CN217276053U

CN217276053U - Thermal printing head inspection device

Info

Publication number: CN217276053U
Application number: CN202221000323.7U
Authority: CN
Inventors: 谷保艳; 杨永光; 孟禹; 朝仓太郎
Original assignee: Shandong Hualing Electronics Co Ltd
Current assignee: Shandong Hualing Electronics Co Ltd
Priority date: 2022-04-27
Filing date: 2022-04-27
Publication date: 2022-08-23
Anticipated expiration: 2032-04-27

Abstract

The utility model relates to a thermal printing technical field specifically discloses a thermal printing printer head inspection device. The device is used for checking the linearity of the heating body of the core component of the thermal printing head and comprises a base module, an alignment module and an image checking module; the aligning module is provided with an accommodating groove with an upward opening, the accommodating groove is used for accommodating the thermal printing head, the aligning module is movably connected to the base module, and the aligning module can move and rotate in a horizontal plane; the image inspection module comprises a display component and two shooting components, wherein the two shooting components are respectively used for shooting two ends of the heating body, and the display component is used for displaying pictures shot by the two shooting components. The device can adjust the positions of two ends of the heating body, and the inspection operation of the thermal printing head is completed in a mode of moving and rotating the alignment module. The device has a simple structure, is convenient to adjust and use, greatly improves the efficiency of the inspection operation of the thermal printing head, and ensures the accuracy of the inspection operation.

Description

Thermal printing head inspection device

Technical Field

The utility model relates to a thermal printing technical field especially relates to a thermal printing head inspection device.

Background

In order to ensure the assembly quality of the thermal head, it is necessary to perform an inspection operation on the position of the heating element on the ceramic substrate before assembly, thereby determining the processing position of the thermal head in the subsequent step. Meanwhile, there is a need to inspect the heating element, and if the heating element is not qualified, the ceramic substrate needs to be adjusted and maintained.

However, since the heating element is small and difficult to see by naked eyes, the alignment and inspection operations of the thermal print head cannot be directly completed without the aid of equipment such as a microscope. When the microscope is used for alignment and inspection, the position of the thermal printing head is inconvenient to adjust, and the positioning effect of the thermal printing head after alignment cannot be ensured, so that the efficiency of inspection operation is low, and the accuracy of the inspection operation cannot be ensured.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a thermal printing head inspection device to promote the efficiency of thermal printing head inspection operation, guarantee the degree of accuracy of inspection operation.

To achieve the purpose, the utility model adopts the following technical proposal:

a thermal printing head checking device is used for checking the linearity of a heating element on a thermal printing head, the outer surface of the thermal printing head is provided with the heating element, and the thermal printing head checking device comprises a base module, an alignment module and an image checking module; the alignment module is provided with an accommodating groove with an upward opening, the accommodating groove is used for accommodating the thermal printing head, the alignment module is movably connected to the base module, and the alignment module can move and rotate in a horizontal plane; the image inspection module comprises a display component and two shooting components, wherein the two shooting components are respectively used for shooting two ends of the heating body, and the display component is used for displaying pictures shot by the two shooting components.

As the preferred technical scheme of the thermal printing head inspection device, the image inspection module further comprises shooting slide rails arranged above the base module, the shooting assemblies are arranged on the shooting slide rails in a sliding mode, the shooting slide rails extend along the working direction, and the working direction is located in the horizontal plane.

As a preferable technical scheme of the thermal printing head inspection device, the shooting assembly comprises a processing unit, an adjusting unit and a lens unit, the lens unit is used for shooting pictures downwards, the adjusting unit is used for adjusting the focal length of the lens unit, and the processing unit is used for processing the pictures shot by the lens unit and sending the pictures to the display assembly.

As a preferred technical scheme of the thermal print head inspection device, the base module comprises a base plate and base support legs, wherein the base support legs are arranged at each corner of the lower plate surface of the base plate and are used for supporting the base plate; the alignment module is connected to the upper plate surface of the base plate, the image inspection module further comprises a bearing plate and a bearing column, the display assembly is installed on the upper plate surface of the bearing plate, and the lower plate surface of the bearing plate is fixedly connected with the upper plate surface of the base plate through the bearing column.

