Slider connection, drive column and 3D printer

Abstract

The utility model discloses a slider connecting piece, drive stand and 3D printer to solve the technical problem of inconvenient installation and insufficient stability of the existing 3D printer slider connecting piece. The utility model discloses a bottom plate, mounting block, clamping post, the mounting block includes setting in the side surface of bottom plate, first mounting block for with slider fixed connection, the clamping post includes setting on the bottom plate and the first stand and second stand of up and down arrangement, and there is the clamping gap between first stand and second stand, and the position of first stand faces the clamping gap and is provided with first pawl, and the position of second stand faces the clamping gap and is provided with second pawl, first installation groove is formed between the clamping post and first mounting block, and the head and tail of toothed transmission belt all pass through the clamping gap. The utility model has the advantages of convenient installation and strong stability.

Description

Technical Field

[0001] This utility model relates to the field of 3D printer technology, specifically to a slider connector, a drive column, and a 3D printer. Background Technology

[0002] 3D printers can conveniently and quickly produce desired three-dimensional physical models. They connect to the print head via a connecting arm and use automatic control to directly print finished products, finding wide application in various fields. The connecting arm connects to a slider and a guide rail, with the slider driven by a transmission belt. Currently, there are generally two ways to connect the transmission belt and slider: one is to fold the two ends of the transmission belt and then snap them into slots; the other is to fix it with a pressure block. However, these methods have the following problems: 1. Inconvenient installation: slot installation requires fixing at both ends, while pressure block installation requires positioning before installing the slider; 2. Insufficient stability: slot and pressure block installations rely entirely on friction, making them prone to slippage. Furthermore, they can only accommodate one type of transmission belt, especially slot installation, where thicker belts cannot fit into the slots, and thinner belts cannot be fixed; 3. Heavy weight, affecting stability: a heavy slider has high inertia during movement, and the slider's stability is positively correlated with its weight. Utility Model Content

[0003] This invention provides a slider connector, a drive column, and a 3D printer to solve the technical problems of inconvenient installation and insufficient stability of existing 3D printer slider connectors.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: Design a slider connector for connecting a toothed drive belt, including a base plate, a mounting block, and snap-fit ​​posts. The mounting block includes a first mounting block disposed on the side of the base plate for fixed connection with the slider. The snap-fit ​​posts include a first post and a second post disposed on the base plate and arranged vertically, with a snap-fit ​​gap between the first post and the second post. The first post has a first snap tooth facing the snap-fit ​​gap, and the second post has a second snap tooth facing the snap-fit ​​gap. A first mounting groove is formed between the snap-fit ​​posts and the first mounting block. The head and tail of the toothed drive belt pass through the snap-fit ​​gap. The head of the toothed drive belt snaps with the first snap tooth, and the tail of the toothed drive belt snaps with the second snap tooth. The head and tail of the toothed drive belt are fixedly connected outside the snap-fit ​​gap, and the width of the connection is greater than the width of the snap-fit ​​gap. The head of the toothed drive belt goes around the first post and enters the first mounting groove upwards, and the tail of the toothed drive belt goes around the second post and enters the first mounting groove downwards.

[0005] Furthermore, the surfaces of the snap-fit ​​post and the first mounting block facing each other are planes, the cross-section of the snap-fit ​​post is semi-circular, triangular or quadrilateral, and the bottom corners of the snap-fit ​​post are formed as the first snap-fit ​​tooth and the second snap-fit ​​tooth.

[0006] Furthermore, the mounting block also includes a second mounting block, which and the first mounting block are located on opposite sides of the base plate.

[0007] Furthermore, a second mounting groove is formed between the second mounting block and the snap-fit ​​post, a step portion higher than the base plate is provided below the snap-fit ​​post, and a protrusion for photoelectric detection is provided on the second mounting block.

[0008] The second aspect of this utility model is the design of a drive column for driving the nozzle connecting arm of a 3D printer. The column includes the aforementioned slider connector, a column body, a slider, a toothed transmission belt, a drive motor, and a positioning component. A slide rail is provided on the column body, the slider is mounted on the slide rail, the slider connector is fixed to the slider, a drive shaft is connected to the drive motor, and a driven shaft is mounted on the positioning component. The two ends of the toothed transmission belt are respectively connected to the drive shaft and the driven shaft. The head and tail of the toothed transmission belt are engaged in the engagement gap on the slider connector, with the head facing upwards and the tail downwards, and are mounted in a first mounting groove.

