Empty bag removing device for injection soft bag production

Abstract

The invention belongs to the technical field of bagging production, and particularly relates to an empty bag removing device for injection soft bag production, which comprises a working platform, a conveying belt I is mounted above the working platform, injection bags arranged at equal intervals are placed above the conveying belt I, and the injection bags are packaged by light-proof aluminum plastic films; the first conveying belt is conveyed through a plurality of conveying wheels, the conveying wheels are controlled through an external controller, a supporting frame is installed on the side of the working platform, and a containing platform is fixedly installed above the supporting frame. The hollow light-proof aluminum plastic film can be blown away from the position above the first conveying belt through compressed air blown out of the air blowing pipe, the light-proof aluminum plastic film containing the injection bags can be reserved above the first conveying belt and continues to be conveyed downwards, and therefore the problem that no product exists in the empty film can be solved quickly and simply through the design, use of the injection bags in the follow-up process is facilitated, and the production efficiency is improved. And the applicability is high.

Description

Technical Field

[0001] The invention belongs to the technical field of bagging production, in particular to an empty bag rejecting device for producing injection soft bags. Background Art

[0002] The soft bag for injection is a container used to package large-volume injections. The soft bag can be hung during infusion or the patient's own weight can be used for infusion. It can shrink completely by itself and does not require an air needle during infusion. It is a truly closed infusion, which can avoid contamination of the drug solution by the infusion environment.

[0003] The soft bags for injection need to be packaged during production, that is, wrapped with a layer of transparent plastic outer film to wrap the product. The main function is to prevent the bag from being damaged by external forces, from being polluted by the external environment, and to prevent the product from losing water.

[0004] However, some injections need to be stored in a light-proof environment to ensure product quality. Therefore, they are packaged in light-proof aluminum-plastic film. In the case of two types of packaging bags, one is transparent, so you can see whether there is a product in the package, and the other is light-proof and opaque, so you can't see the product in the package. When the light-proof and opaque bags are produced and transported centrally into packaging boxes, some of the packaging bags may have the problem of empty bags, that is, there is no injection bag inside but it is still packaged and transported inside.

[0005] To this end, the present invention provides an empty bag rejecting device for producing soft injection bags. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is as follows: the empty bag rejection device for the production of injection soft bags of the present invention comprises a working platform, a conveyor belt 1 is installed above the working platform, injection bags arranged at equal distances are placed above the conveyor belt 1, and the injection bags are packaged with light-proof aluminum-plastic film;

[0008] The conveyor belt 1 is transported by a plurality of transmission wheels, and the transmission wheels are controlled by an external controller. A support frame is installed on the side of the working platform, and a placement platform is fixedly installed on the top of the support frame. Two blowing pipes are installed on the top of the placement platform, and the outlet ends of the blowing pipes face the top of the conveyor belt 1 and are aligned with the conveying end. The ends of the two blowing pipes away from the conveyor belt 1 are jointly equipped with an air supply pipe, and the gas blown out by the blowing pipe can blow the hollow light-proof aluminum-plastic film away from the top of the conveyor belt 1;

[0009] In order to prevent the bag body from being damaged by external forces, from being polluted by the external environment, and to prevent the product from losing water, it is necessary to wrap a layer of light-proof aluminum-plastic film on the surface of the injection bag. However, since it is light-shielding and the injection bag inside cannot be seen, if it is transmitted on the upper surface of the conveyor belt 1, and the interior of the light-proof aluminum-plastic film is hollow, it is currently difficult to distinguish the injection bag in this situation, and therefore the empty bag rejecting device of the present invention is proposed; during specific operation, a blow pipe is first arranged at the side of the end of the conveyor belt 1, and when the injection bags arranged at equal distances are normally transported on the conveyor belt 1, the compressed air blown out by the blow pipe can blow the hollow light-proof aluminum-plastic film away from the top of the conveyor belt 1, while the light-proof aluminum-plastic film containing the injection bag will remain on the top of the conveyor belt 1 and continue to be transported downwards. With such a design, the problem of empty film without product can be solved quickly and simply, and the subsequent use of the injection bag is convenient, and the applicability is strong.

