A device for immunizing young birds

Abstract

This invention provides a poultry immunization device, comprising a body, a clamping unit and an eye / nasal drop unit disposed on one side of the bottom of the body, and an injection unit disposed on the other side of the bottom of the body. The injection unit is connected to the clamping unit and the eye / nasal drop unit via pipes. Protective shielding units are disposed on the surfaces of the clamping unit and the eye / nasal drop unit. A buffer storage compartment is disposed at the bottom of the clamping unit and the eye / nasal drop unit to temporarily store the immunized poultry. A control unit is disposed at the top of the body, and the control unit is signal-connected to the clamping unit, the injection unit, and the eye / nasal drop unit. The clamping unit facilitates operation, ensures accurate immunization injection, and provides a suitable clamping position for the poultry. Furthermore, it ensures high operational safety, as the poultry automatically moves up and down after being clamped, avoiding the risk of accidental injury to the operator.

Description

Technical Field

[0001] This utility model relates to the technical field of immunization and spraying of injection solutions for chicks, and specifically to a chick immunization device. Background Technology

[0002] In existing technologies, it is necessary to inject the inoculation liquid into the chicks or spray the medication into their eyes and noses to observe the effects of the inoculation liquid and the sprayed medication on the growth process of the chicks.

[0003] Existing equipment for injecting inoculating liquids into chicks or spraying medications into their eyes and nostrils still has the following defects and shortcomings in practical use:

[0004] 1) Existing poultry immunization injection machines require manual handling of poultry for immunization, which places high demands on the operator's skills and experience, and poses a risk of accidental hand injury to the operator. On the other hand, the position of the poultry held by the operator may deviate from the injection position, which directly affects the immunization effect.

[0005] 2) Existing poultry immunization injection machines can only perform single-needle injections, which is inefficient. Some immunization agents cannot be mixed, so they cannot perform two-component injections at the same time.

[0006] 3) In the existing technology, the method of administering eye and nasal drops to chicks is to use a nasal dropper to administer eye and nasal drops to chicks manually. This requires the chicks to grasp, bind, and drip the liquid. This method has disadvantages such as high stress response in chicks, low production efficiency, high labor intensity, and poor working experience. On the other hand, due to poor immunization effect, some chicks may not be immunized properly, or the dosage may be inaccurate, which will affect the effectiveness of eye immunization.

[0007] Therefore, there is an urgent need to provide a new solution to address the defects and shortcomings of the existing technologies. Utility Model Content

[0008] In order to overcome the defects and shortcomings of the existing technology, this utility model provides an immunization device for poultry chicks.

[0009] The technical solution provided by this utility model is as follows:

[0010] A poultry immunization device includes a body, characterized in that: a clamping unit and an eye / nose drop unit are provided on one side of the bottom of the body, an injection unit is provided on the other side of the bottom of the body, the injection unit is connected to the clamping unit and the eye / nose drop unit respectively through pipes, a protective shielding unit is provided on the surface of the clamping unit and the eye / nose drop unit, a buffer storage compartment is provided at the bottom of the clamping unit and the eye / nose drop unit to temporarily store the immunized poultry, and a control unit is provided at the top of the body, the control unit being signal connected to the clamping unit, the injection unit and the eye / nose drop unit respectively.

[0011] As a further preferred embodiment of the present invention, the clamping unit includes a clamping block assembly disposed on the front side of the machine body. The clamping block assembly includes a clamping block, and a clamping rod that can move towards or away from each other is disposed on the front side of the clamping block. A trigger block is disposed inside the clamping block and between the two clamping rods. When the trigger block has no pushing action, the two clamping rods move away from each other. When the trigger block is pushed, it drives the two clamping rods to move towards each other. A reset cylinder that helps the trigger block reset is disposed on the rear side of the trigger block. The piston rod of the reset cylinder is connected to the trigger block.

[0012] As a further preferred embodiment of the present invention, the clamping unit further includes a lifting cylinder, the cylinder body of which is fixed inside the machine body, and the piston rod end of which is fixedly connected to its bottom clamping block assembly.

