Sponge drill bit set and sponge roller brush processing equipment

Abstract

The utility model discloses a kind of sponge drilling cutter set and sponge roll brush processing equipment, belong to sponge processing equipment field.The utility model's sponge drilling cutter set, including transmission case, outer cutter barrel and inner cutter barrel, transmission case has coaxially arranged first driving shaft and second driving shaft, outer cutter barrel is installed in the lower end of first driving shaft, inner cutter barrel is installed in the lower end of second driving shaft, inner cutter barrel is coaxially arranged in the inner side of outer cutter barrel.The utility model utilizes the transmission case with two coaxial driving shafts to install sponge drilling inner and outer cutter barrel, so that outer cutter barrel and inner cutter barrel can be driven respectively, so that the rotation direction and the rotating speed of inner and outer cutter barrel can be controlled, improve the stability and processing precision of sponge drilling processing;In addition, since inner and outer cutter barrel is controlled by two driving shafts, the rotation direction of inner and outer cutter barrel can be opposite, effectively reduce the drilling torque of drilling cutter set to sponge, further improve processing stability and processing precision.

Description

Technical Field

[0001] This utility model relates to a sponge processing equipment, and more specifically, to a sponge drilling tool set and a sponge roller brush processing equipment. Background Technology

[0002] Sponges are widely used in cleaning, brush making, and other fields due to their excellent water absorption and porous nature. When used in sponge roller brushes, the sponge needs to be processed into a hollow cylindrical structure, and with a handle, it can be used for thick paint application, etc.

[0003] In the processing of sponge roller brushes, a sponge drilling and core-removing device is required. This device first drills concentric cylinders into the sponge using inner and outer cutting cylinders, and then pulls the smaller inner cylinder from the larger outer cylinder, forming a sponge cylinder with hollow holes. For example, Chinese Patent Publication No. CN113977698 A discloses "A Drilling and Core-Removing Device for Sponge Roller Brushes" (publication date: January 28, 2022), which includes a frame and a conveyor line mounted on the frame. A sponge block to be transported is placed on the conveyor line. The conveyor line is equipped with a drilling assembly for drilling holes in the sponge block and a core-removing assembly for removing the core from the drilled sponge block. The drilling assembly spans the conveyor line, and the sponge block passes under the drilling assembly and is drilled. The core-removing assembly spans the conveyor line and is located behind the drilling assembly. The drilled sponge block passes under the core-removing assembly, and the core-removing assembly pulls out the cotton core of the sponge block. The removed cotton core is placed on a waste disposal mechanism for waste disposal. The drilling and core-pulling equipment in the aforementioned patent application completes the drilling and core-pulling processes on the same machine, which improves production efficiency to some extent. However, the first and second drill bits used for drilling are driven by the same stepper motor, and the first and second drill bits rotate in the same direction. This will generate drilling torque in the same direction on the sponge block, which can easily cause the sponge block to move and deform, affecting the product processing accuracy and drilling efficiency. Summary of the Invention

[0004] 1. Technical problem to be solved by the utility model

[0005] The purpose of this invention is to overcome the aforementioned shortcomings of existing sponge roller brush drilling tools and to provide a sponge drilling tool assembly and sponge roller brush processing equipment. The technical solution of this invention utilizes a transmission box with two coaxial drive shafts to install the inner and outer drilling tool cylinders, allowing the outer and inner tool cylinders to be driven separately. This enables control over the rotation direction and speed of the inner and outer tool cylinders, improving the stability and accuracy of sponge drilling. Since the inner and outer tool cylinders are controlled by two drive shafts, their rotation directions can be opposite, effectively reducing the drilling torque exerted on the sponge by the drilling tool assembly, further improving processing stability and accuracy.

[0006] 2. Technical Solution

[0007] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0008] This utility model provides a sponge drilling tool assembly, including...

[0009] A transmission box having a first drive shaft and a second drive shaft coaxially arranged;

[0010] An outer cutter barrel is mounted at the lower end of the first drive shaft;

[0011] An inner cutter cylinder is installed at the lower end of the second drive shaft and is coaxially disposed inside the outer cutter cylinder.

[0012] Furthermore, the first drive shaft and the second drive shaft rotate in opposite directions.

[0013] Furthermore, the lower end of the inner blade is recessed within the lower end of the outer blade.

[0014] Furthermore, the transmission box also includes a housing, in which the first drive shaft is rotatably mounted via a first bearing and the second drive shaft is rotatably mounted via a second bearing within the first drive shaft.