[0010] Preferably, the side of the air supply pipe away from the blowing pipe is connected to an external blower, and a roller is installed under the support frame, and the support frame can be driven by the roller to move to a suitable position of the conveyor belt.

[0011] Preferably, an inclined recovery plate is installed inside the working platform and on one side of the conveyor belt. The inclined recovery plate is designed to be aligned with the blowing pipe, and retaining frames are installed on both side walls of the inclined recovery plate. The lower side of the inclined recovery plate is connected to an external recovery cylinder. During operation, since the inclined recovery plate is aligned with the blowing pipe, if there are unqualified products above the conveyor belt, the blowing pipe can blow the unqualified products onto the inclined recovery plate as soon as possible, and drop them into the external recovery cylinder as soon as possible. The retaining frame has a certain limiting effect, which prevents the unqualified products from falling to the outside of the working platform, which is conducive to the subsequent centralized recovery of unqualified products.

[0012] Preferably, a rotating shaft is rotatably arranged inside the working platform and below one end of the conveyor belt, the rotating shaft is connected to the output end of an external driving motor, a transfer disk is fixedly installed on the outer circumference of the rotating shaft, a conveyor belt 2 is arranged inside the working platform, the conveyor belt 2 is located below one end of the conveyor belt, a transfer unit is installed on the outer circumference of the transfer disk, and the transfer unit is used to transfer qualified injection liquid bags to above the second conveyor belt.

[0013] Preferably, the transfer unit includes a temporary storage rack installed on the outer peripheral surface of the transfer disk, the temporary storage rack is provided with a cavity inside, the shape of the cavity is adapted to the shape of the injection liquid bag, a contact plate is slidably arranged inside the temporary storage rack, the lower end surface of the contact plate is installed with contact one, the bottom wall of the temporary storage rack is installed with contact two, and the contact one and contact two are arranged in the same vertical plane.

[0014] Preferably, the temporary storage racks are provided in multiple groups and are designed in a circular array on the outer peripheral surface of the transfer disk, and the inner walls of the temporary storage racks are attached with rubber pads.

[0015] Preferably, the inner wall of the temporary storage rack is provided with a slide groove compatible with the contact plate, and the lower end surface of the contact plate is installed with a support spring, and the side of the support spring away from the contact plate is connected to the inner wall of the temporary storage rack; during operation, since the slide groove is provided on the inner wall of the temporary storage rack, it is convenient for the contact plate to drive the movement of contact one, ensuring perfect contact between contact one and contact two, and the design of the support spring can facilitate the mutual distance between contact one and contact two when there is no product inside the temporary storage rack, thereby facilitating the subsequent packaging process of qualified products.

[0016] Preferably, a conveyor belt is provided above the working platform and on one side of the transfer disk, the conveyor belt is controlled by an external driver, a plurality of transport racks are provided on the upper end surface of the conveyor belt, a cavity adapted to the injection liquid bag is provided inside the transport rack; one group of the transport racks is in contact with the temporary storage rack, a trigger unit is provided inside the transport rack, and the trigger unit is used to control the transport rack to move to the side close to the second conveyor belt.

[0017] Preferably, the trigger unit includes a slide plate inside the transport frame, contact three is installed at the bottom of the slide plate, contact four is installed on the inner wall of the transport frame, an L-shaped bracket is arranged inside the working platform and on one side of the transport frame, an electric push rod is installed on the side wall of the L-shaped bracket, and the telescopic end of the electric push rod is connected to the side wall of one of the transport frames; the conveyor belt 2 and the transmission belt are arranged in the same plane.

