Anti-blocking printing head for thermal printer

Abstract

The utility model discloses an anti-blocking printing head for a thermal printer, which comprises a printing head main body and a cleaning assembly which is arranged on the printing head main body and is used for cleaning melt attached to a thermosensitive plate, and the cleaning assembly comprises two first mounting plates which are symmetrically arranged and are arranged on the side, close to the thermosensitive plate, of the printing head body, and a cleaning plate is connected between the two second mounting plates through a pushing assembly. According to the heat-sensitive plate cleaning device, the cleaning assembly is arranged, melt attached to the surface of a heat-sensitive plate is soaked in advance under the action of the soaking assembly, and therefore the melt attached to the surface of the heat-sensitive plate is rubbed and cleaned in the longitudinal movement process and the reciprocating transverse movement process of the cleaning plate, and the cleaning effect of the heat-sensitive plate is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal printers, in particular to a print head for a thermal printer capable of preventing head clogging. Background Art

[0002] Thermal printers install semiconductor heating elements on the print head, which heats the print head and contacts the thermal printing paper, thereby printing the required pattern or text according to usage needs. However, since the chemical reaction of thermal printers needs to be carried out at a certain temperature, after long-term operation, the dust attached to the thermal printing paper and the dust in the air will cause adhesion and blockage. Therefore, the dust generated by the thermal printing paper and the dust in the air need to be cleaned to avoid blockage of the print head.

[0003] For example, the authorization publication number CN218966482U is a print head for a thermal printer that prevents the head from being blocked. The exhaust fan on the anti-blocking head assembly generates negative pressure in the cavity in the horizontal support plate, and the exhaust pipe connected to the cavity and with the end of the arc plate on the left side of the thermal heating roller is used to clean the impurities attached to the outer surface of the thermal heating roller that are in contact with the thermal printing paper, thereby keeping the surface of the thermal heating roller free of impurities. Although the exhaust fan is used to clean the dust, it can ensure the cleaning of impurities suspended in the air. However, due to the close contact between the print head and the thermal paper and the high temperature and the attachment of thermal paper dust during the printing process, some molten materials are easily produced. These substances will adhere to the surface of the print head after cooling to form attachments, making it difficult for the exhaust fan to clean them, thereby reducing the cleaning effect of the print head.

[0004] Therefore, a thermal printer print head that can prevent plugging is urgently needed to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a print head for a thermal printer which can prevent the print head from being blocked, so as to solve the problem in the background art that the melt will adhere to the surface of the print head after cooling.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a print head for a thermal printer capable of preventing head clogging, comprising a print head body and a thermal plate arranged on the print head body, a support plate with a cavity is arranged on one side of the print head body, a blower is arranged on the side of the support plate away from the thermal plate, a plurality of extraction ports are arranged on the other side of the support plate, the print head body is provided with an arc-shaped extraction plate for extracting dust from the surface of the thermal plate, and also comprises a cleaning component arranged on the print head body for cleaning the melt attached to the thermal plate;

[0007] The cleaning component includes two first mounting plates symmetrically arranged on one side of the print head body close to the thermal plate, the print head body is provided with a moving component for driving the two first mounting plates to move, the two first mounting plates are connected to a second mounting plate on one side away from the print head body via a lifting component, a cleaning plate is connected between the two second mounting plates via a pushing component, and the cleaning plate is provided with an infiltration component for infiltrating the molten material.

[0008] A sponge plate is arranged on one side of the cleaning plate close to the heat-sensitive plate.

[0009] The pushing assembly includes two T-shaped rods slidably connected to one of the two second mounting plates, one end of the two T-shaped rods is connected to the cleaning plate, and the other of the two second mounting plates is provided with a push rod motor, and the output end of the push rod motor is connected to the cleaning plate.

[0010] The infiltration component includes a storage cavity opened on the cleaning plate, the storage cavity is filled with alcohol, a plurality of liquid outlet pipes are provided on one side of the cleaning plate, each of the liquid outlet pipes is provided with a control component for controlling the pipeline passage, and a liquid filling port is provided on the side of the cleaning plate away from the heat-sensitive plate.

[0011] The control assembly comprises a control rod rotatably connected to the liquid outlet pipe, a control board is fixedly connected to the side wall of the control rod located inside the liquid outlet pipe, and the second mounting plate is provided with a driving assembly for driving the control board.

[0012] The driving assembly includes a fixing plate fixedly connected to the two second mounting plates near the liquid outlet pipe, a fixing bar fixedly connected between the two fixing plates, the fixing bar is provided with a plurality of racks, one end of each control rod is fixedly connected to a gear, and each gear and rack are meshed with each other.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model pre-wets the molten material attached to the surface of the thermal plate by setting a cleaning component and utilizing the function of the wetting component, so that during the longitudinal movement and reciprocating lateral movement of the cleaning plate, the molten material attached to the surface of the thermal plate is rubbed and cleaned, thereby ensuring the cleaning effect of the thermal plate and reducing the risk of clogging of the print head body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the cleaning component structure of the utility model;

[0017] Figure 3for Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 It is a schematic diagram of the main cross-sectional structure of the utility model.

