Spiral glue pumping device for shell gluing and working method of spiral glue pumping device

Abstract

The invention belongs to the technical field of general spraying, and particularly relates to a spiral glue pumping device for shell gluing and a working method thereof. The spiral glue pumping device for shell gluing comprises a glue pumping device body arranged on the side wall of a fixed support in a lifting mode; the glue pumping device comprises an outer sleeve, an inner sleeve and an inner sleeve, the adjusting assembly is arranged in the outer sleeve in a lifting mode and used for conveying glue to flow downwards; and the control module is electrically connected with the adjusting assembly and is configured to control the adjusting assembly to move up and down according to different viscosities of the glue so as to adjust the moving stroke of the glue in the outer sleeve. Through cooperation of the adjusting assembly and the control module, ascending and descending of the adjusting assembly are adjusted according to different glue viscosities, so that the flowing stroke of glue in the outer sleeve is prolonged or slowed down, and smooth flowing of the glue is guaranteed.

Description

Technical Field

[0001] The invention belongs to the general field of spraying technology, and specifically relates to a general process for coating a surface with a fluid, and in particular to a spiral pump glue device for coating a shell with glue and a working method thereof. Background Art

[0002] During the semiconductor packaging process, the outer shell needs to be bonded to the copper plate or DBC (Direct Bonding Copper) with glue, and then silicone gel is injected and cured.

[0003] For the delivery of glue, a glue pump device with a spiral valve is generally used for glue pumping. The spiral delivery is used to avoid bubbles in the glue. However, in the actual process of delivering glue, the glue delivery at the glue outlet is not smooth, which affects the glue coating effect of the glue pump device on the workpiece.

[0004] Therefore, how to solve the problem of poor glue delivery in a glue pump device is a technical problem that urgently needs to be solved in this field.

[0005] It should be noted that the above information disclosed in this background technology section is only used to understand the background technology of the present application concept, and therefore, the above description is not considered to constitute information of the prior art. Summary of the invention

[0006] The embodiments of the present disclosure at least provide a spiral glue pump device for shell gluing and a working method thereof.

[0007] In a first aspect, an embodiment of the present disclosure provides a spiral glue pump device for coating a shell with glue, comprising: In an optional embodiment, the glue pumping device is lifted and lowered on the side wall of the fixed bracket; The glue pump device comprises: an outer sleeve, the interior of which is hollow; An adjusting assembly, which is lifted and lowered in the outer sleeve and is used to convey the glue to flow downward; A control module is electrically connected to the adjustment component and is configured to According to the different viscosities of the glue, the adjusting component is controlled to move up and down to adjust the movement stroke of the glue in the outer sleeve.

[0008] In an optional embodiment, the glue pump device further includes: a driving cylinder, which is arranged at the upper end of the outer sleeve; A rotating motor is disposed in the outer sleeve and is located at the end of the piston rod of the driving cylinder; A sealing disk, which is arranged at the lower end of the rotating motor and is slidably sealed with the outer sleeve; A screw rod, which is arranged at the end of the rotating shaft of the rotating motor; A glue coating member is rotatably sleeved on the lower end of the spiral rod and is slidingly sealed with the outer sleeve; The control module is electrically connected to the driving cylinder and is also configured to start the driving cylinder to drive the spiral rod and the glue-coated member to move downward when the viscosity of the glue is relatively high; When the viscosity of the glue is low, the driving cylinder is started to drive the spiral rod and the glue-coated part to move upward.

[0009] In an optional embodiment, the glue coating member includes: a guide cone, which is rotatably sleeved on the lower end of the spiral rod; The rubber dispensing head is raised and lowered on the inner wall of the outer sleeve; A connecting rod, wherein a plurality of connecting rods are arranged radially along the glue dispensing head, and two ends of the connecting rods are respectively arranged on the guide cone and the inner wall of the glue dispensing head.

[0010] In an optional embodiment, μ is the current viscosity of the glue, in cP (centipoise); T 胶 is the current glue temperature, in °C; T 参 is the reference temperature in °C; μ 参 For glue T 参 The viscosity of the Among them, the calculation formula of the current glue viscosity is as follows: .