[0018] Preferably, a spring is installed at the bottom of the transport frame, and the upper end of the spring is connected to the bottom of the skateboard. Such a design can facilitate the skateboard to recover when it is not subjected to force.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. The empty bag rejecting device for producing injection liquid soft bags described in the present invention can blow the hollow light-proof aluminum-plastic film away from the top of the conveyor belt 1 through the compressed air blown out by the blowing pipe, while the light-proof aluminum-plastic film containing the injection liquid bag will remain above the conveyor belt 1 and continue to be conveyed downward. Such a design can quickly and simply solve the problem of empty film without product, facilitate the subsequent use of injection liquid bags, and has strong applicability.

[0021] 2. The present invention describes an empty bag rejection device for the production of soft bags for injection. When a qualified product falls from the end of conveyor belt one, it will fall into the cavity provided in the temporary storage rack, and the contact plate in the cavity will move downward under the pressure of the qualified product, and drive contact point one and contact point two to contact. At this time, the external controller circuit connected to the rotating shaft is connected, while the external controller circuit connected to conveyor belt one is disconnected; therefore, conveyor belt one will stop rotating first, and the rotating shaft will drive the transfer disk to rotate toward the side close to conveyor belt two, and then the qualified products in the cavity of the temporary storage rack will slide onto conveyor belt two, so that the qualified products can be re-sorted, which is convenient for subsequent product packaging. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] Figure 1 is a stereogram of the present invention;

[0024] Figure 2 It is a schematic diagram of the support frame structure in the present invention;

[0025] Figure 3 It is a schematic diagram of the structure of the inclined recovery plate in the present invention;

[0026] Figure 4 It is a schematic diagram of the structure of the temporary storage rack in the present invention;

[0027] Figure 5 It is a schematic diagram of the cross-sectional structure of the temporary storage rack in the present invention;

[0028] Figure 6 It is a schematic diagram of the structure of the transfer tray part of the present invention;

[0029] Figure 7 It is a schematic diagram of the structure of the transmission belt part in the present invention;

[0030] Figure 8 It is a schematic diagram of the structure of the transport rack part of the present invention;

[0031] Fig. 9 It is a schematic diagram of the cross-sectional structure of the transport rack in the present invention.

[0032] In the figure: 1. working platform; 2. conveyor belt 1; 201. injection liquid bag; 3. support frame; 4. placement platform; 5. blowing pipe; 501. air supply pipe; 6. inclined recovery plate; 7. retaining frame; 8. rotating shaft; 9. transfer disk; 10. conveyor belt 2; 11. temporary storage rack; 111. contact 2; 12. contact plate; 121. contact 1; 13. support spring; 14. conveyor belt; 15. transport rack; 16. slide plate; 161. contact 3; 17. contact 4; 18. L-shaped bracket; 19. electric push rod. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0034] like Figures 1 to 4 As shown, an empty bag rejection device for producing soft injection bags according to an embodiment of the present invention comprises a working platform 1, a conveyor belt 2 is installed above the working platform 1, injection bags 201 arranged at equal distances are placed above the conveyor belt 2, and the injection bags 201 are packaged with light-proof aluminum-plastic film;

[0035] The conveyor belt 2 is transported by a plurality of transmission wheels, and the transmission wheels are controlled by an external controller. A support frame 3 is installed on the side of the working platform 1, and a placement platform 4 is fixedly installed above the support frame 3. Two blowing pipes 5 are installed above the placement platform 4. The outlet ends of the blowing pipes 5 face the top of the conveyor belt 2 and are aligned with the conveying end. The ends of the two blowing pipes 5 away from the conveyor belt 2 are jointly installed with an air supply pipe 501. The gas blown out of the blowing pipe 5 can blow the hollow light-proof aluminum-plastic film away from the top of the conveyor belt 2.