[0009] Furthermore, the mounting block of the slider connector has a fixing hole at the bottom, and a fastening screw that is fixedly connected to the slider is installed in the fixing hole. The upper part of the slider connector is connected to a horizontal plate, and spherical parts are provided on both sides of the horizontal plate for connecting the nozzle connecting arm.

[0010] Furthermore, the drive motor is fixed to the column body by a motor mounting plate, and an elastic shim is provided between the drive motor and the motor mounting plate to adjust the level of the drive shaft. The toothed transmission belt is provided with an elastic clip to compensate for the tightness.

[0011] Furthermore, the positioning component includes a positioning block, a positioning screw, and a first clamping nut. The positioning screw passes through the positioning block and cooperates with the first clamping nut to fix the positioning block on the slide rail. The front surface of the positioning block is provided with a bearing as the driven shaft.

[0012] Furthermore, the slide rail is also provided with a positioning component adjustment component, which includes an adjustment platform and a screw. The adjustment platform is fixed to the slide rail by a second clamping nut. The adjustment platform is provided with a vertical guide groove, and the screw is disposed in the guide groove. The positioning component is provided with an abutment nut, and the screw and the abutment nut are matched and connected.

[0013] The third aspect of this utility model is: designing a 3D printer, including at least three drive columns as described above, the drive columns being arranged vertically and parallel to each other, the drive columns being connected to a nozzle connecting arm via a slider connector, and the end of the nozzle connecting arm being connected to a printing nozzle.

[0014] Compared with the prior art, the beneficial technical effects of this utility model are as follows: 1. This utility model is easy to install. First, fix both ends of the transmission belt with cable ties and then install it in the snap-fit ​​gap. Then, install both ends of the annular transmission belt on the drive shaft and the driven shaft. The transmission belt can be installed after other components are installed. It has a large installation space and is convenient for maintenance.

[0015] 2. This utility model has high stability. The inner side of the snap-fit ​​post forms snap-fit ​​teeth, and the toothed transmission belt and snap-fit ​​teeth are engaged, so there will be no slippage or other phenomena.

[0016] 3. The head and tail of this utility model are fixedly installed in the snap-fit ​​gap with cable ties, and then extend out from the first mounting groove. The width of the mounting groove is not limited by the end snap-fit ​​method, so it can adapt to different specifications of transmission belts.

[0017] 4. The slider connector of this utility model weighs only 13g, which reduces inertia and improves printing accuracy. It is made of aluminum material, which makes it more stable. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the slider connector in Embodiment 1 of this utility model.

[0019] Figure 2 for Figure 1 A bottom view.

[0020] Figure 3 This is an assembly diagram of the slider connector in Embodiment 1 of this utility model.

[0021] Figure 4 This is a schematic diagram of the slider connector in Embodiment 2 of this utility model.

[0022] Figure 5 for Figure 4 A bottom view.

[0023] Figure 6 This is an assembly diagram of the slider connector in Embodiment 2 of this utility model.

[0024] Figure 7 This is a schematic diagram of the slider connector in Embodiment 3 of this utility model.

[0025] Figure 8 This is a schematic diagram of the slider connector in Embodiment 4 of this utility model.

[0026] Figure 9 This is a schematic diagram of the slider connector in Embodiment 5 of this utility model.

[0027] Figure 10 This is a schematic diagram of the slider installation in Embodiment 5 of this utility model.

[0028] Figure 11 This is a schematic diagram of the structure of the drive column of this utility model.

[0029] Figure 12 for Figure 7 A magnified view of A in the middle.

[0030] Figure 13 for Figure 7 A magnified view of B in the middle.

[0031] Figure 14 for Figure 7 A magnified view of C.

[0032] Figure 15 This is a schematic diagram of the positioning component adjustment part of this utility model.

[0033] Figure 16 This is a schematic diagram of the connection of the toothed transmission belt of this utility model.