[0013] As a further preferred embodiment of this utility model, a horizontal cylinder is fixedly connected to the middle of the lifting cylinder, and the telescopic piston rod of the horizontal cylinder is fixedly connected to the needle cylinder and the control block.

[0014] As a further preferred embodiment of this utility model, the piston rod of the needle cylinder is fixedly connected to the injection needle and the eye / nasal drop spray head on both sides respectively.

[0015] As a further preferred embodiment of the present invention, the injection unit includes an injection cylinder, the top of the piston rod of the injection cylinder is fixedly connected to a buffer block, the buffer block can approach and abut against the injection rod of the top syringe, the syringe barrel is fixed to one side of the clamping unit, and the top injection port of the syringe barrel is connected to the injection needle and the eye / nasal drop unit through pipes.

[0016] As a further preferred embodiment of this utility model, the injection time and flow rate of the syringe can be adjusted as needed.

[0017] As a further preferred embodiment of the present invention, a chick basket is placed at the bottom of the buffer storage chamber. The bottom of the buffer storage chamber is selectively connected to the chick basket through an automatically opening and closing door. When the number of chicks that have completed immunization reaches a preset number, the door automatically closes, and subsequent chicks that have completed immunization are temporarily stored inside the buffer storage chamber.

[0018] As a further preferred embodiment of this utility model,

[0019] The clamping block assembly also includes a position switch, which is triggered only when the two clamping rods move toward each other to a preset position. When the position switch is triggered, the lifting cylinder begins to rise.

[0020] The lifting cylinder also includes a lifting upper stop switch and a lifting lower stop switch. When the piston rod of the lifting cylinder moves to the lifting upper stop position and activates the lifting upper stop switch, a start signal is sent to the horizontal cylinder. When the piston rod of the lifting cylinder moves to the lifting lower stop position and activates the lifting lower stop switch, the immunization process is determined to be over.

[0021] The horizontal cylinder also includes a rear stop position switch. When the piston rod of the horizontal cylinder moves to the rear stop position and activates the rear stop position switch, a start signal is sent to the needle cylinder.

[0022] The needle cylinder also includes a needle upper stop position switch and a needle lower stop position switch. When the piston rod of the needle cylinder moves to the needle lower stop position and activates the needle lower stop position switch, a start signal is sent to the injection cylinder. When the piston rod of the needle cylinder moves to the needle upper stop position and activates the needle upper stop position switch, a start signal is sent to the horizontal cylinder.

[0023] The injection cylinder also includes an injection top dead center switch and an injection bottom dead center switch. When the piston rod of the injection cylinder moves to the injection top dead center position and activates the injection top dead center switch, the injection is confirmed to be finished, and the injection cylinder moves in the opposite direction to release the injection rod. When the piston rod of the injection cylinder moves to the injection bottom dead center position and activates the injection bottom dead center switch, the injection is confirmed to be finished, and the injection cylinder returns to its initial state.

[0024] The beneficial effects of this utility model compared to the prior art include:

[0025] 1) This utility model provides a poultry immunization device. By setting up a clamping unit, it is easy to operate. Operators do not need long-term training to master the method of placing poultry. After the operator places the poultry at the designated point, the device automatically clamps the head of the poultry and automatically performs immunization injection. After the injection is completed, the device is automatically released. At the same time, it ensures accurate immunization injection position and appropriate poultry clamping position. In addition, it ensures high operational safety. After the poultry is clamped, it automatically moves up and down, avoiding the risk of accidental injury to the operator.

[0026] 2) This utility model provides a poultry immunization device, which can realize simultaneous injection of two needles by setting up a clamping unit and an injection unit. It can inject two or more immunizing agents at the same time, which is convenient for injecting some immunizing agents that cannot be mixed at the same time, and the simultaneous injection efficiency is high.