[0019] In the figure: 101, print head body; 102, thermal plate; 103, support plate; 104, exhaust fan; 105, extraction port; 106, arc extraction plate; 201, first mounting plate; 202, second mounting plate; 203, cleaning plate; 301, T-bar; 302, push rod motor; 401, liquid outlet pipe; 402, liquid filling port; 501, control rod; 502, control board; 601, fixing plate; 602, fixing bar; 603, rack; 604, gear. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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] Example 1

[0022] See also Figure 1-Figure 4 , a print head for a thermal printer capable of preventing head clogging shown in the figure comprises a print head body 101 and a thermal plate 102 arranged on the print head body 101, a support plate 103 with a cavity is arranged on one side of the print head body 101, a suction fan 104 is arranged on the side of the support plate 103 away from the thermal plate 102, a plurality of extraction ports 105 are arranged on the other side of the support plate 103, the print head body 101 is provided with an arc-shaped extraction plate 106 for extracting dust from the surface of the thermal plate 102, and also comprises a cleaning component arranged on the print head body 101 for cleaning the melt attached to the thermal plate 102;

[0023] The cleaning assembly includes two mutually symmetrically arranged first mounting plates 201 arranged on one side of the print head body 101 close to the thermal plate 102, the print head body 101 is provided with a moving assembly for driving the two first mounting plates 201 to move, the two first mounting plates 201 are connected to a second mounting plate 202 on one side away from the print head body 101 through a lifting assembly, a cleaning plate 203 is connected between the two second mounting plates 202 through a pushing assembly, and the cleaning plate 203 is provided with an infiltration assembly for infiltrating the melt;

[0024] It should be noted here that: through the setting of the cleaning component, the molten material attached to the surface of the thermal plate 102 is pre-wetted by the action of the infiltration component, so that during the longitudinal movement and reciprocating lateral movement of the cleaning plate 203, the molten material attached to the surface of the thermal plate 102 is rubbed and cleaned, thereby ensuring the cleaning effect of the thermal plate 102 and reducing the risk of clogging of the print head body 101.

[0025] It is worth noting that the moving assembly and the lifting assembly adopt the common screw drive form. As a mature existing technology, it will not be elaborated in detail here.

[0026] See also Figure 2 , the cleaning plate 203 shown in the figure is provided with a sponge plate on one side close to the heat-sensitive plate 102;

[0027] It should be noted here that the risk of physical damage to the surface of the heat-sensitive plate 102 is reduced by providing the sponge plate.

[0028] See also Figure 2 The pushing assembly shown in the figure includes two T-shaped rods 301 slidably connected to one of the two second mounting plates 202, one end of the two T-shaped rods 301 is connected to the cleaning plate 203, and the other of the two second mounting plates 202 is provided with a push rod motor 302, and the output end of the push rod motor 302 is connected to the cleaning plate 203;

[0029] It should be noted here that: by setting the pushing component, the cleaning plate 203 is pushed to perform reciprocating lateral movement on the surface of the heat-sensitive plate 102 , thereby kneading the surface of the heat-sensitive plate 102 .

[0030] Working principle: When cleaning the surface of the heat-sensitive plate 102, firstly, under the action of the lifting component, the sponge plate at the cleaning end of the cleaning plate 203 is flush with the surface of the heat-sensitive plate 102, and then under the action of the moving component, the cleaning plate 203 is driven to move on the surface of the heat-sensitive plate 102;

[0031] And in the process of the cleaning plate 203 moving on the surface of the thermal plate 102, under the action of the pushing component, the cleaning plate 203 is pushed to perform reciprocating lateral movement on the surface of the thermal plate 102, thereby kneading the surface of the thermal plate 102. At the same time, under the action of the wetting component, the molten material attached to the surface of the thermal plate 102 is pre-wetted, so that in the process of the longitudinal movement and reciprocating lateral movement of the cleaning plate 203, the molten material attached to the surface of the thermal plate 102 is kneaded and cleaned, thereby ensuring the cleaning effect of the thermal plate 102 and reducing the risk of clogging of the print head body 101. The cleaned debris will be sucked into the cavity of the support plate 103 under the suction of the arc-shaped extraction plate 106, thereby collecting the impurities in a centralized manner.