[0036] In order to protect the bag body from damage by external forces, from pollution by the external environment, and to prevent the product from losing water, it is necessary to wrap a layer of light-proof aluminum-plastic film on the surface of the injection bag 201. However, since it is light-shielding and the injection bag 201 inside cannot be seen, if it is transported on the upper surface of the conveyor belt 2, and the interior of the light-proof aluminum-plastic film is hollow, it is currently difficult to distinguish the injection bag 201 in this situation, and therefore an empty bag rejection device of the present invention is proposed; in specific operation, a blowing pipe 5 is first arranged on the side of the end of the conveyor belt 2, when the injection bags 201 arranged at equal distances are normally transported on the conveyor belt 2, the compressed air blown out by the blowing pipe 5 can blow the hollow light-proof aluminum-plastic film away from the top of the conveyor belt 2, and the light-proof aluminum-plastic film containing the injection bag 201 will remain on the top of the conveyor belt 2 and continue to be transported downward. Such a design can quickly and simply solve the problem of empty film without product, facilitate the subsequent use of the injection bag 201, and has strong applicability.

[0037] It should be noted that the gas blown out by the blowing pipe 5 is controllable, and the gas pressure blown out is sufficient to blow the hollow light-proof aluminum-plastic film away from the top of the conveyor belt 2, while the light-proof aluminum-plastic film containing the injection bag 201 will not be blown away from the top of the conveyor belt 2;

[0038] It should also be noted that, in the embodiment of the present invention, the hollow light-proof aluminum-plastic film is marked as an unqualified product, and the light-proof aluminum-plastic film containing the injection bag 201 is marked as a qualified product.

[0039] The side of the air supply pipe 501 away from the blowing pipe 5 is connected to an external blower, and a roller is installed at the bottom of the support frame 3, which can drive the support frame 3 to move to a suitable position on the conveyor belt 2; when working, the air supply pipe 501 is connected to the external blower to control the pressure of the compressed gas blown out, so as to facilitate blowing unqualified products away from the top of the conveyor belt 2, and a roller is designed on the support frame 3, which can adaptively adjust the position of the blowing pipe 5 according to the position of the end of the conveyor belt 2, thereby improving the removal effect of empty bags.

[0040] An inclined recovery plate 6 is installed inside the working platform 1 and on the side of the conveyor belt 2. The inclined recovery plate 6 is designed to be aligned with the blowing pipe 5. Both side walls of the inclined recovery plate 6 are installed with a retaining frame 7. The lower side of the inclined recovery plate 6 is connected to an external recovery cylinder.

[0041] During operation, since the inclined recovery plate 6 is aligned with the blowing pipe 5, if there are unqualified products above the conveyor belt 2, the blowing pipe 5 can blow the unqualified products onto the inclined recovery plate 6 as quickly as possible and drop them into the external recovery cylinder as quickly as possible. The set retaining frame 7 has a certain limiting effect, which prevents the unqualified products from falling to the outside of the working platform 1, which is conducive to the subsequent centralized recovery of unqualified products.

[0042] like Figures 2 to 7 As shown, a rotating shaft 8 is rotatably arranged inside the working platform 1 and below the end of the conveyor belt 2, the rotating shaft 8 is connected to the output end of the external driving motor, a transfer disk 9 is fixedly installed on the outer circumference of the rotating shaft 8, a conveyor belt 10 is arranged inside the working platform 1, the conveyor belt 10 is located below the end of the conveyor belt 2, a transfer unit is installed on the outer circumference of the transfer disk 9, and the transfer unit is used to transfer the qualified injection bag 201 to the top of the conveyor belt 10;

[0043] During operation, since the blowing pipe 5 continuously blows air toward the top of the conveyor belt 2, the injection liquid bags 201 arranged at equal distances on the conveyor belt 2 will be disturbed by the wind, which is not conducive to the subsequent packaging of qualified products. Therefore, the following embodiment is further proposed. When the qualified products fall along the rotation direction of the conveyor belt 2, they will fall inside the transfer unit on the outer peripheral surface of the transfer disk 9. Under the action of the transfer unit, the qualified injection liquid bags 201 can be transferred to the top of the conveyor belt 2 10. In this way, the qualified injection liquid bags 201 can be re-sorted, and all the injection liquid bags 201 can be conveniently packaged and used.

