A drying equipment for packaging carton processing

Abstract

The present application discloses a drying device for processing packaging cartons, which belongs to the technical field of packaging carton production and processing, and includes a heat pump dryer main body, a dehumidification chamber is provided on the side wall of the inner cavity of the heat pump dryer main body, and an efficiencies reinforcement part is provided in the dehumidification chamber, and the efficiencies reinforcement part includes an active actuator, a spare actuator, a partition net, a forced ejector pin and a cover plate structure, and the partition net is connected to the dehumidification chamber. When the present drying equipment can absorb and dry the water vapor diffused in the inner cavity of the heat pump dryer main body during the drying process of the packaging cartons through the active actuator in the efficiencies reinforcement part in the dehumidification chamber, and the active actuator can also sense its moisture absorption saturation degree in the above process, and can trigger the spare actuator to replace the invalid active actuator when it reaches the moisture absorption saturation state, so as to avoid the interruption of moisture absorption of the efficiencies reinforcement part during the drying process of the packaging cartons.

Description

Technical Field

[0001] The present application relates to the technical field of packaging carton production and processing, and more specifically, to a drying device for packaging carton processing. Background Art

[0002] Cartons are the most widely used packaging products. Depending on the materials used, there are corrugated boxes, single-layer cardboard boxes, etc., with various specifications and models.

[0003] During carton production, a large amount of moisture will be generated when the workshop produces cardboard, and the moisture will make the cardboard damp and affect the efficiency of carton production. Therefore, after the carton is manufactured, it must be dried before it can be transported or put into use, otherwise it is easy to cause problems such as mildew.

[0004] Since the heat pump dryer has limited dehumidification capacity when drying materials, when the heat pump dryer is drying packaging cartons with a high moisture content, the air humidity inside the drying chamber of the dryer will increase significantly, causing the drying chamber to become very humid. When the moisture content in the air in the drying chamber reaches saturation, it is difficult for the moisture in the packaging cartons to evaporate. In addition, once the dryer stops drying and heating, the temperature in the drying chamber drops. After the saturated water vapor in the drying chamber is cooled and condensed, it is easy for the dried packaging cartons to become damp again, resulting in a significant reduction in the drying effect and efficiency of the packaging cartons.

[0005] In view of this, we propose a drying equipment for packaging carton processing. Summary of the invention

[0006] Technical problem to be solved: The purpose of this application is to provide a drying equipment for packaging carton processing, which solves the technical problems raised in the above-mentioned background technology.

[0007] Technical solution: The technical solution of the present application provides a drying device for processing packaging cartons, including a heat pump dryer body, a dehumidification chamber is provided on the side wall of the inner cavity of the heat pump dryer body, and an efficiency enhancement member is provided in the dehumidification chamber, and the efficiency enhancement member includes an active actuator, a spare actuator, a partition net, a forced ejector pin and a cover plate structure, and the partition net is connected to the dehumidification chamber, and the partition net divides the internal space of the dehumidification chamber into a front chamber and a rear chamber;

[0008] The active actuator includes a pipeline structure and a main drying box arranged in the front chamber, the end opening of the main drying box is filled with a water-absorbing and swelling granular medium, an elastic abutment is also arranged in the inner cavity of the main drying box, the end opening of the main drying box is connected to a breathable cloth layer, and an end of the main drying box away from the breathable cloth layer is also provided with a power generating unit connected to the pipeline structure and connected to the elastic abutment, the cover plate structure includes a front baffle connected to the side wall of the inner cavity of the heat pump dryer body and covering the end opening of the dehumidification chamber, the front baffle is provided with a transparent observation window, and a plurality of through holes are evenly opened on the transparent observation window;

[0009] The spare actuator is also located in the front chamber, and when the synergistic reinforcement is in the initial state, the main drying box is aligned with the transparent observation window, and the spare actuator is aligned with the closed portion on the front cover.

[0010] As an optional solution of the technical solution of the present application document, the elastic abutment member includes a central filter screen sliding in the inner cavity of the main drying box;

[0011] A return spring is connected to the middle filter screen, and one end of the return spring away from the middle filter screen is connected to the end of the inner cavity of the main drying box.

