Automatic detection and compensation device for cutting depth

Abstract

The utility model discloses an automatic detection and compensation device for cutting depth. The automatic detection and compensation device is characterized by further comprising a longitudinal driving mechanism, a driving block and a detector, wherein the longitudinal driving mechanism is mounted on a trolley; the driving block is movably mounted on the trolley and is driven by the longitudinal driving mechanism to longitudinally work; through the arrangement of the automatic compensation device, the height position of the cutter can be automatically compensated when a cut object is cut, so that the situation that the cut object is not cut off or excessively cut to cause damage to a table board of the die-cutting machine due to the fact that the cut object is not cut in place when the cut object is cut by the cutter is avoided; and moreover, the machining and assembling requirements of the platform and the track of the die-cutting machine are greatly reduced, and the cutting and carving quality is improved.

Description

Technical Field

[0001] The utility model relates to an automatic cutting depth compensation device, in particular to an automatic cutting depth detection and compensation device. Background Art

[0002] Existing equipment, such as die-cutters, is primarily used for cutting and engraving workpieces such as stickers, leather, paper boxes, and wood. Due to processing and installation precision, the flatness of the workpiece platform or cutting pad at the bottom of the workpiece is often greater than 0.1-0.2 mm. Furthermore, the track on which the cutting assembly is mounted cannot be absolutely level with the platform, resulting in inconsistent cutting depths. This is particularly true for stickers, where the bottom layer of the sticker is cut or the top layer is left uncut, or even damage to the platform is caused by cutting. To address this issue, a device for automatically detecting and compensating cutting depth is proposed. Utility Model Content

[0003] The purpose of the utility model is to solve the above problems and to provide a cutting depth automatic detection and compensation device.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a cutting depth automatic detection and compensation device, including a trolley, characterized in that it also includes a longitudinal driving mechanism installed on the trolley, a driving block installed on the trolley and driven to work longitudinally by the longitudinal driving mechanism, and a detector for detecting the displacement of the driving block; the driving block is detachably provided with a support sleeve, and a detection ball head for detecting the horizontality of the cutting platform or the thickness of the cut object or a cutter for cutting the cut object is detachably installed on the support sleeve; the trolley is also provided with a bracket one, and the driving block is provided with a bracket two that moves with the driving block, and the detector is a grating sensor installed on the bracket one and a linear grating installed on the bracket two that is compatible with the grating sensor.

[0005] Further preferably, the longitudinal drive mechanism is a voice coil motor installed on the trolley and connected to the drive block, or a gear rack drive mechanism driven by the motor, or a servo transmission mechanism, or an electric push rod.

[0006] Further preferably, the rack and pinion mechanism includes a gear mounted on the motor and a rack mounted on the driving block and meshing with the gear.

[0007] Further preferably, the grating sensor for detecting the displacement of the driving block is replaced by an encoder installed on the motor for detecting the rotation angle of the motor.

[0008] Further preferably, it also includes a long guide rod installed on bracket one and guiding the up and down movement of the drive block, and a guide wheel group installed on bracket one. The drive block is slidably installed on the long guide rod, and the drive block is equipped with a short guide rod that cooperates with the guide wheel group.

[0009] More preferably, it also includes a tension spring connected between the bracket 1 and the driving block for driving the driving block to reset.

[0010] More preferably, it further includes a buffer pad installed on the driving block to perform a buffering function.

[0011] The beneficial effects of the utility model are as follows: by arranging a detector on the trolley, the detection ball head is first installed on the driving block before the trolley cuts the product, the detection ball head is driven to move downward to the die-cutting machine table by the longitudinal driving mechanism, and then the trolley is driven to move on the die-cutting machine table by the driving mechanism on the die-cutting machine for driving the trolley to move horizontally. During the horizontal movement, the horizontal movement position data is sent to the controller used to control the movement of the trolley on the device. At the same time, during the horizontal movement, the longitudinal driving mechanism drives the detection ball head to always contact the die-cutting machine table, and floats up and down with the die-cutting machine table. During movement, the height of each point is detected by the detector and the longitudinal position data is sent to the controller. The controller forms a movement trajectory through the collected lateral position data and longitudinal position data; when the product is subsequently cut by the cutter, the controller controls the carriage to move according to the generated movement trajectory, and automatically compensates for the height of the cutter when cutting the object to be cut, thereby avoiding the cutter from not cutting in place when cutting the object to be cut, resulting in the object to be cut not being cut or cutting too much, causing damage to the die-cutting machine table, and greatly reducing the processing and assembly requirements of the die-cutting machine platform and track, and improving the cutting and engraving quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Attachment Figure 1 It is a structural diagram of the utility model;

[0013] Attachment Figure 2 It is a structural diagram of the utility model;

[0014] Attachment Figure 3 It is a structural schematic diagram of another embodiment of the utility model;

[0015] Attachment Figure 4 It is a structural schematic diagram of another embodiment of the present utility model.

