Replaceable rubber nozzle connecting structure and automatic rubber cutting device

The design of a replaceable nozzle connection structure solves the problems of low efficiency in replacing the cutting head and equipment damage in the cutting equipment, achieves convenient replacement and good sealing, and reduces maintenance costs.

CN223339590UActive Publication Date: 2025-09-16SUZHOU ZHONGYAN BIO-INFORMATION CO LTD +1
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Patent Information

Application Number
CN202422651428.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-31
Publication Date
2025-09-16
Estimated Expiration
2034-10-31

AI Technical Summary

Technical Problem

Existing rubber cutting equipment is inefficient when replacing the rubber cutting head, is difficult to operate, and is prone to damage to the equipment, affecting production efficiency and maintenance costs.

Method used

A replaceable nozzle connection structure is adopted, including a cutting head positioning piece and a connecting joint. The cutting head can be detachably installed through an annular limiting groove and a sealing ring to ensure sealing and limited fixation.

Benefits of technology

The rubber cutting head can be easily replaced, which reduces maintenance frequency and cost and improves the service life and sealing of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of rubber cutting devices, and discloses a replaceable rubber nozzle connecting structure and an automatic rubber cutting device. The connecting structure comprises a rubber cutting head positioning piece, one end of the rubber cutting head positioning piece is used for being fixedly connected with a rubber cutting module, the other end of the rubber cutting head positioning piece is provided with an annular protrusion and a connecting joint, and the connecting joint is arranged in the annular protrusion and is limited to form an annular limiting groove; the rubber cutting head can be arranged on the connecting joint in a sealing and sleeving mode and inserted into the annular limiting groove so that the rubber cutting head can be detachably installed on the rubber cutting head positioning piece. By means of the connecting structure, plugging installation and dismounting of the rubber cutting head can be conveniently achieved, the annular limiting groove which is not prone to damage is formed through limiting, the rubber cutting head can be well limited and fixed after being repeatedly installed, sealing is kept between the rubber cutting head and the connecting joint, and therefore good sealing performance and installation accuracy are achieved. And the maintenance frequency of the automatic rubber cutting device is reduced, the maintenance cost is reduced, and the service life is longer.
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Description

Technical Field

[0001] The utility model relates to the technical field of glue cutting devices, in particular to a replaceable glue nozzle connection structure and an automatic glue cutting device. Background Art

[0002] Over the long term, existing rubber cutting equipment often requires replacement of the cutting head, a core component, due to wear or to adapt to changing processing requirements. However, traditional rubber cutting head replacement relies heavily on manual disassembly and reinstallation, a process that is not only inefficient but also significantly increases operational difficulty and downtime, impacting overall production efficiency and cost control.

[0003] More seriously, some automated rubber cutting equipment has inappropriate design features in the connection structure of the cutting head. These design flaws not only complicate and tedious the process of replacing the cutting head, but also easily cause unnecessary damage to the equipment during the replacement process, such as seal failure, further increasing maintenance costs and shortening the equipment's service life.

[0004] Therefore, there is an urgent need for a replaceable glue nozzle connection structure and an automatic glue cutting device to solve the above technical problems. Utility Model Content

[0005] One purpose of the utility model is to provide a replaceable glue nozzle connection structure, which can facilitate the replacement of the glue cutting head and has good sealing performance, maintainability and service life.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] The replaceable glue nozzle connection structure includes a glue cutting head positioning piece, one end of which is used to fix and connect the glue cutting module, and the other end of the glue cutting head positioning piece is provided with an annular protrusion and a connecting joint, the connecting joint is arranged in the annular protrusion and defines an annular limiting groove, and the glue cutting head can be sealed on the connecting joint and inserted into the annular limiting groove, so that the glue cutting head can be detachably mounted on the glue cutting head positioning piece;

[0008] An air flow channel is further provided in the rubber cutting head positioning member, and the air flow channel can be connected to the rubber cutting module and connected to the rubber cutting head through the connecting joint.

