Plastic defect pocking spot sampling equipment

Abstract

The utility model relates to plastic defect spot sampling equipment. The plastic defect spot sampling equipment comprises a sample feeding mechanism and a sample cutting mechanism which are arranged on a rack up and down, the sample feeding mechanism comprises a feeding sliding plate which is horizontally arranged in a sliding mode, a feeding driving assembly used for driving a feeding guide rail set to move, and a sample clamping plate arranged on the feeding sliding plate. The sample cutting mechanism comprises a cutting sliding plate, a cutting shaft cam and a cutting driving assembly; the cutting sliding plate is vertically arranged in a sliding manner and is provided with an upper outward-extending boss and a lower outward-extending boss in parallel; the cutting shaft cam is rotationally arranged and is in rolling contact with the lower edge of the upper outward-extending boss and the lower outward-extending boss; the cutting driving assembly is used for driving the cutting shaft cam to rotate; and the cutter is arranged on the cutting sliding plate and is used for cutting the sample. Compared with the prior art, the utility model overcomes the defects existing in manual operation, and has the advantages of compact and small equipment appearance, program-controlled automatic cutting and the like, the cutting thickness is adjustable within the range of 0.02-0.1 mm, and the cut plastic defect points are convenient for relevant treatment before detection.

Description

Technical Field

[0001] The utility model belongs to the technical field of plastic slicing equipment and relates to a sampling device for plastic defect pitting. Background Art

[0002] Various defects often exist on the surface and inside of plastic products, such as weld lines, flow marks, air marks, silver streaks, pitting, etc. Among them, when analyzing and detecting pitting and fine impurity points using relevant professional equipment, it is necessary to first sample and prepare samples. At present, the sampling methods include manual cutting, and it is difficult to master the sampling thickness; after resin embedding and fixing, grinding is used, but it is easy to contaminate the impurity points and affect subsequent analysis and detection. These two sampling methods are completely manual operations, time-consuming and laborious and not easy to succeed. Content of the Utility Model

[0003] The purpose of the utility model is to provide a sampling device for plastic defect pitting, which is used to overcome the defects existing in the above manual operations, and has the advantages of compact and small appearance of the device, programmed automatic cutting, etc. The cutting thickness is adjustable within the range of 0.02 - 0.1 mm, and the plastic defect points cut are convenient for related processing before detection.

[0004] The purpose of the utility model can be realized by the following technical solutions:

[0005] A sampling device for plastic defect pitting includes a cutting device, and the cutting device includes a frame, and a sample feeding mechanism and a sample cutting mechanism which are arranged on the frame, one below the other;

[0006] The sample feeding mechanism includes a feeding guide rail group horizontally arranged on the frame, a feeding slide plate slidably arranged on the feeding guide rail group, a feeding driving component for driving the feeding guide rail group to move, and a sample clamping plate arranged on the feeding slide plate for clamping the sample;

[0007] The sample cutting mechanism includes a cutting guide rail group vertically arranged on the frame, a cutting slide plate slidably arranged on the cutting guide rail group and having an upper outstretched boss and a lower outstretched boss arranged in parallel, a cutting shaft cam rotatably arranged and in rolling contact with the lower edge of the upper outstretched boss and / or the lower outstretched boss, a cutting driving component for driving the cutting shaft cam to rotate, and a cutter arranged on the cutting slide plate for cutting the sample;

[0008] During use, the cutting driving component drives the cam to rotate. There are outstretched bosses above and below one side of the cutting slide plate, and the cam is in rolling contact with the upper and lower bosses, driving the cutting slide plate to move up and down along the established cutting guide rail group, realizing the up and down cutting action of the cutter. The up and down displacement stroke of the cutter is 2 times the eccentricity of the cam;

[0009] The feeding driving component drives the feeding slide plate to move back and forth along the cutting guide rail group, thereby adjusting the front and back positions of the sample relative to the cutter and controlling the cutting thickness.