[0012] As an optional solution of the technical solution of the present application document, the power generating unit includes a generating cover cylinder detachably connected to the end of the main drying box;

[0013] A hollow guide column is inserted and sealed and slidably provided at one end of the generating cover tube close to the elastic abutment piece, and a water-reactive column is provided in the inner cavity of the hollow guide column;

[0014] Holes are also provided on the side walls of the hollow guide pillars;

[0015] A preparatory slot is provided at one end of the generating cover tube away from the hollow guide column, and a waterproof and breathable membrane layer is connected in the preparatory slot;

[0016] The inner cavity of the generating cover tube is filled with a water medium which cooperates with the water-reactive column.

[0017] As an optional solution of the technical solution of the present application document, one end of the hollow guide column away from the generating cover cylinder is detachably connected to the central filter screen in the elastic abutment member;

[0018] When the return spring of the elastic force abutment member is in an initial relaxed state, the hole on the side wall of the hollow guide column is located outside the generating cover cylinder.

[0019] As an optional solution of the technical solution of the present application document, the pipeline structure includes a guide pipeline, a narrow-mouth section is provided on the guide pipeline, and a negative pressure connecting pipeline is connected to the position of the guide pipeline corresponding to the narrow-mouth section;

[0020] The guide pipeline is also connected to an L-shaped pipeline, and a forced ejector pin is provided in the internal sealing sliding of the output end of the L-shaped pipeline;

[0021] A one-way air valve is arranged on the output end of the guide pipeline.

[0022] As an optional solution of the technical solution of this application document, the input end of the one-way air valve passes through the side wall of the heat pump dryer body and is connected to the rear chamber, and the output end of the one-way air valve is connected to the atmosphere.

[0023] As an optional solution to the technical solution of the present application document, a tube opening is opened on the side wall of the partition net for the generation cover tube to pass through, and the end of the generation cover tube away from the hollow guide column passes through the tube opening and is sealed on the side wall of the rear chamber, and the waterproof and breathable membrane layer located at the end of the generation cover tube is aligned with the input end of the guide pipeline.

[0024] As an optional solution of the technical solution of the present application document, one end of the negative pressure connecting pipeline away from the narrow mouth section passes through the side wall of the heat pump dryer body and is connected with the rear chamber.

[0025] As an optional solution to the technical solution of the present application document, the output end of the L-shaped pipeline penetrates into the inner wall of the side wall of the heat pump dryer body and is connected to the front chamber, and the end of the forced ejector pin located inside the output end of the L-shaped pipeline faces the spare actuator located in the front chamber.

[0026] As an optional solution of the technical solution of the present application document, the spare actuator includes a secondary drying box located in the front chamber, and a breathable cloth layer is connected to the opening at the end of the secondary drying box;

[0027] The inner cavity of the auxiliary drying box is filled with loose water-absorbing and swelling granular media.

[0028] Beneficial effect: One or more technical solutions provided in the technical solution of the present application have at least the following technical effects or advantages: 1. The water vapor diffused in the inner cavity of the heat pump dryer main body during the drying process of the packaging cartons is hygroscopically dried by the active actuator in the synergistic reinforcement member in the dehumidification chamber, and the active actuator can also sense its hygroscopic saturation degree in the above process, and when it reaches the hygroscopic saturation state, it can trigger the spare actuator to replace the invalid active actuator, thereby avoiding the hygroscopic interruption of the synergistic reinforcement member during the drying process of the packaging cartons, so that the drying equipment can continuously maintain the dryness of the drying environment of the packaging cartons during the drying process of the cartons, and can effectively avoid the packaging cartons from getting damp again due to the high humidity in the drying environment after stopping the drying and heating, thereby ensuring the drying effect and drying efficiency for the packaging cartons with a higher moisture content.

[0029] 2. The water vapor evaporated during the drying process of the packaging cartons is absorbed by the inside of the main drying box and by the water-absorbing and swelling granular medium. The water-absorbing and swelling granular medium expands continuously after absorbing moisture and drives the hollow guide column in the power generating unit to continuously extend into the generating hood through the elastic abutment. When the water-absorbing and swelling granular medium inside the main drying box reaches the moisture absorption saturation state, the holes on the side walls of the hollow guide column are pushed into the generating hood. After the water medium contacts the water-reactive column through the holes, a reaction occurs and a large amount of gas is quickly released. After the gas passes through the waterproof and breathable membrane layer into the inside of the pipeline structure, the forced ejector pin is driven to push the spare actuator located in the front chamber to a position aligned with the transparent observation window, so that after the active actuator is moisture-absorbed and saturated, the standby actuator acting as the standby drying mechanism can be quickly started and take over the active actuator to continue working, ensuring that the drying process is uninterrupted, maintaining the dryness of the drying environment of the packaging cartons, and facilitating the rapid evaporation of moisture inside and outside the cartons, thereby shortening the drying time of the packaging cartons and improving the drying efficiency.