As a preferred technical solution of the thermal print head inspection device, the alignment module includes a first translation assembly and a second translation assembly, the first translation assembly includes a first translation body and two first differential heads, the first translation body extends along a first direction, the two first differential heads respectively abut against two ends of one side surface of the first translation body, and the first differential heads can reciprocate along a second direction; the first direction and the second direction are perpendicular to each other and both the first direction and the second direction are positioned in a horizontal plane; the second translation assembly comprises a second translation main body, the second translation main body is arranged on the first translation main body in a sliding mode along the extending direction of the first translation main body, and the accommodating groove is formed in the second translation main body.

As a preferred technical scheme of the thermal print head inspection device, two guide rails are arranged on the upper plate surface of the base plate, the guide rails extend along a first direction, two guide frames are fixedly connected to the bottom end of the first translation main body, and each guide frame covers one guide rail.

As a preferred technical solution of the thermal print head inspection apparatus, two stoppers are fixedly connected to an upper plate surface of the first translation main body, the stoppers are elastically connected to the first translation main body through first elastic members, and the two first elastic members are respectively connected to two ends of the first translation main body, which are away from the side surface of the first differential head.

As a preferred technical solution of the thermal print head inspection device, two positioning plates are fixedly connected to an upper plate surface of the first translation main body, a first through hole is formed in each positioning plate, and the first differential head is connected to the first through hole in a penetrating manner and abuts against the first translation main body.

As a preferable technical solution of the thermal print head inspection apparatus, the second translation assembly further includes a second differential head, the second differential head is pressed against one end of the second translation body, and the second differential head is capable of reciprocating in a second direction.

As a preferable embodiment of the thermal head inspection device, the first translation body is elastically connected to an end of the second translation body facing away from the second differential head through a second elastic member.

The utility model has the advantages that:

the thermal printing head inspection device realizes the position adjustment operation of the storage groove by moving and rotating the alignment module in the horizontal plane, and is matched with two shooting assemblies to shoot the two ends of the heating body, so that an operator can inspect the thermal printing head according to the picture displayed on the display assembly and judge the quality of the thermal printing head. The operator can also adjust the position of the aligning module according to the pictures displayed on the display assembly at the two ends of the heating body, thereby finishing the inspection operation of the thermal printing head. This thermal printing head inspection device simple structure, be convenient for adjust and convenient to use, the heat-generating body inspection difficulty and the heat-generating body position adjustment problem of having solved thermal printing head have ensured thermal printing head's yields, have promoted the efficiency of thermal printing head inspection operation by a wide margin, guarantee the degree of accuracy of inspection operation.

Drawings

Fig. 1 is a schematic structural diagram of a thermal print head inspection apparatus according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a base module and a first translation assembly according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a first translation assembly and a second translation assembly provided in an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an image inspection module according to an embodiment of the present invention.

In the figure:

100. a base module; 110. a base plate; 120. a base leg; 130. positioning a plate; 140. a stopper; 150. a guide rail;

200. a first translation assembly; 210. a first differential head; 220. a first translational body; 221. third pressing the blind hole; 222. a second through hole; 223. the second pressing blind hole; 224. translating the slide rail; 225. a limiting plate; 230. a first elastic member; 240. a guide frame; 250. a first positioning pin;

310. a second differential head; 320. a second translational body; 321. a translation slide block; 322. a second positioning pin; 323. a receiving groove; 330. a second elastic member; 340. an adjustment member;

400. an image inspection module; 410. a display component; 420. a carrier plate; 430. a load-bearing column; 440. a shooting component; 441. a processing unit; 442. an adjustment unit; 443. a lens unit; 450. shooting a sliding block; 460. shoot the slide rail.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solutions adopted by the present invention and the technical effects achieved by the present invention clearer, the following will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

As shown in fig. 1, 3 and 4, the present embodiment provides a thermal print head inspection apparatus for inspecting the linearity of a heating element on a thermal print head, the heating element being disposed on the outer surface of the thermal print head, the apparatus comprising a base module 100, an alignment module and an image inspection module 400; the alignment module is provided with an accommodating groove 323 with an upward opening, the accommodating groove 323 is used for accommodating the thermal printing head, the alignment module is movably connected to the base module 100, and the alignment module can move and rotate in a horizontal plane; the image checking module 400 includes a display component 410 and two photographing components 440, the two photographing components 440 are respectively used for photographing both ends of the heating body, and the display component 410 is used for displaying pictures photographed by the two photographing components 440.