[0010] Furthermore, the frame includes a frame bottom plate, frame side plates connected to the frame bottom plate, and a feed shaft motor mounting plate and a cutting shaft motor mounting plate provided on the frame side plates;

[0011] The feed guide rail group is provided on the frame bottom plate, the cutting guide rail group is provided on the frame side plates, the feed drive assembly is provided on the feed shaft motor mounting plate, and the cutting drive assembly is provided on the cutting shaft motor mounting plate.

[0012] Furthermore, the frame side plates are oppositely provided on both sides of the frame bottom plate. The cutting guide rail group includes cutting guide rails respectively provided on the corresponding frame side plates, and both sides of the cutting slide plate are respectively slidably connected to the corresponding cutting guide rails.

[0013] Furthermore, a relief hole groove is provided on one side of the frame bottom plate, and a material receiving box is provided in the relief hole groove. The material receiving box is located below the sample. The material receiving box is used to collect the cut substances.

[0014] Furthermore, the feed drive assembly includes a feed shaft motor provided on the feed shaft motor mounting plate, and a feed screw pair provided between the feed shaft motor and the feed slide plate;

[0015] The screw in the feed screw pair is rotationally connected to the feed shaft motor, and the nut is fixedly connected to the feed slide plate.

[0016] Furthermore, the cutting drive assembly includes a cutting shaft motor provided on the cutting shaft motor mounting plate.

[0017] Furthermore, an adjustment groove is provided on the cutting slide plate along the sliding direction. A cutter adjustment seat is provided on the adjustment groove. The cutter adjustment seat includes an adjustment seat and a fixed seat fixedly arranged one above the other in the adjustment groove;

[0018] The cutter is pressed in the adjustment groove through the fixed seat, and the lower cutting edge of the cutter extends out of the lower edge of the adjustment groove;

[0019] An adjustment threaded hole is provided on the adjustment seat, and an adjustment bolt is screwed in the adjustment threaded hole. The lower end of the adjustment bolt abuts against the upper end of the cutter.

[0020] Furthermore, a slot adapted to the side wall of the cutter is provided on one side of the fixed seat. The cutter is clamped between the slot and the adjustment groove,

[0021] The fixed seat is fixed to the adjustment groove by bolts.

[0022] Furthermore, the equipment further includes a first limit switch and a second limit switch respectively provided on the frame and the feed slide plate, and a programmable controller respectively electrically connected to the feed drive assembly, the cutting drive assembly, the first limit switch and the second limit switch.

[0023] Further, the device further includes a device housing, and the cutting device is disposed inside the device housing.

[0024] Compared with the prior art, the present utility model has the following beneficial effects:

[0025] In the present utility model, the rotation of the cutting shaft cam drives the up and down displacement of the cutting slide plate, and further realizes the up and down cutting of the cutter on the cutting slide plate. The feed driving component drives the forward and backward displacement of the feed slide plate to adjust the front and back positions of the sample on the feed slide plate relative to the cutter, and control the cutting thickness. It has the advantages of compact and small appearance of the device and programmable automatic cutting. The cutting thickness is adjustable within the range of 0.02 - 0.1 mm, and the plastic defect points cut off are convenient for relevant processing before detection. Description of the Drawings

[0026] Figure 1 is a schematic structural diagram of a plastic defect pitting sampling device in the present utility model;

[0027] Figure 2 is a three-dimensional structure diagram of the cutting device;

[0028] Figure 3 is a top view of the cutting device;

[0029] Figure 4 is an exploded view of the cutting device;

[0030] Figure 5 is an exploded view of the installation structure of the cutter and the sample in a plastic defect pitting sampling device in the present utility model.