[0009] Preferably, one end of the rubber cutting head positioning piece is provided with a through hole that can pass through a connecting piece, the rubber cutting module is provided with a connecting flange, and the connecting flange is provided with a threaded mounting hole. The connecting piece can be passed through the threaded mounting hole and fixedly connected the rubber cutting head positioning piece and the rubber cutting module.

[0010] Preferably, the annular protrusion is provided with a recessed portion, and the outer peripheral surface of the rubber cutting head is provided with a protruding portion, and the protruding portion can be inserted into the recessed portion along the depth direction of the annular limiting groove to limit the rubber cutting head around the axial direction and install it on the rubber cutting head positioning member.

[0011] Preferably, the annular protrusion is provided with at least two recessed portions, and the outer peripheral surface of the rubber cutting head is provided with at least two protruding portions, and each protruding portion can be plugged into one of the recessed portions in a one-to-one correspondence.

[0012] Preferably, the annular protrusion is provided with at least two recessed portions, the outer peripheral surface of the cutting head is provided with at least one protrusion, each protrusion can be selectively inserted into one of the recessed portions, and the replaceable nozzle connection structure is configured as follows:

[0013] When the protrusion is inserted into one of the recessed portions, a first loading angle is formed between the rubber cutting head and the rubber cutting head positioning member; when the protrusion is inserted into the other recessed portion, a second loading angle is formed between the rubber cutting head and the rubber cutting head positioning member.

[0014] Preferably, along the direction in which the protrusion is inserted into the recess, the width of the recess gradually decreases, and the width of the opening of the recess is greater than the width of the end of the protrusion inserted into the recess.

[0015] Preferably, the replaceable glue nozzle connection structure further includes a sealing ring, which is sleeved and mounted on the connection joint, and the sealing ring can be sealed between the inner wall of the glue cutting head and the outer wall of the connection joint.

[0016] Preferably, the outer wall of the connecting joint is provided with at least two installation grooves, and the sealing ring is provided in each of the installation grooves.

[0017] The beneficial effects of the replaceable glue nozzle connection structure provided by the present invention are as follows: through the above-mentioned replaceable glue nozzle connection structure, not only can the plug-in, installation and disassembly of the glue cutting head be conveniently realized, but also by limiting the formation of an annular limiting groove that is not easily damaged, the glue cutting head can be well limited and fixed after repeated installation and maintain a seal with the connecting joint, thereby achieving good sealing and installation accuracy, and also reducing the maintenance frequency and maintenance cost of the automatic glue cutting device, and having a longer service life.

[0018] Another object of the present invention is to provide an automatic rubber cutting device that can easily replace the rubber cutting head and has good sealing performance, maintainability and service life.

[0019] To achieve this purpose, the present invention adopts the following technical solutions:

[0020] The automatic rubber cutting device includes a rubber cutting head, a rubber cutting module, an upper and lower driving module and the above-mentioned replaceable rubber nozzle connecting structure. The rubber cutting head is detachably and sealedly mounted on the rubber cutting head positioning piece of the replaceable rubber nozzle connecting structure, the rubber cutting head positioning piece is mounted on the rubber cutting module, and the upper and lower driving modules are transmission-connected to the rubber cutting module and can drive the rubber cutting module and the rubber cutting head positioning piece to perform lifting movements.

[0021] Preferably, a cutting head replacement mechanism is further included, which can clamp and release the cutting head, so that the cutting head positioning member can install and / or remove the cutting head through lifting movement.