[0016] Legend: 1. Bracket 1; 2. Trolley; 3. Longitudinal drive mechanism; 4. Drive block; 41. Support sleeve; 6. Detection ball head; 7. Voice coil motor; 8. Grating sensor; 81. Linear grating; 9. Long guide rod; 10. Tension spring; 11. Buffer pad; 12. Motor; 13. Gear; 14. Rack; 15. Encoder; 16. Bracket 2; 17. Guide wheel assembly; 18. Short guide rod. DETAILED DESCRIPTION

[0017] Next, we will further explain the cutting depth automatic detection and compensation device of the present invention with reference to the accompanying drawings.

[0018] It should be noted that all directional indications such as up, down, left, right, front, back, etc. in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0019] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; it can mean mechanical connection or electrical connection; it can mean direct connection or indirect connection through an intermediate medium; it can mean internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances. Example 1

[0020] See Figure 1-2 As shown in, a cutting depth automatic detection and compensation device includes a trolley 2, characterized in that it also includes a longitudinal drive mechanism 3 mounted on the trolley 2, a drive block 4 mounted on the trolley 2 and driven longitudinally by the longitudinal drive mechanism 3, and a detector for detecting the displacement of the drive block 4; the drive block 4 is detachably provided with a support sleeve 41, and the support sleeve 41 is detachably provided with a detection ball head 6 for detecting the horizontality of the cutting platform or the thickness of the cut object, or a cutter for cutting the cut object; the trolley 2 is further provided with a bracket 1, the drive block 4 is provided with a bracket 2 16 that moves with the drive block, and the detector is a grating sensor 8 mounted on the bracket 1 and a linear grating 81 mounted on the bracket 2 16 and adapted to the grating sensor 8;

[0021] The longitudinal drive mechanism 3 is a voice coil motor 7 mounted on the trolley 2 and connected to the drive block 4;

[0022] By setting a grating sensor 8 on the trolley 2, the detection ball head 6 is first installed on the driving block 4 before the trolley 2 cuts the product, and then the driving block 4 is driven to move to the uppermost position by the longitudinal driving mechanism 3, and the position at this time is set as zero. Then, the detection ball head 6 is driven downward to the die-cutting machine table by the longitudinal driving mechanism 3, and then the trolley 2 is driven to move horizontally on the die-cutting machine table by the driving mechanism on the die-cutting machine for driving the trolley 2 to move horizontally. During the horizontal movement, the horizontal movement position data is sent to the controller. At the same time, during the horizontal movement, the longitudinal driving mechanism 3 drives the detection ball head 6 to always be in contact with the die-cutting machine. The cutter contacts the die-cutting machine table, and as the die-cutting machine table floats up and down, the height data of each point during the floating is detected by the grating sensor 8 and the longitudinal position data is sent to the controller. The controller forms a moving track through the collected lateral position data and longitudinal position data; subsequently, when cutting the object to be cut, the height of the cutter is automatically compensated according to the moving track, thereby avoiding the cutter from not cutting in place when cutting the object to be cut, resulting in the object to be cut not being cut or cutting too much, which causes damage to the die-cutting machine table, and greatly reduces the processing and assembly requirements of the die-cutting machine platform and track, and improves the cutting and engraving quality.

[0023] In one embodiment, it also includes a long guide rod 9 installed on the bracket 1 and guiding the up and down movement of the driving block 4, and a guide wheel group 17 installed on the bracket 1. The driving block 4 is slidably installed on the long guide rod 9, and the driving block is equipped with a short guide rod 18 that cooperates with the guide wheel group 17; through the arrangement of the long guide rod 9, the guide wheel group 17 and the short guide rod 18, the up and down movement of the driving block 4 is guided and limited.

[0024] In one embodiment, a tension spring 10 connected between the bracket 1 and the driving block 4 is included to drive the driving block 4 to reset. The setting of the tension spring 10 facilitates driving the driving block 4 to reset upward.

[0025] In one embodiment, a buffer pad 11 is further included which is installed on the driving block 4 to buffer the contact between the driving block 4 and the trolley 2 when the driving block 4 moves upward, thereby avoiding position displacement or even damage due to collision.

