Automatic inner pressing frame adjusting device of pocket patching machine and pocket patching machine

Abstract

The utility model provides an automatic inner pressing frame adjusting device of a pocket patching machine and the pocket patching machine. The automatic inner pressing frame adjusting device of the pocket patching machine comprises a base, an inner pressing frame adjusting device and an inner pressing frame adjusting device, a driving mechanism; the limiting plate is provided with a guide groove, the guide groove comprises a front guide groove extending in the first direction and a side guide groove inclined to the first direction, and the side guide groove is divided into two working sections; the pressing plate assembly comprises a front pressing plate, a left pressing plate and a right pressing plate, and the left pressing plate and the right pressing plate are arranged on the two sides of the front pressing plate and get close to each other or get away from each other in the second direction in the moving process; and the telescopic plate is in transmission connection with the driving mechanism, and the telescopic plate is connected with the pressing plate assembly so as to drive the pressing plates to move along the corresponding guide grooves. According to the inner pressing frame device, automatic adjustment of the pressing plate assembly is achieved through mutual cooperation of the limiting plate and the telescopic plate, and therefore rapid adjustment of the inner pressing frame device for cloth of different sizes is achieved.

Description

Technical Field

[0001] The present application relates to the field of sewing machines, and particularly to an automatic adjustment inner pressure frame device for a patch pocket machine and a patch pocket machine. Background Art

[0002] The patch pocket machine is mainly applicable to the sewing of various back pockets of jeans, shirt pockets, and the stitching of other irregular-shaped parts in garment processing. When using the patch pocket machine, an inner pressure frame is required to press and fix the pocket to be stitched.

[0003] In order to adapt to pockets of different sizes, the prior art generally adjusts the relative movement of multiple pressing plates through a driving component to achieve the deformation of the inner pressure frame. However, the current inner pressure frame adjustment method is insufficient to meet the usage requirements. For example, when it is necessary to adapt to a relatively wide pocket shape, even after the inner pressure frame is retracted, it still occupies a large space; for another example, when a large adjustment range is required, the response speed of the inner pressure frame is insufficient to meet the needs of high-speed production. Therefore, there is room for improvement. Summary of the Utility Model

[0004] The present application provides an automatic adjustment inner pressure frame device for a patch pocket machine and a patch pocket machine, which can quickly adjust for fabrics of different sizes.

[0005] The present application provides an automatic adjustment inner pressure frame device for a patch pocket machine, including:

[0006] A base, on which a driving mechanism is provided;

[0007] A limiting plate, fixed to the base, with a guiding groove formed thereon. The guiding groove includes a front guiding groove extending along a first direction, and two groups of side guiding grooves arranged obliquely to the first direction. The side guiding grooves have a bent portion and are divided into two working segments by the bent portion;

[0008] A pressing plate assembly, including a front pressing plate moving along the front guiding groove, and a left pressing plate and a right pressing plate moving along each side guiding groove. The left pressing plate and the right pressing plate are arranged on both sides of the front pressing plate and approach or move away from each other along a second direction during the movement. The second direction is perpendicular to the first direction;

[0009] A telescopic plate, slidably stacked on the limiting plate along the first direction. The telescopic plate is in transmission connection with the driving mechanism and is also connected to the pressing plate assembly to drive each pressing plate to move along the corresponding guiding groove.

[0010] The following also provides several optional ways, which are not additional limitations to the above overall solution, but only further supplements or optimizations. On the premise of no technical or logical contradiction, each optional way can be combined with the above overall solution alone, or multiple optional ways can be combined with each other.

[0011] In one embodiment, the driving mechanism uses a motor as a power source to drive the telescopic plate and keep the telescopic plate at any position along a motion path.

[0012] In one embodiment, the two groups of side guide grooves are respectively a left guide groove group and a right guide groove group, and the guide grooves in the same group are at least two arranged side by side;

[0013] The left guide groove group and the right guide groove group are symmetrically arranged on both sides of the extending direction of the front guide groove.

[0014] In one embodiment, the left guide groove and the right guide groove, which are located opposite to each other, both have opposite ends adjacent to each other, and the front guide groove avoids the opposite ends in the first direction.