[0044] The transfer unit includes a temporary storage rack 11 installed on the outer peripheral surface of the transfer disk 9, the temporary storage rack 11 is provided with a cavity inside, the shape of the cavity is adapted to the shape of the injection bag 201, the temporary storage rack 11 is slidably provided with a contact plate 12 inside, the lower end surface of the contact plate 12 is provided with a contact 1 121, the bottom wall of the temporary storage rack 11 is provided with a contact 2 111, the contact 1 121 and the contact 2 111 are provided on the same vertical plane; when working, in the initial state, the contact 1 121 and the contact 2 111 are not in contact; refer to the attached Figure 4 and Figure 6 As shown, at this time, the top of the temporary storage rack 11 is aligned with the end of the conveyor belt 1 2. When a qualified product falls from the end of the conveyor belt 1 2, it will fall into the cavity provided in the temporary storage rack 11, and the contact plate 12 in the cavity will move downward under the pressure of the qualified product, and drive the contact point 1 121 and the contact point 2 111 to contact. At this time, the external controller circuit connected to the rotating shaft 8 is connected, and the external controller circuit connected to the conveyor belt 1 2 is disconnected; therefore, the conveyor belt 1 2 will stop rotating first, and the rotating shaft 8 will drive the transfer disk 9 to rotate toward the side close to the conveyor belt 2 10, and then the qualified products in the cavity of the temporary storage rack 11 will slide above the conveyor belt 2 10, so that the qualified products can be re-sorted, which is convenient for subsequent product packaging;

[0045] The temporary storage racks 11 are provided in multiple groups and are designed in a circular array on the outer peripheral surface of the transfer plate 9. The inner wall of the temporary storage racks 11 is attached with a rubber pad;

[0046] During operation, since a plurality of temporary storage racks 11 are arranged on the outer peripheral surface of the transfer disk 9, when the qualified products inside one of the temporary storage racks 11 slide onto the conveyor belt 10, since the temporary storage rack 11 is in a skewed state, the contact plate 12 will drive the contact point 121 away from the contact point 2 111. At this time, another group of temporary storage racks 11 also just moves to the position corresponding to the end of the conveyor belt 2, and the external controller circuit connected to the rotating shaft 8 is disconnected, while the external controller circuit connected to the conveyor belt 2 is connected, and then the conveyor belt 2 will continue to transport the products above, so that the continuous operation of the products above can be convenient.

[0047] like Figures 4 to 9 As shown, the inner wall of the temporary storage rack 11 is provided with a slide groove compatible with the contact plate 12, and the lower end surface of the contact plate 12 is installed with a support spring 13, and the side of the support spring 13 away from the contact plate 12 is connected to the inner wall of the temporary storage rack 11; during operation, since the slide groove is set on the inner wall of the temporary storage rack 11, it is convenient for the contact plate 12 to drive the movement of the contact 1 121, ensuring the perfect contact between the contact 1 121 and the contact 2 111, and the design of the support spring 13 can facilitate the mutual distance between the contact 1 121 and the contact 2 111 when there is no product in the temporary storage rack 11, thereby facilitating the subsequent packaging process of qualified products.

[0048] A conveyor belt 14 is arranged above the working platform 1 and on one side of the transfer disk 9. The conveyor belt 14 is controlled by an external driver. A plurality of transport racks 15 are arranged on the upper end surface of the conveyor belt 14. A cavity adapted to the injection bag 201 is provided inside the transport racks 15. One group of the transport racks 15 is in contact with the temporary storage rack 11. A trigger unit is arranged inside the transport racks 15. The trigger unit is used to control the transport racks 15 to move toward the side close to the conveyor belt 2 10.