[0022] The beneficial effects of the automatic glue cutting device provided by the utility model are as follows: by setting a replaceable glue nozzle connection structure, not only can the plug-in, installation and disassembly of the glue cutting head be conveniently realized, but also by limiting the formation of an annular limiting groove that is not easily damaged, the glue cutting head can be well limited and fixed after repeated installation and maintain a seal with the connecting joint, thereby achieving good sealing and installation accuracy, and also reducing the maintenance frequency and maintenance cost of the automatic glue cutting device, having a longer service life, and facilitating the automatic replacement of the glue cutting head. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a three-dimensional diagram of the automatic rubber cutting device provided by the utility model;

[0024] Figure 2 This is a schematic diagram of the installation of the rubber cutting positioning piece and the rubber cutting head provided by the utility model;

[0025] Figure 3 yes Figure 2 A partial enlarged view of point A in the middle;

[0026] Figure 4 It is a schematic diagram of the width of the concave portion and the convex portion in the utility model;

[0027] Figure 5 This is a three-dimensional diagram of the rubber cutting positioning piece provided by the utility model;

[0028] Figure 6 This is a bottom view of the rubber cutting positioning piece provided by the utility model;

[0029] Figure 7 It is a top view of the electrophoresis apparatus in the present utility model.

[0030] In the picture:

[0031] 1. Rubber cutting head; 11. Raised part;

[0032] 2. Rubber cutting head positioning piece; 21. Connecting joint; 22. Annular protrusion; 221. Recess; 23. Annular limiting groove; 24. Sealing ring;

[0033] 3. Rubber cutting module; 31. Connecting flange;

[0034] 4. Up and down drive module;

[0035] 5. Identify the camera;

[0036] 6. Electrophoresis apparatus; 61. Sample spotting gel wells. DETAILED DESCRIPTION

[0037] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0038] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0039] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0040] In the description of this embodiment, terms such as "upper," "lower," "right," and "left" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0041] The following is based on the attached Figure 1 To the attached Figure 7 The utility model introduces a replaceable glue nozzle connection structure and an automatic glue cutting device.

[0042] Specifically, in this embodiment, the replaceable nozzle connection structure mainly includes a cutting nozzle positioning member 2. Figures 1 to 3 As shown, the automatic rubber cutting device includes an identification camera 5, an upper and lower driving module 4, a rubber cutting module 3 and the above-mentioned rubber cutting head positioning member 2, wherein the identification camera 5 is used to identify the horizontal position of the automatic rubber cutting device, and the upper and lower driving module 4 can drive the rubber cutting module 3 and the rubber cutting head positioning member 2 to move up and down. One end of the rubber cutting head positioning member 2 is fixedly connected to the rubber cutting module 3, and the other end of the rubber cutting head positioning member 2 is provided with an annular protrusion 22 and a connecting joint 21. The connecting joint 21 is provided in the annular protrusion 22, and an annular limiting groove 23 is defined and formed between the connecting joint 21 and the annular protrusion 22. The rubber cutting head 1 can be sealed and sleeved on the connecting joint 21 and inserted into the annular limiting groove 23, so that the rubber cutting head 1 can be detachably mounted on the rubber cutting head positioning member 2. The rubber cutting module 3 can generate negative pressure and positive pressure. An air flow channel is also provided in the rubber cutting head positioning member 2. The air flow channel can be connected to the rubber cutting module 3 and connected to the rubber cutting head 1 through the connecting joint 21, thereby realizing the suction and discharge of rubber blocks by inhaling and exhaling, and at the same time ensuring that the size of the cut rubber blocks is consistent, which is convenient for experimental operation and use.

[0043] When installing the rubber cutting head 1, refer to Figure 2 、 Figure 3 As shown, the rubber cutting head 1 is moved toward the connecting joint 21, and the end of the rubber cutting head 1 away from the rubber cutting port is inserted into the above-mentioned annular limiting groove 23. At this time, the rubber cutting head 1 can be sealed and sleeved on the connecting joint 21, and is limited and inserted in the annular limiting groove 23, which can prevent the rubber cutting head 1 from tilting and causing leakage. When disassembly is required, the rubber cutting head 1 can be easily separated by simply pulling it out without causing damage to the annular protrusion 22, the connecting joint 21, etc., so that when the rubber cutting head 1 is inserted again, the annular limiting groove 23 can still play a good role in limiting and fixing and preventing tilting, ensuring the sealing after repeated installation.