[0015] In one embodiment, the rear sides of the left guide groove and the right guide groove that are located opposite to each other are adjacent to each other and face each other, and the front sides of the left guide groove and the right guide groove that are located opposite to each other are distant from each other and face each other;

[0016] The two working sections include:

[0017] A first section, adjacent to the opposite end, wherein an angle between an extension direction of the first section and the first direction is α1;

[0018] a second section, adjacent to the opposite end, wherein an angle between an extension direction of the second section and the first direction is α2;

[0019] And it satisfies that α1 is less than α2.

[0020] In one embodiment, the angle α1 is 15 to 30 degrees.

[0021] In one embodiment, the angle α2 is 45 to 60 degrees.

[0022] In one embodiment, α1 is 1.5 to 3 times of α2.

[0023] In one embodiment, the device has a front side and a rear side opposite to each other in a first direction;

[0024] When the front pressing plate moves toward the front side, the left pressing plate and the right pressing plate move away from each other along the second direction while moving toward the front side.

[0025] In one embodiment, when the front pressing plate moves rearward, the left pressing plate and the right pressing plate move toward each other along the second direction while moving rearward.

[0026] In one embodiment, the telescopic plate is provided with two sets of driving grooves, each of which overlaps and obliquely intersects with the corresponding side guide groove;

[0027] The left pressing plate and the right pressing plate are respectively fixed with first guide pins, and each of the first guide pins passes through the corresponding guiding groove and driving groove.

[0028] In one embodiment, the front pressing plate is fixed with a second guide pin, and the second guide pin passes through the front guiding groove and is fixed to the telescopic plate.

[0029] In one embodiment, the two sets of driving grooves are respectively a left driving groove group and a right driving groove group, and at least two driving grooves in the same group are arranged side by side;

[0030] The left driving groove group and the right driving groove group are symmetrically arranged on both sides of the extending direction of the front guiding groove;

[0031] The left driving groove and the right driving groove with opposite positions gradually move away from the front side to the rear side, and the included angle with the first direction is α3.

[0032] In one embodiment, the left pressing plate and the right pressing plate respectively have a front edge and a side edge, wherein the included angle between the front edge and the first direction is equal to α3.

[0033] In one embodiment, the telescopic plate is slidably stacked above the limiting plate, and the left pressing plate and the right pressing plate are respectively slidably stacked below the limiting plate through corresponding connecting plates;

[0034] Two washers are sleeved on the first guide pin, one washer is located between the telescopic plate and the limiting plate, and the other washer is located between the limiting plate and the corresponding connecting plate.

[0035] The present application also provides a pocket attaching machine, including the automatic adjusting inner pressing frame device of the pocket attaching machine described in the present application.

[0036] The automatic adjustment of the pressing plate assembly is realized through the mutual cooperation of the limiting plate and the telescopic plate in the present application, so as to realize the quick adjustment of the inner pressing frame device for fabrics of different sizes, with convenient operation and strong versatility. Description of the Drawings

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0038] Figure 1 It is a schematic diagram of the automatic adjusting inner pressing frame device of the pocket attaching machine in an embodiment of the present application;

[0039] Figure 2 For Figure 1 the top view schematic diagram of the automatic pressure adjusting inner frame device of the patch pocket machine in

[0040] Figure 3 For Figure 1 the explosion schematic diagram of the automatic pressure adjusting inner frame device of the patch pocket machine in

[0041] Figure 4 For Figure 2 the schematic sectional view at A-A in

[0042] Figure 5 For Figure 2 the schematic sectional view at B-B in

[0043] Figure 6 the schematic diagram of the limiting plate structure in an embodiment of the present application;

[0044] Figure 7 the schematic diagram of the telescopic plate structure in an embodiment of the present application.

[0045] The reference numerals of each component are as follows:

[0046] 100, base; 101, motor; 102, die-changing seat; 103, locking cylinder;

[0047] 200, limiting plate; 201, guiding groove; 202, front guiding groove; 203, side guiding groove; 2031, bending part; 2032, first section; 2033, second section; 2034, left guiding groove group; 2035, right guiding groove group; 204, guiding ring; 205, rear guiding groove;

[0048] 300, telescopic plate; 301, driving groove; 3011, left driving groove group; 3012, right driving groove group; 302, triggering block;

[0049] 400, pressing plate assembly; 401, front pressing plate; 402, left pressing plate; 403, right pressing plate; 404, first guiding pin; 405, second guiding pin; 406, connecting plate; 407, first washer; 408, second washer; 4091, leading edge; 4092, side edge;

[0050] 500, gear-rack mechanism; 501, gear; 502, rack; 503, heightening seat. Detailed implementation manners

[0051] To make the above objects, features, and advantages of the present application more apparent and understandable, the following provides a detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0052] It should be noted that when a component is referred to as "fixed to" or "disposed on" another component, it can be directly on the other component or there may also be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right", and similar expressions used in the specification of the present application are for illustrative purposes only and do not represent the only implementation.