[0034] Figure 17 This is a schematic diagram of the structure of the 3D printer of this utility model.

[0035] In the figure, the components are: base plate 1, step 11, first mounting block 21, second mounting block 22, fixing hole 23, connecting hole 24, fastening screw 25, first column 31, second column 32, snap-fit ​​gap 33, first snap tooth 34, second snap tooth 35, protrusion 4, column 41, first mounting groove 5, second mounting groove 6, toothed transmission belt 7, cable tie 71, horizontal plate 8, spherical part 81, column body 101, slider 102, drive motor 103, positioning component 104, slider connector 105, motor mounting plate 1031, elastic washer 1032, positioning component 104, positioning block 1041, positioning screw 1042, first clamping nut 1043, adjusting platform 1044, screw 1045, bearing 1046, second clamping nut 1047, nozzle connecting arm 201, and printing nozzle 202. Detailed Implementation

[0036] The specific embodiments of this utility model will be described below with reference to the accompanying drawings and examples. However, the following examples are only used to illustrate this utility model in detail and do not limit the scope of this utility model in any way.

[0037] Example 1: A slider connector, see Figure 1 and Figure 2The device is used to connect the toothed transmission belt 6 and includes a base plate 1, mounting blocks, and snap-fit ​​posts. The mounting blocks include a first mounting block 21 and a second mounting block 22 disposed on both sides of the base plate for fixed connection with the slider. The snap-fit ​​posts include a first post 31 and a second post 32 disposed on the base plate and arranged vertically. There is a snap-fit ​​gap 33 between the first post 31 and the second post 32. The first post 31 is provided with a first snap tooth 34 facing the snap-fit ​​gap, and the second post 32 is provided with a second snap tooth 35 facing the snap-fit ​​gap. The surfaces of the snap-fit ​​posts and the first mounting block 21 are planes. In this embodiment, the cross-section of the snap-fit ​​posts is semi-circular, and the bottom corner of the semi-circular shape forms the aforementioned first snap tooth and second snap tooth.

[0038] A first mounting groove 5 is formed between the snap-fit ​​post and the first mounting block 21, and a second mounting groove 6 is formed between the snap-fit ​​post and the second mounting block 22. The installation of the toothed drive belt 7 is described in detail below. Figure 14 Both the head and tail of the toothed transmission belt 7 pass through the snap-fit ​​gap 33. The head of the toothed transmission belt 7 snaps with the first snap tooth 34, and the tail snaps with the second snap tooth 35. The head and tail of the toothed transmission belt 7 are fixedly connected outside the snap-fit ​​gap by a cable tie 71. The width of the resulting connection is greater than the width of the snap-fit ​​gap 33. The head of the toothed transmission belt 7 goes around the first column 31 and enters the first mounting groove 5 upwards. The tail goes around the second column 32 and enters the first mounting groove 5 downwards. The middle part of the toothed transmission belt 7 is located in the second mounting groove 6.

[0039] The second mounting block 22 is also provided with a protrusion 4 for photoelectric detection. When the slider moves to the top of the printer, the protrusion 4 triggers photoelectric detection for limiting. Below the snap-fit ​​post, there is a step 11 that is higher than the base plate, so that the toothed drive belt 7 is suspended in the second mounting groove 6 to prevent friction with the base plate.

[0040] See Figure 3 The first mounting block 21 and the second mounting block 22 are provided with fixing holes 23 at their lower parts. The fixing holes 23 are used to install fastening screws 25 that are fixedly connected to the slider. The first mounting block 21 and the second mounting block 22 are provided with connecting holes 24 at their upper parts. The horizontal plate 8 is fixed to the slider connector in the connecting holes 24 by screws. The two sides of the horizontal plate 8 are provided with spherical parts 81 for connecting the nozzle connecting arm. In other embodiments, the spherical parts can also be replaced with joint bearings.