[0015] Furthermore, the upper end of the first drive shaft extends out of the housing and is fitted with a first transmission pulley, and the upper end of the second drive shaft extends out of the upper end of the first drive shaft and is fitted with a second transmission pulley.

[0016] This utility model discloses a sponge roller brush processing equipment, which uses the above-mentioned sponge drilling tool set.

[0017] Furthermore, the sponge roller brush processing equipment includes

[0018] The bed is used to fix and place the sponge body to be processed;

[0019] A gantry frame, which spans across the bed and is capable of moving relative to the bed along the X-axis;

[0020] The dual-axis motion mechanism is used to install the sponge drilling cutter group on the gantry frame at intervals along the width of the bed. The dual-axis motion mechanism drives the sponge drilling cutter group to move along the Y-axis and Z-axis.

[0021] Furthermore, the dual-axis motion mechanism includes a Y-axis slide, a Y-axis drive mechanism, a Z-axis slide, and a Z-axis drive mechanism. The Z-axis slide is slidably mounted on the gantry along the Z-axis direction, and the Z-axis drive mechanism is mounted on the gantry to drive the Z-axis slide to move along the Z-axis direction. The Y-axis slide is slidably mounted on the Z-axis slide along the Y-axis direction, and the Y-axis drive mechanism is mounted on the Z-axis slide to drive the Y-axis slide to move along the Y-axis direction. The transmission box of the sponge drilling cutter assembly is fixedly mounted on the Y-axis slide, and a drilling motor for driving the outer and inner cutter cylinders to rotate is also mounted on the Y-axis slide.

[0022] Furthermore, both the Y-axis drive mechanism and the Z-axis drive mechanism adopt a lead screw and nut transmission mechanism.

[0023] Furthermore, the gantry frame is also equipped with a lifting pressure plate mechanism for pressing down the sponge body on the bed, and the lifting pressure plate mechanism is also equipped with a tool cylinder cooling mechanism for dissipating heat from the outer tool cylinder and the inner tool cylinder.

[0024] 3. Beneficial effects

[0025] Compared with existing known technologies, the technical solution provided by this utility model has the following beneficial effects:

[0026] (1) A sponge drilling tool set of the present invention includes a transmission box, an outer tool cylinder and an inner tool cylinder. The transmission box has a first drive shaft and a second drive shaft arranged coaxially. The outer tool cylinder is installed at the lower end of the first drive shaft and the inner tool cylinder is installed at the lower end of the second drive shaft. The inner tool cylinder is coaxially arranged inside the outer tool cylinder. The inner and outer tool cylinders for sponge drilling are installed by using a transmission box with two coaxial drive shafts, so that the outer tool cylinder and the inner tool cylinder can be driven separately. This allows control of the rotation direction and speed of the inner and outer tool cylinders, improving the stability and processing accuracy of sponge drilling. Since the inner and outer tool cylinders are controlled by two drive shafts, the rotation directions of the inner and outer tool cylinders can be opposite, effectively reducing the drilling torque of the drilling tool set on the sponge, further improving the processing stability and processing accuracy.

[0027] (2) The sponge drilling tool set of the present invention has the lower end of the inner tool cylinder being recessed into the lower end of the outer tool cylinder. On the one hand, the inner tool cylinder can be slightly delayed in drilling the sponge compared to the outer tool cylinder, thus improving the drilling accuracy; on the other hand, the core hole drilled by the inner tool cylinder can be prevented from being drilled through, which facilitates subsequent core removal.

[0028] (3) The sponge drilling tool set of this utility model has a transmission box that also includes a housing. The first drive shaft is rotatably installed in the transmission box through the first bearing, and the second drive shaft is rotatably installed in the first drive shaft through the second bearing. The structure is simple and compact, easy to process and manufacture, and the first drive shaft and the second drive shaft rotate smoothly and stably.

[0029] (4) The sponge drilling tool set of this utility model has a first drive shaft with the upper end of the first drive shaft passing through the housing and a first transmission pulley installed thereon, and a second drive shaft with the upper end of the second drive shaft passing through the upper end of the first drive shaft and a second transmission pulley installed thereon, which further facilitates the driving of the transmission box and adopts a belt drive mechanism, so the transmission is smooth.

[0030] (5) The present invention provides a sponge roller brush processing equipment, which adopts the above-mentioned sponge drilling knife set and uses the reverse rotation of the inner and outer knife cylinders to drill holes, thereby improving the processing accuracy and efficiency of the sponge roller brush.