[0026] The usage process of this example is as follows: First, the controller used to control the movement of the carriage on the device controls the voice coil motor 7 to drive the drive block 4 upward to the highest point and set it to zero. The voice coil motor 7 then drives the drive block 4 downward until the detection ball head 6 is aligned with the die-cutting machine table or the surface of the product to be cut on the die-cutting machine table. The lateral and longitudinal position data at this time are transmitted to the controller. Then, the drive structure used to control the lateral movement of the carriage 2 on the die-cutting machine drives the carriage 2 to move horizontally. During the lateral movement, the detection ball head 6 moves along the die-cutting machine table or the surface of the product to be cut. If there is a height difference, the detection ball head 6 will float up and down, driving the drive block 4 to float up and down. As the drive block 4 floats up and down, the grating sensor 8 detects the height and low position data and synchronously transmits it to the controller until the carriage 2 moves to the other end point and stops. The controller then generates a movement trajectory based on the received and collected lateral and longitudinal position data. When cutting the product, the cutter is mounted on the drive block 4 and the carriage 2 is controlled to cut according to the movement trajectory.

[0027] When measuring the thickness of the object to be cut, first, the detection ball head 6 is moved along the table surface when in contact with the table surface to obtain the height and low position of the moving trajectory. Then, the detection ball head 6 is brought into contact with the object to be cut and moved along the surface of the object to be cut to obtain the height and low position of the moving trajectory along the object to be cut. Then, the height and low position based on the table surface moving trajectory is subtracted from the height and low position along the moving trajectory of the object to be cut to obtain the thickness of the object to be cut. Example 2

[0028] refer to Figure 3 As shown in , the difference between this embodiment and embodiment 1 is that the voice coil motor is replaced by a gear rack drive mechanism or a servo transmission mechanism or an electric push rod driven by a motor; the gear rack mechanism includes a gear 13 mounted on the motor 12 and a rack 14 mounted on the driving block 4 and meshing with the gear 13; the up and down movement of the driving block 4 is driven by the motor 12 to rotate the gear 13, and the gear 13 drives the driving block 4 to move up and down by meshing with the rack 14. Example 3

[0029] refer to Figure 4 As shown in , the difference between this embodiment and embodiment 2 is that in this embodiment, the detector for detecting the height position and moving distance of the driving block 4 is replaced by an encoder 15 installed on the motor 12, and the moving distance of the driving block 4 is detected by detecting the rotation angle of the motor 12 by the encoder 15.

[0030] The protection scope of the present invention is not limited to the above embodiment and its variations. Conventional modifications and replacements made by those skilled in the art based on the contents of this embodiment fall within the protection scope of the present invention.

Claims

1. A cutting depth automatic detection and compensation device, comprising a trolley (2), characterized in that: The invention also includes a longitudinal driving mechanism (3) mounted on the trolley (2), a driving block (4) mounted on the trolley (2) and driven longitudinally by the longitudinal driving mechanism (3), and a detector for detecting the displacement of the driving block (4); the driving block (4) is detachably provided with a support sleeve (41), the support sleeve (41) is detachably provided with a detection ball head (6) for detecting the horizontality of the cutting platform or the thickness of the object to be cut, or a cutter for cutting the object to be cut; the trolley (2) is also provided with a bracket (1), the driving block (4) is provided with a bracket (16) that moves with the driving block, and the detector is a grating sensor (8) mounted on the bracket (1) and a linear grating (81) that is compatible with the grating sensor (8) and is mounted on the bracket (16).

2. The cutting depth automatic detection and compensation device according to claim 1, characterized in that: The longitudinal drive mechanism (3) is a voice coil motor (7) mounted on the trolley (2) and connected to the drive block (4), or a rack and pinion drive mechanism driven by the motor, or a servo transmission mechanism, or an electric push rod.

3. The cutting depth automatic detection and compensation device according to claim 2, characterized in that: The rack and pinion drive mechanism comprises a gear (13) mounted on a motor (12) and a rack (14) mounted on a driving block (4) and meshingly connected to the gear (13).

4. The cutting depth automatic detection and compensation device according to claim 2, characterized in that: The grating sensor (8) for detecting the displacement of the driving block (4) is replaced by an encoder (15) mounted on the motor (12) for detecting the rotation angle of the motor.

5. The cutting depth automatic detection and compensation device according to claim 1, characterized in that: It also includes a long guide rod (9) mounted on the bracket (1) and guiding the up and down movement of the driving block (4) and a guide wheel group (17) mounted on the bracket (1), wherein the driving block (4) is slidably mounted on the long guide rod (9), and the driving block is equipped with a short guide rod (18) that cooperates with the guide wheel group (17).

6. The cutting depth automatic detection and compensation device according to claim 5, characterized in that: It also includes a tension spring (10) connected between the bracket 1 (1) and the driving block (4) for driving the driving block (4) to reset.

7. The cutting depth automatic detection and compensation device according to claim 6, characterized in that: It also includes a buffer pad (11) installed on the driving block (4) to play a buffering role.

Images