[0041] Example 2: See Figures 4 to 6The difference from Embodiment 1 is that the spacing in Embodiment 1 is 50mm, which is suitable for a horizontal plate 8 with a hole spacing of 50mm. Since the fixing hole 23 needs to match the slider, the spacing is fixed at 40mm. Therefore, in Embodiment 1, the connecting hole 24 protrudes from the outside of the mounting block. In this embodiment, the spacing of the connecting hole 24 is 40mm, which is suitable for a horizontal plate 8 with a hole spacing of 40mm. Since the spacing of the connecting hole 24 is the same as that of the fixing hole 23, the connecting hole 24 and the fixing hole 23 are on the same line and do not need to protrude from the mounting block.

[0042] Example 3: See Figure 7 The difference from Example 1 is that the cross-section of the snap-fit ​​post is triangular.

[0043] Example 4: See Figure 8 The difference from Example 1 is that the cross-section of the snap-fit ​​post is quadrilateral.

[0044] Example 5: See Figure 9 and Figure 10 The difference from Embodiment 1 is that the upper surface of the slider connector in this embodiment is flat and does not contain the protrusion 4, making it suitable for mechanical switches or proximity switches, while the protrusion 4 is adapted for photoelectric switches. Furthermore, this embodiment does not have the connecting hole 24, and the horizontal plate 8 is mounted on the slider 102 via two columns 41.

[0045] Example 6: A drive column for driving the nozzle connecting arm of a 3D printer, see [link to example]. Figures 9 to 13 This includes any one of the slider connectors in Embodiments 1-4. This embodiment uses the slider connector from Embodiment 1 as an example. The drive column also includes a column body 101, a slider 102, a toothed transmission belt 7, a drive motor 103, and a positioning component 104. The column body 101 is made of aluminum profile and has a grooved slide rail. The slider 102 is mounted on the slide rail, and the slider connector 105 is fixed to the slider 102. A drive shaft is connected to the drive motor 103, and a driven shaft is mounted on the positioning component. The toothed transmission belt 7 is annular, with both ends connected to the drive shaft and the driven shaft, respectively. The head and tail of the toothed transmission belt 7 are fixedly connected with cable ties, and the connection point is engaged in the engagement gap of the slider connector 105. (See also...) Figure 14 The toothed drive belt 7 is installed in the first mounting groove of the slider connector 105 with its head facing upward and its tail facing downward.

[0046] The drive motor 103 is fixed to the column body 101 via a motor mounting plate 1031. An elastic washer 1032 is provided between the drive motor 103 and the motor mounting plate 1031 to adjust the levelness of the drive shaft. Specifically, the drive motor 103 is fixed at its four corners with screws. Adjusting the tightness of the screws can adjust the depth of the motor pressing against the elastic washer 1032, thereby changing the tilt angle of the drive motor 103. Furthermore, to compensate for the deformation of the toothed transmission belt 7 during use, elastic clips, such as synchronous belt locking springs, can be installed on the toothed transmission belt 7. This facilitates belt tensioning and compensates for deformation during use.

[0047] The positioning component 104 includes a positioning block 1041, a positioning screw 1042, and a first clamping nut 1043. The positioning screw 1042 passes through the positioning block and cooperates with the first clamping nut 1043 to fix the positioning block 1041 on the slide rail. The first clamping nut 1043 is a standard T-shaped nut that can be directly inserted into the aluminum profile groove and can automatically position and lock during installation. The front surface of the positioning block 1042 is provided with a bearing 1046 as a driven shaft. A shim is placed between the first clamping nut 1043 and the positioning block 1041 to adjust the level of the driven shaft.

[0048] The slide rail is also equipped with a positioning component adjustment component, which includes an adjustment platform 1044 and a screw 1045. The adjustment platform 1044 is fixed to the slide rail by a second clamping nut 1047. The adjustment platform 1044 is provided with a vertical guide groove, and the screw 1045 is set in the guide groove. An abutment groove is provided below the positioning block 1041, and an abutment nut is provided in the abutment groove. The screw 1045 and the abutment nut are matched and connected. When in use, the positioning screw 1042 is loosened and the screw 1045 is rotated to precisely adjust the position of the positioning component 104.

[0049] Example 7: A 3D printer includes at least three drive columns as in Example 5. The drive columns are arranged vertically in a triangular configuration. The drive columns are connected to the nozzle connecting arm 201 via a slider and a slider connector. The end of the nozzle connecting arm 201 is connected to the print nozzle 202.