[0027] 3) This utility model provides a poultry immunization device, which is fixedly connected to the injection needle and the eye drop / nasal spray head on both sides of the piston rod of the needle cylinder, so that the eye drop / nasal spraying of medicine and the immunization injection of poultry can be carried out simultaneously, saving time and making it more efficient; at the same time, it can make the dosage of eye drop solution uniform for each poultry, which is more scientific and reasonable; in addition, it can reduce the labor intensity of workers, save labor costs; and reduce the stress response of poultry, promoting the healthy growth of poultry. Attached Figure Description

[0028] Figure 1 The front view of the structure of a poultry immunization device provided by this utility model.

[0029] Figure 2 A side view of the structure of a poultry immunization device provided by this utility model.

[0030] Figure 3 This is a schematic diagram of the liquid injection unit of a poultry immunization device provided by this utility model. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] [First Embodiment]

[0035] like Figure 1-3 The image shows a poultry immunization device according to the first embodiment of this utility model. It includes a main body, with a clamping unit 1 and an eye / nasal drop unit 5 located on one side of the bottom of the main body. The clamping unit 1 clamps the poultry to facilitate subsequent injection and eye / nasal drop procedures. The eye / nasal drop unit 5 sprays medication into the poultry's mouth, nose, and eyes. An injection unit 2 is located on the other side of the bottom of the main body. The injection unit 2 is connected to the clamping unit 1 and the eye / nasal drop unit 5 via pipes to provide them with corresponding injection and spray medications. A protective shielding unit 3 is provided on the surface of the clamping unit 1 and the eye / nasal drop unit 5. The protective shielding unit 3 covers the mechanical moving parts of the main body, preventing unexpected mechanical injury to the operator. It also prevents the operator from pricking their hand when holding the poultry for injection. Furthermore, the protective shielding unit 3 is equipped with a safety lock, which can pause the device and prevent it from starting if the protective shielding unit 3 needs to be opened.

[0036] A buffer storage bin 6 is located at the bottom of the clamping unit 1 and the eye and nose drop unit 5 to temporarily store and receive immunized chicks. The bottom of the buffer storage bin 6 has an automatically opening and closing door. When the preset number of immunized chicks is reached, the bin is considered to have reached the preset number of chicks in the chick basket, and the door automatically closes. Subsequent immunized chicks are then temporarily stored inside the buffer storage bin 6. Therefore, the number of chicks to be immunized in each batch can be preset as needed. During operation, the bottom door of the buffer storage bin 6 remains open. After immunization, the chicks fall through the buffer storage bin 6 into the chick basket below. When the number of immunized chicks in the chick basket reaches the preset value, the door of the buffer storage bin 6 is closed to temporarily store subsequent immunized chicks inside. At this point, the operator needs to replace the chick basket and manually confirm the opening of the buffer storage bin door on the equipment display screen, thus ensuring the accurate number of chicks in the chick basket after immunization.

[0037] A control unit 4 is located on the top of the device. The control unit is connected to the clamping unit 1, the injection unit 2 and the eye and nose drop unit 5 to control them to perform corresponding actions.

[0038] like Figure 1-2 As shown, the clamping unit 1 in this embodiment includes a clamping block assembly 11 disposed on the front side of the machine body. The clamping block assembly 11 includes a clamping block 111. A clamping rod 112 capable of moving towards or away from each other is disposed on the front side of the clamping block 111. The clamping rod 112 is used to clamp the head of the chick from both sides. A trigger block 113 is disposed inside the clamping block 111 and between the two clamping rods 112. When the trigger block 113 has no pushing action, the two clamping rods 112 move away from each other. When the trigger block 113 is pushed, it drives the two clamping rods 112. The two clamping rods 112 move towards each other. Therefore, when the chick's head is pressed onto the clamping block 111 so that its beak pushes the trigger block 113, the clamping rods 112 can be driven to clamp the chick's head. A reset cylinder 114 is provided on the rear side of the trigger block 113 to help the trigger block reset. The piston rod of the reset cylinder 114 is connected to the trigger block 113 to drive the trigger block 113 to move synchronously. After immunization, the piston rod of the reset cylinder 114 pushes the trigger block 113 to extend and return it to its original position.