[0031] Explanation of the marks in the figure:

[0032] Power supply 1, programmable controller 2, device housing 3, cutting device 4, material receiving box 5;

[0033] Cutting shaft motor 401, feed shaft motor 402, cutting shaft motor mounting plate 403, feed shaft motor mounting plate 404, frame side plate 405, frame bottom plate 406, connecting bracket 407, cutting slide plate 408, cutter adjustment seat 409, cutter pressing plate 410, cutter 411, sample pressing plate 412, sample 413, feed slide plate 414, cutting shaft cam 415, first limit switch 416, second limit switch 417, feed shaft guide rail group 418, cutting shaft guide rail group 419, drive plate 420, drive plate 421, feed lead screw pair 422. Detailed Embodiment

[0034] The present utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments. The following embodiments are implemented on the premise of the above technical solutions of the present utility model, and detailed implementation manners and specific operation processes are given, but the protection scope of the present utility model is not limited to the following embodiments.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0036] Some embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0037] Embodiment 1:

[0038] As Figures 1-3 shown, a plastic defect pitting sampling device includes a cutting device 4. The cutting device 4 includes a frame, and a sample feeding mechanism and a sample cutting mechanism which are arranged on the frame, one below the other. The sample feeding mechanism includes a feeding guide rail group 418 horizontally arranged on the frame, a feeding slide plate 414 slidably arranged on the feeding guide rail group 418, a feeding driving component for driving the feeding guide rail group 418 to move, and a sample clamping plate 412 arranged on the feeding slide plate 414 for clamping a sample 413. The sample cutting mechanism includes a cutting guide rail group 419 vertically arranged on the frame, a cutting slide plate 408 slidably arranged on the cutting guide rail group 419 and having an upper outer protrusion and a lower outer protrusion arranged in parallel, a cutting shaft cam 415 rotatably arranged and in rolling contact with the lower edge of the upper outer protrusion and / or the lower outer protrusion, a cutting driving component for driving the cutting shaft cam 415 to rotate, and a cutting tool 411 arranged on the cutting slide plate 408 for cutting the sample 413.

[0039] During use, the cutting driving component drives the cutting shaft cam 415 to rotate. There are outer protrusions above and below one side of the cutting slide plate. The cutting shaft cam 415 is in rolling contact with the upper and lower outer protrusions, driving the cutting slide plate to move up and down along the established cutting guide rail group, realizing the up and down cutting action of the cutting tool. The up and down displacement stroke of the cutting tool is 2 times the eccentricity of the cutting shaft cam 415;

[0040] The cutting driving component drives the cutting shaft cam 415 to rotate, and through the sliding contact between the outer edge of the cutting shaft cam 415 and the outer protrusion, drives the cutting slide plate 408 to reciprocate up and down along the established feeding guide rail group 418, thereby realizing the up and down cutting action of the cutting tool 411;

[0041] The feeding driving component drives the feeding slide plate 414 to move back and forth along the cutting guide rail group 419, thereby adjusting the front and rear positions of the sample 413 relative to the cutting tool 411 and controlling the cutting thickness.

[0042] Specifically, the distance between the upper protruding boss and the lower protruding boss is equal to the maximum outer edge distance of the cutting shaft cam 415, so that the cutting shaft cam 415 maintains rolling contact with the upper protruding boss and the lower protruding boss, effectively lifting or pressing down the cutting slide plate 408.

[0043] In some specific embodiments, the frame includes a frame bottom plate 406, a frame side plate 405 connected to the frame bottom plate 406, a feed shaft motor mounting plate 404 and a cutting shaft motor mounting plate 403 provided on the frame side plate 405; a feed guide rail group 418 is provided on the frame bottom plate 406, a cutting guide rail group 419 is provided on the frame side plate 405, a feed drive assembly is provided on the feed shaft motor mounting plate 404, and a cutting drive assembly is provided on the cutting shaft motor mounting plate 403.

[0044] In some more specific embodiments, the frame side plates 405 are relatively arranged on both sides of the frame bottom plate 406. The cutting guide rail group 419 includes cutting guide rails respectively provided on the corresponding frame side plates 405, and both sides of the cutting slide plate 408 are slidably connected to the corresponding cutting guide rails.

[0045] In some specific embodiments, a relief hole groove is provided on one side of the frame bottom plate 406, and a receiving box 5 is provided in the relief hole groove. The receiving box 5 is located below the sample 413. The receiving box 5 is used to collect the cut substances.