[0030] 3. After the gas entering the guide pipeline drives the forced ejector to push the spare actuator to the position aligned with the transparent observation window, when the air pressure inside the guide pipeline further rises and exceeds the preset value of the one-way air valve, the one-way air valve opens, and the continuous airflow is discharged through the guide pipeline. When the airflow passes through the narrow mouth section, the flow rate is accelerated, so that a vacuum state is gradually formed inside the negative pressure connecting pipeline connected to it, so that the air with water vapor in the carton drying environment can be accelerated to flow to the spare actuator, and the moisture in the carton drying environment is absorbed and discharged from the drying chamber more quickly, which is conducive to further improving the dryness of the carton drying environment, making the drying process of the packaging cartons with a high water content of this drying equipment more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the overall structure of this application.

[0032] Figure 2 For this application Figure 1 A partial enlarged schematic diagram of part A.

[0033] Figure 3 It is a cross-sectional schematic diagram of the heat pump dryer body in this application.

[0034] Figure 4 For this application Figure 3 A partial enlarged schematic diagram of part B.

[0035] Figure 5 This is a schematic diagram of the internal structure of the dehumidification chamber of this application.

[0036] Figure 6 For this application Figure 5 A partial enlarged schematic diagram of part C in the middle.

[0037] Figure 7 For this application Figure 6 A partial enlarged schematic diagram of part E in the middle.

[0038] Figure 8 For this application Figure 5 A partial enlarged schematic diagram of part D in the middle.

[0039] Description of the numbers in the figure:

[0040] 10. Heat pump dryer body;

[0041] 201, front cover; 202, transparent observation window; 203, one-way air valve; 204, main drying box; 205, water-swelling particle medium; 206, auxiliary drying box; 207, separation net; 208, forced ejector pin; 209, breathable cloth layer; 210, generating cover cylinder; 211, water medium; 212, waterproof and breathable membrane layer; 213, guide pipeline; 214, center filter; 215, hollow guide column; 216, water-reactive column; 217, narrow section; 218, negative pressure connecting pipeline. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0043] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0044] In the description of this application, it should be noted that, 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 a 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 this application can be understood according to specific circumstances.

[0045] Reference Figures 1 to 5 The embodiment of the present application provides a drying device for processing packaging cartons, including a heat pump dryer body 10, a dehumidification chamber is provided on the inner cavity side wall of the heat pump dryer body 10, and an efficiency enhancement member is provided in the dehumidification chamber, and the efficiency enhancement member includes an active actuator, a spare actuator, a partition net 207, a forced ejector pin 208 and a cover plate structure, and the partition net 207 is connected to the dehumidification chamber, and the partition net 207 divides the inner space of the dehumidification chamber into a front chamber and a rear chamber;

[0046] The active actuator includes a pipeline structure and a main drying box 204 disposed in the front chamber. The end opening of the main drying box 204 is filled with a water-absorbing and swelling granular medium 205, and the water-absorbing and swelling granular medium 205 is made of a water-absorbing resin material.

[0047] An elastic abutment is also provided in the inner cavity of the main drying box 204, and a breathable cloth layer 209 is connected to the end opening of the main drying box 204. A power generating unit connected to the pipeline structure and connected to the elastic abutment is also provided on one end of the main drying box 204 away from the breathable cloth layer 209. The cover plate structure includes a front baffle 201 connected to the inner cavity side wall of the heat pump dryer body 10 and covering the end opening of the dehumidification chamber. A transparent observation window 202 is provided on the front baffle 201, and a plurality of through holes are evenly opened on the transparent observation window 202.

[0048] The standby actuator is also located in the front chamber, and when the synergistic reinforcement member is in the initial state, the main drying box 204 is aligned with the transparent observation window 202 , and the standby actuator is aligned with the closed portion on the front cover 201 .