[0039] In addition, in order for the eye and nose drop unit 5 to successfully achieve the eye and nose drop effect on the chicks, for the clamping block assembly 11 with a symmetrical layout, when the left clamping block assembly is inserted into the chick's head, the left eye and nose drop nozzle 17 sprays the medicine through the reserved notch of the left clamping block 111 onto the exposed eyes and nose of the chick; similarly, the chicks in the right clamping block assembly 11 are sprayed with medicine through the reserved notch of the right clamping block 111 onto the exposed eyes and nose of the chicks.

[0040] like Figure 2 As shown, the clamping unit 1 in this embodiment also includes a lifting cylinder 12. The cylinder body 121 of the lifting cylinder 12 is fixed inside the machine body, and the end of the piston rod 122 of the lifting cylinder is fixedly connected to its bottom clamping block assembly 11. Thus, the bottom piston rod 122 of the lifting cylinder drives the clamping block assembly 11 fixedly connected to it to move up and down synchronously, thereby driving the chicks clamped inside the clamping block assembly 11 to move up and down synchronously. Figure 2 As shown, a horizontal cylinder 13 is also fixedly connected to the middle of the lifting cylinder 12. The piston rod 131 of the horizontal cylinder 13 is fixedly connected to the needle cylinder 14 and the control block 15. The two sides of the piston rod of the needle cylinder 14 are fixedly connected to the injection needle 16 and the eye drop / nasal spray head 17, respectively. Thus, the needle cylinder 14 drives the injection needle 16 and the eye drop / nasal spray head 17 to move up and down synchronously to achieve the injection and spraying action on the chicks. The control block 15 is used to press the back of the chick's neck, thereby further ensuring the limiting effect on the chick.

[0041] like Figure 3As shown, the injection unit 2 in this embodiment includes an injection cylinder 21. The top of the piston rod of the injection cylinder is fixedly connected to a buffer block 24. The buffer block 24 can approach and abut against the injection rod 22 of the top syringe. The syringe barrel 23 is fixed to one side of the clamping unit 1, and the top injection port of the syringe barrel is connected to the injection needle and the eye / nasal drop unit 5 through pipes. The piston rod of the injection cylinder drives the buffer block 24 to approach and abut against the injection rod 22, thereby squeezing the injection rod 22 upward inside the syringe barrel 23, and thus squeezing the injection liquid and sprayed agent inside the syringe barrel 23 into the corresponding injection needle 16 and eye / nasal drop spray head 17. Preferably, by fine-tuning the position of the clamping block 25, the buffer block 24 can uniformly squeeze each injection rod 22 upward inside the syringe barrel 23, thereby effectively ensuring the uniformity and stability of the squeezing of the injection liquid and sprayed agent. To meet different drug injection and spraying needs, the injection time and injection flow rate of the syringe can be adjusted as needed.

[0042] Furthermore, as a further preferred option,

[0043] The clamping assembly also includes a position switch, which is triggered only when the two clamping rods move toward each other to a preset position. When the position switch is triggered, the lifting cylinder begins to rise.

[0044] The lifting cylinder also includes a lifting upper stop switch and a lifting lower stop switch. When the piston rod of the lifting cylinder moves to the lifting upper stop position and activates the lifting upper stop switch, a start signal is sent to the horizontal cylinder. When the piston rod of the lifting cylinder moves to the lifting lower stop position and activates the lifting lower stop switch, the immunization process is determined to be over.

[0045] The horizontal cylinder also includes a rear stop switch. When the piston rod of the horizontal cylinder moves to the rear stop position and activates the rear stop switch, a start signal is sent to the needle cylinder.

[0046] The needle cylinder also includes a needle upper stop position switch and a needle lower stop position switch. When the piston rod of the needle cylinder moves to the needle lower stop position and activates the needle lower stop position switch, a start signal is sent to the injection cylinder. When the piston rod of the needle cylinder moves to the needle upper stop position and activates the needle upper stop position switch, a start signal is sent to the horizontal cylinder.