[0053] In addition, the terms "first" and "second" are used only for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0054] In the present application, unless otherwise clearly defined and limited, the first feature may be in direct contact with the second feature "on" or "under" the second feature, or the first feature and the second feature may be in indirect contact through an intermediate medium. Moreover, the first feature may be directly above or obliquely above the second feature "above", "over", and "on top of" the second feature, or it only means that the first feature is higher in horizontal height (or in a certain usage state, or from a certain perspective of a drawing) than the second feature. The first feature may be directly below or obliquely below the second feature "below", "beneath", and "underneath" the second feature, or it only means that the first feature is lower in horizontal height (or in a certain usage state, or from a certain perspective of a drawing) than the second feature.

[0055] Unless otherwise defined, all technical and scientific terms used in the specification of the present application have the same meaning as commonly understood by those skilled in the technical field to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used in the specification of the present application includes any and all combinations of one or more of the related listed items.

[0056] See Figures 1 to 7As shown in the figure, an embodiment of the present application provides an automatic adjustment inner pressure frame device for a patch pocket machine, including:

[0057] A base 100, on which a driving mechanism is provided;

[0058] A limiting plate 200, fixed to the base 100. A guiding groove 201 is formed on the limiting plate 200. The guiding groove 201 includes a front guiding groove 202 extending along a first direction, and two groups of side guiding grooves 203 arranged obliquely to the first direction. The side guiding grooves 203 have a bending part 2031 and are divided into two working sections by the bending part 2031;

[0059] A pressing plate assembly 400, including a front pressing plate 401 moving along the front guiding groove 202, and a left pressing plate 402 and a right pressing plate 403 moving along the respective side guiding grooves 203. The left pressing plate 402 and the right pressing plate 403 are arranged on both sides of the front pressing plate 401, and approach or move away from each other along a second direction during the movement. The second direction is perpendicular to the first direction;

[0060] A telescopic plate 300, slidably stacked on the limiting plate 200 along the first direction. The telescopic plate 300 is in transmission connection with the driving mechanism, and the telescopic plate 300 is also connected to the pressing plate assembly 400 to drive each pressing plate to move along the corresponding guiding groove 201.

[0061] In the present application, the automatic adjustment of the pressing plate assembly 400 is realized through the mutual cooperation of the limiting plate 200 and the telescopic plate 300, so as to realize the rapid adjustment of the inner pressure frame device for fabrics of different sizes. Especially, the two working sections of the side guiding groove can realize the fine drive of the pressing plate position during the movement, so as to adapt to different working conditions. For example, in one embodiment, during the guiding process of one of the working sections, the left pressing plate 402, the right pressing plate 403 and the front pressing plate 401 approach or move away from each other according to a preset proportional relationship to realize the precise control of the movement relationship of each pressing plate, especially suitable for the pressing operation of the fabric; during the guiding process of the other working section, the left pressing plate 402 and the right pressing plate 403 move faster than the front pressing plate 401 to realize the rapid movement of the left pressing plate 402 and the right pressing plate 403, especially suitable for avoiding actions in the case of limited space.

[0062] In one of the embodiments, refer to Figure 6The limiting plate 200 is provided with a guide groove 201, and the guide groove 201 includes a front guide groove 202 extending along a first direction, and two groups of side guide grooves 203 arranged obliquely to the first direction. The two groups of side guide grooves 203 are respectively a left guide groove group 2034 and a right guide groove group 2035, and the same group of guide grooves is at least two arranged side by side. The guide grooves in the same group are arranged in parallel. The left guide groove group 2034 and the right guide groove group 2035 are symmetrically arranged on both sides of the extension direction of the front guide groove 202. The left guide groove and the right guide groove that are in relative position have facing ends that are adjacent to each other, and the front guide groove 202 avoids the facing ends in the first direction. The rear sides of the left guide groove and the right guide groove that are in relative position are facing ends that are adjacent to each other, and the front sides of the two are opposite ends that are far away from each other.