[0049] When the drying equipment can absorb and dry the water vapor diffused in the inner cavity of the heat pump dryer main body 10 during the drying process of the packaging cartons through the active actuator in the synergistic reinforcement part in the dehumidification chamber, and the active actuator can also sense its moisture absorption saturation degree in the above process, and when it reaches the moisture absorption saturation state, it can trigger the spare actuator to replace the invalid active actuator, thereby avoiding the moisture absorption interruption of the synergistic reinforcement part during the drying process of the packaging cartons, so that the drying equipment can continuously absorb the water vapor evaporated during the drying process of the cartons, maintain the dryness of the drying environment of the packaging cartons, and effectively avoid the packaging cartons from getting damp again due to the high humidity in the drying environment after stopping the drying and heating, thereby ensuring the drying effect and drying efficiency for the packaging cartons with a higher moisture content.

[0050] Reference Figure 3 , Figure 5 and Figure 6The embodiment of the present application provides a drying device for processing packaging cartons, wherein the elastic abutment member includes a central filter screen 214 sliding in the inner cavity of the main drying box 204, and the mesh size of the central filter screen 214 is smaller than the particle outer diameter size of the water-swelling particle medium 205 placed in the main drying box 204 before moisture absorption;

[0051] A return spring is connected to the middle filter screen 214 , and one end of the return spring away from the middle filter screen 214 is connected to the end of the inner cavity of the main drying box 204 .

[0052] Reference Figure 3 , Figure 5 , Figure 6 and Figure 7 , the embodiment of the present application provides a drying device for processing packaging cartons, the power generating unit includes a generating cover cylinder 210 detachably connected to the end of the main drying box 204;

[0053] A hollow guide column 215 is inserted and sealed and slidably provided at one end of the generator cover tube 210 close to the elastic abutment, and the end of the hollow guide column 215 away from the generator cover tube 210 is detachably connected to the central filter screen 214 in the elastic abutment. The detachable connection method referred to in this article includes but is not limited to: bolt connection and snap connection;

[0054] A water-reactive column 216 is disposed in the inner cavity of the hollow guide column 215. The water-reactive column 216 is formed by pressing an effervescent disintegrant.

[0055] The side wall of the hollow guide column 215 is also provided with a hole. When the return spring of the elastic force abutment member is in an initial relaxed state, the hole on the side wall of the hollow guide column 215 is located outside the generating cover tube 210.

[0056] A preparatory groove is provided at one end of the generating cover tube 210 away from the hollow guide pillar 215, and a waterproof and breathable membrane layer 212 is connected in the preparatory groove;

[0057] The inner cavity of the generating cover tube 210 is filled with a water medium 211 that cooperates with the water-reactive column 216 .

[0058] Reference Figure 3 , Figure 5 , Figure 6 and Figure 8 , the embodiment of the present application provides a drying device for processing packaging cartons, the pipeline structure includes a guide pipeline 213, and the guide pipeline 213 is provided with a narrow section 217;

[0059] A negative pressure communication pipe 218 is connected to the position of the guide pipe 213 corresponding to the narrow section 217. One end of the negative pressure communication pipe 218 away from the narrow section 217 passes through the side wall of the heat pump dryer body 10 and is connected to the rear chamber.

[0060] The guide pipeline 213 is also connected to an L-shaped pipeline, and a forced ejector pin 208 is sealed and slidably disposed inside the output end of the L-shaped pipeline. The output end of the L-shaped pipeline penetrates the inner wall of the side wall of the heat pump dryer body 10 and is connected to the front chamber, and the end of the forced ejector pin 208 located inside the output end of the L-shaped pipeline faces the spare actuator located in the front chamber.

[0061] A one-way air valve 203 is provided on the output end of the guide pipeline 213, the input end of the one-way air valve 203 passes through the side wall of the heat pump dryer body 10 and is connected to the rear chamber, and the output end of the one-way air valve 203 is connected to the atmosphere;

[0062] A tube opening is opened on the side wall of the partition net 207 for the generator cover tube 210 to pass through, and the end of the generator cover tube 210 away from the hollow guide column 215 passes through the tube opening and is sealed on the side wall of the rear chamber, and the waterproof and breathable membrane layer 212 located at the end of the generator cover tube 210 is aligned with the input end of the guide pipeline 213.