[0047] The injection cylinder also includes an injection top dead center switch and an injection bottom dead center switch. When the piston rod of the injection cylinder moves to the injection top dead center position and activates the injection top dead center switch, the injection is confirmed to be finished, and the injection cylinder moves in the opposite direction to release the injection rod. When the piston rod of the injection cylinder moves to the injection bottom dead center position and activates the injection bottom dead center switch, the injection is confirmed to be finished, and the injection cylinder returns to its initial state.

[0048] The specific working process of this embodiment satisfies:

[0049] 1) The operator holds the chick, pushes the back of its head, inserts its beak into the clamping block, and the beak pushes the trigger block, so the chick's head is automatically clamped by the clamping rod and fixed in the clamping block, and at the same time the position switch is triggered.

[0050] 2) After the position switch is triggered, the lifting cylinder retracts upward, driving the clamping block assembly and the chicks inside it to move upward. When the upper stop position switch of the lifting cylinder is activated, a start signal is sent to the horizontal cylinder.

[0051] 3) After receiving the start signal, the horizontal cylinder retracts, driving the control block and injection needle and other components to move towards the chick side, so that the control block presses against the back of the chick's neck. When the horizontal cylinder's rear stop switch is triggered, a start signal is sent to the needle cylinder.

[0052] 4) After receiving the start signal, the needle cylinder extends downward, driving the injection needle downward to puncture the chicks. When the lower stop switch of the cylinder is triggered, a start signal is sent to the injection cylinder.

[0053] 5) After receiving the start signal, the injection cylinder extends upward, driving the buffer block to push the syringe upward to inject liquid. The syringe injects the medicine into the chicks, and the eye and nose spray nozzle sprays the medicine into the eyes and nose of the chicks.

[0054] 6) When the top stop switch of the injection cylinder is triggered, the injection is considered to be over, the injection cylinder moves in the opposite direction, and the syringe is released;

[0055] 7) While the injection cylinder moves in the opposite direction, the needle cylinder retracts and the injection needle is pulled out from the neck of the chick. When the upper stop switch of the needle cylinder is triggered, a start signal is sent to the horizontal cylinder.

[0056] 8) The horizontal cylinder extends forward, causing the control block, injection needle, and other components to disengage from the gripper of the chicks;

[0057] 9) At the same time, the reset cylinder extends, pushing the trigger block and clamping rod to release the clamp on the chick's head. The chick falls naturally, passing through the temporary storage bin and then into the chick basket.

[0058] 10) At the same time, the lifting cylinder extends downward, driving the clamping block and other components to move downward until the lower stop switch of the lifting cylinder is activated. At this point, the entire immunization process is considered to be over.

[0059] 11) The equipment automatically counts the number of chicks that have been injected with immunization. When the preset number of immunizations is reached, the bottom door of the buffer storage chamber is closed. After that, the immunized chicks will be temporarily stored in the buffer storage chamber.

[0060] 12) After changing the chick basket, manually confirm on the touch screen and reopen the door of the buffer storage compartment. The immunized chicks will then fall back into the chick basket.

[0061] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A poultry immunization device, comprising a body, characterized in that: A clamping unit (1) and an eye drop / nasal drop unit (5) are provided on one side of the bottom of the machine body. An injection unit (2) is provided on the other side of the bottom of the machine body. The injection unit (2) is connected to the clamping unit (1) and the eye drop / nasal drop unit (5) through pipes. A protective shielding unit (3) is provided on the surface of the clamping unit (1) and the eye drop / nasal drop unit (5). A buffer storage chamber (6) is provided at the bottom of the clamping unit (1) and the eye drop / nasal drop unit (5) to temporarily store the chicks that have completed immunization. A control unit (4) is provided at the top of the machine body. The control unit is connected to the clamping unit (1), the injection unit (2) and the eye drop / nasal drop unit (5) by signal.