[0031] (6) The sponge roller brush processing equipment of this utility model adopts a structure in which the sponge body is fixed and the gantry frame moves, which facilitates the fixing of the sponge, avoids the processing error caused by the movement of the sponge, improves the drilling processing stability of the sponge roller brush, and at the same time eliminates the need for secondary cutting of the sponge body after layer cutting, reducing processing steps and sponge waste.

[0032] (7) The sponge roller brush processing equipment of this utility model is provided with a lifting pressure plate mechanism on the gantry frame for pressing down the sponge body on the bed. The lifting pressure plate mechanism is also provided with a blade cooling mechanism for dissipating heat from the outer blade and the inner blade. The lifting pressure plate mechanism can press down the sponge during the drilling process, improve the stability of the drilling action, and prevent the sponge from moving. At the same time, the blade cooling mechanism can move up and down with the lifting pressure plate mechanism, which can better dissipate heat from the inner and outer blades. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of a sponge drilling tool assembly according to a utility model.

[0034] Figure 2 This is a schematic diagram of the transmission box in a sponge drilling tool assembly according to a utility model.

[0035] Figure 3 This is a schematic diagram of the structure of a sponge roller brush processing equipment according to the present invention.

[0036] Explanation of the labels in the diagram:

[0037] 1. Drilling tool set; 11. Transmission box; 11-1. Box body; 11-2. First drive shaft; 11-3. Second drive shaft; 11-4. First bearing; 11-5. Second bearing; 12. Outer tool barrel; 13. Inner tool barrel; 14. First transmission pulley; 15. Second transmission pulley; 2. Y-axis slide; 3. Y-axis drive mechanism; 4. Z-axis slide; 5. Z-axis drive mechanism; 6. Gantry frame; 7. Bed; 8. Lifting pressure plate mechanism; 9. Tool barrel cooling mechanism. Detailed Implementation

[0038] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments.

[0039] [Example 1]

[0040] Combination Figure 1 and Figure 2 As shown, a sponge drilling tool assembly of this embodiment includes a transmission box 11, an outer tool cylinder 12, and an inner tool cylinder 13. The transmission box 11 has a first drive shaft 11-2 and a second drive shaft 11-3 coaxially arranged. The first drive shaft 11-2 is a hollow shaft, and the second drive shaft 11-3 is located inside the first drive shaft 11-2. The outer tool cylinder 12 is installed at the lower end of the first drive shaft 11-2, and the inner tool cylinder 13 is installed at the lower end of the second drive shaft 11-3, coaxially disposed inside the outer tool cylinder 12. The outer tool cylinder 12 can rotate under the drive of the first drive shaft 11-2, and the inner tool cylinder 13 can rotate under the drive of the second drive shaft 11-3, thereby drilling concentric outer circular holes and core holes in the sponge. This embodiment of a sponge drilling tool set utilizes a transmission box 11 with two drive shafts to mount the inner and outer drilling tool cylinders, enabling the outer tool cylinder 12 and the inner tool cylinder 13 to be driven separately. This allows control over the rotation direction and speed of the inner and outer tool cylinders, improving the stability and accuracy of sponge drilling.

[0041] Since the inner and outer tool cylinders are controlled by two drive shafts, their rotation directions can be opposite. In this embodiment, the first drive shaft 11-2 and the second drive shaft 11-3 rotate in opposite directions, thereby controlling the drilling rotation directions of the outer tool cylinder 12 and the inner tool cylinder 13 to be opposite. The drilling rotation resistance of the two can cancel each other out, effectively reducing the drilling torque of the drilling tool assembly 1 on the sponge, and further improving the processing stability and processing accuracy.

[0042] Reference Figure 1 As shown, in this embodiment, the lower end of the inner cutter tube 13 is recessed within the lower end of the outer cutter tube 12. That is, during the drilling process, the outer cutter tube 12 can contact the upper surface of the sponge first to drill, so that the drilling of the sponge by the inner cutter tube 13 is slightly delayed compared to that by the outer cutter tube 12, which can improve the drilling accuracy. In addition, it can prevent the core hole drilled by the inner cutter tube 13 from being drilled through, which facilitates subsequent core removal.