[0044] Through the above-mentioned replaceable glue nozzle connection structure, not only can the plug-in, installation and disassembly of the glue cutting head 1 be conveniently realized, but also by limiting the formation of an annular limiting groove 23 that is not easily damaged, the glue cutting head 1 can be well limited and fixed after repeated installation and maintain a seal with the connecting joint 21, thereby achieving good sealing and installation accuracy, and also reducing the maintenance frequency and maintenance cost of the automatic glue cutting device, and having a better service life.

[0045] like Figure 2As shown, in this embodiment, one end of the rubber cutting head positioning member 2 is provided with a through hole for receiving a connector, and the rubber cutting module 3 is provided with a connecting flange 31, which is provided with a threaded mounting hole. The connecting member is selected from screws, etc., which can be inserted into the threaded mounting hole to conveniently secure the rubber cutting head positioning member 2 and the rubber cutting module 3.

[0046] Furthermore, if Figure 2 、 Figure 3 As shown, the replaceable nozzle connection structure also includes a sealing ring 24, which is installed on the connecting joint 21, and the sealing ring 24 can seal between the inner wall of the cutting head 1 and the outer wall of the connecting joint 21, so that when the cutting head 1 is installed on the connecting joint 21, the sealing between the two is guaranteed.

[0047] Preferably, if Figure 3 As shown, the outer wall of the connecting joint 21 is provided with at least two mounting grooves, each of which is provided with a sealing ring 24. The arrangement of multiple sealing rings 24 can further enhance the sealing between the cutting head 1 and the connecting joint 21, thereby ensuring that the cut rubber blocks are of uniform size, facilitating experimental operation and use.

[0048] Of course, in some embodiments, a mounting groove may be provided on the inner wall of the annular protrusion 22, and a sealing ring 24 may be disposed within the mounting groove. This sealing ring 24 can seal between the rubber cutting head 1 and the annular protrusion 22, and can also indirectly ensure a seal between the rubber cutting head 1 and the connecting joint 21. Optionally, in some embodiments, both the inner wall of the annular protrusion 22 and the outer wall of the connecting joint 21 are provided with sealing rings 24, further ensuring a tight seal between the rubber cutting head 1 and the rubber cutting head positioning member 2.

[0049] like Figure 3 、 Figure 4 As shown, in this embodiment, the replaceable nozzle connection structure further includes a recessed portion 221 and a raised portion 11. The annular protrusion 22 is provided with the recessed portion 221, and the raised portion 11 is provided on the outer peripheral surface of the cutting head 1. The raised portion 11 can be inserted into the recessed portion 221 along the depth direction of the annular limiting groove 23 to limit the cutting head 1 around the axis and install it on the cutting head positioning member 2, thereby further facilitating the installation of the cutting head 1, so that the cutting head 1 can maintain the same direction as the sample injection hole 61 on the electrophoresis instrument 6.

[0050] Preferably, along the direction in which the protrusion 11 is inserted into the recess 221, the width of the recess 221 gradually decreases, and the width of the opening of the recess 221 (eg Figure 4 The width of the end of the protrusion 11 inserted into the recessed portion 221 is greater than the width of the end of the protrusion 11 inserted into the recessed portion 221 (as shown in the m dimension). Figure 4As shown in the dimension n in the figure, the inner wall of the recessed portion 221 acts as a guide, facilitating the insertion of the raised portion 11 into the recessed portion 221. For example, in this embodiment, the width of the opening of the recessed portion 221 is 1.75 mm, the depth is 2 mm, and the width of the end of the raised portion 11 inserted into the recessed portion 221 is 1.35 mm.

[0051] like Figure 5 、 Figure 6 As shown, in this embodiment, the annular protrusion 22 is provided with four recessed portions 221, and the four recessed portions 221 are evenly spaced on the annular protrusion 22. The outer peripheral surface of the rubber cutting head 1 is provided with two protrusions 11, and the two protrusions 11 are respectively provided on both sides of the outer peripheral surface. During installation, the two protrusions 11 can be inserted into two of the recessed portions 221, so that the first loading angle is formed between the rubber cutting head 1 and the rubber cutting head positioning member 2, and can also be inserted into the other two recessed portions 221, so that the second loading angle is formed between the rubber cutting head 1 and the rubber cutting head positioning member 2, thereby meeting the use needs of the electrophoresis apparatus 6 installed in different directions.