The thermal printing head inspection device realizes the position adjustment operation of the accommodating groove 323 by moving and rotating the alignment module in the horizontal plane, and is matched with the shooting of the two shooting assemblies 440 on the two ends of the heating body, so that an operator can inspect the thermal printing head according to the picture displayed on the display assembly 410 and judge the quality of the thermal printing head. The operator can also adjust the position of the aligning module according to the screen displayed on the display unit 410 at both ends of the heating element, thereby completing the inspection operation of the thermal head. This thermal printing head inspection device simple structure, be convenient for adjust and convenient to use, the heat-generating body inspection difficulty and the heat-generating body position adjustment problem of having solved thermal printing head have ensured thermal printing head's yields, have promoted the efficiency of thermal printing head inspection operation by a wide margin, guarantee the degree of accuracy of inspection operation.

Specifically, the receiving groove 323 is matched with the thermal print head, and the design ensures that the position of the thermal print head on the alignment module is not changed.

Further, the photographing assembly 440 includes a processing unit 441, an adjusting unit 442, and a lens unit 443, the lens unit 443 is used to photograph a picture downward, the adjusting unit 442 is used to adjust a focal length of the lens unit 443, and the processing unit 441 is used to process and transmit the picture photographed by the lens unit 443 to the display assembly 410. Specifically, the lens unit 443 includes a CCD (charge coupled device) and a telecentric lens, and the CCD is in communication with the telecentric lens.

The lens unit 443 displays a screen on the display unit 410 by inspecting a specific position of the heating element on the ceramic substrate. The adjustment unit 442 is configured to adjust the focal length of the telecentric lens, so as to improve the sharpness of the image displayed on the display module 410, and ensure that an operator can smoothly make quality judgment or position adjustment on the alignment module according to the image.

In this embodiment, the base module 100 includes a base plate 110 and base legs 120, the base legs 120 are disposed at each corner of the lower surface of the base plate 110, and the base legs 120 are used for supporting the base plate 110; the alignment module is connected to the upper plate of the base plate 110, the image inspecting module 400 further includes a carrier plate 420 and a carrier post 430, the display module 410 is installed on the upper plate of the carrier plate 420, and the lower plate of the carrier plate 420 is fixedly connected to the upper plate of the base plate 110 through the carrier post 430. The above design ensures the stable installation of the display component 410 on the base plate 110, the relative position of the alignment module and the image inspection module 400 is adjustable within a predetermined range, the working stability of the thermal printing head inspection device is ensured, and the accuracy of the thermal printing head inspection operation is improved.

Specifically, the pedestal leg 120 of the thermal print head inspection device is placed on a table or other horizontal surface, and the pedestal leg 120 can be retracted in the vertical direction. The arrangement of the base support legs 120 ensures that the thermal print head can be stably arranged in a working environment, and the included angle between the plane where the base plate 110 is located and the table top can be adjusted due to the retractable design.