[0043] Specifically, such as Figure 2As shown, in this embodiment, the transmission box 11 further includes a housing 11-1. The first drive shaft 11-2 is rotatably mounted inside the transmission box 11 via a first bearing 11-4, and the second drive shaft 11-3 is rotatably mounted inside the first drive shaft 11-2 via a second bearing 11-5. This transmission box 11 has a simple and compact structure, is easy to manufacture, and ensures smooth and stable rotation of the first drive shaft 11-2 and the second drive shaft 11-3. Furthermore, the upper end of the first drive shaft 11-2 extends from the housing 11-1 and is fitted with a first transmission pulley 14, while the upper end of the second drive shaft 11-3 extends from the upper end of the first drive shaft 11-2 and is fitted with a second transmission pulley 15. A belt drive mechanism can be used to drive the first drive shaft 11-2 and the second drive shaft 11-3 to rotate, resulting in smooth and reliable transmission.

[0044] Compared with existing co-rotating inner and outer cutter cylinders, the sponge drilling cutter assembly of this embodiment can effectively reduce the drilling torque on the sponge because the outer cutter cylinder 12 and the inner cutter cylinder 13 rotate in opposite directions during the drilling process. This results in higher drilling efficiency and higher processing accuracy.

[0045] [Example 2]

[0046] This embodiment relates to a sponge roller brush processing device. For example... Figure 3 As shown, the sponge roller brush processing equipment uses the sponge drilling tool set of Embodiment 1 above, which improves the processing accuracy and efficiency of the sponge roller brush by using the reverse rotation of the inner and outer tool cylinders for drilling.

[0047] Specifically, the sponge roller brush processing equipment includes a bed 7, a gantry frame 6, and a dual-axis motion mechanism. The bed 7 is used to fix the sponge to be processed. The gantry frame 6 spans across the bed 7 and can move relative to the bed 7 along the X-axis. The sponge drilling cutter set 1 is spaced along the width of the bed 7 and is mounted on the gantry frame 6 via the dual-axis motion mechanism, which drives the sponge drilling cutter set to move along the Y-axis and Z-axis. Compared with the existing method of drilling by moving the sponge, the sponge can be directly fixed on the loading table of the bed 7, which facilitates the fixation of the sponge, avoids processing errors caused by sponge movement, improves the drilling stability of the sponge roller brush, and eliminates the need for secondary cutting of the layered sponge, reducing processing steps and sponge waste.

[0048] Furthermore, the aforementioned dual-axis motion mechanism includes a Y-axis slide 2, a Y-axis drive mechanism 3, a Z-axis slide 4, and a Z-axis drive mechanism 5. The Z-axis slide 4 is slidably mounted on the gantry 6 along the Z-axis direction, and the Z-axis drive mechanism 5 is mounted on the gantry 6 to drive the Z-axis slide 4 to move along the Z-axis direction. The Y-axis slide 2 is slidably mounted on the Z-axis slide 4 along the Y-axis direction, and the Y-axis drive mechanism 3 is mounted on the Z-axis slide 4 to drive the Y-axis slide 2 to move along the Y-axis direction. The transmission box 11 of the sponge drilling cutter set is fixedly mounted on the Y-axis slide 2, and a drilling motor for driving the outer cutter cylinder 12 and the inner cutter cylinder 13 to rotate is also mounted on the Y-axis slide 2. During operation, the Z-axis drive mechanism 5 can drive the drilling cutter set 1 to move up and down to control the drilling depth, and the Y-axis drive mechanism 3 can drive the drilling cutter set 1 to move left and right to achieve position switching of the drilling cutter set 1 in the width direction of the bed 7. Both the Y-axis drive mechanism 3 and the Z-axis drive mechanism 5 mentioned above can adopt a lead screw and nut transmission mechanism. The lead screw and nut transmission mechanism is driven by a motor, which provides smooth transmission and higher movement accuracy. The drilling motors mentioned above can be used in one or two sets. When using one set of drilling motors, an intermediate transmission mechanism can be used to change the single-axis output of the drilling motor to a dual-axis output, and the rotation directions of the two output shafts are opposite to control the rotation directions of the inner and outer cutter cylinders to be opposite. When using two sets of drilling motors, the inner and outer cutter cylinders can be driven separately.

[0049] like Figure 3 As shown, the gantry frame 6 is also equipped with a lifting pressure plate mechanism 8 for pressing down the sponge on the bed 7. The lifting pressure plate mechanism 8 is also equipped with a tool cylinder cooling mechanism 9 for dissipating heat from the outer tool cylinder 12 and the inner tool cylinder 13. The lifting pressure plate mechanism 8 can press down the sponge with the pressure plate during drilling, improving the stability of the drilling operation and preventing the sponge from moving; at the same time, the tool cylinder cooling mechanism 9 can move up and down with the lifting pressure plate mechanism 8, which can better utilize air cooling to dissipate heat from the inner and outer tool cylinders.