[0046] In some specific embodiments, the feed drive assembly includes a feed shaft motor 402 provided on the feed shaft motor mounting plate 404, and a feed lead screw pair 422 provided between the feed shaft motor 402 and the feed slide plate 414; the lead screw in the feed lead screw pair 422 is rotatably connected to the feed shaft motor 402, and the nut is fixedly connected to the feed slide plate 414.

[0047] In some specific embodiments, the cutting drive assembly includes a cutting shaft motor 401 provided on the cutting shaft motor mounting plate 403.

[0048] In some specific embodiments, as Figure 4 shown, an adjustment groove is formed in the cutting slide plate 408 along the sliding direction. A cutter adjustment seat 409 is provided on the adjustment groove. The cutter adjustment seat 409 includes an adjustment seat 4091 and a fixed seat 4092 fixedly arranged one above the other in the adjustment groove; the cutter 411 is pressed in the adjustment groove through the fixed seat 4092, and the lower cutting edge of the cutter 411 extends out of the lower edge of the adjustment groove; an adjustment threaded hole is formed in the adjustment seat 4091, and an adjustment bolt 4093 is screwed in the adjustment threaded hole. The lower end of the adjustment bolt 4093 abuts against the upper end of the cutter 411.

[0049] In some specific embodiments, a slot adapted to the side wall of the cutting knife 411 is formed on one side of the fixing base 4092. The cutting knife 411 is clamped between the slot and the adjustment slot, and the fixing base 4092 is fixed to the adjustment slot by a fixing bolt 4094.

[0050] In some specific embodiments, the device further includes a first limit switch 417 and a second limit switch 416 respectively disposed on the frame and the feed slide plate 414, and a programmable controller 2 electrically connected to the feed drive assembly, the cutting drive assembly, the first limit switch 417, and the second limit switch 416. More specifically, the cutting shaft motor 401 and the feed shaft motor 402 are stepper motors, and are respectively provided with a cutting drive board 420 and a sample feed drive board 421. The programmable controller 2 is electrically connected to the cutting shaft motor 401 and the feed shaft motor 402 through the cutting drive board 420 and the sample feed drive board 421 respectively.

[0051] In some specific embodiments, the device further includes a device housing 3, and the cutting device 4 is disposed inside the device housing 3.

[0052] Embodiment 2:

[0053] As Figures 1-5 shown, a plastic defect pitting sampling device. The external structure of the device: The device has an external power supply 1 connected to the power socket on the device housing 3. The cutting device 4 and the material receiving box 5 are installed inside the device housing 3, and the programmable controller 2 is installed on the top surface of the device housing 3. Each part is installed and connected to the device housing 3 to make the external appearance of the device regular and integrated. The device housing 3 is also designed with a magnetic glass door, which functions to block cutting splashes and facilitate the observation of cutting. The material receiving box 5 collects the cut substances.

[0054] Sample feeding mechanism: The feed shaft guide rail group 418 is installed and fixed on the frame bottom plate 406. The frame side plate 405 is installed and fixed to the frame bottom plate 406. The feed shaft motor mounting plate 404 is installed and fixed to the frame bottom plate 406 and the frame side plate 405. The feed shaft motor 402 is installed and fixed to the feed shaft motor mounting plate 404. The feed slide plate 414 is installed and connected to the guide rail group 418. The feed slide plate 414 can slide along the guide rail. The feed slide plate 414 is installed and fixed to the nut of the feed screw pair 422. The screw of the feed screw pair 422 is installed and connected to the motor shaft of the feed motor 402. The sample 413 is installed and fixed on the feed slide plate 414 through the sample clamp 412.

[0055] Specifically, as Figure 5 shown, the front end of the sample clamp 412 is L-shaped, fixed to the feed slide plate 414 by a clamp bolt 423, and the sample 413 is clamped between the sample clamp 412 and the feed slide plate 414 through the L-shaped front end.