Further, the alignment module includes a first translation assembly 200 and a second translation assembly, the first translation assembly 200 includes a first translation main body 220 and two first differential heads 210, the first translation main body 220 extends along a first direction, the two first differential heads 210 respectively abut against two ends of one side surface of the first translation main body 220, and an output end of the first differential head 210 can reciprocate along a second direction; the first direction and the second direction are mutually vertical and are both positioned in a horizontal plane; the second translation assembly includes a second translation body 320, the second translation body 320 is slidably disposed on the first translation body 220 along the extending direction of the first translation body 220, and a receiving groove 323 is disposed on the second translation body 320. In the above design, the two first differential heads 210 respectively push two ends of one side surface of the first translation main body 220, so that the first translation main body 220 can be pushed, when the two first differential heads 210 push the same distance at the same time, the position of the thermal printing head in the second direction can be adjusted, and when the distances pushed by the two first differential heads 210 are different, the extending direction of the first translation main body 220 and the first direction form an included angle, so that small-angle rotation of the thermal printing head in a horizontal plane is realized; when the second translation body 320 slides along the first translation body 220, the position of the thermal print head in the first direction can be adjusted; the design structure is simple and reliable, the operation is simple and convenient, the production cost is low, and the smooth completion of the movement of the thermal printing head in the first direction and the second direction and the rotation of the thermal printing head in the horizontal plane can be ensured.

Still further, the upper plate surface of the base plate 110 is provided with two guide rails 150, the guide rails 150 extend along the first direction, the bottom end of the first translational body 220 is fixedly connected with two guide frames 240, and each guide frame 240 covers one guide rail 150. The cooperation of the guide rail 150 and the guide frame 240 plays a role in guiding the first translational body 220 in the second direction, reduces the risk that the first translational body 220 is separated from the predetermined track, prolongs the service life of the alignment module, and ensures the smooth operation of the thermal print head inspection device.

Preferably, two stoppers 140 are fixedly connected to the upper plate surface of the first translational main body 220, the stoppers 140 are elastically connected to the first translational main body 220 through first elastic members 230, and the two first elastic members 230 are respectively connected to two ends of the first translational main body 220 away from the side surface of the first differential head 210. The first elastic member 230 drives the first translational main body 220 to move towards the first differential head 210, and the first translational main body 220 is stopped to abut against the first differential head 210, so that the first translational main body 220 can be always in contact with the first differential head 210, and the first differential head 210 is ensured to accurately and reliably drive the first translational main body 220.

Specifically, the stopper 140 is provided with a first abutting blind hole, one end of the first translational body 220 away from the first differential head 210 is provided with a second abutting blind hole 223, the first elastic member 230 is a spring, and two ends of the first elastic member 230 are respectively and fixedly connected to the bottoms of the first abutting blind hole and the second abutting blind hole 223. The design reduces the risk that the first elastic element 230 is separated from the preset position or even damaged due to accident, prolongs the service life of the first translation assembly 200, and ensures the smooth operation of the thermal print head inspection device.

In this embodiment, two positioning plates 130 are fixedly connected to the upper plate surface of the first translation main body 220, a first through hole is formed in the positioning plate 130, and the first differential head 210 is through-connected to the first through hole and abuts against the first translation main body 220.

Utilize first differential head 210 to cross-under in the design of first cross-under hole, can guarantee the spacing effect to first differential head 210 to inject first differential head 210 and only can follow the promotion in the second direction, the aforesaid sets up the promotion action of having guaranteed first differential head 210 and can accomplish smoothly and accurately, has ensured the ability to first translation main part 220 position adjustment by a wide margin, has promoted operating personnel's use and has experienced, has guaranteed the efficiency of inspection operation.

Preferably, the second translation assembly further includes a second differential head 310, the second differential head 310 is pressed against one end of the second translation body 320, and the output end of the second differential head 310 can reciprocate along the second direction. The pushing action of the second translation body 320 can be realized by pushing one end of the first translation body 220 by the first differential head 210, so that the position of the thermal print head in the first direction can be adjusted. The design structure is simple and reliable, the operation is simple and convenient, and the production cost is low. Specifically, the first shifting body 220 is provided with a second through hole 222, and the second differential head 310 is connected to the second through hole 222 and abuts against the other end of the second shifting body 320. Utilize the first 310 cross-under of second differential in the design of second cross-under hole 222, can guarantee the spacing effect to the first 310 of second differential, thereby it can only promote along the extending direction of first translation main part 220 to have injectd the first 310 of second differential, the aforesaid sets up the promotion action of having guaranteed the first 310 of second differential and can accomplish smoothly and accurately, ensured the ability to the position control of second translation main part 320 by a wide margin, operating personnel's use experience has been promoted, the efficiency of inspection operation has been guaranteed.