[0063] The water vapor evaporated during the drying process of the packaging carton enters the main drying box 204 through the through holes on the transparent observation window 202 and the breathable cloth layer 209 connected to the end of the main drying box 204 and is absorbed by the water-absorbing and swelling granular medium 205. The water-absorbing and swelling granular medium 205 expands in volume after absorbing moisture and drives the hollow guide column 215 in the power generating unit through the elastic abutment to continuously extend into the generating cover tube 210. When the water-absorbing and swelling granular medium 205 in the main drying box 204 reaches the moisture absorption saturation state, the holes on the side wall of the hollow guide column 215 are pushed into the generating cover tube 210, and the water medium 211 contacts the water-reactive column 216 through the holes to react and quickly release a large amount of gas, and the gas passes through the waterproof and permeable After the air film layer 212 enters the interior of the pipeline structure, it drives the forced ejector pin 208 to push the standby actuator located in the front chamber to a position aligned with the transparent observation window 202, and the standby actuator then continues to absorb and dry the evaporated water vapor in the carton drying environment, so that after the active actuator is saturated with moisture, the standby actuator acting as the standby drying mechanism can be quickly started and take over the work of the active actuator to ensure that the drying process is uninterrupted, so that the drying equipment can continue to absorb the water vapor evaporated during the carton drying process, maintain the dryness of the drying environment for the packaging carton, and help the moisture inside and outside the carton to evaporate quickly, thereby shortening the drying time and improving the drying efficiency of the packaging carton.

[0064] Reference Figure 3 and Figure 5 , the embodiment of the present application provides a drying device for processing packaging cartons, the standby execution part includes a secondary drying box 206 located in the front chamber, and a breathable cloth layer 209 is connected to the end opening of the secondary drying box 206;

[0065] The inner cavity of the auxiliary drying box 206 is filled with water-swelling granular medium 205 in a loose state. In the initial state, the water-swelling granular medium 205 is placed in the auxiliary drying box 206 in a loose state, so that there is space inside the auxiliary drying box 206 to accommodate the water-swelling granular medium 205 after the volume expands after moisture absorption.

[0066] 207 After a large amount of gas passes through the waterproof and breathable membrane layer 212 and enters the guide pipe 213 in the pipe structure and drives the forced ejector pin 208 to push the spare actuator to a position aligned with the transparent observation window 202, when the internal air pressure of the guide pipe 213 further rises and exceeds the preset value of the one-way air valve 203, the one-way air valve 203 opens, and a continuous airflow is continuously discharged through the guide pipe 213. After the airflow of the fluid in the guide pipe 213 passes through the narrow mouth section 217, the flow rate is accelerated, so that a vacuum state is gradually formed inside the negative pressure connecting pipe 218 connected to it, so that the air with water vapor in the carton drying environment can accelerate to flow to the spare actuator, and the moisture in the carton drying environment is absorbed and discharged from the drying chamber more quickly, which is beneficial to further improve the degree of dryness in the carton drying environment, so that the drying process of the packaging cartons with a high water content of the drying equipment is more efficient.

