Machining and positioning jig for printer pressing plate

Abstract

The utility model relates to the technical field of part machining, in particular to a machining positioning jig for a printer pressing plate, which comprises a bottom plate, a plurality of groups of uniformly distributed fixing rods are fixedly mounted at the top end of the bottom plate, a top plate is fixedly mounted at the top ends of the fixing rods, and four uniformly distributed guide grooves are formed in the top end of the top plate. A guide block is slidably mounted in each guide groove, and a limiting angle block is fixedly mounted at the top end of each guide block. The printer pressing plate limiting device has the beneficial effects that a stepping motor is matched with a driving wheel, a driven wheel, a synchronous belt and a rotating shaft, a rotating plate can drive a connecting rod to move, a guide block can move along a guide groove, a limiting angle block can limit a printer pressing plate, the automation degree is high, printer pressing plates of different sizes can be limited and fixed, and the machining efficiency is improved; the rubber plate is matched with the spring and the movable rod to make up a gap generated when the printer pressing plate is limited, and the limiting effect of the printer pressing plate is improved conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of parts processing, in particular to a processing positioning fixture for a printer pressing plate. Background Art

[0002] The printer platen is an important component in the printer. Its main function is to ensure that the paper passes through the printing area smoothly during the printing process, and to fix and protect the print head when replacing the ink cartridge or performing printer maintenance. The platen is composed of a metal frame and plastic. The plastic layer is located under the metal frame. The plastic layer must be flat, otherwise it will affect the flatness of the splint and cause the paper outlet to bend and deform. After the platen is produced, it is necessary to flat mill the plastic layer before it leaves the factory to make the surface of the plastic layer flat. For this purpose, a positioning fixture for the platen is needed to limit the platen to avoid the platen from offsetting in subsequent processing and affecting the processing accuracy.

[0003] In the prior art, since the positioning fixture generally installs the limit block by fixing bolts, the staff needs to constantly disassemble and install the limit block when limiting the pressure plates of different sizes, so as to make relevant adjustments, resulting in a large workload for the staff, affecting the processing efficiency of the pressure plate, and the position of the pressure plate limit may appear irregular, resulting in the pressure plate limit is not stable enough, affecting the normal processing of the subsequent pressure plate. Utility Model Content

[0004] The purpose of the utility model is to provide a processing and positioning jig for a printer platen, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a processing and positioning jig for a printer platen, comprising:

[0006] A bottom plate, a plurality of groups of evenly distributed fixing rods are fixedly installed on the top of the bottom plate, a top plate is fixedly installed on the top of the fixing rods, four evenly distributed guide grooves are opened on the top of the top plate, a guide block is slidably installed in each of the guide grooves, a limited angle block is fixedly installed on the top of the guide block, a rotating shaft is rotatably installed on the middle of one side of the top plate and the bottom plate close to each other, a rotating plate is fixedly installed on the middle and lower part of the outer periphery of the rotating shaft, four evenly distributed fixing ears are fixedly installed on the outer periphery of the rotating plate, connecting rods are movably installed on the surface of the fixing ears, and the ends of the connecting rods away from the rotating shaft are movably installed on the lower part of the guide block on the same side through connecting shafts;

[0007] A plurality of evenly distributed slots are provided on the surface of each of the limit angle blocks, and a movable rod is slidably installed in each of the slots, a rubber plate is fixedly installed on one end of the movable rod close to the rotating shaft, a baffle is fixedly installed on one end of the movable rod away from the rubber plate, and a spring is sleeved on one side of the outer periphery of the movable rod close to the baffle;

[0008] A driving mechanism is arranged on the top of the bottom plate, and is used for driving the rotating shaft to rotate.

[0009] Preferably, mounting holes are provided at the four corners of the top end of the bottom plate.

[0010] Preferably, a mounting groove is provided in the middle of one side of the guide block close to the side wall of the guide groove, and a plurality of evenly distributed balls are embedded and installed in the mounting groove.

[0011] Preferably, the limiting corner blocks are all L-shaped.

[0012] Preferably, one end of the spring is fixedly mounted on a side of the baffle plate on the same side close to the movable rod, and the other end of the spring is fixedly mounted on a surface of the limiting angle block on the same side.

[0013] Preferably, the driving mechanism includes a mounting frame, which is fixedly mounted on the middle part of one side of the top end of the base plate, a stepper motor is fixedly mounted in the middle part of the mounting frame, a driving wheel is fixedly mounted on the driving end of the stepper motor, the driving wheel drives the driven wheel to rotate through a synchronous belt, and the driven wheel is fixedly mounted on the lower part of the outer periphery of the rotating shaft.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] A limited angle block is arranged in the processing positioning fixture of the printer platen proposed in the present invention. The stepper motor in the driving mechanism cooperates with the active wheel, the driven wheel, the synchronous belt and the rotating shaft to realize that the rotating plate drives the connecting rod to move, and then the guide block moves along the guide groove, so that the limited angle block can limit the printer platen. Since the position of the guide block can be adjusted accordingly, the degree of automation is high, and it can adapt to printer platens of different sizes for limited fixation, thereby improving the processing efficiency. In addition, the rubber plate cooperates with the spring and the movable rod to make up for the gap generated by the printer platen when limiting, so as to improve the limiting effect of the printer platen. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the local structure of the rotating plate of the utility model;

[0018] Figure 3 It is a schematic diagram of the local structure of the limiting corner block of the utility model.