[0063] Furthermore, the two working sections include:

[0064] The first section 2032 is adjacent to the opposite end, and the included angle between the extension direction of the first section 2032 and the first direction is α1;

[0065] The second section 2033 is adjacent to the opposite end, and the included angle between the extension direction of the second section 2033 and the first direction is α2;

[0066] And it satisfies that α1 is less than α2.

[0067] Furthermore, α1 is 1.5 to 3 times greater than α2. In the figure, α1 is 15 to 30 degrees, and α2 is 45 to 60 degrees.

[0068] Different angle guide grooves can adjust the movement distance of the pressing plate in different directions. For example, in one embodiment, the angle α1 of the first section 2032 is set to 20 degrees to 25 degrees, and the corresponding pressing plate moves the same distance in the second direction as in the first direction during the movement, and the angle α2 of the second section 2033 is set to 50 degrees to 60 degrees, and the corresponding pressing plate moves a greater distance in the second direction than in the first direction during the movement.

[0069] The limiting plate 200 may further be provided with a rear guiding groove 205 which extends along the first direction and is located at one end of the limiting plate 200 away from the front guiding groove 202. The rear guiding groove 205 provides guidance for the relative movement between the limiting plate 200 and the telescopic plate 300. For example, in the figure, a part of the bottom of the heightening seat 503 connected to the rack 502 enters the rear guiding groove 205 and realizes movement in the first direction under the constraint of the rear guiding groove 205. In the figure, the limiting plate 200 is connected to the die change seat 102, the die change seat 102 is inserted into the base 100, and the base 100 is provided with a locking mechanism for holding the die change seat in the holding and combining state, such as the locking cylinder 103 shown in the attached drawings. The limiting plate 200 and the telescopic plate 300 and the pressing plate assembly 400 connected to the limiting plate 200 can be quickly and stably installed on the base 100 or removed from the base 100 through the die change seat 102.

[0070] In one embodiment, referring to Figure 7 , two sets of driving grooves 301 are formed on the telescopic plate 300, and each driving groove 301 overlaps and intersects obliquely with the corresponding side guiding groove 203. The two sets of driving grooves 301 are respectively a left driving groove group 3011 and a right driving groove group 3012, and the driving grooves in the same group are at least two arranged side by side. The driving grooves in the same group are arranged in parallel. The left driving groove group 3011 and the right driving groove group 3012 are symmetrically arranged on both sides of the extending direction of the front guiding groove 202. The left driving groove and the right driving groove with opposite positions gradually move away from the front side to the rear side, and the included angle with the first direction is α3.

[0071] In the specific setting of the pressing plate assembly 400, referring to Figure 3 , Figure 5 , the pressing plate assembly 400 includes a front pressing plate 401 moving along the front guiding groove 202, and a left pressing plate 402 and a right pressing plate 403 moving along the respective side guiding grooves 203. The left pressing plate 402 and the right pressing plate 403 are arranged on both sides of the front pressing plate 401; first guiding pins 404 are respectively fixed on the left pressing plate 402 and the right pressing plate 403, and each first guiding pin 404 passes through the corresponding guiding groove and driving groove. When there are multiple corresponding guiding grooves and driving grooves, there are also multiple corresponding first guiding pins 404, and at least two first guiding pins 404 correspond to one pressing plate to ensure the movement direction of the left pressing plate 402 and / or the right pressing plate 403. Different first guiding pins 404 are located in different guiding grooves and driving grooves. Similarly, a second guiding pin 405 is fixed on the front pressing plate 401, and the second guiding pin 405 passes through the front guiding groove 202 and is fixed to the telescopic plate 300. Multiple second guiding pins 405 are provided to ensure the movement direction of the front pressing plate 401. Among them, multiple second guiding pins 405 are located in the same guiding groove and driving groove. The left pressing plate 402 and the right pressing plate 403 respectively have a front edge 4091 and a side edge 4092, and the included angle between the front edge 4091 and the first direction is equal to α3.

[0072] In one embodiment, referring to Figure 5 , the telescopic plate 300 is slidably stacked above the limiting plate 200, and the left pressing plate 402 and the right pressing plate 403 are respectively slidably stacked below the limiting plate 200 through the corresponding connecting plates 406. The front pressing plate 401 is also provided with a connecting plate 406 in the figure.