[0067] After the front cover 201 is removed from the inner cavity side wall of the heat pump dryer body 10, the main drying box 204 and the auxiliary drying box 206 are first taken out from the front chamber, and the failed water-absorbing and swollen granular medium 205 located inside the two is poured out, and then the new water-absorbing and swollen granular medium 205 is refilled into the main drying box 204 and the auxiliary drying box 206, and then the generating cover tube 210 and the hollow guide column 215 in the power generating unit are removed from the main drying box 204 and the central filter 214 respectively, and then the new power generating unit is reinstalled, so as to facilitate people to replace the failed water-absorbing and swollen granular medium 205 and the power generating unit in the synergistic reinforcement.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A drying device for packaging carton processing, characterized in that: The heat pump dryer comprises a main body (10), a dehumidification chamber is provided on the inner cavity side wall of the main body (10), an efficiency enhancement component is provided in the dehumidification chamber, the efficiency enhancement component comprises an active actuator, a standby actuator, a partition net (207), a forced ejector pin (208) and a cover plate structure, the partition net (207) is connected to the dehumidification chamber, and the partition net (207) divides the inner space of the dehumidification chamber into a front chamber and a rear chamber; The active actuator comprises a pipeline structure and a main drying box (204) arranged in the front chamber, the end opening of the main drying box (204) is filled with a water-absorbing and swelling granular medium (205), an elastic abutment member is also arranged in the inner cavity of the main drying box (204), the end opening of the main drying box (204) is connected to a breathable cloth layer (209), and an end of the main drying box (204) away from the breathable cloth layer (209) is also provided with a power generating unit connected to the pipeline structure and connected to the elastic abutment member, the cover plate structure comprises a front baffle (201) connected to the inner cavity side wall of the heat pump dryer body (10) and covering the end opening of the dehumidification chamber, the front baffle (201) is provided with a transparent observation window (202), and the transparent observation window (202) is evenly provided with a plurality of through holes; The standby actuator is also located in the front chamber, and when the synergistic reinforcement member is in the initial state, the main drying box (204) is aligned with the transparent observation window (202), and the standby actuator is aligned with the closed portion on the front baffle (201); The elastic abutment member comprises a central filter screen (214) sliding in the inner cavity of the main drying box (204); A return spring is connected to the middle filter screen (214), and one end of the return spring away from the middle filter screen (214) is connected to the end of the inner cavity of the main drying box (204); The power generating unit comprises a generating cover cylinder (210) detachably connected to the end of the main drying box (204); A hollow guide column (215) is inserted and sealed and slidably provided at one end of the generating cover cylinder (210) close to the elastic abutment piece, and a water-reactive column (216) is provided in the inner cavity of the hollow guide column (215); The side wall of the hollow guide column (215) is also provided with holes; A preparatory groove is provided at one end of the generating cover cylinder (210) away from the hollow guide pillar (215), and a waterproof and breathable membrane layer (212) is connected in the preparatory groove; The inner cavity of the generating cover cylinder (210) is filled with a water medium (211) that cooperates with the water-reactive column (216); The pipeline structure comprises a guide pipeline (213), the guide pipeline (213) being provided with a narrow-mouth section (217), and a negative-pressure connecting pipeline (218) being connected to a position of the guide pipeline (213) corresponding to the narrow-mouth section (217); The guide pipeline (213) is also connected to an L-shaped pipeline, and a forced ejector pin (208) is sealed and slidably disposed inside the output end of the L-shaped pipeline; A one-way air valve (203) is provided at the output end of the guide pipeline (213); The side wall of the separation net (207) is provided with a tube opening through which the generating cover tube (210) can pass, and the end of the generating cover tube (210) away from the hollow guide pillar (215) passes through the tube opening and is sealed and attached to the side wall of the rear chamber, and the waterproof and breathable membrane layer (212) located at the end of the generating cover tube (210) is aligned with the input end of the guide pipeline (213); The output end of the L-shaped pipeline penetrates the inner wall of the side wall of the heat pump dryer body (10) and communicates with the front chamber, and the end of the forced ejector pin (208) located inside the output end of the L-shaped pipeline faces the spare actuator located in the front chamber.

2. The drying equipment for packaging carton processing according to claim 1 is characterized in that: One end of the hollow guide column (215) away from the generating cover cylinder (210) is detachably connected to the central filter screen (214) in the elastic abutment member; When the return spring in the elastic abutment is in an initial relaxed state, the hole on the side wall of the hollow guide column (215) is located outside the generator cover cylinder (210).

3. The drying equipment for packaging carton processing according to claim 1 is characterized in that: The input end of the one-way air valve (203) passes through the side wall of the heat pump dryer body (10) and is connected to the rear chamber, and the output end of the one-way air valve (203) is connected to the atmosphere.

4. The drying equipment for packaging carton processing according to claim 1 is characterized in that: One end of the negative pressure communication pipeline (218) away from the narrow mouth section (217) passes through the side wall of the heat pump dryer body (10) and is connected to the rear chamber.

5. The drying equipment for packaging carton processing according to claim 1 is characterized in that: The standby actuator comprises a secondary drying box (206) located in the front chamber, and a breathable cloth layer (209) is connected to an opening at the end of the secondary drying box (206); The inner cavity of the auxiliary drying box (206) is filled with loose water-absorbing and swelling granular media (205).

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