[0019] In the figure: 1, bottom plate; 2, mounting hole; 3, driving mechanism; 301, driving wheel; 302, stepping motor; 303, mounting frame; 304, synchronous belt; 305, driven wheel; 4, limiting angle block; 5, guide groove; 6, guide block; 7, top plate; 8, fixing rod; 9, connecting shaft; 10, connecting rod; 11, fixing ear; 12, rotating shaft; 13, rotating plate; 14, ball bearing; 15, mounting groove; 16, rubber plate; 17, slot hole; 18, movable rod; 19, spring; 20, baffle. DETAILED DESCRIPTION

[0020] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figures 1 to 3 The utility model provides a technical solution: a processing and positioning jig for a printer platen, comprising: a bottom plate 1, a plurality of groups of evenly distributed fixing rods 8 are fixedly installed on the top of the bottom plate 1, a top plate 7 is fixedly installed on the top of the fixing rod 8, four evenly distributed guide grooves 5 are opened on the top of the top plate 7, a guide block 6 is slidably installed in each guide groove 5, a limited angle block 4 is fixedly installed on the top of the guide block 6, a rotating shaft 12 is rotatably installed in the middle of one side of the top plate 7 and the bottom plate 1, a rotating plate 13 is fixedly installed in the middle and lower part of the outer periphery of the rotating shaft 12, four evenly distributed fixed ears 11 are fixedly installed on the outer periphery of the rotating plate 13, and the surfaces of the fixed ears 11 are movably installed There is a connecting rod 10, and one end of the connecting rod 10 away from the rotating shaft 12 is movably installed on the lower part of the guide block 6 on the same side through the connecting shaft 9. The printer platen to be processed is placed on the surface of the top plate 7. At this time, the driving mechanism 3 can control the rotating plate 13 to cooperate with the connecting rod 10 to drive the guide block 6 to move in the guide groove 5, and then the limit angle block 4 will move toward the four corners of the printer platen. When the limit angle block 4 is in contact with the four corners of the printer platen, the printer platen can be limited and fixed, which is convenient for the staff to subsequently process the printer platen. Since the position of the guide block 6 can be adjusted, it can adapt to printer platens of different sizes for limit and fixation, thereby increasing its applicability.

[0022] A plurality of evenly distributed slots 17 are provided on the surface of each limiting corner block 4, and a movable rod 18 is slidably installed in the slot 17, a rubber plate 16 is fixedly installed on the end of the movable rod 18 close to the rotating shaft 12, and a baffle 20 is fixedly installed on the end of the movable rod 18 away from the rubber plate 16, and a spring 19 is sleeved on the outer periphery of the movable rod 18 close to the baffle 20. When the limiting corner block 4 and the four corners of the printer pressure plate are in contact with each other, since the four corners of the printer pressure plate may not be vertically arranged, the spring 19 in the limiting corner block 4 can push the movable block to move in the slot 17, and then the rubber plate 16 can be attached to the surface of the four corners of the printer pressure plate, which can make up for the gap generated by the printer pressure plate when limiting, so as to improve the limiting effect of the printer pressure plate.

[0023] The four corners of the top of the bottom plate 1 are provided with mounting holes 2. By setting the mounting holes 2 and cooperating with fixing bolts, the bottom plate 1 can be installed and fixed, which can increase the stability of the positioning fixture. The middle part of the side wall of the guide block 6 close to the guide groove 5 is provided with a mounting groove 15. A plurality of evenly distributed balls 14 are embedded and installed in the mounting groove 15. By setting the balls 14, the contact between the original side wall of the guide block 6 and the guide groove 5 can be transformed into the rolling of the balls 14, which can reduce the friction of the guide block 6 during movement and improve its smooth movement. The limit angle block 4 are all L-shaped. By setting the limiting corner block 4 to be L-shaped, it is convenient to clamp the limiting corner block 4 at the four corners of the printer pressure plate, which is convenient for the limiting corner block 4 to limit the printer pressure plate. One end of the spring 19 is fixedly mounted on the same side baffle 20 close to the movable rod 18, and the other end of the spring 19 is fixedly mounted on the surface of the limiting corner block 4 on the same side. By setting the spring 19, due to the characteristics of the spring 19 itself, at this time, according to the depression or protrusion of the four corners of the printer pressure plate, the spring 19 can adaptively adjust the rubber plate 16, thereby increasing the limiting effect of the limiting corner block 4.