[0073] Two washers are sleeved on the first guide pin 404. One washer is located between the telescopic plate 300 and the limiting plate 200, and the other washer is located between the limiting plate 200 and the corresponding connecting plate 406. The washer located between the telescopic plate 300 and the limiting plate 200 is the first washer 407, and the washer located between the limiting plate 200 and the corresponding connecting plate 406 is the second washer 408. Multiple first washers 407 form a first gap between the telescopic plate 300 and the limiting plate 200, and multiple second washers 408 form a second gap between the limiting plate 200 and the corresponding connecting plate 406. The first gap and the second gap can reduce the contact area, thereby reducing the movement resistance between the telescopic plate 300 and the limiting plate 200, and between the limiting plate 200 and the corresponding connecting plate 406. Further, both the first washer 407 and the second washer 408 can be made of self-lubricating materials, such as oil-containing nylon. Under the working conditions of high working intensity, the first washer 407 and the second washer 408 can also be made of metal materials with smooth contact surfaces. Similarly, a friction-reducing structure can also be provided between the guide pin, the driving groove, and the guiding groove, such as the guide ring 204 shown in the attached drawing. In the figure, the guide ring 204 is arranged in the guiding groove, the guide ring 204 is sleeved on the guide pin and abuts against the side wall of the guiding groove. The guide ring 204 can also be arranged in the rear guiding groove 205.

[0074] In one embodiment, there are a front side and a rear side opposite to each other in the first direction; when the front pressing plate 401 moves forward, the left pressing plate 402 and the right pressing plate 403 move forward and move away from each other in the second direction at the same time. When the front pressing plate 401 moves backward, the left pressing plate 402 and the right pressing plate 403 move backward and move closer to each other in the second direction at the same time.

[0075] It can be seen from the attached drawing that in the setting of the power source in this embodiment, the driving mechanism adopts the motor 101. Compared with the setting in the prior art, the motor 101 can drive the telescopic plate 300 to hold the telescopic plate 300 at any position along the movement path.

[0076] In order to control the movement of the telescopic plate 300, a trigger block 302 is further provided on the telescopic plate 300, and a sensor (not shown in the figure) triggered by the trigger block 302 is fixed on the base 100. The motor 101 responds to the signal of the sensor to achieve electric drive control independent of mechanical limit.

[0077] Further, the driving of the inner pressure frame device is realized by the motor 101 and the gear 501 and the rack 502.

[0078] The rack and pinion mechanism 500 includes:

[0079] A pinion 501, drivingly connected to the main shaft of the motor 101;

[0080] A rack 502, fixed to the telescopic plate 300 and meshing with the pinion 501.

[0081] It can be understood that the rack 502 extends in the first direction to achieve stable meshing during the driving process. The first direction in this embodiment can be the extending direction of the rack or the extending direction of the front guiding groove or the rear guiding groove in the following text. In the embodiment shown in the drawings, the above two directions are parallel. A heightening seat 503 is fixed to the rear side of the telescopic plate 300. The rack 502 is fixed to the heightening seat 503 with the tooth surface facing upward, and the pinion 501 is located above the rack 502. The rear end of the rack 502 is open. When the locking cylinder releases the die change seat, the pinion 501 disengages from behind the rear end of the rack 502, and the limit plate 200 can be quickly removed from the base. The telescopic plate 300, the heightening seat 503, and the rack 502 can be arranged as a split structure as shown in the figure and installed through fasteners. The heightening seat 503 can adjust the assembly relationship between the components, eliminate manufacturing errors, and facilitate debugging and installation. For example, the heightening seat 503 can flexibly set the position of the motor 101, thereby providing an installation space for other components, such as the cylinder.

[0082] Based on the above, an embodiment of the present application further provides a pocket pasting machine, including the automatic adjustment inner pressure frame device of the pocket pasting machine in the above technical solution. The structures of other parts of the pocket pasting machine can be implemented in combination with the prior art.

[0083] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification. When the technical features in different embodiments are embodied in the same drawing, the drawing can be regarded as also disclosing the combination examples of the respective embodiments involved.