[0056] Function of this part of the design: The feed shaft motor 402 drives the feed screw pair 422 to convert the rotational motion of the feed shaft motor 402 into linear motion, causing the feed slide 414 and the sample 413 mounted on the feed slide 414 to move linearly back and forth along the feed guide rail set 418. By controlling the rotation angle of the feed shaft motor 402, the cutting thickness of the sample 413 is controlled, and its minimum moving distance is 0.005 mm.

[0057] Sample cutting mechanism. The cutting guide rail set 419 is fixedly installed on the frame bottom plate 406. The cutting slide 408 is installed and connected to the cutting guide rail set 419 through the connecting bracket 407. The cutting shaft motor mounting plate 403 is fixedly installed on the frame side plate 405. The cutting shaft motor 401 is fixedly installed on the cutting shaft motor mounting plate 403. The cutting shaft cam 415 is mounted on the cutting shaft motor 401. The cutting shaft cam 415 is installed and matched with the cutting slide 408. The cutting tool 411 is fixedly installed on the cutting slide 408 through the cutting tool pressing plate 410.

[0058] Function of this part of the design: The cutting shaft motor 401 drives the cutting shaft cam 415, causing the cutting slide 408 that cooperates with the cutting shaft cam 415 to reciprocate up and down along the cutting guide rail set 419, so that the cutting tool 411 mounted on the cutting slide 408 cuts the sample mounted on the feed slide 414.

[0059] In some specific embodiments, a cutting tool adjustment seat 409 is also fixedly installed on the cutting slide 408, and the cutting tool adjustment seat 409 can adjust the protruding length of the cutting tool.

[0060] In some specific embodiments, a control system is further included. More specifically, the cutting shaft motor 401 and the feed shaft motor 402 are stepper motors. The cutting drive board 420 and the sample feed drive board 421 are installed at the tail of the motor. The programmable controller 2 is electrically connected to the cutting shaft motor 401 and the feed shaft motor 402 to achieve position control of the cutting shaft and the feed shaft. In addition, a first limit switch 416 and a second limit switch 417 are installed on the feed shaft to prevent damage to related components caused by overtravel of the feed shaft. The cutting parameters can be set and the cutting equipment can be started and stopped on the display operation screen of the programmable controller 2. There are three control modes: manual, step, and automatic. The manual mode is used for initial adjustment of the position of the cutting tool and the sample. In the step mode, each click of the start button completes one cutting. After clicking the start in the automatic mode, continuous cutting will be performed until the set cutting amount is reached and then stopped.

[0061] The programmable controller controls the rotation angle and rotation speed of the cutting shaft motor 401 and the feed shaft motor 402 according to the set program and relevant parameters. The relevant mechanical connection converts the rotation angle into a linear displacement. During operation, first install the sample 413 on the feed slide. Adjust the starting cutting position in the manual mode, set the cutting thickness and cutting amount, close the glass door, and select the stepping or automatic mode to start cutting. The cutting shaft motor 401 drives the cutting slide 408 and the cutter 411 to move up and down through the cutting shaft cam 415 for cutting. When the cutting slide 408 reaches the upper dead position upward, the feed shaft motor 402 drives the feed slide 414 and the sample 413 to move a set distance of the cutting thickness. Such continuous movement occurs until the set cutting amount is reached or the limit switch is hit, at which point the cutting stops. When stopping, the cutter will stop at the upper dead position, facilitating the removal and subsequent installation of the sample.

[0062] The above description of the embodiments is for the convenience of those of ordinary skill in the art to understand and use the utility model. Obviously, those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative labor. Therefore, the present utility model is not limited to the above embodiments, and all improvements and modifications made by those skilled in the art without departing from the scope of the present utility model according to the disclosure of the present utility model should be within the protection scope of the present utility model.