[0011] In an optional embodiment, Q is the glue flow rate, in m³ / s; L is the actual conveying length of the screw rod, in m ； P is the screw pitch, in m; A is the proportionality coefficient; C It is the product of the glue density ρ (kg / m³) and a temperature correction coefficient kt (set to 1); D is the major diameter of the current screw rod, in m; The actual conveying distance of the screw rod is calculated as follows: .

[0012] In an optional embodiment, a glue inlet pipe is provided on the outer wall of the outer sleeve, and the glue outlet of the glue inlet pipe is provided below the sealing disk.

[0013] In an optional embodiment, the inner wall of the glue dispensing head is inclined, and the inclination angle of the inner wall of the glue dispensing head is consistent with the inclination angle of the outer wall of the guide cone.

[0014] In an optional embodiment, a glue coating component is slidably provided on the side wall of the fixed bracket, the glue coating component includes a lifting cylinder, and the glue pumping device is arranged at the movable end of the lifting cylinder.

[0015] In an optional embodiment, the outer sleeve is hollow inside and has a rubber inlet pipe disposed on its outer wall; A driving cylinder, which is arranged at the upper end of the outer sleeve; A screw rod, which is rotatably disposed within the outer sleeve; A glue coating member is rotatably sleeved on the lower end of the spiral rod; The control module is electrically connected to the driving cylinder and is configured to start the driving cylinder to drive the spiral rod and the glue-coating member to move downward when the viscosity of the glue is relatively high, so as to increase the travel of the glue in the outer sleeve; When the viscosity of the glue is low, start the drive cylinder to drive the spiral rod and the coating. The glue piece moves upward to reduce the travel of the glue in the outer sleeve.

[0016] In an optional embodiment, the glue coating member includes: a guide cone, which is rotatably sleeved on the lower end of the spiral rod; The rubber dispensing head is raised and lowered on the inner wall of the outer sleeve; A connecting rod, wherein a plurality of connecting rods are arranged radially along the glue dispensing head, and two ends of the connecting rods are respectively arranged on the guide cone and the inner wall of the glue dispensing head.

[0017] In a second aspect, the present disclosure also provides a working method of a glue pump device, the working method comprising: The control module controls the lifting and moving of the adjustment component to adjust the travel of the glue in the outer sleeve according to the synchronous viscosity of the glue; when the viscosity of the glue is high, the driving cylinder drives the spiral rod and the glue coating member to move downward to increase the travel of the glue in the outer sleeve; When the viscosity of the glue is low, the driving cylinder drives the spiral rod and the glue-coating member to move upward to reduce the travel of the glue in the outer sleeve.

[0018] The beneficial effect of the present invention is that the present invention provides a spiral pump glue device for shell gluing and a working method thereof. Through the setting of the adjustment component, the control module controls the lifting and lowering movement of the adjustment component according to the change of the glue viscosity. When the glue viscosity is large, the movement stroke of the glue in the outer sleeve is increased; when the glue viscosity is small, the movement stroke of the glue in the outer sleeve is reduced, thereby ensuring that the effect of smooth glue delivery can be achieved under different glue viscosities.

[0019] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, this article specifically cites preferred embodiments and provides detailed descriptions as follows in conjunction with the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A three-dimensional diagram of a spiral glue pump device for gluing a housing provided by an embodiment of the present disclosure; Figure 2 A three-dimensional diagram of a glue pump device provided in an embodiment of the present disclosure; Figure 3 An internal stereoscopic diagram of a glue pump device provided in an embodiment of the present disclosure; Figure 4 A schematic diagram of a glue coating member moving downwards provided in an embodiment of the present disclosure; Figure 5 A schematic diagram of the upward movement state of the glue coating member provided in an embodiment of the present disclosure.