[0084] The above-described embodiments only represent several implementation manners of the present application. Their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. An automatic adjustment inner pressure frame device for a bag pasting machine, characterized in that: include: A base, wherein a driving mechanism is arranged on the base; A limit plate is fixed to the base, and a guide groove is formed on the limit plate, wherein the guide groove includes a front guide groove extending along a first direction, and two sets of side guide grooves arranged obliquely to the first direction, wherein the side guide groove has a bending portion and is divided into two working sections by the bending portion; A pressure plate assembly, comprising a front pressure plate moving along the front guide groove, and a left pressure plate and a right pressure plate moving along the side guide grooves, wherein the left pressure plate and the right pressure plate are arranged on both sides of the front pressure plate and approach or move away from each other along a second direction during movement, wherein the second direction is perpendicular to the first direction; The telescopic plate is slidably overlapped on the limit plate along the first direction, the telescopic plate is transmission-connected with the driving mechanism, and the telescopic plate is also connected with the pressing plate assembly to drive each pressing plate to move along the corresponding guide groove.

2. The automatic adjustment inner pressure frame device of the bag pasting machine according to claim 1, characterized in that: The driving mechanism uses a motor as a power source to drive the telescopic plate and keep the telescopic plate at any position along a moving path.

3. The automatic adjustment inner pressure frame device of the bag pasting machine according to claim 1, characterized in that: The two groups of side guide grooves are respectively a left guide groove group and a right guide groove group, and the guide grooves in the same group are at least two arranged side by side; The left guide groove group and the right guide groove group are symmetrically arranged on both sides of the extending direction of the front guide groove.

4. The automatic adjustment inner pressure frame device of the bag sticking machine according to claim 3, characterized in that: The left guide groove and the right guide groove, which are located opposite to each other, both have facing ends adjacent to each other, and the front guide groove avoids the facing ends in the first direction.

5. The automatic adjustment inner pressure frame device of the bag pasting machine according to claim 3, characterized in that: The rear sides of the left guide groove and the right guide groove which are opposite to each other are adjacent to each other and facing each other, and the front sides of the left guide groove and the right guide groove which are opposite to each other are away from each other and facing each other; The two working sections include: A first section, adjacent to the opposite end, wherein an angle between an extension direction of the first section and the first direction is α1; a second section, adjacent to the opposite end, wherein an angle between an extension direction of the second section and the first direction is α2; And satisfy α1 is less than α2; The α1 is 15 to 30 degrees; The α2 is 45 to 60 degrees; α1 is 1.5 to 3 times that of α2.

6. The automatic adjustment inner pressure frame device of the bag sticking machine according to claim 1, characterized in that: having opposite front and rear sides in a first direction; When the front pressing plate moves forward, the left pressing plate and the right pressing plate move away from each other in the second direction while moving forward; When the front pressing plate moves toward the rear, the left pressing plate and the right pressing plate move toward the rear and approach each other along the second direction.

7. The automatic adjustment inner pressure frame device of the bag pasting machine according to claim 1, characterized in that: The telescopic plate is provided with two sets of driving grooves, each of which overlaps and obliquely intersects with the corresponding side guide groove; The left pressure plate and the right pressure plate are respectively fixed with first guide pins, and each of the first guide pins passes through the corresponding guide slot and driving slot; A second guide pin is fixed to the front pressing plate, and the second guide pin passes through the front guide slot and is fixed to the telescopic plate.

8. The automatic adjustment inner pressure frame device of the bag pasting machine according to claim 7, characterized in that: The two groups of driving slots are respectively a left driving slot group and a right driving slot group, and the driving slots in the same group are at least two arranged side by side; The left driving slot group and the right driving slot group are symmetrically arranged on both sides of the extending direction of the front guide slot; The left driving groove and the right driving groove, which are located opposite to each other, gradually move away from the front side to the rear side, and an angle α3 is formed between the left driving groove and the right driving groove and the first direction; The left pressing plate and the right pressing plate respectively have a front edge and a side edge, wherein an angle between the front edge and the first direction is equal to α3.

9. The automatic adjustment inner pressure frame device of the bag sticking machine according to claim 7, characterized in that: The telescopic plate is slidably stacked on the upper side of the limiting plate, and the left pressing plate and the right pressing plate are slidably stacked on the lower side of the limiting plate through corresponding connecting plates respectively; Two washers are sleeved on the first guide pin, one of which is located between the telescopic plate and the limiting plate, and the other is located between the limiting plate and the corresponding connecting plate.

10. A pocket sticking machine, characterized in that: An automatically adjustable inner pressure frame device of a bag sticking machine according to any one of claims 1 to 9.

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