[0052] refer to Figure 1 、 Figure 7 As shown, in this embodiment, the cutting head 1 is used to cut square rubber blocks, and the electrophoresis apparatus 6 is arranged along the first direction so that the length direction of the sample gel hole 61 in the electrophoresis apparatus 6 is along the first direction. Figure 7 In some embodiments, the electrophoresis apparatus 6 is arranged along the second direction so that the length direction of the sample gel hole 61 is along the first loading angle. Figure 7 In this case, the cutting head 1 and the cutting head positioning member 2 can be installed along the second loading angle. Of course, in some other embodiments, in order to meet more installation methods of the electrophoresis apparatus 6, more recessed portions 221 can be provided to achieve more installation angles such as the third loading angle. This is not specifically limited in the present invention.

[0053] The present invention also provides an automatic rubber cutting device, comprising a rubber cutting head 1 and the above-mentioned replaceable rubber nozzle connection structure. The rubber cutting head 1 is detachably and sealedly mounted on the rubber cutting head positioning member 2 of the replaceable rubber nozzle connection structure, the rubber cutting head positioning member 2 is mounted on the rubber cutting module 3, and the upper and lower drive modules 4 are transmission-connected to the rubber cutting module 3. By setting the replaceable rubber nozzle connection structure, not only can the plug-in installation and disassembly of the rubber cutting head 1 be conveniently realized, but also by limiting the formation of an annular limiting groove 23 that is not easily damaged, the rubber cutting head 1 can be well limited and fixed after repeated installation and maintain a seal with the connecting joint 21, thereby achieving good sealing and installation accuracy, and also reducing the maintenance frequency and maintenance cost of the automatic rubber cutting device, having a better service life, and facilitating the automated replacement of the rubber cutting head 1.

[0054] For example, in this embodiment, the automatic rubber cutting device further includes a rubber cutting head replacement mechanism. The upper and lower driving modules 4 can drive the rubber cutting head positioning member 2 to move up and down, and the rubber cutting head replacement mechanism can clamp and release the rubber cutting head 1.

[0055] When the cutting head replacement mechanism holds the cutting head 1, the cutting head positioning member 2 is moved from top to bottom toward the cutting head 1, so that the cutting head 1 can be sleeved on the connecting joint 21 and inserted into the annular limiting groove 23. At this time, the cutting head 1 can be released to complete the installation of the cutting head 1.

[0056] After the rubber cutting head 1 is used, the rubber cutting head positioning member 2 is aligned with the rubber cutting head replacement mechanism from top to bottom, so that the rubber cutting head replacement mechanism can clamp and fix the rubber cutting head 1. Then, the rubber cutting head positioning member 2 is moved from bottom to top to separate the used rubber cutting head 1 from the rubber cutting head positioning member 2, thereby realizing the removal of the rubber cutting head positioning member 2.

[0057] It should be noted that in some embodiments, the automatic rubber cutting device further includes a horizontal drive module to drive the rubber cutting head positioning member 2 to move horizontally above the rubber cutting head replacement mechanism and the electrophoresis apparatus 6. This horizontal drive module can be a variety of components, such as a module, and is not specifically limited in this invention. It can be used as long as it can achieve the above-mentioned installation and removal of the rubber cutting head 1 and meet the actual needs of rubber cutting.