[0023] In the figure: 1. Glue pumping device; 10. Outer sleeve; 11. Adjustment assembly; 12. Driving cylinder; 13. Rotating motor; 14. Sealing disk; 15. Screw rod; 16. Glue coating part; 17. Guide cone; 18. Glue outlet head; 19. Connecting rod; 2. Fixed bracket; 3. Glue inlet pipe; 4. Glue coating assembly; 41. Lifting cylinder. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In this article, when it is mentioned that the first component is located on the second component, this may mean that the first component may be directly formed on the second component, or the third component may be interposed between the first component and the second component. In addition, in the drawings, in order to effectively describe the technical content, the thickness of the components may be exaggerated or reduced.

[0026] Herein, example embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as "at least one of..." modify the entire list of elements when following a list of elements, rather than modifying individual elements in the list. For example, the expression "at least one of a, b, and c" should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0027] The terms used herein are only used to describe specific exemplary configurations and are not intended to be limited. As used herein, the singular articles "one", "an" and "the" may also be intended to include plural forms, unless it is clearly indicated above that this is not the case. The terms "include", "comprise" and "have" are inclusive, and therefore specify the presence of features, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components and / or combinations thereof. The method steps, processes and operations described herein should not be interpreted as necessarily requiring them to be performed in the specific order discussed or shown, unless specifically identified as an execution order. Additional or alternative steps may be adopted.

[0028] As used herein, the phrases "in one embodiment," "according to one embodiment," "in some embodiments," and the like generally refer to the fact that the particular feature, structure, or characteristic following the phrase may be included in at least one embodiment of the present disclosure. Therefore, a particular feature, structure, or characteristic may be included in more than one embodiment of the present disclosure, so that these phrases do not necessarily refer to the same embodiment. As used herein, the terms "example," "exemplary," and the like are used to "serve as an example, instance, or illustration." Any implementation, aspect, or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. On the contrary, the use of the terms "example," "exemplary," and the like is intended to present concepts in a concrete manner.

[0029] Research has found that the disadvantages of the existing technology are: in the semiconductor packaging process, it is necessary to bond the shell to the copper plate or DBC (Direct Bonding Copper, direct copper-clad ceramic substrate) with glue, and then inject silicone gel to cure.

[0030] In the actual process of conveying glue by the glue pump device, the viscosity of the glue will change due to changes in room temperature or the temperature of the glue itself. Since glues of different viscosities have different moving stroke requirements in the glue pump device, if a fixed conveying stroke is used, the glue conveying of glues with different viscosities will be poor, thereby affecting the gluing effect of the glue pump device on the workpiece.

[0031] Therefore, how to solve the problem of poor glue delivery in a glue pump device is a technical problem that urgently needs to be solved in this field.

[0032] The defects existing in the above solutions are the results obtained by the inventor after practice and careful research. Therefore, the discovery process of the above problems and the solutions proposed by the present invention in this article for the above problems should be the contributions made by the inventor to the present invention during the disclosure process.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0034] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0035] like Figures 1 to 5 As shown, at least one embodiment provides a spiral glue pump device for shell gluing, including: a glue pump device 1, whose lifting and lowering is arranged on the side wall of a fixed bracket 2; the glue pump device 1 includes: an outer sleeve 10, which is hollow inside; a glue inlet pipe 3 is arranged on the outer wall of the outer sleeve 10, and the glue outlet of the glue inlet pipe 3 is arranged below the sealing disk 14, and the glue inlet pipe 3 is suitable for conveying glue into the outer sleeve 10.

[0036] Reference Figure 3 , the adjusting component 11 is arranged in the outer sleeve 10 for conveying glue to flow downward; when the rotating motor 13 drives the spiral rod 15 to rotate, it is suitable for pushing the glue in the outer sleeve 10 to flow in the direction of the glue coating member 16. The control module is electrically connected to the adjusting component 11, and is configured to control the adjusting component 11 to move up and down according to the different viscosities of the glue, so as to adjust the movement stroke of the glue in the outer sleeve 10. Through the setting of the adjusting component 11, the control module controls the adjusting component 11 to move up and down according to the change of the viscosity of the glue, and increases the movement stroke of the glue in the outer sleeve 10 when the viscosity of the glue is large; when the viscosity of the glue is small, the movement stroke of the glue in the outer sleeve 10 is reduced, thereby ensuring that the effect of smooth glue delivery can be achieved under different viscosities of the glue.