[0050] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. However, those skilled in the art will understand that, without departing from the spirit of the present invention, various specific parameters in the above embodiments can be changed to form multiple specific embodiments, all of which are common variations of the present invention, and will not be described in detail here.

Claims

1. A slider link for connecting a toothed drive belt, characterized in that The device includes a base plate, a mounting block, and locking posts. The mounting block includes a first mounting block disposed on the side of the base plate for fixed connection with a slider. The locking posts include a first post and a second post disposed on the base plate and arranged vertically, with a locking gap between the first post and the second post. The first post has a first locking tooth facing the locking gap, and the second post has a second locking tooth facing the locking gap. A first mounting groove is formed between the locking posts and the first mounting block. The head and tail of the toothed transmission belt pass through the locking gap. The head of the toothed transmission belt engages with the first locking tooth, and the tail of the toothed transmission belt engages with the second locking tooth. The head and tail of the toothed transmission belt are fixedly connected outside the locking gap, and the width of the connection is greater than the width of the locking gap. The head of the toothed transmission belt bypasses the first post and enters the first mounting groove upwards, and the tail of the toothed transmission belt bypasses the second post and enters the first mounting groove downwards.

2. The slider link of claim 1, wherein The surfaces of the snap-fit ​​post and the first mounting block that are opposite each other are planes. The cross-section of the snap-fit ​​post is semi-circular, triangular, or quadrilateral, and the bottom corners of the snap-fit ​​post are formed as the first snap tooth and the second snap tooth.

3. The slider link of claim 1, wherein, The mounting block also includes a second mounting block, which and the first mounting block are located on opposite sides of the base plate.

4. The slider link of claim 3, wherein, A second mounting groove is formed between the second mounting block and the snap-fit ​​post. A step portion higher than the base plate is provided below the snap-fit ​​post, and a protrusion for photoelectric detection is provided on the second mounting block.

5. A drive column for driving a nozzle connecting arm of a 3D printer, characterized in that, The slider connector according to any one of claims 1-4 further includes a column body, a slider, a toothed transmission belt, a drive motor, and a positioning component. The column body is provided with a slide rail, the slider is mounted on the slide rail, the slider connector is fixed on the slider, the drive motor is connected to a drive shaft, the positioning component is mounted with a driven shaft, the two ends of the toothed transmission belt are respectively connected to the drive shaft and the driven shaft, and the head and tail of the toothed transmission belt are engaged in the engagement gap on the slider connector, with the head facing upward and the tail facing downward, and are mounted in the first mounting groove.

6. The drive column of claim 5, wherein, The mounting block of the slider connector has a fixing hole at the bottom, and a fastening screw that is fixedly connected to the slider is installed in the fixing hole. The upper part of the slider connector is connected to a horizontal plate, and spherical parts are provided on both sides of the horizontal plate for connecting the nozzle connecting arm.

7. The drive column of claim 5, wherein, The drive motor is fixed to the column body by a motor mounting plate. An elastic shim is provided between the drive motor and the motor mounting plate to adjust the level of the drive shaft. An elastic clip is provided on the toothed transmission belt to compensate for the tightness.

8. The drive column of claim 5, wherein, The positioning component includes a positioning block, a positioning screw, and a first clamping nut. The positioning screw passes through the positioning block and cooperates with the first clamping nut to fix the positioning block on the slide rail. The front surface of the positioning block is provided with a bearing as the driven shaft.

9. The drive column of claim 5, wherein, The slide rail is also provided with a positioning component adjustment component, which includes an adjustment platform and a screw. The adjustment platform is fixed to the slide rail by a second clamping nut. The adjustment platform is provided with a vertical guide groove, and the screw is disposed in the guide groove. The positioning component is provided with an abutment nut, and the screw and the abutment nut are matched and connected.

10. A 3D printer characterized by, The drive column comprises at least three drive columns as claimed in claim 5, which are arranged vertically in parallel, and the drive column is connected to the nozzle connecting arm through the sliding block connecting piece, and the nozzle connecting arm is connected to the printing nozzle at the end.

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