[0049] When working, refer to the attached Figure 8 As shown, when the temporary storage rack 11 storing qualified products rotates to the side close to the transport rack 15, the qualified products inside the temporary storage rack 11 will slide into the inside of the transport rack 15, and then under the action of the trigger unit of the transport rack 15, the transport rack 15 above the conveyor belt 14 will be pushed onto the conveyor belt 2 10, so that it is convenient to subsequently transfer the qualified products inside multiple transport racks 15 in a centralized manner.

[0050] The trigger unit includes a slide plate 16 inside the transport frame 15, a contact point 3 161 is installed at the bottom of the slide plate 16, a contact point 4 17 is installed on the inner wall of the transport frame 15, an L-shaped bracket 18 is arranged inside the working platform 1 and located on one side of the transport frame 15, an electric push rod 19 is installed on the side wall of the L-shaped bracket 18, and the telescopic end of the electric push rod 19 is connected to the side wall of one of the transport frames 15; the conveyor belt 2 10 and the conveyor belt 14 are arranged in the same plane;

[0051] During operation, when qualified products slide from the temporary storage rack 11 to the inside of the transport rack 15, the slide plate 16 is subjected to the pressure of the qualified products, and the slide plate 16 will drive the contact point three 161 and the contact point four 17 to contact each other. At this time, the external circuit is connected, and the telescopic end of the electric push rod 19 will be controlled to move closer to the side of the transport rack 15 in contact with it, so that the transport rack 15 is pushed onto the conveyor belt 2 10, and then the electric push rod 19 returns to its initial position, and the next group of transport racks 15 above the conveyor belt 14 will move to the position corresponding to the temporary storage rack 11. By repeating the steps in this way, multiple transport racks 15 can be moved above the conveyor belt 14, and then the subsequent robot process can be convenient for the qualified products inside the transport racks 15 arranged side by side to be taken out together and transferred to the external packaging box, thereby facilitating the subsequent centralized packaging and use of the injection liquid bags 201.

[0052] It should be noted that the transfer tray 9 and the temporary storage rack 11 are designed to facilitate the reordering of the injection liquid bags 201 that have been deflected by wind force, so as to facilitate the subsequent centralized processing of qualified injection liquid bags 201, and to transfer the centralized injection liquid bags 201 to the external packaging box through an external robot process.

[0053] A spring is installed at the bottom of the transport frame 15, and the upper end of the spring is connected to the bottom of the slide plate 16. Such a design can facilitate the slide plate 16 to recover when it is not under force.

[0054] During operation, in order to protect the bag body from damage by external forces, from pollution by the external environment, and to prevent the product from losing water, etc., it is necessary to wrap the surface of the injection bag 201 with a layer of light-proof aluminum-plastic film. However, since it is light-shielding and the injection bag 201 inside cannot be seen, if it is transported on the upper surface of the conveyor belt 2, and the inside of the light-proof aluminum-plastic film is hollow, it is currently difficult to distinguish the injection bag 201 in this situation. Therefore, an empty bag rejecting device of the present invention is proposed; during specific operation, a blowing pipe 5 is firstly arranged on the side of the end of the conveyor belt 2. When the injection bags 201 arranged at equal distances are normally transported on the conveyor belt 2, the compressed air blown out by the blowing pipe 5 can remove the hollow The light-proof aluminum-plastic film is blown away from the top of the conveyor belt 2, while the light-proof aluminum-plastic film containing the injection bag 201 will remain on the top of the conveyor belt 2 and continue to be conveyed downward. Such a design can quickly and simply solve the problem of empty film without products, facilitate the subsequent use of the injection bag 201, and has strong applicability; since the inclined recovery plate 6 is aligned with the blowing pipe 5, if there are unqualified products above the conveyor belt 2, the blowing pipe 5 can blow the unqualified products onto the inclined recovery plate 6 as soon as possible, and drop them into the external recovery cylinder as soon as possible, and the provided baffle 7 has a certain limiting effect, which prevents the unqualified products from falling to the outside of the working platform 1, which is conducive to the subsequent centralized recovery of unqualified products;