[0037] Continue to refer to the attached Figure 3The glue pump device 1 also includes: a driving cylinder 12, which is arranged at the upper end of the outer sleeve 10; the driving cylinder 12 is suitable for driving the sealing disk 14 to move up and down in the outer sleeve 10. The control module controls the driving cylinder 12 to drive the sealing disk 14 to move up and down according to the viscosity of the glue, so as to change the flow stroke of the glue in the outer sleeve 10. The rotating motor 13 is arranged in the outer sleeve 10 and is located at the end of the piston rod of the driving cylinder 12; the sealing disk 14 is arranged at the lower end of the rotating motor 13 and is slidably sealed with the outer sleeve 10; the rotating motor 13 is suitable for driving the spiral rod 15 to rotate, and the rotation of the spiral rod 15 is suitable for driving the glue in the outer sleeve 10 to flow to the glue coating member 16. The screw rod 15 is arranged at the end of the rotating shaft of the rotating motor 13; the glue coating member 16 is rotatably sleeved on the lower end of the screw rod 15 and slidingly sealed with the outer sleeve 10; the control module is electrically connected to the driving cylinder 12, and is also configured to start the driving cylinder 12 to drive the screw rod 15 and the glue coating member 16 to move downward when the viscosity of the glue is large; when the viscosity of the glue is small, start the driving cylinder 12 to drive the screw rod 15 and the glue coating member 16 to move upward.

[0038] Again, refer to the attached Figure 3 The glue coating member 16 includes: a guide cone 17, which is rotatably sleeved on the lower end of the screw rod 15; the guide cone 17 is suitable for guiding the glue to flow downward; a glue head 18, which is lifted and lowered and arranged on the inner wall of the outer sleeve 10; the outer wall of the glue head 18 is slidably sealed with the inner wall of the outer sleeve 10, and a gap suitable for the glue to flow downward is provided between the inner wall of the glue head 18 and the outer wall of the guide cone 17. A connecting rod 19, a plurality of connecting rods 19 are arranged along the radial direction of the glue head 18, and the two ends are respectively arranged on the guide cone 17 and the inner wall of the glue head 18. The connecting rod 19 is suitable for connecting the glue head 18 and the guide cone 17, so as to improve the stability of the glue head 18 when it is lifted and lowered. In order to prevent the glue head 18 from rotating when it is lifted and lowered, a positioning strip is axially arranged on the inner wall of the outer sleeve 10, and a positioning groove matching the positioning strip is provided on the outer wall of the glue head 18. When the screw rod 15 rotates, the positioning strip is suitable for limiting the glue head 18 to prevent the glue head 18 from rotating with the screw rod 15.

[0039] Furthermore, the control module controls the adjusting component 11 according to the following parameters, so that the spiral rod 15 and the glue coating member 16 move upward or downward, where μ is the current viscosity of the glue; T 胶 is the current glue temperature; the glue temperature is obtained by a temperature sensor, preferably, the temperature sensor is arranged at the glue outlet of the glue inlet pipe 3. 参 is the reference temperature; μ 参 For glue in T 参 The viscosity under the condition of ; the calculation formula of the current glue viscosity is as follows: .

[0040] In one embodiment, let μ 参 The viscosity of the glue at T = 25 degrees Celsius is 200; The current glue T glue is 40 degrees Celsius Substituting into the above formula, we can obtain: the current glue viscosity μ is 125.

[0041] Q is the glue flow rate; L is the actual conveying length of the screw rod; P is the screw pitch, in m; A is the proportional coefficient; C is the product of the glue density ρ and a and the temperature correction coefficient kt; D is the current major diameter of the screw rod; The actual conveying distance of the screw rod is calculated as follows: .

[0042] In one embodiment, the glue flow rate Q is 0.001; the glue viscosity μ is 125; The density of glue ρ is close to the density of water and is taken as 1000; the correction coefficient kt is 1; the pitch of the screw rod is 0.01m; the major diameter D of the screw rod is 0.1m; substituting into the above formula, we can get: L=0.0125m, that is, 12.5CM.