In this embodiment, the first translational body 220 is fixedly connected with a translational slide rail 224, and an extending direction of the translational slide rail 224 is the same as an extending direction of the first translational body 220; the bottom of the second translational body 320 is fixedly connected with a translational slider 321, and the translational slider 321 is slidably connected to the translational slide rail 224.

Preferably, the first translational body 220 is further fixedly connected with a stopper plate 225, the stopper plate 225 and the first translational body 220 form a sliding groove, and the second translational body 320 is mounted in the sliding groove and can reciprocate only in the extending direction of the first translational body 220. The limiting plate 225 greatly reduces the risk of position deviation of the second translation main body 320, and ensures smooth operation of the second translation assembly.

When the thermal printer is used, an operator places the ceramic substrate of the thermal printer head on the accommodating groove 323, the left end and the right end of the heating element are respectively positioned under the two telecentric lenses by rotating the first differential head 210 and the second differential head 310, pictures of the two ends of the heating element on the thermal printer head are enlarged by the CCD and the telecentric lenses and then reflected on the display component 410, and the operator observes the specific position of the heating element by the display screen. The movement of the heating body in the second direction and the rotation in the horizontal plane are adjusted by adjusting the two first differentiating heads 210, and the movement of the heating body in the first direction is adjusted by adjusting the second differentiating head 310. After the adjustment is finished, the external carrying clamp carries the thermal printing head to equipment of a subsequent processing procedure so as to ensure the quality of the subsequent processing of the thermal printing head.

In this embodiment, the first translational body 220 is elastically connected to an end of the second translational body 320 away from the second differential head 310 by a second elastic member 330. The second elastic member 330 drives the second translational main body 320 to move towards the second differential head 310 and stop against the second translational main body 320 and the second differential head 310, and the design ensures that the second translational main body 320 can be always contacted with the second differential head 310, thereby ensuring that the second differential head 310 can accurately and reliably drive the second translational main body 320.

Specifically, the first translational body 220 is provided with a third abutting blind hole 221, one end of the second translational body 320 away from the second differential head 310 is provided with a fourth abutting blind hole, the second elastic member 330 is a spring, and two ends of the second elastic member 330 are respectively and fixedly connected to the bottoms of the third abutting blind hole 221 and the fourth abutting blind hole. The design reduces the risk that the second elastic part 330 is separated from the preset position or even damaged due to accidents, prolongs the service life of the second translation assembly, and ensures the smooth operation of the thermal printing head inspection device.

In this embodiment, an adjusting member 340 is threaded in the third abutting blind hole 221, the adjusting member 340 can push the second elastic member 330 to move along the extending direction of the second translational main body 320, and the adjusting member 340 can adjust the magnitude of the pushing force of the second elastic member 330 by pressing the second elastic member 330.

In this embodiment, the first translational assembly 200 further includes a first positioning pin 250, the first positioning pin 250 being mounted on the first translational body 220, the first positioning pin 250 being selectively fixedly connectable with the base plate 110; the second translation assembly further includes a second positioning pin 322, the second positioning pin 322 being mounted on the second translation body 320, the second positioning pin 322 being selectively fixedly connectable with the first translation body 220.

Preferably, the image checking module 400 further includes a shooting slide rail 460 disposed above the base module 100, the two shooting assemblies 440 are slidably disposed on the shooting slide rail 460, and the shooting slide rail 460 extends along a working direction, and the working direction is located in a horizontal plane. Specifically, the shooting slide rail 460 is fixedly connected to the side surface of the bearing plate 420, the shooting assembly 440 is fixedly connected with the shooting slide block 450, and the shooting slide block 450 is slidably connected to the shooting slide rail 460.

In this embodiment, the working direction is the same as the first direction.