[0055] In the initial state, the contact 121 and the contact 2 111 are not in contact; Figure 4 and Figure 6 As shown, at this time, the top of the temporary storage rack 11 is aligned with the end of the conveyor belt 1 2. When a qualified product falls from the end of the conveyor belt 1 2, it will fall into the cavity provided in the temporary storage rack 11, and the contact plate 12 in the cavity will move downward under the pressure of the qualified product, and drive the contact point 1 121 and the contact point 2 111 to contact. At this time, the external controller circuit connected to the rotating shaft 8 is connected, and the external controller circuit connected to the conveyor belt 1 2 is disconnected; therefore, the conveyor belt 1 2 will stop rotating first, and the rotating shaft 8 will drive the transfer disk 9 to rotate toward the side close to the conveyor belt 2 10, and then the qualified products in the cavity of the temporary storage rack 11 will slide above the conveyor belt 2 10, so that the qualified products can be re-sorted, which is convenient for subsequent product packaging;

[0056] Since multiple groups of temporary storage racks 11 are arranged on the outer peripheral surface of the transfer disk 9, when the qualified products in one group of temporary storage racks 11 slide onto the conveyor belt 2 10, since the temporary storage rack 11 is in a skewed state, the contact plate 12 will drive the contact point 121 away from the contact point 2 111. At this time, the other group of temporary storage racks 11 also just moves to the position corresponding to the end of the conveyor belt 2, and the external controller circuit connected to the rotating shaft 8 is disconnected, while the external controller circuit connected to the conveyor belt 2 is connected, and then the conveyor belt 2 will continue to transport the upper products, so that the continuous operation of the upper products can be facilitated; when the qualified products slide from the temporary storage rack 11 to the inside of the transport rack 15, the slide plate 16 is affected by the qualified products. The slide plate 16 will drive the contact point three 161 and the contact point four 17 to contact each other. At this time, the external circuit is connected, which will control the telescopic end of the electric push rod 19 to move closer to the side of the transport rack 15 in contact with it, so that the transport rack 15 is pushed onto the conveyor belt 2 10, and then the electric push rod 19 returns to its initial position, and the next group of transport racks 15 above the conveyor belt 14 will move to the position corresponding to the temporary storage rack 11. By repeating the steps in this way, multiple transport racks 15 can be moved above the conveyor belt 14, and then the subsequent robot process can facilitate the qualified products inside the transport racks 15 lined up together to be jointly taken out and transferred to the external packaging box, thereby facilitating the subsequent centralized packaging and use of the injection liquid bags 201.

[0057] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An empty bag rejection device for producing soft injection bags, comprising a working platform (1), characterized in that: A conveyor belt 1 (2) is installed above the working platform (1), and injection bags (201) arranged at equal distances are placed above the conveyor belt 1 (2), and the injection bags (201) are packaged with light-proof aluminum-plastic films; The conveyor belt (2) is transported by a plurality of transmission wheels, and the transmission wheels are controlled by an external controller. A support frame (3) is installed on the side of the working platform (1), and a placement platform (4) is fixedly installed above the support frame (3). Two blowing pipes (5) are installed above the placement platform (4), and the outlet ends of the blowing pipes (5) face the top of the conveyor belt (2) and are aligned with the conveying end. The ends of the two blowing pipes (5) away from the conveyor belt (2) are jointly installed with an air supply pipe (501), and the gas blown out by the blowing pipes (5) can blow the hollow light-proof aluminum-plastic film away from the top of the conveyor belt (2).

2. The empty bag rejection device for producing soft injection bags according to claim 1, characterized in that: The side of the air supply pipe (501) away from the blowing pipe (5) is connected to an external blower, and a roller is installed below the support frame (3), and the support frame (3) can be driven by the roller to move to a suitable position of the conveyor belt (2).