[0043] Reference Figure 4 , when delivering high-viscosity glue, at this time, most of the glue-coating member 16 protrudes from the bottom wall of the outer sleeve 10, and the glue flows from the glue inlet pipe 3 into the outer sleeve 10, and flows downward through the glue outlet head 18, and the glue reaches the maximum value during this stroke. The glue flows on the above-mentioned long path, and is pushed forward multiple times by the rotation of the spiral rod 15. The resistance is gradually dispersed, avoiding the high resistance suddenly encountered during the short path. Therefore, the long path design can push the glue more smoothly and reduce the problem of stagnation or excessive resistance. That is, the longer spiral rod 15 can overcome the resistance caused by the increased viscosity, so that the glue can be delivered more smoothly, and can provide a greater driving force to push the glue forward; Reference Figure 5 When conveying low-viscosity glue, at this time, most of the glue-coated part 16 shrinks in the outer sleeve 10, and the glue flows into the outer sleeve 10 from the glue inlet pipe 3, and flows downward through the glue outlet head 18. The glue reaches the minimum value within this stroke. The fluidity of the glue is good, and there is no need to use a long spiral rod 15 for conveying. If a long spiral rod 15 is used for conveying, if the glue conveyed at this time contains fillers such as quartz powder and alumina powder for increasing the hardness of the glue after curing, long-distance conveying will cause greater wear on the surface of the spiral rod. Therefore, for low-viscosity glue, the smoothness of the glue flow is ensured by reducing the stroke of the glue.

[0044] Continue to refer to the attached Figure 3The inner wall of the glue discharge head 18 is inclined, and the inclination angle of the inner wall of the glue discharge head 18 is consistent with the inclination angle of the outer wall of the guide cone 17. The uniform inclination angle of the inner wall of the glue discharge head 18 and the outer wall of the guide cone 17 helps to assist the stability of glue discharge.

[0045] Reference Figure 1 A glue coating assembly 4 is slidably disposed on the side wall of the fixed bracket 2, and the glue coating assembly 4 includes a lifting cylinder 41, and the glue pumping device 1 is disposed at the movable end of the lifting cylinder 41. The glue coating assembly 4 is suitable for driving the outer sleeve 10 to move horizontally, and when the outer sleeve 10 moves above the workpiece to be glued, the lifting cylinder 41 is suitable for driving the outer sleeve 10 to move up and down.

[0046] At least one embodiment provides a spiral glue pump device, including: an outer sleeve 10, which is hollow inside and has a glue inlet pipe 3 on its outer wall; a driving cylinder 12, which is arranged at the upper end of the outer sleeve 10; a spiral rod 15, which is rotatably arranged in the outer sleeve 10; a glue coating member 16, which is rotatably sleeved on the lower end of the spiral rod 15; a control module, which is electrically connected to the driving cylinder 12 and is configured to start the driving cylinder 12 to drive the spiral rod 15 and the glue coating member 16 to move downward when the viscosity of the glue is large, so as to increase the stroke of the glue in the outer sleeve 10; when the viscosity of the glue is small, start the driving cylinder 12 to drive the spiral rod 15 and the glue coating member 16 to move upward, so as to reduce the stroke of the glue in the outer sleeve 10.

[0047] At least one embodiment provides a working method of a glue pump device, the working method comprising: The control module controls the adjustment component 11 to move up and down according to the synchronous viscosity of the glue to adjust the stroke of the glue in the outer sleeve 10; when the viscosity of the glue is relatively high, the driving cylinder 12 drives the screw rod 15 and the glue coating member 16 to move downward to increase the stroke of the glue in the outer sleeve 10; When the viscosity of the glue is relatively low, the driving cylinder 12 drives the spiral rod 15 and the glue coating member 16 to move upward to reduce the travel of the glue in the outer sleeve 10 .

[0048] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, terms such as "first", "second" and other numerical terms do not imply an order or sequence when used in this document unless explicitly indicated above. Therefore, without departing from the teachings of the example embodiments, the first element, component, region, layer or section discussed above may be referred to as a second element, component, region, layer or section.