The two shooting assemblies 440 are slidably arranged on the shooting sliding rail 460, so that the two shooting assemblies 440 can only complete the movement of approaching or separating from each other in the working direction, and the image inspection module 400 can inspect and align the thermal printing heads with different heating element lengths.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A thermal head inspection apparatus for inspecting linearity of a heat generating body on a thermal head, comprising:

a base module (100);

the alignment module is provided with an accommodating groove (323) with an upward opening, the accommodating groove (323) is used for accommodating the thermal printing head, the alignment module is movably connected to the base module (100), and the alignment module can move and rotate in a horizontal plane;

the image checking module (400) comprises a display component (410) and two shooting components (440), wherein the two shooting components (440) are respectively used for shooting two ends of the heating body, and the display component (410) is used for displaying pictures shot by the two shooting components (440).

2. The thermal print head inspection apparatus according to claim 1, wherein the image inspection module (400) further comprises a camera slide rail (460) disposed above the base module (100), wherein both camera assemblies (440) are slidably disposed on the camera slide rail (460), and the camera slide rail (460) extends along a working direction, and the working direction is in a horizontal plane.

3. The thermal print head inspection apparatus according to claim 2, wherein the photographing assembly (440) includes a processing unit (441), an adjusting unit (442), and a lens unit (443), the lens unit (443) is used to photograph a picture downward, the adjusting unit (442) is used to adjust the focal length of the lens unit (443), and the processing unit (441) is used to process and transmit the picture photographed by the lens unit (443) to the display assembly (410).

4. The thermal print head inspection apparatus according to claim 1, wherein the base module (100) comprises a base plate (110) and base legs (120), the base legs (120) being provided at each corner of a lower plate surface of the base plate (110), the base legs (120) being used for supporting the base plate (110); the alignment module is connected to the upper plate surface of the base plate (110), the image inspection module (400) further comprises a bearing plate (420) and a bearing column (430), the display assembly (410) is installed on the upper plate surface of the bearing plate (420), and the lower plate surface of the bearing plate (420) is fixedly connected with the upper plate surface of the base plate (110) through the bearing column (430).

5. The thermal print head inspection apparatus according to claim 4, wherein the alignment module comprises a first translation assembly (200) and a second translation assembly, the first translation assembly (200) comprises a first translation body (220) and two first differential heads (210), the first translation body (220) extends along a first direction, the two first differential heads (210) respectively press against two ends of one side surface of the first translation body (220), and the first differential heads (210) can reciprocate along a second direction; the first direction and the second direction are perpendicular to each other and both lie in a horizontal plane;

the second translation assembly comprises a second translation body (320), the second translation body (320) is arranged on the first translation body (220) in a sliding mode along the extending direction of the first translation body (220), and the accommodating groove (323) is arranged on the second translation body (320).

6. The thermal head inspection apparatus according to claim 5, wherein the base plate (110) has two guide rails (150) on an upper plate surface thereof, the guide rails (150) extend in a first direction, two guide frames (240) are fixed to a bottom end of the first translation body (220), and each of the guide frames (240) is covered on one of the guide rails (150).

7. The thermal print head inspection apparatus according to claim 5, wherein two stoppers (140) are fixed to an upper plate surface of the first translation main body (220), the stoppers (140) are elastically connected to the first translation main body (220) by first elastic members (230), and the two first elastic members (230) are respectively connected to two ends of a side surface of the first translation main body (220) away from the first differential head (210).

8. The thermal print head inspection apparatus according to claim 5, wherein two positioning plates (130) are fixed to the upper plate surface of the first translation main body (220), a first through hole is formed in the positioning plate (130), and the first differential head (210) is inserted into the first through hole and abuts against the first translation main body (220).

9. The thermal print head inspection apparatus according to claim 5, wherein the second translation assembly further comprises a second differentiating head (310), the second differentiating head (310) is pressed against one end of the second translation body (320), and the second differentiating head (310) is capable of reciprocating in a second direction.

10. The thermal print head inspection device according to claim 9, wherein the first translation body (220) is elastically connected to an end of the second translation body (320) facing away from the second differential head (310) by a second elastic member (330).