[0050] As for the other structures and working principles of the sponge roller brush processing equipment, they are similar to existing technologies, so they will not be described in detail here.

[0051] This utility model discloses a sponge drilling tool assembly and a sponge roller brush processing device. It utilizes a transmission box with two coaxial drive shafts to mount the inner and outer drilling tool cylinders, allowing the outer and inner cylinders to be driven independently. This enables control over the rotation direction and speed of the inner and outer cylinders, improving the stability and accuracy of sponge drilling. Because the inner and outer cylinders are controlled by two drive shafts, their rotation directions are opposite, effectively reducing the drilling torque exerted on the sponge by the drilling tool assembly, further enhancing processing stability and accuracy.

[0052] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A sponge drilling tool assembly, characterized in that: include The transmission box (11) has a first drive shaft (11-2) and a second drive shaft (11-3) arranged coaxially. An outer cutter barrel (12) is mounted on the lower end of the first drive shaft (11-2); The inner cutter cylinder (13) is installed at the lower end of the second drive shaft (11-3) and is coaxially disposed inside the outer cutter cylinder (12).

2. The sponge drilling tool assembly according to claim 1, characterized in that: The first drive shaft (11-2) and the second drive shaft (11-3) rotate in opposite directions.

3. The sponge drilling tool assembly according to claim 2, characterized in that: The lower end of the inner blade (13) is recessed within the lower end of the outer blade (12).

4. The sponge drilling tool assembly according to claim 1, 2, or 3, characterized in that: The transmission box (11) further includes a housing (11-1), the first drive shaft (11-2) is rotatably mounted in the transmission box (11) via a first bearing (11-4), and the second drive shaft (11-3) is rotatably mounted in the first drive shaft (11-2) via a second bearing (11-5).

5. The sponge drilling tool assembly according to claim 4, characterized in that: The upper end of the first drive shaft (11-2) extends out of the housing (11-1) and is fitted with a first transmission pulley (14). The upper end of the second drive shaft (11-3) extends out of the upper end of the first drive shaft (11-2) and is fitted with a second transmission pulley (15).

6. A sponge roller brush processing equipment, characterized in that: The sponge drilling tool set according to any one of claims 1 to 5 is used.

7. The sponge roller brush processing equipment according to claim 6, characterized in that: include Bed (7), the bed (7) is used to fix and place the sponge body to be processed; A gantry frame (6) spans across the bed (7) and is able to move relative to the bed (7) along the X-axis. The sponge drilling cutter group is arranged at intervals along the width direction of the bed (7) and is installed on the gantry (6) through the dual-axis motion mechanism. The sponge drilling cutter group is driven to move along the Y-axis and Z-axis through the dual-axis motion mechanism.

8. The sponge roller brush processing equipment according to claim 7, characterized in that: The dual-axis motion mechanism includes a Y-axis slide (2), a Y-axis drive mechanism (3), a Z-axis slide (4), and a Z-axis drive mechanism (5). The Z-axis slide (4) is slidably mounted on the gantry (6) along the Z-axis direction. The Z-axis drive mechanism (5) is mounted on the gantry (6) and is used to drive the Z-axis slide (4) to move along the Z-axis direction. The Y-axis slide (2) is slidably mounted on the Z-axis slide (4) along the Y-axis direction. The Y-axis drive mechanism (3) is mounted on the Z-axis slide (4) and is used to drive the Y-axis slide (2) to move along the Y-axis direction. The transmission box (11) of the sponge drilling tool set is fixedly mounted on the Y-axis slide (2). The Y-axis slide (2) is also equipped with a drilling motor for driving the outer tool cylinder (12) and the inner tool cylinder (13) to rotate.

9. The sponge roller brush processing equipment according to claim 8, characterized in that: Both the Y-axis drive mechanism (3) and the Z-axis drive mechanism (5) adopt a lead screw and nut transmission mechanism.

10. The sponge roller brush processing equipment according to claim 7, 8, or 9, characterized in that: The gantry frame (6) is also provided with a lifting pressure plate mechanism (8) for pressing down the sponge body on the bed (7), and the lifting pressure plate mechanism (8) is also provided with a blade cooling mechanism (9) for dissipating heat from the outer blade cylinder (12) and the inner blade cylinder (13).

Images