounting component and is elastically connected to the corresponding mounting component, so as to drive the pressing component to move up and down in the vertical direction. The engraving drive assembly includes a first drive member, a second drive member, a third drive member, and an engraving head. The first drive member is used to drive the crossbeam structure to move along the first horizontal direction, thereby driving the material pressing assembly and the lifting assembly to move along the first horizontal direction. The second drive member is used to drive the engraving head to slide along the extension direction of the crossbeam structure, so that the engraving head moves to a target position above the workpiece to be engraved. The third drive member is used to drive the engraving head to move along the vertical direction to approach the workpiece to be engraved.

2. The engraving machine according to claim 1, characterized in that, The lifting assembly includes: Drive motor; The guide member is fixedly connected at one end to the pressing assembly, so that when the drive motor drives the guide member to move in the vertical direction, it causes the pressing assembly to move in the extension direction of the guide member.

3. The engraving machine according to claim 2, characterized in that, The drive motor is a servo motor.

4. The engraving machine according to claim 3, characterized in that, The engraving machine further includes a connecting component disposed between the lifting assembly and the pressing assembly, the connecting component comprising: A connecting plate is fixedly connected to the guide member of the lifting assembly; The elastic component includes an elastic element whose two ends respectively abut against the connecting plate and the mounting component, and a limiting post located within the elastic element.

5. The engraving machine according to claim 4, characterized in that, The installation components include: The mounting frame includes two limiting plates that extend along the first horizontal direction and are arranged opposite to each other, and each of the two limiting plates is provided with a slide rail on its opposite side; Each of the pressure rollers is provided with a mounting component corresponding to one of the pressure rollers. The mounting component is provided with a bearing that is fixedly connected to the pressure roller. Each mounting component has a sliding groove at both ends that engages with the slide rail, so that the mounting component can move along the slide rail of the limiting plate to adjust the spacing of the pressure rollers.

6. The engraving machine according to claim 5, characterized in that, The installation components also include: A fixing plate is located on the side of the mounting component away from the pressure roller, and the fixing plate is provided with at least two sliding groove holes corresponding to each mounting component; The limiting screw is fixedly connected to the mounting component through the sliding hole.

7. The engraving machine according to claim 6, characterized in that, The number of sliding holes is four, and each mounting component corresponds to two sliding holes.

8. The engraving machine according to any one of claims 1-7, characterized in that, Also includes: A connector is provided corresponding to each of the lifting components, and the two ends of the connector are respectively fixedly connected to the beam structure and the lifting component.

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