2. The poultry immunization device according to claim 1, characterized in that: The clamping unit (1) includes a clamping block assembly (11) disposed on the front side of the machine body. The clamping block assembly (11) includes a clamping block (111). A clamping rod (112) capable of moving towards or away from each other is disposed on the front side of the clamping block (111). A trigger block (113) is disposed inside the clamping block (111) and between the two clamping rods (112). When the trigger block (113) has no pushing action, the two clamping rods (112) move away from each other. When the trigger block (113) is pushed, it drives the two clamping rods (112) to move towards each other. A reset cylinder (114) to help reset the trigger block is disposed on the rear side of the trigger block (113). The piston rod of the reset cylinder (114) is connected to the trigger block (113).

3. The poultry immunization device according to claim 2, characterized in that: The clamping unit (1) also includes a lifting cylinder (12), the cylinder body (121) of the lifting cylinder (12) is fixed inside the machine body, and the end of the piston rod (122) of the lifting cylinder is fixedly connected to its bottom clamping block assembly (11).

4. The poultry immunization device according to claim 3, characterized in that: A horizontal cylinder (13) is fixedly connected to the middle of the lifting cylinder (12), and the telescopic piston rod (131) of the horizontal cylinder (13) is fixedly connected to the needle cylinder (14) and the control block (15).

5. The poultry immunization device according to claim 4, characterized in that: The piston rod of the needle cylinder (14) is fixedly connected to the injection needle (16) and the eye drop / nasal spray head (17) on both sides respectively.

6. The poultry immunization device according to claim 5, characterized in that: The injection unit (2) includes an injection cylinder (21), the top of the piston rod of the injection cylinder is fixedly connected to a buffer block (24), the buffer block (24) can approach and abut against the injection rod (22) of the top syringe, the syringe barrel (23) is fixed to one side of the clamping unit (1), and the top injection port of the syringe barrel is connected to the injection needle and the eye drop / nasal drop unit (5) through pipes.

7. The poultry immunization device according to claim 6, characterized in that: The injection time and flow rate of the syringe can be adjusted as needed.

8. The poultry immunization device according to claim 1, characterized in that: The bottom of the buffer storage bin (6) is filled with chick baskets. The bottom of the buffer storage bin (6) is selectively connected to the chick baskets through an automatically opening and closing door. When the number of chicks that have completed immunization reaches a preset number, the door automatically closes, and the chicks that have completed immunization are temporarily stored inside the buffer storage bin (6).

9. A poultry immunization device according to claim 6, characterized in that: The clamping block assembly also includes a position switch, which is triggered only when the two clamping rods move toward each other to a preset position. When the position switch is triggered, the lifting cylinder begins to rise. The lifting cylinder also includes a lifting upper stop switch and a lifting lower stop switch. When the piston rod of the lifting cylinder moves to the lifting upper stop position and activates the lifting upper stop switch, a start signal is sent to the horizontal cylinder. When the piston rod of the lifting cylinder moves to the lifting lower stop position and activates the lifting lower stop switch, the immunization process is determined to be over. The horizontal cylinder also includes a rear stop position switch. When the piston rod of the horizontal cylinder moves to the rear stop position and activates the rear stop position switch, a start signal is sent to the needle cylinder. The needle cylinder also includes a needle upper stop position switch and a needle lower stop position switch. When the piston rod of the needle cylinder moves to the needle lower stop position and activates the needle lower stop position switch, a start signal is sent to the injection cylinder. When the piston rod of the needle cylinder moves to the needle upper stop position and activates the needle upper stop position switch, a start signal is sent to the horizontal cylinder. The injection cylinder also includes an injection top dead center switch and an injection bottom dead center switch. When the piston rod of the injection cylinder moves to the injection top dead center position and activates the injection top dead center switch, the injection is confirmed to be finished, and the injection cylinder moves in the opposite direction to release the injection rod. When the piston rod of the injection cylinder moves to the injection bottom dead center position and activates the injection bottom dead center switch, the injection is confirmed to be finished, and the injection cylinder returns to its initial state.

Images