[0024] The driving mechanism 3 is arranged on the top of the bottom plate 1. The driving mechanism 3 is used to drive the rotating shaft 12 to rotate. The driving mechanism 3 includes a mounting frame 303. The mounting frame 303 is fixedly mounted on the middle part of one side of the top of the bottom plate 1. A stepper motor 302 is fixedly mounted in the middle part of the mounting frame 303. A driving wheel 301 is fixedly mounted on the driving end of the stepper motor 302. The driving wheel 301 drives the driven wheel 305 to rotate through a synchronous belt 304. The driven wheel 305 is fixedly mounted on the lower part of the outer periphery of the rotating shaft 12. By controlling the stepper motor 302, at this time, the stepper motor 302 is rotated. The motor 302 can drive the driving wheel 301 to rotate. Since the driving wheel 301 is connected to the driven wheel 305 through the synchronous belt 304, the driven wheel 305 can drive the rotating shaft 12 to rotate, so that the rotating plate 13 can rotate synchronously and at a uniform speed. In addition, the staff can control the rotation direction of the rotating plate 13 by controlling the forward or reverse rotation of the stepper motor 302, so that the guide blocks 6 can be approached or separated from each other, which is convenient for the staff to operate it. The degree of automation is high, which reduces the work efficiency of the staff.

[0025] The printer platen is placed on the top plate 7, and by controlling the stepper motor 302, the driving wheel 301 cooperates with the driven wheel 305, the synchronous belt 304 and the rotating shaft 12, so that the rotating plate 13 can drive the connecting rod 10 to move, and then the guide block 6 will move along the guide groove 5, so that the limiting angle block 4 can limit the printer platen. At the same time, the rubber plate 16 cooperates with the spring 19 and the movable rod 18 to adaptively make up the gap between the limiting angle block 4 and the printer platen, thereby improving the limiting effect of the limiting angle block 4 on the printer platen. In conjunction with external auxiliary equipment, such as flat milling equipment, the printer platen can be subsequently processed.

[0026] Although the above describes the illustrative specific implementation methods of the present application so that technicians in this technical field can understand the present application, the present application is not limited to the scope of the specific implementation methods. For ordinary technicians in this technical field, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations using the concept of the present application are protected.

Claims

1. A processing and positioning jig for a printer platen, characterized in that: include: A bottom plate (1), wherein a plurality of groups of evenly distributed fixed rods (8) are fixedly installed on the top of the bottom plate (1), a top plate (7) is fixedly installed on the top of the fixed rods (8), four evenly distributed guide grooves (5) are opened on the top of the top plate (7), a guide block (6) is slidably installed in each of the guide grooves (5), a limited angle block (4) is fixedly installed on the top of the guide block (6), a rotating shaft (12) is rotatably installed in the middle of one side of the top plate (7) and the bottom plate (1), a rotating plate (13) is fixedly installed in the middle and lower part of the outer periphery of the rotating shaft (12), four evenly distributed fixed ears (11) are fixedly installed on the outer periphery of the rotating plate (13), a connecting rod (10) is movably installed on the surface of the fixed ears (11), and the ends of the connecting rods (10) away from the rotating shaft (12) are movably installed on the lower part of the guide block (6) on the same side through connecting shafts (9); A plurality of evenly distributed slots (17) are provided on the surface of each of the limiting corner blocks (4), a movable rod (18) is slidably installed in each of the slots (17), a rubber plate (16) is fixedly installed on one end of the movable rod (18) close to the rotating shaft (12), a baffle (20) is fixedly installed on one end of the movable rod (18) away from the rubber plate (16), and a spring (19) is sleeved on one side of the outer periphery of the movable rod (18) close to the baffle (20); A driving mechanism (3), wherein the driving mechanism (3) is arranged on the top of the base plate (1), and the driving mechanism (3) is used to drive the rotating shaft (12) to rotate.

2. The processing and positioning jig for a printer platen according to claim 1, characterized in that: The top four corners of the bottom plate (1) are all provided with mounting holes (2).

3. The processing and positioning jig for a printer platen according to claim 1, characterized in that: The guide block (6) is provided with a mounting groove (15) in the middle of one side of the side wall close to the guide groove (5), and a plurality of evenly distributed balls (14) are embedded and mounted in the mounting groove (15).

4. The processing and positioning jig for a printer platen according to claim 1, characterized in that: The limiting corner blocks (4) are all L-shaped.

5. The processing and positioning jig for a printer platen according to claim 1, characterized in that: One end of the spring (19) is fixedly mounted on the side of the baffle (20) on the same side close to the movable rod (18), and the other end of the spring (19) is fixedly mounted on the surface of the limiting angle block (4) on the same side.

6. The processing and positioning jig for a printer platen according to claim 1, characterized in that: The driving mechanism (3) comprises a mounting frame (303), the mounting frame (303) being fixedly mounted on the middle part of one side of the top end of the base plate (1), a stepping motor (302) being fixedly mounted in the middle part of the mounting frame (303), a driving wheel (301) being fixedly mounted on the driving end of the stepping motor (302), the driving wheel (301) driving a driven wheel (305) to rotate via a synchronous belt (304), and the driven wheel (305) being fixedly mounted on the lower part of the outer periphery of the rotating shaft (12).

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