3. The empty bag rejection device for producing soft injection bags according to claim 2, characterized in that: An inclined recovery plate (6) is installed inside the working platform (1) and on the side of the conveyor belt (2). The inclined recovery plate (6) is designed to be aligned with the blowing pipe (5). Both side walls of the inclined recovery plate (6) are installed with retaining frames (7). The lower side of the inclined recovery plate (6) is connected to an external recovery cylinder.

4. The empty bag rejection device for producing soft injection bags according to claim 3, characterized in that: A rotating shaft (8) is rotatably arranged inside the working platform (1) and located below the end of the conveyor belt one (2). The rotating shaft (8) is connected to the output end of an external driving motor. A transfer disk (9) is fixedly installed on the outer peripheral surface of the rotating shaft (8). A conveyor belt two (10) is arranged inside the working platform (1). The conveyor belt two (10) is located below the end of the conveyor belt one (2). A transfer unit is installed on the outer peripheral surface of the transfer disk (9). The transfer unit is used to transfer qualified injection bags (201) to the top of the conveyor belt two (10).

5. The empty bag rejection device for producing soft injection bags according to claim 4, characterized in that: The transfer unit comprises a temporary storage rack (11) mounted on the outer peripheral surface of the transfer disk (9), a cavity is provided inside the temporary storage rack (11), the shape of the cavity is adapted to the shape of the injection bag (201), a contact plate (12) is slidably provided inside the temporary storage rack (11), a contact point 1 (121) is installed on the lower end surface of the contact plate (12), a contact point 2 (111) is installed on the bottom wall of the temporary storage rack (11), and the contact point 1 (121) and the contact point 2 (111) are arranged in the same vertical plane.

6. The empty bag rejection device for producing soft injection bags according to claim 5, characterized in that: The temporary storage racks (11) are arranged in multiple groups and are designed in a circular array on the outer peripheral surface of the transfer disk (9). The inner walls of the temporary storage racks (11) are attached with rubber pads.

7. The empty bag rejection device for producing soft injection bags according to claim 5, characterized in that: The inner wall of the temporary storage rack (11) is provided with a slide groove matched with the contact plate (12), and a support spring (13) is installed on the lower end surface of the contact plate (12). The side of the support spring (13) away from the contact plate (12) is connected to the inner wall of the temporary storage rack (11).

8. The empty bag rejection device for producing soft injection bags according to claim 5, characterized in that: A conveyor belt (14) is arranged above the working platform (1) and on one side of the transfer disk (9); the conveyor belt (14) is controlled by an external driver; a plurality of transport racks (15) are arranged on the upper end surface of the conveyor belt (14); a cavity adapted to the injection bag (201) is provided inside the transport racks (15); one group of the transport racks (15) is in contact with the temporary storage rack (11); a trigger unit is arranged inside the transport rack (15); the trigger unit is used to control the transport rack (15) to move toward the side close to the second conveyor belt (10).

9. The empty bag rejection device for producing soft injection bags according to claim 8, characterized in that: The trigger unit comprises a slide plate (16) inside the transport frame (15), a contact point 3 (161) is installed at the bottom of the slide plate (16), a contact point 4 (17) is installed on the inner wall of the transport frame (15), an L-shaped bracket (18) is arranged inside the working platform (1) and located on one side of the transport frame (15), an electric push rod (19) is installed on the side wall of the L-shaped bracket (18), and the telescopic end of the electric push rod (19) is connected to the side wall of one of the transport frames (15); the conveyor belt 2 (10) and the transmission belt (14) are arranged in the same plane.

10. The empty bag rejection device for producing soft injection bags according to claim 9, characterized in that: A spring is installed at the bottom of the transport frame (15), and the upper end of the spring is connected to the bottom of the slide plate (16).

Images