[0050] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A spiral pump glue device for shell gluing, characterized in that: include: A glue pump device (1) whose lifting position is arranged on the side wall of the fixed bracket (2); The glue pump device (1) comprises: an outer sleeve (10) whose interior is hollow; An adjusting component (11) which is arranged in a lifting manner inside the outer sleeve (10) and is used to convey glue to flow downward; A control module is electrically connected to the regulating component (11) and is configured to According to the different viscosities of the glue, the adjusting component (11) is controlled to move up and down, so as to adjust the movement stroke of the glue in the outer sleeve (10); The glue pump device (1) further comprises: a driving cylinder (12) disposed at the upper end of the outer sleeve (10); A rotating motor (13) is disposed in the outer sleeve (10) and is located at the end of the piston rod of the driving cylinder (12); A sealing disk (14) is disposed at the lower end of the rotating motor (13) and is slidably sealed with the outer sleeve (10); A screw rod (15) disposed at the end of the rotating shaft of the rotating motor (13); A rubber coating member (16) is rotatably sleeved on the lower end of the spiral rod (15) and is slidably sealed with the outer sleeve (10); The control module is electrically connected to the driving cylinder (12), and is also configured to start the driving cylinder (12) to drive the spiral rod (15) and the glue coating member (16) to move downward when the viscosity of the glue is relatively high; and When the viscosity of the glue is low, the driving cylinder (12) is started to drive the spiral rod (15) and the glue coating member (16) to move upward; μ is the current viscosity of the glue, in cp (centipoise); T 胶 is the current glue temperature, in °C; T 参 is the reference temperature in °C; μ 参 For glue in T 参 The viscosity of the Among them, the calculation formula of the current glue viscosity is as follows: 。 2. The spiral glue pump device for shell glue coating according to claim 1, characterized in that: The glue coating member (16) comprises: a guide cone (17) which is rotatably sleeved on the lower end of the spiral rod (15); A rubber dispensing head (18) which is arranged to be lifted and lowered on the inner wall of the outer sleeve (10); Connecting rods (19), wherein a plurality of the connecting rods (19) are arranged radially along the glue discharging head (18), and two ends are respectively arranged on the inner wall of the guide cone (17) and the glue discharging head (18).

3. The spiral glue pump device for shell glue coating according to claim 1, characterized in that: Q is the glue flow rate, in m³ / s; L is the actual conveying length of the screw rod, in meters; P is the screw pitch, in m; A is the proportionality coefficient; C is the product of the glue density ρ (kg / m³) and a temperature correction coefficient kt (set to 1); D is the major diameter of the current screw rod, in m; The actual conveying distance of the screw rod is calculated as follows: 。 4. The spiral glue pump device for shell glue coating according to claim 1, characterized in that: The outer wall of the outer sleeve (10) is provided with a rubber inlet pipe (3), and the rubber outlet of the rubber inlet pipe (3) is arranged below the sealing disk (14).

5. The spiral glue pump device for shell glue coating according to claim 2, characterized in that: The inner wall of the glue discharge head (18) is arranged to be inclined, and the inclination angle of the inner wall of the glue discharge head (18) is consistent with the inclination angle of the outer wall of the guide cone (17).

6. The spiral glue pump device for shell glue coating according to claim 1, characterized in that: A glue coating component (4) is slidably disposed on the side wall of the fixed bracket (2), the glue coating component (4) comprising a lifting cylinder (41), and the glue pumping device (1) is disposed at the movable end of the lifting cylinder (41).

7. A working method of a spiral glue pump device, characterized in that: The spiral pump glue coating device for shell glue coating as claimed in any one of claims 1 to 6 is adopted, and the working method comprises: The control module controls the adjustment component (11) to move up and down according to the synchronous viscosity of the glue to adjust the stroke of the glue in the outer sleeve (10); when the viscosity of the glue is relatively high, the drive cylinder (12) drives the spiral rod (15) and the glue coating member (16) to move downward to increase the stroke of the glue in the outer sleeve (10); When the viscosity of the glue is low, the driving cylinder (12) drives the spiral rod (15) and the glue coating member (16) to move upward, so as to reduce the stroke of the glue in the outer sleeve (10).

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