[0032] Example 2

[0033] See also Figure 3 This embodiment further explains Example 1. The infiltration component in the figure includes a storage cavity opened on the cleaning plate 203, the storage cavity is filled with alcohol, a plurality of liquid outlet pipes 401 are provided on one side of the cleaning plate 203, each of the liquid outlet pipes 401 is provided with a control component for controlling the pipeline passage, and a liquid filling port 402 is provided on the side of the cleaning plate 203 away from the heat-sensitive plate 102;

[0034] It should be noted here that: through the setting of the infiltration component, under the action of the control component, the passage of the liquid outlet pipe 401 is reciprocatingly opened and closed, thereby further making the alcohol in the storage chamber reciprocatingly flow to the surface of the thermal plate 102, infiltrating the molten material attached to the surface of the thermal plate 102, thereby reducing the adhesion between the molten material and the thermal plate 102, making it easier to clean the molten material.

[0035] See also Figure 3 The control assembly shown in the figure includes a control rod 501 rotatably connected to the liquid outlet pipe 401, the control rod 501 is located on the side wall inside the liquid outlet pipe 401 and is fixedly connected to a control board 502, and the second mounting plate 202 is provided with a driving assembly for driving the control board 502;

[0036] It should be noted here that: through the setting of the control component, under the action of the driving component, the control plate 502 is driven to reciprocate in the liquid outlet pipe 401, so as to reciprocately open and close the passage of the liquid outlet pipe 401.

[0037] See also Figure 3 The driving assembly shown in the figure includes a fixing plate 601 fixedly connected to the two second mounting plates 202 near the liquid outlet pipe 401, a fixing bar 602 is fixedly connected between the two fixing plates 601, and the fixing bar 602 is provided with a plurality of racks 603, and one end of each control rod 501 is fixedly connected to a gear 604, and each gear 604 is meshed with the rack 603;

[0038] It should be noted here that: through the setting of the driving component, during the reciprocating movement of the cleaning plate 203, the gear 604 and the rack 603 will be driven to reciprocate, thereby driving the control plate 502 to reciprocate under the mutual meshing transmission action of the gear 604 and the rack 603.

[0039] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A print head for a thermal printer capable of preventing head clogging, comprising: A print head body (101) and a thermal plate (102) arranged on the print head body (101), wherein a support plate (103) with a cavity is arranged on one side of the print head body (101), a suction fan (104) is arranged on the side of the support plate (103) away from the thermal plate (102), a plurality of extraction ports (105) are arranged on the other side of the support plate (103), and the print head body (101) is provided with an arc-shaped extraction plate (106) for extracting dust from the surface of the thermal plate (102); It is characterized by further comprising: A cleaning component disposed on the print head body (101) and used for cleaning the molten material attached to the thermal plate (102); The cleaning component comprises two mutually symmetrically arranged first mounting plates (201) arranged on a side of the print head body (101) close to the thermal plate (102); the print head body (101) is provided with a moving component for driving the two first mounting plates (201) to move; the two first mounting plates (201) are connected to a second mounting plate (202) on a side away from the print head body (101) via a lifting component; a cleaning plate (203) is connected between the two second mounting plates (202) via a pushing component; and the cleaning plate (203) is provided with an infiltration component for infiltrating a molten material.

2. A print head for a thermal printer capable of preventing head clogging according to claim 1, characterized in that: A sponge plate is provided on one side of the cleaning plate (203) close to the heat-sensitive plate (102).

3. A print head for a thermal printer capable of preventing head clogging according to claim 1, characterized in that: The pushing assembly comprises two T-shaped rods (301) slidably connected to one of the two second mounting plates (202), one end of the two T-shaped rods (301) being connected to the cleaning plate (203), and the other of the two second mounting plates (202) being provided with a push rod motor (302), and the output end of the push rod motor (302) being connected to the cleaning plate (203).

4. A print head for a thermal printer capable of preventing head clogging according to claim 1, characterized in that: The infiltration component comprises a storage cavity opened on the cleaning plate (203), the storage cavity is filled with alcohol, a plurality of liquid outlet pipes (401) are provided on one side of the cleaning plate (203), each of the liquid outlet pipes (401) is provided with a control component for controlling the pipeline passage, and a liquid filling port (402) is provided on a side of the cleaning plate (203) away from the heat-sensitive plate (102).

5. A print head for a thermal printer capable of preventing head clogging according to claim 4, characterized in that: The control assembly comprises a control rod (501) rotatably connected to the liquid outlet pipe (401); a control board (502) is fixedly connected to the side wall of the control rod (501) located inside the liquid outlet pipe (401); and the second mounting plate (202) is provided with a driving assembly for driving the control board (502).

6. A print head for a thermal printer capable of preventing head clogging according to claim 5, characterized in that: The driving assembly comprises a fixing plate (601) fixedly connected to one side of the two second mounting plates (202) close to the liquid outlet pipe (401); a fixing bar (602) is fixedly connected between the two fixing plates (601); the fixing bar (602) is provided with a plurality of racks (603); one end of each control rod (501) is fixedly connected to a gear (604); each gear (604) is meshed with the rack (603).

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