Claims

1. A plastic defect pit sampling device, characterized in that: The cutting device (4) comprises a frame, and a sample feeding mechanism and a sample cutting mechanism which are arranged on the frame one below and one above; The sample feeding mechanism comprises a feeding rail group (418) arranged horizontally on the frame, a feeding slide plate (414) slidably arranged on the feeding rail group (418), a feeding driving component for driving the feeding rail group (418) to move, and a sample clamping plate (412) arranged on the feeding slide plate (414) for clamping the sample (413); The sample cutting mechanism comprises a cutting guide rail group (419) erected on a frame, a cutting slide plate (408) slidably arranged on the cutting guide rail group (419) and provided with an upper protruding boss and a lower protruding boss in parallel, a cutting shaft cam (415) rotatably arranged and in rolling contact with the lower edge of the upper protruding boss and the lower protruding boss, a cutting drive assembly for driving the cutting shaft cam (415) to rotate, and a cutting knife (411) arranged on the cutting slide plate (408) and used for cutting a sample (413).

2. The plastic defect pit sampling device according to claim 1, characterized in that: The frame comprises a frame bottom plate (406), a frame side plate (405) connected to the frame bottom plate (406), and a feed shaft motor mounting plate (404) and a cutting shaft motor mounting plate (403) arranged on the frame side plate (405); The feed guide rail group (418) is arranged on the frame bottom plate (406), the cutting guide rail group (419) is arranged on the frame side plate (405), the feed drive assembly is arranged on the feed shaft motor mounting plate (404), and the cutting drive assembly is arranged on the cutting shaft motor mounting plate (403).

3. The plastic defect pit sampling device according to claim 2, characterized in that: The frame side panels (405) are arranged on both sides of the frame bottom panel (406) respectively, the cutting guide rail group (419) includes cutting guide rails respectively arranged on the corresponding frame side panels (405), and the two sides of the cutting slide plate (408) are respectively slidably connected to the corresponding cutting guide rails.

4. The plastic defect pit sampling device according to claim 2, characterized in that: A clearance hole is provided on one side of the frame bottom plate (406), a material receiving box (5) is provided in the clearance hole, and the material receiving box (5) is located below the sample (413).

5. The plastic defect pit sampling device according to claim 2, characterized in that: The feed drive assembly comprises a feed shaft motor (402) arranged on a feed shaft motor mounting plate (404), and a feed screw pair (422) arranged between the feed shaft motor (402) and a feed slide plate (414); The screw in the feed screw pair (422) is rotationally connected to the feed shaft motor (402), and the nut is fixedly connected to the feed slide plate (414).

6. The plastic defect pit sampling device according to claim 2, characterized in that: The cutting drive assembly comprises a cutting axis motor (401) arranged on a cutting axis motor mounting plate (403).

7. The plastic defect pit sampling device according to claim 1, characterized in that: The cutting slide plate (408) is provided with an adjustment groove along the sliding direction, and a cutter adjustment seat (409) is provided on the adjustment groove. The cutter adjustment seat (409) comprises an adjustment seat (4091) and a fixing seat (4092) fixedly arranged in the adjustment groove one above and one below. The cutter (411) is pressed into the adjustment groove through a fixing seat (4092), and the lower blade of the cutter (411) extends out from the lower edge of the adjustment groove; An adjusting threaded hole is provided on the adjusting seat (4091), an adjusting bolt (4093) is threadedly connected in the adjusting threaded hole, and the lower end of the adjusting bolt (4093) abuts against the upper end of the cutter (411).

8. The plastic defect pit sampling device according to claim 7, characterized in that: A slot matching the side wall of the cutter (411) is formed on one side of the fixing seat (4092), and the cutter (411) is clamped between the slot and the adjustment slot. The fixing seat (4092) is fixed on the adjustment slot by means of bolts.

9. The plastic defect pit sampling device according to claim 1, characterized in that: The device also includes a first limit switch (417) and a second limit switch (416) respectively arranged on the frame and the feed slide (414), and a programmable controller (2) respectively electrically connected to the feed drive component, the cutting drive component, the first limit switch (417) and the second limit switch (416).

10. The plastic defect pit sampling device according to claim 1, characterized in that: The device also comprises a device housing (3), and the cutting device (4) is arranged inside the device housing (3).

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