[0058] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. The replaceable nozzle connection structure is characterized by: The invention comprises a rubber cutting head positioning member (2), one end of the rubber cutting head positioning member (2) is used for fixing and connecting the rubber cutting module (3), the other end of the rubber cutting head positioning member (2) is provided with an annular protrusion (22) and a connecting joint (21), the connecting joint (21) is provided in the annular protrusion (22) and defines an annular limiting groove (23), the rubber cutting head (1) can be sealed and sleeved on the connecting joint (21) and inserted into the annular limiting groove (23), so that the rubber cutting head (1) can be detachably mounted on the rubber cutting head positioning member (2); An air flow channel is also provided in the rubber cutting head positioning member (2), and the air flow channel can be connected to the rubber cutting module (3) and connected to the rubber cutting head (1) via the connecting joint (21).

2. The replaceable nozzle connection structure according to claim 1, characterized in that: One end of the rubber cutting head positioning member (2) is provided with a through hole capable of passing a connecting member, and the rubber cutting module (3) is provided with a connecting flange (31), and the connecting flange (31) is provided with a threaded mounting hole, and the connecting member can be passed through the threaded mounting hole to fix the rubber cutting head positioning member (2) and the rubber cutting module (3) in connection.

3. The replaceable nozzle connection structure according to claim 1, characterized in that: The annular protrusion (22) is provided with a recessed portion (221), and the outer peripheral surface of the rubber cutting head (1) is provided with a protruding portion (11). The protruding portion (11) can be inserted into the recessed portion (221) along the depth direction of the annular limiting groove (23) to limit the rubber cutting head (1) around the axial direction and install it on the rubber cutting head positioning member (2).

4. The replaceable nozzle connection structure according to claim 3, characterized in that: The annular protrusion (22) is provided with at least two recessed portions (221), and the outer peripheral surface of the rubber cutting head (1) is provided with at least two protruding portions (11), and each protruding portion (11) can be plugged into one of the recessed portions (221) in a one-to-one correspondence.

5. The replaceable nozzle connection structure according to claim 3, characterized in that: The annular protrusion (22) is provided with at least two recessed portions (221), the outer peripheral surface of the cutting head (1) is provided with at least one protrusion (11), each protrusion (11) can be selectively inserted into one of the recessed portions (221), and the replaceable nozzle connection structure is configured as follows: When the protrusion (11) is inserted into one of the recessed portions (221), a first loading angle exists between the rubber cutting head (1) and the rubber cutting head positioning member (2); and when the protrusion (11) is inserted into the other of the recessed portions (221), a second loading angle exists between the rubber cutting head (1) and the rubber cutting head positioning member (2).

6. The replaceable nozzle connection structure according to claim 3, characterized in that: Along the direction in which the protrusion (11) is inserted into the recess (221), the width of the recess (221) gradually decreases, and the width of the opening of the recess (221) is greater than the width of the end of the protrusion (11) inserted into the recess (221).

7. The replaceable nozzle connection structure according to claim 1, characterized in that: The replaceable glue nozzle connection structure further comprises a sealing ring (24), which is sleeved and mounted on the connection joint (21), and the sealing ring (24) is capable of sealingly contacting between the inner wall of the glue cutting head (1) and the outer wall of the connection joint (21).

8. The replaceable nozzle connection structure according to claim 7, characterized in that: The outer wall of the connecting joint (21) is provided with at least two installation grooves, and the sealing ring (24) is provided in each of the installation grooves.

9. Automatic rubber cutting device, characterized in that: The invention comprises a rubber cutting head (1), a rubber cutting module (3), an upper and lower driving module (4) and a replaceable rubber nozzle connecting structure as described in any one of claims 1 to 8, wherein the rubber cutting head (1) is detachably and sealedly mounted on a rubber cutting head positioning member (2) of the replaceable rubber nozzle connecting structure, the rubber cutting head positioning member (2) is mounted on the rubber cutting module (3), and the upper and lower driving module (4) is transmission-connected to the rubber cutting module (3) and can drive the rubber cutting module (3) and the rubber cutting head positioning member (2) to perform lifting movements.

10. The automatic rubber cutting device according to claim 9, characterized in that: It also includes a cutting head replacement mechanism, which can clamp and release the cutting head (1) so that the cutting head positioning member (2) can install and / or remove the cutting head (1) through lifting and lowering movements.